Collection and detection device for gas pipeline leakage

Abstract

The utility model discloses a gas pipeline leakage collecting and detecting device which comprises an operation barrel, a left clamping sleeve, a right clamping sleeve, a detecting head and a fixed bottom plate sealed at the bottom end of the operation barrel, the detecting head penetrates through the fixed bottom plate and is arranged in the operation barrel, and a connecting side pipe is arranged on the side face of the left clamping sleeve in a penetrating mode. A switching assembly used for switching air inlet and air outlet is arranged in the fixed bottom plate. The corresponding faces of the left clamping sleeve and the right clamping sleeve are provided with sleeving assemblies used for sleeving the left clamping sleeve and the right clamping sleeve to the outer arc face of the pipeline. The left clamping sleeve and the right clamping sleeve are connected to the outer arc face of a gas pipeline in a sleeving mode, then the extrusion plate is driven to be attached to the inner arc face of the operation barrel to move upwards, the suction turning cover is driven to turn upwards to suck gas in the left clamping sleeve and the right clamping sleeve into the operation barrel, and then the detection head detects the gas in the operation barrel. Therefore, gas leakage detection is carried out on a section of gas pipeline in the left clamping sleeve and the right clamping sleeve, manual repeated detection by workers is not needed, and the gas pipeline leakage detection efficiency is further improved.

Description

TECHNICAL FIELD

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

[0002] Gas pipe network spreads entire city. The explosion accident due to gas pipe network leakage greatly threatens the safety of city. In the use of gas pipeline, the paint layer outside the pipeline falls off, so that the internal pipeline is in contact with air for a long time, resulting in the corrosion and rupture of the pipeline. For the leakage monitoring of urban gas pipe network, mainly includes pressure monitoring method, gas pipeline adjacent space flammable gas concentration monitoring method and the like;

[0003] The existing collection detection device of gas pipeline leakage needs to be manually detected by workers for multiple times, when the leakage of gas pipeline is close to the bottom side and the gas leakage amount is small, manual detection by workers may miss detection, so as to ensure the accuracy of gas pipeline leakage detection. Therefore, we need to propose a collection detection device of gas pipeline leakage. UTILITY MODEL CONTENT

[0004] The utility model discloses a kind of collection detection device of gas pipeline leakage, by connecting pipe, operation bucket and left jacket are sealedly connected, then left jacket and right jacket are sleeved on the outer arc surface of gas pipeline, again pull connection column drives extruded plate to stick to the inner arc surface of operation bucket and move upwards, to drive the gas in the inside of left jacket and right jacket suction into operation bucket inside, to solve the problem proposed in the above background technique.

[0005] To achieve the above object, the utility model provides the following technical scheme: a kind of collection detection device of gas pipeline leakage, including operation bucket, left jacket, right jacket, detection head and fixed bottom plate sealed to the bottom end of operation bucket, the detection head is set in operation bucket inside by the fixed bottom plate, left jacket side is through setting with connection side pipe, the fixed bottom plate is internally provided with switching component for switching air intake and exhaust;

[0006] The switching component includes connection bottom pipe, suction flap, exhaust flap and drive module, the suction flap and exhaust flap are rotationally arranged in the inside of fixed bottom plate, and the connection bottom pipe is fixedly arranged at the position corresponding to suction flap on the lower surface of fixed bottom plate, and the connection bottom pipe is sealedly connected with connection side pipe by connection pipe;

[0007] Left jacket and right jacket are provided with sleeve assembly for sleeving left jacket and right jacket on the outer arc surface of pipeline on the corresponding surface.

[0008] Preferably, the driving module comprises a clamping block, a pulling ring, an extrusion plate and a connecting column, the extrusion plate is slidingly arranged in the operation barrel, the connecting column is fixedly installed on the upper surface of the extrusion plate, the top end of the extrusion plate slidingly penetrates the upper surface of the operation barrel, the clamping block is arranged on the outer arc surface of the top end of the connecting column, and the pulling ring is fixedly arranged on the top end of the connecting column.

[0009] Preferably, the upper surface of the fixed bottom plate is provided with an air inlet and an air outlet corresponding to the air inlet cover and the air outlet cover, respectively, the air inlet cover is arranged above the air inlet, and the air outlet cover is arranged below the air outlet.

[0010] Preferably, the air outlet is fixedly provided with an air outlet limiting ring, and the air outlet cover is located below the air outlet limiting ring, the upper surface of the fixed bottom plate is provided with a group of limiting frames corresponding to the air inlet cover, and the lower surface of the fixed bottom plate is provided with another group of limiting frames corresponding to the air outlet cover.

