A compressor suction pipe leak detection device

Abstract

The utility model discloses a compressor suction pipe leak hunting device, including support stand, the both ends horizontal sliding of support stand one side has the first sliding block, the first sliding block one side overhanging extension fixed limit disc, two the opposite side of limit disc has location plug and be used for to suction pipe end closed clamping air bag subassembly respectively, the inside of location plug is hollow, and the air bag ring is filled with gas by using air pressure pump, thereby will suction pipe both ends block seal, subsequently start hot -air infusion subassembly, through the pipeline and inject high pressure high temperature air in location plug and suction pipe inside, at the same time, under the cooperation of position adjusting assembly, second sliding block etc.

Description

Technical Field

[0001] This utility model relates to the field of air conditioner compressor testing technology, specifically a compressor suction pipe leak detection device. Background Technology

[0002] The compressor suction pipe is a crucial conduit connecting the evaporator and the compressor. With a relatively large diameter, it primarily transports low-temperature, low-pressure gaseous refrigerant to the compressor for compression. In current compressor suction pipe manufacturing, quality inspection of the suction pipe directly impacts the subsequent use of the compressor. Related technologies, such as the compressor suction pipe leak detection device described in patent CN219284602U, employ a detection structure where a detection ring is fitted around the suction pipe and moves along it during detection. This allows for comprehensive leak detection of the entire suction pipe. When the airflow sensor detects leaking gas, a warning light flashes and a loud voice announcement is made, facilitating the identification of the leak location and minimizing blind spots in leak detection, thus significantly improving the device's usability.

[0003] While the above technical solution can detect leaks in the suction tube, it requires the pressure gauge to wait for a certain period of time and report whether the pressure is decreasing before moving the detection ring to check for leaks in the suction tube. Obviously, this detection method has the disadvantages of long waiting time and low detection efficiency. It is not very practical, especially for mass production processes. Utility Model Content

[0004] The purpose of this section is to outline some aspects of the embodiments of this utility model and to briefly introduce some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be used to limit the scope of this utility model.

[0005] Therefore, the purpose of this utility model is to provide a compressor suction pipe leak detection device to solve the problem that the existing compressor suction pipe leak detection device mentioned in the background art requires the pressure gauge to wait for a certain period of time and report whether the pressure is decreasing before moving the detection ring to detect the leak point in the suction pipe. Obviously, this detection method has the disadvantages of long waiting time and low detection efficiency. Especially for mass production, this detection method is not very practical.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a compressor suction pipe leak detection device, comprising a support base, with two horizontally sliding first sliders on one side of the support base, and a limiting plate extending and fixed on one side of the first sliders. Each of the two limiting plates has a positioning plug and an airbag assembly for sealing and clamping the end of the suction pipe. The positioning plug is hollow inside and also includes a hot air injection assembly for injecting high-pressure hot air into the cavity of the positioning plug. A second slider and a position adjustment assembly for moving the second slider left and right are horizontally sliding on the upper part of the support base. A detection ring coaxially arranged with the positioning plug is extended and fixed on one side of the second slider, and multiple thermal imaging monitors are arranged around the periphery of the detection ring.

[0007] As a preferred embodiment of the compressor suction pipe leak detection device of this utility model, an airbag ring is fixedly sleeved on the outer periphery of the positioning plug, and a miniature air pump connected to the airbag ring is fixed on the opposite side of the positioning plug. The diameter of the limiting plate is larger than the outer diameter of the end of the suction pipe.

[0008] As a preferred embodiment of the compressor suction pipe leak detection device of this utility model, the hot air delivery assembly includes an air pump, a resistance wire heater connected to the input end of the air pump, an air outlet pipe connected to the output end of the air pump, an air delivery hose with one end connected to the free end of the air outlet pipe and the other end connected to the positioning plug, and an air pressure gauge installed on the air outlet pipe.

[0009] As a preferred embodiment of the compressor suction pipe leak detection device of this utility model, the support stand has a linear slide groove on one side that slides and matches the first slider, the first slider is threadedly connected to a locking screw on one side, and the first slider also has a connecting rod frame that is fixedly connected to the limiting plate on one side.

