Natural gas sampling device

Abstract

The utility model discloses a natural gas sampling device and belongs to the technical field of sampling devices. A natural gas sampling device comprises a sampling steel cylinder, a plurality of split steel cylinders are arranged in the middle of the sampling steel cylinder in a circular array mode, one end of each split steel cylinder is fixedly connected with a split gas inlet, the other end of each split steel cylinder is fixedly connected with a split discharge port, a first valve is movably installed on each split gas inlet, and a second valve is movably installed on each split gas outlet. One side of the sampling steel cylinder is fixedly connected with a gas guide pipe, and the other side of the sampling steel cylinder is fixedly connected with a lead-out pipe. A plurality of split steel cylinders are arranged on the sampling device, so that gas samples of the plurality of steel cylinders can be obtained by one-time sampling of the sampling steel cylinder, a plurality of items can be conveniently detected, the use flexibility of the sampling steel cylinder is improved, split gas inlets of the split steel cylinders are in threaded connection with a gas guide pipe, and an eduction pipe and a split discharge port are mutually connected through a connecting sleeve; therefore, the split steel cylinder is convenient to mount and dismount.

Description

TECHNICAL FIELD

[0001] The utility model relates to sampling device technical field more specifically, relate to a natural gas sampling device. BACKGROUND

[0002] The natural gas sampler is special equipment for collecting natural gas samples, can ensure that the sample is representative and integrity, the common type has portable, online and heat preservation pressure maintaining type etc.

[0003] The natural gas sampling device disclosed by Chinese patent CN209783997U specifically relates to the sampling device field, by the gas delivery head design is tapered plug structure (by connecting piece and cone head are formed), replace traditional screw connection, significantly reduce the leakage risk when sampling.

[0004] However, the existing device still has limitations, when natural gas needs to be analyzed multiple times or used for different projects, in view of the single overall structure of the traditional sampling steel bottle, only one sample bottle can be obtained each time, when multiple uses are needed, only several sample bottles can be collected, and the operation is cumbersome, and therefore the natural gas sampling device is proposed to solve the above problems. UTILITY MODEL CONTENT

[0005] The utility model aims at providing a natural gas sampling device to solve the problems in the above background art:

[0006] In order to achieve the above object, the utility model provides the following technical scheme:

[0007] A natural gas sampling device, including sampling steel bottle, the middle position of sampling steel bottle circular array has a plurality of split steel bottles, and the split steel bottle is fixedly connected on sampling steel bottle, one end of split steel bottle is fixedly connected with split gas inlet, and the other end of split steel bottle is fixedly connected with split outlet, a valve is movably installed on split gas inlet, and a second valve is movably installed on split outlet.

[0008] One side of sampling steel bottle is fixedly connected with gas guide pipe, the other side of sampling steel bottle is fixedly connected with lead-out pipe, split gas inlet is screwed in gas guide pipe, and connecting sleeve is movably installed on lead-out pipe, and connecting sleeve is screwed with split outlet.

[0009] Through the split steel bottle, a plurality of bottle samples can be obtained by sampling steel bottle once, the flexibility of sampling steel bottle is improved, and the split steel bottle is convenient to disassemble and install through the connecting sleeve structure.

[0010] Preferably, one end of the sampling steel bottle is fixedly connected with a sampling port, and the other end of the sampling steel bottle is fixedly connected with an exhaust port.

[0011] Preferably, the gas guide pipe is fixedly connected with a gas guide flange, and a gas guide check valve is movably installed on the gas guide pipe at a position on one side of the gas guide flange.

[0012] By adopting the above technical scheme, the gas guide check valve limits the gas guide pipe, so that the gas can enter the split steel bottle but cannot enter the gas guide pipe from the split steel bottle.

[0013] Preferably, the split gas inlet is fixedly connected with a gas inlet flange, the gas inlet flange is fixedly connected with a gas inlet sealing gasket, and the gas inlet sealing gasket is located at a position between the gas inlet flange and the gas guide flange.

[0014] By adopting the above technical scheme, the gas inlet sealing gasket enhances the sealing property, so that the gas guide pipe and the split gas inlet are sealingly connected and are not prone to gas leakage.

