Urban gas pipe network monitoring device

Abstract

The utility model discloses an urban gas pipe network monitoring device. The device comprises a gas monitoring instrument; the rear portions of the sides, close to each other, of the two semicircular pipes are rotationally installed, the fuel gas monitoring instrument is fixedly installed on the top of the semicircular pipe on the upper portion, the monitoring end of the fuel gas monitoring instrument extends into the semicircular pipe on the upper portion, and the fuel gas monitoring instrument is used for monitoring leaked fuel gas. According to the utility model, through the arrangement of a series of structures, the connection part of the gas pipeline can be wrapped in the sealed space for direct monitoring, and when leakage occurs at the connection part of the gas pipeline, the leakage directly enters the sealed space and does not drift to the external environment, so that the situation that the monitoring is influenced by the external environment can be effectively reduced; and the mode that gas is supplied into the four semicircular hollow elastic sealing sleeves to enable the sealing sleeves to expand to seal and wrap the gas pipeline is adopted, so that the sealing device can be suitable for sealing gas pipelines with different diameters, and the application range is widened.

Description

TECHNICAL FIELD

[0001] The utility model relates to town gas pipe network monitoring equipment technical field especially relates to a town gas pipe network monitoring device. BACKGROUND

[0002] With the rapid development of city, the building is increasing, which brings new challenges to the detection of city gas pipe network, and the safety of gas pipe network is directly related to people's life and property safety, and also related to the stability of society, so the state and relevant departments must pay high attention to the safety problem of city gas pipe network, and strengthen the supervision and management of city gas pipe network,

[0003] In the prior art, personnel usually hold gas monitoring instruments to monitor whether the connecting part of the gas pipeline leaks, this monitoring method is affected by the external environment, resulting in low monitoring accuracy, when there is a small amount of leakage at the connecting part of the gas pipeline, it is difficult to monitor, therefore, the utility model provides a town gas pipe network monitoring device. UTILITY MODEL CONTENT

[0004] The utility model discloses a town gas pipe network monitoring device which solves the problems in the prior art.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0006] A town gas pipe network monitoring device comprises:

[0007] A gas monitoring instrument;

[0008] Two semicircular pipes are rotatably installed on the rear side of the two semicircular pipes, the gas monitoring instrument is fixedly installed on the top of the upper semicircular pipe, and the monitoring end of the gas monitoring instrument extends into the upper semicircular pipe, the gas monitoring instrument is used for monitoring the leaked gas, and the monitoring principle is the prior art, which is not described here in detail.

[0009] A fixing mechanism is fixedly installed on the front side of the two semicircular pipes, and the fixing mechanism is used for fixing the two semicircular pipes.

[0010] Four semicircular hollow elastic sealing sleeves are respectively fixedly bonded in the corresponding semicircular pipes, and the four semicircular hollow elastic sealing sleeves are used for sealing and wrapping the gas pipeline.

[0011] Two communication cross pipes are respectively fixedly communicated with the side of the two semicircular hollow elastic sealing sleeves on the left and right sides, and the two communication cross pipes are used for realizing the communication between the two semicircular hollow elastic sealing sleeves on the left and right sides.

[0012] A pressure sensor is fixedly installed at the top left side of the upper semicircular pipe, and a monitoring end of the pressure sensor extends into the left upper semicircular hollow elastic sealing sleeve, and the pressure sensor is used for monitoring the pressure in the left upper semicircular hollow elastic sealing sleeve, and the monitoring principle is prior art, which is not described here in detail.

[0013] A gas supply and exhaust mechanism is fixedly installed at the top of the upper semicircular pipe and is in communication with the right upper semicircular hollow elastic sealing sleeve, and the gas supply and exhaust mechanism is used for supplying gas to the semicircular hollow elastic sealing sleeve and simultaneously sucking the gas in the semicircular hollow elastic sealing sleeve.

