Refrigeration equipment

Abstract

The utility model relates to refrigeration equipment. The refrigeration equipment comprises a humidity sensor, a condensing device and a humidifying device, and the humidifying device comprises a first-stage water pan, a wet film evaporator, a humidifying fan and a second-stage water pan. According to the refrigeration equipment, the humidity in the cabinet body of the refrigeration equipment is adjusted through the humidification device by means of the condensate water generated by the condensation device, humidification of the equipment can be achieved without an external water source, humidity adjustment of the interior of the refrigeration equipment can be achieved under the condition that no water source exists or the refrigeration equipment is applied to mobile equipment, and the refrigeration equipment is convenient to use. By the adoption of the wet film evaporator, air phase humidifying can be achieved, the humidity in the cabinet body of the refrigeration equipment is kept at the specified humidity, in addition, condensate water from the wet film evaporator is collected through the second-stage water pan, the condensate water is returned to the first-stage water pan, and the humidity of the cabinet body is increased. Condensate water which is not evaporated by the wet film evaporator can be recycled.

Description

Technical Field

[0001] This application relates to a refrigeration device. Background Technology

[0002] In existing refrigeration equipment, for example, to preserve fruits and vegetables, it is desirable to install humidity control devices such as humidifiers to maintain appropriate humidity levels inside the refrigeration unit. This requires periodically adding water to the humidifiers, or, in cases where the refrigeration equipment is a mobile device that can be transported by vehicle, sometimes a water tank or other water storage device is also necessary. Therefore, there is a problem that in locations without a water source, it is difficult to maintain humidity control for an extended period. Utility Model Content

[0003] This application is made in view of the technical problems existing in the prior art. One object of this application is to provide a refrigeration device.

[0004] According to one aspect of this application, a refrigeration device is provided, comprising a cabinet, a condensing device, a humidifying device, a humidity sensor, and a control device. The condensing device, the humidifying device, and the humidity sensor are disposed within the cabinet. The cabinet includes a fresh air inlet and an exhaust outlet. The condensing device condenses moisture in the air within the cabinet to produce condensate. The humidifying device includes: a primary water collection tray for collecting the condensate produced by the condensing device; and a wet film evaporator for evaporating the condensate from the air within the cabinet. The condensate from the primary water collection tray evaporates to form water vapor; a humidifying fan disperses the water vapor generated by the wet film evaporator into the cabinet; and a secondary water collection tray collects condensate from the humidifying device and can either return the collected condensate to the primary water collection tray or discharge the collected condensate outside the cabinet. The control device controls the condensing device and the humidifying device based on the detection results of the humidity sensor to switch the refrigeration equipment between humidification and dehumidification modes.

[0005] According to the above-described refrigeration equipment of this application, the humidification device may also include a water distributor that sprays condensate water onto the wet film evaporator. The water distributor is connected to the primary water receiving tray via a condensate water supply pipe, and a flow regulating valve is provided in the condensate water supply pipe.

[0006] According to the above-described refrigeration equipment of this application, the control device may also be configured such that when the humidity sensor detects that the humidity inside the cabinet is lower than a specified value, the refrigeration equipment is switched to a humidification mode. In the humidification mode, the condensate generated by the condensing device is collected into the primary water receiving tray, the flow regulating valve is opened, and condensate is supplied from the primary water receiving tray to the wet film evaporator. Furthermore, the humidifying fan is used to disperse the water vapor generated by the wet film evaporator into the cabinet.

[0007] According to the above-described refrigeration equipment of this application, the control device may also be configured such that when the humidity sensor detects that the humidity inside the cabinet is higher than a specified value, the refrigeration equipment is switched to dehumidification mode. In the dehumidification mode, the flow regulating valve is closed, the condensate supply from the primary water receiving pan to the wet film evaporator is cut off, and the humidifying fan is put into a non-working state.

