CN219046037U

CN219046037U - Closed natural gas sampler

Info

Publication number: CN219046037U
Application number: CN202223185026.7U
Authority: CN
Inventors: 陈伟; 季春雷; 管鑫池
Original assignee: Jiangsu Classic Energy Equipment Co ltd
Current assignee: Jiangsu Classic Energy Equipment Co ltd
Priority date: 2022-11-30
Filing date: 2022-11-30
Publication date: 2023-05-19
Anticipated expiration: 2032-11-30

Abstract

The utility model belongs to the technical field of natural gas sampling and detection, and discloses a natural gas closed sampler, which comprises a sampling bottle (1), a communicating pipe (2), a delivery pipe (8) and a limiting ring (3), wherein a movable supporting rod (4) with a plugging piece (7) fixed at the bottom end is penetrated in the limiting ring (3); the top end of the movable supporting rod (4) is provided with a mesh plate (5); a reset spring (6) is arranged between the mesh plate (5) and the limiting ring (3); the mesh plate (5) is provided with a sealing ring (15) through a sealing groove (14); one side surface of the delivery pipe (8) is provided with an exhaust port (9), and the other side surface is provided with a rod hole (11); a blocking block (13) is arranged on the exhaust port (9); the plugging block (13) is connected with a small cylinder (19) through a telescopic rod (10); the small cylinder (19) is arranged on the side surface of the delivery pipe (8). The plugging block is connected with the small cylinder through the telescopic rod, so that the structure of gas guiding out at the bottom of the sampling bottle is simplified, and the manufacturing cost is reduced.

Description

Closed natural gas sampler

Technical Field

The utility model belongs to the technical field of natural gas sampling and detection, and particularly relates to a natural gas airtight sampler.

Background

The sampling, storage and transportation of liquefied petroleum gas, natural gas, ethylene, propylene, butadiene and other gases and liquids under the same operation condition usually adopts a natural gas sampling steel bottle, and the existing natural gas sampling steel bottle consists of a steel bottle formed by disposable extrusion, a through pressure-reducing needle valve, a three-way explosion-proof pressure-reducing needle valve, a pointer pressure gauge and the like, and when in sampling, two valves are required to be controlled to operate simultaneously, so that the operation difficulty is high, and the sampling process is relatively complex.

CN216771208U discloses a natural gas sampler, its conduction mechanism includes the blast pipe, set up the shutoff communicating pipe that plays shutoff control effect to the blast pipe on the blast pipe, shutoff communicating pipe internal fixation connects Z type shutoff board, Z type shutoff inboard connection has the removal shutoff piece, one side that the shutoff communicating pipe was kept away from to the removal shutoff piece is connected with control screw rod, control screw rod and shutoff communicating pipe threaded connection, control screw rod is located the outside one end fixedly connected with rotary control spare of shutoff communicating pipe, rotary control spare rotary control screw rod carries out the motion control to the removal shutoff piece, its conduction mechanism structure is more complicated, manufacturing cost is relatively higher.

Disclosure of Invention

The utility model aims to solve the technical problem of providing the natural gas airtight sampler which is simple in structure and convenient to operate and is derived from the bottom of a sampling bottle.

In order to solve the technical problems, the utility model provides a natural gas closed sampler which comprises a sampling bottle, a communicating pipe and an eduction tube; a limiting ring is arranged in the communicating pipe, and a movable supporting rod with a bottom fixed with a plugging piece is arranged in the limiting ring in a penetrating way; the top end of the movable supporting rod is provided with a mesh plate; a return spring is sleeved on the movable supporting rod between the mesh plate and the limiting ring; the side of the mesh plate is provided with a sealing groove, and a sealing ring is arranged in the sealing groove; one side surface of the delivery pipe is provided with an exhaust port, and the other side surface is provided with a rod hole; a blocking block is arranged on the exhaust port; the plugging block is arranged at one end of the telescopic rod, the telescopic rod penetrates out of the rod hole, and the other end of the telescopic rod is connected with a piston rod of the small cylinder through a pin shaft; the small-sized cylinder is arranged on the side face of the delivery pipe.

