A modified atmosphere container humidifier
By introducing a coarse filter screen and filter cartridge combination filtration system and a detachable mounting frame structure into the humidifier of the controlled atmosphere container, the problem of pipe blockage caused by water backflow was solved, and the normal operation of the humidifier and the humidity regulation of the container were realized.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUANGDONG XIANRUN ECOLOGICAL AGRI TECH CO LTD
- Filing Date
- 2025-08-07
- Publication Date
- 2026-05-26
Smart Images

Figure CN224278380U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of humidifier technology, specifically a modified atmosphere container humidifier. Background Technology
[0002] Modified atmosphere containers are containers specifically designed for cargo transportation and preservation. By adjusting parameters such as gas composition, temperature, and humidity inside the container, they extend the shelf life of goods, thereby reducing losses during transportation and storage. They are widely used in industries such as food, flowers, and pharmaceuticals.
[0003] Controlled atmosphere containers are typically equipped with wet film humidifiers to regulate the humidity inside the container and prevent the goods from drying out. The wet film humidifier uses a pump to deliver water to the wet film and form a uniform water film. Excess water flows back into the water tank, thus achieving resource reuse. However, when the water comes into contact with the wet film, impurities and foreign objects can easily mix in. When the water is transported back using a return pump, it can easily cause pipe blockage and affect the normal operation of the pump. Utility Model Content
[0004] The purpose of this invention is to provide a humidifier for a modified atmosphere container to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a modified atmosphere container humidifier, comprising an outer shell, a water tank disposed on the bottom side of the inner side of the outer shell, guide rails symmetrically disposed on both sides of the inner wall of the water tank, a mounting frame slidably connected inside the guide rails, a sealing gasket disposed between the mounting frame and the guide rails, a coarse filter screen disposed on the top of the mounting frame, a filter element disposed on the bottom of the mounting frame, a handle fixedly connected to one side of the mounting frame, and two positioning grooves symmetrically disposed on the side of the mounting frame near the handle.
[0006] As a further preferred embodiment of this technical solution, two connecting rods are symmetrically arranged on the side of the outer casing near the handle. A rotating plate is rotatably connected to the surface of the connecting rods. A positioning plate is fixedly connected to the side of the rotating plate near the outer casing. The positioning plate is engaged in the positioning groove. A return spring is provided between the rotating plate and the connecting rods.
[0007] As a further preferred embodiment of this technical solution, a wet film body is fixedly connected to one side of the top of the water tank, a connecting frame is fixedly connected to the top of the wet film body, and a water distributor is provided inside the connecting frame.
[0008] As a further preferred embodiment of this technical solution, a reflux pump is fixedly connected to the bottom inside the outer casing, a reflux pipe is fixedly connected between the reflux pump and the water tank, and a water inlet pipe is fixedly connected between the reflux pump and the water distributor.
[0009] As a further preferred embodiment of this technical solution, a fan is fixedly connected to one side of the inner wall of the outer casing, and an air guide plate and a partition are fixedly connected to the inner wall of the outer casing, with the partition in contact with the connecting frame.
[0010] As a further preferred embodiment of this technical solution, an air outlet is provided on the top front of the outer casing, and a dustproof mesh is provided inside the air outlet.
[0011] As a further preferred embodiment of this technical solution, a cover plate is provided on the front of the outer casing, and multiple air inlets are provided inside the cover plate. A filter screen is provided on the side of the cover plate near the outer casing.
[0012] This utility model provides a humidifier for a modified atmosphere storage container, which has the following beneficial effects:
[0013] (1) This utility model ensures the cleanliness of the returned water by allowing excess water to flow back into the water tank when water is supplied to the wet membrane body. This is achieved through the combined action of the coarse filter screen and the filter element, thus preventing pipe blockage. After the humidifier has been used for a period of time, the handle can be pulled to move the coarse filter screen and filter element out of the water tank, making it convenient to clean the coarse filter screen and replace the filter element, thereby ensuring the overall filtration effect.
