Ventilation cooling device for apple storage

Abstract

The invention relates to the technical field of apple storage, in particular to a ventilation cooling device for apple storage. The device comprises a storeroom and a base, the storeroom is fixedly connected to a top wall plate of the base, a pre-cooling chamber and a storage chamber are arranged in the storeroom, and a communication assembly is arranged between the pre-cooling chamber and the storage chamber and used for guiding gas in the storage chamber into the pre-cooling chamber. Through the arrangement of the communicating assembly, airflow can enter the second air cavity and enter the pre-cooling chamber through the air holes in the top of the second air cavity, part of cold air in the storage chamber can be brought out through flowing of the airflow, and when apples are pre-cooled in the pre-cooling chamber, the cold air in the storage chamber is brought out, so that the apples in the pre-cooling chamber are pre-cooled, and the storage efficiency of the apples is improved. According to the apple precooling device, cooling of apples in the precooling chamber can be further accelerated, the time required for precooling the apples can be shortened, and when airflow blows the apples in the precooling chamber, ethylene emitted from the surfaces of the apples in the precooling chamber can be blown upwards to be discharged.

Description

Technical Field

[0001] The invention relates to the field of apple storage, in particular to a ventilation and cooling device for apple storage. Background Art

[0002] Apple is a widely grown and consumed fruit belonging to the genus Malus in the family Rosaceae. Apple is rich in carotene, vitamin C, minerals (such as potassium, phosphorus, magnesium, calcium) and dietary fiber, and has many benefits for human health, such as protecting eyesight, preventing cardiovascular diseases, and promoting intestinal peristalsis.

[0003] A patent with publication number CN216415184U discloses an intelligent ventilation and cooling device for an apple fresh-keeping warehouse, including a storage frame. The storage frame is functionally divided into a storage cavity and an exhaust cavity connected to the storage cavity. The four corners of the storage frame are respectively provided with mortise and tenon structures, which are divided into mating feet and plug-in feet from top to bottom.

[0004] However, the above ventilation and cooling device still has certain defects when in use. In the prior art, after apples are picked and before they are stored, they need to be pre-cooled, and the pre-cooling time of apples is usually longer. Secondly, apples are usually stored at low temperatures in a cold storage, and the storage temperature of apples is usually -1-0°C, while the evaporator of the cold storage is often prone to frost. If the evaporator is frosted, it will lead to insufficient cooling in the cold storage, which will cause the storage temperature of the apples to rise, which may easily cause the apples to deteriorate. Summary of the invention

[0005] The purpose of the present invention is to solve the shortcomings of the prior art and to propose a ventilation and cooling device for apple storage.

[0006] In order to achieve the above purpose, the technical solution adopted by the present invention is: a ventilation and cooling device for apple storage, comprising a warehouse and a base, the warehouse is fixedly connected to the top wall panel of the base, a pre-cooling room and a storage room are arranged inside the warehouse, a connecting component is arranged between the pre-cooling room and the storage room, the connecting component is used to guide the gas in the storage room to the pre-cooling room, billboards are fixedly connected to both sides of the warehouse, extension plates are fixedly connected to the top of both sides of the warehouse, a cleaning and cooling component is arranged on the extension plate, the cleaning and cooling component is used to clean the billboards, a water tank is provided inside the base, the water tank is used to supply water to the cleaning and cooling component, an evaporator is arranged at one end of the top of the base, the water tank is also used to clean frost on the evaporator.

[0007] Preferably, a first door panel is hinged at one end of the warehouse, and a second door panel is also hinged inside the warehouse, the second door panel is located between the pre-cooling chamber and the storage chamber, a first air cavity is opened in the bottom wall panel of the storage chamber, an air outlet chamber is opened in the top wall panel of the storage chamber, an activated carbon plate for absorbing ethylene emitted by apples is fixedly connected to the top wall panel of the air outlet chamber, a second air cavity is opened in the bottom wall panel of the pre-cooling chamber, a plurality of air holes are opened on the top of the first air cavity and the second air cavity, the air holes opened on the top of the first air cavity and the second air cavity are respectively connected to the storage chamber and the pre-cooling chamber, a plurality of guide holes are connected to the bottom of the air outlet chamber, and the guide holes are connected to the storage chamber at one end away from the air outlet chamber.

[0008] Preferably, the connecting component includes an induced draft duct, which is opened in the top wall panel of the warehouse, one end of the induced draft duct is connected to the air outlet chamber, the other end of the induced draft duct is connected to a built-in air outlet pipe, an activated carbon box for secondary absorption of ethylene is embedded in the middle section of the built-in air outlet pipe, one end of the built-in air outlet pipe away from the induced draft duct is connected to the second air cavity, the top of the pre-cooling chamber away from the built-in air outlet pipe is connected to a built-in exhaust duct, a bag of the built-in exhaust duct away from the pre-cooling chamber is connected to a connecting air duct, and the connecting air duct is used to guide the gas in the pre-cooling chamber to the cleaning and cooling component.