[0015] Preferably, the lead-out pipe is fixedly connected with a lead-out flange, and a lead-out check valve is movably installed on the lead-out pipe at a position on a side of the lead-out flange.

[0016] By adopting the above technical scheme, the lead-out check valve limits the lead-out pipe, so that the gas in the sampling steel bottle can enter the split steel bottle, and the gas in the split steel bottle cannot enter the sampling steel bottle.

[0017] Preferably, one side of the connecting sleeve is fixedly connected with a first ring plate, the first ring plate is located at a position on a side of the lead-out flange, one side of the lead-out flange is fixedly connected with a lead-out sealing gasket, and the lead-out sealing gasket is located at a position between the first ring plate and the lead-out flange.

[0018] By adopting the above technical scheme, the lead-out sealing gasket seals the connecting position of the connecting sleeve and the lead-out pipe.

[0019] Preferably, the other side of the connecting sleeve is fixedly connected with a second ring plate, the inner wall of the second ring plate is provided with threads, the second ring plate is threadedly connected to the split exhaust port, the split exhaust port is fixedly connected with an exhaust flange, the exhaust flange is fixedly connected with an exhaust sealing gasket, and the exhaust sealing gasket is located at a position between the exhaust flange and the second ring plate.

[0020] By adopting the above technical scheme, the exhaust sealing gasket enhances the sealing property between the connecting sleeve and the split exhaust port.

[0021] Compared with the prior art, the utility model has the advantages of:

[0022] 1) The sampling device is provided with a plurality of split cylinders, so that a plurality of gas samples can be obtained by one sampling of the sampling cylinder, which facilitates detection of multiple items and improves the flexibility of the use of the sampling cylinder.

[0023] 2) The split gas inlet of the split cylinder is threadedly connected into the gas guide pipe, and the discharge pipe and the split discharge outlet are connected to each other by the connecting sleeve, so that the split cylinder is convenient to install and disassemble. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0025] Figure 2 It is a schematic diagram of the structure of the sampling cylinder of the utility model;

[0026] Figure 3 It is a schematic diagram of the structure of the split cylinder of the utility model;

[0027] Figure 4 It is a schematic diagram of the structure of the connecting sleeve of the utility model;

[0028] Figure 5 It is a sectional view of the connecting sleeve of the utility model.

[0029] Explanation of reference numerals in the drawing: 1, sampling cylinder; 2, sampling port; 3, gas discharge port; 4, gas guide pipe; 5, gas guide flange; 6, gas guide check valve; 7, discharge pipe; 8, discharge check valve; 9, discharge flange; 10, discharge sealing gasket; 11, split cylinder; 12, split gas inlet; 13, split discharge outlet; 14, gas inlet flange; 15, gas inlet sealing gasket; 16, No. 1 valve; 17, discharge flange; 18, discharge sealing gasket; 19, No. 2 valve; 20, connecting sleeve; 21, No. 1 ring plate; 22, No. 2 ring plate. DETAILED DESCRIPTION

[0030] Example 1, please refer to Figures 1 to 3 A natural gas sampling device, comprising a sampling cylinder 1, a plurality of split cylinders 11 are arranged in a circular array at the middle position of the sampling cylinder 1, the split cylinders 11 are fixedly connected to the sampling cylinder 1, so that the sampling cylinder 1 and the split cylinders 11 are structurally integrated, facilitating transportation, one end of the split cylinders 11 is fixedly connected with a split gas inlet 12, and the other end of the split cylinders 11 is fixedly connected with a split discharge outlet 13, so that the gas in the sampling cylinder 1 can enter the split cylinders 11 through the split gas inlet 12 and then be discharged from the split cylinders 11 through the split discharge outlet 13, a No. 1 valve 16 is movably installed on the split gas inlet 12, and a No. 2 valve 19 is movably installed on the split discharge outlet 13, so that the two ends of the split cylinders 11 are easily sealed.

[0031] One end of the sampling steel bottle 1 is fixedly connected with a sampling port 2, and the other end of the sampling steel bottle 1 is fixedly connected with an exhaust port 3.