Through adopting above technical scheme, the shutoff piece passes through the telescopic link and is connected with small-size cylinder, simplifies the structure of sampling bottle bottom gas derivation, reduction in manufacturing cost.

Further, a sealing ring is arranged in the rod hole through a positioning block, and the positioning block and the delivery pipe are fixed into a whole.

Through adopting above technical scheme, with the sealing ring location in the locating piece, the sealing ring is deviate from when avoiding the lead screw to stretch out and draw back, ensures sealed effect, improves work efficiency.

Further, the plugging block is semicircular, and the arc surface is tightly attached to the exhaust port.

By adopting the technical scheme, the arc surface of the plugging block is tightly attached to the exhaust port. The fixed-point plugging is realized by the plugging block and the exhaust port.

Further, a sampling conduit is fixedly arranged on the outer circle of the mesh plate.

Through adopting above technical scheme, the sampling pipe that switches on passes through mesh board and sampling bottle intercommunication, during natural gas sampling, as long as with the sampling pipe in the bottle direction extrusion can, the shutoff piece can break away from the bottleneck along with the pushing down of mesh board, leaves the air inlet, in the hole that natural gas passed through mesh board, spacing ring in proper order gets into the sampling bottle, easy operation improves work efficiency.

Further, the inner wall of the sampling bottle is coated with a Soxhlet CMI heavy anti-corrosion coating.

By adopting the technical scheme, trace elements are prevented from being adsorbed on the surface of the stainless steel through the Soxhlet CMI heavy-duty anticorrosive coating.

Further, the end part of the telescopic rod is provided with a step, and the end part of the piston rod is provided with a step groove; the steps are matched with the step grooves and are connected through pin shafts.

Through adopting above technical scheme, step and step groove pass through the round pin hub connection, avoid long-time work back telescopic link pine to take off, improve life.

Further, the diameter of the inner hole of the limiting ring is larger than the outer diameter of the movable supporting rod.

Through adopting above technical scheme, make spacing ring and remove the bracing piece between leave the space, be favorable to sampling gas to get into in the sampling bottle from spacing ring and the clearance between the bracing piece that removes.

Compared with the prior art, the utility model has the following beneficial effects:

1. the plugging block is connected with the small cylinder through the telescopic rod to form a natural gas guiding structure, so that the structure for guiding out the gas at the bottom of the sampling bottle is simplified, and the manufacturing cost is reduced.

2. The side of the mesh plate is provided with a sealing groove, and a sealing ring is arranged in the sealing groove; the mechanism for directly connecting the sampling mechanism at the top of the sampling bottle with the sealing ring around the mesh plate is connected with the communicating pipe to realize sealing, the structure is simple, the production is convenient, the use is convenient, and the difficulty of sampling operation is reduced.

3. The end part of the telescopic rod is provided with a step, and the end part of the piston rod is provided with a step groove; the step is connected with the step groove of the small cylinder piston rod through the pin shaft in an anastomotic manner, so that the telescopic rod is prevented from loosening after long-time work, and the service life is prolonged.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model.

FIG. 2 is a schematic diagram of a mesh plate according to the present utility model.

FIG. 3 is a schematic view of the seal ring installation of the present utility model.

Fig. 4 is a schematic diagram of the connection of the telescopic rod and the small cylinder according to the present utility model.

In the figure, 1, a sampling bottle, 2, a communicating pipe, 3, a limiting ring, 4, a movable supporting rod, 5, a mesh plate, 6, a return spring, 7, a plugging piece, 8, a delivery pipe, 9, an exhaust port, 10, a telescopic rod, 11, a rod hole, 12, a sealing ring, 13, a plugging block, 14, a sealing groove, 15, a sealing ring, 16, a stepped groove, 17, a pin shaft, 18, a piston rod, 19, a small cylinder, 20, a bracket, 21, a positioning block, 22, a sampling conducting pipe and 23, a step.

