Water leakage detection method and device for refrigeration equipment

Abstract

The invention provides a water leakage detection method and device for refrigeration equipment. The to-be-tested product is kept in the preset state, so that the later 3D outline scanning of the product can be facilitated, and the scanning outline of the product can be completely obtained. And the welding track can enable the automatic welding device to quickly reach the leakage point position based on the contour data of the scanning wheel contour, so that the leakage point position is subjected to welding treatment. The automatic welding equipment is arranged in a three-axis welding mode, and a welding track is converted into a coordinate path, so that rapid welding of the leakage point position of the product is completed. In conclusion, by obtaining the scanning wheel contour of the to-be-detected product and setting the position of the leakage point, the automatic welding equipment can rapidly obtain the welding track when the leakage point of the product is repaired, so that automatic welding of the leakage point of the product can be realized, and the welding repair efficiency of the product is greatly improved.

Description

Technical Field

[0001] The invention relates to the technical field of air tightness detection, and in particular to a method and device for detecting water leakage of refrigeration equipment. Background Art

[0002] Immersing welded pipe parts in water for testing is an old and effective testing method. In the prior art, both ends of the welded parts are manually sealed and then immersed in water for testing. This testing method is relatively inefficient and labor-intensive. Summary of the invention

[0003] In view of the above problems, the present invention is proposed to provide a method and device for water leakage detection in refrigeration equipment that overcomes the above problems or at least partially solves the above problems. It can solve the problem of low efficiency of leakage detection and welding repair of existing refrigeration equipment products, achieve automatic welding of product leakage points, and greatly improve the welding repair efficiency of products.

[0004] Specifically, the present invention provides a method for detecting water leakage in a refrigeration device, the method comprising: Place the product to be tested in a preset position and immerse it in water in the preset state; Performing 3D contour scanning on the product to be tested and obtaining the scanned contour; Determine whether bubbles are generated in the water; If yes, mark the bubble generation position at the leak point position on the scan profile according to the bubble generation position on the product; Converting the scan profile and the leak point position into a welding trajectory; The automatic welding equipment welds the leak point according to the welding track.

[0005] Optionally, the product to be tested is placed in a preset position and immersed in water in a preset state, further comprising: Pressurized gas is introduced into the product to be tested.

[0006] Optionally, the step of introducing pressurized gas into the product to be tested further comprises: Performing a first pressurization and inflation in the product so that the pressure in the product rises to a first preset pressure; After a preset time, immersing the product in water; The product is then pressurized and inflated for the second time, so that the pressure in the product rises to the second preset pressure, and the first preset pressure is lower than the second preset pressure.

[0007] Optionally, in the converting the scanning profile and the leak point position into a welding track, the step further includes: Lifting the product out of water and keeping the product in the preset state; releasing the high pressure gas in the product; The product is transported to the welding position of the automatic welding equipment.

[0008] Optionally, after the automatic welding equipment welds the leak point according to the welding track, the step further includes: Perform a third pressurization and inflation on the welded product; Obtaining whether the pressure in the product changes; If so, the automatic welding equipment performs secondary welding on the leak location.

[0009] The present invention provides a refrigeration equipment water leakage detection device, which is used in any one of the refrigeration equipment water leakage detection methods described above. The refrigeration equipment water leakage detection device comprises: Detection pool; A detection platform, the detection platform is horizontally arranged and slidably arranged in the detection pool; A lifting component, which is disposed in the detection pool and connected to the detection platform; the lifting component is used to control the lifting of the detection platform; An inflatable component, the inflatable component includes an inflatable port and an exhaust port for inflating the product to be tested; a muffler is provided on the exhaust port.

[0010] Optionally, the inflation component also includes an inflation pipe, an air compressor, an exhaust pipe, a first solenoid valve, a second solenoid valve, a pressure sensor and an inflation hose; the inflation pipe is fixedly arranged on the detection pool; the air compressor is connected to one end of the inflation pipe; one end of the inflation hose is connected to the other end of the inflation pipe, and the other end is the inflation port; the exhaust pipe is arranged on the inflation pipe and is connected to the inflation pipe to form the exhaust port; the first solenoid valve is arranged on the inflation pipe, between the air compressor and the exhaust pipe; the second solenoid valve is arranged on the exhaust pipe; the pressure sensor is arranged on the inflation pipe.

[0011] Optionally, the refrigeration equipment water leakage detection device further includes: A holding assembly, the holding assembly includes a holding base, a mounting frame and a rotating frame; the holding base is used to be set on the detection platform; the mounting frame is installed on the holding base; the rotating frame is used to place the product and is rotatably installed on the mounting frame.

