Gas leakage detection device for gas station

Abstract

The utility model discloses a gas leakage detection device for a gas station, which relates to the technical field of gas leakage detection and comprises two gas pipelines, flanges are fixedly mounted at adjacent ends of the two gas pipelines, two flanges are fixedly mounted at adjacent ends of the two gas pipelines, and the gas leakage detection device is arranged between the two gas pipelines. The surfaces of the two flanges are detachably sleeved with a sealing assembly, the sealing assembly comprises a first sealing sleeve, the top surface of the first sealing sleeve is rotationally provided with a second sealing sleeve, and when air leaks from the joint of the two flanges, the sealing state of the joint of the two flanges is detected in real time through a detection probe installed in a detection pipe under the cooperation of a detection groove; after gas leakage is detected, gas leakage is transmitted into the detection device body through the detection probe, alarm processing is carried out through the alarm, a worker is reminded to handle gas leakage in time, the worker does not need to carry out regular detection on the joint of the gas pipeline, and the working intensity of the worker is relieved.

Description

Technical Field

[0001] The utility model relates to the technical field of gas leakage detection, in particular to a gas leakage detection device used in a gas filling station. Background Art

[0002] A gas station is a place that provides fuel to natural gas vehicles and trailers in the form of compressed natural gas or liquefied natural gas. With the increasing popularity of new energy sources and people's emphasis on low-carbon life and higher requirements for quality of life and living environment, more and more new energy sources are being developed and utilized by people. Among them, natural gas is one of the low-carbon new energy sources and is subsequently used in automobile fuel. Corresponding gas stations have come into being. At present, urban buses, taxis and some private cars use natural gas as fuel, which is not only low-cost but also environmentally friendly.

[0003] However, when the gas pipelines of the existing gas filling stations are in use, in order to prevent gas leakage at the connection between two adjacent gas pipelines, it is necessary for the staff to perform regular inspections on the gas pipeline connection, which increases the work intensity of the staff. Secondly, when the two gas pipelines are connected, they are mostly connected by flanges with bolts and nuts. Over time, the gas pipeline connection is prone to loosening, resulting in gas leakage and safety hazards. In view of the above problems, the inventor proposes a gas leakage detection device for gas filling stations to solve the above problems. Utility Model Content

[0004] In order to solve the problem that when the gas pipelines of existing gas filling stations are in use, in order to prevent gas leakage at the connection between two adjacent gas pipelines, it is necessary for staff to perform regular inspections on the gas pipeline connections, which increases the workload of the staff; the purpose of the utility model is to provide a gas leakage detection device for a gas filling station.

[0005] In order to solve the above technical problems, the utility model adopts the following technical solutions: a gas leakage detection device for a gas filling station, comprising a gas pipeline, the number of the gas pipelines is two, the adjacent ends of the two gas pipelines are fixedly installed with flanges, the number of flanges is two, the surfaces of the two flanges are detachably sleeved with sealing components, the sealing components include a first sealing sleeve, the top surface of the first sealing sleeve is rotatably installed with a second sealing sleeve, the middle of the first sealing sleeve and the second sealing sleeve are provided with a detection groove, the detection groove and the flange cooperate with each other, a detection tube is fixedly installed in the middle of the top surface of the second sealing sleeve, the detection groove and the detection tube are interconnected, a fixing frame is fixedly installed on the surface of the second sealing sleeve, a detection device body is detachably installed on the top surface of the fixing frame, the detection device body includes a detection probe, the detection probe damping is inserted in the detection tube, the detection probe and the detection tube cooperate with each other, an alarm is fixedly installed on the top surface of the detection device body, and the alarm is electrically connected to the detection device body;

[0006] After the two adjacent gas pipelines are spliced ​​and fixed by two flanges, the connection between the two gas pipelines is reinforced and sealed by the first sealing sleeve and the second sealing sleeve. Under the action of the sealing assembly, the problem of the two gas pipelines being connected only by flanges with bolts and nuts, which makes the gas pipeline connection easy to loosen over time, leading to gas leakage and potential safety hazards, is solved. When there is a gas leak at the connection between the two flanges, with the cooperation of the detection groove, the sealing status of the two flange connections is detected in real time by the detection probe installed in the detection tube. After the gas leak is detected, the gas leak is transmitted to the detection device body through the detection probe, and the alarm is processed by the alarm to remind the staff to deal with the gas leak in time. There is no need for the staff to conduct regular inspections on the gas pipeline connection, thereby reducing the workload of the staff.

