Gas tightness testing device for gas pipeline

Abstract

The utility model discloses a gas pipeline airtightness testing device, which belongs to the technical field of gas pipeline testing and comprises a shell, a gas pipeline body is arranged at the bottom of the shell, and a partition plate is mounted on the inner side of the shell and positioned above the gas pipeline body. A communicating pipe is installed at the position, close to the edge, of one side of the shell and located on the outer side of the partition plate, an infrared emission assembly is arranged above the shell, an alarm assembly is arranged on one side of the infrared emission assembly, and a length adjusting lighting device is installed at the position, located on the outer side of the gas pipeline body, of the inner side of the shell. According to the gas tightness detection device, the length adjusting lighting device is arranged, so that a worker can adjust the overall range of the gas pipeline body covered by the gas pipeline body through cooperation of a first lead screw, a movable cylinder and other structures when needed, the gas tightness detection range is adjusted, in addition, certain auxiliary lighting can be carried out through a lighting lamp when needed, and the gas tightness detection efficiency is improved. And the working capability of the device is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of gas pipeline testing, and in particular relates to a gas pipeline air tightness testing device. Background Art

[0002] Gas pipelines are pipe systems that carry natural gas or liquefied petroleum gas to homes, industries, and commercial buildings. These pipe systems consist of different types of pipes to suit different uses and environments.

[0003] Chinese patent application No. 202220321190.7 discloses a gas pipeline air tightness detection device, including a conduit and a shell, the right side of the installation cavity is connected with a connecting pipe, the other end of the connecting pipe passes through the water cavity and extends to the inside of the water cavity; the inner bottom end of the installation shell is tightly fitted with a movable plate, the upper end face of the movable plate is fixedly connected with a movable rod, the upper end of the movable rod passes through the installation shell and extends to the top of the installation shell, a spring is fixedly connected between the movable plate and the installation shell, and the upper end face of the movable rod is fixedly connected with a mounting block, so that when the alarm device fails, it is convenient to observe and judge whether gas leakage occurs at the conduit joint, so as to avoid the problem that it is difficult to timely detect the leakage at the conduit joint due to the failure of the alarm device during the detection process, and solves the problem that the existing device makes the conduit directly located in the water, and water easily penetrates into the conduit when the conduit joint leaks.

[0004] 1. The above-mentioned disclosed patent has the problem that the range of air tightness detection cannot be adjusted when needed and auxiliary lighting cannot be provided when needed, thereby reducing the working capacity of the device; 2. The above-mentioned disclosed patent has the problem that the structural position of the alarm and the like cannot be adjusted when needed, thereby reducing the practicality of the device. Utility Model Content

[0005] In order to solve the problems raised in the above background technology, the utility model provides a gas pipeline air tightness testing device, which has the characteristics of high working capacity and strong practicality.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a gas pipeline air tightness testing device, comprising a shell, a gas pipeline body is arranged at the bottom of the shell, a partition is installed on the inner side of the shell and above the gas pipeline body, a connecting pipe is installed on one side of the shell near the edge and outside the partition, an infrared emitting component is arranged above the shell, an alarm component is arranged on one side of the infrared emitting component, an adjustable lighting device is installed on the inner side of the shell and outside the gas pipeline body, and the infrared emitting component and the alarm component are connected via a position adjustment device.

[0007] Preferably, the length-adjustable lighting device includes a fixed frame, a first screw rod, a movable cylinder, a movable plate, a lighting assembly and a rotating block. The fixed frame is installed on the inner side of the outer shell and below the gas pipeline body, a rotating block is arranged on the inner side of the fixed frame, and the first screw rod is installed on both sides of the rotating block. Two movable cylinders are arranged on the outer side of the gas pipeline body, a movable plate is installed on the outer side of the movable cylinder and outside the first screw rod, and the lighting assembly is installed on the side of the fixed frame close to the gas pipeline body.

[0008] Preferably, the adjustable lighting device also includes an inner sealing ring and an outer sealing ring. The inner sealing ring is installed on the inner sides of the two ends of the two movable cylinders that are far away from each other and located on the outside of the gas pipeline body, and the outer sealing ring is installed on both sides of the outer shell and located on the outside of the two movable cylinders.

[0009] Preferably, the lighting assembly includes a transparent shell and a lighting lamp. The transparent shell is installed on a side of the fixing frame close to the gas pipeline body, and a plurality of lighting lamps are installed on the inner side of the transparent shell.