[0008] According to the above-described refrigeration equipment of this application, a liquid level sensor may also be provided in the primary water receiving tray. When the liquid level detected by the liquid level sensor is lower than a specified value, the control device opens the fresh air inlet and the condensing device so as to generate condensate water using the condensing device and supply it to the primary water receiving tray.

[0009] According to the above-described refrigeration equipment of this application, the primary water receiving tray may also be provided with a primary overflow pipe, wherein the primary overflow pipe is configured such that when the liquid level of the condensate in the primary water receiving tray is higher than the upper limit value, the portion of the condensate above the upper limit value overflows into the secondary water receiving tray.

[0010] According to the above-described refrigeration equipment of this application, the secondary water receiving tray may also be provided with a drain pipe, and a drain valve may be provided in the drain pipe. In the dehumidification mode, by opening the drain valve, the condensate in the secondary water receiving tray is discharged to the outside of the cabinet through the drain pipe.

[0011] According to the above-mentioned refrigeration equipment of this application, the secondary water receiving tray may also be provided with a secondary overflow pipe, wherein the secondary overflow pipe is configured to allow the portion of condensate above the upper limit value to overflow outside the cabinet when the liquid level of condensate in the secondary water receiving tray is higher than the upper limit value.

[0012] According to the above-described refrigeration equipment of this application, a three-stage water receiving tray may be provided in the external space of the cabinet, which is separated from the internal space of the cabinet. A heater is provided in the three-stage water receiving tray. Water discharged from the secondary water receiving tray through the drain pipe and / or the secondary overflow pipe into the tertiary water receiving tray is heated and evaporated by the heater.

[0013] Effects of the utility model

[0014] According to the refrigeration equipment of this application, the humidity inside the refrigeration equipment cabinet is regulated by using condensate generated by the condensing device through a humidification device. Humidification of the equipment can be achieved without an external water source. It can regulate the humidity inside the refrigeration equipment when there is no water source or when it is used in mobile equipment. Furthermore, by using a wet film evaporator, vapor phase humidification can be achieved. In addition, by using a secondary water collection tray to collect the condensate from the wet film evaporator and returning the condensate to the primary water collection tray, the condensate that has not been evaporated by the wet film evaporator can be recycled and reused.

[0015] In addition, by setting up a water distributor, condensate can be supplied to the wet film evaporator evenly, improving the evaporation efficiency of the wet film evaporator. Furthermore, by setting up a flow regulating valve, it is possible to control whether condensate is supplied to the wet film evaporator and the amount of condensate supplied, thereby achieving flexible control of humidity.

[0016] In addition, by switching the refrigeration equipment to humidification mode when the humidity is below the specified value, the humidity inside the refrigeration equipment can be adjusted or maintained at the specified humidity.

[0017] In addition, by switching the refrigeration equipment to dehumidification mode when the humidity is higher than the specified value, the humidity inside the refrigeration equipment can be regulated or maintained at the specified humidity.

[0018] In addition, by controlling the opening of the fresh air inlet and the condenser based on the liquid level detected by the liquid level sensor, sufficient condensate can be maintained in the primary water tray to ensure the condensate supply to the wet film humidifier.

[0019] In addition, by setting up a primary overflow pipe, if the condensate collected in the primary water tray exceeds the amount of water consumed by the humidifier for humidification, the excess water can be discharged to the secondary water tray through the primary overflow pipe, thus preventing excessive condensate from overflowing into the cabinet.

[0020] In addition, the secondary water receiving tray is equipped with a drain pipe and a drain valve. In dehumidification mode, the large amount of condensate collected in the secondary water receiving tray is discharged to the outside of the cabinet, which can prevent the condensate in the secondary water receiving tray from overflowing into the cabinet.

[0021] In addition, by setting up a secondary overflow pipe, if there is too much condensate collected in the secondary drip tray, the excess water can be discharged to the outside of the cabinet through the secondary overflow pipe, thus preventing the condensate in the secondary drip tray from overflowing into the cabinet.