[0011] Preferably, the sleeve assembly comprises a sealing clamping strip, a sealing clamping column and a clamping module, the sealing clamping strip is fixedly arranged on one side of the left clamping sleeve close to the right clamping sleeve, the right clamping sleeve is provided with a sealing clamping groove corresponding to the sealing clamping strip, and the sealing clamping column is provided with four groups.

[0012] Preferably, the clamping module comprises a plurality of extension plates and spring plungers, the plurality of extension plates are arranged on the outer sides of the four groups of sealing clamping columns, respectively, the plurality of spring plungers are fixedly arranged on the side surfaces of the extension plates at two ends of the left clamping sleeve, and the side surfaces of the positioning holes at two ends of the right clamping sleeve are provided with positioning holes corresponding to the spring plungers.

[0013] Preferably, the lower surface of the fixed bottom plate is provided with a detector through a supporting frame, and the detection head is arranged at the top end of the detector.

[0014] Compared with the prior art, the utility model has the advantages that:

[0015] The utility model discloses a left clamping sleeve and a right clamping sleeve are sleeved on the outer arc surface of the gas pipeline, then the extrusion plate is driven to move upward along the inner arc surface of the operation barrel by pulling the connecting column, so that the air inlet cover is turned upward to suck the gas in the left clamping sleeve and the right clamping sleeve into the operation barrel, and then the detector detects the gas in the operation barrel, thereby detecting the gas leakage of the gas pipeline in the left clamping sleeve and the right clamping sleeve.

[0016] Other features and advantages of the present application will be set forth in the following description of the application, and in part will become apparent to those skilled in the art upon examination of the following or can be learned by practice of the application. The objects and other advantages of the application can be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is the overall structure schematic diagram of the utility model;

[0018] Figure 2 It is the overall structure explosion drawing of the utility model;

[0019] Figure 3 It is the fixed bottom plate sectional view of the utility model;

[0020] Figure 4 It is the utility model Figure 2 The structure enlarged view of A in the utility model.

[0021] In the drawing: 1, operating bucket;2, support frame;3, clamping block;4, pull ring;5, connecting bottom pipe;6, left clamping sleeve;7, right clamping sleeve;8, connecting side pipe;9, extrusion plate;10, connecting column;11, fixed bottom plate;12, detection head;13, connecting pipe;14, suction cover;15, limiting frame;16, suction limiting ring;17, exhaust cover;18, exhaust limiting ring;19, sealing clamping strip;20, extension plate;21, spring plunger;22, positioning hole;23, sealing clamping groove;24, sealing clamping column. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the utility model will be described clearly and completely below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0023] As Figures 1-4As shown, the utility model provides a kind of collection detection device of gas pipeline leakage, including operation bucket 1, left jacket 6, right jacket 7, detection head 12 and fixed bottom plate 11 sealed to the bottom end of operation bucket 1, detection head 12 is set in operation bucket 1 inside by fixed bottom plate 11 penetration, and left jacket 6 side is provided with connecting side pipe 8 through;Fixed bottom plate 11 lower surface is equipped with detector by supporting frame, and detection head 12 is set in detector top end, and operation bucket 1 outer arc surface is fixedly sleeved with support frame 2, and support frame 2 is set to support operation bucket 1 whole, and detector is set in fixed bottom plate 11 lower surface, and the detection head 12 of detector is set in operation bucket 1 inside by fixed bottom plate 11 penetration, to detect the gas in operation bucket 1 inside by detection head 12.

[0024] Switching assembly for switching air inlet and exhaust is arranged in fixed bottom plate 11;Switching assembly includes connecting bottom pipe 5, air suction flip cover 14, exhaust flip cover 17 and drive module, air suction flip cover 14 and exhaust flip cover 17 are rotationally arranged in fixed bottom plate 11, and connecting bottom pipe 5 is fixedly arranged on the lower surface of fixed bottom plate 11 at the position corresponding to air suction flip cover 14, and connecting bottom pipe 5 is sealedly connected with connecting side pipe 8 by connecting pipe 13;Air suction port and exhaust port corresponding to air suction flip cover 14 and exhaust flip cover 17 are respectively formed in the upper surface of fixed bottom plate 11, connecting bottom pipe 5 is communicated with the inside of operation bucket 1 by air suction port, and then communicated with connecting side pipe 8 by connecting pipe 13, so that the gas in left jacket 6 is sucked into the inside of operation bucket 1 when air is inhaled in the inside of operation bucket 1, and air holes are formed in the top end of operation bucket 1 and the side surface of right jacket 7, so as to ensure that the gas between left jacket 6 and right jacket 7 can be sucked into the inside of operation bucket 1 and detected by detection head 12.