[0014] A communication mechanism is fixedly installed at the right rear of the two semicircular hollow elastic sealing sleeves on the right side, and the communication mechanism realizes the communication between the two semicircular hollow elastic sealing sleeves on the right side.

[0015] A PLC controller is electrically connected with the gas supply and exhaust mechanism and the pressure sensor, the PLC controller receives the pressure value transmitted by the pressure sensor to control the gas supply and exhaust mechanism, and the control principle is prior art, which is not described here in detail.

[0016] Preferably, the gas supply and exhaust mechanism comprises a gas pump fixedly connected at the top of the upper semicircular pipe, the gas pump is electrically connected with the PLC controller, the suction end and the discharge end of the gas pump are both in communication with a three-way pipe, the right end of the three-way pipe is in communication with a first electromagnetic valve, the ends of the two three-way pipes away from each other are both in communication with a second electromagnetic valve, the end of the lower second electromagnetic valve is in communication with the inside of the right upper semicircular hollow elastic sealing sleeve, the right end of the lower first electromagnetic valve is in communication with an exhaust pipe, the right end of the upper first electromagnetic valve is in communication with a U-shaped pipe, and the left bottom end of the U-shaped pipe is in communication with the right top of the upper semicircular hollow elastic sealing sleeve.

[0017] Preferably, the fixing mechanism comprises two fixing blocks, the rear sides of the two fixing blocks are respectively fixedly connected with the front sides of the corresponding semicircular pipes, bolt holes are formed in the top of the fixing block, and a T-shaped fixing bolt is threadedly sleeved in the two bolt holes, and the two semicircular pipes are fixed by the cooperation of the T-shaped fixing bolt and the two fixing blocks.

[0018] Preferably, the communication mechanism comprises two L-shaped pipes, the two L-shaped pipes are respectively in communication with the right rear of the two semicircular hollow elastic sealing sleeves on the right side, and the ends of the two L-shaped pipes close to each other are in communication with the same flexible hose, and the flexible hose can provide a rotating distance for the semicircular pipe by the telescopic property.

[0019] Preferably, a mounting groove with an open right side is formed in the top of the upper semicircular pipe, and the discharge end of the gas pump, the lower three-way pipe and the second electromagnetic valve are all located in the mounting groove.

[0020] Preferably, the exhaust pipe is located at the front side of the U-shaped pipe, the top of the upper semicircular pipe is fixedly connected with a storage battery, the storage battery is electrically connected with a PLC controller, a pressure sensor, a gas monitoring instrument and a gas pump, the storage battery supplies power for the PLC controller, the pressure sensor, the gas monitoring instrument and the gas pump, and the PLC controller is fixedly connected to the top of the storage battery.

[0021] Preferably, the rear side of the two semicircular pipes is threadedly fixed with the same hinge, the two semicircular pipes are rotatably installed through the hinge, and the top front side and the top rear side of the lower semicircular pipe are both adhesively fixed with sealing pads, and the top of the sealing pad is in close contact with the bottom of the upper semicircular pipe.

[0022] Compared with the prior art, the utility model has the advantages that:

[0023] 1. The semicircular pipe and the semicircular hollow elastic sealing sleeve are matched, the connection of the gas pipeline can be wrapped in the sealed space, when the connection of the gas pipeline leaks, the gas enters the sealed space and cannot spread to the external environment, the gas monitoring instrument can directly monitor, and the monitoring affected by the external environment can be effectively reduced.

[0024] 2. The gas supply and suction mechanism and the communication mechanism are matched, the four semicircular hollow elastic sealing sleeves are inflated by supplying gas, the gas pipeline is sealed and wrapped, the wrapped state is removed by sucking the gas after monitoring, the inflation wrapping mode is suitable for sealing the gas pipeline with different diameters, and the application range is improved.

