Hot gas defrosting type evaporator
By setting the cream pipe road in the lower part of the evaporator and using thermal frost to treat the frost layer, and setting the active anti -blocking rod above the drainage hole, the surface frost of the evaporator's wing tablet is frost and the residual ice blocking the drainage holes. , Achieve high -efficiency frost and normal drainage.
Patent Information
- Application Number
- CN202323377643.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-12-12
- Publication Date
- 2025-01-28
- Estimated Expiration
- 2033-12-12
AI Technical Summary
After a long time of working, frost is easily formed on the surface of the fins. If not processed in time, the thickening of the frost layer will affect the heat exchange performance of the airflow, which will in turn affect the refrigeration effect. At the same time, after the hot gas defrost method treats the frost layer, residual ice can easily block the drainage hole, resulting in the defrost water not being discharged normally.
Armal frost evaporator is designed. By setting a cream pipeline through the lower part of the evaporator, the heat generated by the compressor is used for frosting, and the active anti -blocking rod is set up above the drainage hole to prevent residual ice from the residual ice. Cover.
The efficient frost is achieved, which avoids the thickening of the frost layer and affects the refrigeration effect. At the same time, it effectively prevents the drainage holes by preventing the blocking rods, and ensures the normal operation of frosting and drainage.
Smart Images
Figure CN222418037U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to an evaporator, in particular to a hot gas defrosting type evaporator. Background Art
[0002] The evaporator is the main component of the cold storage for refrigeration. However, after working for a long time, the evaporator is prone to frost on the surface of its fins. If the frost layer is not handled in time, the frost layer will gradually thicken, affecting the heat exchange performance of the air flow through the evaporator, and then seriously affecting the refrigeration effect. In order to solve this problem, the evaporator is generally defrosted. The commonly used defrosting method is the hot gas defrosting method, that is, the hot gas discharged during the working process of the compressor is used to defrost the frost layer on the surface of the evaporator. The defrosted water formed after the frost layer melts falls to the water receiving tray set under the fins, and is discharged from the evaporator through the drainage holes opened on the water receiving tray. However, in actual use, if the frost layer is thick, after the hot gas defrosting falls into the water receiving tray, it is still easy to leave residual ice that has not been completely melted. When the residual ice moves to the drainage hole on the water receiving tray, it is easy to block the drainage hole, resulting in the inability of the defrosted water to be discharged normally, which is not conducive to the normal operation of the evaporator. Utility Model Content
[0003] In order to overcome the deficiencies of the prior art, the utility model aims to provide a hot gas defrosting evaporator capable of ensuring normal operation of defrosting and drainage.
[0004] In order to solve the above problems, the technical solutions adopted by the utility model are as follows:
[0005] A hot gas defrosting type evaporator comprises an outer shell, an evaporator body, a water receiving pan and an anti-blocking rod, wherein the evaporator body is installed in the outer shell, the water receiving pan is located below the evaporator body and is used to receive liquid flowing down from the evaporator body, a drainage hole is formed at one end of the water receiving pan, an anti-blocking rod is arranged above the drainage hole, the anti-blocking rod is movably mounted on the outer shell, and the anti-blocking rod can move in a direction away from or close to the drainage hole, and a moving trajectory D of the anti-blocking rod intersects with an upper end surface of the drainage hole.
[0006] Furthermore, a defrost pipeline is provided in the shell, and the defrost pipeline passes through the lower part of the evaporator body, one end of the defrost pipeline is connected to the compressor, and the other end of the defrost pipeline is connected to the water receiving tray.
[0007] Furthermore, the anti-blocking rod is rotatably mounted on the outer shell.
[0008] Furthermore, the anti-blocking rod is fixedly mounted on one end of the transmission shaft, the transmission shaft is rotatably mounted on the housing, and the other end passes through the housing and is drivingly connected to the driving motor.
[0009] Furthermore, the end of the anti-blocking rod is an anti-blocking portion, the surface of the anti-blocking portion is an arc-shaped structure, and a plurality of protrusions are provided on the periphery of the anti-blocking portion.
[0010] Furthermore, when the anti-blocking portion is located at the lowest end, the plane where the lowest point of the anti-blocking portion is located is lower than the upper end surface of the drainage hole.
[0011] Furthermore, the upper surface of the water receiving tray for receiving falling water is arranged in an inclined manner, and the end of the upper surface of the water receiving tray close to the drainage hole is the lower end.
[0012] Furthermore, the rotation axis of the anti-blocking rod is perpendicular to the central axis of the drainage hole.