[0012] Optionally, a plurality of through holes are arranged in an array on the detection platform; a plurality of plug-in posts are arranged at the bottom of the retaining base; and each of the plug-in posts can be inserted into one of the through holes.

[0013] In the refrigeration equipment water leakage detection method of the present invention, the setting of the product to be tested to maintain a preset state can facilitate the later 3D contour scanning of the product, so that the scanning contour of the product can be fully obtained. When bubbles are generated in the water, it means that the product is damaged. Based on the data information of the scanning contour, the position of the leakage point on the product is converted to the leakage point position on the scanning contour. The welding trajectory enables the automatic welding setting to quickly reach the leakage point position based on the contour data of the scanning wheel contour, so as to perform welding processing on the leakage point position. The automatic welding equipment is a three-axis welding setting, which completes the rapid welding of the leakage point position of the product by converting the welding trajectory into a coordinate path. In summary, by obtaining the scanning wheel contour and the leakage point position of the product to be tested, the automatic welding equipment can quickly obtain the welding trajectory when repairing the leakage point of the product, so that automatic welding of the leakage point of the product can be realized, greatly improving the welding repair efficiency of the product.

[0014] Based on the following detailed description of specific embodiments of the present invention in conjunction with the accompanying drawings, those skilled in the art will become more aware of the above and other objects, advantages and features of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Hereinafter, some specific embodiments of the present invention will be described in detail in an exemplary and non-limiting manner with reference to the accompanying drawings. The same reference numerals in the accompanying drawings indicate the same or similar components or parts. It should be understood by those skilled in the art that these drawings are not necessarily drawn to scale. In the accompanying drawings: Figure 1 is a schematic flow chart of a method for detecting water leakage in a refrigeration device according to an embodiment of the present invention; Figure 2 is a schematic flow chart of a method for detecting water leakage in a refrigeration device according to an embodiment of the present invention; Figure 3 is a schematic flow chart of a method for detecting water leakage in a refrigeration device according to an embodiment of the present invention; Figure 4 is a schematic flow chart of a method for detecting water leakage in a refrigeration device according to an embodiment of the present invention; Figure 5 is a schematic structural diagram of a water leakage detection device for refrigeration equipment according to an embodiment of the present invention; Figure 6 yes Figure 5 A partial enlarged view of the middle A; Figure 7 is a schematic structural diagram of a retaining assembly in a water leakage detection device for refrigeration equipment according to an embodiment of the present invention; Figure 8 The present invention is a schematic structural diagram of a retaining assembly in a water leakage detection device for refrigeration equipment according to an embodiment of the present invention.

[0016] In the figure: 100, detection pool; 200, detection platform; 300, lifting assembly; 400, inflation assembly; 410, inflation pipe; 420, exhaust pipe; 430, first solenoid valve; 440, second solenoid valve; 450, pressure sensor; 460, inflation hose; 470, muffler; 510, rotating frame; 511, rotating disk; 512, guardrail; 520, retaining base; 521, plug-in column; 530, mounting frame; 600, control cabinet. DETAILED DESCRIPTION

[0017] Refer to the following Figures 1 to 8 To describe the method and device for detecting water leakage in refrigeration equipment according to an embodiment of the present invention. In the description of this embodiment, it should be understood that the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features, that is, include one or more of the features. In the description of the present invention, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined. When a feature "includes or contains" one or some of the features it covers, unless otherwise specifically described, this indicates that other features are not excluded and may further include other features.

[0018] Unless otherwise clearly defined and limited, the terms "set", "install", "connect", "connect", "fix", "couple" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. A person skilled in the art should be able to understand the specific meanings of the above terms in the present invention according to the specific circumstances.

[0019] In addition, in the description of this embodiment, the first feature being "above" or "below" the second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact through another feature between them. That is, in the description of this embodiment, the first feature being "above", "above", and "above" the second feature includes the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. The first feature being "below", "below", or "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0020] In the description of the present embodiment, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0021] Figure 1 It is a method for detecting water leakage in refrigeration equipment, such as Figure 1 As shown, and refer to Figures 2 to 4 The embodiment of the present invention provides a method for detecting water leakage in a refrigeration device, and the method for detecting water leakage in a refrigeration device comprises: S100, placing the product to be tested at a preset position and immersing it in water in a preset state; S200, performing 3D contour scanning on the product to be tested and obtaining the scan contour; S300, determining whether bubbles are generated in the water; S400, if yes, mark the bubble generation position at the leak point position on the scan profile according to the bubble generation position on the product; S500, converting the scanning profile and the leak point position into a welding track; S600, automatic welding equipment welds the leaking point according to the welding track.

