Evaporator and refrigeration equipment

Abstract

The invention provides an evaporator which 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] The present application relates to the field of refrigeration technology, and in particular, to an evaporator and a refrigeration device. Background Art

[0002] In the frontier exploration of refrigeration technology, the evaporator plays a vital role. The rationality of its structural design is directly related to the overall energy efficiency and refrigeration uniformity of the refrigeration system. At present, the internal pipes of the evaporator generally adopt a spiral layout, which aims to optimize the heat transfer efficiency by extending the pipe path and increasing the heat exchange area, thereby achieving better refrigeration results.

[0003] However, this design gradually revealed a key problem in practical applications: in the horizontal direction, the distribution of the cooling effect is not ideal, showing significant differences. Specifically, the evaporator inlet area benefits from the superiority of the initial state of the refrigerant, with outstanding cooling effect and significant efficiency; but as the refrigerant moves along the spiral path to the outlet, affected by the fluid dynamics effect and its own state changes, the cooling effect of the outlet area weakens, forming a phenomenon of "strong cooling at the front end and weak cooling at the end".

[0004] Therefore, in order to address the uneven cooling effect of the existing evaporator spiral pipe layout, developing a new pipe layout solution to improve the overall efficiency and cooling uniformity of the refrigeration system has become an important issue that needs to be urgently addressed in the current refrigeration technology field. Summary of the invention

[0005] In order to solve the above problems existing in the prior art, the present application provides an evaporator in a first aspect, comprising:

[0006] include:

[0007] The main body is an annular column, and a plurality of metal straight tubes are arranged inside the main body along the length direction parallel to the main body;

[0008] The first connecting component and the second connecting component are respectively arranged at two ends of the main body, and the connecting component includes a plurality of metal bent pipes, and the metal bent pipes are configured to connect two adjacent metal straight pipes to form a reciprocating closed pipeline;

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

[0010] The pipeline outlet is used to discharge the fluid through the pipeline outlet.

[0011] Optionally, the plurality of metal straight tubes are evenly distributed in the main body, and a spacing between adjacent metal straight tubes is less than or equal to 5 mm.

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

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

[0014] Optionally, the first connecting component and the second connecting component are annular structures, and a plurality of metal elbows, pipeline inlets and pipeline outlets are fixedly arranged in the annular structures.

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

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

[0017] Optionally, it also includes a shell, which is made of stainless steel and is arranged on the outside of the main body, the first connecting component and the second connecting component, and the inner surface of the shell is in contact with the outer surfaces of the main body, the first connecting component and the second connecting component.

[0018] Optionally, a heat conductive material is provided between the housing 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 cylinder to the number of the metal straight tubes is between 3 and 7.

[0021] A second aspect of the present application provides a refrigeration device, the refrigeration device comprising the evaporator in any one of the first aspect.

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

[0023] The present application provides an evaporator, in which the closed pipelines are arranged in a left-right reciprocating manner, so that the refrigeration effect of the evaporator in the horizontal direction can be nearly the same, which is beneficial to improving the refrigeration effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The accompanying drawings are used to provide a further understanding of the present application and constitute a part of this specification. The accompanying drawings illustrate embodiments of the present application and together with the following description are used to explain the principle of the present application.

[0025] Figure 1 A schematic diagram of the structure of the evaporator provided for this application;

[0026] Figure 2 A schematic diagram of the structure of an evaporator including a shell provided in the present application;

[0027] Figure 3 A schematic diagram of the structure of an evaporator with a ring-shaped connecting member provided in the present application;

[0028] Figure 4 A side view of an evaporator provided for this application;

[0029] Figure 5 A top view and a side view of the evaporator provided for this application.

[0030] The reference numerals in the figure represent respectively:

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

[0032] 4: Pipeline inlet; 5: Pipeline outlet; 6: Shell;

[0033] 11: Metal straight pipe; 21: Metal bent pipe. DETAILED DESCRIPTION

[0034] In the present specification, it will also be understood that when an element is described as being “connected to” relative to another element, the one element may be directly connected or coupled to the one element, or an intervening third element may also be present.

