Air conditioner pipe leak testing and drying machine

Abstract

This utility model relates to an air conditioning pipe leak test and drying machine, belonging to the field of air conditioning pipe technology. It includes a conveyor line and a drying assembly. The conveyor line transports the air conditioning pipes through the drying assembly, which dries the pipes. The drying assembly includes a drying hood, an upper plate, a circulating fan, heat pipes, and guide plates. The upper plate is installed inside the drying hood, and the circulating fan is installed on top of the drying hood. An impeller is located between the upper plate and the drying hood, driven by the circulating fan. Multiple heat pipes are mounted on the upper plate, and guide plates are located on both sides of the upper plate. The conveyor line is located below the upper plate and blows air along the guide plates towards the air conditioning pipes for drying. When encountering air conditioning pipes from different batches (i.e., those of varying sizes and shapes), the air outlets can be adjusted slightly by adjusting a push rod for better drying. The overall design utilizes a guiding and adjusting mechanism to improve work efficiency.

Description

Technical Field

[0001] This utility model belongs to the field of air conditioning pipe technology, specifically an air conditioning pipe leak test and drying machine. Background Technology

[0002] In the air conditioning manufacturing industry, air conditioning pipes, as key components for refrigerant flow, directly affect the operating efficiency and safety of air conditioners due to their sealing performance. During the production process, air conditioning pipes must undergo water pressure or air pressure leak testing to ensure there are no leaks. If residual moisture inside the pipe is not completely removed after the leak test, it can lead to defects such as porosity and slag inclusions in subsequent welding processes, reducing joint strength. Furthermore, residual moisture can mix with the refrigerant during air conditioner operation, potentially causing compressor ice blockage, reducing the air conditioning's cooling capacity by 15%-20%, or even damaging the equipment. Therefore, the drying process after leak testing is a crucial step in ensuring the quality of air conditioning pipes.

[0003] Existing air conditioning pipe drying equipment suffers from significant efficiency deficiencies, making it difficult to meet the demands of large-scale production. Traditional drying methods mostly employ hot air circulation or natural air drying: natural air drying takes 6-8 hours and is greatly affected by ambient humidity (drying time extends to over 12 hours when humidity > 60%), making it unsuitable for production line cycles; while hot air drying equipment blows heated air (50-80℃) onto the pipes, the hot air flows along a single path within the pipe, especially for complex air conditioning pipes with many bends and branches (such as evaporator connection pipes), where dead airflow zones easily form at the corners, resulting in a moisture residue rate as high as 10%-15%.

[0004] To improve drying efficiency, some equipment increases the temperature (>100℃) or extends the drying time (>30 minutes). However, high temperatures can cause oxidation of the coating on the air conditioning pipe surface, affecting corrosion resistance. Prolonged drying increases the processing cycle for a single pipe by more than 50%, reducing the production line cycle time from 30 seconds / piece to 45 seconds / piece, and decreasing daily capacity by 30%. Furthermore, existing equipment has poor adaptability to air conditioning pipes of different diameters and lengths, requiring manual adjustment of the air vent position and airflow speed, with changeover time exceeding 20 minutes, further reducing production efficiency. Statistics show that the bottleneck in air conditioning pipe production caused by insufficient drying efficiency reduces the overall efficiency (OEE) of the production line by 20%-25%, necessitating the development of efficient and adaptable drying technology to solve the problem of rapid drying of air conditioning pipes after leak testing. Utility Model Content

[0005] The purpose of this invention is to solve the problems mentioned in the background.

[0006] To achieve the above objectives, the technical solution provided by this utility model is as follows:

[0007] This utility model discloses an air conditioning pipe leak test and drying machine, which includes a conveyor line and a drying assembly. The conveyor line transports the air conditioning pipes through the drying assembly, which dries the air conditioning pipes. The drying assembly includes a drying hood, an upper plate, a circulating fan, heat pipes, and guide plates. The upper plate is installed inside the drying hood, and the circulating fan is installed on the top of the drying hood. An impeller is provided between the upper plate and the drying hood, and the circulating fan drives the impeller. Multiple heat pipes are provided on the upper plate, and guide plates are provided on both sides of the upper plate. The conveyor line is located below the upper plate.

