Gas conveying pipeline connecting flange with gas leakage alarm function

Abstract

The utility model relates to the technical field of pipeline connection, and discloses a gas delivery pipeline connecting flange with a gas leakage alarm, which comprises a first pipeline and a second pipeline, the end part of the first pipeline is fixedly connected with a first flange, the end part of the second pipeline is fixedly connected with a second flange, and the outer wall of the first flange is fixedly sleeved with a first fixing sleeve; a sealing plate is fixed to the side wall, close to the second flange, of the first fixing sleeve, the outer wall of the second flange is fixedly sleeved with a second fixing sleeve, a sealing groove matched with the sealing plate is formed in the side wall, close to the first flange, of the second fixing sleeve, and an alarm mechanism used for detecting combustible gas is arranged on the second fixing sleeve. The sealing plate on the first fixing sleeve is inserted into the sealing groove in the second fixing sleeve to form a cavity which is small in size and relatively closed, and when combustible gas leaks, the combustible gas concentration detector can rapidly detect gas leakage and trigger the alarm to warn workers.

Description

Technical Field

[0001] The utility model relates to the technical field of pipeline connection, and in particular to a gas transmission pipeline connecting flange with a gas leakage alarm. Background Art

[0002] Natural gas is the main fuel for gas boilers, and its main component is methane. During the operation of the gas boiler, natural gas is input into the combustion chamber through pipelines. However, gas leakage may occur at the gas pipeline connection of the boiler. When the concentration of natural gas in the air reaches about 5%-15%, it will cause explosions and fires when encountering open flames, static electricity, etc. If the ventilation effect is not good, it will also cause people to lack of oxygen, suffocate or even die, causing immeasurable losses to the unit's production safety and life and property.

[0003] The existing devices have some disadvantages during use. For example, most gas pipeline leak detection is done manually, that is, the staff uses a handheld combustible gas concentration detector to search for gas leaks along the pipeline during the inspection. Although the handheld combustible gas concentration detector is used to detect the pipeline manually, it has high reliability and comprehensive detection. However, on the one hand, it increases the labor intensity of the staff. On the other hand, the staff cannot detect the gas pipeline all the time. If a gas leak occurs during the period when the staff does not perform the detection, it will also bring safety hazards. Utility Model Content

[0004] The utility model aims to provide a gas transmission pipeline connecting flange with a gas leakage alarm to solve the problem that the staff cannot perform real-time detection on the gas pipeline.

[0005] The utility model provides the following technical solution: a gas transmission pipeline connecting flange with a gas leakage alarm, comprising a first pipeline and a second pipeline, the first pipeline end portion is fixedly connected to the first flange, the second pipeline end portion is fixedly connected to the second flange, a plurality of first bolts are connected between the first flange and the second flange, the first flange and the second flange are fixedly connected by the first bolts, a first fixing sleeve is fixedly sleeved on the outer wall of the first flange, a sealing plate is fixedly mounted on the side wall of the first fixing sleeve close to the second flange, a second fixing sleeve is fixedly sleeved on the outer wall of the second flange, a sealing groove adapted to the sealing plate is provided on the side wall of the second fixing sleeve close to the first flange, an alarm mechanism for detecting combustible gas is provided on the second fixing sleeve, and auxiliary sealing components are provided on the outer walls of the first flange and the second flange.

[0006] As a preferred embodiment of the above technical solution, the alarm mechanism includes a connecting pipe fixedly embedded in the outer wall of the second fixed sleeve, the top of the connecting pipe is threadedly connected to a mounting sleeve, the center of the mounting sleeve is fixedly connected to a combustible gas concentration detector, and the outer wall of the second fixed sleeve is also fixedly connected to a mounting platform, and an alarm is fixedly installed on the mounting platform.

[0007] As a preferred embodiment of the above technical solution, the auxiliary sealing assembly includes a first clamp and a second clamp fixedly sleeved on the outer walls of the first flange and the second flange, both ends of the first clamp and the second clamp are fixed by a second bolt, a first sealing gasket is bonded and fixed to the inner wall of the first clamp, and a second sealing gasket is bonded and fixed to the second clamp.

[0008] As a preferred embodiment of the above technical solution, a first mounting hole is formed in an annular array on the first flange, and a second mounting hole is formed in an annular array on the second flange, and the first mounting hole and the second mounting hole are used for cooperation with the first bolt.

[0009] As a preferred embodiment of the above technical solution, the bottom end of the connecting pipe is connected to the interior of the second fixing sleeve, and the detection end of the combustible gas concentration detector is inserted into the interior of the second fixing sleeve.

[0010] As a preferred embodiment of the above technical solution, the combustible gas concentration detector and the alarm are communicatively connected to a remote control center.

[0011] As a preferred embodiment of the above technical solution, the alarm is an audible and visual alarm.

