Pipeline air leakage detection device

Abstract

The utility model provides a pipeline gas leakage detection device, belongs to the technical field of gas leakage detection, and aims to solve the problem that in the prior art, a to-be-detected position of a pipeline in a narrow space is possibly far, but a worker is inconvenient to enter the narrow space to detect the to-be-detected position. Comprising a gas detector and a sprinkling can filled with soapy water, a grip is arranged on the side wall of the sprinkling can, and a clamp for clamping the gas detector is arranged between the grip and the sprinkling can; a detection pipe at the top of the gas detector is communicated with a hose, one end, far away from the detection pipe, of the hose is sequentially communicated with a telescopic pipe, a memory rod and a first detection cover, and two symmetrical pipeline fitting openings are formed in the side wall of the first detection cover. According to the utility model, the gas detector is arranged on the sprinkling can filled with soapy water, so that the device can respectively select soap gas leakage detection or pump suction type gas leakage detection according to detection conditions, and is flexible, multipurpose and convenient to carry.

Description

TECHNICAL FIELD

[0001] The utility model belongs to gas leakage detection technical field, concretely relates to a pipeline gas leakage detection device. BACKGROUND

[0002] For a power plant, gas pipeline is its lifeblood, and ensuring the safe and stable delivery of gas pipeline is the prerequisite for ensuring the stable operation of the power plant. However, the gas pipeline leakage problem is inevitable from the initial construction to the production period of the power plant. In addition to the external leakage caused by cracks and holes in the pipeline itself due to the combined effects of pipeline service life growth, human and natural factors, the most common pipeline leakage occurs at the pipeline connection such as flange, threaded interface, etc. Therefore, accurately feeding back the pipeline leakage point and timely processing through various detection devices is the key to maintaining the normal operation of the power plant.

[0003] According to the search, there are many patents for pipeline leakage detection devices in implementation, such as CN202323540734.2 "a gas leakage detection device" and CN202322791496.6 "a gas pipeline gas leakage detection device", etc. Although the above-mentioned patents are involved in fixed position detection or mobile position detection, the commonality of the above-mentioned patents is that the detection pipeline is a long straight pipeline with a certain diameter. For example, small diameter gas source pipe, gas source pipe and equipment interface or small space interface between pipeline and power machinery, etc. have poor applicability, lack of flexibility, that is, for some relatively narrow space, the pipeline to be detected may be far away, but the staff may not be convenient to enter the narrow space for detection.

[0004] In fact, the leakage detection of the above-mentioned gas pipeline and its interface and the leakage detection of the interface between the pipeline and the power machinery are the daily work of the personnel of the construction unit or the debugging unit during the equipment debugging period and the production period of the power plant. Therefore, the present patent provides a pipeline gas leakage detection device to help the above-mentioned personnel to quickly locate the leakage point. UTILITY MODEL CONTENT

[0005] Therefore, the utility model provides a pipeline gas leakage detection device to solve the problem that for some relatively narrow space, the pipeline to be detected may be far away, but the staff may not be convenient to enter the narrow space for detection.

[0006] The technical scheme adopted by the utility model is as follows:

[0007] A pipeline gas leakage detection device, comprising a gas detector and a spray bottle filled with soapy water, a handle is arranged on the side wall of the spray bottle, and a clamp for clamping the gas detector is arranged between the handle and the spray bottle; a hose is communicated with a detection tube at the top of the gas detector, one end of the hose away from the detection tube is sequentially communicated with an extension tube, a memory stick and a first detection cover, the memory stick is a hollow structure and can be plastically deformed, and two symmetrical pipeline fitting openings are arranged on the side wall of the first detection cover.

