Pipeline air tightness detection platform

Abstract

The utility model discloses a pipeline air tightness detection bench comprising a detection bench, the right end of the upper surface of the detection bench is provided with slide rails in a front-back symmetrical manner, the slide rails are provided with a moving plate in a sliding manner, and a projection arranged at the center of the bottom of the moving plate is in driving connection with a driving assembly arranged at the middle part of the right end of the detection bench. Barometers are arranged on the right side of the movable plate in a front-back symmetry mode, the detection ends of the barometers are located in the centers of the interiors of first pipe end plugging clamping pieces arranged on the left side of the movable plate in a front-back symmetry mode, a fixing plate is arranged at the left end of the top of the detection table, and a flow dividing pipe is arranged on the top of the left side of the fixing plate and is of a U-shaped structure. The device has the advantages of being high in detection accuracy, convenient to operate and high in practicability, the air tightness of the heat distribution pipeline can be rapidly and accurately detected, a worker can conveniently find the air leakage position, and the efficiency of detecting the air tightness of the heat distribution pipeline and finding the air leakage position of the pipeline is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of thermal pipeline detection, in particular to a pipeline air tightness detection platform. Background Art

[0002] As an important equipment for heat energy transmission, thermal pipelines are widely used in various industrial production and civil fields. However, since pipelines may be affected by many factors during production, installation and use, such as material quality, processing technology, installation accuracy, operating environment, etc., they may cause air leakage in the pipelines. Air leakage will not only reduce the working efficiency of thermal pipelines and increase energy consumption, but also may lead to safety accidents. Therefore, air tightness testing of thermal pipelines is a key link to ensure safe and efficient operation of pipelines.

[0003] At present, in the prior art, there is a pipeline air tightness detection device disclosed in the announcement number "CN217716807U", which seals both ends of the pipeline, then places the pipeline in a detection box, injects liquid to submerge the pipeline, and then blows air into the pipeline through the blowing component and the air pipe. If there is a gap on the pipeline, bubbles can be seen on the water surface, and the air tightness of the pipeline can be judged. However, this method has certain limitations. For example, it consumes a lot of water resources. In order to ensure the accuracy of the detection, the amount of water in the detection box must be sufficient to completely submerge the pipeline to be detected, which not only increases the detection cost, but also in some areas with water scarcity, the application of this detection method will be limited. In addition, if the pipeline is too long, a larger detection box is required to accommodate it, which undoubtedly increases the size and manufacturing cost of the equipment. Therefore, we propose a pipeline air tightness detection table. Utility Model Content

[0004] In view of the problems existing in the prior art, the utility model discloses a pipeline air tightness detection platform, and the technical scheme adopted is as follows: comprising a detection platform, a slide rail is symmetrically arranged at the front and back right end of the upper surface of the detection platform, a movable plate is slidably mounted on the slide rail, and a protrusion arranged at the center of the bottom of the movable plate is drivingly connected to a driving assembly arranged at the middle of the right end of the detection platform, a pressure gauge is symmetrically arranged at the front and back right side of the movable plate, and the detection ends of the pressure gauge are respectively located at the inner center of a pipe end sealing fixture symmetrically arranged at the front and back left side of the movable plate, a fixed plate is arranged at the top left end of the detection platform, and a shunt pipe is arranged at the top left side of the fixed plate, and the shunt pipe is a "U"-shaped structure, and the front and rear ends of the shunt pipe are respectively connected to the interior of a pipe end sealing fixture 2 arranged at the front and rear ends of the right side of the fixed plate, and the pipe end sealing fixture 2 is respectively connected to the pipe end sealing fixture 2 The blocking member 1 is located in the same central axis, and infrared thermal imagers are respectively arranged above the pipe end blocking member 2, and the infrared thermal imagers are respectively fixedly installed on the top of the fixed plate, and an air heating component is arranged below the diversion pipe, and the air heating component consists of a heating box, a partition, an electric heating rod and a connecting pipe, an air pump is arranged behind the heating box, and the air pump and the heating box are respectively fixedly installed on an extension plate arranged at the bottom of the left end of the detection platform, an air supply pipe is arranged at the exhaust end of the air pump, and the other end of the air supply pipe is connected with the interior of the heating box, and partitions are equidistantly arranged inside the heating box, and electric heating rods are arranged between the partitions, and the upper and lower ends of the electric heating rod are respectively fixedly connected with the upper and lower sides of the interior of the heating box, and a connecting pipe is arranged at the front end of the right side of the heating box, and the other end of the connecting pipe is connected with the middle part of the diversion pipe.