[0010] The inner end of the locking screw abuts against the inner sidewall of a vertical section of the linear slide groove.

[0011] In a preferred embodiment of the compressor suction pipe leak detection device of this utility model, the second slider includes a connecting rod frame two that is fixedly connected to the detection ring on one side.

[0012] As a preferred embodiment of the compressor suction pipe leak detection device of this utility model, the support base has a linear groove on one side that slides and matches the second slider.

[0013] The position adjustment assembly includes a ball nut fixed to the inside of the second slider, a lead screw threaded to the inside of the ball nut and rotatably mounted at both ends to the inside of the second linear slide groove, and a motor fixed to one side of the support stand for driving the lead screw to rotate axially.

[0014] In a preferred embodiment of the compressor suction pipe leak detection device of this utility model, the bottom of the support stand is further fixed with a base, and the hot air delivery assembly is placed on the base.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows: When using this compressor suction pipe leak detection device, firstly, the two ends of the suction pipe are respectively connected and inserted into the outside of the positioning plug, and the air pressure pump is used to inflate the airbag ring to seal both ends of the suction pipe. Then, the hot air delivery component is activated to inject high-pressure, high-temperature air into the positioning plug and the inside of the suction pipe through the pipeline. At the same time, with the cooperation of the position adjustment component, the second slider, etc., the detection ring is moved along the length direction and outer periphery of the suction pipe, and the thermal imaging monitor is used to monitor and capture whether there is flowing infrared radiation on the outer periphery of the suction pipe. Once the suction pipe leaks, the hot air flow and the corresponding infrared radiation will be detected in time. After receiving feedback, the control system will immediately trigger an alarm reminder. The whole detection process is simple and efficient, without waiting in the middle, and the leak detection efficiency is further improved. Attached Figure Description

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

[0017] Figure 2 This is a schematic diagram of the hot air delivery assembly of this utility model;

[0018] Figure 3 This utility model Figure 1 A magnified view of the structure at point A in the middle;

[0019] Figure 4 This utility model Figure 1 A structural schematic diagram showing a partial detail;

[0020] Figure 5 This utility model Figure 1 Partial detail of the structure.

[0021] In the diagram: 100, support stand; 110, linear slide rail one; 120, linear slide rail two; 200, first slider; 210, locking screw; 220, connecting rod frame one; 300, limit plate; 310, positioning plug; 320, airbag ring; 330, miniature air pump; 400, hot air delivery assembly; 410, air pump; 420, resistance wire heater; 430, air outlet pipe; 440, air delivery hose; 450, air pressure gauge; 500, second slider; 510, connecting rod frame two; 600, detection ring; 610, thermal imaging monitor; 700, position adjustment assembly; 710, ball nut; 720, lead screw; 730, motor; 800, base. Detailed Implementation

[0022] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0023] Secondly, this utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views showing the device structure may be partially enlarged, not according to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In addition, in actual manufacturing, the three-dimensional spatial dimensions of length, width, and depth should be included.

[0024] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.

[0025] Figures 1-5 The diagram shown is a complete structural schematic of a compressor suction pipe leak detection device according to this utility model. Please refer to [link / reference]. Figures 1-5 This embodiment of a compressor suction pipe leak detection device includes a support base 100. Two first sliders 200 are horizontally slidable at both ends of one side of the support base 100. A limiting plate 300 is fixedly extended and suspended on one side of the first slider 200. The two limiting plates 300 have a positioning plug 310 and an airbag assembly for sealing and clamping the end of the suction pipe on their opposite sides. The positioning plug 310 is hollow inside. It also includes a hot air injection assembly 400 for injecting high-pressure hot air into the cavity of the positioning plug 310. A second slider 500 is horizontally slidable on the upper part of the support base 100 and a position adjustment assembly 700 for driving the second slider 500 to move left and right. A detection ring 600 is fixedly extended and suspended on one side of the second slider 500 and coaxially arranged with the positioning plug 310. Multiple thermal imaging monitors 610 are arranged around the periphery of the detection ring 600.