[0008] The bottom of the handle is an arc surface matched with the bottom of the gas detector. The spray bottle is a press type spray bottle, and the soap water in the spray bottle can be sprayed out by pressing the pressure head on the top of the spray bottle. A through hole is formed in the top of the handle, and the detection tube can pass through the through hole, so that the top of the handle does not damage the detection tube. After the detector is fixed on the handle by the clamp, a gap is still formed between the detector and the end of the handle, and the gripping function is not affected. The detection tube, the hose, the memory stick and the first detection cover are sequentially connected in thread, so that the device can be easily disassembled or assembled. The telescopic pipe can be an electric telescopic pipe or a manual telescopic pipe, and has the functions of extension and contraction. The memory stick is a rod-shaped object which cannot restore the original shape after deformation. The first detection cover has a semi-spherical shell structure. The memory stick and the gas detection cover have various models to meet various detection conditions. In the specific implementation of the scheme, first, the leakage detection personnel preliminarily determine the range of the gas leakage point by the sound of gas leakage, and then the leakage detection personnel use the handheld spray bottle to detect the possible leakage point (mostly various interfaces), and when the soap water has a obvious bubble breaking reaction, the leakage point position is determined, and the leakage detection process is completed. When the soap water does not have a obvious bubble breaking reaction or is not suitable for soap water leakage detection (such as gas turbine combustor gas leakage detection), a pump suction type gas leakage detection device (i.e. the gas detector) is needed. When the gas detector is used for gas leakage detection, if the detection space is too small, the first detection cover is inserted into the small space through the telescopic pipe, so that the first detection cover is located at the detection position of the pipeline. Then, the first detection cover is pushed, pulled or pressed by operating the telescopic pipe or another rod-shaped object, so that the pipeline on the first detection cover is attached to the pipeline. At this time, the leakage detection can be performed (because the position of the leakage detection process is basically determined, and the essence is that the gas concentration exceeding the specified value is detected, i.e. a closed space is not needed). When the pump suction type leakage detection device (the gas detector) displays a reading exceeding the specified value, it is determined that the detection position has gas leakage, and needs to be handled. In summary, in the utility model, the gas detector (pump suction type gas leakage detection device) is installed on the spray bottle containing soap water, so that the device can select soap gas leakage detection or pump suction type gas leakage detection according to the detection condition, is flexible and multi-purpose, and is convenient to carry. Through the telescopic pipe, the first detection cover and the memory stick, the device can detect the gas leakage of the pipeline in a small space, provides a detection device for the gas leakage detection of the small space pipeline interface or small diameter gas source pipeline in the power plant and the gas leakage detection of some places difficult to reach by manpower, improves the coverage range of the gas leakage detection of the pipeline in the power plant, and improves the safety of the operation of the power plant.

[0009] Preferably, the clamp comprises a clamping plate and a driving assembly, the bottom of the clamping plate is provided with a sliding block, the handle is provided with a sliding groove in sliding fit with the sliding block, the sliding groove is arranged along the length direction of the handle, and the driving assembly can drive the sliding block to move along the length direction of the sliding groove, so that the clamping plate is matched with the side wall of the watering can to clamp or loosen the gas detector.

[0010] In the technical scheme, it should be noted that the end of the clamping plate facing the watering can is provided with a protective pad, the protective pad is elastic and can protect the gas detector; when the gas detector needs to be fixed on the watering can, first place the gas detector on the bottom of the handle and make the gas detector adhere to the side wall of the watering can, at this time the gas detector is located between the watering can and the clamping plate, then manually rotate the knob, the knob drives the lead screw to rotate, the lead screw drives the sliding block in threaded connection therewith to move towards the gas detector until the clamping plate clamps the gas detector, thereby completing the fixation of the gas detector.

[0011] Preferably, the two ends of the clamping plate in the length direction are further respectively provided with mounting plates, the inner side of the mounting plate is provided with a spring, and the end of the spring is provided with a fastening plate. The end of the fastening plate facing the watering can is provided with a guide surface, the guide surface is an arc surface, and the two guide surfaces of the two fastening plates form an eight-shaped structure.

[0012] In the technical scheme, it should be noted that the fastening plate is provided to limit the width direction of the gas detector, prevent the clamping force of the clamping plate from being too low to cause the gas detector to fall, and in specific operation, first place the gas detector on the bottom of the handle and make the gas detector adhere to the side wall of the watering can, at this time the gas detector is located between the watering can and the clamping plate, then manually rotate the knob, the knob drives the lead screw to rotate, the lead screw drives the sliding block in threaded connection therewith to move towards the gas detector until the clamping plate and the fastening plate clamp the gas detector, in the process of clamping the gas detector by the fastening plate, the two guide surfaces of the two fastening plates form an eight-shaped structure due to the arrangement of the guide surfaces, and the two fastening plates are gradually separated by the gas detector through the arrangement of the guide surfaces, so that the spring is compressed, thereby providing the clamping force of the fastening plate on the detector.

