An evaporator

Abstract

The utility model relates to the evaporimeter in the field of continuous ice machine, the evaporimeter includes outer tube and inner tube, and the outer tube is apart from the inner tube, and there is cavity between both for filling heat conduction material. Outer tube wall is equipped with the pass material mouth and cavity intercommunication. Adopt this technical scheme, through the reasonable setting pass material mouth structure, make the evaporimeter assembly time can more convenient and efficient introduction heat conduction material and reliable seal. Specifically in evaporimeter casing open specific pass material mouth, simplify filling procedure. In addition, set up multiple coordinated pass material mouth and form efficient material - exhaust system, one pass material mouth material, another exhaust, ensure that heat conduction material is smoothly injected, exhaust gas, maintain air pressure balance. This design improves production efficiency, makes heat conduction material filling more uniform and dense, and improves evaporimeter heat conduction performance and service life.

Description

Technical Field

[0001] This utility model relates to the field of shaved ice machines, specifically to an evaporator. Background Technology

[0002] Currently, in the invention patent application number 2025113025541, the structure divides the evaporator into an outer cylinder and an inner cylinder cavity structure. The inner and outer cylinders can rotate relative to each other. The inner cylinder is fixed on the outer support, and the outer cylinder is driven to rotate by an external drive mechanism. Heat transfer between the inner and outer cylinders is achieved by injecting thermally conductive silicone grease, and the refrigerant exists only in the inner cylinder.

[0003] The specific workflow is as follows: Refrigerant enters the inner cavity of the inner cylinder through the throttling orifice on the inlet pipe, absorbs heat, and lowers the temperature of the inner cylinder. The low temperature is then transferred to the outer cylinder surface via cryogenic thermal grease. The heated refrigerant is then discharged through the exhaust port of the outlet pipe, thus circulating and exchanging heat. The external bearing is rotatably mounted on the base, and the outer cylinder of the evaporator is rotated by a motor. The welded section consisting of the outlet pipe, inlet pipe, and inner cylinder does not participate in the rotation, thus eliminating the possibility of refrigerant leakage due to sealing material issues currently found in the market.

[0004] This patent fundamentally solves problems such as refrigerant leakage, complex structure and assembly, and poor cooling effect in evaporators. However, the patent diagrams and descriptions do not mention how to inject the thermal grease into the sealed cavity formed by the outer and inner cylinders, while the quality of the thermal grease injection and the sealing effect are crucial to production and use. Forming a sealed cavity first and then injecting the thermal grease is almost impractical. If the outer cylinder is roughly welded in place, leaving one side filled with thermal grease before welding it sealed, this welding process may have at least the following potential risks: 1) The high temperature generated during welding may cause the thermal grease to burn and deteriorate, greatly affecting its thermal conductivity; 2) The presence of thermal grease may affect the reliability of the weld, leading to an unreliable weld and the risk of leakage, resulting in food contamination; 3) Burnt and deteriorated thermal grease may emit an unpleasant odor, affecting the working environment and the user experience of the product. Therefore, it is clear that a simple, effective, and reliable structural solution is urgently needed to address the issues of thermal grease injection quality and subsequent welding and sealing. Utility Model Content

[0005] The purpose of this invention is to provide an evaporator that can be easily filled with thermally conductive materials and has a simple structure.

[0006] An evaporator includes an outer cylinder and an inner cylinder disposed inside the outer cylinder. The outer cylinder and the inner cylinder are separate, and a cavity for filling a heat-conducting material is provided between the outer cylinder and the inner cylinder. A material inlet is provided on the wall of the outer cylinder, and the material inlet communicates with the cavity.

[0007] The objective of this utility model can also be optimized by the following technical measures.

[0008] Preferably, there are at least two feed inlets.

[0009] The location of the feed inlet can be adjusted according to actual needs to ensure that the heat-conducting material can be evenly filled into the cavity. Furthermore, the feed inlet's size is rationally designed to meet the requirements of rapid filling while effectively preventing leakage of the heat-conducting material after filling through sealing measures. The use of multiple feed inlets in combination can significantly improve filling efficiency and reduce performance problems caused by uneven filling. This design not only simplifies the operation process but also further enhances the overall reliability and practicality of the evaporator.

[0010] Preferably, the feed inlet has a boss protruding into the cavity, and the inner wall of the boss is threaded.

[0011] The boss design effectively enhances the connection strength between the feed port and the cavity, while the threaded structure facilitates the installation of sealing components, thereby further improving the reliability and sealing of the filling process.

[0012] Furthermore, a sealing plug is provided on the feed inlet, and the sealing plug is threadedly connected to the inner wall of the boss to seal the feed inlet.

[0013] The sealing plug is made of high-temperature and corrosion-resistant polymer materials or stainless steel to ensure stable performance during long-term use. Its outer surface is designed with anti-slip textures for easy application of force during installation or removal. Furthermore, the top of the sealing plug has a dedicated tool interface, allowing for more efficient tightening or loosening operations using auxiliary tools. This design not only enhances the practicality of the sealing plug but also further optimizes the user experience. In practical applications, the cooperation between the sealing plug and the boss effectively prevents external impurities from entering the cavity, thereby ensuring the purity and filling effect of the thermally conductive material.

[0014] Furthermore, a sealing ring is provided inside the feed inlet, and the sealing ring is pressed by a sealing plug to seal the feed inlet.

[0015] Furthermore, the feed inlet is provided with a first stepped surface, and the sealing ring is disposed on the first stepped surface.

[0016] Furthermore, a second step surface is provided on the first step surface, and the cap of the sealing plug abuts against the second step surface.

