Automatic leakage alarm device for long-distance oil and gas conveying pipe network

Abstract

An automatic leakage alarm device for a long-distance oil and gas conveying pipe network comprises a pipeline mechanism, the pipeline mechanism comprises an oil pipe, the outer surface of the oil pipe is fixedly sleeved with a connecting piece, a bolt penetrates through one side of the connecting piece, and the end, away from the connecting piece, of the bolt is in threaded connection with a nut. The gravity of oil gas is matched with the drainage plate, the limiting plate, the device sleeve and other components, so that after the oil gas flows into the device sleeve through the drainage plate, the stress plate in the device sleeve is stressed and then is in a descending state, the stress plate extrudes the switch A, and then the switch A controls the alarm to start; and the effect of draining oil gas while alarming is achieved, and the situation that leaked oil gas flows to the ground, and pollution is caused is avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of oil and gas transportation, in particular to an automatic alarm device for leakage of a long-distance oil and gas pipeline network. Background Art

[0002] Pipeline transportation offers numerous advantages, including low cost, high transport capacity, stable transportation, a high degree of automation, and the ability to continuously transport in harsh environments. It is particularly suitable for the long-distance transportation of flammable and explosive fluids such as oil and natural gas. In recent years, with the significant increase in global energy demand, gas pipeline construction has entered a period of rapid development, with a rapidly increasing level of automation. my country's total gas pipeline mileage has exceeded 80,000 kilometers. Flanges are typically used for pipeline connections. Due to their age, flange gaskets are prone to aging, leading to leaks at the flange joints. A pipeline leak not only results in direct economic losses and environmental pollution due to fluid loss, but in severe cases, can also cause explosions, fires, and even casualties.

[0003] According to a disclosed oil and gas pipeline leakage alarm device (publication number: CN208503965U), it includes a flange for connecting the oil and gas pipeline, a sealing cavity is provided on the flange, an air outlet screw hole is also provided on the sealing cavity, a piston tube is installed in the air outlet screw hole, a piston is installed in the piston tube, a groove is provided in the piston tube, an intermediate plate is fixed in the groove, a guide sleeve is provided on the intermediate plate, an insulating rod is slidably installed in the guide sleeve, a reset spring is provided between the guide sleeve and the piston, the bottom of the insulating rod is connected to the piston, a conductive sheet is installed on the top of the insulating rod, and the piston A battery box is fixed to the side of the tube, an alarm light is fixed to the side of the battery box, a rechargeable battery is installed in the battery box, a top cover is installed on the top of the piston tube, a buzzer is installed on the top cover, two contact pieces are provided at the bottom of the top cover, the buzzer, the alarm light and the rechargeable battery are connected in series; the utility model is widely used for leakage alarm of oil and gas pipelines, but in the above-mentioned device, it is difficult to achieve the effect of draining oil and gas while giving an alarm through the cooperation of components such as the flange and the piston tube, resulting in a part of the oil and gas at the leakage point cannot be collected, causing pollution, which needs to be improved. Utility Model Content

[0004] The purpose of the utility model is to provide an automatic alarm device for leakage in a long-distance oil and gas pipeline network. After the oil and gas flow into the device sleeve through the guide plate, the force-bearing plate inside the device sleeve is subjected to force, and then presents a downward state, so that the force-bearing plate squeezes the switch A, and then the switch A controls the alarm to start, thereby solving the existing problems.

[0005] In order to solve the above technical problems, the present invention is achieved through the following technical solutions:

[0006] The utility model is an automatic alarm device for leakage in a long-distance oil and gas pipeline network, comprising a pipeline mechanism, wherein the pipeline mechanism comprises an oil pipe, a connecting piece is fixedly sleeved on the outer surface of the oil pipe, a bolt is passed through one side of the connecting piece, and a nut is threadedly connected to the end of the bolt away from the connecting piece;

[0007] An alarm device is provided on the outside of the pipeline mechanism, and the alarm device includes a guide plate, one end of the guide plate is fixedly connected to the circumferential surface of the connecting piece, one side of the guide plate is fixedly connected to a limit plate, and one end of the guide plate away from the connecting piece is fixedly connected to a device sleeve, an alarm is provided at the bottom of the device sleeve, a force plate is slidably connected to the inner wall of the device sleeve, and a switch A is provided at the bottom of the inner wall of the device sleeve.