[0013] Preferably, the telescopic pipe comprises a fixed pipe and a movable pipe, the movable pipe is in sliding connection with the inner cavity of the fixed pipe, the side wall of the movable pipe is provided with a abutting groove, the side wall of the fixed pipe is provided with a threaded hole, and the movable pipe is fixed by an abutting bolt inserted into the threaded hole and the abutting groove.

[0014] The technical scheme is characterized in that the cross section of the abutting groove is in an arc structure, the length of the abutting groove should not be too long to ensure the sealing between the fixed pipe and the telescopic pipe, that is, to ensure that the bottom of the telescopic pipe is in close contact with the inner wall of the fixed pipe; the telescopic pipe specifically comprises the fixed pipe and the moving pipe, when the length of the telescopic pipe needs to be adjusted, the moving pipe is moved to change the length of the telescopic pipe, then the abutting bolt is screwed into the screw hole and gradually abuts against the abutting groove.

[0015] Preferably, the inner wall of the pipeline fitting mouth is covered with an elastic sealing pad.

[0016] The technical scheme is characterized in that the elastic sealing pad enables the first detection cover to be fixed on the pipeline to be detected more stably.

[0017] Preferably, the utility model also comprises a second detection cover which is the same in shape as the first detection cover, and the ends of the first detection cover and the second detection cover are respectively provided with magnets which can be attracted to each other.

[0018] The technical scheme is characterized in that for the case that the pipeline to be detected is in a relatively spacious space, the worker fastens the first detection cover on the pipeline to be detected, and then fastens the second detection cover on the first detection cover through the magnetic force of the magnets to form a closed space, thereby improving the detection efficiency.

[0019] In summary, due to the adoption of the above technical scheme, the utility model has the following beneficial effects:

[0020] 1. In the utility model, the gas detector (pump suction type gas leak detection device) is installed on the watering can containing soapy water, so that the device can select soapy gas leak detection or pump suction type gas leak detection according to the detection condition, is flexible and multipurpose, and is convenient to carry;

[0021] 2. In the utility model, the telescopic pipe, the first detection cover and the memory stick are arranged, so that the device can detect the gas leakage of the pipeline in a small space, provides a set of detection device for the gas leakage detection of the small space pipeline interface or small diameter gas source pipeline of the power plant and the gas leakage detection of some places difficult for people to reach, improves the coverage range of the pipeline gas leakage detection of the power plant, and improves the safety of the operation of the power plant;

[0022] 3. In the utility model, the fastening plate is arranged to limit the width direction of the gas detection, and prevents the gas detector from falling due to the low clamping force of the clamping plate. BRIEF DESCRIPTION OF DRAWINGS

[0023] The utility model will be explained through examples and with reference to the drawings, in which:

[0024] Figure 1 is a schematic view of the three-dimensional structure of the utility model;

[0025] Figure 2 is a schematic view of the three-dimensional structure of the spray pot and the gas detector of the utility model;

[0026] Figure 3 is Figure 2 is a schematic view of the three-dimensional structure when the gas detector is not in the middle;

[0027] Figure 4 is a schematic view of the three-dimensional structure after cutting the handle of the utility model;

[0028] Figure 5 is Figure 4 is a top view schematic diagram;

[0029] Figure 6 is a schematic view of the three-dimensional structure of the telescopic pipe of the utility model;

[0030] Figure 7 is a schematic view of the three-dimensional structure of the telescopic pipe after cutting and the disassembly of the resisting bolt;

[0031] Figure 8 is a schematic view of the three-dimensional structure of the first detection cover of the utility model;

[0032] Wherein: 1-spray pot, 2-handle, 21-through hole, 22-slotted, 3-gas detector, 31-detection tube, 32-hose, 4-clamp, 41-clip, 42-sliding block, 43-screw, 44-fastening plate, 45-knob, 46-guiding surface, 47-spring, 48-mounting plate, 5-telescopic pipe, 51-fixed pipe, 52-moving pipe, 53-resisting groove, 54-screw hole, 55-resisting bolt, 6-memory stick, 7-first detection cover, 71-pipe fitting mouth, 72-elastic sealing gasket, 73-magnet, 8-second detection cover. DETAILED DESCRIPTION

[0033] In order to make the purpose, technical scheme and advantage of the utility model embodiment clearer, the technical scheme in the utility model embodiment will be described clearly and completely below by combining the drawings in the utility model embodiment. Obviously, the described embodiment is a part of the embodiment of the utility model, rather than all the embodiments. The components of the utility model embodiment described and shown in the drawings here can be arranged and designed in various different configurations.