Detailed Description

As shown in fig. 1 and 2, the natural gas airtight sampler comprises a sampling bottle 1, wherein a communicating pipe 2 is arranged at the top of the sampling bottle 1, an eduction tube 8 is arranged at the bottom of the sampling bottle 1, a limiting ring 3 is arranged in the communicating pipe 2, and a movable supporting rod 4 is arranged in a penetrating hole of the limiting ring 3 in a penetrating way. The top end of the movable supporting rod 4 is fixedly connected with a mesh plate 5, and sampled natural gas enters the sampling bottle 1 through the mesh plate 5. The bottom end of the movable supporting rod 4 is fixedly connected with a blocking piece 7, and a reset spring 6 is sleeved on the movable supporting rod 4 between the mesh plate 5 and the limiting ring 3. The purpose of opening the plugging piece 7 and closing the sampling bottle mouth is achieved through the expansion and contraction of the reset spring 6. The sealing groove 14 is arranged on the side edge of the mesh plate 5, and the sealing ring 15 is arranged in the sealing groove 14, so that the mechanism for sampling the top of the sampling bottle 1 is directly connected with the sealing ring 15 around the mesh plate 5 and is connected with the communicating pipe 2 to realize sealing, the structure is simple, the production is convenient, the use is convenient and fast, and the difficulty of sampling operation is reduced. One side surface of the delivery pipe 8 is provided with an exhaust port 9, and the other side surface is provided with a rod hole 11; a blocking block 13 is arranged on the exhaust port 9; the plugging block 13 is arranged at one end of the telescopic rod 10, the telescopic rod 10 penetrates out of the rod hole 11, and the other end of the telescopic rod 10 is connected with a piston rod 18 of the small cylinder 19 through a pin shaft 17; a small cylinder 19 is mounted on the side of the delivery tube 8. The plugging block 13 is connected with the small-sized cylinder 19 through the telescopic rod, so that the structure of gas guiding out from the bottom of the sampling bottle is simplified, and the manufacturing cost is reduced.

The inner wall of the sampling bottle 1 is coated with a Soxhlet CMI heavy anti-corrosion coating to prevent microelements from being adsorbed on the surface of stainless steel.

The plugging block 13 is semicircular, the arc surface is tightly attached to the exhaust port 9, and fixed-point plugging is realized by the plugging block 13 and the exhaust port 9.

The outer circle of the mesh plate 5 is fixedly provided with a sampling conduit 22. The sampling conduction pipe 22 is communicated with the sampling bottle 1 through the mesh plate 5, when natural gas is sampled, the sampling conduction pipe 22 is extruded into the bottle, the plugging piece 7 is separated from the bottle mouth along with the downward pressing of the mesh plate 5, an air inlet is reserved, natural gas sequentially enters the sampling bottle 1 through the mesh plate 5 and the inner hole of the limiting ring 3, the operation is simple, and the working efficiency is improved.

The diameter of the inner hole of the limiting ring 3 is larger than the outer diameter of the movable supporting rod 4, so that sampling gas can enter the sampling bottle 1 from a gap between the limiting ring 3 and the movable supporting rod 4.

The small cylinder 19 is mounted on the delivery pipe 8 through a bracket 20, and the support and positioning of the small cylinder 19 are realized through the bracket 20. The mini cylinder 19 may be a Simaite Siemett MA series mini cylinder.

As shown in fig. 3, the rod hole 11 is provided with a seal ring 12 by a positioning block 21, and the positioning block 21 is fixed to the delivery tube 8 as a whole. The delivery tube 8 is drilled with a step left as a left-hand locating block 21, and the right-hand locating block 21 is welded to the delivery tube 8. The sealing ring 12 is positioned in the positioning block 21, so that the sealing ring 12 is prevented from falling off when the piston rod 18 stretches out and draws back, the sealing effect is ensured, and the working efficiency is improved.