[0009] Preferably, the cleaning and cooling component includes an exhaust air chamber and an output water chamber opened inside the extension plate, the exhaust air chamber is located on the side of the output water chamber away from the warehouse, the bottom of the output water chamber is connected to an inclined water outlet, the end of the inclined water outlet away from the output water chamber is toward the top of the billboard, the bottom of the exhaust air chamber is connected to a plurality of air outlets, the end of the air outlet away from the exhaust air chamber is also toward the direction of the billboard, and the exhaust air chamber is connected to the connecting air duct.

[0010] Preferably, a transverse connecting pipe is opened inside the end of the warehouse away from the first door panel, and both ends of the transverse connecting pipe are respectively connected to the exhaust air cavities opened inside the two extension plates, and the end of the connecting air duct away from the built-in exhaust duct is connected to the transverse connecting pipe.

[0011] Preferably, grooves are provided on both sides of the top of the base, and the two grooves are respectively located below the two billboards. The two grooves are connected to rectangular tubes on one side close to the sink, and the two rectangular tubes are respectively connected to both sides of the top of the sink on the other side away from the two grooves. A filter net is fixedly connected inside the rectangular tube, and the filter net is used to filter the water in the grooves.

[0012] Preferably, a first water pump is fixedly connected to the inner bottom wall plate of the water tank, and the output end of the first water pump is connected to an electromagnetic three-way valve, which is a one-inlet and two-outlet three-way valve, whose input end is connected to the output end of the first water pump, and its two output ends are respectively connected to a U-shaped tube and a flushing mechanism, which is used to flush the first air cavity and the second air cavity, and the connecting point between the U-shaped tube and the electromagnetic three-way valve is located in the middle section of the U-shaped tube, and the two ends of the U-shaped tube are respectively connected to the two output water cavities.

[0013] Preferably, the flushing mechanism includes a transverse groove, which is connected to one of the output ends of the electromagnetic three-way valve. The transverse groove is opened in the inner bottom wall panel of the warehouse, and the transverse groove is located between the first air cavity and the second air cavity. Both sides of the transverse groove are respectively connected with multiple first nozzles and multiple second nozzles. The first nozzle is used to guide the water in the transverse groove into the first air cavity, and the second nozzle is used to guide the water in the transverse groove into the second air cavity. A second plate valve is provided at one end of the second air cavity away from the transverse groove, and a first plate valve is provided at one end of the first air cavity away from the transverse groove.

[0014] Preferably, a rectangular groove is provided at one end of the top of the base, a support is fixedly connected to the bottom of the evaporator, the support is fixedly connected in the rectangular groove, a second water pump is embedded in one end of the base, the input end of the second water pump is connected to the water tank, the output end of the second water pump is connected to a water outlet pipe, and the end of the water outlet pipe away from the second water pump faces the evaporator.

[0015] Preferably, a fan is fixedly connected to one end of the warehouse away from the first door panel, the output end of the fan is connected to an air inlet duct, the end of the air inlet duct away from the fan is connected to the first air cavity, and the connection point between the two is located at the top of one end of the first air cavity close to the first plate valve.

[0016] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention enables airflow to enter the second air cavity through the setting of the connecting component, and enter the precooling chamber through the air vents at the top of the second air cavity. Through the flow of airflow, part of the cold air in the storage chamber can be taken out. When apples are precooled in the precooling chamber, the cooling of the apples in the precooling chamber can be further accelerated by taking out the cold air in the storage chamber, which is conducive to shortening the time required for apple precooling. When the airflow blows on the apples in the precooling chamber, the ethylene emitted from the surface of the apples in the precooling chamber can also be blown upward to discharge the ethylene, thereby reducing the ethylene content of the apples in the precooling chamber. The airflow passing through the storage chamber and the precooling chamber can have a dual dispersing effect on ethylene, reduce the amount of ethylene emitted by the apples, and help avoid the situation where the apples mature quickly due to excessive ethylene emission. By extending the time for the apples to mature, the storage time of the apples can be increased.

[0017] 2. The present invention starts the second water pump, which draws water from the water tank and then flushes it on the evaporator through the water outlet pipe, which is beneficial to defrosting the evaporator and avoiding the reduction of working efficiency of the evaporator due to frosting.