[0014] (2) This utility model starts the return pump, pumps the water in the water tank to the water inlet pipe through the return pipe, and delivers the water to the top of the wet membrane body through the water distributor. The water forms a water film on the surface of the wet membrane body and slowly permeates downwards by gravity. At this time, the fan works and draws the air to be humidified into the outer shell. The air passes through the wet membrane body, thereby humidifying the air and adjusting the humidity inside the container. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the structure of this utility model;
[0016] Figure 2 This is a schematic diagram of the outer shell and cover plate structure of this utility model;
[0017] Figure 3 This is a schematic diagram of the water tank structure of this utility model;
[0018] Figure 4 For the present utility model Figure 3 Enlarged schematic diagram of the structure at point A in the middle;
[0019] Figure 5 This is a schematic diagram of the cross-sectional structure of the outer shell of this utility model;
[0020] Figure 6 This is a schematic diagram of the main structure of the wet film of this utility model.
[0021] In the diagram: 1. Outer shell; 2. Water tank; 3. Guide rail; 4. Mounting bracket; 5. Sealing gasket; 6. Coarse filter screen; 7. Filter element; 8. Handle; 9. Positioning groove; 10. Connecting rod; 11. Rotating plate; 12. Positioning plate; 13. Return spring; 14. Wet film body; 15. Connecting frame; 16. Water distributor; 17. Return pump; 18. Return pipe; 19. Water inlet pipe; 20. Fan; 21. Air guide plate; 22. Partition plate; 23. Air outlet; 24. Dustproof net; 25. Cover plate; 26. Air inlet; 27. Filter screen. Detailed Implementation
[0022] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.
[0023] This utility model provides a technical solution: such as Figures 1 to 6 As shown in this embodiment, a modified atmosphere container humidifier includes an outer shell 1. A water tank 2 is provided on the bottom side of the inner side of the outer shell 1. Guide rails 3 are symmetrically arranged on both sides of the inner wall of the water tank 2. A mounting frame 4 is slidably connected inside the guide rails 3. A sealing gasket 5 is provided between the mounting frame 4 and the guide rails 3. A coarse filter screen 6 is provided on the top of the mounting frame 4. A filter element 7 is provided on the bottom of the mounting frame 4. A handle 8 is fixedly connected to one side of the mounting frame 4. Two positioning grooves 9 are symmetrically arranged on the side of the mounting frame 4 near the handle 8.
[0024] When water is supplied to the wet membrane body 14, excess water flows back into the water tank 2. Through the combined action of the coarse filter screen 6 and the filter element 7, the cleanliness of the returned water is ensured, preventing pipe blockage. After the humidifier has been used for a period of time, pull the handle 8 to move the mounting bracket 4, which in turn moves the coarse filter screen 6 and the filter element 7 out of the water tank 2. This facilitates the cleaning of the coarse filter screen 6 and the replacement of the filter element 7, ensuring the overall filtration effect. A sealing gasket 5 is provided between the mounting bracket 4 and the guide rail 3 of the water tank 2 to ensure the sealing of the connection and prevent leakage.
[0025] Two connecting rods 10 are symmetrically arranged on the side of the outer shell 1 near the handle 8. A rotating plate 11 is rotatably connected to the surface of the connecting rod 10. A positioning plate 12 is fixedly connected to the side of the rotating plate 11 near the outer shell 1. The positioning plate 12 is engaged in the positioning groove 9. A return spring 13 is provided between the rotating plate 11 and the connecting rod 10.
[0026] Rotate the rotating plate 11 so that it is perpendicular to the mounting bracket 4. Under the elastic force of the return spring 13, the rotating plate 11 drives the positioning plate 12 to move closer to the mounting bracket 4 and makes the positioning plate 12 engage in the positioning groove 9, thereby completing the installation of the mounting bracket 4 and preventing it from being removed from the inside of the water tank 2 during use.
[0027] A wet membrane body 14 is fixedly connected to one side of the top of the water tank 2. A connecting frame 15 is fixedly connected to the top of the wet membrane body 14. A water distributor 16 is installed inside the connecting frame 15.
[0028] A return pump 17 is fixedly connected to the bottom inside the outer casing 1. A return pipe 18 is fixedly connected between the return pump 17 and the water tank 2. An inlet pipe 19 is fixedly connected between the return pump 17 and the water distributor 16.
[0029] The return pump 17 is started, and the water in the water tank 2 is pumped into the water inlet pipe 19 through the return pipe 18. The water is then delivered to the top of the wet membrane body 14 through the water distributor 16. The water forms a water film on the surface of the wet membrane body 14 and slowly seeps downwards by gravity. At this time, the fan 20 works and draws the air to be humidified into the outer shell 1. The air passes through the humid wet membrane body 14, thereby humidifying the air and adjusting the humidity inside the container.
