Gas pipeline installation sealing structure

Abstract

The utility model discloses a gas pipeline installation sealing structure which comprises a sealing cavity, a piston cavity, a piston head, a touch switch and an ejector pin. According to the gas pipeline installation sealing structure, a sealing disc is fixedly connected to a sleeve, a piston cavity communicated with the sealing cavity is fixedly connected to the side wall of the top of the sealing cavity, a piston head matched with the piston cavity is slidably connected into the piston cavity, and the piston head is slidably sealed in the piston cavity, and the tail end of the piston head is fixedly connected with an ejector pin; a touch switch is fixedly connected to the inner side of the end of the piston cavity, the touch switch corresponds to and is matched with the ejector pin, a buzzer is fixedly connected to the outer wall of the piston cavity, and when gas leaks, the sealing cavity can be formed through the sealing disc for secondary isolation, so that the air pressure in the sealing cavity is increased, and the piston head in the piston cavity is pushed to move. Therefore, the ejector pin contacts with the touch switch, and the buzzer is matched to give an alarm, so that a worker is effectively reminded of the leakage problem, and the situation that the worker does not know the leakage problem is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of pipeline sealing, in particular to a gas pipeline installation sealing structure. Background Art

[0002] Gas pipelines include control valves, filters, pressure reducing devices, pressure gauges, flow meters, online analyzers, etc., which should be concentrated in the gas inlet room. After being pressurized by blowers, compressors, pumps and boilers, the gas flows from the high-pressure part of the pipeline to the low-pressure part. It can also be transported by the gas's own pressure or gravity.

[0003] The connection of gas pipelines is mostly through flange connection. After a long time, gas leakage may occur, and the staff cannot detect it in the first time, resulting in continuous gas leakage and possible safety accidents. Therefore, a gas pipeline installation sealing structure is proposed to solve the above situation. Utility Model Content

[0004] The purpose of the utility model is to provide a gas pipeline installation sealing structure to solve the problem proposed in the above background technology that pipelines are mostly connected through flanges, which may cause gas leakage over time, and the staff cannot detect it in the first time, resulting in continuous leakage and possible safety accidents.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A gas pipeline installation sealing structure comprises a pipeline, wherein opposite sides of the pipeline are fixedly connected with a first flange, the outer sides of the pipeline are sleeved with a sleeve adapted thereto, the sleeves are fixedly connected with a sealing disk, the sealing disk comprises a second flange corresponding to the first flange, a third flange away from the first flange and a sealing cavity, the first flange and the second flange are penetrated with a first fixing bolt, the first flange and the second flange are circumferentially provided with fixing holes for the first fixing bolt to penetrate, the first fixing bolt penetrates the first flange and the second flange and is threadedly connected with a nut, the third flanges are fitted with each other and penetrated with a second fixing bolt, the third flange is provided with a fixing hole for the second fixing bolt to penetrate, the second fixing bolt penetrates two third flanges and is threadedly connected with a nut, a piston cavity connected thereto is fixedly connected to the top side wall of the sealing cavity, a piston head adapted thereto is slidably connected therein, the piston head slides in the piston cavity and seals, a pin is fixedly connected to the tail end of the piston head, a touch switch is fixedly connected to the inner side of the end of the piston cavity, the touch switch corresponds to and adapts to the pin, and a buzzer is fixedly connected to the outer wall of the piston cavity.

[0007] As a further solution of the utility model: a fourth flange corresponding to and matching the first flange is provided between the first flanges, a connecting pipe is transversely penetrated and fixedly connected to the inner circle of the fourth flange, and the connecting pipe is inserted into the pipeline and matched with the pipeline.

[0008] As a further solution of the utility model: the fourth flange is horizontally penetrated by the first fixing bolt, and a mounting hole for the first fixing bolt to penetrate is opened on the circumference of the fourth flange, annular air guide channels are provided on the inner sides of the two sides of the fourth flange corresponding to the penetration points of the first fixing bolt, and straight air guide channels connected to the annular air guide channels are opened on both sides of the fourth flange.

[0009] As a further solution of the utility model: a first sealing ring is embedded in the outer wall of the connecting pipe at equal distances, a second sealing ring is embedded between the first flange and the fourth flange, the second sealing ring is arranged on the inner side of the annular air guide channel, a third sealing ring is embedded between the second flange and the first flange, the third sealing ring is arranged on the outer edge of the first flange, a fourth sealing ring is embedded between the third flanges, and the fourth sealing ring is arranged on the inner side of the second fixing bolt penetration point.

[0010] As a further solution of the utility model: the buzzer is electrically connected to the touch switch through a wire, a threading hole for the wire to pass through is opened on the piston cavity, and the buzzer has its own power supply.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] 1. In the utility model, when gas leaks, a sealing cavity can be formed through a sealing disk for re-isolation, so that the air pressure inside the sealing cavity rises, thereby pushing the piston head in the piston cavity to move, so that the ejector pin contacts the touch switch, and the buzzer sounds an alarm, thereby effectively reminding the staff of the leakage problem and avoiding the occurrence of leakage without knowing it.