[0025] Specifically, the air suction port is internally fixedly provided with an air suction limiting ring 16, and the air suction cover 14 is located above the air suction limiting ring 16; the air exhaust port is internally fixedly provided with an air exhaust limiting ring 18, and the air exhaust cover 17 is located below the air exhaust limiting ring 18; the upper surface of the fixed bottom plate 11 is provided with a set of limiting racks 15 corresponding to the air suction cover 14, and the lower surface of the fixed bottom plate 11 is provided with another set of limiting racks 15 corresponding to the air exhaust cover 17; the air suction limiting ring 16 is arranged to limit the air suction cover 14, so as to avoid excessive downward turning of the air suction cover 14; the air exhaust limiting ring 18 is arranged to avoid excessive upward turning of the air exhaust cover 17; when the air in the operation barrel 1 is sucked, the air suction cover 14 and the air exhaust cover 17 are both sucked up, at this time, the air exhaust cover 17 contacts the air exhaust limiting ring 18 to block the air exhaust port, so as to ensure that the gas in the left clamping sleeve 6 can be sucked in; when the air in the operation barrel 1 is exhausted, the air suction cover 14 and the air exhaust cover 17 are both turned downward, at this time, the air suction cover 14 contacts the air suction limiting ring 16, so as to block the air suction port, thereby ensuring that the gas in the operation barrel 1 can be exhausted through the air exhaust port; and the limiting racks 15 are arranged to avoid excessive upward turning of the air suction cover 14, and the other set of limiting racks 15 are arranged to avoid excessive downward turning of the air exhaust cover 17, so that the air suction cover 14 and the air exhaust cover 17 cannot block the air suction port and the air exhaust port.

[0026] The driving module includes a clamping block 3, a pulling ring 4, an extrusion plate 9 and a connecting column 10. The extrusion plate 9 is slidingly arranged in the operation barrel 1. The connecting column 10 is fixedly installed on the upper surface of the extrusion plate 9, and the top end of the extrusion plate 9 slidingly penetrates the upper surface of the operation barrel 1. The clamping block 3 is arranged on the outer arc surface of the top end of the connecting column 10, and the pulling ring 4 is fixedly arranged on the top end of the connecting column 10. The pulling ring 4 is operated to drive the connecting column 10 to move up and down, thereby driving the extrusion plate 9 to move up and down along the inner wall of the operation barrel 1, so as to suck or exhaust the air in the operation barrel 1. When the connecting column 10 is moved to the lowest position, the clamping block 3 is clamped on the top end of the operation barrel 1, thereby avoiding excessive downward movement of the extrusion plate 9 to contact the detection head 12.

[0027] The left clamping sleeve 6 and the right clamping sleeve 7 are provided with a sleeve assembly for sleeving the left clamping sleeve 6 and the right clamping sleeve 7 on the outer arc surface of the pipeline on the corresponding surfaces. The sleeve assembly includes a sealing clamping strip 19, a sealing clamping column 24 and a clamping module. The sealing clamping strip 19 is fixedly arranged on one side of the left clamping sleeve 6 close to the right clamping sleeve 7. The right clamping sleeve 7 is provided with a sealing clamping groove 23 corresponding to the sealing clamping strip 19 on the side surface. The sealing clamping column 24 is provided with four groups, and the four groups of sealing clamping columns 24 are respectively arranged at the two ends of the left clamping sleeve 6 and the right clamping sleeve 7. The sealing clamping column 24 is arranged to contact the gas pipeline, and the sealing clamping strip 19 is clamped into the sealing clamping groove 23 to seal the connection part of the left clamping sleeve 6 and the right clamping sleeve 7, thereby avoiding excessive entry of external air into the left clamping sleeve 6 and the right clamping sleeve 7, and excessive external air, which causes the concentration of leaked gas to be reduced to cause inaccurate detection.

