Portable evaporator with multiple layers of connected coil pipes

By introducing a reflux assembly and filtration system into the multi-coil evaporator, the maintenance difficulties caused by the multi-coil design are solved, achieving efficient, clean, and safe refrigerant circulation and simplifying the maintenance process.

CN224236072UActive Publication Date: 2026-05-15JIANGSU UCHIC AUTO PARTS CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JIANGSU UCHIC AUTO PARTS CO LTD
Filing Date
2025-05-29
Publication Date
2026-05-15

AI Technical Summary

Technical Problem

Existing multi-coil-connected evaporators are difficult to maintain due to the multi-coil design causing the bends to be difficult to clean, leading to the accumulation of internal impurities and requiring specialized equipment.

Method used

The recirculation assembly is designed with a main recirculation pipe and a secondary recirculation pipe, equipped with a circulation pump, a main filter element and a secondary filter element, a main electric valve and a secondary electric valve, to achieve efficient circulation and filtration of the refrigerant and facilitate maintenance.

Benefits of technology

It improves heat exchange efficiency, simplifies maintenance operations, ensures system safety, avoids accidents caused by misoperation, and achieves efficient circulation and clean maintenance of refrigerant.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224236072U_ABST
Patent Text Reader

Abstract

The utility model discloses a portable evaporator with multiple layers of connected coil pipes, and relates to the technical field of evaporators, the portable evaporator with the multiple layers of connected coil pipes comprises multiple layers of evaporators, an input end and an output end are installed on the top surface of the multiple layers of evaporators, and a backflow assembly is arranged on one side of the input end. The backflow assembly comprises a main backflow pipe and a secondary backflow pipe, one end of the main backflow pipe is arranged on the upper portion of the output end, the secondary backflow pipe is connected to the other end of the main backflow pipe, and a circulating pump is installed at the other end of the main backflow pipe. Through driving of the circulating pump, a refrigerant can efficiently circulate in the multi-layer evaporator, and the heat exchange efficiency is improved. The main filter element and the secondary filter element can be detached and replaced, so that a user can conveniently carry out maintenance operation. Due to the design of the backflow assembly, the refrigerant backflow path is clear, and inspection and maintenance are convenient.
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Description

Technical Field

[0001] This utility model relates to the field of evaporator technology, specifically a convenient evaporator with multi-layer coil connection. Background Technology

[0002] When maintaining existing multi-layer coil-connected portable evaporators, it is often necessary to use professional equipment to clean the inner wall of the pipes. Due to the design of the multi-layer coil, some bends are inconvenient to clean and maintain. However, the impurities inside are often due to impurities in the input gas and the accumulation of impurities over a long period of use. In addition, the bends make maintenance inconvenient. Utility Model Content

[0003] This utility model provides a convenient evaporator with multi-layer coil connection, which has the advantages of easy maintenance and cleaning. It solves the problem that when maintaining existing convenient evaporators with multi-layer coil connection, it is often necessary to use professional equipment to clean the inner wall of the pipes. Due to the design of the multi-layer coil, some bends are inconvenient to clean and maintain. However, the impurities inside are often formed by impurities in the input gas and long-term use. In addition, the bends make maintenance inconvenient.

[0004] To facilitate maintenance and cleaning, this utility model provides the following technical solution: a convenient evaporator with multi-layer coil connection, comprising a multi-layer evaporator, wherein an input end and an output end are installed on the top surface of the multi-layer evaporator, and a reflux assembly is provided on one side of the input end, wherein:

[0005] The reflux assembly includes a main reflux pipe and a secondary reflux pipe. One end of the main reflux pipe is located at the upper part of the output end, and the secondary reflux pipe is connected to the other end of the main reflux pipe. A circulation pump is installed at the other end of the main reflux pipe.

[0006] The inner wall of the input end is provided with a main filter element, the bottom end of the circulation pump is connected to an outlet pipe, the inner wall of the outlet pipe is provided with a secondary filter element, and both the main filter element and the secondary return pipe are removable and replaceable.

