A dehumidifier inner liner replacement structure

Abstract

This utility model discloses a replacement structure for the inner liner of a desiccant, comprising an inner liner body: the inner liner body consists of a holding cylinder and a pressure regulating cylinder, an mounting plate is installed on the upper end of the holding cylinder, the holding cylinder is filled with desiccant, the upper end of the pressure regulating cylinder is installed on the bottom end of the holding cylinder, the holding cylinder and the pressure regulating cylinder are connected through each other, a stopper plate is slidably installed inside the holding cylinder, a spring is installed inside the pressure regulating cylinder below the stopper plate, and a second limiting mechanism is installed between the stopper plate and the pressure regulating cylinder. When the internal air pressure of the transformer increases, the gas pushes the stopper plate downwards and compresses the spring, increasing the volume inside the pressure regulating cylinder and releasing the internal pressure; when the internal air pressure decreases, the spring returns to its original position and pushes the stopper plate upwards, reducing the volume of the pressure regulating cylinder, allowing air to enter the transformer and balance the internal air pressure.

Description

Technical Field

[0001] This utility model relates to the technical field, specifically to a liner replacement structure for a dehumidifier. Background Technology

[0002] A transformer desiccant, also known as a transformer breather or transformer desiccant, is an important accessory for transformers. The inner liner of the desiccant is its core component, used to hold the desiccant and absorb moisture from the air.

[0003] A desiccant, with Chinese patent number 202022236467.X, includes: a connecting pipe, an upper flange, a filter, a lower flange, and an oil cup. The upper flange connects the filter and the connecting pipe, which is connected to the capsule or bellows of an oil tank. The lower flange connects the filter and the oil cup. Vent holes are provided on both the upper and lower flanges. A ball valve is installed on the side of the upper flange. The filter includes a filter cover and a desiccant loaded inside the filter cover. A filling port and a cleaning port are provided on the filter cover, and the outlets of the filling port and the cleaning port are sealed by threaded plugs. The oil cup includes an inner oil cup cover and an outer oil cup cover. The outer oil cup cover is fitted over the outer side of the inner oil cup cover and is filled with transformer oil. The inner oil cup cover is bottomless and does not contact the bottom of the outer oil cup cover. An exhaust port is provided on the outer oil cup cover near the lower flange, and a filter element is installed on the exhaust port.

[0004] The existing technical solution still has the following problems when used: 1. The inner liner is a single piece and cannot be replaced during use; 2. The overall structure is relatively complex, and outside air can enter the inner liner during use, affecting the lifespan of the desiccant inside the liner; Therefore, improvements are needed to address the aforementioned issues. Utility Model Content

[0005] The purpose of this invention is to provide a replacement structure for the inner liner of a dehumidifier, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a desiccant inner liner replacement structure, comprising an inner liner body: the inner liner body is composed of a holding cylinder and a pressure regulating cylinder, an mounting plate is installed on the upper end of the holding cylinder, a threaded ring is provided on the outer side of the upper end of the mounting plate, the holding cylinder is filled with desiccant, the upper end of the pressure regulating cylinder is installed on the bottom end of the holding cylinder, the holding cylinder and the pressure regulating cylinder are connected through, a stopper plate is slidably installed inside the holding cylinder, a spring is installed inside the pressure regulating cylinder below the stopper plate, the bottom end of the pressure regulating cylinder is connected to the outside, and a second limiting mechanism is installed between the stopper plate and the pressure regulating cylinder.

[0007] Preferably, the upper end of the container is provided with an air distribution plate, the upper end of the air distribution plate is provided with a plurality of mesh holes, and the air distribution plate is slidably connected to the container through a first limiting mechanism.

[0008] Preferably, the first limiting mechanism consists of a protrusion and a groove. The protrusion is welded to the inside of the container cylinder, and the groove is disposed on the outside of the air distribution plate. The protrusion is slidably installed inside the groove.

[0009] Preferably, a rubber pad is provided at the upper end of the mounting plate, and the rubber pad is attached to the upper side of the mounting plate with adhesive.

[0010] Preferably, the second limiting mechanism consists of a limiting rod and a through hole, the through hole being disposed on the upper side of the plug plate, the limiting rod being installed inside the pressure regulating cylinder, and the through hole and the limiting rod being slidably connected.

[0011] Preferably, a sealing ring is provided on the outer side of the plug plate and the inner side of the through hole, and the sealing ring is attached to the outer side of the plug plate and the inner side of the through hole by adhesive.

[0012] Preferably, a mesh sheet is provided at the bottom of the container, and the mesh sheet is placed at the bottom of the container.