[0030] A fan 20 is fixedly connected to one side of the inner wall of the outer casing 1. A guide plate 21 and a partition plate 22 are fixedly connected to the inner wall of the outer casing 1. The partition plate 22 is in contact with the connecting frame 15.
[0031] An air outlet 23 is provided on the top front of the outer casing 1, and a dustproof net 24 is provided inside the air outlet 23.
[0032] The front of the outer casing 1 is provided with a cover plate 25, and the inside of the cover plate 25 is provided with multiple air inlets 26. A filter screen 27 is provided on the side of the cover plate 25 near the outer casing 1.
[0033] A filter screen 27 and a dustproof screen 24 are respectively installed at the air inlet 26 and the air outlet 23 to reduce the entry of foreign objects and particles.
[0034] This utility model provides a humidifier for a modified atmosphere storage container, the specific working principle of which is as follows:
[0035] In use, the outer shell 1 is installed in a suitable position in the container, the water tank 2 is connected to the water inlet hose, and the water inlet is controlled by an electric valve. A humidity sensor is installed inside the container. When the humidity is low, the control system on the container activates the fan 20 and the return pump 17. The fan 20 runs and draws outside air into the outer shell 1. The air flows through the filter screen 27, which filters out foreign objects and particles. The return pump 17 operates and draws water from the water tank 2 into the water inlet pipe 19 through the return pipe 18. The water is then delivered to the top of the wet membrane body 14 through the water distributor 16. The water forms a water film on the surface of the wet membrane body 14 and slowly permeates downwards by gravity. The air passes through the humid wet membrane body 14, thus humidifying the air. The humidified air passes through the chamber between the air guide plate 21 and the partition plate 22 and is removed from the air outlet 23, thereby humidifying the container.
[0036] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A modified atmosphere container humidifier, comprising an outer shell (1), characterized in that: A water tank (2) is provided on the bottom side of the inner wall of the outer shell (1). Guide rails (3) are symmetrically arranged on both sides of the inner wall of the water tank (2). A mounting bracket (4) is slidably connected inside the guide rails (3). A sealing gasket (5) is provided between the mounting bracket (4) and the guide rails (3). A coarse filter screen (6) is provided on the top of the mounting bracket (4). A filter element (7) is provided on the bottom of the mounting bracket (4). A handle (8) is fixedly connected to one side of the mounting bracket (4). Two positioning grooves (9) are symmetrically arranged on the side of the mounting bracket (4) near the handle (8).
2. The modified atmosphere container humidifier according to claim 1, characterized in that: Two connecting rods (10) are symmetrically arranged on the side of the outer shell (1) near the handle (8). A rotating plate (11) is rotatably connected to the surface of the connecting rod (10). A positioning plate (12) is fixedly connected to the side of the rotating plate (11) near the outer shell (1). The positioning plate (12) is engaged in the positioning groove (9). A return spring (13) is provided between the rotating plate (11) and the connecting rod (10).
3. A humidifier for a controlled atmosphere storage container according to claim 1, characterized in that: A wet membrane body (14) is fixedly connected to one side of the top of the water tank (2), and a connecting frame (15) is fixedly connected to the top of the wet membrane body (14). A water distributor (16) is provided inside the connecting frame (15).
4. A humidifier for a controlled atmosphere storage container according to claim 1, characterized in that: A reflux pump (17) is fixedly connected to the bottom inside the outer shell (1). A reflux pipe (18) is fixedly connected between the reflux pump (17) and the water tank (2). An inlet pipe (19) is fixedly connected between the reflux pump (17) and the water distributor (16).
5. A humidifier for a controlled atmosphere storage container according to claim 1, characterized in that: A fan (20) is fixedly connected to one side of the inner wall of the outer shell (1), and a guide plate (21) and a partition plate (22) are fixedly connected to the inner wall of the outer shell (1). The partition plate (22) is in contact with the connecting frame (15).
6. A humidifier for a controlled atmosphere storage container according to claim 1, characterized in that: An air outlet (23) is provided on the top front of the outer casing (1), and a dustproof net (24) is provided inside the air outlet (23).
7. A humidifier for a controlled atmosphere storage container according to claim 1, characterized in that: The front of the outer casing (1) is provided with a cover plate (25), and the inside of the cover plate (25) is provided with a plurality of air inlets (26). A filter screen (27) is provided on the side of the cover plate (25) near the outer casing (1).