[0007] As a preferred embodiment of this utility model, a main electric valve is installed at one end of both the input end and the output end, a diversion pipe is installed on the bottom surface of the output end, a gas quality monitor is connected to the lower part of the diversion pipe, and a secondary electric valve is installed at one end of the main return pipe.

[0008] As a preferred embodiment of this utility model, the input end is interconnected with the output end through a multi-layer evaporator, the bottom surface of the input end is fixedly connected to the top surface of the multi-layer evaporator, the bottom surface of the output end is fixedly connected to the bottom surface of the multi-layer evaporator, one end of the main reflux pipe is fixedly connected to one end of the output end, and the inner wall of the main reflux pipe is interconnected with the inner wall of the output end.

[0009] As a preferred embodiment of this utility model, there are three main electric valves. Two of the main electric valves are installed at equal intervals at one end of the output end. One end of the main return pipe is located between the two main electric valves. The top surface of the diversion pipe is fixedly connected to the bottom surface of the output end. The other main electric valve is located at one end of the multilayer evaporator.

[0010] As a preferred embodiment of this utility model, the inner wall of the diverter tube is connected to the inner wall of the output end. The diverter tube is used to cooperate with the gas quality monitor to detect the output gas at the output end. One end of the secondary return tube is fixedly connected to and connected to the bottom end of the input end. The other end of the secondary return tube is fixedly connected to and connected to the other end of the main return tube.

[0011] As a preferred embodiment of this utility model, the other end of the main return pipe is fixedly connected to and passes through the inlet and outlet of the circulation pump, the output end of the circulation pump is fixedly connected to the top end of the outlet pipe, and the main filter element is located in the middle of the input end and can be disassembled and installed by threads.

[0012] As a preferred embodiment of this utility model, the secondary filter element is disposed at the other end of the outlet pipe and can be disassembled and installed by threads. The other end of the outlet pipe is fixedly connected to and communicates with one end of the input end. The secondary electric valve is disposed at the other end of the main return pipe and located above the input end.

[0013] Compared with the prior art, this utility model provides a convenient evaporator with multi-layer coil connection, which has the following advantages:

[0014] This convenient multi-layer coil evaporator, driven by a circulation pump, allows for efficient refrigerant circulation within the multi-layer evaporator, improving heat exchange efficiency. Both the main and secondary filter elements are removable and replaceable, facilitating user maintenance. The recirculation assembly design ensures a clear refrigerant return path, simplifying inspection and repair.

[0015] The inclusion of main and secondary electric valves allows for flexible control of refrigerant flow, enhancing system safety. The start / stop of the circulating pump is interlocked with the opening and closing of the main electric valves to prevent accidents caused by misoperation. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the external structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the external structure of this utility model from another angle;

[0018] Figure 3 This is a schematic diagram of the external structure of the recirculation assembly of this utility model;

[0019] Figure 4 This is a schematic diagram of a partial component structure of the recirculation assembly of this utility model;

[0020] Figure 5 This is a partial structural diagram of the recirculation assembly of this utility model from another angle.

[0021] In the diagram: 1. Multilayer evaporator; 2. Input end; 3. Output end; 4. Reflux assembly; 40. Main reflux pipe; 41. Main electric valve; 42. Gas quality monitor; 43. Diverter pipe; 44. Circulation pump; 45. Outlet pipe; 46. Main filter element; 47. Secondary reflux pipe; 48. Secondary filter element; 49. Secondary electric valve. Detailed Implementation

[0022] 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. Example 1

[0023] Please see Figures 1-2 This utility model discloses a convenient multi-layer coil-connected evaporator, including a multi-layer evaporator 1. An input end 2 and an output end 3 are mounted on the top surface of the multi-layer evaporator 1. A reflux assembly 4 is provided on one side of the input end 2.

[0024] The reflux assembly 4 includes a main reflux pipe 40 and a secondary reflux pipe 47. One end of the main reflux pipe 40 is located at the upper part of the output end 3, and the secondary reflux pipe 47 is connected to the other end of the main reflux pipe 40. A circulation pump 44 is installed at the other end of the main reflux pipe 40.

[0025] The inner wall of the input end 2 is provided with a main filter element 46, and the bottom end of the circulation pump 44 is connected to an outlet pipe 45. The inner wall of the outlet pipe 45 is provided with a secondary filter element 48. Both the main filter element 46 and the secondary return pipe 47 can be disassembled and replaced.