[0028] It is worth mentioning that the clamping module comprises a plurality of groups of extension plates 20 and spring plungers 21, the plurality of groups of extension plates 20 are respectively arranged outside the four groups of sealing clamp columns 24, and the plurality of groups of spring plungers 21 are fixedly arranged on the side surface of the extension plates 20 at the two ends of the left clamp sleeve 6 and the side surface of the positioning hole 22 at the two ends of the right clamp sleeve 7, and the positioning hole 22 corresponding to the spring plunger 21 is arranged on the side surface of the extension plate 20 of the right clamp sleeve 7, the spring plunger 21 on the side surface of the corresponding extension plate 20 of the left clamp sleeve 6 is clamped into the inside of the positioning hole 22 of the extension plate 20 of the right clamp sleeve 7, so that the stability of the left clamp sleeve 6 and the right clamp sleeve 7 to the gas pipeline sleeve is ensured.

[0029] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A device for detecting a gas pipeline leak, characterized in that, It includes: operation bucket (1), left jacket (6), right jacket (7), detection head (12) and fixed bottom plate (11) sealed to the bottom end of operation bucket (1), the detection head (12) is arranged inside operation bucket (1) through fixed bottom plate (11), the left jacket (6) side is provided with connecting side pipe (8), the fixed bottom plate (11) is provided with switching assembly for switching air inlet and exhaust inside; The switching assembly includes connecting bottom pipe (5), air suction flip cover (14), exhaust flip cover (17) and drive module, the air suction flip cover (14) and exhaust flip cover (17) are rotatably arranged inside fixed bottom plate (11), and the connecting bottom pipe (5) is fixedly arranged on the lower surface of fixed bottom plate (11) at the position corresponding to air suction flip cover (14), and the connecting bottom pipe (5) is sealingly connected with connecting side pipe (8) through connecting pipe (13); The left jacket (6) and right jacket (7) are provided with sleeve assembly for sleeving left jacket (6) and right jacket (7) on the outer arc surface of pipeline on the corresponding surface.

2. The gas pipeline leakage collecting detection device according to claim 1, characterized in that: The drive module includes clamping block (3), pull ring (4), extrusion plate (9) and connecting column (10), the extrusion plate (9) is slidingly arranged inside operation bucket (1), the connecting column (10) is fixedly installed on the upper surface of extrusion plate (9), and the top end of extrusion plate (9) slidingly penetrates the upper surface of operation bucket (1), the clamping block (3) is arranged on the top outer arc surface of connecting column (10), and the pull ring (4) is fixedly arranged on the top end of connecting column (10).

3. The gas pipeline leakage collecting detection device according to claim 2, characterized in that: The upper surface of fixed bottom plate (11) is respectively provided with air suction port and exhaust port corresponding to air suction flip cover (14) and exhaust flip cover (17), the air suction port is fixedly provided with air suction limiting ring (16) inside, and the air suction flip cover (14) is located above air suction limiting ring (16).

4. The gas pipeline leakage collecting detection device according to claim 3, characterized in that: The exhaust port is fixedly provided with exhaust limiting ring (18) inside, and the exhaust flip cover (17) is located below exhaust limiting ring (18), the upper surface of fixed bottom plate (11) is provided with a group of limiting frames (15) corresponding to air suction flip cover (14), and the lower surface of fixed bottom plate (11) is provided with another group of limiting frames (15) corresponding to exhaust flip cover (17).

5. The apparatus for collecting and detecting a gas pipe leakage according to claim 4, characterized in that: The sleeve assembly includes sealing clamping strip (19), sealing clamping column (24) and clamping module, the sealing clamping strip (19) is fixedly arranged on one side of left jacket (6) close to right jacket (7), the right jacket (7) is provided with sealing clamping groove (23) corresponding to sealing clamping strip (19) on the side, the sealing clamping column (24) is provided with four groups, and four groups of sealing clamping columns (24) are respectively arranged on both ends of left jacket (6) and right jacket (7).

6. The apparatus for collecting and detecting a gas pipe leakage according to claim 5, characterized in that: The clamping module includes a plurality of extension plates (20) and spring plungers (21), a plurality of extension plates (20) are respectively arranged on the outer sides of four sealing clamping columns (24), and a plurality of spring plungers (21) are fixedly arranged on the side surfaces of extension plates (20) on both ends of left jacket (6), and the side surfaces of positioning holes (22) on both ends of right jacket (7) are respectively provided with positioning holes (22) corresponding to spring plungers (21).

7. The gas pipeline leakage collecting detection device according to claim 1, characterized in that: The fixed bottom plate (11) lower surface is provided with a detector through a support frame, and the detection head (12) is arranged at the top end of the detector.

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