[0025] The utility model discloses a series of structure's setting can the connection of gas pipeline is wrapped in sealed space and is directly monitored, when the connection of gas pipeline leaks, directly enters the sealed space, cannot spread to the external environment, and the monitoring affected by the external environment can be effectively reduced, and the four semicircular hollow elastic sealing sleeves are inflated by supplying gas, the gas pipeline is sealed and wrapped, the inflation wrapping mode is suitable for sealing the gas pipeline with different diameters, and the application range is improved. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 It is a structure schematic view of a kind of urban gas pipe network monitoring device proposed in the utility model;

[0027] Figure 2 It is a main view sectional structure schematic view of a kind of urban gas pipe network monitoring device proposed in the utility model;

[0028] Figure 3 It is Figure 2 Enlarged structure schematic view of part A.

[0029] In the figure: 1, semicircular pipe; 2, semicircular hollow elastic sealing sleeve; 3, gas monitoring instrument; 4, pressure sensor; 5, PLC controller; 6, communication cross pipe; 7, L-shaped pipe; 8, flexible hose; 9, air pump; 10, tee; 11, mounting groove; 12, second electromagnetic valve; 13, first electromagnetic valve; 14, U-shaped pipe; 15, exhaust pipe; 16, fixed block; 17, T-shaped fixed bolt. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the utility model will be clearly and completely described 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, rather than all the embodiments.

[0031] Reference Figures 1-3 A kind of urban gas pipe network monitoring device, comprising:

[0032] Gas monitoring instrument 3;

[0033] Two semicircular pipes 1, the rear side of two semicircular pipes 1 is rotatably installed on one side of each other, wherein the same hinge is threadedly fixed to the rear side of two semicircular pipes 1, and two semicircular pipes 1 are rotatably installed by the hinge; the top front side and the top rear side of the lower semicircular pipe 1 are both adhesively fixed with a sealing gasket, the top of the sealing gasket is in close contact with the bottom of the upper semicircular pipe 1, and the sealing of the contact and closure of two semicircular pipes 1 is realized by the sealing gasket;

[0034] Gas monitoring instrument 3 is fixedly installed on the top of the upper semicircular pipe 1, and its monitoring end extends into the upper semicircular pipe 1, wherein an installation hole for installing gas monitoring instrument 3 is formed in the inner wall of the top of the upper semicircular pipe 1, and gas monitoring instrument 3 is used for monitoring leaked gas, and its monitoring principle is prior art, which is not described in detail here;

[0035] A fixing mechanism is fixedly installed on the front side of two semicircular pipes 1; the fixing mechanism comprises two fixed blocks 16, the rear side of each fixed block 16 is fixedly connected with the front side of the corresponding semicircular pipe 1, a bolt hole is formed in the top of the fixed block 16, a T-shaped fixed bolt 17 is threadedly sleeved in the two bolt holes, and the two semicircular pipes 1 are fixed by the cooperation of the T-shaped fixed bolt 17 and the two fixed blocks 16;

[0036] Four semicircular hollow elastic sealing sleeves 2 are adhesively fixed in the corresponding semicircular pipes 1 respectively, and the gas pipeline is sealed and wrapped by the four semicircular hollow elastic sealing sleeves 2;

[0037] Two communication cross pipes 6, both ends of which are respectively communicated and fixed with the side of the corresponding left and right opposite two semicircular hollow elastic sealing sleeves 2 close to each other, and the communication between the left and right opposite two semicircular hollow elastic sealing sleeves 2 is realized through the communication cross pipe 6;

[0038] A pressure sensor 4 is fixedly installed at the top left side of the upper semicircular pipe 1, the monitoring end of the pressure sensor 4 extends into the left upper semicircular hollow elastic sealing sleeve 2, and the pressure sensor 4 is used for monitoring the pressure condition in the left upper semicircular hollow elastic sealing sleeve 2, and the monitoring principle is the prior art, which is not described here in detail;

