Portable on-line sampling device for natural gas conveying pipeline

Abstract

A portable on-line sampling device for a natural gas conveying pipeline comprises a sampling box, a sampling assembly is arranged in the sampling box, a water pipe protection box and an outer box are fixed to the two sides of the sampling box respectively, and the bottom end of the sampling box and the bottom end of the outer box are both connected with a damping plate through telescopic dampers; universal wheels and an electric push rod are fixed to the bottom end of the damping plate, the electric push rod is connected with a supporting base, the sampling assembly is connected with one end of an elastic hose located in the water pipe protection box, the other end of the elastic hose is connected with a third sampling pipe, and the third sampling pipe is connected with a sampling connector. The third sampling pipe is clamped into a water pipe buckle, a telescopic pull rod is installed in the outer box, telescopic straps are arranged on the outer side face of the outer box, the sampling device is convenient for sampling personnel to carry and use, and the convenience of sampling operation is improved.

Description

Technical Field

[0001] This utility model relates to the field of natural gas sampling technology, specifically to a portable online sampling device for natural gas transmission pipelines. Background Technology

[0002] Natural gas is a mixture of hydrocarbons that exists deep underground and is a high-quality fuel and chemical raw material. Natural gas needs to be transported through pipelines. During the transportation of natural gas, it is necessary to sample and test the natural gas in the pipelines at regular intervals. However, the existing sampling devices for natural gas pipelines are large and inconvenient for staff to carry, causing inconvenience to the sampling work. Utility Model Content

[0003] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a portable online sampling device for natural gas pipelines, which is convenient for sampling personnel to carry and use, and improves the convenience of sampling operations.

[0004] The technical solution adopted in this utility model is a portable online sampling device for natural gas transmission pipelines, including a sampling box. The sampling box contains a sampling component. A water pipe protective box and an outer box are fixed on both sides of the sampling box. The bottom of the sampling box and the outer box are connected to a shock-absorbing plate through a telescopic shock absorber. A universal wheel and an electric push rod are fixed on the bottom of the shock-absorbing plate. The electric push rod is connected to a support base. The sampling component is connected to one end of an elastic hose located inside the water pipe protective box. The other end of the elastic hose is connected to a third sampling tube. The third sampling tube is connected to a sampling connector and is inserted into a water pipe clip. A telescopic pull rod is installed inside the outer box, and a telescopic shoulder strap is provided on the outer side of the outer box.

[0005] The sampling assembly includes a mounting plate fixed inside a sampling box, a sampling gas cylinder fixed on the mounting plate, a pressure gauge mounted on the top of the sampling gas cylinder, a gas outlet pipe sealed to one side of the upper part of the sampling gas cylinder, the tail end of the gas outlet pipe extending out of the top of the sampling box and connected to a gas outlet pipe connector, a gas outlet electrically controlled valve mounted on the gas outlet pipe, a first sampling tube sealed to one side of the bottom of the sampling gas cylinder, the first sampling tube connected to a second sampling tube via a sampling pump, the second sampling tube extending into a water pipe protection box and connected to a flexible hose, an air inlet electrically controlled valve mounted on the first sampling tube, and reinforcing clamps on both sides of the middle part of the sampling gas cylinder, the reinforcing clamps being connected to a support rod fixed inside the sampling box.

[0006] The portion of the air outlet pipe located inside the sampling box is fixed by a water pipe bracket.

[0007] The sampling box has a first protective door on one side, and the first protective door has an observation window and a switch control group. The top of the sampling box has a first through hole, and an air outlet pipe passes through the first through hole. The bottom connection between the sampling box and the water pipe protective box has the same second through hole, and a second sampling pipe passes through the second through hole.

[0008] The water pipe protection box is equipped with a second protective door.

[0009] The mounting plate is provided with a third through hole, through which a first sampling tube passes.

[0010] The outer side of the outer box is also provided with a protective pad.

[0011] The switch control group is electrically connected to the electric push rod, the sampling pump, the outlet electric control valve, and the inlet electric control valve, respectively.