[0035] The present disclosure will now be described more fully below with reference to the accompanying drawings, in which various embodiments are shown. However, the present application can be implemented in many different ways and should not be construed as being limited to the embodiments set forth herein. On the contrary, these embodiments are provided so that the present application will be exhaustive and complete, and will fully convey the scope of the present application to those skilled in the art. The same reference numerals throughout the text represent the same components. Furthermore, in the accompanying drawings, the thickness, ratios, and sizes of the components are exaggerated for clarity of illustration.

[0036] The terms used herein are only used for the purpose of describing specific embodiments and are not intended to be limiting. Unless the context clearly indicates otherwise, "one", "the", "at least one" as used herein do not represent a limitation on quantity, but are intended to include both the singular and the plural. 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 interpreted as being limited to the number "one". "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 defined, all terms used herein, including technical and scientific terms, have the same meanings as those generally understood by those skilled in the art. Terms defined in commonly used dictionaries should be interpreted as having the same meanings as in the relevant technical context, and unless clearly defined in the specification, these terms are not interpreted as having formal meanings in an idealized or overly formal sense.

[0038] The meaning of “include” or “comprising” specifies properties, quantities, steps, operations, components or a combination thereof, but does not exclude other properties, quantities, steps, operations, components or a combination thereof.

[0039] Hereinafter, exemplary embodiments according to the present application will be described with reference to the accompanying drawings.

[0040] The present application provides an evaporator, such as Figure 1 As shown, including:

[0041] The main body 1 is an annular cylinder, and a plurality of metal straight tubes 11 are arranged inside the main body 1 along a length direction parallel to the main body 1;

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

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

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

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

[0046] The main body 1 is the main structure of the evaporator, which is an annular cylinder with a certain thickness. In the inner wall space of the main body 1, a plurality of metal straight tubes 11 are arranged along the length direction parallel to the main body 1. A first connecting part 2 and a second connecting part 3 are respectively arranged at both ends of the main body 1. The first connecting part 2 and the second connecting part 3 are fixedly connected to the main body, and the connection method is preferably welding; a plurality of metal bent tubes 21 are arranged in the first connecting part 2 and the second connecting part 3. The setting position of the metal bent tube 21 corresponds to the position of the metal straight tube 11 arranged in the main body. Specifically, Figure 1 As shown, the metal elbow 21 connects two adjacent metal straight tubes 11 at both ends, so that the metal straight tubes 11 in the inner wall of the main body 1 are fluidically connected to each other, forming a closed pipeline that goes back and forth along the length direction parallel to the main body 1. Gas or liquid is injected into the above-mentioned closed pipeline through the pipeline inlet 4 and discharged through the pipeline outlet 5.

[0047] By arranging the pipes in a reciprocating manner, that is, the combination design of the metal straight pipe 11 and the metal curved pipe 21, the evaporator has a nearly uniform refrigeration effect in the horizontal direction. This design effectively avoids the problem of poor local refrigeration effect that may occur in traditional refrigeration pipes, thereby improving the refrigeration efficiency and effect of the entire refrigeration system.

[0048] In some embodiments, optionally, a plurality of metal straight tubes 11 are evenly distributed in the main body 1, and the spacing between adjacent metal straight tubes 11 is less than or equal to 5 mm. By evenly distributing a plurality of metal straight tubes 11 in the main body 1, it is ensured that heat can be evenly distributed and transferred throughout the device. This avoids excessive accumulation of heat in local areas, thereby improving the overall heat dissipation efficiency. The distribution density of the metal straight tubes 11 is related to the distance between the metal straight tubes 11 and the inner wall of the main body 1. In order to improve the refrigeration effect of the evaporator, the distance between the metal straight tubes 11 should be as long as possible, and preferably the metal straight tubes 11 are tightly fitted. Optionally, the cross-section of the metal tube is circular, fan-shaped or arc-shaped, so that the area of ​​fit between the straight tubes 11 and the inner wall of the main body 1 is increased, which is beneficial to improving the refrigeration efficiency.