[0034] The following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the application as claimed, but merely represents the preferred embodiments of the application. Based on the embodiments of the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort fall within the scope of the present application.

[0035] It should be noted that the embodiments and features of the present application can be combined with each other without conflict.

[0036] It should be noted that similar reference signs and letters in the following drawings represent similar items, and therefore, once an item is defined in one drawing, it need not be further defined and explained in subsequent drawings.

[0037] In the present application, unless otherwise explicitly specified and limited, "on" or "under" of a first feature to a second feature can include that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, "on", "above" and "over" of the first feature to the second feature include that the first feature is directly above and obliquely above the second feature, or only indicates that the first feature is higher in horizontal height than the second feature. "Under", "below" and "underneath" of the first feature to the second feature include that the first feature is directly below and obliquely below the second feature, or only indicates that the first feature is lower in horizontal height than the second feature.

[0038] It should be noted that the embodiments and features of the present application can be combined with each other without conflict.

[0039] Example 1

[0040] As Figures 1-8The utility model discloses a pipeline gas leakage detection device, including gas detection appearance 3 and the spray bottle 1 of being equipped with soap water, the side wall of spray bottle 1 is equipped with handle 2, handle 2 and spray bottle 1 between be equipped with with the clamp 4 for clamping gas detection appearance 3, the detection pipe 31 of gas detection appearance 3 top intercommunication has the hose 32, the one end of hose 32 is away from detection pipe 31 and has telescopic pipe 5, memory stick 6 and first detection cover 7 in proper order intercommunication, memory stick 6 is hollow structure and can occur plastic deformation, the side wall of first detection cover 7 is equipped with two symmetrical pipeline fitting mouth 71. It needs to be explained that the bottom of handle 2 is the arc surface of adapting with the bottom of gas detection appearance 3. Spray bottle 1 is press type spray bottle 1, can through pressing the pressure head of spray bottle 1 top, make the soap water in spray bottle 1 inside spouts, the top of handle 2 is equipped with the through hole 21 of being available for detection pipe 31 to pass through, to prevent handle 2 top to cause the bruise damage of detection pipe 31, after detection appearance is fixed on handle 2 by clamp 4, still have a part gap between detection appearance and the end of handle 2, do not affect the holding function, detection pipe 31, hose 32, memory stick 6 and first detection cover 7 are in proper order for the threaded connection, to facilitate disassembly or assembly, telescopic pipe 5 can be electric telescopic pipe 5, also can be manual telescopic pipe 5, it has the function of elongation or contraction, memory stick 6 is the rod-shaped object after its deformation, will not restore the original shape, plastic shape, first detection cover 7 is hemispherical shell structure, memory stick 6 and gas detection cover have multiple models to guarantee to satisfy various different detection conditions, when the scheme is implemented: first, the leakage detection personnel first preliminary positioning point judgement is done to gas leakage point range through gas leakage sound, then the leakage detection personnel uses hand -held spray bottle 1 to carry out the leakage detection to possible leakage point (mostly various interfaces), when soap water has obvious foam broken reaction, then determine the leakage point position, and the leakage detection process ends, when the leakage detection soap water does not have obvious foam broken reaction or is not suitable for the application scene (such as gas turbine combustor gas leakage) of leakage detection of soap water, then need to use the pump suction type gas leakage detection device to carry out gas leakage (namely gas detection appearance 3). When using gas detection appearance 3 to carry out gas leakage, if the detection space is too small, then the staff through telescopic pipe 5 will first detection cover 7 be inserted into the small space, make first detection cover 7 be located in the pipe detection area, then through the operation telescopic pipe 5 or through another rod-shaped object to top, push or press first detection cover 7, make pipeline fitting mouth 71 on first detection cover 7 be fitted on the pipeline, at this moment, can carry out leakage detection (because the position of this set of leakage detection process is basically determined, essentially only need to detect that there is the gas concentration exceeding the specified value, then it is explained that there is gas leakage, namely need not to use the closed space), when the pump suction type leakage detection device (gas detection appearance 3) shows that the reading exceeds the specified value, then determine that the detection site has gas leakage, need to handle.In summary, the gas detector 3 (pump suction type gas leak detection device) is installed on the watering can 1 containing soapy water, so that the device can select soapy gas leak detection or pump suction type gas leak detection according to the detection condition, is flexible and multi-purpose, and is convenient to carry; the telescopic pipe 5, the first detection cover 7 and the memory stick 6 are arranged, so that the device can detect the gas leakage of the pipeline in the narrow space, provides a set of detection device for the gas leakage detection of the small space pipeline interface or the small diameter gas source pipeline of the power plant and the gas leakage detection of some places difficult for manpower to reach, improves the coverage range of the power plant for the pipeline gas leakage detection, and improves the safety of the power plant operation.