[0013] 2. The utility model forms a plug-in connection by cooperating with the connecting pipe through the fourth flange, thereby forming a longer sealing area, and cooperates with the first sealing ring and the second sealing ring to form a double seal, thereby improving the sealing effect.

[0014] 3. The utility model gathers the leaked gas through the annular air guide channel and directly discharges it into the sealing cavity through the straight air guide channel, so that the leaked gas can quickly enter the sealing cavity and contact the piston cavity through the setting of the channel. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 The present invention is a structural schematic diagram of a sealing structure for installing a gas pipeline.

[0016] Figure 2 This is an enlarged view of A in a gas pipeline installation sealing structure.

[0017] Figure 3 This is an enlarged view of B in a gas pipeline installation sealing structure.

[0018] Figure 4 The figure is a side view of the fourth flange in a gas pipeline installation sealing structure.

[0019] In the figure: 1. pipeline; 2. first flange; 3. sleeve; 4. sealing disk; 5. second flange; 6. third flange; 7. sealing chamber; 8. first fixing bolt; 9. second fixing bolt; 10. piston chamber; 11. piston head; 12. ejector pin; 13. touch switch; 14. buzzer; 15. fourth flange; 16. connecting pipe; 17. straight air guide channel; 18. first sealing ring; 19. second sealing ring; 20. third sealing ring; 21. fourth sealing ring; 22. annular air guide channel. 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] See also Figures 1 to 4In an embodiment of the utility model, a gas pipeline installation sealing structure includes a pipeline 1, and the opposite sides of the pipeline 1 are fixedly connected with a first flange 2, and the outer side of the pipeline 1 is sleeved with a sleeve 3 adapted thereto, and a sealing disk 4 is fixedly connected to the sleeve 3, and the sealing disk 4 includes a second flange 5 corresponding to the first flange 2, a third flange 6 away from the first flange 2, and a sealing cavity 7, and the first flange 2 and the second flange 5 are penetrated by a first fixing bolt 8, and the first flange 2 and the second flange 5 are circumferentially provided with fixing holes for the first fixing bolt 8 to penetrate, and the first fixing bolt 8 penetrates the first flange 2 and the second flange 5 and is threadedly connected with a nut, and the third flanges 6 fit each other and are penetrated by a second fixing bolt 9, and the third flange 6 A fixing hole is provided for the second fixing bolt 9 to pass through, and the second fixing bolt 9 is threadedly connected with a nut after passing through the two third flanges 6. A piston chamber 10 connected thereto is fixedly connected to the top side wall of the sealing chamber 7, and the piston chamber 10 is obliquely installed on the top of the sealing chamber 7, so that the piston head 11 slides down due to gravity to prevent the ejector pin 12 from contacting the touch switch 13 in the absence of pressure. A piston head 11 matching therewith is slidably connected in the piston chamber 10, and the piston head 11 slides and seals in the piston chamber 10. The tail end of the piston head 11 is fixedly connected with the ejector pin 12, and the inner side of the end of the piston chamber 10 is fixedly connected with a touch switch 13, which corresponds to and matches the ejector pin 12, and a buzzer 14 is fixedly connected to the outer wall of the piston chamber 10.

[0022] When gas leaks, a sealed cavity 7 can be formed through the sealing disk 4 for isolation again, so that the air pressure inside the sealed cavity 7 rises, thereby pushing the piston head 11 in the piston cavity 10 to move, so that the ejector pin 12 contacts the touch switch 13, and the buzzer 14 sounds an alarm, thereby effectively reminding the staff of the leakage problem and avoiding the occurrence of leakage without knowing it.

[0023] A fourth flange 15 corresponding to and matching the first flanges 2 is disposed between the first flanges 2 . A connecting pipe 16 is transversely penetrated and fixedly connected to the inner circle of the fourth flange 15 . The connecting pipe 16 is inserted into the pipeline 1 and matched with the pipeline 1 .

[0024] The fourth flange 15 is horizontally penetrated by the first fixing bolt 8, and a mounting hole for the first fixing bolt 8 to penetrate is provided on the circumference of the fourth flange 15. An annular air guide channel 22 is provided on the inner side of the two sides of the fourth flange 15 corresponding to the penetration of the first fixing bolt 8, and a straight air guide channel 17 connected to the annular air guide channel 22 is provided on both sides of the fourth flange 15.

[0025] A first sealing ring 18 is embedded in the outer wall of the connecting pipe 16 at equal distances, a second sealing ring 19 is embedded between the first flange 2 and the fourth flange 15, and the second sealing ring 19 is arranged on the inner side of the annular air guide channel 22, a third sealing ring 20 is embedded between the second flange 5 and the first flange 2, and the third sealing ring 20 is arranged on the outer edge of the first flange 22, and a fourth sealing ring 21 is embedded between the third flanges 6, and the fourth sealing ring 21 is arranged on the inner side of the point where the second fixing bolt 9 passes through.

