Evaporator and refrigeration equipment

Abstract

The utility model provides an evaporator and refrigeration equipment. The evaporator comprises a main body which is an annular cylinder, and a plurality of metal straight pipes are arranged in the main body in the length direction parallel to the main body; the first connecting part and the second connecting part are arranged at the two ends of the main body respectively, each connecting part comprises a plurality of metal bent pipes, and each metal bent pipe is configured to connect every two adjacent metal straight pipes to form a closed pipeline; fluid is injected into the pipeline through the pipeline inlet and discharged out of the pipeline through the pipeline outlet. According to the evaporator, the closed pipelines are arranged in a left-right reciprocating manner, so that the refrigerating effects of the evaporator in the horizontal direction are almost the same, and the refrigerating effect is improved.

Description

Technical Field

[0001] This application relates to the field of refrigeration technology, specifically to an evaporator and a refrigeration device. Background Technology

[0002] In the cutting-edge exploration of refrigeration technology, the evaporator plays a crucial role, and the rationality of its structural design directly affects the overall energy efficiency and cooling uniformity of the refrigeration system. Currently, the internal piping of evaporators generally adopts a spiral layout, aiming to optimize heat transfer efficiency by extending the piping path and increasing the heat exchange area, thereby achieving better cooling performance.

[0003] However, this design has gradually revealed a key problem in practical applications: the distribution of cooling effect in the horizontal direction is not ideal, exhibiting significant differences. Specifically, the evaporator inlet region benefits from the superior initial state of the refrigerant, resulting in outstanding cooling effect and significant efficiency; however, as the refrigerant moves along the spiral path towards the outlet, the cooling effect in the outlet region weakens due to fluid dynamics effects and changes in its own state, creating a phenomenon of "strong cooling at the front end and weak cooling at the back end."

[0004] Therefore, developing a new pipeline layout scheme to improve the overall efficiency and cooling uniformity of the refrigeration system has become an important issue that urgently needs to be addressed in the current refrigeration technology field, in order to solve the problem of uneven cooling effect in the existing spiral pipeline layout of evaporators. Summary of the Invention

[0005] To address the aforementioned problems in the prior art, the first aspect of this application provides an evaporator, comprising:

[0006] include:

[0007] The main body is a ring-shaped column, and inside the main body, multiple straight metal tubes are arranged along the length direction parallel to the main body;

[0008] The first connecting component and the second connecting component are respectively disposed at both ends of the main body. The connecting component includes multiple metal bends, which are configured to connect two adjacent metal straight pipes to form a reciprocating closed pipeline.

[0009] The pipe inlet is used to inject fluid into the pipe;

[0010] Pipe outlet, used to discharge fluid through the pipe outlet.

[0011] Optionally, multiple straight metal tubes are evenly distributed within the main body, and the distance between adjacent straight metal tubes is less than or equal to 5 mm.

[0012] Optionally, the pipe inlet and outlet are connected to one end of a straight metal pipe.

[0013] Optionally, both the pipe inlet and the pipe outlet are located on the first connecting component or both are located on the second connecting component.

[0014] Optionally, the first connecting component and the second connecting component are ring-shaped structures, and multiple metal bends, pipe inlets and pipe outlets are fixedly arranged within the ring structure.

[0015] Optionally, the straight metal tubes and the bent metal tubes are made of aluminum.

[0016] Optionally, the aperture size of the straight metal tube and the bent metal tube is between 4 mm and 10 mm.

[0017] Optionally, it also includes a housing made of stainless steel, disposed on the outside of the main body, the first connecting member and the second connecting member, and the inner surface of the housing is in contact with the outer surface of the main body, the first connecting member and the second connecting member.

[0018] Optionally, a thermally conductive material is provided between the outer casing and the main body, the first connecting component, and the second connecting component.

[0019] Optionally, the thermally conductive material is thermally conductive silicone grease.

[0020] Optionally, the ratio of the radius of the inner ring of the annular column to the number of straight metal tubes is between 3 and 7.

[0021] The second aspect of this application provides a refrigeration apparatus, which includes the evaporator of any of the first aspects.