[0039] A gas supply and exhaust mechanism is fixedly installed at the top of the upper semicircular pipe 1 and is communicated and fixed with the right upper semicircular hollow elastic sealing sleeve 2, the gas supply and exhaust mechanism comprises a gas pump 9 fixedly connected to the top of the upper semicircular pipe 1, both the suction end and the discharge end of the gas pump 9 are communicated and fixed with a three-way pipe 10, the right end of the three-way pipe 10 is communicated and fixed with a first electromagnetic valve 13, both ends of the two three-way pipes 10 away from each other are communicated and fixed with a second electromagnetic valve 12, the lower end of the second electromagnetic valve 12 is communicated with the inside of the right upper semicircular hollow elastic sealing sleeve 2, the right end of the lower first electromagnetic valve 13 is communicated and fixed with an exhaust pipe 15, the right end of the upper first electromagnetic valve 13 is communicated and fixed with a U-shaped pipe 14, the left side bottom end of the U-shaped pipe 14 is communicated and fixed with the right side top of the upper semicircular hollow elastic sealing sleeve 2, a mounting groove 11 with an opening on the right side is arranged at the top of the upper semicircular pipe 1, the discharge end of the gas pump 9, the lower three-way pipe 10 and the second electromagnetic valve 12 are located in the mounting groove 11, and the exhaust pipe 15 is located at the front side of the U-shaped pipe 14;

[0040] A communication mechanism is communicated and fixed at the right rear part of the two right semicircular hollow elastic sealing sleeves 2, the communication mechanism comprises two L-shaped pipes 7, the two L-shaped pipes 7 are respectively communicated and fixed with the right rear of the two right semicircular hollow elastic sealing sleeves 2, and the ends close to each other of the two L-shaped pipes 7 are communicated and fixed with the same flexible hose 8, and the flexible hose 8 can provide a rotating distance for the semicircular pipe 1 by the telescopic property;

[0041] A PLC controller 5 is electrically connected with the gas pump 9 and the pressure sensor 4, the PLC controller 5 receives the pressure value transmitted by the pressure sensor 4 to control the gas supply and exhaust mechanism, and the control principle is the prior art, which is not described here;

[0042] The top of the upper semicircular pipe 1 is fixedly connected with a storage battery, the storage battery is electrically connected with a PLC controller 5, a pressure sensor 4, a gas monitoring instrument 3 and a gas pump 9, the storage battery supplies power for the PLC controller 5, the pressure sensor 4, the gas monitoring instrument 3 and the gas pump 9, and the PLC controller 5 is fixedly connected at the top of the storage battery; through the arrangement of a series of structures, the connecting part of the gas pipeline can be wrapped in a sealed space for direct monitoring, when leakage occurs at the connecting part of the gas pipeline, directly enters the sealed space and cannot drift to the external environment, thereby effectively reducing the monitoring condition affected by the external environment, and through the inflation of the four semicircular hollow elastic sealing sleeves 2 by supplying gas to the four semicircular hollow elastic sealing sleeves 2, the gas pipeline is sealed and wrapped, so that it can be suitable for sealing with gas pipelines of different diameters, and the application range is improved.