[0010] Preferably, the position adjustment device includes a fixed cylinder, a movable frame, a second screw rod and a rotating plate. The fixed cylinder is installed on the side of the outer shell close to the alarm component and the infrared emitting component, the movable frame is installed at the bottom of the alarm component and the infrared emitting component and located outside the fixed cylinder, the second screw rod is installed on the side of the fixed cylinder close to the bottom of the movable frame through a bearing, and the rotating plate is installed on the side of the second screw rod away from the fixed cylinder.

[0011] Preferably, the height of the outer top surface of the fixed cylinder is equal to the height of the inner top surface of the movable frame.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. The utility model provides a length-adjustable lighting device, so that the staff can adjust the overall range covered by the gas pipeline body through the cooperation of the first screw rod and the movable cylinder and other structures when necessary, thereby adjusting the range of air tightness detection. In addition, the device can provide certain auxiliary lighting through the lighting lamp when necessary, thereby improving the working capacity of the device.

[0014] 2. The utility model provides a position adjustment device so that the staff can adjust the position of the alarm component and other structures by cooperating with the movable frame and the second screw rod and other structures when necessary, so as to better meet the work needs in different situations and improve the practicality of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional diagram of the utility model;

[0016] Figure 2It is a three-dimensional cutaway view of the utility model;

[0017] Figure 3 It is a three-dimensional cutaway view of the length-adjustable lighting device of the utility model;

[0018] Figure 4 It is a three-dimensional cutaway view of the position adjustment device of the utility model.

[0019] In the figure: 1. outer shell; 2. adjustable lighting device; 21. fixed frame; 22. first screw rod; 23. inner sealing ring; 24. outer sealing ring; 25. moving cylinder; 26. moving plate; 27. lighting component; 271. transparent shell; 272. lighting lamp; 28. rotating block; 3. gas pipeline body; 4. partition; 5. position adjustment device; 51. fixed cylinder; 52. moving frame; 53. second screw rod; 54. rotating plate; 6. alarm component; 7. infrared emission component; 8. connecting pipe. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] Example 1

[0022] See also Figure 1-4 The utility model provides the following technical solutions: a gas pipeline air tightness testing device, comprising a shell 1, a gas pipeline body 3 is arranged at the bottom of the shell 1, a partition 4 is installed on the inner side of the shell 1 and above the gas pipeline body 3, a connecting pipe 8 is installed on one side of the shell 1 near the edge and outside the partition 4, an infrared emitting component 7 is arranged above the shell 1, an alarm component 6 is arranged on one side of the infrared emitting component 7, a length-adjustable lighting device 2 is installed on the inner side of the shell 1 and outside the gas pipeline body 3, and the infrared emitting component 7 and the alarm component 6 are connected via a position adjustment device 5.

[0023] Specifically, the length-adjustable lighting device 2 includes a fixed frame 21, a first screw rod 22, a movable cylinder 25, a movable plate 26, a lighting assembly 27 and a rotating block 28. The fixed frame 21 is installed on the inner side of the outer shell 1 and is located below the gas pipeline body 3. The rotating block 28 is arranged on the inner side of the fixed frame 21. The first screw rod 22 is installed on both sides of the rotating block 28. Two movable cylinders 25 are arranged on the outer side of the gas pipeline body 3. The movable plate 26 is installed on the outer side of the movable cylinder 25 and is located on the outer side of the first screw rod 22. The lighting assembly 27 is installed on the side of the fixed frame 21 close to the gas pipeline body 3.

[0024] By adopting the above technical solution, the staff can adjust the overall range covered by the gas pipeline body 3 through the cooperation of the first screw rod 22 and the movable cylinder 25 and other structures when necessary, thereby adjusting the range of air tightness detection.

[0025] Specifically, the length-adjustable lighting device 2 also includes an inner sealing ring 23 and an outer sealing ring 24. The inner sealing ring 23 is installed on the inner sides of the two ends of the two movable cylinders 25 that are away from each other and located on the outside of the gas pipeline body 3, and the outer sealing ring 24 is installed on both sides of the outer shell 1 and located on the outside of the two movable cylinders 25.

[0026] By adopting the above technical solution, the device can prevent the existence of gaps between the moving cylinder 25 and the gas pipeline body 3 and between the outer shell 1 and the moving cylinder 25 through the inner sealing ring 23 and the outer sealing ring 24, thereby ensuring the sealing of the device.

[0027] Specifically, the lighting assembly 27 includes a transparent shell 271 and a lighting lamp 272 . The transparent shell 271 is installed on a side of the fixing frame 21 close to the gas pipeline body 3 , and a plurality of lighting lamps 272 are installed on the inner side of the transparent shell 271 .

[0028] By adopting the above technical solution, the device can provide auxiliary lighting through the lighting lamp 272 when needed, so as to better meet the working needs in different situations. The transparent shell 271 can provide certain protection for the lighting lamp 272.