[0013] Compared with the prior art, the beneficial effects of the utility model are as follows: in the utility model, a defrost pipeline is arranged at the lower part of the evaporator body, and hot air generated by the compressor is introduced into the defrost pipeline, so as to achieve the purpose of defrosting the frost layer condensed on the fins, with high defrosting efficiency, energy saving and environmental protection; at the same time, a movable anti-blocking rod is arranged above the drain hole, and the anti-blocking rod is rotated relative to the drain hole to achieve the purpose of breaking or pushing away the residual ice at the drain hole, thereby effectively preventing the drain hole from being blocked and ensuring the normal operation of defrosting and drainage. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 This is a schematic diagram of the structure of a hot gas defrosting evaporator of the utility model;
[0015] Figure 2 for Figure 1 A schematic diagram of the local enlarged structure at point A in the middle;
[0016] Figure 3 It is a structural schematic diagram of a hot gas defrosting type evaporator according to the utility model in the front view direction of the anti-blocking device;
[0017] Among them, 1. shell; 11. through hole; 12. mounting hole; 2. evaporator body; 21. fin; 22. heat exchange tube; 3. water receiving tray; 31. drainage hole; 32. connecting column; 33. retaining edge; 4. water outlet pipe; 5. anti-blocking device; 51. driving motor; 52. transmission shaft; 53. rotating column; 531. anti-blocking part; 5311. protrusion. DETAILED DESCRIPTION
[0018] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.
[0019] It should be noted that, in the description of the technical solution of the present invention, some directional words used to clearly describe the technical features of the present invention, such as "front", "back", "up", "down", "top", "bottom", "inside", "outside", etc., are all in accordance with the orientation of the drawings of the present invention.
[0020] Example
[0021] like Figure 1 and Figure 2 As shown, a hot gas defrosting type evaporator of this embodiment includes a shell 1, an evaporator body 2, a water receiving tray 3 and an anti-blocking device 5. The evaporator body 2 is installed in the shell 1. The evaporator body 2 includes a heat exchange tube 22 and a plurality of fins 21 arranged side by side and sleeved on the heat exchange tube 22. Since frost is easily formed on the lower part of the fin 21 after long-term use of the evaporator, in order to achieve the purpose of defrosting, a hot gas defrosting method is used in this embodiment to melt the frost on the fin 21. The specific implementation method is to set a defrost pipeline (not shown in the figure) inside the shell 1, and the defrost pipeline passes through the lower part of the plurality of fins 21 arranged side by side, and one end of the defrost pipeline is connected to the compressor. The hot gas discharged by the compressor enters the shell 1 through the defrost pipeline to achieve the defrosting treatment of the lower part of the fin 21. Because during the defrosting process, hot air will be liquefied through heat exchange to form defrost water, the water receiving pan 3 is installed under the evaporator body 2 in this embodiment to receive and collect the liquid flowing down from the fins 21. A drainage hole 31 is provided at one end of the water receiving pan 3 to drain the accumulated water in the water receiving pan 3. The other end of the defrost pipeline is connected to the water receiving pan 3, so that the defrost water flows into the water receiving pan 3 along the defrost pipeline.
[0022] After the defrosting process, some residual ice that has not been completely melted will fall off the fins 21 and enter the water receiving tray 3, and flow to the drainage hole 31 of the water receiving tray 3 along with the water flow. If the residual ice is large, it is easy to block the drainage hole 31, affecting the normal drainage. Therefore, in this embodiment, an anti-blocking device 5 is provided above the drainage hole 31. The anti-blocking device 5 includes an anti-blocking rod 53 movably mounted on the housing 1. The anti-blocking rod 53 can move in a direction away from or close to the drainage hole 31. The moving track D of the anti-blocking rod 53 intersects with the upper end surface of the drainage hole 31, and the moving track D of the anti-blocking rod 53 does not interfere with the side wall of the drainage hole 31. In this way, when the anti-blocking rod 53 moves to the upper end surface of the drainage hole 31, the residual ice blocking the upper end surface of the drainage hole 31 can be pushed away or broken.