As shown in fig. 4, the end of the telescopic rod 10 is provided with a step 23, and the end of the piston rod 18 is provided with a step groove 16; the step 23 is engaged with the step groove 16 and connected by the pin 17. The step 23 is connected with the step groove 16 of the small cylinder piston rod 18 through the pin shaft 17, so that the telescopic rod 10 is prevented from loosening after long-time working, and the service life is prolonged.

When in use, the small cylinder 19 is operated to retract the piston rod 18, and the plugging block 13 is opened, so that the exhaust gas is conveniently discharged. The outside sampling pipe is communicated with the sampling communicating pipe 22, the sampling communicating pipe 22 is extruded downwards, the reset spring 6 is compressed downwards along with the mesh plate 5, the mesh plate 5 is sealed with the communicating pipe 2 through the sealing ring 15 around the mesh plate 5, the plugging piece 7 is opened by pressing the movable supporting rod 4 downwards through the mesh plate 5, and natural gas flows through the sampling communicating pipe 22, through the mesh plate 5 and the limiting ring 3 and enters the sampling bottle 1. The exhaust gas in the sampling bottle 1 is discharged through the exhaust port 9. After exhaust, the small cylinder 19 is operated to extend the piston rod 18, and the blocking block 13 blocks the exhaust port 9. After the sampling is completed, the external sampling tube is pulled out, the reset spring 6 is rebounded and reset, and the plugging piece 7 is closed to the sampling bottle opening under the action of elasticity, so that plugging is realized. The sampling operation is convenient, and the working efficiency is improved.

It will be appreciated by persons skilled in the art that the embodiments of the utility model described above and shown in the drawings are by way of example only and are not limiting. The objects of the present utility model have been fully and effectively achieved. The functional and structural principles of the present utility model have been shown and described in the examples and embodiments of the utility model may be modified or practiced without departing from the principles described.

Claims

1. The natural gas airtight sampler comprises a sampling bottle (1), a communicating pipe (2) and a delivery pipe (8); a limiting ring (3) is arranged in the communicating pipe (2), and a movable supporting rod (4) with a plugging piece (7) fixed at the bottom end is arranged in the limiting ring (3) in a penetrating way; the method is characterized in that: the top end of the movable supporting rod (4) is provided with a mesh plate (5); a return spring (6) is sleeved on the movable supporting rod (4) between the mesh plate (5) and the limiting ring (3); a sealing groove (14) is formed in the side edge of the mesh plate (5), and a sealing ring (15) is arranged in the sealing groove (14); one side surface of the delivery pipe (8) is provided with an exhaust port (9), and the other side surface is provided with a rod hole (11); a plugging block (13) is arranged on the exhaust port (9); the plugging block (13) is arranged at one end of the telescopic rod (10), the telescopic rod (10) penetrates out of the rod hole (11), and the other end of the telescopic rod (10) is connected with a piston rod (18) of the small cylinder (19) through a pin shaft (17); the small cylinder (19) is arranged on the side face of the delivery pipe (8).

2. The natural gas containment sampler of claim 1, wherein: a sealing ring (12) is arranged in the rod hole (11) through a positioning block (21), and the positioning block (21) and the delivery pipe (8) are fixed into a whole.

3. The natural gas containment sampler of claim 1, wherein: the plugging block (13) is semicircular, and the arc surface is tightly attached to the exhaust port (9).

4. The natural gas containment sampler of claim 1, wherein: the excircle of the mesh plate (5) is fixedly provided with a sampling guide pipe (22).

5. The natural gas containment sampler of claim 1, wherein: the inner wall of the sampling bottle (1) is coated with a Soxhlet CMI heavy anti-corrosion coating.

6. The natural gas containment sampler of claim 1, wherein: the end part of the telescopic rod (10) is provided with a step (23), and the end part of the piston rod (18) is provided with a step groove (16); the step (23) is matched with the step groove (16) and is connected with the step groove through a pin shaft (17).

7. The natural gas containment sampler of claim 1, wherein: the diameter of the inner hole of the limiting ring (3) is larger than the outer diameter of the movable supporting rod (4).