[0018] 3. The present invention can reduce the loss of cold air in the storage room through the billboard by setting up the cleaning and cooling components, which is helpful to avoid the evaporator from working at a high load due to the large amount of heat loss in the storage room, and further avoid the evaporator from frosting due to high load. The airflow blown on the billboard by the air outlet nozzle can accelerate the evaporation of water, and evaporation absorbs heat, which can further reduce the temperature of the billboard, and further reduce the temperature difference between the storage room and the billboard. At the same time, the flow of air will also make the temperature around the warehouse cooler.

[0019] 4. The present invention adds water flow to the billboard. On the one hand, it can use the water flow to flush the billboard and reduce the dust on the billboard. On the other hand, by adding the effect of "flowing water" on the surface of the billboard, it can have an eye-catching effect, which is beneficial to improve the eye-catching degree of the billboard and improve the publicity effect of the billboard. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the overall structure of the present invention from another perspective; Figure 3 It is a schematic cross-sectional view of the structure of the storehouse of the present invention; Figure 4 For the present invention Figure 3 An enlarged schematic diagram of the structure of section A is shown; Figure 5 For the present invention Figure 3 An enlarged schematic diagram of the structure of part B is shown; Figure 6 It is a schematic cross-sectional view of the structure of the base of the present invention; Figure 7 For the present invention Figure 6 An enlarged schematic diagram of the C-section structure is shown; Figure 8 It is a schematic cross-sectional view of the structure of the air outlet chamber of the present invention; Fig. 9 For the present invention Figure 8 An enlarged schematic diagram of the D-section structure is shown; Fig.10 It is a schematic cross-sectional view of the structure of the U-shaped tube of the present invention.

[0021] In the figure: 1. warehouse; 2. base; 3. extension plate; 4. first door panel; 5. billboard; 6. U-shaped pipe; 7. groove; 8. fan; 9. evaporator; 10. second door panel; 11. pre-cooling chamber; 12. storage chamber; 13. air duct; 14. first water pump; 15. electromagnetic three-way valve; 16. filter screen; 17. second water pump; 18. first air cavity; 19. air inlet duct; 20. second air cavity; 21. second plate valve; 22. first plate valve; 23. water outlet pipe; 24. water tank; 25. horizontal groove; 26. first nozzle; 27. second nozzle; 28. activated carbon plate; 29. ​​air outlet chamber; 30. connecting air duct; 31. exhaust air cavity; 32. output water cavity; 33. built-in air outlet pipe; 34. built-in exhaust pipe; 35. activated carbon box; 36. horizontal connecting pipe. DETAILED DESCRIPTION

[0022] The following description is used to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are only examples, and those skilled in the art may think of other obvious variations.

[0023] like Figures 1 to 10 The ventilation and cooling device for apple storage shown in the figure comprises a warehouse 1 and a base 2. The warehouse 1 is fixedly connected to the top wall panel of the base 2. A pre-cooling chamber 11 and a storage chamber 12 are arranged inside the warehouse 1. A connecting component is arranged between the pre-cooling chamber 11 and the storage chamber 12. The connecting component is used to guide the gas in the storage chamber 12 to the pre-cooling chamber 11. Billboards 5 are fixedly connected to both sides of the warehouse 1. Extension plates 3 are fixedly connected to the top of both sides of the warehouse 1. Cleaning and cooling components are arranged on the extension plates 3. The cleaning and cooling components are used to clean the billboards 5. A water tank 24 is provided inside the base 2. The water tank 24 is used to supply water to the cleaning and cooling components. An evaporator 9 is arranged at one end of the top of the base 2. The water tank 24 is also used to clean frost on the evaporator 9.

[0024] In a specific implementation, a water inlet is provided on one side of the water tank 24, and the extension plate 3 can also provide a certain shade for both sides of the warehouse 1 and the billboard 5, which is helpful to avoid the glare of the billboard 5 caused by direct sunlight.

[0025] As a further embodiment of the present invention, a first door panel 4 is hinged at one end of the warehouse 1, and a second door panel 10 is also hinged inside the warehouse 1, the second door panel 10 is located between the pre-cooling chamber 11 and the storage chamber 12, a first air cavity 18 is opened in the bottom wall panel of the storage chamber 12, an air outlet chamber 29 is opened in the top wall panel of the storage chamber 12, an activated carbon plate 28 for absorbing ethylene emitted by apples is fixedly connected to the top wall panel of the air outlet chamber 29, a second air cavity 20 is opened in the bottom wall panel of the pre-cooling chamber 11, a plurality of air holes are opened on the top of the first air cavity 18 and the second air cavity 20, the air holes opened on the top of the first air cavity 18 and the second air cavity 20 are respectively connected to the storage chamber 12 and the pre-cooling chamber 11, a plurality of guide holes are connected at the bottom of the air outlet chamber 29, and the end of the guide hole away from the air outlet chamber 29 is connected to the storage chamber 12.