[0008] Furthermore, the number of the bolts is several, two in a group, and arrayed along the circumference on one side of the connecting plate, and the number of the nuts is consistent with the number of the bolts, two in a group, and arrayed along the circumference on one side of the connecting plate. The above design is conducive to connecting and fixing the pipes to each other through several bolts and nuts.

[0009] Furthermore, the shape of the guide plate is arc-shaped, the number of the guide plates is two, and they are symmetrical with each other along the vertical center axis of the device sleeve, and the number of the limit plates is two, and they are symmetrical with each other along the vertical center axis of the guide plate. The above design is conducive to introducing the leaked oil and gas into the device sleeve through the arc-shaped guide plate.

[0010] Furthermore, a cut-off mechanism is provided on the outside of the pipeline mechanism, and the cut-off mechanism includes a connecting plate, one end of the connecting plate is fixedly connected to the side of the limit plate away from the guide plate, the end of the connecting plate away from the limit plate is fixedly connected to the motor, the output shaft of the motor is fixedly connected to a rotating rod, the end of the rotating rod away from the motor passes through the oil pipe and is connected to the rotation of the oil pipe, a baffle is fixedly connected to the circumferential surface of the rotating rod, a switch B is provided at the bottom of the inner wall of the device sleeve, an electric wire is provided on the outer surface of the switch B, the end of the electric wire away from the switch B passes through the device sleeve and is fixedly connected to the device sleeve, and the end of the electric wire away from the switch B is electrically connected to the motor. The above design is conducive to immediate cutoff of oil and gas transportation.

[0011] Furthermore, there are two baffles, which are symmetrical to each other along the vertical center axis of the rotating rod. The baffles are located inside the oil pipe, and the inner wall of the oil pipe is located on the displacement trajectory of the baffles. The above design is conducive to sealing the inside of the oil pipe through the two baffles.

[0012] Furthermore, the switch B is located on the displacement track of the force-bearing plate, the switch B is located below the force-bearing plate, and the motor is located below the oil pipe. The above design is conducive to triggering the switch B through the force-bearing plate.

[0013] Furthermore, the switch A is located on the displacement track of the force-bearing plate, the switch A is located below the force-bearing plate, and the switch A is electrically connected to the alarm. The above design is conducive to triggering the alarm through the force-bearing plate.

[0014] The utility model has the following beneficial effects:

[0015] The utility model realizes that after the oil and gas flows into the device sleeve through the guide plate, the force-bearing plate inside the device sleeve is stressed and then presents a downward state, so that the force-bearing plate squeezes the switch A, and the switch A controls the activation of the alarm, thereby achieving the effect of draining the oil and gas while giving an alarm, and preventing the leaked oil and gas from flowing to the ground and causing pollution.

[0016] The utility model realizes that after the oil and gas flows into the device sleeve through the guide plate, the force-bearing plate inside the device sleeve is subjected to force and then presents a downward state, so that the force-bearing plate squeezes the switch B, and then the switch B starts the motor through the wire, so that the motor drives the rotating rod to rotate, and then the rotating rod drives the baffle to perform a circular motion, so that the baffle and the inner wall of the oil pipe come into contact with each other, thereby achieving the effect of quickly cutting off the flow of oil and gas. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the three-dimensional appearance structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the three-dimensional structure of the alarm device of the present invention when viewed from above;

[0019] Figure 3 This is a side view of the three-dimensional structure of the oil pipe of the present invention;

[0020] Figure 4 This is a schematic diagram of the three-dimensional structure of the device sleeve of the present invention;

[0021] Figure 5 It is a schematic diagram of the three-dimensional structure of the load-bearing plate of the present invention.

