Air compressor air outlet leakage detection device

Abstract

The utility model discloses an air compressor outlet leakage detection device belongs to air compressor field. The air compressor outlet leakage detection device is used for detecting the leakage situation of the air outlet pipe on the air compressor and the connecting pipe connected with the air outlet pipe, and the detection device comprises two half circular cover bodies arranged oppositely, the two cover bodies are detachably connected and are sleeved at the connecting portion of the air outlet pipe and the connecting pipe, the two cover bodies are oppositely arranged to form a cylindrical closed cavity, a top of one cover body is fixedly provided with a cylinder body and a communicating pipe, the cylinder body is filled with water, and the two ends of the communicating pipe are respectively connected to the cylinder body and the closed cavity. The utility model forms the annular closed cavity through the cover body, sets up the cylinder body containing the water, cooperates the connection of the communicating pipe, and after the annular closed cavity collects the leaked gas, the communicating pipe is used to guide the leaked gas into the transparent water cylinder to form the visual bubble, realizes the quick and direct leakage detection, and the structure is simple, convenient to operate and high in practicality.

Description

Technical Field

[0001] This utility model relates to the field of air compressors, and in particular to an air compressor outlet leakage detection device. Background Technology

[0002] Air compressors are key equipment in industrial production that provides compressed air. The air compressor's outlet is connected to the air-consuming equipment via pipes, forming a compressed air system. In actual operation, due to vibration, aging, improper installation, and other reasons, gas leaks can easily occur at the air compressor's outlet flange, valves, and connecting pipes. These leaks not only waste energy, reduce system pressure, and affect the normal operation of the air-consuming equipment, but also increase the air compressor's operating load and start-stop frequency, leading to a shortened equipment lifespan and increased maintenance costs.

[0003] Currently, methods for detecting this type of leak include listening and touching, soap and water leak testing, ultrasonic leak testing, and acoustic imaging leak testing.

[0004] The listening and touch method is a preliminary and rapid leak detection method that does not rely on any professional tools but only on human senses (hearing and touch). It is cost-free and simple to implement, but it is highly dependent on the operator's experience and sensory sensitivity, and the detection accuracy is relatively poor. If the operation is not done properly, it may also touch high temperature or moving parts, causing safety risks. The soap and water leak detection method involves applying soapy water to suspected leak points. If a leak is found, the leaking compressed air will agitate the soap, creating soap bubbles. By observing the bubble formation, the location of the leak can be identified relatively easily. However, this method is inefficient and requires direct contact between the soap and water and the point being tested. It is difficult or dangerous to operate on pipelines at high altitudes, high temperatures, rotating sections, or those with insulating coverings.

[0005] Some technologies use ultrasonic detectors and acoustic imagers, but these devices are often expensive, and electronic sensor detection methods require power supply and wiring, making installation complex.

[0006] For routine batch inspections, the first step is often to quickly determine if a leak exists. If a leak is found, further precise location of the leak point is required, which effectively improves detection efficiency. However, the listening and touch method is inefficient; the soap water leak detection method is inefficient and inconvenient to operate; ultrasonic testing and acoustic imaging testing are accurate and fast in location, but they are expensive and not suitable for large-area rapid testing. Utility Model Content

[0007] This invention provides an air compressor outlet leakage detection device, which can solve the problems of high cost and difficulty in large-area, rapid and efficient judgment of leakage in existing air compressor leakage detection technology.

[0008] An air compressor outlet leakage detection device is used to detect leakage in the air compressor outlet pipe and the connecting pipe connected to the outlet pipe. The detection device includes two semi-circular covers arranged opposite each other. The two covers are detachably connected and sleeved at the connection between the outlet pipe and the connecting pipe. The two covers are arranged opposite each other to form a cylindrical sealed cavity. A cylinder and a connecting pipe are fixed on the top of one cover. The cylinder is filled with water. The two ends of the connecting pipe are respectively connected to the cylinder and the sealed cavity.

[0009] Preferably, the cylinder is made of a transparent material, and the top of the cylinder has an opening.

[0010] Preferably, a sealing element is fixed on the side of the cover near the air outlet pipe, and the sealing element is used to seal the connection between the cover and the air outlet pipe and the connecting pipe.

[0011] Preferably, a pressure relief assembly is provided at the top of the cylinder and on the side near the opening, the pressure relief assembly being used to discharge gas inside the cylinder.