[0005] As a preferred technical solution of the utility model, the driving assembly is composed of a motor, a threaded rod and a slide, the slide is arranged in the middle of the right end of the detection platform, a threaded rod is arranged in the middle of the inner side of the slide, the left end of the threaded rod is rotatably connected with the inner side of the slide through a bearing, the threaded rod is threadedly connected with the screw hole on the central protrusion at the bottom of the moving plate, the motor is fixedly installed in the middle of the right end of the detection platform, and the output shaft of the motor passes through the through hole arranged on the detection platform and is fixedly connected with the right end of the threaded rod. Through the combination of the motor, the threaded rod and the slide, the motor can drive the threaded rod to drive the moving plate to move on the slide rail.

[0006] As a preferred technical solution of the utility model, a temperature controller is fixedly installed on the top of the heating box, and the temperature controller is electrically connected to the electric heating rod. The design of the temperature controller can accurately control the heating temperature of the electric heating rod.

[0007] As a preferred technical solution of the utility model, it also includes a solenoid valve, two of which are provided, and the solenoid valves are respectively provided at the front and rear ends of the shunt pipe. The solenoid valve is designed to control the on-off of the gas in the shunt pipe.

[0008] As a preferred technical solution of the utility model, it also includes a pipe support platform, two of which are provided, and the pipe support platforms are symmetrically arranged in the middle of the upper surface of the detection platform in front and back, and the pipe support platforms are located in the same central axis as the pipe end plugging clamp 1 and the pipe end plugging clamp 2. The pipe support platform is designed to support the pipe to be detected.

[0009] As a preferred technical solution of the utility model, it also includes a controller, which is fixedly mounted on the front end of the bottom extension plate at the left end of the test bench, and the output end of the controller is electrically connected to the input end of the motor, the electric heating rod, the air pump and the electromagnetic valve, and the input end of the controller is electrically connected to the output end of the infrared thermal imager, the temperature controller and the external power supply. The controller is configured to receive and process signals from the infrared thermal imager and the temperature sensor, and can control the motor, the electric heating rod, the air pump and the electromagnetic valve respectively.

[0010] Beneficial effects of the utility model: the utility model uses the air inlet end of the air pump to suck in external air and discharge it into the heating box through the air supply pipe. The partitions inside the heating box are staggered so that the air flows in an "S" shape inside the heating box. This design not only increases the contact area between the air and the electric heating rod and improves the heating efficiency, but also ensures uniform heating of the air during the heating process.

[0011] The heated air is evenly transported to the inside of the thermal pipe to be tested through the connecting pipe and the shunt pipe. Since the thermal pipe itself has a certain thermal insulation function, if there are small gaps on the pipe, air with a certain amount of heat will easily escape from these gaps. At this time, the infrared thermal imager can quickly capture these temperature changes, thereby clearly locating the leak. This detection method is not only highly accurate, but also can display the leak in real time, which provides great convenience for subsequent maintenance work;

[0012] In addition, the pressure gauge is used to detect the air pressure inside the thermal pipeline. This function not only provides another detection method, but also makes the detection results more comprehensive and reliable;

[0013] In summary, the pipeline air tightness test bench has the advantages of high detection accuracy, convenient operation and strong practicality. It can quickly and accurately detect the air tightness of thermal pipelines, and can facilitate staff to find the leakage location, which greatly improves the efficiency of thermal pipeline air tightness detection and finding pipeline leakage locations. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the cross-sectional structure of the utility model;

[0016] Figure 3 This is a schematic diagram of the partial cross-section structure of the utility model. Figure 1 ;

[0017] Figure 4 This is a schematic diagram of the partial cross-section structure of the utility model. Figure 2 .