[0026] The fourth flange 15 cooperates with the connecting pipe 16 to form a plug-in connection, thereby forming a longer sealing area, and cooperates with the first sealing ring 18 and the second sealing ring 19 to form a double seal, thereby improving the sealing effect.

[0027] A seal is formed between the second flange 5 and the first flange 2 by the third sealing ring 20, a seal is formed between the third flange 6 by the fourth sealing ring 21, and a seal is formed on the connecting surface of the sealing cavity 7, thereby reducing the possibility of air leakage.

[0028] The leaked gas is gathered through the annular air guide channel 22 and directly discharged into the sealing chamber 7 through the straight air guide channel 17, so that the leaked gas can quickly enter the sealing chamber and contact the piston chamber 10 through the setting of the channel.

[0029] The buzzer 14 is electrically connected to the touch switch 13 through a wire, and a threading hole for the wire to pass through is provided on the piston chamber 10. The buzzer 14 has its own power supply, which can be a detachable battery or a rechargeable battery module.

[0030] The working principle of the utility model is:

[0031] When in use, the sleeve 3 is first sleeved on the outside of the pipeline 1, and the fourth flange 15 is placed between the first flanges 2 when the pipelines are assembled with each other through the first flanges 2, so that the connecting pipe 16 and the pipeline 1 form a plug-in connection. At this time, the sealing disk 4 and the first flange 2 are brought close to each other, so that the fixing holes are aligned with each other, and the piston chamber 10 is located at the top. At this time, the first fixing bolt 9 and the second fixing bolt 8 are used to cooperate with the nut for penetration and fixation. At this time, a seal is formed by the first sealing ring 18, the second sealing ring 19, the third sealing ring 20 and the fourth sealing ring 21. When the first sealing ring When both the first sealing ring 18 and the second sealing ring 19 fail, the gas in the pipeline 1 enters the connecting surface of the first flange 2 and the fourth flange 15 through the connecting surface of the connecting pipe 16 and the pipeline 1 and penetrates outward. The penetrated air is gathered through the annular air guide channel 22, and then discharged into the sealing chamber 7 through the straight air guide channel 17, and finally enters the piston chamber 10, thereby pushing the piston head 11 in the piston chamber 10 to move, so that the ejector pin 12 contacts the touch switch 13, and cooperates with the buzzer 14 to sound an alarm, thereby effectively reminding the staff of the leakage problem and avoiding the leakage without knowing it.

[0032] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A gas pipeline installation sealing structure, comprising a pipeline (1), characterized in that: The opposite sides of the pipeline (1) are fixedly connected with a first flange (2), the outer side of the pipeline (1) is sleeved with a sleeve (3) matching the first flange (2), the sleeve (3) is fixedly connected with a sealing disk (4), the sealing disk (4) comprises a second flange (5) corresponding to the first flange (2), a third flange (6) away from the first flange (2) and a sealing cavity (7), the first flange (2) and the second flange (5) are penetrated by a first fixing bolt (8), the first fixing bolt (8) penetrates the first flange (2) and the second flange (5) and is then threadedly connected with a nut, the third flange (6) is mutually A second fixing bolt (9) is fitted and penetrated together, and the second fixing bolt (9) penetrates the two third flanges (6) and is threadedly connected with a nut. A piston chamber (10) connected to the sealing chamber (7) is fixedly connected to the top side wall thereof, a piston head (11) matched with the sealing chamber (10) is slidably connected in the piston chamber (10), a pin (12) is fixedly connected to the tail end of the piston head (11), a touch switch (13) is fixedly connected to the inner side of the end of the piston chamber (10), the touch switch (13) corresponds to and matches the pin (12), and a buzzer (14) is fixedly connected to the outer wall of the piston chamber (10).

2. A gas pipeline installation sealing structure according to claim 1, characterized in that: A fourth flange (15) corresponding to and matching the first flange (2) is provided between the first flanges (2); a connecting pipe (16) is transversely penetrated and fixedly connected to the inner circle of the fourth flange (15); the connecting pipe (16) is inserted into the pipeline (1) and matches the pipeline (1).

3. A gas pipeline installation sealing structure according to claim 2, characterized in that: The fourth flange (15) is laterally penetrated by the first fixing bolt (8), and an annular air guide channel (22) is provided on the inner side of the two sides of the fourth flange (15) corresponding to the penetration point of the first fixing bolt (8), and straight air guide channels (17) communicating with the annular air guide channel (22) are opened on the two sides of the fourth flange (15).

4. A gas pipeline installation sealing structure according to claim 2, characterized in that: A first sealing ring (18) is embedded in the outer wall of the connecting pipe (16) at equal distances, a second sealing ring (19) is embedded between the first flange (2) and the fourth flange (15), a third sealing ring (20) is embedded between the second flange (5) and the first flange (2), and a fourth sealing ring (21) is embedded between the third flanges (6).

5. A gas pipeline installation sealing structure according to claim 1, characterized in that: The buzzer (14) is electrically connected to the touch switch (13) via a wire, a threading hole for the wire to pass through is provided on the piston cavity (10), and the buzzer (14) has its own power supply.

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