[0022] In addition, by installing a three-stage water collection tray and heater in the external space of the cabinet, which is separated from the internal space of the cabinet, and heating and evaporating the water discharged from the cabinet, it is possible to prevent the water discharged from the secondary overflow pipe from being directly discharged into the environment. Attached Figure Description

[0023] Figure 1 This is a schematic diagram illustrating the refrigeration equipment of this application.

[0024] Figure 2 This is a flowchart illustrating the control method of the refrigeration equipment of this application.

[0025] Figure 3 This is a flowchart illustrating the drainage process of the refrigeration equipment described in this application.

[0026] Explanation of reference numerals in the attached figures:

[0027] 1. Exhaust port

[0028] 1a Exhaust valve

[0029] 2. Condensation unit

[0030] 3 Fresh air intake

[0031] 3a Intake valve

[0032] 4. Primary water receiving tray

[0033] 4a Condensate supply pipe

[0034] 5 filters

[0035] 6. Flow regulating valve

[0036] 7. Water distributor

[0037] 8. Wet film evaporator

[0038] 9 pumps

[0039] 10 Drain valve

[0040] 11 Heaters

[0041] 12 Three-stage water receiving trays

[0042] 13 Secondary overflow pipe

[0043] 14 Secondary water receiving tray

[0044] 14a Return water pipe

[0045] 15 Humidifier Fan

[0046] 16. Primary overflow pipe

[0047] 17 Liquid Level Sensor

[0048] 18 Humidity Sensor

[0049] 19 Cabinets

[0050] 20 Drain pipe

[0051] 21. External space of the cabinet

[0052] 100 Refrigeration Equipment Detailed Implementation

[0053] The present disclosure is described in detail below. In the following paragraphs, different aspects of the embodiments are defined in more detail. The aspects so defined may be combined with any other aspect or aspects unless expressly stated otherwise. In particular, any feature considered preferred or advantageous may be combined with one or more other features considered preferred or advantageous.

[0054] The terms "first" and "second" used in this disclosure are merely for ease of description and to distinguish different components with the same name, and do not indicate a sequential or primary / secondary relationship.

[0055] Furthermore, when a component is referred to as being "on" another component, the component may be directly on the other component, or it may be indirectly on the other component with one or more intermediate components inserted between them. Additionally, when a component is referred to as being "connected to" another component, the component may be directly connected to the other component, or it may be indirectly connected to the other component with one or more intermediate components inserted between them. In the following drawings, the same reference numerals denote the same components.

[0056] The descriptions of orientation or positional relationships using terms such as "upper," "lower," "top," "bottom," "front," "back," "inner," and "outer" in this disclosure are for the convenience of describing this disclosure only, and are not intended to indicate or imply that the device referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as limiting the scope of protection of this application.

[0057] The embodiments of this application will now be described in detail with reference to the accompanying drawings.

[0058] Figure 1 This is a schematic diagram illustrating the refrigeration equipment described in this application. Figure 1As shown, the refrigeration equipment 100 of this application has a cabinet 19. The cabinet 19 is provided with a fresh air inlet 3 and an exhaust outlet 1. An intake valve 3a is provided at the fresh air inlet 3, and an exhaust valve 1a is provided at the exhaust outlet 1. By opening the intake valve 3a, the refrigeration equipment 100 can introduce fresh air into the cabinet 19 through the fresh air inlet 3; by closing the intake valve 3a, it can prevent the introduction of fresh air into the cabinet 19 through the fresh air inlet 3. Similarly, by opening the exhaust valve 1a, it allows gas inside the cabinet 19 to be discharged to the outside. By closing the exhaust valve 1a, it prevents gas inside the cabinet 19 from being discharged to the outside.

[0059] A condenser 2 is installed inside the cabinet 19. Examples of condenser 2 include refrigeration devices such as air coolers or surface coolers. The condenser 2 exchanges heat with the fresh air introduced into the cabinet 19 from the fresh air inlet 3, thereby cooling the cabinet 19 and condensing the water vapor contained in the fresh air to produce condensate.