[0026] In a specific implementation, the first door panel 4 and the second door panel 10 are arranged to separate the warehouse 1 into a storage room 12 and a pre-cooling room 11, and the pre-cooling room 11 is isolated from the outside atmosphere at the end of the storage room 12, which is conducive to preventing the cold air in the storage room 12 from being lost through the second door panel 10. It should be noted that in the prior art, apples are usually stored at -1-0°C, which is much lower than normal temperature. Therefore, in the present invention, the gas flowing out of the storage room 12 is called cold air.

[0027] As a further embodiment of the present invention, the connecting component includes an induced draft duct 13, which is opened in the top wall panel of the warehouse 1, one end of the induced draft duct 13 is connected to the air outlet chamber 29, and the other end of the induced draft duct 13 is connected to a built-in air outlet pipe 33, and an activated carbon box 35 for secondary absorption of ethylene is embedded in the middle section of the built-in air outlet pipe 33, and one end of the built-in air outlet pipe 33 away from the induced draft duct 13 is connected to the second air cavity 20, and the top of the side of the pre-cooling chamber 11 away from the built-in air outlet pipe 33 is connected to a built-in exhaust duct 34, and the built-in exhaust duct 34 is connected to a bag of the pre-cooling chamber 11 with a connecting air duct 30, and the connecting air duct 30 is used to guide the gas in the pre-cooling chamber 11 to the cleaning and cooling component.

[0028] In a specific implementation, by setting up the connecting component, the cold air in the storage chamber 12 can be guided to the pre-cooling chamber 11, thereby achieving the purpose of pre-cooling the apples in the pre-cooling chamber 11.

[0029] As a further implementation scheme of the present invention, the cleaning and cooling component includes an exhaust air chamber 31 and an output water chamber 32 opened inside the extension plate 3. The exhaust air chamber 31 is located on the side of the output water chamber 32 away from the warehouse 1. The bottom of the output water chamber 32 is connected to an inclined water outlet. The end of the inclined water outlet away from the output water chamber 32 is toward the top of the billboard 5. The bottom of the exhaust air chamber 31 is connected to a plurality of air outlets. The end of the air outlet away from the exhaust air chamber 31 is also toward the direction of the billboard 5. The exhaust air chamber 31 is connected to the connecting air duct 30.

[0030] In a specific implementation, by setting up the cleaning and cooling components, the billboard 5 can be effectively cleaned, and the flow of water can also cool the billboard 5.

[0031] As a further implementation scheme of the present invention, a transverse connecting pipe 36 is opened inside the warehouse 1 at one end away from the first door panel 4, and the two ends of the transverse connecting pipe 36 are respectively connected to the exhaust air cavities 31 opened inside the two extension plates 3, and the end of the ventilation duct 30 away from the built-in exhaust duct 34 is connected to the transverse connecting pipe 36.

[0032] In a specific implementation, by providing the transverse connecting pipe 36 , the gas in the pre-cooling chamber 11 can be effectively guided to the exhaust air cavity 31 .

[0033] As a further implementation scheme of the present invention, grooves 7 are provided on both sides of the top of the base 2, and the two grooves 7 are respectively located below the two billboards 5. The two grooves 7 are connected to the water tank 24 on one side thereof, and the two rectangular tubes are connected to the two sides of the top of the water tank 24 on the other side thereof away from the two grooves 7. A filter net 16 is fixedly connected inside the rectangular tube, and the filter net 16 is used to filter the water in the groove 7.

[0034] In a specific implementation, the filter screen 16 is used to filter the water in the groove 7 , which helps to prevent impurities from entering the water tank 24 .

[0035] As a further implementation scheme of the present invention, a first water pump 14 is fixedly connected to the inner bottom wall plate of the water tank 24, and the output end of the first water pump 14 is connected to an electromagnetic three-way valve 15. The electromagnetic three-way valve 15 is a one-inlet and two-outlet three-way valve, and its input end is connected to the output end of the first water pump 14, and its two output ends are respectively connected to a U-shaped tube 6 and a flushing mechanism, which is used to flush the first air cavity 18 and the second air cavity 20. The connection point between the U-shaped tube 6 and the electromagnetic three-way valve 15 is located in the middle section of the U-shaped tube 6, and the two ends of the U-shaped tube 6 are respectively connected to the two output water cavities 32.

[0036] In a specific implementation, both ends of the horizontal ends of the U-shaped tube 6 are respectively embedded in the wall panels on both sides of the water tank 24, and the U-shaped tube 6 is fixedly connected to the base 2.