[0012] Preferably, the pressure relief assembly includes a fixed frame fixed to the top of the cylinder, a movable rod slidably connected to the fixed frame, a cover plate fixed to the bottom end of the movable rod, a spring sleeved on the movable rod, and a sealing gasket fixed to the bottom of the cover plate, wherein the sealing gasket covers the opening.

[0013] Preferably, connecting plates are fixed at both ends of the cover, and every two adjacent connecting plates are connected by multiple connecting bolts.

[0014] Preferably, the sealing element is an inflatable sealing ring.

[0015] Preferably, the connecting pipe is equipped with a valve.

[0016] Preferably, one side of the two covers is hinged together and the other side is connected by a quick-locking device; the quick-locking device is used to detach and assemble the two covers.

[0017] Preferably, the cover is provided with a transparent plate.

[0018] This utility model provides an air compressor outlet leakage detection device, which has the following beneficial effects: 1. By setting a cover to form an annular sealed cavity, and setting a cylinder containing water, and connecting it with a connecting pipe, the annular sealed cavity collects the leaked gas and then guides it to a transparent water cylinder through the connecting pipe to form visible bubbles, realizing rapid and intuitive leak detection. The structure is simple and easy to operate, realizing rapid, safe and reliable detection of gas leaks at the air compressor outlet connection, and is highly practical.

[0019] 2. A pressure relief component is installed in the opening of the cylinder. If the air pressure inside the cylinder rises due to continuous minor leakage or temperature changes, and the air pressure overcomes the preload of the spring, it will push the cover plate up, compress the spring, and cause the sealing gasket to leave the opening, thus automatically relieving pressure and protecting the detection device from damage. Attached Figure Description

[0020] Figure 1 A schematic diagram of the structure of an air compressor outlet leakage detection device provided by this utility model. Figure 1 ; Figure 2 A cross-sectional structural schematic diagram of an air compressor outlet leakage detection device provided by this utility model; Figure 3 A schematic diagram of the cover plate structure of an air compressor outlet leakage detection device provided by this utility model; Figure 4 This utility model provides an air compressor outlet leakage detection device. Figure 1 Enlarged structural diagram at point A in the middle.

[0021] Explanation of reference numerals in the attached figures: 1. Air outlet duct; 2. Connecting pipe; 3. Cover; 4. Cylinder; 5. Connecting plate; 6. Connecting bolt; 7. Seal; 8. Connecting pipe; 9. Valve; 10. Transparent plate; 11. Cover plate; 12. Fixing frame; 13. Movable rod; 14. Spring; 15. Sealing gasket; 16. Opening. Detailed Implementation

[0022] The specific embodiments of this utility model are described in detail below, but it should be understood that the protection scope of this utility model is not limited to the specific embodiments.

[0023] like Figures 1 to 4 As shown in the figure, an air compressor outlet leakage detection device provided by this utility model embodiment is used to detect the leakage of the air outlet pipe 1 and the connecting pipe 2 connected to the air outlet pipe 1 on the air compressor. The detection device includes two semi-circular covers 3 arranged opposite to each other. The two covers 3 are detachably connected and sleeved at the connection between the air outlet pipe 1 and the connecting pipe 2. The two covers 3 are arranged opposite to each other to form a cylindrical sealed cavity. A cylinder 4 and a connecting pipe 8 are fixed on the top of one cover 3. The inside of the cylinder 4 is filled with water. The two ends of the connecting pipe 8 are respectively connected to the cylinder 4 and the sealed cavity.

[0024] After the cover 3 is installed on the air outlet pipe 1 and the connecting pipe 2, it forms an annular sealed cavity. The connecting pipe 8 connects the annular sealed cavity to the cylinder 4. When the air compressor starts, if there is a gas leak at the connection of the air outlet pipe 1, the leaked gas will enter the annular sealed cavity and be introduced into the water in the cylinder 4 through the connecting pipe 8. An observer can directly see bubbles emerging from the top of the connecting pipe 8 through the transparent cylinder 4, thus visually determining that a leak exists.

[0025] By setting the cover 3 to form an annular sealed cavity, setting the cylinder 4 containing water, and connecting it with the connecting pipe 8, a visual bubble leakage detection is formed. The structure is simple and easy to operate, and it can realize the rapid, safe and reliable detection of gas leakage at the air compressor outlet connection. It is highly practical.