[0022] The above technical solution can achieve at least the following beneficial effects:

[0023] The evaporator provided in this application has a closed pipeline arranged in a left-right reciprocating manner, which can make the cooling effect of the evaporator in the horizontal direction nearly the same, thus improving the cooling effect. Attached Figure Description

[0024] The accompanying drawings are provided to further understand this application and form part of this specification. The drawings illustrate embodiments of the present application and, together with the following description, serve to explain the principles of the application.

[0025] Figure 1 This is a schematic diagram of the evaporator provided in this application;

[0026] Figure 2 A schematic diagram of the evaporator including the outer casing provided for this application;

[0027] Figure 3 A schematic diagram of the structure of an evaporator with an annular connecting component provided in this application;

[0028] Figure 4 A side view of the evaporator provided in this application;

[0029] Figure 5 Top view and side view of the evaporator provided in this application.

[0030] The reference numerals in the figure represent:

[0031] 1: Main body; 2: First connecting component; 3: Second connecting component;

[0032] 4: Pipe inlet; 5: Pipe outlet; 6: Outer casing;

[0033] 11: Straight metal pipe; 21: Bent metal pipe. Detailed Implementation

[0034] In this specification, it will also be understood that when an element is described relative to other elements, such as being "connected" to other elements, that element may be directly connected to or directly coupled to that element, or there may be an intervening third element.

[0035] The present disclosure will now be described more fully below with reference to the accompanying drawings, in which various embodiments are illustrated. However, this application may be implemented in many different ways and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this application will be exhaustive and complete, and will fully convey the scope of this application to those skilled in the art. The same reference numerals denote the same parts throughout the drawings. Furthermore, in the drawings, the thickness, proportions, and dimensions of parts are enlarged for clarity.

[0036] The terminology used herein is for descriptive purposes only and is not intended to be limiting. Unless the context clearly indicates otherwise, the terms “a,” “an,” “the,” and “at least one” as used herein are not intended to limit the quantity but are intended to include both singular and plural forms. For example, unless the context clearly indicates otherwise, “a component” has the same meaning as “at least one component.” “At least one” should not be construed as limited to the quantity “a.” “Or” means “and / or.” The term “and / or” includes any and all combinations of one or more of the associated listed items.

[0037] Unless otherwise specified, all terms used herein, including technical and scientific terms, shall have the same meaning as commonly understood by one of ordinary skill in the art. Terms defined in commonly used dictionaries shall be interpreted as having the same meaning as in the relevant technical context, and shall not be construed as having a formal meaning in an idealized or overly formal sense unless expressly defined in the specification.

[0038] The meaning of “includes” or “contains” specifies a nature, quantity, step, operation, component, or combination thereof, but does not exclude other natures, quantities, steps, operations, components, or combinations thereof.

[0039] In the following description, exemplary embodiments according to this application will be described with reference to the accompanying drawings.

[0040] This application provides an evaporator, such as Figure 1 As shown, it includes:

[0041] The main body 1 is a ring-shaped column, and inside the main body 1, multiple straight metal tubes 11 are arranged along the length direction parallel to the main body 1;

[0042] The first connecting component 2 and the second connecting component 3 are respectively disposed at both ends of the main body 1. The first connecting component 2 and the second connecting component 3 include a plurality of metal bends 21. The metal bends 21 are correspondingly disposed with the metal straight pipes 11 disposed in the main body 1 to form a reciprocating closed pipeline.

[0043] Pipeline inlet 4 is used to inject fluid into the pipeline, and pipeline outlet 5 is used to discharge fluid from the pipeline.

[0044] In an optional embodiment, the pipe inlet 4 and the pipe outlet 5 are connected to one end of the straight metal pipe 11 and are disposed on the first connecting part 2 and / or the second connecting part 3.

[0045] In an optional embodiment, the pipe inlet 4 and the pipe outlet 5 are simultaneously disposed in the first connecting member 2 or the second connecting member 3, so that fluid enters and exits the pipe on the same side of the main body 1.

[0046] The main body 1 is the main structure of the evaporator, and is generally a ring-shaped column with a certain thickness. Multiple straight metal tubes 11 are arranged along the length of the main body 1 within its inner wall space. A first connecting component 2 and a second connecting component 3 are respectively provided at both ends of the main body 1. The first connecting component 2 and the second connecting component 3 are fixedly connected to the main body, preferably by welding. Multiple bent metal tubes 21 are provided within the first connecting component 2 and the second connecting component 3. The positions of the bent metal tubes 21 correspond to the positions of the straight metal tubes 11 within the main body. Specifically, for example... Figure 1 As shown, the metal bend 21 connects two adjacent metal straight pipes 11 at each end, so that the metal straight pipes 11 in the inner wall of the main body 1 are fluidly connected to each other, forming a closed pipeline that travels back and forth along the length of the main body 1. Gas or liquid is injected into the closed pipeline through the pipeline inlet 4 and discharged through the pipeline outlet 5.