[0012] As a preferred embodiment of the above technical solution, the first fixing sleeve and the second fixing sleeve are combined by a sealing plate and a sealing groove to form a sealed cavity.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] In the utility model, the sealing plate on the first fixed sleeve is inserted into the sealing groove on the second fixed sleeve to form a relatively small and relatively closed cavity. When the combustible gas leaks, the combustible gas gathers in the cavity formed by the first fixed sleeve and the second fixed sleeve. The combustible gas concentration detector can quickly detect the gas leakage and trigger the alarm to alert the staff. The staff can take timely measures according to the alarm to avoid accidents. The device can perform detection operations at any time. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional structural schematic diagram of a gas transmission pipeline connection flange with a gas leakage alarm;

[0016] Figure 2It is a schematic diagram of the explosion structure of a gas transmission pipeline connection flange with a gas leakage alarm;

[0017] Figure 3 is a schematic diagram of the three-dimensional structure of the first pipeline;

[0018] Figure 4 is a schematic diagram of the three-dimensional structure of the second pipeline;

[0019] Figure 5 Schematic diagram of the explosion structure of the alarm mechanism.

[0020] In the figure: 10, first pipeline; 11, second pipeline; 12, first flange; 121, first mounting hole; 13, second flange; 131, second mounting hole; 14, first bolt; 15, first fixing sleeve; 16, sealing plate; 17, second fixing sleeve; 18, sealing groove; 20, connecting pipe; 21, mounting sleeve; 22, combustible gas concentration detector; 23, mounting platform; 24, alarm; 30, first clamp; 301, first sealing gasket; 31, second clamp; 311, second sealing gasket; 32, second bolt. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0022] Example 1

[0023] like Figure 1 and Figure 2As shown, the utility model provides a technical solution: a gas transmission pipeline connecting flange with a gas leakage alarm, comprising a first pipeline 10 and a second pipeline 11, the end of the first pipeline 10 is fixedly connected to a first flange 12, the end of the second pipeline 11 is fixedly connected to a second flange 13, a plurality of first bolts 14 are connected between the first flange 12 and the second flange 13, the first flange 12 and the second flange 13 are fixedly connected by the first bolts 14, a first fixing sleeve 15 is fixedly sleeved on the outer wall of the first flange 12, a sealing plate 16 is fixedly mounted on the side wall of the first fixing sleeve 15 close to the second flange 13, a second fixing sleeve 17 is fixedly sleeved on the outer wall of the second flange 13, a sealing groove 18 adapted to the sealing plate 16 is opened on the side wall of the second fixing sleeve 17 close to the first flange 12, and the first The fixing sleeve 15 and the second fixing sleeve 17 are combined to form a sealed cavity through the sealing plate 16 and the sealing groove 18. The second fixing sleeve 17 is provided with an alarm mechanism for detecting combustible gas. The outer walls of the first flange 12 and the second flange 13 are provided with auxiliary sealing components. During specific use, the first pipeline 10 and the second pipeline 11 are connected through the first flange 12 and the second flange 13. The first bolt 14 is provided to tightly fix the first pipeline 10 and the second pipeline 11. The sealing plate 16 on the first fixing sleeve 15 is inserted into the sealing groove 18 on the second fixing sleeve 17 to form a relatively small and relatively closed cavity. The leaked combustible gas is detected by the provided alarm mechanism, and the provided alarm 24 sends sound and light signals to alert the staff.

[0024] As an implementation method in this embodiment, Figure 1 and Figure 5 As shown, the alarm mechanism includes a connecting pipe 20 fixedly embedded on the outer wall of the second fixing sleeve 17, a mounting sleeve 21 is threadedly connected to the top of the connecting pipe 20, a combustible gas concentration detector 22 is fixedly connected at the center of the mounting sleeve 21, a mounting platform 23 is also fixedly connected to the outer wall of the second fixing sleeve 17, an alarm 24 is fixedly installed on the mounting platform 23, the alarm 24 adopts an audible and visual alarm, the combustible gas concentration detector 22 and the alarm 24 are communicatively connected to the remote control center, and during specific use, when installing the combustible gas concentration detector 22, it is only necessary to tighten the mounting sleeve 21 on the connecting pipe 20, so that the combustible gas concentration detector 22 is detachably fixed to the connecting pipe 20 through the mounting sleeve 21, when the combustible gas leaks, combustible gas gathers in the cavity formed by the first fixing sleeve 15 and the second fixing sleeve 17, the combustible gas concentration detector 22 can quickly detect the gas leakage and trigger the alarm 24 to alert the staff, and the staff can take timely measures according to the alarm to avoid accidents.

[0025] As an implementation method in this embodiment, Figure 2As shown, the auxiliary sealing assembly includes a first clamp 30 and a second clamp 31 fixedly sleeved on the outer walls of the first flange 12 and the second flange 13, both ends of the first clamp 30 and the second clamp 31 are fixed by a second bolt 32, a first sealing gasket 301 is bonded and fixed to the inner wall of the first clamp 30, and a second sealing gasket 311 is bonded and fixed to the second clamp 31. During specific use, the gap at the connection between the first fixing sleeve 15 and the second fixing sleeve 17 is sealed by the first sealing gasket 301 and the second sealing gasket 311 to enhance the sealing effect. The first clamp 30 and the second clamp 31 are used to fix the first sealing gasket 301 and the second sealing gasket 311, so that the first sealing gasket 301 and the second sealing gasket 311 are tightly fitted with the first fixing sleeve 15 and the second fixing sleeve 17.