[0013] Compared with the prior art, the beneficial effects of this utility model are: 1. The desiccant's inner liner replacement structure works as follows: when the internal air pressure of the transformer increases, the gas pushes the stopper plate downward and compresses the spring, increasing the capacity inside the pressure regulating cylinder and releasing the internal pressure; when the internal air pressure decreases, the spring resets and pushes the stopper plate upward, reducing the volume of the pressure regulating cylinder, allowing air to enter the transformer and balance the internal air pressure.

[0014] 2. The inner liner replacement structure of the desiccant features a mesh on the air distribution plate that disperses the air entering the container, ensuring uniform contact between the air and the desiccant and improving drying efficiency. The sliding connection achieved through the first limiting mechanism facilitates the disassembly and installation of the air distribution plate, making it easy to replace or maintain the desiccant. It also ensures that the air distribution plate remains stable during operation and will not shift due to airflow impact. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the internal structure of the present invention; Figure 3 This is a schematic diagram of the structure of the pressure regulating cylinder of this utility model; Figure 4 This is a schematic diagram of the structure of the wind distribution plate of this utility model.

[0016] In the diagram: 1. Inner liner body; 2. Container cylinder; 3. Pressure regulating cylinder; 4. Threaded ring; 5. Mounting plate; 6. Rubber pad; 7. First limiting mechanism; 8. Groove; 9. Raised strip; 10. Air distribution plate; 11. Desiccant; 12. Mesh sheet; 13. Second limiting mechanism; 14. Plug plate; 15. Spring; 16. Through hole; 17. Limiting rod; 18. Sealing ring; 19. Mesh. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] Please see Figure 1-4 This utility model provides a technical solution: a liner replacement structure for a desiccant, comprising a liner body 1: the liner body 1 is composed of a holding cylinder 2 and a pressure regulating cylinder 3, an mounting plate 5 is installed on the upper end of the holding cylinder 2, a threaded ring 4 is provided on the outer side of the upper end of the mounting plate 5, the holding cylinder 2 is filled with desiccant 11, the upper end of the pressure regulating cylinder 3 is installed on the bottom end of the holding cylinder 2, the holding cylinder 2 and the pressure regulating cylinder 3 are connected through each other, a stopper plate 14 is slidably installed inside the holding cylinder 2, a spring 15 is installed inside the pressure regulating cylinder 3 below the stopper plate 14, the bottom end of the pressure regulating cylinder 3 is connected to the outside, and a second limiting mechanism 13 is installed between the stopper plate 14 and the pressure regulating cylinder 3.

[0019] Furthermore, an air distribution plate 10 is provided at the upper end of the container 2. The air distribution plate 10 has several mesh holes 19 at its upper end. The air distribution plate 10 is slidably connected to the container 2 through the first limiting mechanism 7. The mesh holes 19 on the air distribution plate 10 can disperse the air entering the container 2, so that the air is evenly contacted with the desiccant 11, thereby improving the drying efficiency. The sliding connection achieved by the first limiting mechanism 7 not only facilitates the disassembly and installation of the air distribution plate 10 and makes it easy to replace or maintain the desiccant 11, but also ensures that the position of the air distribution plate 10 is stable during operation and will not be displaced due to airflow impact.

[0020] Furthermore, the first limiting mechanism 7 consists of a protrusion 9 and a groove 8. The protrusion 9 is welded to the inside of the container 2 around the perimeter, and the groove 8 is set on the outside of the air distribution plate 10 around the perimeter. The protrusion 9 is slidably installed inside the groove 8. When it is necessary to install or remove the air distribution plate 10, the air distribution plate 10 can be moved smoothly along the direction of the protrusion 9 through the sliding cooperation between the groove 8 and the protrusion 9, so as to achieve quick loading and unloading. At the same time, the protrusion 9 embedded in the groove 8 can restrict the radial movement of the air distribution plate 10, ensuring that the air distribution plate 10 will not shake due to vibration or airflow during operation, thus ensuring the stability of air circulation.

[0021] Furthermore, a rubber pad 6 is provided on the upper end of the mounting plate 5. The rubber pad 6 is attached to the upper side of the mounting plate 5 with adhesive. The rubber pad 6 has good elasticity and sealing performance. When the inner liner body 1 is connected to the dehumidifier shell through the mounting plate 5, the rubber pad 6 is squeezed and deformed, which can fill the gap between the mounting plate 5 and the shell, enhance the overall sealing performance, effectively prevent the external humid air from seeping in from the connection part, and further ensure the dry environment inside the transformer.

[0022] Furthermore, the second limiting mechanism 13 consists of a limiting rod 17 and a through hole 16. The through hole 16 is located on the upper side of the plug plate 14, and the limiting rod 17 is installed inside the pressure regulating cylinder 3. The through hole 16 and the limiting rod 17 are slidably connected. During the process of the plug plate 14 moving up and down with the change of air pressure, the limiting rod 17 passes through the through hole 16 and maintains a sliding fit with the through hole 16, which can guide the movement direction of the plug plate 14 and prevent the plug plate 14 from tilting or getting stuck due to uneven force. This structure ensures the smooth operation of the plug plate 14 during the pressure regulation process and guarantees the reliability of the pressure regulation function.

