Energy-saving grain cooling machine

Abstract

The utility model relates to the technical field of grain cooling machines, and discloses an energy-saving grain cooling machine which comprises a cabinet body, a filtering bin, an adsorption bin, a demisting bin and a cooling bin are arranged in the cabinet body, an air inlet pipe is arranged on one side of the cabinet body, a filtering block is detachably installed in the filtering bin, and the air inlet pipe is connected with the adsorption bin. The energy-saving grain cooling machine comprises an adsorption bin, a filtering bin is arranged in the adsorption bin, one side of the filtering bin is fixedly connected with a communicating pipe, the communicating pipe extends into the bottom of the adsorption bin, a dehumidification solution is added into the adsorption bin, and a conveying pipe is arranged at the top of the adsorption bin. A filtering block in the filtering bin can filter air sucked into the filtering bin, so that impurities finally entering the granary are reduced, the cleanliness of the air is improved, and through cooperative arrangement of the adsorption bin and the demisting bin, a dehumidification solution can be added into the adsorption bin, so that water vapor in the air is removed, and the air is kept dry.

Description

Technical Field

[0001] This utility model relates to the field of grain cooler technology, and specifically to an energy-saving grain cooler. Background Technology

[0002] Grains are susceptible to environmental temperature and humidity fluctuations during storage, leading to heat generation, mold, pest infestation, and quality deterioration. To effectively extend the shelf life of grains and maintain their freshness and nutritional value, controlling the temperature and humidity of the storage environment is crucial. Grain coolers, as an important temperature-controlled grain storage device, work by introducing treated (cooled and dehumidified) outside air into the grain pile, removing the respiration heat and accumulated heat from the grains, thereby lowering the temperature of the grain pile and controlling humidity. This allows for safe storage of grains in a lower, drier state. Compared to traditional chemical fumigation or mechanical ventilation, grain cooling technology has significant advantages such as environmental friendliness, safety, and superior preservation effects, and is widely used in modern grain depots.

[0003] However, existing grain coolers have certain shortcomings in use. Firstly, the air cleanliness is insufficient: when the equipment draws in outside air for cooling, it often lacks an efficient gas purification process. Impurities such as suspended dust, microbial spores, and insect eggs in the air not only contaminate the grain after entering the grain silo, but may also become a source of mold and pests, affecting the hygiene and safety of stored grain. Secondly, the dehumidification effect is insufficient in high humidity conditions. After cooling and dehumidification, the air often still contains a certain amount of misty water vapor. This water vapor can breed mold, which is not conducive to grain storage. Therefore, a device is needed to solve the above problems. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides an energy-saving grain cooler that solves the problems of insufficient air cleanliness and limited dehumidification effect when humidity is high in existing grain coolers.

[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: an energy-saving grain cooler, including a cabinet, wherein the cabinet has a filter chamber, an adsorption chamber, a demisting chamber and a cooling chamber inside, and an air inlet pipe is provided on one side of the cabinet;

[0006] The filter chamber has a detachable filter block installed inside. A connecting pipe is fixedly connected to one side of the filter chamber, and the connecting pipe extends into the bottom of the adsorption chamber. A dehumidifying solution is added inside the adsorption chamber. A conveying pipe is provided at the top of the adsorption chamber. The adsorption chamber is connected to the interior of the demisting chamber through the conveying pipe. A demister is fixedly installed inside the demisting chamber to remove mixed mist in the air. The top of the demisting chamber is connected to the interior of the cooling chamber. An evaporator is detachably installed inside the cooling chamber to cool the air.

[0007] The top of the cabinet is equipped with an exhaust pipe that connects to the cooling chamber to introduce the treated air into the grain silo.

[0008] Optionally, the front of the air inlet duct is detachably connected to a mounting frame via a snap-fit ​​mechanism, and a filter screen is fixedly connected inside the mounting frame for preliminary air filtration.

[0009] Optionally, the snap-fit ​​mechanism includes an L-shaped groove and a buckle. The L-shaped groove is formed on the outer surface of the air inlet pipe, and the buckle is fixedly connected to the inner wall of the mounting frame. The buckle is adapted to the L-shaped groove, and a fixing bolt is threadedly connected to the top of the air inlet pipe. The fixing bolt is threadedly connected to the air inlet pipe and passes through the top of the mounting frame.

[0010] Optionally, the interior of the filter chamber is fixedly connected to a plurality of air guide plates at intervals on one side of the air inlet pipe. A channel for air circulation is formed between adjacent air guide plates and between the air guide plates and the inner wall of the filter chamber. The air guide plates are inclined to guide the airflow.

[0011] Optionally, the front of the cabinet is fixedly connected to an inlet pipe and an outlet pipe, both of which are connected to the interior of the adsorption chamber and are used to input and discharge the dehumidification solution, respectively.