[0018] In the figure: 1 testing table, 2 fixed plate, 3 controller, 4 moving plate, 5 driving assembly, 51 motor, 52 threaded rod, 53 slide, 6 pipe end plugging clamp 1, 7 pipe end plugging clamp 2, 8 infrared thermal imager, 9 air heating assembly, 91 heating box, 92 partition, 93 electric heating rod, 94 connecting pipe, 95 temperature controller, 10 air pump, 11 air supply pipe, 12 shunt pipe, 13 solenoid valve, 14 pressure gauge, 15 pipeline support platform, 16 slide rail. DETAILED DESCRIPTION

[0019] Example 1

[0020] like Figures 1 to 4As shown, the utility model discloses a pipeline air tightness detection platform, and the technical scheme adopted is that it comprises a detection platform 1, and a slide rail 16 is symmetrically arranged at the front and rear ends of the upper surface of the detection platform 1, and a movable plate 4 is slidably mounted on the slide rail 16, and a protrusion arranged at the bottom center of the movable plate 4 is drivingly connected with a driving component 5 arranged at the middle part of the right end of the detection platform 1, and the driving component 5 is composed of a motor 51, a threaded rod 52 and a slide groove 53, and the slide groove 53 is arranged at the middle part of the right end of the detection platform 1, and a threaded rod 52 is arranged at the middle part of the inner side of the slide groove 53, and the left end of the threaded rod 52 is rotatably connected with the inner side of the slide groove 53 through a bearing, and the threaded rod 52 is threadedly connected with the screw hole on the central protrusion at the bottom of the movable plate 4, and the motor 51 is fixedly mounted at the middle part of the right end of the detection platform 1, and the motor 51 The output shaft passes through the through hole set on the detection platform 1 and is fixedly connected with the right end of the threaded rod 52. The motor 51 serves as a driving source and starts to drive the threaded rod 52 to rotate. Since the threaded rod 52 is threadedly connected to the screw hole on the bottom protrusion of the moving plate 4, the rotation of the threaded rod will be converted into a linear sliding of the moving plate 4 on the slide rail 16. The right side of the moving plate 4 is symmetrically provided with a barometer 14. The detection ends of the barometer 14 are respectively located at the inner center of the pipe end sealing clamp 6 symmetrically provided on the left side of the moving plate 4. A fixed plate 2 is provided at the top left end of the detection platform 1. A shunt pipe 12 is provided on the top left side of the fixed plate 2. The shunt pipe 12 is a "U"-shaped structure. The front and rear ends of the shunt pipe 12 are respectively connected to the pipe end sealing clamps 6 provided on the right side of the fixed plate 2 The interior of the plugging member 27 is connected, and the pipe end plugging member 27 is respectively located in the same central axis as the pipe end plugging member 16, and also includes a solenoid valve 13. Two solenoid valves 13 are provided. The solenoid valves 13 are respectively arranged at the front and rear ends of the shunt pipe 12. The solenoid valve 13 can control the gas flow rate delivered by the shunt pipe 12 to the pipe end plugging member 27 and the gas on and off. An infrared thermal imager 8 is respectively arranged above the pipe end plugging member 27, and the infrared thermal imager 8 is respectively fixedly installed on the top of the fixed plate 2. An air heating component 9 is arranged below the shunt pipe 12. The air heating component 9 consists of a heating box 91, a partition 92, an electric heating rod 93 and a connecting pipe 94. An air pump 10 is arranged behind the heating box 91, and the air pump 10 is connected to the The heating boxes 91 are fixedly mounted on the extension plates arranged at the bottom of the left end of the testing platform 1, the exhaust end of the air pump 10 is provided with an air supply pipe 11, the other end of the air supply pipe 11 is communicated with the interior of the heating box 91, the interior of the heating box 91 is staggered with partitions 92 at equal distances, and electric heating rods 93 are arranged between the partitions 92, the upper and lower ends of the electric heating rods 93 are respectively fixedly connected with the upper and lower sides of the interior of the heating box 91, a temperature controller 95 is fixedly mounted on the top of the heating box 91, and the temperature controller 95 is electrically connected to the electric heating rod 93, the temperature controller 95 sets the heating temperature of the electric heating rod 93, a connecting pipe 94 is arranged at the front end of the right side of the heating box 91, the other end of the connecting pipe 94 is communicated with the middle part of the shunt pipe 12, and is operated through the air pump 10,The air inlet end of the air pump 10 discharges the external air into the interior of the heating box 91 through the air delivery pipe 11. Since the partitions 92 inside the heating box 91 are staggered, the air entering the heating box 91 flows in an "S" shape, extending the residence time of the air in the heating box to ensure that the air is fully heated. The connecting pipe 94 at the front right side of the heating box 91 delivers the heated air to the thermal pipeline to be tested through the diversion pipe 12. Since the thermal pipeline has a certain thermal insulation function, if there is a small gap on the pipeline, the infrared thermal imager 8 can clearly detect the leak position. It also includes a pipeline support platform 15, and the pipeline support platform 15 is set There are two, the pipe support platform 15 is symmetrically arranged in the middle of the upper surface of the detection platform 1, and the pipe support platform 15 is located in the same central axis as the pipe end plugging clamp 1 6 and the pipe end plugging clamp 2 7. The pipe support platform 15 can ensure that the thermal pipeline remains stable during the detection process to avoid unnecessary movement or shaking. It also includes a controller 3, which is fixedly installed at the front end of the bottom extension plate at the left end of the detection platform 1. The output end of the controller 3 is electrically connected to the input end of the motor 51, the electric heating rod 93, the air pump 10 and the solenoid valve 13. The input end of the controller 3 is electrically connected to the output end of the infrared thermal imager 8, the temperature controller 95 and the external power supply.