[0026] An airbag ring 320 is fixedly sleeved on the outer periphery of the positioning plug 310. A miniature air pump 330, which is connected to the airbag ring 320, is fixed on the opposite side of the positioning plug 310. The diameter of the limiting plate 300 is larger than the outer diameter of the end of the suction tube. It can be understood that when the airbag ring 320 is not inflated, the positioning plug 310, together with the airbag ring 320, can be smoothly inserted into the inner side of the end of the suction tube. After insertion, the airbag ring 320 is inflated by the miniature air pump 330. The inflated airbag ring 320 and the positioning plug 310 are used to seal and fix the end of the suction tube. The miniature air pump 330 can be an air pump of the same specifications and corresponding technical means as the existing compressor suction tube leak detection device. If necessary, it can also be equipped with auxiliary accessories such as solenoid valves and pressure relief valves. The hot air delivery assembly 400 includes an air pump 410, a resistance wire heater 420 connected to the input end of the air pump 410, an air outlet pipe 430 connected to the output end of the air pump 410, an air delivery hose 440 with one end connected to the free end of the air outlet pipe 430 and the other end connected to the positioning plug 310, and a pressure gauge 450 installed on the air outlet pipe 430. The pressure gauge 450 can monitor the air pressure in the air delivery and suction pipes in real time, and, in conjunction with the control system, adjust the output power of the air pump 410, etc. Furthermore, a pressure relief valve is installed on the air outlet pipe 430; the valve's threshold is adjustable, allowing excess pressurized gas to be discharged during the air injection process.

[0027] In this embodiment, the support base 100 has a linear groove 110 on one side that slides and matches the first slider 200. A locking screw 210 is threaded onto one side of the first slider 200. The first slider 200 also has a connecting rod bracket 220 fixedly connected to the limiting plate 300. The inner end of the locking screw 210 abuts against the inner wall of the vertical section of the linear groove 110. Since different compressor suction pipes have different length specifications, the first sliders 200 on both sides and the pipe end clamping unit can be adjusted and positioned by the cooperation of the linear groove 110, the first slider 200, and the locking screw 210. The second slider 500 includes a connecting rod bracket 510 fixedly connected to the detection ring 600 on one side. The support stand 100 has a linear groove 120 on one side that slides and matches the second slider 500; the position adjustment assembly 700 includes a ball nut 710 fixed to the inside of the second slider 500, a lead screw 720 threaded to the inside of the ball nut 710 and rotatably mounted at both ends to the inside of the linear groove 120, and a motor 730 fixed to one side of the support stand 100 for driving the lead screw 720 to rotate axially. Driven by the lead screw pair, the detection method is more stable and reliable compared to the manual displacement detection ring 600 in the prior art. Specifically, in use, firstly, the two ends of the suction tube are inserted into the outside of the positioning plug 310, and the airbag ring 320 is inflated using an air pump to seal both ends of the suction tube. Then, the hot air delivery component 400 is activated to inject high-pressure, high-temperature air into the positioning plug 310 and the inside of the suction tube through the pipeline. At the same time, with the cooperation of the position adjustment component 700, the second slider 500, etc., the detection ring 600 is moved along the length and outer periphery of the suction tube, and the thermal imaging monitor 610 is used to monitor and capture whether there is flowing infrared radiation around the outer periphery of the suction tube. Once the suction tube leaks air, the hot air flow and the corresponding infrared radiation will be detected in time. After receiving feedback, the control system will immediately trigger an alarm. It should be noted that the alarm component here can be a conventional audible and visual alarm, such as a warning light or buzzer, which are existing technologies and will not be elaborated on further.

[0028] It should be noted that in this embodiment, the operation and detection units are controlled by external programming such as PLC. The operation and detection units can be powered by external wires or batteries, which will not be described in detail here.

[0029] Furthermore, a base 800 is fixed to the bottom of the support stand 100, and the hot air delivery assembly 400 is placed on the base 800. The base 800 provides stable support for the compressor suction pipe leak detection device, making it an integrated unit that is easy to use.