[0029] When the present embodiment is used, when the staff needs to use the device to test the air tightness of the gas pipeline body 3, the gas pipeline body 3 and the shell 1 are fixed respectively, and then the staff opens the shell 1, rotates the rotating block 28 in the fixed frame 21 of the length-adjusting lighting device 2, thereby driving the two first screw rods 22 to rotate at the same time, and the first screw rod 22 is threadedly connected to the moving plate 26, and the outer bottom surface of the moving plate 26 is close to the inner bottom surface of the shell 1, so the two first screw rods 22 drive the two moving plates 26 to move, and then drive the two moving cylinders 25 on the gas pipeline body 3. Move and adjust the range of the gas pipeline body 3 covered by the two moving cylinders 25 and the outer shell 1. The inner sealing ring 23 and the outer sealing ring 24 can ensure the sealing. Close the outer shell 1. When a leakage occurs, the leaked gas passes through the connecting pipe 8 into the water on the partition 4, thereby increasing the air pressure above the partition 4. The infrared emitting component 7 is pushed by the air pressure, and then the alarm component 6 alarms. The test work is completed. When necessary, the staff can start the various lighting lamps 272 in the lighting component 27 for auxiliary lighting, and the transparent shell 271 can protect the various lighting lamps 272.

[0030] Example 2

[0031] The difference between this embodiment and embodiment 1 is that the position adjustment device 5 includes a fixed cylinder 51, a movable frame 52, a second screw rod 53 and a rotating plate 54, the fixed cylinder 51 is installed on the side of the housing 1 close to the alarm component 6 and the infrared emitting component 7, the movable frame 52 is installed at the bottom of the alarm component 6 and the infrared emitting component 7 and located outside the fixed cylinder 51, the second screw rod 53 is installed on the side of the fixed cylinder 51 close to the bottom of the movable frame 52 through a bearing, and the rotating plate 54 is installed on the side of the second screw rod 53 away from the fixed cylinder 51.

[0032] By adopting the above technical solution, the staff can adjust the position of the alarm component 6 and other structures by cooperating with the movable frame 52 and the second screw rod 53 and other structures when necessary, so as to better meet the working needs in different situations.

[0033] Specifically, the height of the outer top surface of the fixed cylinder 51 is equal to the height of the inner top surface of the movable frame 52 .

[0034] By adopting the above technical solution, the device can ensure that the outer top surface of the fixed cylinder 51 and the inner top surface of the movable frame 52 are in close contact with each other, thereby preventing the movable frame 52 from rotating and deviating during movement, and ensuring normal operation.

[0035] When this embodiment is used, when it is necessary to adjust the position of the alarm component 6, the rotating plate 54 in the position adjustment device 5 is rotated, thereby driving the second screw rod 53 to rotate. The second screw rod 53 is threadedly connected to the movable frame 52, and the inner top surface of the movable frame 52 is in close contact with the outer top surface of the fixed cylinder 51, so the second screw rod 53 drives the movable frame 52 and the alarm component 6 and the infrared emitting component 7 thereon to move, and the infrared emitting component 7 cannot leave the range above the fixed cylinder 51. When the alarm component 6 and the infrared emitting component 7 are moved to the required position, the adjustment is completed, thereby better meeting the working needs in different situations.

[0036] The structure and principle of the shell 1 and the structure thereon, the partition 4, the alarm assembly 6 consisting of an infrared receiver, a mounting riser, a controller and an alarm, the infrared emitting assembly 7 consisting of a mounting shell, a movable plate, a movable rod, a mounting block, a spring, an infrared emitter, a delivery pipe and an air pump, and the connecting pipe 8 in the utility model have been disclosed in a gas pipeline air tightness detection device disclosed in Chinese patent application No. 202220321190.7. The working principle is that when a leak occurs at the joint of the conduit, the leaked gas enters the water in the water cavity through the connecting pipe, the air pressure in the water cavity increases, the movable plate moves up and down, the spring contracts, the movable rod moves upward, and the infrared transmitter moves to the right side of the infrared receiver. When the infrared receiver receives the infrared The signal transmitted by the transmitter transmits the received signal to the controller. The controller controls the alarm to sound an alarm to remind the user that a gas leak has occurred at the conduit joint. When the alarm fails, the user can determine whether a leak has occurred at the conduit joint by observing the height of the mounting block. When a gas leak occurs at the conduit joint, bubbles are generated in the water cavity. The observation window can be used to further observe whether a gas leak has occurred in the outer shell. The controller also controls the solenoid valve to close to prevent the gas in the conduit from continuing to transport gas to the joint to prevent more gas leakage. The controller controls the air pump to start, and the gas entering the installation shell is transported to a safe outdoor environment through the delivery pipe. By opening the two inspection doors, the rubber pad at the connector of the conduit can be easily replaced.