[0012] The beneficial effects of this utility model are as follows: An outer casing is provided on one side of the sampling box, a telescopic pull rod is installed inside the outer casing, and a telescopic shoulder strap is provided on the side of the outer casing. Telescopic shock absorbers and shock-absorbing plates are installed on the bottom of the sampling box and the outer casing, and casters are installed on the bottom of the shock-absorbing plates. When the sampling device needs to be moved, simply pull out the telescopic pull rod and drag it to move the sampling device under the action of the casters. When encountering difficult terrain, the telescopic shoulder strap can be placed across the shoulders of the sampling personnel to carry the sampling device, solving the problem of existing sampling devices being too bulky and inconvenient to carry. Simultaneously, the telescopic shock absorber and shock-absorbing plate can alleviate the bumps experienced by the sampling device during pulling, which helps to reduce the vibration of the sampling components inside the sampling box and facilitates the safe movement of the sampling components.

[0013] In this invention, a protective pad is also provided on the side of the outer box, which can improve the comfort of the sampling personnel when carrying the sampling device.

[0014] In this invention, a first protective door is provided on the side of the sampling box. An observation window and a switch control group are provided on the first protective door. The observation window facilitates the observation of the pressure gauge value, and the switch control group facilitates the control of the electric actuator, sampling pump, outlet electric control valve and inlet electric control valve. Sampling operations can be carried out without opening the first protective door, which improves the convenience of using this sampling device.

[0015] In this utility model, a water pipe protection box is provided, and a second protective door is provided on the water pipe protection box to protect the flexible hose, the third sampling tube and the sampling connector, which is beneficial to the safety and use of the flexible hose, the third sampling tube and the sampling connector.

[0016] In this invention, the sampling gas cylinder is fixed on the mounting plate, which ensures the stability of the sampling gas cylinder during movement. Furthermore, it is equipped with reinforcing clamps and support rods on both sides, which further improves the stability and safety of the sampling gas cylinder during movement. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0018] Figure 2 This is a front view schematic diagram of the first protective door of this utility model.

[0019] Figure 3 This is a schematic diagram of the first perforation and sampling box of this utility model.

[0020] Figure 4 This is a schematic diagram of the second perforation position of this utility model.

[0021] Figure 5 This is a schematic diagram of the second protective door and water pipe protective box of this utility model.

[0022] Figure 6 This is a schematic diagram of the third perforation and mounting plate of this utility model.

[0023] Figure 7 This is a front view of the outer casing of this utility model.

[0024] In the diagram: 1. Sampling box, 2. Shock absorber, 3. Support base, 4. Electric actuator, 5. Casters, 6. Telescopic shock absorber, 7. Sampling pump, 8. Second sampling tube, 9. Flexible hose, 10. Water pipe clamp, 11. Water pipe protective box, 12. Third sampling tube, 13. Sampling connector, 14. Water pipe bracket, 15. Gas outlet connector, 16. Gas outlet pipe, 17. Gas outlet electric control valve, 18. Pressure gauge, 19. Sampling gas storage cylinder, 20. Telescopic pull rod, 21. Outer box, 22. Telescopic shoulder strap, 23. Reinforcing clamp, 24. Support rod, 25. Mounting support plate, 26. First sampling tube, 27. Gas inlet electric control valve, 28. First protective door, 29. Observation window, 30. Switch control group, 31. First perforation, 32. Second perforation, 33. Second protective door, 34. Third perforation, 35. Protective pad. Detailed Implementation

[0025] The accompanying drawings are for illustrative purposes only and should not be construed as limiting the scope of this patent. To better illustrate this embodiment, some components in the drawings may be omitted, enlarged, or reduced, and do not represent the actual dimensions of the product. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings.