[0012] Optionally, a water distribution plate is fixedly connected to one end of the liquid inlet pipe inside the adsorption chamber, and multiple nozzles are fixedly connected to the bottom of the water distribution plate to increase the contact area with air.

[0013] Optionally, one end of the conveying pipe extends upward and is T-shaped to prevent water in the demisting chamber from flowing back into the conveying pipe. A drain pipe is provided on one side of the demisting chamber to drain the water separated in the demisting chamber. The drain pipe is U-shaped to form a water seal to prevent air from entering the drain pipe.

[0014] Optionally, both the connecting pipe and the conveying pipe are equipped with a one-way valve to restrict the airflow and prevent backflow.

[0015] This utility model provides an energy-saving grain cooler, which has the following beneficial effects:

[0016] This invention provides an energy-saving grain cooler. An internal filter chamber filters the incoming air, reducing impurities and improving air cleanliness. An adsorption chamber and a demisting chamber work together. The adsorption chamber can contain a dehumidifying solution, which, compared to refrigeration dehumidification, more effectively removes moisture from the air, keeping it dry and offering higher energy efficiency. The demisting chamber further separates mist-like moisture from the air, reducing water vapor entering the grain silo. A cooling chamber and an evaporator work together; as air passes through the evaporator, the evaporator absorbs heat, lowering the air temperature. Combined with multiple front-mounted chambers, the air enters the grain silo in a low-temperature, dry state, extending the grain's shelf life. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This is a front cross-sectional view of the present invention.

[0019] Figure 3 This is a schematic diagram of the air inlet pipe of this utility model.

[0020] In the diagram: 1. Cabinet; 2. Filter chamber; 3. Adsorption chamber; 4. Demisting chamber; 5. Cooling chamber; 6. Air inlet duct; 7. Filter block; 8. Connecting pipe; 9. Delivery pipe; 10. Demister; 11. Evaporator; 12. Exhaust duct; 13. Mounting frame; 14. Filter screen; 15. L-shaped groove; 16. Clip; 17. Fixing bolt; 18. Air guide plate; 19. Liquid inlet pipe; 20. Liquid outlet pipe; 21. Water distribution plate; 22. Nozzle; 23. Drain pipe; 24. One-way valve. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0022] Please see Figures 1 to 3 This utility model provides a technical solution: an energy-saving grain cooler, including a cabinet 1, the cabinet 1 having a filter chamber 2, an adsorption chamber 3, a demisting chamber 4, and a cooling chamber 5 inside, and an air inlet pipe 6 on one side of the cabinet 1.

[0023] The filter chamber 2 has a detachable filter block 7 installed inside. A connecting pipe 8 is fixedly connected to one side of the filter chamber 2. The connecting pipe 8 extends into the bottom of the adsorption chamber 3. A dehumidifying solution is added inside the adsorption chamber 3. A conveying pipe 9 is provided at the top of the adsorption chamber 3. The adsorption chamber 3 is connected to the interior of the demisting chamber 4 through the conveying pipe 9. A demister 10 is fixedly installed inside the demisting chamber 4 to remove mixed mist in the air. The top of the demisting chamber 4 is connected to the interior of the cooling chamber 5. An evaporator 11 is detachably installed inside the cooling chamber 5 to cool the air.

[0024] The top of the cabinet 1 is provided with an exhaust pipe 12 that communicates with the cooling chamber 5 to introduce the treated air into the grain silo.

[0025] The air inlet duct 6 is connected to an external air extraction device, which draws outside air into the air inlet duct 6. The air entering the air inlet duct 6 passes sequentially through the filter chamber 2, adsorption chamber 3, demisting chamber 4, and cooling chamber 5. After being processed by multiple chambers, it is discharged from the top exhaust duct 12 to the next air handling unit or directly into the grain silo. The filter block 7 is composed of multiple materials to improve the filtration effect. The filtered air enters the adsorption chamber 3 along the connecting pipe 8. The connecting pipe 8 is immersed in the dehumidifying solution within the adsorption chamber 3, and the openings on the connecting pipe 8 gradually increase in size. Air flows from the connecting pipe 8... The solution is directly introduced into the air, and after being dehumidified by the dehumidifying solution, it enters the demisting chamber 4 through the top conveying pipe 9. The demisting chamber 4 separates the mist-like water vapor mixed in the air. After separation, it continues to move to the top, and after being cooled by the evaporator 11, it is discharged from the top exhaust pipe 12. The demister 10 is a commonly used structure. The principle of the demister 10 can be derived from publicly available information. At the same time, the demister 10 with patent number 201921820340.3 can also be used. The structure of the demister 10 will not be described in detail here. Evaporators are also commonly installed in air conditioning and other equipment, and will not be described in detail here either.