[0060] Inside the cabinet 19, below the condenser 2, there is a primary water collection tray 4. The condensate generated by the condenser 2 through heat exchange with the fresh air falls into the primary water collection tray 4 by gravity and is collected by the primary water collection tray 4.

[0061] A wet film evaporator 8 and a humidifying fan 15 are also installed inside the cabinet 19. Condensate collected from the condenser 2 in the primary drip tray 4 is supplied to the wet film evaporator 8. Figure 1 As shown, for example, a condensate supply pipe 4a is provided on the primary water receiving tray 4 to supply condensate to the wet film evaporator 8. Preferably, a water distributor 7 is connected to the condensate supply pipe 4a. Thus, the condensate collected in the primary water receiving tray 4 is transported to the water distributor 7 via the condensate supply pipe 4a, and then evenly sprayed from the water distributor 7 onto the wet film evaporator 8. The water sprayed onto the wet film evaporator 8 flows downwards along the wet film. During this process, heat and moisture exchange occurs between the water and air on the surface of the wet film, and the water vaporizes after absorbing heat to form water vapor. Simultaneously, the humidifying fan 15 is turned on to accelerate convection on the surface of the wet film evaporator 8, promoting water evaporation in the wet film evaporator 8, and evenly dispersing the formed water vapor within the cabinet 19. Furthermore, as... Figure 1 As shown, preferably, a flow regulating valve 6, such as a solenoid valve, can be installed in the condensate supply pipe 4a. By installing the flow regulating valve 6, it is possible to control whether condensate is supplied from the primary drip tray 4 to the wet film evaporator 8, and the flow rate of the condensate to be supplied. Furthermore, as... Figure 1As shown, preferably, a filter 5 is also provided in the condensate supply pipe 4a. By providing the filter 5 in the condensate supply pipe 4a, the water supplied from the primary water receiving pan 4 to the wet film evaporator 8 can be filtered, thereby preventing the wet film evaporator 8 from being contaminated by impurities contained in the water, which would lead to a decrease in evaporation efficiency and improve the service life of the wet film evaporator 8.

[0062] Inside the cabinet 19, below the wet film evaporator 8, a secondary water collection tray 14 is provided. Water that does not evaporate in the wet film evaporator 8 and flows downwards is collected in the secondary water collection tray 14.

[0063] A water return device is installed between the primary water receiving pan 4 and the secondary water receiving pan 14 to return the water collected in the secondary water receiving pan 14 to the primary water receiving pan 4. For example, as Figure 1 As shown, the water return device may include a return pipe 14a and a pump 9. By turning on the pump 9, water in the secondary water receiving pan 14 can be pumped back to the primary water receiving pan 4 via the return pipe 14a. By setting up the secondary water receiving pan 14, the return pipe 14a, and the pump 9, the water that is not evaporated in the wet film evaporator 8 can be recycled and reused.

[0064] The primary water receiving tray 4, wet film evaporator 8, humidifying fan 15 and secondary water receiving tray 14 described above can also be regarded as a whole as the humidification device of this application.

[0065] In addition, a liquid level sensor 17 can be installed in the primary water receiving pan 4. Thus, the opening and closing of components such as the fresh air inlet 3, the condenser 2, the flow regulating valve 6, and the humidifying fan 15 can be controlled based on the liquid level detected by the liquid level sensor 17 in the primary water receiving pan 4.

[0066] Furthermore, such as Figure 1 As shown, a primary overflow pipe 16 can be installed in the primary water receiving pan 4. The inlet of the primary overflow pipe 16 is located at a predetermined height from the bottom surface of the primary water receiving pan 4. Therefore, when the level of condensate collected in the primary water receiving pan 4 reaches or exceeds the predetermined height, condensate can flow from the inlet of the primary overflow pipe 16 into the primary overflow pipe 16, and then flow along the primary overflow pipe 16 to the secondary water receiving pan 14. Thus, if the rate of condensate collection in the primary water receiving pan 4 is greater than the rate of condensate consumption by the wet film evaporator 8, the condensate exceeding the predetermined height in the primary water receiving pan 4 will be discharged into the secondary water receiving pan 14 via the primary overflow pipe 16, thereby preventing excessive condensate in the primary water receiving pan 4 from overflowing into the cabinet 19.