[0021] The working principle of the utility model is as follows: when in use, two thermal pipes to be tested of equal size and length are placed on the pipe support platform 15 respectively, and then the left ends of the pipes are respectively inserted into the interior of the pipe end plugging clamp 7, and then the motor 51 is started by the controller 3. When the motor 51 is running, the threaded rod 52 is driven to drive the movable plate 4 to slide on the slide rail 16. When the movable plate 4 is close to the pipe to be tested, the right ends of the pipes are respectively inserted into the interior of the pipe end plugging clamp 6 until the movable plate 4 presses the pipe to be tested tightly. Then the temperature controller 95 sets the heating temperature of the electric heating rod 93, so that the electric heating rod 93 heats the internal air of the heating box 91. Then the air pump 10 is started and the solenoid valve 13 is opened. Through the operation of the air pump 10, the air inlet end of the air pump 10 heats the external The air is discharged to the interior of the heating box 91 through the air supply pipe 11. Since the partitions 92 inside the heating box 91 are staggered, the air entering the heating box 91 flows in an "S" shape, and the connecting pipe 94 at the front right side of the heating box 91 transports the heated air to the thermal pipe to be tested through the diversion pipe 12. Since the thermal pipe has a certain thermal insulation function, if there are small gaps on the pipe, air with a certain amount of heat will escape from these gaps. At this time, the infrared thermal imager 8 clearly detects the heat escape position. The infrared thermal imager 8 can determine the air tightness of the thermal pipe by capturing and analyzing the images of these heat escapes. In addition, the barometer 14 can also detect the air pressure inside the thermal pipe to further improve the accuracy and reliability of the detection.

[0022] The circuit connection involved in the utility model is a common means used by those skilled in the art, and technical inspiration can be obtained through a limited number of experiments, and it belongs to the widely used existing technology.

[0023] Components not described in detail herein are prior art.

[0024] Although the specific embodiments of the present invention are described in detail above, the present invention is not limited to the above embodiments. Various changes can be made within the knowledge of ordinary technicians in the field without departing from the purpose of the present invention, and modifications or deformations without creative labor are still within the scope of protection of the present invention.