[0041] As Figure 8 shown, in the embodiment, the inner wall of the pipeline fitting port 71 is covered with an elastic sealing pad 72. It should be noted that the elastic sealing pad 72 enables the first detection cover 7 to be stably fixed on the pipeline 31 to be detected.

[0042] As Figure 1 and Figure 8 shown, in the embodiment, a second detection cover 8 identical in shape to the first detection cover 7 is further included, and the ends of the first detection cover 7 and the second detection cover 8 are respectively provided with magnets 73 that can be attracted to each other. It should be noted that for the case that the pipeline 31 to be detected is in a relatively spacious space, the worker fastens the first detection cover 7 on the pipeline 31 to be detected, and then fastens the second detection cover 8 on the first detection cover 7 through the magnetic force of the magnets 73, so that a closed space is formed, and the detection efficiency is improved.

[0043] Embodiment 2

[0044] As Figure 4 and Figure 5As shown, the embodiment is substantially the same as the above embodiment, the difference is that the clamp 4 comprises a clamp plate 41 and a driving assembly, the bottom of the clamp plate 41 is provided with a sliding block 42, the handle 2 is provided with a sliding groove 22 which is in sliding cooperation with the sliding block 42, the sliding groove 22 is arranged along the length direction of the handle 2, the driving assembly can drive the sliding block 42 to move along the length direction of the sliding groove 22, so that the clamp plate 41 cooperates with the side wall of the watering can 1 to clamp or loosen the gas detector 3. The driving assembly comprises a lead screw 43 and a knob 45, the lead screw 43 is rotationally connected in the sliding groove 22, the lead screw 43 is threadedly connected with the sliding block 42, one end of the lead screw 43 penetrates out of the handle 2 and is connected with the knob 45. It should be noted that the end of the clamp plate 41 which is close to the watering can 1 is provided with a protective pad, the protective pad is elastic and can protect the gas detector 3; when it is needed to fix the gas detector 3 on the watering can 1, first, the gas detector 3 is placed on the bottom of the handle 2 and the gas detector 3 is close to the side wall of the watering can 1, at this time, the gas detector 3 is located between the watering can 1 and the clamp plate 41, then the staff manually rotates the knob 45, the knob 45 drives the lead screw 43 to rotate, the lead screw 43 drives the sliding block 42 which is threadedly connected therewith to move towards the gas detector 3 until the clamp plate 41 clamps the gas detector 3, that is, the fixing of the gas detector 3 is completed.