[0049] In some embodiments, optionally, the pipeline inlet 4 and the pipeline outlet 5 are both arranged on the first connecting component 2 or both arranged on the second connecting component 3. By arranging the pipeline inlet 4 and the pipeline outlet 5 on the first connecting component 2 or the second connecting component 3 at the same time, the arrangement of the connecting components can be flexibly selected according to the on-site installation conditions or fluid transmission requirements, without the need to make major adjustments to the pipeline layout, thereby reducing the installation difficulty and cost, and further optimizing the integration of the refrigeration equipment. When it is necessary to maintain or replace parts of the refrigeration device, if the pipeline inlet 4 and the pipeline outlet 5 are both located on the same connecting component, only the connecting component can be operated, avoiding the complexity of handling multiple connecting components at the same time and improving maintenance efficiency.

[0050] In some embodiments, optionally, Figure 2 As shown, the evaporator includes a housing 6, which is made of stainless steel and is arranged outside the main body 1, the first connecting part 2 and the second connecting part 3, and the inner surface of the housing 6 is in contact with the outer surfaces of the main body 1, the first connecting part 2 and the second connecting part 3. In the field of food, the evaporator needs to be equipped with a housing made of stainless steel to avoid contact between food and non-standard materials and minimize food safety hazards. Optionally, the housing is made of 316 food-grade steel, which is conducive to improving safety during food processing.

[0051] In some embodiments, Figure 3As shown, the first connecting part 2 and the second connecting part 3 are annular structures, and a plurality of metal elbows 21, a pipeline inlet 4, and a pipeline outlet 5 are fixedly arranged in the annular structure. By fixing a plurality of metal elbows 21 in the first connecting part 2 or the second connecting part 3 of the annular structure, the connection process can be completed by welding or gluing in only one connection operation. While simplifying the connection process, compared with the method of welding a plurality of metal elbows separately, this method further improves the connection accuracy of the metal straight pipe 11 and the metal elbow 21, and improves the production yield rate.

[0052] In some embodiments, the metal straight tube 11 and the metal curved tube 21 are optionally made of aluminum. Compared with the copper tube in the traditional evaporator, the aluminum tube has higher plasticity, and the cost of aluminum is lower than that of copper, which can effectively reduce the production cost.

[0053] In some embodiments, the aperture size of the metal straight tube 11 and the metal curved tube 21 is optionally between 4 mm and 10 mm. Experiments have shown that when the aperture size of the metal straight tube 11 and the metal curved tube is set between 4 mm and 10 mm, a better refrigeration effect can be produced under the same refrigeration material and the same time, effectively improving the refrigeration efficiency of the evaporator.

[0054] In some embodiments, Figure 4As shown, a heat-conducting material is provided between the housing 6 and the main body 1, the first connecting part 2 and the second connecting part 3. By providing a heat-conducting material layer between the housing 6 and the main body 1, the first connecting part 2 and the second connecting part 3, the heat conduction capacity between these parts can be enhanced. The heat-conducting material layer, as a heat bridge, can quickly transfer heat from the evaporator (usually located inside the main body 1) to the housing 6, thereby achieving a more efficient cooling effect. This design helps to reduce heat loss and improve the energy efficiency ratio of the refrigeration equipment. The heat-conducting material layer 7 not only has a heat-conducting function, but also plays a role of fixing and supporting to a certain extent. It ensures a tight connection between the housing 6 and the main body 1, the first connecting part 2 and the second connecting part 3, and reduces vibration and noise caused by looseness or gaps. This structural stability helps to extend the service life of refrigeration equipment, such as a snow melter, and reduce failures caused by loose components. Optionally, the heat-conducting material is a thermally conductive silicone grease. The thermally conductive silicone grease can quickly transfer heat and significantly improve the heat dissipation effect. It can effectively eliminate air on the contact surface and increase the heat flow channel, thereby significantly improving heat conduction. This means that with the help of thermal grease, electronic devices can work at lower temperatures, thereby improving their efficiency and service life. Thermal grease has good chemical stability and heat resistance, is not easy to volatilize, age or lose, 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 equipment. Thermal grease has high temperature resistance and can maintain a stable thermal conductivity in high temperature environments without melting or thermal decomposition. This feature makes thermal grease particularly suitable for heat dissipation of electronic equipment in high-temperature working environments.