[0047] By arranging the piping in a reciprocating manner, specifically a combination of straight metal pipes 11 and bent metal pipes 21, the evaporator's cooling effect in the horizontal direction becomes nearly uniform. This design effectively avoids the problem of poor localized cooling effects that may occur in traditional refrigeration piping systems, thereby improving the overall cooling efficiency and effectiveness of the refrigeration system.

[0048] In some embodiments, optionally, a plurality of straight metal tubes 11 are uniformly distributed within the main body 1, and the spacing between adjacent straight metal tubes 11 is less than or equal to 5 mm. By uniformly distributing a plurality of straight metal tubes 11 within the main body 1, heat is ensured to be uniformly distributed and transferred throughout the entire device. This avoids excessive heat accumulation in local areas, thereby improving overall heat dissipation efficiency. The distribution density of the straight metal tubes 11 is related to the distance between the straight metal tubes 11 and the inner wall of the main body 1. To improve the cooling effect of the evaporator, the distance between the straight metal tubes 11 should be as close as possible, preferably with the straight metal tubes 11 in close contact. Optionally, the cross-sectional shape of the metal tubes is circular, fan-shaped, or arc-shaped, which increases the contact area between the straight tubes 11 and the inner wall of the main body 1, thus improving cooling efficiency.

[0049] In some embodiments, optionally, both the pipe inlet 4 and the pipe outlet 5 are located on the first connecting component 2 or both are located on the second connecting component 3. By simultaneously locating both the pipe inlet 4 and the pipe outlet 5 on either the first connecting component 2 or the second connecting component 3, the arrangement of the connecting components can be flexibly selected according to the site installation conditions or fluid transmission requirements, without requiring significant adjustments to the pipe layout, reducing installation difficulty and cost, and further optimizing the integration of the refrigeration equipment. When maintenance or component replacement of the refrigeration unit is required, if both the pipe inlet 4 and the pipe outlet 5 are located on the same connecting component, the operation can be performed only on that connecting component, avoiding the complexity of simultaneously handling multiple connecting components and improving maintenance efficiency.

[0050] In some embodiments, optionally, such as Figure 2 As shown, the evaporator includes a casing 6, which is made of stainless steel and is located on the outside of the main body 1, the first connecting component 2, and the second connecting component 3. The inner surface of the casing 6 is in contact with the outer surfaces of the main body 1, the first connecting component 2, and the second connecting component 3. In the food industry, evaporators require a stainless steel casing to prevent food from contacting non-standard materials and minimize food safety risks. Optionally, the casing can be made of 316 food-grade steel, which further enhances safety during food processing.

[0051] In some embodiments, such as Figure 3As shown, the first connecting component 2 and the second connecting component 3 are annular structures, and multiple metal bends 21, a pipe inlet 4, and a pipe outlet 5 are fixedly arranged within the annular structure. By fixing multiple metal bends 21 within the first connecting component 2 or the second connecting component 3 of the annular structure, the connection process can be completed in a single operation by welding or gluing. This simplifies the connection process and, compared to welding multiple metal bends separately, further improves the connection accuracy between the straight metal pipe 11 and the metal bends 21, thereby increasing the production yield.

[0052] In some embodiments, the straight metal tube 11 and the bent metal tube 21 are optionally made of aluminum. Compared with copper tubes in traditional evaporators, aluminum tubes have higher plasticity and are less expensive than copper, which can effectively reduce production costs.

[0053] In some embodiments, the aperture size of the straight metal tube 11 and the bent metal tube 21 is optionally between 4 mm and 10 mm. Experiments have shown that setting the aperture size of the straight metal tube 11 and the bent metal tube between 4 mm and 10 mm can produce a better cooling effect with the same refrigerant material and in the same amount of time, effectively improving the cooling efficiency of the evaporator.