[0008] Preferably, the guide plate includes a fixed arc plate and an air outlet. One end of the fixed arc plate is connected to the upper plate, and the other end is rotatably connected to the air outlet. The air outlet is directly opposite the air conditioning pipe on the conveyor line.

[0009] Preferably, the air outlet is provided with a slot, the slot is provided with an adjusting rod, the top of the adjusting rod extends out of the drying cover, the drying cover is provided with an adjusting push rod, and the adjusting push rod is connected to the adjusting rod.

[0010] Preferably, the heat pipe includes a ring pipe and a U-pipe, with the ring pipe arranged below the impeller and the U-pipe arranged at the outlet of the impeller.

[0011] Preferably, the air outlet is funnel-shaped, and rubber curtains are provided at both the inlet and outlet of the drying hood.

[0012] Preferably, the inner sides of the drying hood are provided with partitions, and high-temperature cotton is provided between the partitions and the drying hood.

[0013] Compared with the prior art, the technical solution provided by this utility model has the following advantages:

[0014] This utility model relates to an air conditioning pipe leak test and drying machine. The air conditioning pipes to be dried are placed on a conveyor line and transported to the drying assembly. A circulating fan drives the impeller to rotate, causing the air to pass through the ring pipe and U-pipe in sequence for thorough heating. Finally, the air is blown onto the guide plate and blown along the guide plate to the air conditioning pipes for drying. When encountering air conditioning pipes from different batches, i.e., those of different sizes and shapes, the air outlet can be adjusted by adjusting the push rod to make small-range adjustments for better drying. The whole machine adopts a guiding and adjusting method to improve work efficiency. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of the air conditioning pipe leak tester and dryer of this utility model.

[0016] Figure 2 This is a schematic diagram of the structure of the air conditioning pipe leak test and drying machine of this utility model.

[0017] Explanation of the labels in the diagram:

[0018] 100. Conveyor line;

[0019] 200. Drying assembly; 210. Drying hood; 211. Partition; 220. Upper plate; 230. Circulating fan; 240. Heat pipe; 241. Circulating pipe; 242. U-tube; 250. Guide plate; 251. Fixed arc plate; 252. Air outlet; 253. Slot; 254. Adjusting rod; 255. Adjusting push rod; 260. Impeller;

[0020] 300. Air conditioning fittings. Detailed Implementation

[0021] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of the present application.

[0022] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate for the embodiments of this application described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0023] In this application, the terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "middle," "vertical," "horizontal," "lateral," and "longitudinal" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing this application and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation.

[0024] Furthermore, in addition to indicating location or positional relationship, some of the aforementioned terms may also have other meanings. For example, the term "above" may also be used in some cases to indicate a certain dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

[0025] Furthermore, the terms "installation," "setup," "equipped with," "connection," "linking," and "socketing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium, or an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

[0026] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments. Example

[0027] See attached document Figure 1-2 The air conditioning pipe leak test dryer of this embodiment includes a conveyor line 100 and a drying assembly 200. The conveyor line 100 conveys the air conditioning pipe 300 through the drying assembly 200. The drying assembly 200 dries the air conditioning pipe 300. The drying assembly 200 includes a drying cover 210, an upper plate 220, a circulating fan 230, heat pipes 240, and a guide plate 250. The upper plate 220 is installed inside the drying cover 210. The circulating fan 230 is installed on the top of the drying cover 210. An impeller 260 is provided between the upper plate 220 and the drying cover 210. The circulating fan 230 drives the impeller 260. Multiple heat pipes 240 are provided on the upper plate 220. Guide plates 250 are provided on both sides of the upper plate 220. The conveyor line 100 is located below the upper plate 220.