[0022] Figures: 1. Pipeline mechanism; 101. Oil pipe; 102. Connecting plate; 103. Bolt; 104. Nut; 2. Alarm device; 201. Drain plate; 202. Limit plate; 203. Device sleeve; 204. Alarm; 205. Force plate; 206. Switch A; 3. Cut-off mechanism; 301. Connecting plate; 302. Motor; 303. Rotating rod; 304. Baffle; 305. Switch B; 306. Electric wire. DETAILED DESCRIPTION Example 1

[0023] An automatic alarm device for leakage in a long-distance oil and gas pipeline network comprises a pipeline mechanism 1, which includes an oil pipe 101. A connecting piece 102 is fixedly sleeved on the outer surface of the oil pipe 101, a bolt 103 passes through one side of the connecting piece 102, and a nut 104 is threadedly connected to the end of the bolt 103 away from the connecting piece 102.

[0024] An alarm device 2 is provided on the outside of the pipeline mechanism 1, and the alarm device 2 includes a guide plate 201. One end of the guide plate 201 is fixedly connected to the circumferential surface of the connecting piece 102, and one side of the guide plate 201 is fixedly connected to a limiting plate 202. The end of the guide plate 201 away from the connecting piece 102 is fixedly connected to a device sleeve 203, and an alarm 204 is provided at the bottom of the device sleeve 203. The inner wall of the device sleeve 203 is slidably connected to a force plate 205, and the bottom of the inner wall of the device sleeve 203 is provided with a switch A206.

[0025] The number of bolts 103 is several, two in a group, and arranged along the circumference on one side of the connecting plate 102. The number of nuts 104 is consistent with the number of bolts 103, two in a group, and arranged along the circumference on one side of the connecting plate 102. The above design is conducive to connecting and fixing pipes to each other through several bolts 103 and nuts 104.

[0026] The shape of the guide plate 201 is arc-shaped, there are two guide plates 201, and they are symmetrical with each other along the vertical center axis of the device sleeve 203. The number of the limiting plates 202 is two, and they are symmetrical with each other along the vertical center axis of the guide plate 201. The above design is conducive to introducing the leaked oil and gas into the device sleeve 203 through the arc-shaped guide plate 201.

[0027] A specific application of this embodiment is: when oil and gas leak, the present application introduces the leaked oil and gas into the interior of the device sleeve 203 through the guide plate 201, so that the force-bearing plate 205 inside the device sleeve 203 is stressed and then presents a downward state, so that the force-bearing plate 205 squeezes the switch A206, and then the switch A206 controls the alarm 204 to start and sound an alarm, thereby achieving the effect of draining the oil and gas while sounding the alarm, thereby preventing the leaked oil and gas from flowing to the ground and causing pollution. Example 2

[0028] A cutting mechanism 3 is provided on the outside of the pipeline mechanism 1, and the cutting mechanism 3 includes a connecting plate 301, one end of the connecting plate 301 is fixedly connected to the side of the limit plate 202 away from the guide plate 201, and the end of the connecting plate 301 away from the limit plate 202 is fixedly connected to the motor 302, and the output shaft of the motor 302 is fixedly connected to the rotating rod 303, and the end of the rotating rod 303 away from the motor 302 passes through the oil pipe 101 and is connected to the rotation of the oil pipe 101, and a baffle 304 is fixedly connected to the circumferential surface of the rotating rod 303, a switch B305 is provided at the bottom of the inner wall of the device sleeve 203, and an electric wire 306 is provided on the outer surface of the switch B305, and the end of the electric wire 306 away from the switch B305 passes through the device sleeve 203 and is fixedly connected to the device sleeve 203, and the end of the electric wire 306 away from the switch B305 is electrically connected to the motor 302. The above design is conducive to timely cutting off the transportation of oil and gas.

[0029] There are two baffles 304 , which are symmetrical to each other along the vertical center axis of the rotating rod 303 . The baffles 304 are located inside the oil pipe 101 , and the inner wall of the oil pipe 101 is located on the displacement trajectory of the baffles 304 . The above design is conducive to sealing the inside of the oil pipe 101 through the two baffles 304 .

[0030] The switch B305 is located on the displacement track of the force-bearing plate 205 . The switch B305 is located below the force-bearing plate 205 . The motor 302 is located below the oil pipe 101 . The above design is conducive to triggering the switch B305 through the force-bearing plate 205 .

[0031] The switch A206 is located on the displacement track of the force-bearing plate 205 , and the switch A206 is located below the force-bearing plate 205 . The switch A206 is electrically connected to the alarm 204 . The above design is conducive to triggering the alarm 204 through the force-bearing plate 205 .