[0026] In some specific implementation plans, such as Figure 3 and Figure 4 As shown, the cylinder 4 is made of transparent material, allowing observers to see if gas is escaping. The top of the cylinder 4 has an opening 16 for injecting water and depressurizing internal gas.

[0027] In some specific implementation plans, such as Figure 1 , Figure 2 and Figure 3 As shown, a sealing element 7 is fixed on the side of the cover 3 near the air outlet pipe 1. The sealing element 7 is used to seal the connection between the cover 3 and the air outlet pipe 1 and the connecting pipe 2, and the sealing element 7 is an inflatable sealing ring.

[0028] After the cover 3 is installed in place, the sealing element 7 is expanded by inflation, which tightly seals the connection gap between the cover 3 and the air outlet pipe 1 and the connecting pipe 2, ensuring good sealing of the annular sealed cavity.

[0029] In some specific implementation plans, such as Figure 1 , Figure 2 and Figure 4 As shown, a pressure relief assembly is provided on the top of the cylinder 4 and on the side near the opening 16. The pressure relief assembly is used to discharge the gas inside the cylinder 4. The pressure relief assembly includes a fixed frame 12 fixed to the top of the cylinder 4, a movable rod 13 slidably connected to the fixed frame 12, a cover plate 11 fixed to the bottom of the movable rod 13, a spring 14 sleeved on the movable rod 13, and a sealing gasket 15 fixed to the bottom of the cover plate 11. The sealing gasket 15 covers the opening 16.

[0030] If the internal pressure of the cylinder 4 increases due to continuous minor leakage or temperature changes, and the pressure overcomes the preload of the spring 14, it will push the cover plate 11 upward, compress the spring 14, and cause the sealing gasket 15 to leave the opening 16, automatically releasing pressure and protecting the detection device from damage. After pressure release, the cover plate 11 will reset under the action of the spring 14, resealing the opening 16.

[0031] In some specific implementation plans, such as Figure 1 As shown, connecting plates 5 are fixed at both ends of the cover 3, and each pair of adjacent connecting plates 5 are connected by multiple connecting bolts 6. Through holes for inserting the connecting bolts 6 are provided inside the connecting plates 5, and the connecting bolts 6 are connected to the cover 3 by cooperating with nuts.

[0032] By installing the two covers 3 at the connection between the air outlet pipe 1 and the connecting pipe 2 via the connecting plate 5 and the connecting bolt 6, an annular sealed cavity can be formed. When maintenance is required, the covers 3 can be removed by unscrewing the nuts and connecting bolts 6 for maintenance and repair. The disassembly and assembly of the covers 3 is simple and convenient.

[0033] In some specific implementation plans, such as Figure 1 and Figure 2 As shown, a valve 9 is installed on the connecting pipe 8. Under normal use, the valve 9 is open, and when the cover 3 is removed or installed, the valve 9 is closed to prevent water from flowing out.

[0034] In some specific implementation plans, such as Figure 1 As shown, the inside of the cover 3 is equipped with a sound insulation layer, which can effectively reduce the noise of the airflow at the air outlet.

[0035] In one embodiment, the two covers 3 are hinged on one side, connected by a hinge or similar structure, facilitating quick opening and closing of the two covers 3. The other side is connected by a quick-locking device. The quick-locking device can be a door-type locker, a conical pin-grip locker, or similar existing technology. Its purpose is to achieve quick locking when the two covers 3 are closed, and quick disassembly, facilitating the removal of the detection device from the pipe connection. In use, simply use the quick-locking device to quickly disassemble, place the two covers 3 on the area to be tested, and quickly lock them using the quick-locking device for testing. The disassembly steps are the reverse. Since the size of the covers 3 can be flexibly customized, it is convenient to perform rapid batch testing on pipes of different diameters and areas of different sizes to be tested. When a leak is detected, other methods can be used for precise location. Thus, rapid batch testing can be achieved at low cost, improving testing efficiency.

[0036] A transparent plate 10 is provided on the cover 3. The transparent plate 10 is located near the connection between the air outlet pipe 1 and the connecting pipe 2. The transparent plate 10 makes it easy to directly observe the status of the pipe connection.