[0037] As a further embodiment of the present invention, the flushing mechanism includes a transverse groove 25, which is connected to one of the output ends of the electromagnetic three-way valve 15. The transverse groove 25 is opened in the inner bottom wall panel of the warehouse 1, and the transverse groove 25 is located between the first air chamber 18 and the second air chamber 20. Both sides of the transverse groove 25 are respectively connected with a plurality of first nozzles 26 and a plurality of second nozzles 27. The first nozzle 26 is used to guide the water in the transverse groove 25 into the first air chamber 18, and the second nozzle 27 is used to guide the water in the transverse groove 25 into the second air chamber 20. A second plate valve 21 is provided at one end of the second air chamber 20 away from the transverse groove 25, and a first plate valve 22 is provided at one end of the first air chamber 18 away from the transverse groove 25.

[0038] In a specific implementation, solenoid valves are provided inside the first nozzle 26 and the second nozzle 27. The solenoid valve inside the first nozzle 26 or the second nozzle 27 can be opened separately to flush and clean the first air cavity 18 or the second air cavity 20 separately. The solenoid valves in the first nozzle 26 and the second nozzle 27 can also be opened simultaneously to flush and clean the first air cavity 18 and the second air cavity 20 simultaneously. When there are fewer dust and impurities in the first air cavity 18 or the second air cavity 20, the solenoid valves in the first nozzle 26 and the second nozzle 27 can be opened simultaneously. When there are more dust and impurities in the first air cavity 18 or the second air cavity 20, the solenoid valves in the first nozzle 26 or the second nozzle 27 are opened separately to increase the impact force of water, thereby improving the cleaning ability of the water flow on the first air cavity 18 or the second air cavity 20.

[0039] As a further implementation scheme of the present invention, a rectangular groove is opened at one end of the top of the base 2, and a support is fixedly connected to the bottom of the evaporator 9, and the support is fixedly connected in the rectangular groove. A second water pump 17 is embedded in one end of the base 2, and the input end of the second water pump 17 is connected to the water tank 24, and the output end of the second water pump 17 is connected to the water outlet pipe 23, and the end of the water outlet pipe 23 away from the second water pump 17 faces the evaporator 9.

[0040] In a specific implementation, a built-in drainage guide groove is connected to one side of the bottom of the rectangular groove. The built-in drainage guide groove is opened inside the base 2. The end of the built-in drainage guide groove away from the rectangular groove is connected to one of the grooves 7. The built-in drainage guide groove is used to guide the water in the rectangular groove into the groove 7. The built-in drainage guide groove can be connected to any one of the two grooves 7.

[0041] As a further implementation scheme of the present invention, the end of the warehouse 1 away from the first door panel 4 is fixedly connected to the fan 8, the output end of the fan 8 is connected to the air inlet duct 19, the end of the air inlet duct 19 away from the fan 8 is connected to the first air cavity 18, and the connection point between the two is located at the top of one end of the first air cavity 18 close to the first plate valve 22.

[0042] In a specific implementation, the fan 8 is used to ventilate the storage room 12. It should be noted that, in the prior art, the ventilation work of the storage room 12 is usually performed when the external temperature is relatively low.

[0043] Working principle of the present invention: When the present invention is used, first, by placing the picked apples into a container for collecting apples, and then placing the apples into the precooling chamber 11 for precooling, it is helpful to reduce the breathing rate of the apples, and it is also helpful to reduce the refrigeration load in the storage chamber 12, thereby helping to avoid the evaporator 9 from working at a high load. When the evaporator 9 is working at a high load, especially when the outside temperature is low, the evaporator 9 will be frosted when working at a high load, affecting the normal operation of the evaporator 9, thereby reducing the refrigeration effect on the storage chamber 12 and affecting the storage quality of the apples. By precooling, the probability of frosting of the evaporator 9 can be reduced, and the quality of apple storage can be improved.

[0044] It should be noted that the evaporator 9 is a component used in the refrigeration system and is a very important component among the four major refrigeration components. The low-temperature condensed liquid passes through the evaporator 9 to exchange heat with the outside air, gasify and absorb heat, and achieve the refrigeration effect. Its connection with other refrigeration components is a prior art. The storage room 12 in the present invention is a cold storage, and the evaporator 9 is a type of refrigeration component of the cold storage. Other components of the refrigeration component are prior art and will not be disclosed in detail here. The container for holding apples is specifically a breathable basket.

[0045] After precooling the apples, the second door panel 10 is opened and the apples are then placed in the storage chamber 12. The storage chamber 12 is used to effectively store the apples. During the storage of the apples, the apples need to be ventilated on the one hand and effectively cooled on the other hand to prevent the apples from deteriorating due to respiration.