[0032] A specific application of this embodiment is: the force plate 205 squeezes the switch B305, and then the switch B305 starts the motor 302 through the wire 306, so that the motor 302 drives the rotating rod 303 to rotate, and then the rotating rod 303 drives the baffle 304 to move in a circular motion, so that the baffle 304 contacts the inner wall of the oil pipe 101, thereby achieving the effect of quickly cutting off the flow of oil and gas.

Claims

1. An automatic alarm device for leakage in a long-distance oil and gas pipeline network, comprising a pipeline mechanism (1), characterized in that: The pipeline mechanism (1) comprises an oil pipe (101), a connecting piece (102) is fixedly sleeved on the outer surface of the oil pipe (101), a bolt (103) passes through one side of the connecting piece (102), and a nut (104) is threadedly connected to one end of the bolt (103) away from the connecting piece (102); An alarm device (2) is provided on the outside of the pipeline mechanism (1), and the alarm device (2) comprises a guide plate (201), one end of the guide plate (201) is fixedly connected to the circumferential surface of the connecting plate (102), one side of the guide plate (201) is fixedly connected to the limit plate (202), one end of the guide plate (201) away from the connecting plate (102) is fixedly connected to a device sleeve (203), an alarm (204) is provided at the bottom of the device sleeve (203), a force-bearing plate (205) is slidably connected to the inner wall of the device sleeve (203), and a switch A (206) is provided at the bottom of the inner wall of the device sleeve (203).

2. The automatic alarm device for leakage in a long-distance oil and gas pipeline network according to claim 1 is characterized in that: The number of the bolts (103) is several, arranged in groups of two, and arranged along a circumferential array on one side of the connecting plate (102). The number of the nuts (104) is consistent with the number of the bolts (103), arranged in groups of two, and arranged along a circumferential array on one side of the connecting plate (102).

3. The automatic alarm device for leakage in a long-distance oil and gas pipeline network according to claim 2 is characterized in that: The guide plate (201) is in an arc shape, there are two guide plates (201) and they are symmetrical to each other along the vertical center axis of the device sleeve (203), and there are two limit plates (202) and they are symmetrical to each other along the vertical center axis of the guide plate (201).

4. The automatic alarm device for leakage in a long-distance oil and gas pipeline network according to claim 3 is characterized in that: The pipeline mechanism (1) is provided with a cut-off mechanism (3) on the outside. The cut-off mechanism (3) comprises a connecting plate (301). One end of the connecting plate (301) is fixedly connected to a side of the limiting plate (202) away from the guide plate (201). The end of the connecting plate (301) away from the limiting plate (202) is fixedly connected to a motor (302). The output shaft of the motor (302) is fixedly connected to a rotating rod (303). The end of the rotating rod (303) away from the motor (302) passes through the oil pipe (101). The rotating rod (303) is connected to the oil pipe (101) for rotation. A baffle (304) is fixedly connected to the circumferential surface of the rotating rod (303). A switch B (305) is provided at the bottom of the inner wall of the device sleeve (203). An electric wire (306) is provided on the outer surface of the switch B (305). One end of the electric wire (306) away from the switch B (305) passes through the device sleeve (203) and is fixedly connected to the device sleeve (203). One end of the electric wire (306) away from the switch B (305) is electrically connected to the motor (302).

5. The automatic alarm device for leakage in a long-distance oil and gas pipeline network according to claim 4 is characterized in that: There are two baffles (304) and they are symmetrical to each other along the vertical center axis of the rotating rod (303). The baffles (304) are located inside the oil pipe (101), and the inner wall of the oil pipe (101) is located on the displacement track of the baffles (304).

6. The automatic alarm device for leakage in a long-distance oil and gas pipeline network according to claim 5 is characterized in that: The switch B (305) is located on the displacement track of the force-bearing plate (205), the switch B (305) is located below the force-bearing plate (205), and the motor (302) is located below the oil pipe (101).

7. The automatic alarm device for leakage in a long-distance oil and gas pipeline network according to claim 6 is characterized in that: The switch A (206) is located on the displacement track of the force-bearing plate (205), the switch A (206) is located below the force-bearing plate (205), and the switch A (206) is electrically connected to the alarm (204).

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