[0026] In this embodiment, as a preferred option, the front of the air inlet pipe 6 is detachably connected to the mounting frame 13 via a snap-fit ​​mechanism. The inside of the mounting frame 13 is fixedly connected to a filter screen 14 for preliminary air filtration. The snap-fit ​​mechanism includes an L-shaped groove 15 and a buckle 16. The L-shaped groove 15 is formed on the outer surface of the air inlet pipe 6, and the buckle 16 is fixedly connected to the inner wall of the mounting frame 13. The buckle 16 is adapted to the L-shaped groove 15. The top of the air inlet pipe 6 is threadedly connected to a fixing bolt 17. The fixing bolt 17 is threadedly connected to the air inlet pipe 6 and passes through the top of the mounting frame 13. The inside of the filter chamber 2 is located on one side of the air inlet pipe 6 and is fixedly connected to multiple air guide plates 18 at intervals. A channel for air circulation is formed between adjacent air guide plates 18 and between the air guide plates 18 and the inner wall of the filter chamber 2. The air guide plates 18 are set at an angle to guide the airflow.

[0027] The mounting frame 13 can be engaged with the L-shaped groove 15 via the buckle 16 on the inner wall. After inserting the buckle 16 from one side of the L-shaped groove 15 and rotating it, the mounting frame 13 and the air inlet pipe 6 can be initially spliced ​​together. At this time, the holes on the top of the two will be aligned. The mounting frame 13 and the air inlet pipe 6 can be fixed in position using the fixing bolt 17 to prevent accidental rotation. The filter screen 14 on the mounting frame 13 initially blocks the air and prevents large particles of debris from entering the cabinet 1. When cleaning, the mounting frame 13 can be directly removed from the air inlet pipe 6 for cleaning. After the air enters from the air inlet pipe 6, it will be separated by multiple air guide plates 18 so that the air can pass through the filter block 7 above more evenly.

[0028] In this embodiment, as a preferred option, an inlet pipe 19 and an outlet pipe 20 are fixedly connected to the front of the cabinet 1. Both the inlet pipe 19 and the outlet pipe 20 are connected to the interior of the adsorption chamber 3 and are used to input and discharge the dehumidification solution, respectively. A water distribution plate 21 is fixedly connected to one end of the inlet pipe 19 inside the adsorption chamber 3. Multiple nozzles 22 are fixedly connected to the bottom of the water distribution plate 21 to increase the contact area with air.

[0029] The inlet pipe 19 introduces the dehumidifying solution into the adsorption chamber 3. The solution is then distributed across multiple nozzles 22 via the water distribution plate 21 and sprayed out from the nozzles 22 to dehumidify the air. The dehumidifying solution can be calcium chloride, lithium chloride, lithium bromide, etc. Simultaneously, the inner wall of the adsorption chamber 3, the inlet pipe 19, the outlet pipe 20, and the water distribution plate 21 are all coated with an anti-corrosion coating to slow down the corrosion of the device by the dehumidifying solution. Corrosion inhibitors can also be added to the solution to further slow down the corrosion rate of the pipes. After absorbing moisture, the solution drains out from the bottom outlet pipe 20. The solution flows into the circulation device, where it is heated or evacuated to evaporate the water and increase its concentration. The solution then flows back into the adsorption chamber 3 through the inlet pipe 19, adsorbs air, and flows back into the circulation device through the outlet pipe 20. This cycle repeats continuously. How the solution recovers its absorbency after dehumidification is existing technology and will not be elaborated here. The solution level in the adsorption chamber 3 is always higher than the bottom of the connecting pipe 8 to ensure that the connecting pipe 8 is submerged in the dehumidification solution.

[0030] In this embodiment, as a preferred option, one end of the conveying pipe 9 extends upward and is T-shaped to prevent water in the demisting chamber 4 from flowing back into the conveying pipe 9. A drain pipe 23 is provided on one side of the demisting chamber 4 to drain the water separated in the demisting chamber 4. The drain pipe 23 is U-shaped to form a water seal to prevent air from entering the drain pipe 23.

[0031] The T-shaped structure at one end of the delivery pipe 9 can prevent backflow. After the misty water vapor comes into contact with the demister 10, it will condense into water droplets and fall off the demister 10. Then it will flow into the drain pipe 23 on one side. The drain pipe 23 forms a water seal to prevent air from escaping from the drain pipe 23, and only the accumulated water can be discharged.

[0032] In this embodiment, as a preferred option, both the connecting pipe 8 and the conveying pipe 9 are equipped with a one-way valve 24 to restrict the airflow and prevent backflow.