[0023] The anti-blocking device 5 also includes a transmission shaft 52 and a driving motor 51, and the anti-blocking rod 53 is rotatably mounted on the outer shell 1 through the transmission shaft 52. Specifically, in the present embodiment, the anti-blocking rod 53 is fixedly mounted on one end of the transmission shaft 52, and a mounting hole 12 is provided on the outer shell 1. The transmission shaft 52 is rotatably mounted in the mounting hole 12 of the outer shell 1 through a bearing, and the other end of the transmission shaft 52 passes through the mounting hole 12 and is drivingly connected to the driving motor 51. The driving motor 51 is fixedly mounted on the outside of the outer shell 1. When the driving motor 51 is started, it drives the transmission shaft 52 to rotate continuously, and the continuous rotation of the transmission shaft 52 drives the anti-blocking rod 53 to rotate synchronously. The rotation axis of the anti-blocking rod 53 is perpendicular to the central axis of the drain hole 31. As shown Figure 3As shown, both ends of the anti-blocking rod 53 are provided with an anti-blocking portion 531, the surface of the anti-blocking portion 531 is an arc-shaped structure, and the outer periphery of the anti-blocking portion 531 is provided with a plurality of protrusions 5311 for increasing friction. When the anti-blocking portion 531 is located at the lowest end, the plane where the lowest point of the anti-blocking portion 531 is located is lower than the upper end surface of the drainage hole 31, the thickness of the anti-blocking portion 531 is less than the diameter of the drainage hole 31, and the running track of the anti-blocking portion 531 does not interfere with the side wall of the drainage hole 31. With this structure, the anti-blocking portion 531 can crush the residual ice stuck at the entrance of the drainage hole 31; if the residual ice is thick, the residual ice is pushed away from the drainage hole 31, and if the residual ice is thin, it is directly crushed.
[0024] In addition, in order to allow water to flow more smoothly into the drainage hole 31, the upper surface of the water receiving tray 3 in this embodiment for receiving the falling water is arranged inclined with an angle of 5-15 degrees, and the end of the upper surface of the water receiving tray 3 close to the drainage hole 3 is the lower end, which is conducive to the smooth flow of accumulated water into the drainage hole 31.
[0025] The utility model discloses a hot gas defrosting type evaporator, which achieves the purpose of defrosting the frost layer condensed on the fins 21 by laying a defrost pipeline at the lower part of the evaporator body 2 and passing hot air generated by the compressor into the defrost pipeline. The defrost efficiency is high and it is energy-saving and environmentally friendly. At the same time, a movable anti-blocking rod 53 is arranged above the drain hole 31. Through the rotation of the anti-blocking rod 53 relative to the drain hole 31, the purpose of breaking or pushing away the residual ice at the drain hole 31 is achieved, thereby effectively preventing the drain hole 31 from being blocked and ensuring the normal operation of defrosting and drainage.
[0026] For those skilled in the art, various other corresponding changes and deformations can be made according to the technical solutions and concepts described above, and all of these changes and deformations should fall within the protection scope of the claims of the utility model.
Claims
1. A hot gas defrosting evaporator, characterized in that: The evaporator comprises an outer shell (1), an evaporator body (2), a water receiving tray (3) and an anti-blocking rod (53); the evaporator body (2) is installed in the outer shell (1); the water receiving tray (3) is located below the evaporator body (2) and is used to receive liquid flowing down from the evaporator body (2); a drainage hole (31) is opened at one end of the water receiving tray (3); an anti-blocking rod (53) is arranged above the drainage hole (31); the anti-blocking rod (53) is movably installed on the outer shell (1), and the anti-blocking rod (53) can move in a direction away from or close to the drainage hole (31); and the movement track (D) of the anti-blocking rod (53) intersects with the upper end surface of the drainage hole (31).
2. A hot gas defrosting evaporator according to claim 1, characterized in that: A defrost pipeline is provided in the shell (1), and the defrost pipeline passes through the lower part of the evaporator body (2). One end of the defrost pipeline is connected to the compressor, and the other end of the defrost pipeline is connected to the water receiving tray (3).
3. The hot gas defrosting evaporator according to claim 1, characterized in that: The anti-blocking rod (53) is rotatably mounted on the housing (1).
4. A hot gas defrosting evaporator according to claim 3, characterized in that: The anti-blocking rod (53) is fixedly mounted on one end of a transmission shaft (52); the transmission shaft (52) is rotatably mounted on the housing (1); and the other end passes through the housing (1) and is drivingly connected to a driving motor (51).
5. The hot gas defrosting evaporator according to claim 4, characterized in that: The end of the anti-blocking rod (53) is an anti-blocking portion (531), the surface of the anti-blocking portion (531) is an arc-shaped structure, and a plurality of protrusions (5311) are provided on the outer periphery of the anti-blocking portion (531).
6. A hot gas defrosting evaporator according to claim 5, characterized in that: When the anti-blocking portion (531) is located at the lowest end, the plane where the lowest point of the anti-blocking portion (531) is located is lower than the upper end surface of the drainage hole (31).
7. The hot gas defrosting evaporator according to claim 1, characterized in that: The upper surface of the water receiving tray (3) for receiving falling water is arranged in an inclined manner, and the end of the upper surface of the water receiving tray (3) close to the drainage hole (31) is the lower end.
8. The hot gas defrosting evaporator according to claim 3, characterized in that: The rotation axis of the anti-blocking rod (53) is perpendicular to the central axis of the drainage hole (31).