[0026] Referring to the accompanying drawings, a portable online sampling device for natural gas pipelines includes a sampling box 1, which contains a sampling component. A water pipe protection box 11 and an outer box 21 are fixed to both sides of the sampling box 1. The bottom ends of both the sampling box 1 and the outer box 21 are connected to a shock-absorbing plate 2 via a telescopic shock absorber 6. A caster wheel 5 and an electric push rod 4 are fixed to the bottom end of the shock-absorbing plate 2. The electric push rod 4 is connected to a support base 3. The sampling component is connected to one end of an elastic hose 9 located inside the water pipe protection box 11. The other end of the elastic hose 9 is connected to a third sampling tube 12. The third sampling tube 12 is connected to a sampling connector 13 and is inserted into a water pipe clip 10. A telescopic pull rod 20 is installed inside the outer box 21, and a telescopic shoulder strap 22 is provided on the outer surface of the outer box 21.

[0027] The sampling assembly includes a mounting plate 25 fixed inside the sampling box 1. A sampling gas cylinder 19 is fixed on the mounting plate 25. A pressure gauge 18 is installed on the top of the sampling gas cylinder 19. An outlet pipe 16 is sealed to one side of the upper part of the sampling gas cylinder 19. The tail end of the outlet pipe 16 extends out of the top of the sampling box 1 and connects to an outlet pipe connector 15. An outlet electric control valve 17 is installed on the outlet pipe 16. A first sampling tube 26 is sealed to one side of the bottom of the sampling gas cylinder 19. The first sampling tube 26 is connected to a second sampling tube 8 through a sampling pump 7. The second sampling tube 8 extends into a water pipe protection box 11 and connects to an elastic hose 9. An inlet electric control valve 27 is installed on the first sampling tube 26. Reinforcing clamps 23 are provided on both sides of the middle part of the sampling gas cylinder 19. The reinforcing clamps 23 are connected to a support rod 24 fixed inside the sampling box 1.

[0028] The portion of the air outlet pipe 16 located inside the sampling box 1 is fixed by the water pipe bracket 14.

[0029] The sampling box 1 has a first protective door 28 on one side, and the first protective door 28 has an observation window 29 and a switch control group 30. The top of the sampling box 1 has a first through hole 31, and an air outlet pipe 16 passes through the first through hole 31. The bottom connection between the sampling box 1 and the water pipe protection box 11 has the same second through hole 32, and a second sampling pipe 8 passes through the second through hole 32.

[0030] The water pipe protection box 11 is equipped with a second protective door 33.

[0031] The mounting plate 25 is provided with a third through hole 34, and a first sampling tube 26 passes through the third through hole 34.

[0032] The outer side of the outer casing 21 is also provided with a protective pad 35.

[0033] The switch control group 30 is electrically connected to the electric push rod 4, the sampling pump 7, the outlet electric control valve 17, and the inlet electric control valve 27, respectively.

[0034] When using this portable online sampling device for natural gas pipelines, first activate the electric actuator 4 via the switch control group 30. The electric actuator 4 moves the support base 3 downward, allowing the support base 3 to support the sampling device. Then, open the second protective door 33 and pull the third sampling tube 12 out of the water pipe clip 10. Next, connect the sampling connector 13 to the gas pipeline connector. Then, activate the sampling pump 7 and the inlet electric control valve 27 via the switch control group 30, allowing the natural gas sample to enter the sampling storage cylinder 19 sequentially from the third sampling tube 12, the elastic hose 9, the second sampling tube 8, and the first sampling tube 26. During sampling, the pressure gauge 18 can be observed in real time through the observation window 29 to ensure sampling safety.

[0035] When the sampling device needs to be moved, the third sampling tube 12 is retracted into the water pipe protection box 11, then the second protective door 33 is locked, then the electric push rod 4 is activated to retract the support base 3, and then the telescopic rod 20 is pulled out, so that the telescopic rod 20 can be pulled to move it; when the telescopic rod 20 is pulled to move, the telescopic shock absorber 6 can buffer the vibration of the sampling box 1 and the outer box 21 during the movement; if the road is not suitable for moving the sampling device, the telescopic shoulder strap 22 can be pulled out to carry the sampling device, which also facilitates the movement of the sampling device.