[0045] As shown in Figure 4 and Figure 5 , the two ends of the clamp plate 41 in the length direction are also respectively provided with mounting plates 48, the inner side of the mounting plate 48 is provided with a spring 47, and the end of the spring 47 is provided with a fastening plate 44. The end of the fastening plate 44 which is close to the watering can 1 is provided with a guide surface 46, the guide surface 46 is an arc surface, and the two guide surfaces 46 between the two fastening plates 44 are in an eight-shaped structure. It should be noted that the fastening plate 44 is arranged to limit the width direction of the gas detection, so as to prevent the clamp plate 41 from falling due to the low clamping force. Specifically, first, the gas detector 3 is placed on the bottom of the handle 2 and the gas detector 3 is close to the side wall of the watering can 1, at this time, the gas detector 3 is located between the watering can 1 and the clamp plate 41, then the staff manually rotates the knob 45, the knob 45 drives the lead screw 43 to rotate, the lead screw 43 drives the sliding block 42 which is threadedly connected therewith to move towards the gas detector 3 until the clamp plate 41 and the fastening plate 44 clamp the gas detector 3, in the process of clamping the gas detector 3 by the fastening plate 44, due to the arrangement of the guide surface 46, the two guide surfaces 46 between the two fastening plates 44 are in an eight-shaped structure, and then the two fastening plates 44 are gradually separated by the gas detector 3 through the arrangement of the guide surface 46, so that the spring 47 is compressed, and then the clamping force of the fastening plate 44 on the detector is provided.

[0046] Embodiment 3

[0047] As Figure 6 and Figure 7 As shown in the drawings, the embodiment is basically the same as the above-mentioned embodiment, and the difference lies in that the telescopic pipe 5 comprises a fixed pipe 51 and a movable pipe 52, the movable pipe 52 is in sliding connection with the inner cavity of the fixed pipe 51, a side wall of the movable pipe 52 is provided with a abutting groove 53, a side wall of the fixed pipe 51 is provided with a threaded hole 54, and the movable pipe 52 is fixed by inserting an abutting bolt 55 into the threaded hole 54 and the abutting groove 53. It should be noted that the cross section of the abutting groove 53 is arc-shaped structure, in order to ensure the sealing between the fixed pipe 51 and the telescopic pipe 5, the length of the abutting groove 53 should not be too long, that is, the bottom of the telescopic pipe 5 should be in close contact with the inner wall of the fixed pipe 51; the telescopic pipe 5 specifically comprises the fixed pipe 51 and the movable pipe 52, when it is necessary to adjust the length of the telescopic pipe 5, the movable pipe 52 is moved, so that the length of the movable pipe 52 exposed to the fixed pipe 51 changes, then the abutting bolt 55 is screwed into the threaded hole 54, and the abutting bolt 55 is gradually abutted in the abutting groove 53.

[0048] The principle of the utility model is:

[0049] Firstly, the gas detector 3 is placed at the bottom of the handle 2, and the gas detector 3 is attached to the side wall of the watering can 1, at this time, the gas detector 3 is located between the watering can 1 and the clamping plate 41, then the staff manually rotates the knob 45, the knob 45 drives the lead screw 43 to rotate, the lead screw 43 drives the sliding block 42 threadedly connected with the lead screw 43 to move towards the gas detector 3 until the clamping plate 41 and the fastening plate 44 clamp the gas detector 3, in the process that the fastening plate 44 clamps the gas detector 3, due to the guide surface 46, the two guide surfaces 46 of the two fastening plates 44 are in an eight-shaped structure, and then the two fastening plates 44 are gradually separated by the gas detector 3 through the arrangement of the guide surface 46, so that the spring 47 is compressed, and then the clamping force of the fastening plate 44 on the detector is provided.

[0050] Then, the leak detector first preliminarily locates the judgment point of the gas leakage point range through the gas leakage sound, then the leak detector uses the handheld watering can 1 to detect the possible leakage point (mostly various types of interfaces), when the soap water has obvious foam breaking reaction, the leakage point position is determined, and the leak detection process is completed; when the leak detection soap water does not have obvious foam breaking reaction or is not suitable for the application scene of the leak detection soap water (such as the gas leakage of a gas turbine combustor), the pump suction type gas leakage detection device needs to be used for gas leakage detection (that is, the gas detector 3).

[0051] When the gas detector 3 is used to detect gas leakage, if the detection space is too small, the worker connects the detection tube 31, the hose 32, the telescopic tube 5, the memory stick 6 and the first detection cover 7 in sequence, then the worker inserts the first detection cover 7 into the small space through the telescopic tube 5, so that the first detection cover 7 is located at the position to be detected of the pipeline, then the worker operates the telescopic tube 5 or another stick-shaped object to push, pull or press the first detection cover 7, so that the pipeline fitting port 71 on the first detection cover 7 is fitted on the pipeline, at this time, the leakage detection can be performed (because the position of this leakage detection process is basically determined, and the essence is that as long as the gas concentration exceeding the specified value is detected, it is indicated that there is gas leakage, that is, a closed space is not needed), when the pump suction type leakage detection device (the gas detector 3) shows that the reading exceeds the specified value, it is determined that the detection position has gas leakage, which needs to be treated.