[0026] A main electric valve 41 is installed at one end of both the input end 2 and the output end 3. A diversion pipe 43 is installed on the bottom surface of the output end 3. A gas quality monitor 42 is connected to the lower part of the diversion pipe 43. A secondary electric valve 49 is installed at one end of the main return pipe 40.

[0027] The input end 2 is connected to the output end 3 through the multi-layer evaporator 1. The bottom surface of the input end 2 is fixedly connected to the top surface of the multi-layer evaporator 1. The bottom surface of the output end 3 is fixedly connected to the bottom surface of the multi-layer evaporator 1. One end of the main reflux pipe 40 is fixedly connected to one end of the output end 3. The inner wall of the main reflux pipe 40 is connected to the inner wall of the output end 3.

[0028] The gas quality monitor 42 monitors the gas quality output from the output terminal 3 in real time and feeds the data back to the control system. If the gas quality is substandard, the control system will automatically open the secondary electric valve 49, allowing the substandard refrigerant to flow back to the input terminal 2 through the main return pipe 40 and the secondary return pipe 47. During the return process, the refrigerant undergoes secondary filtration through the secondary filter element 48 in the outlet pipe 45 to ensure the quality of the returned refrigerant. Example 2

[0029] Based on the above embodiment 1, please refer to Figures 3-5 There are three main electric valves 41. Two main electric valves 41 are installed at equal intervals at one end of the output end 3. One end of the main return pipe 40 is located between the two main electric valves 41. The top surface of the diversion pipe 43 is fixedly connected to the bottom surface of the output end 3. The other main electric valve 41 is located at one end of the multilayer evaporator 1.

[0030] The inner wall of the shunt tube 43 is connected to the inner wall of the output end 3. The shunt tube 43 is used to cooperate with the gas quality monitor 42 to detect the gas output from the output end 3. One end of the secondary return tube 47 is fixedly connected to the bottom end of the input end 2 and is connected to it. The other end of the secondary return tube 47 is fixedly connected to the other end of the main return tube 40 and is connected to it.

[0031] The other end of the main return pipe 40 is fixedly connected to and passes through the inlet and outlet of the circulation pump 44. The output end of the circulation pump 44 is fixedly connected to the top end of the outlet pipe 45. The main filter element 46 is located in the middle of the input end 2 and can be disassembled and installed by means of threads.

[0032] The secondary filter element 48 is located at the other end of the outlet pipe 45 and can be disassembled and installed by threads. The other end of the outlet pipe 45 is fixedly connected to one end of the input end 2 and is in communication with it. The secondary electric valve 49 is located at the other end of the main return pipe 40 and is located above the input end 2.

[0033] Open the main electric valve 41 on both the input end 2 and the output end 3 to allow refrigerant to enter the multi-layer evaporator 1. Start the circulation pump 44 to circulate the refrigerant within the multi-layer evaporator 1. As the refrigerant flows out from the output end 3 and passes through the diverter pipe 43, a portion of it is directed to the gas quality monitor 42 for detection.

[0034] The working principle and usage process of this utility model are as follows: Check whether the main electric valve 41 at the input end 2 and output end 3 of the multi-layer evaporator 1 is in the closed state to ensure that the system starts in a safe condition. Check whether the circulating pump 44, secondary electric valve 49, and other equipment in the reflux assembly 4 are normal, ensuring that there are no leaks or blockages. Prepare the tools and materials for replacing the main filter element 46 and secondary filter element 48 as needed, so that replacement can be carried out when necessary.

[0035] System startup: Open the main electric valve 41 on input terminal 2 and output terminal 3 to allow refrigerant to enter the multi-layer evaporator 1. Start the circulation pump 44 to circulate the refrigerant in the multi-layer evaporator 1. The refrigerant flows out from output terminal 3, and as it passes through the diverter pipe 43, a portion of the refrigerant is guided to the gas quality monitor 42 for detection.