[0036] In this invention, an outer box 21 is provided on one side of the sampling box 1. A telescopic pull rod 20 is installed inside the outer box 21, and a telescopic shoulder strap 22 is provided on the side of the outer box 21. A telescopic shock absorber 6 and a shock-absorbing plate 2 are installed on the bottom of the sampling box 1 and the outer box 21, and a universal wheel 5 is installed on the bottom of the shock-absorbing plate 2. When it is necessary to move this sampling device, simply pull out the telescopic pull rod 20 and drag it to move the sampling device under the action of the universal wheel 5. When encountering difficult roads, simply cross the telescopic shoulder strap 22 over the shoulders of the sampling personnel to carry the sampling device. This solves the problem that existing sampling devices are large and inconvenient to carry. At the same time, the telescopic shock absorber 6 and the shock-absorbing plate 2 can alleviate the bumps experienced by this sampling device during the pulling process, which is beneficial to reducing the vibration of the sampling components inside the sampling box and is conducive to the safe movement of the sampling components.

[0037] In this invention, a protective pad 35 is also provided on the side of the outer box 21, which can improve the comfort of the sampling personnel when carrying the sampling device.

[0038] In this invention, a first protective door 28 is provided on the side of the sampling box 1. An observation window 29 and a switch control group 30 are provided on the first protective door 28. The observation window 29 facilitates observation of the pressure gauge 18 value, and the switch control group 30 facilitates control of the electric push rod 4, sampling pump 7, outlet electric control valve 17 and inlet electric control valve 27. Sampling operations can be carried out without opening the first protective door 28, which improves the convenience of using this sampling device.

[0039] In this utility model, a water pipe protection box 11 is provided, and a second protective door 33 is provided on the water pipe protection box 11 to protect the elastic hose 9, the third sampling tube 12 and the sampling connector 13, which is beneficial to the safety and use of the elastic hose 9, the third sampling tube 12 and the sampling connector 13.

[0040] In this invention, the sampling gas cylinder 19 is fixed on the mounting plate 25, which ensures the stability of the sampling gas cylinder 19 during movement. Furthermore, it is equipped with reinforcing clamps 23 and support rods 24 on both sides, which further improves the stability and safety of the sampling gas cylinder 19 during movement.

[0041] The above-described embodiments are merely examples for clearly illustrating the present invention and are not intended to limit the implementation of the present invention. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively describe all possible implementations. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. A portable natural gas pipeline on-line sampling device comprising a sampling box (1), characterized in that: The sampling box (1) is fixed with water pipe protection box (11) and outer box (21) respectively on both sides, the sampling box (1) and outer box (21) bottom are connected to damping plate (2) through telescopic shock absorber (6), the damping plate (2) bottom is fixed with universal wheel (5) and electric push rod (4), the electric push rod (4) is connected to support seat (3);The outer box (21) is installed with telescopic pull rod (20), the outer box (21) outside is provided with telescopic shoulder strap (22);The sampling box (1) is provided with sampling assembly, the second sampling pipe (8) of the sampling assembly is connected to one end of the elastic hose (9) in the water pipe protection box (11), the other end of the elastic hose (9) is connected to the third sampling pipe (12), the third sampling pipe (12) is connected to the sampling joint (13), the third sampling pipe (12) is clamped into the water pipe buckle (10), the sampling assembly includes the installation support plate (25) fixed in the sampling box (1), the sampling gas cylinder (19) is fixed on the installation support plate (25), the pressure gauge (18) is installed on the top of the sampling gas cylinder (19), the upper portion of the sampling gas cylinder (19) is sealedly connected with the gas outlet pipe (16), the tail end of the gas outlet pipe (16) is connected with the gas outlet pipe joint (15) through the top of the sampling box (1), the gas outlet electric control valve (17) is installed on the gas outlet pipe (16), the bottom of the sampling gas cylinder (19) is sealedly connected with the first sampling pipe (26), the first sampling pipe (26) is installed with the air inlet electric control valve (27), the first sampling pipe (26) is connected with the second sampling pipe (8) through the sampling pump (7), the middle portion of the sampling gas cylinder (19) is provided with the reinforcing clamping plate (23) on both sides, the reinforcing clamping plate (23) is connected with the support rod (24) fixed in the sampling box (1).

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