[0028] The guide plate 250 in this embodiment includes a fixed arc plate 251 and an air outlet 252. One end of the fixed arc plate 251 is connected to the upper plate 220, and the other end is rotatably connected to the air outlet 252. The air outlet 252 is directly opposite the air conditioning pipe 300 on the conveyor line 100.

[0029] In this embodiment, the air outlet 252 is provided with a slot 253, the slot 253 is provided with an adjusting rod 254, the top of the adjusting rod 254 extends out of the drying cover 210, the drying cover 210 is provided with an adjusting push rod 255, and the adjusting push rod 255 is connected to the adjusting rod 254.

[0030] The heat pipe 240 in this embodiment includes a ring pipe 241 and a U-pipe 242. The ring pipe 241 is arranged below the impeller 260, and the U-pipe 242 is arranged at the outlet of the impeller 260.

[0031] In this embodiment, the air outlet 252 is trumpet-shaped, and rubber curtains are provided at both the inlet and outlet of the drying cover 210.

[0032] In this embodiment, the drying cover 210 has partitions 211 on both sides, and high-temperature cotton is provided between the partitions 211 and the drying cover 210.

[0033] Working principle: The air conditioning pipes 300 to be dried are placed on the conveyor line 100 and conveyed into the drying assembly 200. The circulating fan 230 drives the impeller 260 to rotate, so that the air passes through the ring pipe 241 and the U-pipe 242 in sequence, is fully heated, and finally blows into the guide plate 250, and blows along the guide plate 250 to the air conditioning pipes 300 for drying. When encountering air conditioning pipes 300 from different batches, i.e., different sizes and shapes, the air outlet can be adjusted by adjusting the push rod 255 to make small-range adjustments for better drying. The whole process adopts the form of guiding and adjusting to improve work efficiency.

[0034] The above-described embodiments are merely illustrative of certain implementations of this utility model, and their descriptions are relatively specific and detailed. However, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these modifications and improvements all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. An air conditioning pipe leak tester and dryer, characterized in that: The system includes a conveyor line (100) and a drying assembly (200). The conveyor line (100) transports the air conditioning pipes (300) through the drying assembly (200), which dries the air conditioning pipes (300). The drying assembly (200) includes a drying hood (210), an upper plate (220), a circulating fan (230), a heat pipe (240), and a guide plate (250). The upper plate (220) is mounted on the drying hood. Inside (210), the circulating fan (230) is installed on the top of the drying hood (210), and an impeller (260) is provided between the upper plate (220) and the drying hood (210). The circulating fan (230) drives the impeller (260). Multiple heat pipes (240) are provided on the upper plate (220). Guide plates (250) are provided on both sides of the upper plate (220). The conveyor line (100) is located below the upper plate (220).

2. The air conditioning pipe leak test dryer according to claim 1, characterized in that: The guide plate (250) includes a fixed arc plate (251) and an air outlet (252). One end of the fixed arc plate (251) is connected to the upper plate (220), and the other end is rotatably connected to the air outlet (252). The air outlet (252) is directly opposite the air conditioning pipe (300) on the conveyor line (100).

3. The air conditioning pipe leak test dryer according to claim 2, characterized in that: The air outlet (252) is provided with a slot (253), the slot (253) is provided with an adjusting rod (254), the top of the adjusting rod (254) extends out of the drying cover (210), the drying cover (210) is provided with an adjusting push rod (255), and the adjusting push rod (255) is connected to the adjusting rod (254).

4. The air conditioning pipe leak test dryer according to claim 1, characterized in that: The heat pipe (240) includes a ring pipe (241) and a U-pipe (242), the ring pipe (241) being arranged below the impeller (260) and the U-pipe (242) being arranged at the outlet of the impeller (260).

5. The air conditioning pipe leak test dryer according to claim 2, characterized in that: The air outlet (252) is trumpet-shaped, and rubber curtains are provided at both the inlet and outlet of the drying cover (210).

6. The air conditioning pipe leak test dryer according to claim 1, characterized in that: The drying cover (210) has partitions (211) on both sides, and high-temperature cotton is provided between the partitions (211) and the drying cover (210).

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