[0055] In some embodiments, optionally, Figure 5 As shown, it is a side view and a top view of the evaporator. It can be seen from the figure that the thickness of the annular column of the main body 1 is slightly larger than the diameter of the metal straight tube 11. This setting can improve heat conduction to a certain extent and improve the refrigeration effect of the evaporator. Optionally, the distribution of the metal straight tube 11 in the main body 1 can be tilted at a certain angle, such as 10 degrees; this solution will increase the length of the entire sealed pipeline, thereby increasing the amount of refrigeration fluid in the entire refrigeration process, and further improving the refrigeration effect.

[0056] In an optional embodiment, the ratio of the inner ring radius of the annular column of the main body 1 to the number of the metal straight tubes 11 is between 3 and 7. When the ratio is greater than this value, the number of the metal straight tubes 11 is too small, so that the total length of the sealed pipeline is insufficient, thereby affecting the refrigeration efficiency. When the ratio is less than this value, the diameter of the metal straight tube 11 is too small, so that the size difference between the thickness of the annular column and the diameter of the metal straight tube 11 is too large, and the thickness through which heat is conducted is too large, thereby reducing the refrigeration 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 pipeline inlet 4 and a pipeline outlet 5 .

[0059] The main body 1 is an annular cylinder, and a plurality of metal straight tubes 11 are arranged inside the main body 1 along the length direction parallel to the main body 1. These metal straight tubes 11 are evenly distributed in the main body 1, and the spacing between adjacent metal straight tubes 11 is precisely controlled within 5mm to ensure the maximum heat exchange efficiency.

[0060] The first connecting component 2 and the second connecting component 3 are respectively arranged at both ends of the main body 1. Both connecting components are annular structures, and each comprises a plurality of metal elbows 21. These metal elbows 21 correspond to the metal straight pipes 11 in the main body 1 one by one, and are connected by welding or other reliable connection methods, thereby forming a closed pipeline that goes back and forth left and right.

[0061] The pipeline inlet 4 is arranged on the first connecting part 2, and is used to inject gas or liquid into the closed pipeline. Correspondingly, the pipeline outlet 5 is also arranged on the first connecting part 3, and is used to discharge the gas or liquid after heat exchange from the pipeline. Such a design makes the structure of the whole evaporator compact and the function clear.

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

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

[0064] Example 2

[0065] The evaporator of this embodiment is further improved on the basis of Embodiment 1.

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

[0067] In order to further improve the heat exchange efficiency of the evaporator, the present embodiment also fills a heat conductive material between the shell 6 and the main body 1, the first connecting part 2 and the second connecting part 3. The heat conductive material is a heat conductive silicone grease, which can effectively transfer heat from the inside of the evaporator to the shell 6, and dissipate the heat to the environment through the shell 6.

[0068] Through such a design, the evaporator of this embodiment not only has a higher heat exchange efficiency, but also its overall structure is more solid and durable, and can adapt to more severe working environments.

[0069] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

[0070] The above description is only a specific implementation of the embodiment of the present application, but the protection scope of the embodiment of the present application is not limited thereto. Any technician familiar with the technical field can easily think of changes or replacements within the technical scope disclosed in the embodiment of the present application, which should be included in the protection scope of the embodiment of the present application. Therefore, the protection scope of the embodiment of the present application shall be based on the protection scope of the claims.

Claims

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

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

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

4. The evaporator according to claim 3, characterized in that The pipeline inlet (4) and the pipeline outlet (5) are both arranged on the first connecting component (2) or 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 annular structures, and the plurality of metal elbows (21), the pipeline inlet (4) and the pipeline outlet (5) are fixedly arranged in the annular structures.

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

7. The evaporator according to claim 6, characterized in that The hole diameters of the metal straight tube (11) and the metal curved tube (21) are between 4 mm and 10 mm.

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

9. The evaporator according to claim 8, characterized in that A heat-conducting material is provided between the housing (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 heat-conducting material is heat-conducting 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 cylinder to the number of the metal straight tubes (11) is between 3 and 7.

12. A refrigeration device, characterized in that: The evaporator comprises the evaporator according to any one of claims 1 to 11.

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