[0052] For the case that the detection pipeline 31 is in a relatively spacious space, after the worker buckles the first detection cover 7 on the detection pipeline 31, the worker buckles the second detection cover 8 on the first detection cover 7 through the magnetic force of the magnet 73, so as to form a closed space and improve the detection efficiency.

[0053] The circuit, electronic components and modules involved are prior art, and those skilled in the art can realize them without further description, and the content protected by the utility model does not involve improvement of software and methods.

[0054] The embodiments in the specification are described in a progressive manner, and each embodiment focuses on the difference from other embodiments, and the same or similar parts between the embodiments can be referred to each other.

[0055] The above description of the disclosed embodiments enables those skilled in the art to implement or use the utility model. Various modifications of the embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the utility model. Therefore, the utility model will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A pipe leak detection device, characterized in that, It includes a gas detector (3) and a spray bottle (1) containing soapy water. The spray bottle (1) has a handle (2) on its side wall and a clamp (4) for holding the gas detector (3) between the handle (2) and the spray bottle (1). The gas detector (3) has a detection tube (31) at the top connected to a flexible tube (32). The end of the flexible tube (32) away from the detection tube (31) is connected to a telescopic tube (5), a memory stick (6) and a first detection cover (7) in sequence. The memory stick (6) is a hollow structure and can undergo plastic deformation. The first detection cover (7) has two symmetrical pipe fitting ports (71) on its side wall.

2. The pipeline leak detection device according to claim 1, characterized in that, The clamp (4) includes a clamping plate (41) and a driving assembly. The bottom of the clamping plate (41) is provided with a slider (42). The handle (2) is provided with a sliding groove (22) that slides with the slider (42). The sliding groove (22) is arranged along the length direction of the handle (2). The driving assembly can drive the slider (42) to move along the length direction of the sliding groove (22), so that the clamping plate (41) cooperates with the side wall of the spray bottle (1) to clamp or release the gas detector (3).

3. The pipeline leak detection device according to claim 2, characterized in that, The drive assembly includes a lead screw (43) and a knob (45). The lead screw (43) is rotatably connected in a slide groove (22). The lead screw (43) is threadedly connected to a slider (42). One end of the lead screw (43) extends out of the handle (2) and is connected to the knob (45).

4. The pipeline leak detection device according to claim 2, characterized in that, The clamp (41) is provided with mounting plates (48) at both ends along its length. The mounting plates (48) are provided with springs (47) on their inner sides and with fastening plates (44) at their ends.

5. A pipeline leak detection device according to claim 4, characterized in that, The fastening plate (44) has a guide surface (46) at one end facing the spray bottle (1). The guide surface (46) is an arc-shaped surface, and the two guide surfaces (46) of the two fastening plates (44) form a figure-eight structure.

6. A pipeline leak detection device according to claim 2, characterized in that, The bottom of the grip (2) is an arc-shaped surface that is adapted to the bottom of the gas detector (3).

7. A pipeline leak detection device according to claim 1, characterized in that, The telescopic tube (5) includes a fixed tube (51) and a movable tube (52). The movable tube (52) is slidably connected to the inner cavity of the fixed tube (51). The side wall of the movable tube (52) is provided with a clamping groove (53). The side wall of the fixed tube (51) is provided with a threaded hole (54). The movable tube (52) is fixed by a clamping bolt (55) inserted into the threaded hole (54) and the clamping groove (53).

8. A pipeline leak detection device according to claim 1, characterized in that, The inner wall of the pipe fitting opening (71) is covered with an elastic sealing gasket (72).

9. A pipeline leak detection device according to claim 1, characterized in that, It also includes a second detection cover (8) with the same shape as the first detection cover (7), and the ends of the first detection cover (7) and the second detection cover (8) are respectively provided with magnets (73) that can attract each other.

10. A pipeline leak detection device according to claim 1, characterized in that, The detection tube (31), hose (32), memory stick (6) and first detection cover (7) are connected by threads in sequence.

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