[0046] By turning on the fan 8, the fan 8 draws air from the outside atmosphere, and then enters the first air cavity 18 through the air inlet duct 19. After the airflow enters the first air cavity 18, it will be blown into the storage chamber 12 through the air vents opened at the top of the first air cavity 18, so as to ventilate the storage chamber 12. Secondly, the flow of airflow can also promote the temperature of each position in the storage chamber 12 to tend to balance. The airflow flows from bottom to top. When the airflow blows through the container containing apples, it will blow on the apples inside. Through the flow of airflow, the ethylene emitted from the surface of the apples can also be blown upward. Since the relative mass of ethylene is lower than that of air, ethylene has a tendency to float upward. Through the flow of airflow, the upward flow of ethylene can be further promoted, thereby reducing the residence time of ethylene in the storage chamber 12, which is conducive to preventing the apples in the storage chamber 12 from being ripened by ethylene and then quickly deteriorating. It plays a certain role in promoting the storage of apples, so that the apples can be stored for a longer time.

[0047] As the airflow flows, the gas in the storage chamber 12 will enter the air outlet chamber 29 through the guide hole at the bottom of the air outlet chamber 29, and the ethylene will be collected by the activated carbon plate 28 set at the top of the air outlet chamber 29 to reduce the ethylene content in the airflow. The airflow then enters the built-in air outlet pipe 33 through the air duct 13, and then is filtered twice by the activated carbon box 35 to further absorb and filter the ethylene in the airflow, which is conducive to further reducing the ethylene content in the airflow. Finally, the airflow enters the second air cavity 20, and enters the precooling chamber 11 through the air vents at the top of the second air cavity 20. Through the flow of airflow, part of the cold air in the storage chamber 12 can be taken out. When there are apples in the precooling chamber 11 for precooling, by taking out the cold air in the storage chamber 12, the cooling of the apples in the precooling chamber 11 can be further accelerated, which is conducive to shortening the time required for apple precooling.

[0048] In addition, the airflow also flows from bottom to top in the precooling chamber 11. When the airflow blows on the apples in the precooling chamber 11, the ethylene emitted from the surface of the apples in the precooling chamber 11 can be blown upward, thereby reducing the ethylene content of the apples in the precooling chamber 11. The airflow passing through the storage chamber 12 and the precooling chamber 11 can have a double dispersing effect on ethylene, thereby reducing the amount of ethylene emitted by the apples, thereby preventing the apples from ripening quickly due to excessive ethylene emission, thereby extending the storage time of the apples by extending the ripening time of the apples.

[0049] After passing through the pre-cooling chamber 11, the airflow will enter the connecting air duct 30 through the built-in exhaust duct 34 at the top of the pre-cooling chamber 11, then enter the horizontal connecting pipe 36 through the connecting air duct 30, and then enter the exhaust air cavity 31, and finally blow on the billboard 5 through the air outlet nozzle at the bottom of the exhaust air cavity 31. Through the setting of the billboard 5, relevant promotional advertisements about apples can be printed on the billboard 5. When customers go to the location of the warehouse 1, the billboard 5 can be used to introduce the apples, which is conducive to customers to understand the apples in the warehouse 1 simply and clearly. For apples in multiple warehouses 1, the specific model and quality size of the apples stored in the warehouse 1 can also be marked on the billboard 5, which is conducive to directly classifying the apples in the warehouse 1.

[0050] When apples are marked or introduced by means of the billboard 5 , there is a certain risk of dust falling on the billboard 5 . By blowing air onto the billboard 5 through the air outlet nozzle, the dust on the billboard 5 can be blown off to a certain extent, which helps to avoid dust falling on the billboard 5 . By respectively arranging the billboards 5 on both sides of the warehouse 1 , the billboards 5 can be blocked on both sides of the warehouse 1 , which helps to avoid the cold air in the storage room 12 inside the warehouse 1 from leaking through the two sides of the warehouse 1 , thereby having a certain cooling effect on the storage room 12 .

[0051] By setting the first water pump 14, firstly, the first water pump 14 is connected to the U-shaped tube 6 through the electromagnetic three-way valve 15, and then the first water pump 14 is started, and water is drawn from the water tank 24 by the first water pump 14, and then transported to the U-shaped tube 6, and then the water is transported to the two output water chambers 32 through the guidance of the U-shaped tube 6, and then flushed on the billboard 5 through the inclined water outlet at the bottom of the output water chamber 32. By adding water flow to the billboard 5, on the one hand, the water flow can be used to flush the billboard 5 and reduce the dust on the billboard 5. On the other hand, by adding the "flowing water" effect on the surface of the billboard 5, it can play an eye-catching effect, which is conducive to improving the eye-catching degree of the billboard 5 and improving the publicity effect of the billboard 5.