[0026] As an implementation method in this embodiment, Figure 3 and Figure 4 As shown, a first mounting hole 121 is provided in a circular array on the first flange 12, and a second mounting hole 131 is provided in a circular array on the second flange 13. The first mounting hole 121 and the second mounting hole 131 are used in conjunction with the first bolt 14. During specific use, the setting of the first mounting hole 121 and the second mounting hole 131 can facilitate the insertion of the first bolt 14.

[0027] As an implementation method in this embodiment, Figure 4 As shown, the bottom end of the connecting pipe 20 is connected to the interior of the second fixing sleeve 17, and the detection end of the combustible gas concentration detector 22 is inserted into the interior of the second fixing sleeve 17, and the leaking gas is detected through the detection end of the combustible gas concentration detector 22.

[0028] Working principle: When in use, the first bolt 14 is set to tightly fix the first pipe 10 and the second pipe 11, and the sealing plate 16 on the first fixing sleeve 15 is inserted into the sealing groove 18 on the second fixing sleeve 17 to form a small and relatively closed cavity. When installing the combustible gas concentration detector 22, it is only necessary to tighten the installation sleeve 21 on the connecting pipe 20, so that the combustible gas concentration detector 22 can be detachably fixed to the connecting pipe 20 through the installation sleeve 21. When the combustible gas leaks, the combustible gas gathers in the cavity formed by the first fixing sleeve 15 and the second fixing sleeve 17. The combustible gas concentration detector 22 can quickly detect the gas leakage and trigger the alarm 24 to alert the staff. The staff can take timely measures according to the alarm to avoid accidents.

[0029] The above embodiments are only used to illustrate the technical solution of the present invention, but not to limit it.

Claims

1. A gas transmission pipeline connecting flange with a gas leakage alarm, comprising a first pipeline (10) and a second pipeline (11), wherein the end of the first pipeline (10) is fixedly connected to a first flange (12), and the end of the second pipeline (11) is fixedly connected to a second flange (13), and a plurality of first bolts (14) are connected between the first flange (12) and the second flange (13), and the first flange (12) and the second flange (13) are fixedly connected by the first bolts (14), characterized in that: A first fixing sleeve (15) is fixedly sleeved on the outer wall of the first flange (12), a sealing plate (16) is fixedly sleeved on the side wall of the first fixing sleeve (15) close to the second flange (13), a second fixing sleeve (17) is fixedly sleeved on the outer wall of the second flange (13), a sealing groove (18) adapted to the sealing plate (16) is opened on the side wall of the second fixing sleeve (17) close to the first flange (12), an alarm mechanism for detecting combustible gas is arranged on the second fixing sleeve (17), and auxiliary sealing components are arranged on the outer walls of the first flange (12) and the second flange (13).

2. A gas transmission pipeline connecting flange with gas leakage alarm according to claim 1, characterized in that: The alarm mechanism comprises a connecting pipe (20) fixedly embedded in the outer wall of a second fixing sleeve (17); a mounting sleeve (21) is threadedly connected to the top of the connecting pipe (20); a combustible gas concentration detector (22) is fixedly connected to the center of the mounting sleeve (21); a mounting platform (23) is also fixedly connected to the outer wall of the second fixing sleeve (17); and an alarm (24) is fixedly mounted on the mounting platform (23).

3. A gas transmission pipeline connecting flange with gas leakage alarm according to claim 1, characterized in that: The auxiliary sealing assembly comprises a first clamp (30) and a second clamp (31) fixedly sleeved on the outer walls of the first flange (12) and the second flange (13); both ends of the first clamp (30) and the second clamp (31) are fixed by a second bolt (32); a first sealing gasket (301) is bonded and fixed to the inner wall of the first clamp (30); and a second sealing gasket (311) is bonded and fixed to the second clamp (31).

4. A gas transmission pipeline connecting flange with gas leakage alarm according to claim 1, characterized in that: The first flange (12) is provided with first mounting holes (121) in an annular array, and the second flange (13) is provided with second mounting holes (131) in an annular array. The first mounting holes (121) and the second mounting holes (131) are used to cooperate with the first bolts (14).

5. A gas transmission pipeline connecting flange with gas leakage alarm according to claim 2, characterized in that: The bottom end of the connecting pipe (20) is in communication with the interior of the second fixing sleeve (17), and the detection end of the combustible gas concentration detector (22) is inserted into the interior of the second fixing sleeve (17).

6. A gas transmission pipeline connecting flange with gas leakage alarm according to claim 2, characterized in that: The combustible gas concentration detector (22) and the alarm (24) are communicatively connected to a remote control center.

7. A gas transmission pipeline connecting flange with gas leakage alarm according to claim 2, characterized in that: The alarm (24) is an audible and visual alarm.

8. The gas transmission pipeline connecting flange with gas leakage alarm according to claim 1, characterized in that: The first fixing sleeve (15) and the second fixing sleeve (17) are combined via a sealing plate (16) and a sealing groove (18) to form a sealed cavity.

Images