Claims

1. A pipeline air tightness test bench, comprising a test bench (1), characterized in that: A slide rail (16) is symmetrically arranged at the front and rear right end of the upper surface of the detection platform (1), a movable plate (4) is slidably mounted on the slide rail (16), and a protrusion arranged at the bottom center of the movable plate (4) is drivingly connected to a driving component (5) arranged at the middle of the right end of the detection platform (1), a barometer (14) is symmetrically arranged at the front and rear right side of the movable plate (4), and the detection end of the barometer (14) is respectively located at the inner center of a pipe end blocking fixture (6) symmetrically arranged at the front and rear left side of the movable plate (4), and the detection platform A fixing plate (2) is arranged at the top left end of the fixing plate (2), a shunt pipe (12) is arranged at the top left end of the fixing plate (2), the shunt pipe (12) is a "U"-shaped structure, the front and rear ends of the shunt pipe (12) are respectively connected to the interior of the second pipe end plugging fixture (7) arranged at the front and rear ends of the right side of the fixing plate (2), and the second pipe end plugging fixture (7) is respectively located in the same central axis as the first pipe end plugging fixture (6), and an infrared thermal imager (8) is respectively arranged above the second pipe end plugging fixture (7), and The infrared thermal imagers (8) are fixedly mounted on the top of the fixed plate (2), and an air heating assembly (9) is arranged below the diverter pipe (12). The air heating assembly (9) is composed of a heating box (91), a partition plate (92), an electric heating rod (93) and a connecting pipe (94). An air pump (10) is arranged behind the heating box (91), and the air pump (10) and the heating box (91) are fixedly mounted on an extension plate arranged at the bottom of the left end of the detection platform (1), and an exhaust end of the air pump (10) is arranged An air supply pipe (11) is provided, the other end of which is connected to the interior of a heating box (91), the interior of the heating box (91) is provided with partitions (92) arranged at equal distances and staggered, and electric heating rods (93) are provided between the partitions (92), the upper and lower ends of the electric heating rods (93) are respectively fixedly connected to the upper and lower sides of the interior of the heating box (91), and a connecting pipe (94) is provided at the front end of the right side of the heating box (91), and the other end of the connecting pipe (94) is connected to the middle part of the shunt pipe (12).

2. A pipeline air tightness testing platform according to claim 1, characterized in that: The driving assembly (5) is composed of a motor (51), a threaded rod (52) and a slide groove (53). The slide groove (53) is arranged in the middle of the right end of the detection platform (1). The threaded rod (52) is arranged in the middle of the inner side of the slide groove (53). The left end of the threaded rod (52) is rotatably connected to the inner side of the slide groove (53) through a bearing. The threaded rod (52) is threadedly connected to the screw hole on the central protrusion at the bottom of the moving plate (4). The motor (51) is fixedly installed in the middle of the right end of the detection platform (1). The output shaft of the motor (51) passes through a through hole arranged on the detection platform (1) and is fixedly connected to the right end of the threaded rod (52).

3. A pipeline air tightness testing platform according to claim 1, characterized in that: A temperature controller (95) is fixedly installed on the top of the heating box (91), and the temperature controller (95) is electrically connected to the electric heating rod (93).

4. The pipeline air tightness testing platform according to claim 1, characterized in that: It also includes a solenoid valve (13), two of which are provided, and the solenoid valves (13) are respectively provided at the front and rear ends of the shunt pipe (12).

5. The pipeline air tightness testing platform according to claim 1, characterized in that: It also includes a pipeline support platform (15), wherein two pipeline support platforms (15) are provided, and the pipeline support platforms (15) are symmetrically arranged in the middle of the upper surface of the detection platform (1) in the front and rear directions, and the pipeline support platforms (15) are respectively located in the same central axis as the first pipe end sealing clamp (6) and the second pipe end sealing clamp (7).

6. A pipeline air tightness testing platform according to claim 1, characterized in that: The device also comprises a controller (3), wherein the controller (3) is fixedly mounted at the front end of the bottom extension plate at the left end of the detection platform (1), the output end of the controller (3) is electrically connected to the input end of the motor (51), the electric heating rod (93), the air pump (10) and the electromagnetic valve (13), and the input end of the controller (3) is electrically connected to the output end of the infrared thermal imager (8), the temperature controller (95) and the external power supply.

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