[0023] Furthermore, a sealing ring 18 is provided on the outer side of the stopper plate 14 and the inner side of the through hole 16. The sealing ring 18 is attached to the outer side of the stopper plate 14 and the inner side of the through hole 16 with adhesive. The sealing ring 18 can enhance the sealing between the stopper plate 14 and the inner wall of the container 2, and between the through hole 16 and the limiting rod 17, to prevent outside air from entering the pressure regulating cylinder 3 and to prevent outside air from entering, thereby increasing the drying pressure of the air inside the container 2.

[0024] Furthermore, a mesh plate 12 is provided at the bottom of the container 2. The mesh plate 12 is placed at the bottom of the container 2, allowing air to flow freely between the container 2 and the pressure regulating cylinder 3, ensuring the normal operation of the pressure regulating function. At the same time, it can prevent the desiccant 11 particles in the container 2 from entering the interior of the pressure regulating cylinder 3, preventing the desiccant 11 from clogging the pressure regulating mechanism or affecting the normal movement of the stopper plate 14, thus ensuring the working stability of the pressure regulating cylinder 3 and the overall drying effect of the inner liner.

[0025] Working Principle: When replacing the inner liner of the dehumidifier, the pressure regulating cylinder 3 dynamically adjusts according to changes in the internal air pressure of the transformer. When the internal air pressure rises, the gas pushes the stopper plate 14 downwards and compresses the spring 15, increasing the capacity of the pressure regulating cylinder 3 and releasing internal pressure. When the internal air pressure decreases, the spring 15 returns to its original position, pushing the stopper plate 14 upwards, reducing the volume of the pressure regulating cylinder 3. Air then enters the transformer, balancing the internal air pressure. The desiccant 11 in the container 2 dries the air introduced into and exited from the transformer. The threaded ring 4 on the mounting plate 5 facilitates the fixed connection between the inner liner body 1 and the dehumidifier shell. The second limiting mechanism 13 ensures that the stopper plate 14 maintains a stable movement trajectory during pressure adjustment. This is the characteristic of the dehumidifier's inner liner replacement structure. Any content not described in detail in this instruction belongs to existing technology known to those skilled in the art.

[0026] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A liner replacement structure for a dehumidifier, characterized in that, The inner liner body (1) consists of a container (2) and a pressure regulating cylinder (3). The upper end of the container (2) is equipped with an installation plate (5). A threaded ring (4) is provided on the outer side of the upper end of the installation plate (5). The container (2) is filled with a desiccant (11). The upper end of the pressure regulating cylinder (3) is installed at the bottom end of the container (2). The container (2) and the pressure regulating cylinder (3) are connected through each other. A stopper plate (14) is slidably installed inside the container (2). A spring (15) is installed inside the pressure regulating cylinder (3) below the stopper plate (14). The bottom end of the pressure regulating cylinder (3) is connected to the outside. A second limiting mechanism (13) is installed between the stopper plate (14) and the pressure regulating cylinder (3).

2. The desiccant inner liner replacement structure according to claim 1, characterized in that: The upper end of the container (2) is provided with a wind equalization plate (10), and the upper end of the wind equalization plate (10) is provided with a plurality of mesh holes (19). The wind equalization plate (10) is slidably connected to the container (2) through the first limiting mechanism (7).

3. The desiccant inner liner replacement structure according to claim 2, characterized in that: The first limiting mechanism (7) is composed of a protrusion (9) and a groove (8). The protrusion (9) is welded to the inside of the container (2) and the groove (8) is set on the outside of the wind equalizing plate (10). The protrusion (9) is slidably installed inside the groove (8).

4. The desiccant inner liner replacement structure according to claim 1, characterized in that: A rubber pad (6) is provided on the upper end of the mounting plate (5), and the rubber pad (6) is attached to the upper side of the mounting plate (5) with adhesive.

5. The desiccant inner liner replacement structure according to claim 1, characterized in that: The second limiting mechanism (13) consists of a limiting rod (17) and a through hole (16). The through hole (16) is located on the upper side of the plug plate (14), and the limiting rod (17) is installed inside the pressure regulating cylinder (3). The through hole (16) and the limiting rod (17) are slidably connected.

6. The desiccant inner liner replacement structure according to claim 4, characterized in that: A sealing ring (18) is provided on the outer side of the plug plate (14) and the inner side of the through hole (16). The sealing ring (18) is attached to the outer side of the plug plate (14) and the inner side of the through hole (16) by adhesive.

7. The desiccant inner liner replacement structure according to claim 1, characterized in that: The bottom end of the container (2) is provided with a mesh plate (12), which is placed at the bottom end of the container (2).

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