[0037] To facilitate understanding of the embodiments of this solution by those skilled in the art, the working principle of this solution will now be briefly explained in conjunction with specific application scenarios: Two covers 3 with seals 7 are symmetrically installed at the connection between the air compressor outlet pipe 1 and the connecting pipe 2 via connecting plates 5 and connecting bolts 6, forming an annular sealed cavity. During installation, ensure that the inflatable sealing rings of the seals 7 are in an inflated state to guarantee the sealing performance of the annular sealed cavity. Then, open the valve 9 on the connecting pipe 8 and inject an appropriate amount of water into the cylinder 4 through the opening 16 at the top of the cylinder 4, so that the top of the connecting pipe 8 is submerged in water.

[0038] If there is a gas leak at the connection between the outlet pipe 1 and the connecting pipe 2 when the air compressor starts up, the leaked gas will enter the annular sealed cavity and be introduced upward into the water in the cylinder 4 along the connecting pipe 8. Since the cylinder 4 is made of transparent material, an observer can directly see bubbles continuously emerging from the top of the connecting pipe 8, thus quickly and accurately determining that there is a gas leak.

[0039] The device collects leaked gas through an annular sealed cavity and guides it into a transparent water cylinder through a connecting pipe 8 to form visible bubbles, enabling rapid and intuitive leak detection. It also features automatic pressure relief and easy disassembly and maintenance. The device has a simple structure, is safe and reliable to operate, and is highly practical.

[0040] The above-disclosed embodiments are only a few specific examples of the present utility model. However, the embodiments of the present utility model are not limited thereto. Any changes that can be conceived by those skilled in the art should fall within the protection scope of the present utility model.

Claims

1. A leak detection device for an air compressor outlet, used to detect leaks in the air compressor outlet pipe (1) and the connecting pipe (2) connected to the outlet pipe (1), characterized in that, The detection device includes two semi-circular covers (3) arranged opposite to each other. The two covers (3) are detachably connected and sleeved at the connection between the air outlet pipe (1) and the connecting pipe (2). The two covers (3) are arranged opposite to each other to form a cylindrical sealed cavity. A cylinder (4) and a connecting pipe (8) are fixed on the top of one of the covers (3). The cylinder (4) is filled with water. The two ends of the connecting pipe (8) are respectively connected to the cylinder (4) and the sealed cavity.

2. The air compressor outlet leakage detection device as described in claim 1, characterized in that, The cylinder (4) is made of transparent material, and the top of the cylinder (4) is provided with an opening (16).

3. The air compressor outlet leakage detection device as described in claim 2, characterized in that, The cover (3) is provided with a sealing element (7) on the side near the air outlet pipe (1). The sealing element (7) is used to seal the connection between the cover (3) and the air outlet pipe (1) and the connecting pipe (2).

4. The air compressor outlet leakage detection device as described in claim 2, characterized in that, A pressure relief assembly is provided on the top of the cylinder (4) and on the side near the opening (16), the pressure relief assembly being used to discharge the gas inside the cylinder (4).

5. The air compressor outlet leakage detection device as described in claim 4, characterized in that, The pressure relief assembly includes a fixed frame (12) fixed to the top of the cylinder (4), a movable rod (13) slidably connected to the fixed frame (12), a cover plate (11) fixed to the bottom of the movable rod (13), a spring (14) sleeved on the movable rod (13), and a sealing gasket (15) fixed to the bottom of the cover plate (11). The sealing gasket (15) covers the opening (16).

6. The air compressor outlet leakage detection device as described in claim 1, characterized in that, The cover (3) is fixed with connecting plates (5) at both ends, and each pair of adjacent connecting plates (5) are connected by multiple connecting bolts (6).

7. The air compressor outlet leakage detection device as described in claim 3, characterized in that, The sealing element (7) is an inflatable sealing ring.

8. The air compressor outlet leakage detection device as described in claim 7, characterized in that, A valve (9) is provided on the connecting pipe (8).

9. The air compressor outlet leakage detection device as described in claim 8, characterized in that, The two covers (3) are hinged on one side and connected on the other side by a quick-locking device; the quick-locking device is used to realize the disassembly and assembly of the two covers (3).

10. The air compressor outlet leakage detection device as described in claim 9, characterized in that, The cover (3) is provided with a transparent plate (10).

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