[0022] Specifically, the setting of maintaining the preset state of the product to be tested can facilitate the subsequent 3D contour scanning of the product, so that the scanning contour of the product can be fully obtained. Furthermore, when bubbles are generated in the water, it means that the product is damaged, and the position of the leak on the product is converted to the leak position on the scanning contour based on the data information of the scanning contour. Furthermore, the welding trajectory can enable the automatic welding setting to quickly reach the leak position based on the contour data of the scanning wheel contour, so as to perform welding on the leak position. Furthermore, the automatic welding equipment is a three-axis welding setting, which completes the rapid welding of the product leak position by converting the welding trajectory into a coordinate path.

[0023] In summary, by obtaining the scanning wheel profile and leakage point position setting of the product to be tested, the automatic welding equipment can quickly obtain the welding trajectory when repairing the leakage point of the product, thereby realizing automatic welding of the leakage point of the product and greatly improving the welding repair efficiency of the product.

[0024] In this embodiment, the step after determining whether bubbles are generated in the water further includes: S310, if not, lift the product out of the water and move it to a placement location.

[0025] In some embodiments of the present invention, Figure 2 As shown, the product to be tested is placed in a preset position and immersed in water in a preset state, and further includes: S110, passing pressurized gas into the product to be tested.

[0026] Specifically, pressurized gas is introduced into the product to keep the interior of the product in a positive pressure state, so that when the product has a leak, the high pressure in the product can flow out from the leak to generate bubbles.

[0027] In some embodiments of the present invention, Figure 2 As shown, the product to be tested is introduced into the pressurized gas, and further includes: S111, pressurizing and inflating the product for the first time, so that the pressure inside the product rises to a first preset pressure; S112, after a preset time, immerse the product in water; S113, pressurizing and inflating the product for the second time, so that the pressure inside the product rises to a second preset pressure, and the first preset pressure is lower than the second preset pressure.

[0028] Specifically, the first pressurization and inflation injects a small amount of gas into the product, thereby preventing the product from bursting or the interface from flying out due to the direct injection of a large air pressure. Furthermore, the second preset pressure of the second pressurization and inflation is the pressure required for detection, so the second preset pressure needs to be greater than the first preset pressure.

[0029] Furthermore, the product is immersed in water at a first preset pressure so that at least a small amount of gas is injected into the product to maintain a positive pressure state, thereby preventing water from flowing back into the product due to leakage points, thereby protecting the product and preventing the interior of the product from being corroded by water.

[0030] In some embodiments of the present invention, converting the scanning profile and the leak point position into a welding trajectory further includes: S510, lifting the product out of the water and keeping the product in a preset state; S520, release the high-pressure gas in the product; S530, conveying the product to the welding position of the automatic welding equipment.

[0031] In some embodiments of the present invention, Figure 4 As shown, after the automatic welding equipment welds the leak point according to the welding track, the steps also include: S700, perform a third pressurization and inflation on the welded product; S800, obtaining whether the pressure in the product changes; S900: If yes, the automatic welding equipment performs secondary welding on the leaking point.

[0032] S810: If not, execute step S310.

[0033] Specifically, the product is connected to a pressure gauge that measures the internal pressure of the reactor. Since the leak point of the product has been determined in the previous steps, whether the leak point has been welded and sealed can be determined by observing the changes in the pressure gauge.

[0034] The embodiment of the present invention provides a refrigeration equipment water leakage detection device, which is used in any of the refrigeration equipment water leakage detection methods in the above embodiments, such as Figures 5 to 8 As shown, the refrigeration equipment water leakage detection device includes a detection pool 100, a detection platform 200, a lifting assembly 300 and an inflation assembly 400. The detection platform 200 is horizontally arranged and slidably arranged in the detection pool 100. The lifting assembly 300 is arranged in the detection pool 100 and connected to the detection platform 200. The lifting assembly 300 is used to control the lifting and lowering of the detection platform 200. The inflation assembly 400 includes an inflation port and an exhaust port for inflating the product to be tested, and a muffler 470 is arranged on the exhaust port.