[0067] In addition, such as Figure 1As shown, a secondary overflow pipe 13 can be provided in the secondary water receiving pan 14. The inlet of the secondary overflow pipe 13 is located at a predetermined height from the bottom surface of the secondary water receiving pan 14. Therefore, when the water level collected in the secondary water receiving pan 14 reaches or exceeds the predetermined height, condensate can flow from the inlet of the secondary overflow pipe 13 into the secondary overflow pipe 13, and then flow out of the cabinet 19 along the secondary overflow pipe 13. Thus, if the water collection speed in the secondary water receiving pan 14 is greater than the speed at which water is returned to the primary water receiving pan 4 using the pump 9 and the return pipe 14a, water exceeding the predetermined height in the secondary water receiving pan 14 will be discharged out of the cabinet 19 via the secondary overflow pipe 13, thereby preventing excessive water in the secondary water receiving pan 14 from overflowing into the cabinet 19.

[0068] In addition, such as Figure 1 As shown, in addition to the secondary overflow pipe 13, a drain pipe 20 for draining the water in the secondary water receiving pan 14 can also be provided. The inlet of the drain pipe 20 is located at the bottom of the secondary water receiving pan 14, and a drain valve 10 is provided in the drain pipe 20. Thus, by opening the drain valve 10, the water in the secondary water receiving pan 14 can be drained. In the case where the refrigeration equipment 100 is a mobile device that can be transported by vehicles, etc., in order to prevent the water in the primary water receiving pan 4 and the secondary water receiving pan 14 from overflowing into the cabinet 19 due to the movement of vehicles, etc. during transportation, the drain valve 10 can be opened, and the water in the humidification device can be drained using the drain pipe 20.

[0069] Furthermore, such as Figure 1 As shown, the refrigeration equipment 100 may also include an external space 21 separated from the internal space of the cabinet 19 (i.e., it may be an equipment room separated from the cabinet 19, or an open space open to the outside of the refrigeration equipment 100). A three-stage drip tray 12 may be installed in this external space 21. Water from the secondary overflow pipe 13 or the drain pipe 20 is discharged into the three-stage drip tray 12. A heater 11, such as an electric heater, is installed in the three-stage drip tray 12. By heating the water in the three-stage drip tray 12 with the heater 11, the water can be evaporated and dissipated into the air. This prevents the direct discharge of water from the secondary overflow pipe 13 (i.e., water from inside the cabinet 19) into the environment, thus avoiding environmental impact.

[0070] In addition, the refrigeration equipment 100 of this application is also provided with a control device (not shown in the figure) for controlling the operation of the refrigeration equipment 100. Examples of control devices include, for example, a computer, a programmable logic controller, etc.

[0071] Below, refer to Figure 2 and Figure 3The flowchart shown illustrates the control method of the refrigeration equipment 100 of this application.

[0072] First, the control device controls the refrigeration equipment 100 based on the humidity detected by the humidity sensor 18 installed inside the cabinet 19. When the humidity detected by the humidity sensor 18 is lower than a specified value, the control device controls the refrigeration equipment 100 in humidification mode.

[0073] In humidification mode, the liquid level in the primary water collection tray 12 is detected by the liquid level sensor 17. When the liquid level sensor 17 detects that the primary water collection tray 12 is below a predetermined value, the control device opens the air inlet valve 3a and the exhaust valve 1a, and simultaneously activates the condenser 2. This allows fresh air containing water vapor to flow into the cabinet 19 of the refrigeration unit 100 through the fresh air inlet 3. The condenser 2 cools the fresh air flowing into the cabinet 19, causing the water vapor in the fresh air to condense into condensate. The air that has been condensed by the condenser 2 is then discharged from the exhaust port 1. The condenser 2 can be, for example, a fan cooler, which is part of the refrigeration unit of the refrigeration unit 100. When using a fan cooler as the condenser 2, it is preferable to operate the fan cooler at a low temperature and low fan speed (i.e., operate the fan cooler at a lower target temperature and fan speed than when simply refrigerating) to generate sufficient condensate as quickly as possible. Furthermore, as an example of the condensing device 2, it is not limited to an air cooler; other devices that can generate condensate, such as a surface cooler, can also be used. The condensate generated by the condensing device 2 is collected in a primary drip tray 4 located below the condensing device 2.