[0032] The use steps of the utility model are as follows: the sampling device connects the sampling port 2 of the sampling steel bottle 1 with external pipelines, so that natural gas is conveniently introduced into the sampling steel bottle 1, then the gas in the sampling steel bottle 1 is conveniently introduced into the split steel bottle 11 through the gas guide pipes 4 and the outlet pipes 7 on both sides, the split steel bottle 11 is arranged at the middle position of the sampling steel bottle 1, pressure gauges can be additionally added on each split steel bottle 11, so that the gas pressure in the split steel bottle 11 is monitored, through the structure, when the sampling steel bottle 1 is sampling, the plurality of split steel bottles 11 thereon are conveniently inflated synchronously, so that a plurality of split steel bottles 11 containing natural gas samples are obtained, and in subsequent detection, the plurality of split steel bottles 11 are used for a plurality of projects or a plurality of detections, and the flexibility of the sampling device is improved.

[0033] Embodiment two, please refer to Figures 1 to 5 , the difference from the basis of embodiment 1 is that one side of the sampling steel bottle 1 is fixedly connected with the gas guide pipe 4, the other side of the sampling steel bottle 1 is fixedly connected with the outlet pipe 7, the gas guide pipe 4 and the outlet pipe 7 are arranged at the positions of the two sides of the sampling steel bottle 1 and discharge gas outward, the split gas inlet 12 is screw-connected in the gas guide pipe 4, the connecting sleeve 20 is movably installed on the outlet pipe 7, the connecting sleeve 20 is screw-connected with the split gas outlet 13, and the split gas inlet 12 is conveniently screw-connected into the gas guide pipe 4.

[0034] The gas guide flange 5 is fixedly connected on the gas guide pipe 4, and the gas guide one-way valve 6 is movably installed on the gas guide pipe 4 at the position of one side of the gas guide flange 5, so that external gas cannot enter the sampling steel bottle 1 through the gas guide pipe 4, and external gas cannot enter the sampling steel bottle 1, so that the gas is not pure.

[0035] The gas inlet flange 14 is fixedly connected on the split gas inlet 12, the gas inlet sealing gasket 15 is fixedly connected on the gas inlet flange 14, the gas inlet sealing gasket 15 is located at the position between the gas inlet flange 14 and the gas guide flange 5, the gas inlet sealing gasket 15 enhances the sealing property between the gas guide pipe 4 and the split gas inlet 12, and gas leakage from the connection is avoided.

[0036] The outlet flange 9 is fixedly connected on the outlet pipe 7, the outlet flange 9 is used for increasing the contact area, so that the contact area between the first ring plate 21 and the outlet flange 9 is increased, and the outlet one-way valve 8 is movably installed on the outlet pipe 7 at the position of the side surface of the outlet flange 9, so that external gas cannot enter the sampling steel bottle 1 from the outlet pipe 7.

[0037] The one side of the connecting sleeve 20 is fixedly connected with a first ring plate 21, the first ring plate 21 is located at the side of the lead-out flange 9, the lead-out flange 9 is fixedly connected with a lead-out sealing gasket 10, the sealing performance is enhanced through the lead-out sealing gasket 10, so that the connecting sleeve 20 is sealingly connected with the lead-out pipe 7, and the lead-out sealing gasket 10 is located between the first ring plate 21 and the lead-out flange 9.

[0038] The other side of the connecting sleeve 20 is fixedly connected with a second ring plate 22, the inner wall of the second ring plate 22 is provided with threads, the second ring plate 22 is screw-connected on the split discharge outlet 13, so that the second ring plate 22 is conveniently fixedly connected on the split discharge outlet 13, the split discharge outlet 13 is fixedly connected with a discharge flange 17, the discharge flange 17 is fixedly connected with a discharge sealing gasket 18, the discharge sealing gasket 18 is located between the discharge flange 17 and the second ring plate 22, and is used for enhancing the sealing performance between the connecting sleeve 20 and the split discharge outlet 13.