[0030] In summary, the compressor suction pipe leak detection device of this embodiment, when in use, firstly, the two ends of the suction pipe are respectively connected to the outside of the positioning plug 310, and the airbag ring 320 is filled with air by the air pressure pump to seal the two ends of the suction pipe. Then, the hot air delivery component 400 is activated to inject high-pressure, high-temperature air into the positioning plug 310 and the inside of the suction pipe through the pipeline. At the same time, with the cooperation of the position adjustment component 700, the second slider 500, etc., the detection ring 600 is moved along the length direction and outer periphery of the suction pipe, and the thermal imaging monitor 610 is used to monitor and capture whether there is flowing infrared radiation on the outer periphery of the suction pipe. Once the suction pipe leaks, the hot air flow and the corresponding infrared radiation will be detected in time. After receiving the feedback, the control system will immediately trigger an alarm reminder. The whole detection process is simple and fast, without waiting in the middle, and the leak detection efficiency is further improved.

[0031] Although the present invention has been described above with reference to embodiments, various modifications can be made and components can be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the features in the embodiments disclosed in this invention can be combined with each other in any way. The lack of an exhaustive description of these combinations in this specification is merely for the sake of brevity and resource conservation. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A leak detection device for a compressor suction pipe, characterized in that, The device includes a support base (100), with two horizontally sliding first sliders (200) on one side of the support base (100). A limiting plate (300) is fixedly extended and suspended on one side of the first slider (200). The two limiting plates (300) have a positioning plug (310) and an airbag assembly for sealing and clamping the end of the inhalation tube on opposite sides. The positioning plug (310) is hollow inside and also includes a hot air delivery assembly (400) for injecting high-pressure hot air into the cavity of the positioning plug (310). A second slider (500) and a position adjustment assembly (700) for moving the second slider (500) left and right are horizontally sliding on the upper part of the support base (100). A detection ring (600) is fixedly extended and suspended on one side of the second slider (500) and coaxially arranged with the positioning plug (310). Multiple thermal imaging monitors (610) are arranged around the detection ring (600).

2. The compressor suction pipe leak detection device according to claim 1, characterized in that: An airbag ring (320) is fixedly sleeved on the outer periphery of the positioning plug (310). A miniature air pump (330) connected to the airbag ring (320) is fixed on the opposite side of the positioning plug (310). The diameter of the limiting plate (300) is larger than the outer diameter of the end of the suction tube.

3. The compressor suction pipe leak detection device according to claim 1, characterized in that: The hot air delivery assembly (400) includes an air pump (410), a resistance wire heater (420) connected to the input end of the air pump (410), an air outlet pipe (430) connected to the output end of the air pump (410), an air delivery hose (440) with one end connected to the free end of the air outlet pipe (430) and the other end connected to the positioning plug (310), and a pressure gauge (450) installed on the air outlet pipe (430).

4. A compressor suction pipe leak detection device according to claim 1, characterized in that: The support base (100) has a linear groove (110) on one side that slides and matches the first slider (200). The first slider (200) is threaded with a locking screw (210) on one side. The first slider (200) also has a connecting rod frame (220) fixedly connected to the limiting plate (300). The inner end of the locking screw (210) abuts against the inner sidewall of the vertical section of the linear groove (110).

5. A compressor suction pipe leak detection device according to claim 1, characterized in that: The second slider (500) includes a second link bracket (510) on one side that is fixedly connected to the detection ring (600).

6. A compressor suction pipe leak detection device according to claim 1, characterized in that: The support base (100) has a linear groove (120) on one side that slides and matches the second slider (500). The position adjustment assembly (700) includes a ball nut (710) fixed to the inside of the second slider (500), a lead screw (720) threaded to the inside of the ball nut (710) and rotatably mounted at both ends to the inside of the second linear slide (120), and a motor (730) fixed to one side of the support stand (100) and used to drive the lead screw (720) to rotate axially.

7. A compressor suction pipe leak detection device according to claim 1, characterized in that: The bottom of the support stand (100) is also fixed with a base (800), and the hot air delivery assembly (400) is placed on the base (800).

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