[0054] In some embodiments, such as Figure 4As shown, a thermally conductive material is provided between the outer shell 6 and the main body 1, the first connecting component 2, and the second connecting component 3. By providing a thermally conductive material layer between the outer shell 6 and the main body 1, the first connecting component 2, and the second connecting component 3, the thermal conductivity between these components can be enhanced. The thermally conductive material layer acts as a bridge for heat, rapidly transferring heat from the evaporator (usually located inside the main body 1) to the outer shell 6, thereby achieving a more efficient cooling effect. This design helps reduce heat loss and improve the energy efficiency ratio of the refrigeration equipment. The thermally conductive material layer 7 not only has a thermal conductivity function but also plays a role in fixing and supporting to a certain extent. It ensures a tight connection between the outer shell 6 and the main body 1, the first connecting component 2, and the second connecting component 3, reducing vibration and noise caused by loosening or gaps. This structural stability helps extend the service life of refrigeration equipment, such as snow melting machines, and reduces failures caused by loose components. Optionally, the thermally conductive material is thermally conductive silicone grease. Thermally conductive silicone grease can quickly transfer heat and significantly improve heat dissipation. It can effectively eliminate air at the contact surface, increase heat flow channels, and thus significantly improve heat conduction. This means that, with the help of thermal grease, electronic devices can operate at lower temperatures, thereby improving their efficiency and lifespan. Thermal grease has good chemical stability and heat resistance, is not easily volatilized, aged, or lost, and can maintain its thermal conductivity for a long time. This allows thermal grease to maintain a stable working state in various harsh environments, ensuring the continuous and stable operation of electronic devices. Thermal grease has high temperature resistance, maintaining stable thermal conductivity at high temperatures without melting or thermal decomposition. This characteristic makes thermal grease particularly suitable for heat dissipation of electronic devices operating in high-temperature environments.

[0055] In some embodiments, optionally, such as Figure 5 The figures show a side view and a top view of the evaporator. As can be seen from the figures, the thickness of the annular column of the main body 1 is slightly larger than the diameter of the straight metal tube 11. This arrangement can improve heat conduction to a certain extent and improve the cooling effect of the evaporator. Optionally, the distribution of the straight metal tube 11 in the main body 1 can be tilted at a certain angle, such as 10 degrees. This scheme increases the length of the entire sealed pipeline, thereby increasing the amount of refrigerant in the entire cooling process and further improving the cooling effect.

[0056] In an optional embodiment, the ratio of the inner radius of the annular column of the main body 1 to the number of metal straight tubes 11 is between 3 and 7. If the ratio is greater than this, the number of metal straight tubes 11 is too small, resulting in insufficient total length of the sealed piping, thus affecting cooling efficiency. If the ratio is less than this, the diameter of the metal straight tubes 11 is too small, resulting in a large difference between the thickness of the annular column and the diameter of the metal straight tubes 11, leading to excessive heat transfer through a thicker layer, thereby reducing cooling effect.

[0057] Example 1

[0058] The evaporator of this embodiment includes a main body 1, a first connecting component 2, a second connecting component 3, a pipe inlet 4, and a pipe outlet 5.

[0059] The main body 1 is a ring-shaped column, and multiple straight metal tubes 11 are arranged inside it along the length direction parallel to the main body 1. These straight metal tubes 11 are evenly distributed inside the main body 1, and the spacing between adjacent straight metal tubes 11 is precisely controlled within 5 mm to ensure maximum heat exchange efficiency.

[0060] The first connecting component 2 and the second connecting component 3 are respectively disposed at both ends of the main body 1. Both connecting components are annular structures and each contains multiple metal bends 21. These metal bends 21 correspond one-to-one with the straight metal pipes 11 in the main body 1 and are connected by welding or other reliable connection methods to form a closed pipeline that moves back and forth.

[0061] Pipe inlet 4 is located on the first connecting part 2 and is used to inject gas or liquid into this closed pipeline. Correspondingly, pipe outlet 5 is also located on the first connecting part 3 and is used to discharge the gas or liquid that has undergone heat exchange from the pipeline. This design makes the entire evaporator compact and functionally defined.

[0062] To further improve the heat exchange efficiency and service life of the evaporator, both the straight metal tube 11 and the bent metal tube 21 in this embodiment are made of aluminum. This material not only has good thermal conductivity, but also has relatively low cost and is easy to process and manufacture.