[0074] When the level sensor 17 detects that the liquid level in the primary drip tray 4 has reached or exceeded a predetermined value, the control device closes the air inlet valve 3a and the exhaust valve 1a, stopping the flow of fresh air within the cabinet 19, and causing the condensing device 2, such as an air cooler, to operate at the set temperature in normal cooling mode. The control device then opens the flow regulating valve 6, allowing the condensate collected in the primary drip tray 4 to flow into the condensate supply pipe 4a. The condensate flowing into the condensate supply pipe 4a passes through the filter 5 to filter impurities mixed in with the condensate in the primary drip tray 4, and then flows to the distributor 7, which sprays it evenly onto the wet film evaporator 8. Preferably, the control device is configured to control the opening of the flow regulating valve 6 based on the actual humidity value detected by the humidity sensor 18 and a preset humidity target value, thereby controlling the amount of condensate supplied from the primary drip tray 4 to the wet film evaporator 8. The condensate flowing over the surface of the wet film in the wet film evaporator 8 vaporizes and forms water vapor through heat and moisture exchange with the air. Additionally, the control device activates a humidifying fan, which generates convection on the surface of the wet film in the evaporator 8, accelerating airflow and thus allowing for more thorough heat and moisture exchange between the condensate and the air, thereby speeding up the evaporation rate. Furthermore, preferably, the control device can also control the rotational speed of the humidifying fan to regulate its airflow rate, thereby adjusting the evaporation rate of the condensate in the wet film evaporator 8.

[0075] Condensate that flows through the wet film evaporator 8 but is not evaporated flows down from the evaporator 8 and is collected in the secondary water collection pan 14. The control device operates the pump 9 to return the water collected in the secondary water collection pan 14 to the primary water collection pan 4 via the return water pipe 14a. By setting the secondary water collection pan 14 downstream of the wet film evaporator 8 and using the pump 9 to return the water in the secondary water collection pan 14 to the primary water collection pan 4 via the return water pipe 14a, the water that is not evaporated in the wet film evaporator 8 can be recovered and reused. This allows for full utilization of the condensate produced by the condensing unit 2, shortens the operating time of the condensing unit 2, reduces energy consumption, and thus improves the working efficiency of the condensing unit 2.

[0076] When the control device controls the opening of the flow regulating valve 6 and the speed of the humidifying fan 15 based on the actual humidity inside the cabinet 19 and / or the target humidity set by the user, resulting in a reduction in the evaporation rate of water in the wet film evaporator 8, the amount of condensate consumed by the wet film evaporator 8 will be significantly less than the amount of condensate produced by the condensing device 2. In this case, a large amount of water will quickly collect in the primary drip tray 4. To prevent water from overflowing from the primary drip tray 4 and flowing into the cabinet 19 due to the rapid increase in water volume, which could adversely affect the fruits, vegetables, and other substances stored in the cabinet 19, the rapidly increasing water needs to be drained from the primary drip tray 4 in a timely manner. According to the refrigeration equipment 100 of this application, a primary overflow pipe 16 is connected to the primary water receiving tray 4 as described above. When the liquid level in the primary water receiving tray 4 reaches or exceeds the height of the inlet of the primary overflow pipe 16 connected to the primary water receiving tray 4, the portion of water exceeding that height in the primary water receiving tray 4 flows out from the primary water receiving tray 4 through the primary overflow pipe 16 and into the secondary water receiving tray 14. This prevents excessive water in the primary water receiving tray 4 from overflowing into the cabinet 19 and affecting fruits and vegetables. Similarly, a secondary overflow pipe 13 is connected to the secondary water receiving tray 14. When the water collected in the secondary water tray 14 from the primary water tray 4 (including water that flows through the wet film evaporator 8 but is not evaporated and / or water overflowing from the primary overflow pipe 16) becomes excessive, that is, when the liquid level in the secondary water tray 14 reaches or exceeds the height of the inlet of the secondary overflow pipe 13 connected to the secondary water tray 14, the portion of water exceeding this height in the secondary water tray 14 flows out of the secondary water tray 14 through the secondary overflow pipe 13 and out of the cabinet 19. This prevents excessive water in the secondary water tray 14 from overflowing into the cabinet 19 and affecting fruits and vegetables.