[0052] Secondly, the flow of water can also cool the billboard 5, which is conducive to reducing the temperature of the billboard 5, thereby reducing the temperature difference between the billboard 5 and the storage room 12, and preventing the loss of cold air in the storage room 12 due to the large temperature difference between the billboard 5 and the storage room 12. By reducing the loss of cold air in the storage room 12, it is conducive to preventing the evaporator 9 from working at a high load due to the large loss of heat in the storage room 12, thereby preventing the evaporator 9 from frosting due to high-load work. The airflow blown on the billboard 5 by the air outlet nozzle can accelerate the evaporation of the water flow, and evaporation absorbs heat, which can further reduce the temperature of the billboard 5, thereby further reducing the temperature difference between the storage room 12 and the billboard 5. At the same time, the flow of air will also make the temperature around the warehouse 1 cooler.

[0053] After the water flows over the billboard 5, it will fall into the groove 7, and then flow back to the water tank 24 through the filter screen 16 at the bottom side of the groove 7. The circulation of water is helpful to ensure the oxygen content in the water, and the flowing water can prevent the water in the water tank 24 from becoming smelly, which is helpful to ensure the quality of the water in the water tank 24.

[0054] When frost occurs on the evaporator 9, the second water pump 17 is turned on. After the second water pump 17 is turned on, water is drawn from the water tank 24, and then flushed on the evaporator 9 through the water outlet pipe 23, which is conducive to defrosting the evaporator 9 and avoiding the situation where the working efficiency of the evaporator 9 is reduced due to frosting. The water flowing out of the water outlet pipe 23 will fall into the rectangular groove after flushing on the evaporator 9, and then flow back to one of the grooves 7 through the built-in drainage guide groove set at the bottom of the rectangular groove, and finally flow back to the water tank 24 through the filter screen 16.

[0055] As the storage time of apples goes by, impurities or dust will fall into the first air chamber 18 and the second air chamber 20. At this time, the output end of the first water pump 14 is connected to the transverse groove 25 through the electromagnetic three-way valve 15, and then the first plate valve 22 and the second plate valve 21 are opened. By opening the first water pump 14, the first water pump 14 supplies water to the transverse groove 25. After the water flows into the transverse groove 25, it will flow out through the first nozzle 26 and the second nozzle 27, thereby flushing the first air chamber 18 and the second air chamber 20, and then discharged through the first plate valve 22 and the second plate valve 21.

[0056] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments, and the above embodiments and descriptions only describe the principles of the present invention. The present invention may be subject to various changes and improvements without departing from the spirit and scope of the present invention, and these changes and improvements fall within the scope of the present invention claimed.

Claims

1. A ventilation and cooling device for apple storage, comprising a storehouse (1) and a base (2), wherein the storehouse (1) is fixedly connected to a top wall plate of the base (2), and is characterized in that: The warehouse (1) is provided with a precooling chamber (11) and a storage chamber (12) inside. A connecting component is provided between the precooling chamber (11) and the storage chamber (12). The connecting component is used to guide the gas in the storage chamber (12) into the precooling chamber (11). Billboards (5) are fixedly connected to both sides of the warehouse (1). Extension plates (3) are fixedly connected to the tops of both sides of the warehouse (1). A cleaning and cooling component is provided on the extension plates (3). The cleaning and cooling component is used to clean the billboards (5). A water tank (24) is provided inside the base (2). The water tank (24) is used to supply water to the cleaning and cooling component. An evaporator (9) is provided at one end of the top of the base (2). The water tank (24) is also used to clean frost on the evaporator (9).

2. The ventilation and cooling device for apple storage according to claim 1, characterized in that: A first door panel (4) is hingedly connected to one end of the warehouse (1), and a second door panel (10) is hingedly connected inside the warehouse (1). The second door panel (10) is located between the pre-cooling chamber (11) and the storage chamber (12). A first air cavity (18) is provided in the bottom wall panel of the storage chamber (12), and an air outlet chamber (29) is provided in the top wall panel of the storage chamber (12). An active agent for absorbing ethylene emitted by apples is fixedly connected to the top wall panel of the air outlet chamber (29). A carbon plate (28), a second air cavity (20) is provided in the bottom wall plate of the precooling chamber (11), a plurality of air holes are provided at the top of the first air cavity (18) and the second air cavity (20), the air holes provided at the top of the first air cavity (18) and the second air cavity (20) are respectively connected to the storage chamber (12) and the precooling chamber (11), a plurality of guide holes are provided at the bottom of the air outlet chamber (29), and one end of the guide holes away from the air outlet chamber (29) is connected to the storage chamber (12).