[0007] Preferably, a rotating shaft is symmetrically installed on one side of the top surface of the first sealing sleeve, and a rotating sleeve is symmetrically installed on one side of the bottom surface of the second sealing sleeve. The rotating sleeve is arranged on the surface of the rotating shaft, and the rotating shaft and the rotating sleeve cooperate with each other. Through the cooperation between the two rotating shafts and the two rotating sleeves, it is convenient to control the opening and closing of the second sealing sleeve and the first sealing sleeve to complete the disassembly and assembly on the flange surface.

[0008] Preferably, fixing parts are symmetrically installed on one side of the surface of the first sealing sleeve and the second sealing sleeve, and the two fixing parts are threaded with positioning buckles, and the positioning buckles cooperate with the fixing parts. There are four fixing parts in number, and two adjacent ones are a group. The first sealing sleeve and the second sealing sleeve are limited and fixed by two groups of fixing parts in cooperation with two positioning buckles, thereby completing the sealing of the connection between the two flanges. Evenly distributed bolts are installed in the two flanges, and nuts are threadedly provided on one end of the bolts. The bolts and the nuts cooperate with each other, and the connection and fixation of the adjacent sides of the two gas pipelines are completed by the two flanges in cooperation with multiple groups of bolts and nuts.

[0009] Preferably, fixed blocks are symmetrically installed on both sides of the detection device body, and the number of the fixed blocks is four. The four fixing blocks are threaded with threaded buckles, and the threaded buckles penetrate the fixing blocks and are threaded in the fixing frame. The detection device body is installed on the top surface of the fixing frame and fixed by the four fixing blocks cooperating with the corresponding threaded buckles, and is used for detection work at the gas pipeline connection. Rotation grooves are symmetrically opened on one side of the top surface of the first sealing sleeve, and the number of the rotation grooves is two. Two rotating shafts are respectively fixedly installed in the rotating grooves, and the two rotating shafts are respectively installed and fixed through the two rotating grooves, so as to cooperate with the rotating sleeve to control the rotation of the second sealing sleeve.

[0010] Compared with the prior art, the beneficial effects of the utility model are:

[0011] 1. In the utility model, when there is a gas leak at the connection between the two flanges, the sealing state of the two flange connections is detected in real time by the detection probe installed in the detection tube with the cooperation of the detection slot. After the gas leak is detected, it is transmitted to the detection device body through the detection probe, and the alarm is processed through the alarm to remind the staff to deal with the gas leak in time. There is no need for the staff to perform regular detection of the gas pipeline connection, which reduces the work intensity of the staff;

[0012] 2. In the utility model, after two adjacent gas pipelines are spliced ​​and fixed by two flanges, the first sealing sleeve and the second sealing sleeve are used to reinforce and seal the connection between the two gas pipelines. Under the action of the sealing assembly, the problem that when the two gas pipelines are connected, they are only connected by flanges with bolts and nuts, and the connection between the gas pipelines is prone to loosening over time, resulting in gas leakage and safety hazards is solved. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0014] Figure 1 This is a schematic diagram of the overall structure of the utility model.

[0015] Figure 2 This is a schematic diagram of the structure of the sealing component and the detection device of the utility model.

[0016] Figure 3 For this utility model Figure 2 A magnified view of the structure at center.

[0017] Figure 4 For this utility model Figure 2 The enlarged view of the structure at B in the middle.

[0018] Figure 5 For this utility model Figure 2 Enlarged view of the structure at point C in the middle.