[0043] Working principle: when using, the connection of the gas pipeline is monitored, the pressure value of the closed gas pump 9 is set in advance by the PLC controller 5, first reverse rotation T-shaped fixed bolt 17, T-shaped fixed bolt 17 rotation and two fixed block 16 separate, release the front side of two semicircular tube 1 fixed, then turn the upper semicircular tube 1 upwards, and the whole device is set on the outside of the gas pipeline, the connection of the gas pipeline is located between the two semicircular hollow elastic sealing sleeve 2, the gas pipeline is located between the two semicircular hollow elastic sealing sleeve 2, then turn the upper semicircular tube 1 downwards, through the forward rotation T-shaped fixed bolt 17 to the two bolt holes, the two semicircular tube 1 is fixed, then open the gas pump 9 and the second electromagnetic valve 12, the gas pump 9 extracts the outside gas through the second electromagnetic valve 12, the extracted gas enters into the right upper semicircular hollow elastic sealing sleeve 2 through the second electromagnetic valve 12, part of the gas in the right upper semicircular hollow elastic sealing sleeve 2 enters into the upper communication horizontal pipe 6 and the upper L-shaped pipe 7, the gas in the upper communication horizontal pipe 6 enters into the left upper semicircular hollow elastic sealing sleeve 2, the gas in the upper L-shaped pipe 7 enters into the right lower semicircular hollow elastic sealing sleeve 2 through the flexible hose 8 and the lower L-shaped pipe 7, the gas in the right lower semicircular hollow elastic sealing sleeve 2 enters into the left lower semicircular hollow elastic sealing sleeve 2 through the lower communication horizontal pipe 6, with the entering of the gas, the four semicircular hollow elastic sealing sleeves 2 are filled with gas and gradually expand, the inside of the semicircular hollow elastic sealing sleeve 2 expands gradually and tightly contacts with the gas pipeline, at the same time, the pressure sensor 4 monitors the gas pressure in the left upper semicircular hollow elastic sealing sleeve 2 and transmits the monitored pressure value to the PLC controller 5, when the pressure value reaches the preset value, the PLC controller 5 controls the gas pump 9 to close, at this time, the outside of the gas pipeline is sealed and wrapped by the four expanded semicircular hollow elastic sealing sleeves 2, at this time, the connection of the gas pipeline is located in the sealing space formed by the two semicircular tubes 1 and the four semicircular hollow elastic sealing sleeves 2, and the monitoring end of the gas monitoring instrument 3 is located in the sealing space, when the connection of the gas pipeline leaks, the gas enters into the sealing space and does not scatter to the outside environment, which can be directly monitored by the gas monitoring instrument 3, thereby effectively reducing the influence of the external environment on the monitoring and improving the monitoring accuracy, and the sealing mode of the semicircular hollow elastic sealing sleeve 2 inflation can be applied to the sealing of the gas pipeline with different diameters, which improves the application range;

[0044] After the monitoring is completed, the two second electromagnetic valves 12 are closed and the two first electromagnetic valves 13 are opened, the suction end of the air pump 9 extracts the gas in the right upper semicircular hollow elastic sealing sleeve 2 through the upper first electromagnetic valve 13 and the U-shaped tube 14, the extracted gas is discharged to the outside through the discharge end of the air pump 9, the lower three-way tube 10 and the exhaust pipe 15 in turn, with the extraction force, the gas in the left two semicircular hollow elastic sealing sleeves 2 enters the right semicircular hollow elastic sealing sleeve 2 through the corresponding communication cross pipe 6 respectively, the gas in the right lower semicircular hollow elastic sealing sleeve 2 enters the upper semicircular hollow elastic sealing sleeve 2 through the lower L-shaped tube 7, the flexible hose 8 and the upper L-shaped tube 7 in turn and is extracted and discharged, with the discharge of the gas, the semicircular hollow elastic sealing sleeve 2 gradually shrinks, its inner diameter increases and is separated from the gas pipeline, at the same time, the pressure sensor 4 monitors the gas pressure in the left upper semicircular hollow elastic sealing sleeve 2, when the monitored gas pressure value is lower than the preset value, the PLC controller 5 controls the air pump 9 to be closed, then the T-shaped fixed bolt 17 is separated from the two fixed blocks 16 by being reversely rotated again, the corresponding semicircular hollow elastic sealing sleeve 2 is separated from the gas pipeline by being rotated upward with the upper semicircular tube 1, and the whole device can be taken down.