3. The ventilation and cooling device for apple storage according to claim 2, characterized in that: The connecting component comprises an air induced draft duct (13), the air induced draft duct (13) being arranged in a top wall plate of the storehouse (1), one end of the air induced draft duct (13) being connected to an air outlet chamber (29), the other end of the air induced draft duct (13) being connected to a built-in air outlet pipe (33), an activated carbon box (35) for secondary absorption of ethylene being embedded in the middle section of the built-in air outlet pipe (33), one end of the built-in air outlet pipe (33) away from the air induced draft duct (13) being connected to a second air cavity (20), a top of a side of the precooling chamber (11) away from the built-in air outlet pipe (33) being connected to a built-in exhaust pipe (34), a side of the built-in exhaust pipe (34) away from the precooling chamber (11) being connected to a connecting air pipe (30), the connecting air pipe (30) being used to guide the gas in the precooling chamber (11) to the cleaning and cooling component.

4. The ventilation and cooling device for apple storage according to claim 3, characterized in that: The cleaning and cooling component comprises an exhaust air chamber (31) and an output water chamber (32) which are arranged inside the extension plate (3); the exhaust air chamber (31) is located on a side of the output water chamber (32) away from the storehouse (1); the bottom of the output water chamber (32) is connected to an inclined water outlet; one end of the inclined water outlet away from the output water chamber (32) faces the top of the billboard (5); the bottom of the exhaust air chamber (31) is connected to a plurality of air outlets; one end of the air outlet away from the exhaust air chamber (31) also faces the direction of the billboard (5); and the exhaust air chamber (31) is connected to a connecting air duct (30).

5. The ventilation and cooling device for apple storage according to claim 4, characterized in that: A transverse connecting pipe (36) is provided inside the warehouse (1) at one end away from the first door panel (4), and both ends of the transverse connecting pipe (36) are respectively connected to exhaust air cavities (31) provided inside the two extension panels (3), and an end of the connecting air duct (30) away from the built-in exhaust air duct (34) is connected to the transverse connecting pipe (36).

6. The ventilation and cooling device for apple storage according to claim 4, characterized in that: Grooves (7) are provided on both sides of the top of the base (2), the two grooves (7) being located respectively below the two billboards (5), the two grooves (7) being connected to rectangular tubes on the sides close to the water tank (24), the two rectangular tubes being connected to both sides of the top of the water tank (24) on the sides away from the two grooves (7), and the rectangular tubes being fixedly connected to filter screens (16) for filtering water in the grooves (7).

7. The ventilation and cooling device for apple storage according to claim 6, characterized in that: A first water pump (14) is fixedly connected to the inner bottom wall plate of the water tank (24); the output end of the first water pump (14) is connected to an electromagnetic three-way valve (15); the electromagnetic three-way valve (15) is a one-inlet-two-outlet three-way valve; its input end is connected to the output end of the first water pump (14); its two output ends are respectively connected to a U-shaped tube (6) and a flushing mechanism; the flushing mechanism is used to flush the first air cavity (18) and the second air cavity (20); the connection point between the U-shaped tube (6) and the electromagnetic three-way valve (15) is located in the middle section of the U-shaped tube (6); and the two ends of the U-shaped tube (6) are respectively connected to the two output water cavities (32).

8. The ventilation and cooling device for apple storage according to claim 7, characterized in that: The flushing mechanism comprises a transverse groove (25), the transverse groove (25) being connected to one of the output ends of the electromagnetic three-way valve (15), the transverse groove (25) being provided in the inner bottom wall plate of the storehouse (1), and the transverse groove (25) being located between the first air cavity (18) and the second air cavity (20), a plurality of first nozzles (26) and a plurality of second nozzles (27) being respectively connected to the two sides of the transverse groove (25), the first nozzles (26) being used to guide water in the transverse groove (25) into the first air cavity (18), the second nozzles (27) being used to guide water in the transverse groove (25) into the second air cavity (20), a second plate valve (21) being provided at one end of the second air cavity (20) away from the transverse groove (25), and a first plate valve (22) being provided at one end of the first air cavity (18) away from the transverse groove (25).

9. The ventilation and cooling device for apple storage according to claim 8, characterized in that: A rectangular groove is formed at one end of the top of the base (2); a support is fixedly connected to the bottom of the evaporator (9); the support is fixedly connected in the rectangular groove; a second water pump (17) is embedded in one end of the base (2); an input end of the second water pump (17) is connected to the water tank (24); an output end of the second water pump (17) is connected to a water outlet pipe (23); an end of the water outlet pipe (23) away from the second water pump (17) faces the evaporator (9).

10. The ventilation and cooling device for apple storage according to claim 9, characterized in that: The end of the storehouse (1) away from the first door panel (4) is fixedly connected to a fan (8), the output end of the fan (8) is connected to an air inlet duct (19), the end of the air inlet duct (19) away from the fan (8) is connected to the first air cavity (18), and the connection point between the two is located at the top of one end of the first air cavity (18) close to the first plate valve (22).

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