[0036] Gas quality detection and reflux: The gas quality monitor 42 monitors the gas quality output from output terminal 3 in real time and feeds the data back to the control system. If the gas quality is substandard, the control system will automatically open the secondary electric valve 49, allowing the substandard refrigerant to flow back to input terminal 2 through the main reflux pipe 40 and the secondary reflux pipe 47. During the reflux process, the refrigerant undergoes secondary filtration through the secondary filter element 48 in the outlet pipe 45 to ensure the quality of the refrigerant flowing back in.

[0037] System Operation and Maintenance: During system operation, regularly check the main filter element 46 and secondary filter element 48 for blockage and replace them as needed. Monitor the operating status of the circulation pump 44 to ensure its normal operation. Adjust system parameters or perform necessary maintenance operations based on feedback from the gas quality monitor 42.

Claims

1. A convenient evaporator with multi-layer coil connection, comprising a multi-layer evaporator (1), wherein an input end (2) and an output end (3) are mounted on the top surface of the multi-layer evaporator (1), characterized in that: A return flow component (4) is provided on one side of the input terminal (2), wherein: The reflux assembly (4) includes a main reflux pipe (40) and a secondary reflux pipe (47). One end of the main reflux pipe (40) is located at the upper part of the output end (3), and the secondary reflux pipe (47) is connected to the other end of the main reflux pipe (40). A circulation pump (44) is installed at the other end of the main reflux pipe (40). The inner wall of the input end (2) is provided with a main filter element (46), the bottom end of the circulation pump (44) is connected to an outlet pipe (45), the inner wall of the outlet pipe (45) is provided with a secondary filter element (48), and both the main filter element (46) and the secondary return pipe (47) are removable and replaceable.

2. The convenient evaporator with multi-layer coil connection according to claim 1, characterized in that: A main electric valve (41) is installed at one end of the input end (2) and the output end (3). A diversion pipe (43) is installed on the bottom surface of the output end (3). A gas quality monitor (42) is connected to the lower part of the diversion pipe (43). A secondary electric valve (49) is installed at one end of the main return pipe (40).

3. A convenient evaporator with multi-layer coil connection according to claim 2, characterized in that: The input end (2) is connected to the output end (3) through the multi-layer evaporator (1). The bottom surface of the input end (2) is fixedly connected to the top surface of the multi-layer evaporator (1). The bottom surface of the output end (3) is fixedly connected to the bottom surface of the multi-layer evaporator (1). One end of the main reflux pipe (40) is fixedly connected to one end of the output end (3). The inner wall of the main reflux pipe (40) is connected to the inner wall of the output end (3).

4. A convenient evaporator with multi-layer coil connection according to claim 2, characterized in that: There are three main electric valves (41). Two of the main electric valves (41) are installed at equal intervals at one end of the output end (3). One end of the main return pipe (40) is located between the two main electric valves (41). The top surface of the diversion pipe (43) is fixedly connected to the bottom surface of the output end (3). The other main electric valve (41) is located at one end of the multilayer evaporator (1).

5. A convenient evaporator with multi-layer coil connection according to claim 2, characterized in that: The inner wall of the diverter (43) is connected to the inner wall of the output end (3). The diverter (43) is used to cooperate with the gas quality monitor (42) to detect the output gas of the output end (3). One end of the secondary return pipe (47) is fixedly connected to the bottom end of the input end (2) and is connected to it. The other end of the secondary return pipe (47) is fixedly connected to the other end of the main return pipe (40) and is connected to it.

6. A convenient evaporator with multi-layer coil connection according to claim 5, characterized in that: The other end of the main return pipe (40) is fixedly connected to the inlet and outlet of the circulation pump (44) and is in communication with it. The output end of the circulation pump (44) is fixedly connected to the top end of the outlet pipe (45). The main filter element (46) is located in the middle of the input end (2) and can be disassembled and installed by threads.

7. A convenient evaporator with multi-layer coil connection according to claim 5, characterized in that: The secondary filter element (48) is located at the other end of the outlet pipe (45) and can be disassembled and installed by threads. The other end of the outlet pipe (45) is fixedly connected to one end of the input end (2) and is in communication with it. The secondary electric valve (49) is located at the other end of the main return pipe (40) and is located above the input end (2).