[0035] Specifically, the detection pool 100 is in the shape of a box, and the detection pool 100 is filled with water. The detection pool 100 is a rectangular pool, and a lifting column is respectively provided at each of the four edge corners, and the detection platform 200 is slidably installed on the lifting column. Further, the detection platform 200 can place multiple detection products to improve the detection efficiency of the products. Further, there are four lifting assemblies 300, which are respectively installed at the four corners of the detection pool 100. The lifting assembly 300 includes a sprocket and a motor, and the detection platform 200 is lifted and lowered under the drive of the motor and the sprocket. Specifically, the inflation port is used to fill the product with high-pressure gas, and the exhaust port is used to discharge the high-pressure gas in the product to the outside. Further, the setting of the muffler 470 can reduce the noise generated during exhaust, thereby optimizing the working environment.

[0036] In this embodiment, if Figure 5 As shown, the refrigeration equipment water leakage detection device also includes a control cabinet 600, which can display pressure information, control the actions of various components through PLC, and can be programmed to enable the lifting platform to complete preset actions.

[0037] In some embodiments of the present invention, Figure 6As shown, the inflation component 400 also includes an inflation pipe 410, an air compressor, an exhaust pipe 420, a first solenoid valve 430, a second solenoid valve 440, a pressure sensor 450 and an inflation hose 460. The inflation pipe 410 is fixedly arranged on the detection pool 100, and the air compressor is connected to one end of the inflation pipe 410. One end of the inflation hose 460 is connected to the other end of the inflation pipe 410, and the other end is an inflation port. The exhaust pipe 420 is arranged on the inflation pipe 410 and is connected to the inflation pipe 410 to form an exhaust port. The first solenoid valve 430 is arranged on the inflation pipe 410, and is located between the air compressor and the exhaust pipe 420. The second solenoid valve 440 is arranged on the exhaust pipe 420, and the pressure sensor 450 is arranged on the inflation pipe 410.

[0038] Specifically, the air compressor introduces high-pressure gas into the inflation pipe 410, and the provision of the inflation hose 460 can increase the flexibility of the inflation port, thereby facilitating the connection and inflation of products of different models. Furthermore, the pressure sensor 450 can obtain the pressure value in the inflation pipe 410. When the pressure in the inflation pipe 410 increases, it means that the inside of the product is full of gas, and the pressure in the inflation pipe 410 increases as the pressure inside the product increases. Therefore, the first preset pressure and the second preset pressure in the product correspond to the first pressure value and the second pressure value of the pressure sensor 450, respectively. Furthermore, the pressure sensor 450 is electrically connected to the first solenoid valve 430, and when the pressure sensor 450 is the first pressure value or the second pressure value, the first solenoid valve 430 is closed. In this embodiment, there are two or more inflation components 400.

[0039] During operation, the air inlet of the air hose 460 is first connected to the product, and then the air compressor is turned on to inflate the product through the air pipe 410 and the air hose 460. At this time, the second solenoid valve 440 is in a closed state. When the pressure inside the product reaches the first preset pressure, the pressure sensor 450 displays the pressure as the first pressure value, and the first solenoid valve 430 is closed. After the product is immersed in water, the first solenoid valve 430 is opened again to continue pressurizing and inflating the product. When the pressure sensor 450 displays the pressure as the second pressure value, the pressure inside the product reaches the second preset pressure.

[0040] When it is necessary to release the high-pressure gas in the product, the first solenoid valve 430 is opened and the second solenoid valve 440 is closed, so that the gas is discharged from the exhaust pipe 420 into the muffler 470 to the outside.

[0041] In some embodiments of the present invention, Figure 7 and Figure 8As shown, the refrigeration equipment water leakage detection device also includes a holding assembly, which includes a holding base 520, a mounting frame 530 and a rotating frame 510. The holding base 520 is used to be arranged on the detection platform 200. The mounting frame 530 is installed on the holding base 520, and the rotating frame 510 is used to place the product and is rotatably installed on the mounting frame 530.

[0042] Specifically, the rotating frame 510 is rotatably arranged to adjust the angle of the product, so that the product can be adjusted in angle while maintaining a preset state, thereby facilitating 3D scanning, welding and leak point observation of the product. Further, the rotating axis of the rotating frame 510 extends in the horizontal direction.

[0043] In an embodiment of the present invention, Figure 8 As shown, the rotating frame 510 includes a rotating disk 511 and a plurality of guardrails 512; the rotating disk 511 is in a circular ring shape, which can facilitate welding of the bottom of the product. The rotating disk 511 is initially set horizontally and rotatably set on the mounting frame 530. The plurality of guardrails 512 are evenly distributed along the circumference of the rotating disk 511, and the guardrails 512 are set vertically. The setting of the guardrails 512 can prevent the product from sliding off the rotating disk 511 when the rotating frame 510 rotates.