[0037] The working principle and use process of the utility model are as follows: when the staff needs to use the device to test the air tightness of the gas pipeline body 3, the gas pipeline body 3 and the outer shell 1 are fixed respectively, and then the staff opens the outer shell 1, rotates the rotating block 28 in the fixed frame 21 of the length-adjusting lighting device 2, thereby driving the two first screw rods 22 to rotate at the same time, the first screw rod 22 is threadedly connected with the movable plate 26, and the outer bottom surface of the movable plate 26 is close to the inner bottom surface of the outer shell 1, so the two first screw rods 22 drive the two movable plates 26 to move, and then drive the two movable cylinders 25 to move on the gas pipeline body 3, adjust the range of the gas pipeline body 3 covered by the two movable cylinders 25 and the outer shell 1, the inner sealing ring 23 and the outer sealing ring 24 can ensure the sealing, close the outer shell 1, and when a leakage occurs, the leaked gas passes through the connecting pipe 8 into the water on the partition 4, thereby increasing the partition The air pressure above the plate 4 pushes the infrared emitting component 7, which in turn causes the alarm component 6 to alarm, and the test work is completed. When necessary, the staff can start the various lighting lamps 272 in the lighting component 27 for auxiliary lighting, and the transparent shell 271 can protect the various lighting lamps 272; when it is necessary to adjust the position of the alarm component 6, the rotating plate 54 in the position adjustment device 5 is rotated, thereby driving the second screw rod 53 to rotate, the second screw rod 53 is threadedly connected to the movable frame 52, and the inner top surface of the movable frame 52 is tightly attached to the outer top surface of the fixed cylinder 51, so the second screw rod 53 drives the movable frame 52 and the alarm component 6 and infrared emitting component 7 thereon to move, and the infrared emitting component 7 cannot leave the range above the fixed cylinder 51. When the alarm component 6 and the infrared emitting component 7 are moved to the required position, the adjustment is completed, thereby better meeting the work needs in different situations.

[0038] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A gas pipeline air tightness testing device, comprising a housing, characterized in that: A gas pipeline body is arranged at the bottom of the shell, a partition is installed on the inner side of the shell and at a position above the gas pipeline body, a connecting pipe is installed on one side of the shell near the edge and at a position outside the partition, an infrared emitting component is arranged above the shell, an alarm component is arranged on one side of the infrared emitting component, an adjustable lighting device is installed on the inner side of the shell and at a position outside the gas pipeline body, and the infrared emitting component and the alarm component are connected via a position adjustment device.

2. A gas pipeline air tightness testing device according to claim 1, characterized in that: The length-adjustable lighting device includes a fixed frame, a first screw rod, a movable cylinder, a movable plate, a lighting assembly and a rotating block. The fixed frame is installed on the inner side of the outer shell and below the gas pipeline body, the rotating block is arranged on the inner side of the fixed frame, the first screw rod is installed on both sides of the rotating block, two movable cylinders are arranged on the outer side of the gas pipeline body, the movable plate is installed on the outer side of the movable cylinder and outside the first screw rod, and the lighting assembly is installed on the side of the fixed frame close to the gas pipeline body.

3. A gas pipeline air tightness testing device according to claim 2, characterized in that: The adjustable lighting device also includes an inner sealing ring and an outer sealing ring. The inner sealing ring is installed on the inner sides of the two ends of the two movable cylinders that are far away from each other and located outside the gas pipeline body, and the outer sealing ring is installed on both sides of the outer shell and located outside the two movable cylinders.

4. A gas pipeline air tightness testing device according to claim 2, characterized in that: The lighting assembly comprises a transparent shell and a lighting lamp. The transparent shell is installed on one side of the fixing frame close to the gas pipeline body, and a plurality of lighting lamps are installed on the inner side of the transparent shell.

5. A gas pipeline air tightness testing device according to claim 1, characterized in that: The position adjustment device includes a fixed cylinder, a movable frame, a second screw rod and a rotating plate. The fixed cylinder is installed on the side of the outer shell close to the alarm component and the infrared emitting component, and the movable frame is installed at the bottom of the alarm component and the infrared emitting component and located outside the fixed cylinder. The second screw rod is installed on the side of the fixed cylinder close to the bottom of the movable frame through a bearing, and the rotating plate is installed on the side of the second screw rod away from the fixed cylinder.

6. A gas pipeline air tightness testing device according to claim 5, characterized in that: The height of the outer top surface of the fixed cylinder is equal to the height of the inner top surface of the movable frame.

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