[0017] Preferably, the locking direction of the sealing plug is opposite to the rotation direction of the outer cylinder.

[0018] This design effectively prevents the sealing plug from loosening due to the rotation of the outer cylinder, thereby further improving the stability and reliability of the overall structure. Simultaneously, the reverse locking direction makes operation more convenient for users, eliminating the need for additional force adjustments to complete the tightening action. Furthermore, the design considers safety in practical use, ensuring consistent sealing performance even under high-speed rotation or vibration environments, providing strong protection for the long-term operation of the equipment.

[0019] By adopting the above technical solution, this utility model, through the rational design of the feed port structure, enables the evaporator to more conveniently and efficiently introduce heat-conducting material into the cavity and achieve reliable sealing during assembly. Specifically, this design provides a dedicated channel for the injection of heat-conducting material by opening feed ports of specific sizes and shapes on the evaporator shell, greatly simplifying the complex filling process in traditional methods. Furthermore, by cleverly setting multiple cooperating feed ports, a highly efficient feed-venting system is formed: when one feed port serves as the main channel for introducing heat-conducting material, the other feed port can simultaneously be used as an venting channel. This ensures both the smooth injection of heat-conducting material and the timely discharge of gas from the cavity, effectively maintaining the pressure balance inside the cavity. This dual feed port design not only improves production efficiency but, more importantly, ensures a more uniform and dense filling effect of the heat-conducting material within the cavity, thereby significantly improving the overall thermal conductivity and service life of the evaporator. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the present invention.

[0021] Figure 2 This is a side view of the present invention. Figure 3 This is a cross-sectional view (AA) of the present invention.

[0022] Figure 4 for Figure 3 Enlarged view of Part B In the diagram: outer cylinder 1, inner cylinder 2, cavity 3, feed port 4, sealing plug 5, plug body 51, plug cap 52, boss 6, first step surface 7, second step surface 8, sealing ring 9. Detailed Implementation

[0023] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0024] An evaporator mainly includes an outer cylinder 1 and an inner cylinder 2 disposed inside the outer cylinder 1. The outer cylinder 1 and the inner cylinder 2 are arranged separately from each other, and a cavity 3 of a specific shape is provided between the outer cylinder 1 and the inner cylinder 2. This cavity 3 is used to fill a thermally conductive material with good thermal conductivity. To facilitate the filling and replacement of the thermally conductive material, multiple material inlets 4 are designed on the side wall of the outer cylinder 1, and these material inlets 4 are all in communication with the cavity 3 structure.

[0025] The number of feed inlets 4 is not less than two, which can ensure that the heat-conducting material can be evenly filled into the entire cavity 3. When filling the heat-conducting material, one feed inlet 4 introduces the heat-conducting material, and the other feed inlet 4 discharges the gas in the cavity 3, so as to maintain the air pressure balance in the cavity 3 and facilitate the filling of the heat-conducting material in the cavity 3.

[0026] Each of the four feed inlets is provided with an inwardly protruding boss 6, the inner wall of which is machined with precision threads. To ensure the sealing performance of the device, each feed inlet 4 is also equipped with a dedicated sealing plug 5 assembly. The sealing plug 5 is engaged with the threads on the outer wall of its plug body 51 and the inner wall of the boss 6, thereby achieving a reliable seal of the feed inlet 4.

[0027] To further enhance the sealing effect, a sealing ring 9 is also provided inside the feed inlet 4. When the sealing plug 5 is tightened, it will press the sealing ring 9 together, forming a double sealing structure. The feed inlet 4 adopts a stepped design, with a first stepped surface 7 on which the sealing ring 9 is located. A second stepped surface 8 is also provided on the first stepped surface 7. The plug cap 52 of the sealing plug 5 will tightly abut against the second stepped surface 8. This design can ensure that the installation position of the sealing plug 5 is accurate and reliable.

[0028] The locking rotation direction of the sealing plug 5 is designed to be opposite to the working rotation direction of the outer cylinder 1. This reverse design prevents the sealing plug 5 from loosening during equipment operation, ensuring the sealing reliability of the equipment during long-term operation. This evaporator structure is reasonably designed and has excellent sealing performance, making it particularly suitable for applications requiring efficient heat transfer.

Claims

1. An evaporator, comprising an outer cylinder and an inner cylinder disposed inside the outer cylinder, wherein the outer cylinder and the inner cylinder are separate, and a cavity for filling a heat-conducting material is provided between the outer cylinder and the inner cylinder, characterized in that: The outer cylinder wall is provided with a material inlet, which is connected to the cavity.

2. The evaporator according to claim 1, characterized in that: There shall be no fewer than two feed inlets.

3. The evaporator according to claim 1, characterized in that: The feed inlet has a protrusion protruding into the cavity, and the inner wall of the protrusion is threaded.

4. The evaporator according to claim 3, characterized in that: The feed inlet is provided with a sealing plug, which is connected to the inner wall of the boss by threads to seal the feed inlet.

5. The evaporator according to claim 4, characterized in that: The feed inlet is equipped with a sealing ring, which is pressed by a sealing plug to seal the feed inlet.

6. The evaporator according to claim 5, characterized in that: The feed inlet has a first stepped surface, and the sealing ring is disposed on the first stepped surface.

7. The evaporator according to claim 6, characterized in that: The first step surface has a second step surface, and the cap of the sealing plug abuts against the second step surface.

8. The evaporator according to claim 4, characterized in that: The locking direction of the sealing plug is opposite to the rotation direction of the outer cylinder.

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