[0077] Preferably, as described above, a three-stage water collection tray 12 is provided in the external space 21 of the cabinet, which is separated from the internal space of the cabinet 19. Water flowing from the secondary overflow pipe 13 flows into the tertiary water collection tray 12, is heated by a heater (e.g., an electric heater) installed in the tertiary water collection tray 12, evaporates, and dissipates into the air. This avoids the direct discharge of water from the secondary overflow pipe 13 (i.e., water from inside the cabinet 19) into the environment, thus preventing environmental impact.

[0078] When the humidity sensor 18 detects that the humidity inside the cabinet 19 exceeds the specified value, the control device controls the refrigeration equipment 100 in dehumidification mode.

[0079] When a cooler is used as the condenser unit 2, in dehumidification mode, the control device operates the cooler as the condenser unit 2 at a target temperature and airflow speed higher than the target temperature and airflow speed in humidification mode. Simultaneously, the control device opens the flow regulating valve 6 and shuts off the humidifying fan 15 and pump 9. As a result, the condensate generated by the condenser unit 2, collected in the primary drip tray 4, flows into the secondary drip tray 14 via the wet film evaporator 8. Since the humidifying fan 15 is shut off, only a small portion of the water flowing through the wet film evaporator 8 is evaporated, or almost none is evaporated, and it flows directly into the secondary drip tray 14. Furthermore, the control device opens the drain valve 10, discharging the water flowing into the secondary drip tray 14 through the drain pipe 20 outside the cabinet 19, for example, into the tertiary drip tray 12, where it is heated by the heater 11, evaporates, and dissipates into the atmosphere.

[0080] In addition, such as Figure 3 As shown, when the refrigeration equipment 100 of this application is applied to a mobile device such as a vehicle, for example, in the moving state of the mobile device such as a vehicle in motion, in order to prevent the water in the primary water receiving pan 4 and / or the secondary water receiving pan 14 from shaking and overflowing into the cabinet 19 due to the movement of the device, the operator (e.g., the driver) can issue a drainage command to the control device by means of buttons or a touch screen. When the control device receives the drainage command, the control device controls the refrigeration equipment 100 to open the flow regulating valve 6, the drain valve 10, and the pump 9 to drain the water in the primary water receiving pan 4 and the secondary water receiving pan 14.

[0081] The refrigeration equipment 100 and its control method of this application can be applied to fields requiring humidification of items stored within the refrigeration equipment, and in particular, can be advantageously applied to fruit and vegetable preservation equipment installed in mobile devices such as vehicles. When the refrigeration equipment 100 and its control method of this application are applied to fruit and vegetable preservation equipment installed in mobile devices such as vehicles, even when the vehicle or other equipment is parked in a place without a water source, the humidity inside the refrigeration equipment can be regulated using condensate generated by the equipment itself in the absence of a water source. Furthermore, by precisely controlling the humidity inside the refrigeration equipment 100 as needed while simultaneously cooling the interior, fruits and vegetables can be effectively preserved. Moreover, since the refrigeration equipment 100 and its control method of this application employ wet film vaporization humidification circulation technology to achieve gas-phase humidification, it is possible to prevent water droplets from accumulating on the surface of fruits and vegetables, thus preventing surface rot caused by water droplet accumulation.