[0033] In this invention, the working steps of the device are as follows:

[0034] 1. Attach the mounting frame 13 to the air inlet pipe 6 and fix the mounting frame 13 with bolts. After fixing, connect the air inlet pipe 6 and the exhaust pipe 12 to the front-end equipment and the back-end equipment respectively. Then connect the liquid inlet pipe 19 and the liquid outlet pipe 20 to the dehumidification solution circulation equipment so that the dehumidification solution can be directly sprayed into the adsorption chamber 3.

[0035] 2. Connect the drain pipe 23 at one end of the demisting chamber 4 to the downstream equipment to collect or otherwise treat the water separated from the demisting chamber 4;

[0036] 3. After a period of use, remove the mounting frame 13, clean the filter screen 14 on the mounting frame 13, and remove the filter block 7 from the filter chamber 2 and replace the filter block 7.

[0037] The specific embodiments provided by this utility model have been described in detail above. Specific examples have been used to illustrate the principle and implementation of this utility model. The description of the above embodiments is only for the purpose of helping to understand the method and core idea of ​​this utility model. At the same time, for those skilled in the art, there will be changes in the specific implementation and application scope based on the idea of ​​this utility model. Therefore, the content of this specification should not be construed as a limitation of this utility model.

Claims

1. An energy-saving grain cooler, characterized in that: Includes a cabinet (1), inside which are provided a filter chamber (2), an adsorption chamber (3), a demisting chamber (4) and a cooling chamber (5), and on one side of the cabinet (1) is an air inlet pipe (6); The filter chamber (2) is detachably equipped with a filter block (7). A connecting pipe (8) is fixedly connected to one side of the filter chamber (2). The connecting pipe (8) extends into the bottom of the adsorption chamber (3). A dehumidifying solution is added inside the adsorption chamber (3). A conveying pipe (9) is provided at the top of the adsorption chamber (3). The adsorption chamber (3) is connected to the interior of the demisting chamber (4) through the conveying pipe (9). A demister (10) is fixedly installed inside the demisting chamber (4) to remove mixed mist in the air. The top of the demisting chamber (4) is connected to the interior of the cooling chamber (5). An evaporator (11) is detachably installed inside the cooling chamber (5) to cool the air. The top of the cabinet (1) is provided with an exhaust pipe (12) that communicates with the cooling chamber (5) to introduce the treated air into the grain warehouse.

2. The energy-saving grain cooler according to claim 1, characterized in that: The front of the air inlet pipe (6) is detachably connected to a mounting frame (13) via a snap-fit ​​mechanism. A filter screen (14) is fixedly connected inside the mounting frame (13) for preliminary air filtration.

3. The energy-saving grain cooler according to claim 2, characterized in that: The snap-fit ​​mechanism includes an L-shaped groove (15) and a buckle (16). The L-shaped groove (15) is opened on the outer surface of the air inlet pipe (6). The buckle (16) is fixedly connected to the inner wall of the mounting frame (13). The buckle (16) is adapted to the L-shaped groove (15). The top of the air inlet pipe (6) is threaded with a fixing bolt (17). The fixing bolt (17) is threadedly connected to the air inlet pipe (6) and passes through the top of the mounting frame (13).

4. An energy-saving grain cooler according to claim 3, characterized in that: The filter chamber (2) is located on one side of the air inlet pipe (6) and is fixedly connected to multiple air guide plates (18) at intervals. A channel for air circulation is formed between adjacent air guide plates (18) and between the air guide plates (18) and the inner wall of the filter chamber (2). The air guide plates (18) are set in an inclined shape to guide the air flow.

5. An energy-saving grain cooler according to any one of claims 1-4, characterized in that: The front of the cabinet (1) is fixedly connected to an inlet pipe (19) and an outlet pipe (20). The inlet pipe (19) and the outlet pipe (20) are both connected to the interior of the adsorption chamber (3) and are used to input and discharge the dehumidification solution, respectively.

6. An energy-saving grain cooler according to claim 5, characterized in that: The liquid inlet pipe (19) is fixedly connected to a water distribution plate (21) at one end inside the adsorption chamber (3). Multiple nozzles (22) are fixedly connected to the bottom of the water distribution plate (21) to increase the contact area with air.

7. An energy-saving grain cooler according to any one of claims 1-4, characterized in that: One end of the conveying pipe (9) extends upward and is T-shaped to prevent water in the demisting chamber (4) from flowing back into the conveying pipe (9). A drain pipe (23) is provided on one side of the demisting chamber (4) to drain the water separated in the demisting chamber (4). The drain pipe (23) is U-shaped to form a water seal to prevent air from entering the drain pipe (23).

8. An energy-saving grain cooler according to any one of claims 1-4, characterized in that: Both the connecting pipe (8) and the conveying pipe (9) are equipped with one-way valves (24) to restrict the airflow and prevent backflow.

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