[0045] The above is only a preferred specific embodiment of the present application, but the protection scope of the present application is not limited to this, any skilled person in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. A device for monitoring a town gas network, comprising a gas monitoring meter (3), characterized in that, Include: Gas monitoring instrument (3); Two semicircular tubes (1), the side of the two semicircular tubes (1) close to each other is rotatably installed at the rear, and the gas monitoring instrument (3) is fixedly installed at the top of the upper semicircular tube (1), and the monitoring end thereof extends into the upper semicircular tube (1); A fixing mechanism fixedly installed at the front side of the two semicircular tubes (1); Four semicircular hollow elastic sleeves (2) are respectively fixedly bonded in the corresponding semicircular tubes (1); Two communication horizontal tubes (6) are respectively fixedly communicated at the side close to each other of the corresponding left and right two semicircular hollow elastic sleeves (2); A pressure sensor (4) is fixedly installed at the top left side of the upper semicircular tube (1), and the monitoring end of the pressure sensor (4) extends into the left upper semicircular hollow elastic sleeve (2); A gas supply and exhaust mechanism is fixedly installed at the top of the upper semicircular tube (1) and is fixedly communicated with the right upper semicircular hollow elastic sleeve (2); A communication mechanism is fixedly communicated at the right rear of the right two semicircular hollow elastic sleeves (2); A PLC controller (5) is electrically connected with the gas supply and exhaust mechanism and the pressure sensor (4).

2. The urban gas pipeline network monitoring device according to claim 1, characterized in that, The gas supply and exhaust mechanism comprises a gas pump (9) fixedly connected at the top of the upper semicircular tube (1), the gas pump (9) is electrically connected with the PLC controller (5), the suction end and the discharge end of the gas pump (9) are fixedly communicated with a three-way tube (10), the right end of the three-way tube (10) is fixedly communicated with a first electromagnetic valve (13), the ends of the two three-way tubes (10) away from each other are fixedly communicated with a second electromagnetic valve (12), the end of the lower second electromagnetic valve (12) is communicated with the inside of the right upper semicircular hollow elastic sleeve (2), the right end of the lower first electromagnetic valve (13) is fixedly communicated with an exhaust pipe (15), the right end of the upper first electromagnetic valve (13) is fixedly communicated with a U-shaped tube (14), and the left bottom end of the U-shaped tube (14) is fixedly communicated with the right top of the upper semicircular hollow elastic sleeve (2).

3. The urban gas pipeline network monitoring device according to claim 1, characterized in that, The fixing mechanism comprises two fixing blocks (16), the rear sides of the two fixing blocks (16) are fixedly connected with the front sides of the corresponding semicircular tubes (1), screw holes are formed in the top of the fixing block (16), and a T-shaped fixing bolt (17) is threadedly sleeved in the two screw holes.

4. The urban gas pipeline network monitoring device according to claim 1, characterized in that, The communication mechanism comprises two L-shaped tubes (7), the two L-shaped tubes (7) are fixedly communicated with the right rear of the two right semicircular hollow elastic sleeves (2), respectively, and the ends of the two L-shaped tubes (7) close to each other are fixedly communicated with the same flexible hose (8).

5. The urban gas pipeline network monitoring device according to claim 2, characterized in that, The top of the upper semicircular tube (1) is provided with a mounting groove (11) with an opening at the right side, and the discharge end of the gas pump (9), the lower three-way tube (10) and the second electromagnetic valve (12) are located in the mounting groove (11).

6. The urban gas pipeline network monitoring device according to claim 2, characterized in that, The exhaust pipe (15) is located in the front side of the U-shaped pipe (14), the top of the semicircular pipe (1) is fixedly connected with a storage battery, the storage battery is electrically connected with the PLC controller (5), the pressure sensor (4), the gas monitoring instrument (3) and the air pump (9), and the PLC controller (5) is fixedly connected on the top of the storage battery.

7. The urban gas pipeline network monitoring device according to claim 1, characterized in that, The rear side of the two semicircular pipes (1) is threadedly fixed with the same hinge, the two semicircular pipes (1) are rotatably installed through the hinge, the top front side and the top rear side of the lower semicircular pipe (1) are fixedly bonded with sealing pads, and the top of the sealing pad is in close contact with the bottom of the upper semicircular pipe (1).

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