[0019] In the figure: 1. gas pipeline; 2. flange; 3. bolt; 31. nut; 4. sealing assembly; 41. first sealing sleeve; 411. rotating shaft; 412. rotating groove; 42. second sealing sleeve; 421. rotating sleeve; 43. detection groove; 431. detection tube; 44. fixing piece; 45. positioning buckle; 5. fixing frame; 6. detection device body; 61. detection probe; 62. fixing block; 63. threaded buckle; 7. alarm. 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: Figure 1-5 As shown, the utility model provides a gas leakage detection device for a gas filling station, comprising a gas pipeline 1, the number of the gas pipelines 1 is two, the adjacent ends of the two gas pipelines 1 are fixedly installed with flanges 2, the number of the flanges 2 is two, the surfaces of the two flanges 2 are detachably sleeved with sealing components 4, the sealing component 4 comprises a first sealing sleeve 41, the top surface of the first sealing sleeve 41 is rotatably installed with a second sealing sleeve 42, the middle of the first sealing sleeve 41 and the second sealing sleeve 42 are provided with a detection groove 43, the detection groove 43 and the flange 2 cooperate with each other, a detection tube 431 is fixedly installed in the middle of the top surface of the second sealing sleeve 42, the detection groove 43 and the detection tube 431 are interconnected, a fixing frame 5 is fixedly installed on the surface of the second sealing sleeve 42, a detection device body 6 is detachably installed on the top surface of the fixing frame 5, the detection device body 6 comprises a detection probe 61, the detection probe 61 is damped and inserted in the detection tube 431, the detection probe 61 and the detection tube 431 cooperate with each other, an alarm 7 is fixedly installed on the top surface of the detection device body 6, and the alarm 7 is electrically connected to the detection device body 6;

[0022] After the two adjacent gas pipelines 1 are spliced ​​and fixed by the two flanges 2, the connection between the two gas pipelines 1 is reinforced and sealed by the first sealing sleeve 41 and the second sealing sleeve 42. Under the action of the sealing assembly 4, the problem that the two gas pipelines 1 are connected only by the flange 2 with the bolts 3 and the nuts 31 is solved. After a long time, the connection between the gas pipeline 1 is easy to loosen, resulting in gas leakage and potential safety hazards. When the connection between the two flanges 2 leaks, with the cooperation of the detection groove 43, the sealing state of the connection between the two flanges 2 is detected in real time by the detection probe 61 installed in the detection tube 431. After the leakage is detected, it is transmitted to the detection device body 6 through the detection probe 61, and the alarm is processed by the alarm 7 to remind the staff to deal with the leakage in time. There is no need for the staff to conduct regular detection of the connection between the gas pipeline 1, thereby reducing the work intensity of the staff.

[0023] A rotating shaft 411 is symmetrically installed on one side of the top surface of the first sealing sleeve 41, and a rotating sleeve 421 is symmetrically installed on one side of the bottom surface of the second sealing sleeve 42. The rotating sleeve 421 is sleeved on the surface of the rotating shaft 411, and the rotating shaft 411 and the rotating sleeve 421 cooperate with each other.

[0024] By adopting the above technical solution, through the cooperation between the two rotating shafts 411 and the two rotating sleeves 421, it is convenient to control the opening and closing of the second sealing sleeve 42 and the first sealing sleeve 41 to complete the disassembly and assembly on the surface of the flange 2.

[0025] The first sealing sleeve 41 and the second sealing sleeve 42 are symmetrically mounted with fixing members 44 on one side of the surface. The two fixing members 44 are threadedly clamped with positioning buckles 45, and the positioning buckles 45 cooperate with the fixing members 44.

[0026] By adopting the above technical solution, the number of fixing parts 44 is four, and two adjacent ones are grouped together. The first sealing sleeve 41 and the second sealing sleeve 42 are limited and fixed by two groups of fixing parts 44 and two positioning buckles 45, thereby completing the sealing of the connection between the two flanges 2.

[0027] Evenly distributed bolts 3 are installed in the two flanges 2, and a nut 31 is threadedly sleeved at one end of the bolt 3, and the bolt 3 and the nut 31 cooperate with each other;

[0028] By adopting the above technical solution, the connection and fixation of the adjacent sides of the two gas pipelines 1 are completed by two flanges 2 in conjunction with multiple groups of bolts 3 and nuts 31.

[0029] The two sides of the detection device body 6 are symmetrically mounted with fixing blocks 62, and the number of the fixing blocks 62 is four. The four fixing blocks 62 are all threadedly clamped with thread buckles 63, and the thread buckles 63 pass through the fixing blocks 62 and are threadedly clamped in the fixing frame 5;

[0030] By adopting the above technical solution, the detection device body 6 is installed on the top surface of the fixing frame 5 through four fixing blocks 62 and corresponding threaded buckles 63 for fixing, and is used for detecting the connection of the gas pipeline 1.

[0031] A rotation groove 412 is symmetrically formed on one side of the top surface of the first sealing sleeve 41. There are two rotation grooves 412. Two rotation shafts 411 are fixedly installed in the rotation grooves 412 respectively.