[0039] The utility model uses steps: when the sampling steel bottle 1 sampling ends, when needs using, first uses the gas in the sampling steel bottle 1, discharges the gas through the exhaust port 3, the sampling steel bottle 1 is also provided with pressure instrument, when the gas in the sampling steel bottle 1 uses to complete, because the gas in the split steel bottle 11 can not enter the sampling steel bottle 1 through the gas guide check valve 6, the lead-out check valve 8 reverse, thereby avoids the gas leakage in the split steel bottle 11, when needing to continue to detect the rest project, the corresponding split steel bottle 11 on the first valve 16, the second valve 19 are closed, so that the both ends of the split steel bottle 11 are closed, then the corresponding connecting sleeve 20 is rotated, so that the second ring plate 22 of the connecting sleeve 20 is rotated on the split discharge outlet 13, the connecting sleeve 20 slides inwards on the lead-out pipe 7, the second ring plate 22 and the discharge flange 17 are separated from each other, the first ring plate 21 and the lead-out flange 9 are separated from each other, the split discharge outlet 13 on the split steel bottle 11 and the connecting sleeve 20 are separated from each other, then the split steel bottle 11 is rotated reversely, so that the split gas inlet 12 is rotated in the gas guide pipe 4, so that the split steel bottle 11 is detached from the sampling steel bottle 1, and the gas in the split steel bottle 11 is conveniently detected.

[0040] The basic principle, main features and advantages of the utility model are shown and described above. Those skilled in the art should understand that the utility model is not limited to the above-mentioned embodiments, and the above-mentioned embodiments and descriptions in the specification are only preferred examples of the utility model and are not intended to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model can also be variously changed and improved, and these changes and improvements all fall within the scope of the utility model claimed. The scope of protection of the utility model is defined by the appended claims and their equivalents.

Claims

1. A natural gas sampling device comprising a sampling cylinder (1), characterized in that: The middle position circular array of the sampling steel bottle (1) has a plurality of split steel bottles (11), and the split steel bottles (11) are fixedly connected to the sampling steel bottle (1), one end of the split steel bottle (11) is fixedly connected with a split gas inlet (12), and the other end of the split steel bottle (11) is fixedly connected with a split gas outlet (13), a first valve (16) is movably installed on the split gas inlet (12), and a second valve (19) is movably installed on the split gas outlet (13). One side of the sampling steel bottle (1) is fixedly connected with a gas guide pipe (4), the other side of the sampling steel bottle (1) is fixedly connected with a gas outlet pipe (7), the split gas inlet (12) is threadedly connected in the gas guide pipe (4), and the gas outlet pipe (7) is movably installed with a connecting sleeve (20), and the connecting sleeve (20) is threadedly connected with the split gas outlet (13).

2. A natural gas sampling device according to claim 1, wherein: One end of the sampling steel bottle (1) is fixedly connected with a sampling port (2), and the other end of the sampling steel bottle (1) is fixedly connected with a gas outlet (3).

3. A natural gas sampling device according to claim 1, wherein: The gas guide pipe (4) is fixedly connected with a gas guide flange (5), and a gas guide check valve (6) is movably installed on one side of the gas guide flange (5) of the gas guide pipe (4).

4. The natural gas sampling device of claim 1, wherein: The split gas inlet (12) is fixedly connected with a gas inlet flange (14), the gas inlet flange (14) is fixedly connected with a gas inlet sealing gasket (15), and the gas inlet sealing gasket (15) is located between the gas inlet flange (14) and the gas guide flange (5).

5. The natural gas sampling device of claim 1, wherein: The gas outlet pipe (7) is fixedly connected with a gas outlet flange (9), and a gas outlet check valve (8) is movably installed on the side of the gas outlet flange (9) of the gas outlet pipe (7).

6. A natural gas sampling device according to claim 1, wherein: One side of the connecting sleeve (20) is fixedly connected with a first ring plate (21), the first ring plate (21) is located on the side of the gas outlet flange (9), one side of the gas outlet flange (9) is fixedly connected with a gas outlet sealing gasket (10), and the gas outlet sealing gasket (10) is located between the first ring plate (21) and the gas outlet flange (9).

7. A natural gas sampling apparatus as claimed in claim 6, wherein: The other side of the connecting sleeve (20) is fixedly connected with a second ring plate (22), the inner wall of the second ring plate (22) is threaded, the second ring plate (22) is threadedly connected to the split gas outlet (13), the split gas outlet (13) is fixedly connected with a gas outlet flange (17), the gas outlet flange (17) is fixedly connected with a gas outlet sealing gasket (18), and the gas outlet sealing gasket (18) is located between the gas outlet flange (17) and the second ring plate (22).

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