[0063] In addition, the sidewall thickness of the main body is 8mm, and the orifice size of the straight metal pipe 11 and the bent metal pipe 21 is 6mm to ensure smooth flow of fluid and sufficient heat exchange in the pipeline.

[0064] Example 2:

[0065] The evaporator in this embodiment is a further improvement on that in Embodiment 1.

[0066] Specifically, in this embodiment, a housing 6 is provided on the outside of the main body 1, the first connecting component 2, and the second connecting component 3. This housing 6 is made of stainless steel, which has good corrosion resistance and mechanical strength. The inner surface of the housing 6 is tightly fitted with the outer surfaces of the main body 1, the first connecting component 2, and the second connecting component 3, thereby forming an integral structure.

[0067] To further improve the heat exchange efficiency of the evaporator, this embodiment also fills the space between the outer shell 6 and the main body 1, the first connecting component 2 and the second connecting component 3 with a thermally conductive material. This thermally conductive material is thermally conductive silicone grease, which can effectively transfer heat from the inside of the evaporator to the outer shell 6, and then dissipate the heat into the environment through the outer shell 6.

[0068] With this design, the evaporator in this embodiment not only has higher heat exchange efficiency, but also has a more robust and durable overall structure, enabling it to adapt to harsher working environments.

[0069] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

[0070] The above description is merely a specific implementation of the embodiments of this application, but the protection scope of the embodiments of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the embodiments of this application should be included within the protection scope of the embodiments of this application. Therefore, the protection scope of the embodiments of this application should be determined by the protection scope of the claims.

Claims

1. An evaporator, characterized in that, include: The main body (1) is a ring-shaped column, and inside the main body (1), a plurality of straight metal tubes (11) are arranged along the length direction parallel to the main body (1); The first connecting component (2) and the second connecting component (3) are respectively disposed at both ends of the main body (1). The first connecting component (2) and the second connecting component (3) include a plurality of metal bends (21). The metal bends (21) are configured to connect two adjacent metal straight pipes (11) to form a reciprocating closed pipeline. The pipeline includes a pipeline inlet (4) and a pipeline outlet (5), the pipeline inlet (4) being configured to inject fluid into the pipeline and the pipeline outlet (5) being configured to discharge the fluid from the pipeline.

2. The evaporator according to claim 1, characterized in that, The plurality of straight metal tubes (11) are evenly distributed within the main body (1), and the distance between adjacent straight metal tubes (11) is less than or equal to 5 mm.

3. The evaporator according to claim 1 or 2, characterized in that, The pipe inlet (4) and the pipe outlet (5) are connected to one end of the straight metal pipe (11).

4. The evaporator according to claim 3, characterized in that, The pipeline inlet (4) and the pipeline outlet (5) are both located on the first connecting component (2) or both located on the second connecting component (3).

5. The evaporator according to claim 4, characterized in that, The first connecting component (2) and the second connecting component (3) are ring-shaped structures, and the plurality of metal bends (21), the pipeline inlet (4) and the pipeline outlet (5) are fixedly arranged within the ring-shaped structure.

6. The evaporator according to claim 1 or 2, characterized in that, The straight metal tube (11) and the bent metal tube (21) are made of aluminum.

7. The evaporator according to claim 6, characterized in that, The diameter of the straight metal tube (11) and the bent metal tube (21) is between 4 mm and 10 mm.

8. The evaporator according to claim 1 or 2, characterized in that, It also includes a housing (6), which is made of stainless steel and is disposed on the outside of the main body (1), the first connecting member (2) and the second connecting member (3), and the inner surface of the housing (6) is in contact with the outer surface of the main body (1), the first connecting member (2) and the second connecting member (3).

9. The evaporator according to claim 8, characterized in that, A thermally conductive material is provided between the outer shell (6) and the main body (1), the first connecting component (2) and the second connecting component (3).

10. The evaporator according to claim 9, characterized in that, The thermally conductive material is thermally conductive silicone grease.

11. The evaporator according to claim 1 or 2, characterized in that, The ratio of the radius of the inner ring of the annular column to the number of the straight metal tubes (11) is between 3 and 7.

12. A refrigeration device, characterized in that, The evaporator includes any one of claims 1 to 11.

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