[0032] By adopting the above technical solution, the two rotating shafts 411 are respectively installed and fixed through the two rotating grooves 412, so as to cooperate with the rotating sleeve 421 to control the rotation of the second sealing sleeve 42.

[0033] Working principle: After the two adjacent gas pipelines 1 are spliced ​​and fixed by two flanges 2, the first sealing sleeve 41 and the second sealing sleeve 42 are used to reinforce and seal the connection between the two gas pipelines 1. Under the action of the sealing assembly 4, the problem that the connection between the two gas pipelines 1 is only connected by the flange 2 with the bolts 3 and the nuts 31, and the connection between the gas pipelines 1 is prone to loosening over time, resulting in gas leakage and potential safety hazards is solved;

[0034] When there is a gas leak at the connection between the two flanges 2, with the cooperation of the detection groove 43, the sealing state of the connection between the two flanges 2 is detected in real time through the detection probe 61 installed in the detection tube 431. After the gas leak is detected, it is transmitted to the detection device body 6 through the detection probe 61, and the alarm is processed through the alarm 7 to remind the staff to deal with the gas leak in time. There is no need for the staff to conduct regular inspections on the connection of the gas pipeline 1, which reduces the work intensity of the staff.

[0035] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A gas leak detection device for a gas filling station, comprising a gas pipeline (1), characterized in that: There are two gas pipelines (1), and one adjacent end of the two gas pipelines (1) is fixedly mounted with a flange (2). There are two flanges (2), and the surfaces of the two flanges (2) are detachably sleeved with a sealing assembly (4). The sealing assembly (4) comprises a first sealing sleeve (41), and a second sealing sleeve (42) is rotatably mounted on the top surface of the first sealing sleeve (41). A detection groove (43) is provided in the middle of the first sealing sleeve (41) and the second sealing sleeve (42), and the detection groove (43) cooperates with the flange (2); A detection tube (431) is fixedly installed in the middle of the top surface of the second sealing sleeve (42); the detection groove (43) and the detection tube (431) are interconnected; a fixing frame (5) is fixedly installed on the surface of the second sealing sleeve (42); a detection device body (6) is detachably installed on the top surface of the fixing frame (5); the detection device body (6) comprises a detection probe (61); the detection probe (61) is damped and inserted in the detection tube (431); the detection probe (61) and the detection tube (431) cooperate with each other; an alarm (7) is fixedly installed on the top surface of the detection device body (6); the alarm (7) is electrically connected to the detection device body (6).

2. A gas leak detection device for a gas filling station as claimed in claim 1, characterized in that: A rotating shaft (411) is symmetrically mounted on one side of the top surface of the first sealing sleeve (41), and a rotating sleeve (421) is symmetrically mounted on one side of the bottom surface of the second sealing sleeve (42); the rotating sleeve (421) is sleeved on the surface of the rotating shaft (411), and the rotating shaft (411) and the rotating sleeve (421) cooperate with each other.

3. A gas leak detection device for a gas filling station as claimed in claim 1, characterized in that: Fixing members (44) are symmetrically mounted on one side of the surface of the first sealing sleeve (41) and the second sealing sleeve (42), and the two fixing members (44) are threadedly clamped with positioning buckles (45), and the positioning buckles (45) and the fixing members (44) cooperate with each other.

4. A gas leak detection device for a gas filling station as claimed in claim 1, characterized in that: Evenly distributed bolts (3) are installed in the two flanges (2), one end of the bolt (3) is threadedly sleeved with a nut (31), and the bolt (3) and the nut (31) cooperate with each other.

5. A gas leak detection device for a gas filling station as claimed in claim 1, characterized in that: Fixed blocks (62) are symmetrically mounted on both sides of the detection device body (6), and the number of the fixed blocks (62) is four. A threaded buckle (63) is threadedly mounted in each of the four fixed blocks (62), and the threaded buckle (63) passes through the fixed block (62) and is threadedly mounted in the fixing frame (5).

6. A gas leak detection device for a gas filling station as claimed in claim 2, characterized in that: A rotation groove (412) is symmetrically provided on one side of the top surface of the first sealing sleeve (41), the number of the rotation grooves (412) is two, and the two rotation shafts (411) are respectively fixedly mounted in the rotation grooves (412).

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