[0082] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and not to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application, and they should all be covered within the scope of the claims and specification of this application. In particular, as long as there is no structural conflict, the various technical features mentioned in the embodiments can be combined in any way. This application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A refrigeration device, comprising a cabinet, a condenser, a humidifier, a humidity sensor, and a control device, wherein the condenser, the humidifier, and the humidity sensor are disposed within the cabinet, characterized in that, The cabinet includes a fresh air intake and an exhaust vent. The condensation device can condense the moisture in the air inside the cabinet to produce condensate. The humidification device includes: A primary water receiving tray, which is used to collect condensate generated by the condensation device; A wet film evaporator, which enables the condensate from the primary water receiving pan to evaporate into water vapor; A humidifying fan, capable of dispersing water vapor generated by the wet film evaporator into the cabinet body; and The secondary water collection tray is capable of collecting condensate from the humidifier and can either return the collected condensate to the primary water collection tray or discharge the collected condensate to the outside of the cabinet. The control device controls the condenser and the humidifier based on the detection results of the humidity sensor, so as to switch the refrigeration equipment between humidification mode and dehumidification mode.

2. The refrigeration equipment as described in claim 1, characterized in that, The humidification device also includes a water distributor that sprays condensate water onto the wet film evaporator. The water distributor is connected to the primary water receiving tray via a condensate water supply pipe, and a flow regulating valve is installed in the condensate water supply pipe.

3. The refrigeration equipment as described in claim 2, characterized in that, The control device is configured to switch the refrigeration equipment to humidification mode when the humidity sensor detects that the humidity inside the cabinet is lower than a specified value. In the humidification mode, the condensate generated by the condenser is collected in the primary water receiving tray, the flow regulating valve is opened, and condensate is supplied from the primary water receiving tray to the wet film evaporator. The humidifying fan is used to disperse the water vapor generated by the wet film evaporator into the cabinet.

4. The refrigeration equipment as described in claim 2 or 3, characterized in that, The control device is configured to switch the refrigeration equipment to dehumidification mode when the humidity sensor detects that the humidity inside the cabinet is higher than a specified value. In the dehumidification mode, the flow regulating valve is closed to cut off the supply of condensate water from the primary water receiving pan to the wet film evaporator, and the humidifying fan is put into a non-working state.

5. The refrigeration equipment as described in claim 4, characterized in that, A liquid level sensor is installed in the primary water receiving tray. When the liquid level detected by the liquid level sensor is lower than a specified value, the control device opens the fresh air inlet and the condensing device so that condensate is generated by the condensing device and supplied to the primary water receiving tray.

6. The refrigeration equipment as described in claim 5, characterized in that, The primary water receiving pan is equipped with a primary overflow pipe, which is configured to allow the portion of condensate above the upper limit to overflow into the secondary water receiving pan when the condensate level in the primary water receiving pan is higher than the upper limit.

7. The refrigeration equipment as described in claim 6, characterized in that, The secondary water receiving tray is equipped with a drain pipe, and a drain valve is installed in the drain pipe. In the dehumidification mode, by opening the drain valve, the condensate in the secondary water receiving tray is discharged to the outside of the cabinet through the drain pipe.

8. The refrigeration equipment as described in claim 7, characterized in that, The secondary water receiving tray is also equipped with a secondary overflow pipe, which is configured to allow the portion of condensate above the upper limit to overflow outside the cabinet when the condensate level in the secondary water receiving tray is higher than the upper limit.

9. The refrigeration equipment as described in claim 8, characterized in that, A three-stage water collection tray is provided in the external space of the cabinet, which is separated from the internal space of the cabinet. A heater is provided in the three-stage water collection tray. Water discharged from the secondary water collection tray through the drain pipe and / or the secondary overflow pipe into the tertiary water collection tray is heated and evaporated by the heater.

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