[0044] In this embodiment, the mounting frame 530 is rotatably disposed on the holding base 520 , and the rotation axis thereof extends in the vertical direction.

[0045] In some embodiments of the present invention, Figure 8 As shown, a plurality of through holes are arranged in an array on the detection platform 200. A plurality of plug-in posts 521 are arranged at the bottom of the holding base 520, and each plug-in post 521 can be inserted into a through hole.

[0046] Specifically, the through hole on the detection platform 200 can reduce the water resistance during the rise and fall of the detection platform 200. Further, the plug-in column 521 can stably mount the base 520 on the detection platform 200 to prevent the product from tipping over, thereby maintaining the preset state.

[0047] At this point, those skilled in the art should recognize that, although multiple exemplary embodiments of the present invention have been shown and described in detail herein, many other variations or modifications that conform to the principles of the present invention can still be directly determined or derived based on the content disclosed in the present invention without departing from the spirit and scope of the present invention. Therefore, the scope of the present invention should be understood and recognized as covering all these other variations or modifications.

Claims

1. A method for detecting water leakage in refrigeration equipment, characterized in that: include: Place the product to be tested in a preset position and immerse it in water in the preset state; Performing 3D contour scanning on the product to be tested and obtaining the scanned contour; Determine whether bubbles are generated in the water; If yes, mark the bubble generation position at the leak point position on the scan profile according to the bubble generation position on the product; Converting the scan profile and the leak point position into a welding trajectory; The automatic welding equipment welds the leak point according to the welding track.

2. The method for detecting water leakage in refrigeration equipment according to claim 1, characterized in that: The product to be tested is placed in a preset position and immersed in water in a preset state, and further comprises: Pressurized gas is introduced into the product to be tested.

3. The method for detecting water leakage in refrigeration equipment according to claim 2, characterized in that: The step of introducing pressurized gas into the product to be tested further comprises: Performing a first pressurization and inflation in the product so that the pressure in the product rises to a first preset pressure; After a preset time, immersing the product in water; The product is then pressurized and inflated for the second time, so that the pressure in the product rises to the second preset pressure, and the first preset pressure is lower than the second preset pressure.

4. The method for detecting water leakage in refrigeration equipment according to claim 1, characterized in that: The step of converting the scanning profile and the leak point position into a welding track further includes: Lifting the product out of water and keeping the product in the preset state; releasing the high pressure gas in the product; The product is transported to the welding position of the automatic welding equipment.

5. The method for detecting water leakage in refrigeration equipment according to claim 1, characterized in that: After the automatic welding equipment welds the leak point according to the welding track, the step further includes: Perform a third pressurization and inflation on the welded product; Obtaining whether the pressure in the product changes; If so, the automatic welding equipment performs secondary welding on the leak location.

6. A refrigeration equipment water leakage detection device, used in the refrigeration equipment water leakage detection method according to any one of claims 1 to 5, characterized in that: include: Detection pool; A detection platform, the detection platform is horizontally arranged and slidably arranged in the detection pool; A lifting component, which is disposed in the detection pool and connected to the detection platform; the lifting component is used to control the lifting of the detection platform; An inflatable component, the inflatable component includes an inflatable port and an exhaust port for inflating the product to be tested; a muffler is provided on the exhaust port.

7. The refrigeration equipment water leakage detection device according to claim 6, characterized in that: The inflation component also includes an inflation pipe, an air compressor, an exhaust pipe, a first solenoid valve, a second solenoid valve, a pressure sensor and an inflation hose; the inflation pipe is fixedly arranged on the detection pool; the air compressor is connected to one end of the inflation pipe; one end of the inflation hose is connected to the other end of the inflation pipe, and the other end is the inflation port; the exhaust pipe is arranged on the inflation pipe and is connected to the inflation pipe to form the exhaust port; the first solenoid valve is arranged on the inflation pipe, located between the air compressor and the exhaust pipe; the second solenoid valve is arranged on the exhaust pipe; the pressure sensor is arranged on the inflation pipe.

8. The refrigeration equipment water leakage detection device according to claim 6, characterized in that: Also includes: A holding assembly, the holding assembly includes a holding base, a mounting frame and a rotating frame; the holding base is used to be set on the detection platform; the mounting frame is installed on the holding base; the rotating frame is used to place the product and is rotatably installed on the mounting frame.

9. The refrigeration equipment water leakage detection device according to claim 8, characterized in that: The detection platform is provided with a plurality of through holes in an array; the bottom of the retaining base is provided with a plurality of plug-in posts; each of the plug-in posts can be inserted into one of the through holes.

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