CN213236985U

CN213236985U - Natural gas pipeline with natural gas sampling device

Info

Publication number: CN213236985U
Application number: CN202021489983.7U
Authority: CN
Inventors: 吴葵
Original assignee: Xin'ao Zhoushan Lng Co ltd
Current assignee: Xin'ao Zhoushan Lng Co ltd
Priority date: 2020-07-25
Filing date: 2020-07-25
Publication date: 2021-05-18
Anticipated expiration: 2030-07-25

Abstract

The utility model discloses a natural gas line with natural gas sampling device relates to natural gas sampling technical field, and it includes the pipeline main part, pipeline main part upper end fixedly connected with casing, be equipped with the gas collection mechanism that is used for collecting the natural gas in the casing, gas collection mechanism includes the gas collection tank of fixed connection in pipeline main part upper end, pipeline main part upper end intercommunication is equipped with the intake pipe, intake pipe upper end and gas collection tank lateral wall intercommunication, be equipped with in the gas collection tank and be used for gas outgoing's exhaust mechanism. The utility model is simple in operation convenient, reduced the work load that the workman sampled, improved work efficiency, avoid the internal element to receive the wind and shine, when leading to the component ageing, avoid artificially destroying the component to improve device's practicality still guarantees in addition that next sample advances trachea and the sampling pipe in no natural gas remains, thereby ensures the accuracy of next sample result.

Description

Natural gas pipeline with natural gas sampling device

Technical Field

The utility model relates to a natural gas sampling technical field especially relates to natural gas line with natural gas sampling device.

Background

Natural gas refers to all gases naturally occurring in nature, including gases formed by various natural processes in the air space, water space and rock space (including oil field gas, gas field gas, mud volcanic gas, coal bed gas, biogenetic gas and the like). The definition of "natural gas" which has been commonly used for a long time is a narrow definition from the energy perspective, and refers to a mixture of hydrocarbon and non-hydrocarbon gases which are naturally deposited in a stratum, and scientific researchers need to regularly sample and test the gases in a natural gas pipeline to ensure the purity of the gases in the pipeline.

When the existing natural gas pipeline with the natural gas sampling device collects the natural gas in the pipeline, air is easily mixed, the detection effect is not accurate, a small amount of natural gas still exists in the device after the natural gas sampling is finished, the result of the next sampling can be influenced by the natural gas, and therefore the problem needs to be solved by designing the natural gas pipeline with the natural gas sampling device.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art, and providing a natural gas pipeline with a natural gas sampling device.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the natural gas pipeline with the natural gas sampling device comprises a pipeline main body, wherein a shell is fixedly connected to the upper end of the pipeline main body, a gas collecting mechanism used for collecting natural gas is arranged in the shell, the gas collecting mechanism comprises a gas collecting tank fixedly connected to the upper end of the pipeline main body, a gas inlet pipe is communicated with the upper end of the pipeline main body, the upper end of the gas inlet pipe is communicated with the side wall of the gas collecting tank, and an exhaust mechanism used for exhausting gas is arranged in the gas collecting tank.

Preferably, the exhaust mechanism includes the piston that sets up in the gas collecting tank, the piston is kept away from the intake pipe and is removed fixedly connected with pull rod, the one end that the piston was kept away from to the pull rod runs through the gas collecting tank lateral wall, the gas collecting tank lateral wall intercommunication is equipped with the sampling tube.

Preferably, an air inlet valve is arranged on the air inlet pipe, and a filter screen is arranged at the lower end of the air inlet pipe.

Preferably, the sampling tube upper end is equipped with out the gas valve, the sampling tube upper end is equipped with gas flowmeter.

Preferably, the sampling pipe is communicated with the upper end of the air inlet pipe and is provided with a vent pipe, and the vent pipes are provided with one-way valves.

Preferably, a first box door is arranged at the upper end of the shell, and a second box door is arranged on the side wall of the shell.

The utility model discloses in, following beneficial effect has:

1. the device is provided with a gas collecting mechanism and an exhaust mechanism, an air inlet valve is opened, a pull rod is pulled, a piston moves rightwards, natural gas enters a gas collecting tank, when the piston reaches the rightmost side, the air inlet valve is closed, an air outlet valve is opened, a natural gas sample is collected from the end of a sampling pipe, the pull rod is pushed leftwards, the piston moves leftwards, when the piston reaches the rightmost side, gas in the gas collecting tank is completely discharged, the air outlet valve is closed, the sampling work of the natural gas can be completed, the operation is simple and convenient, the sampling workload of workers is reduced, and the working efficiency is improved;

2. the device is provided with the shell, the sampling element can be accommodated in the shell, and the element is prevented from being damaged artificially while the aging of the element caused by the exposure of the internal element to wind and sun is avoided, so that the practicability of the device is improved;

3. this device has set up the check valve, opens the check valve on two blow-down pipes, can be with a small amount of natural gas discharge, guarantees next sample advance trachea and the interior no residual natural gas of sampling pipe to ensure the accuracy of next sample result.

Drawings

Fig. 1 is a schematic structural diagram of a natural gas pipeline with a natural gas sampling device according to the present invention;

fig. 2 is a top view of the natural gas pipeline with the natural gas sampling device provided by the present invention.

In the figure: the gas sampling device comprises a pipeline main body 1, a shell 2, a gas inlet pipe 3, a filter screen 4, a gas inlet valve 5, an emptying pipe 6, a check valve 7, a gas outlet valve 8, a gas flowmeter 9, a sampling pipe 10, a gas collection tank 11, a piston 12, a pull rod 13, a first box door 14 and a second box door 15.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Referring to fig. 1-2, the natural gas pipeline with the natural gas sampling device comprises a pipeline main body 1, wherein a shell 2 is fixedly connected to the upper end of the pipeline main body 1, a first box door 14 is arranged at the upper end of the shell 2, a second box door 15 is arranged on the side wall of the shell 2, and the second box door 15 is arranged right opposite to a pull rod 13.

Be equipped with the gas collection mechanism that is used for collecting the natural gas in casing 2, gas collection mechanism includes gas collection tank 11 of fixed connection in 1 upper end of pipeline main part, 1 upper end intercommunication of pipeline main part is equipped with

intake pipe

3, 3 upper ends of intake pipe and the 11 lateral walls of gas collection tank intercommunication, be equipped with air inlet valve 5 on the

intake pipe

3, 3 lower extremes of intake pipe are equipped with filter screen 4, in the pipeline transportation process, small natural gas impurity can gather gradually, and natural gas steps up again and indulges passive heating, methane, the ethane lamp natural gas is sat minimum emergence schizolysis under the high temperature effect, and become solid state polymer under certain condition, natural gas solid state impurity has been formed, filter screen 4 is made for corrosion-resistant metal material, can block impurity and get into gas collection tank 11 hiccup, influence the.

Be equipped with in the gas collecting tank 11 and be used for the exhaust mechanism with gas discharge, exhaust mechanism is including setting up piston 12 in gas collecting tank 11, 3 removal fixedly connected with pull rods 13 of intake pipe are kept away from to piston 12, the one end that piston 12 was kept away from to pull rods 13 runs through gas collecting tank 11 lateral walls, gas collecting tank 11 lateral walls intercommunication is equipped with sampling tube 10, sampling tube 10 upper end is equipped with out gas valve 8, sampling tube 10 upper end is equipped with gas flowmeter 9 for the gas volume that the record flows through.

The utility model discloses in, sampling tube 10 is equipped with blow-down pipe 6 with 3 upper ends of intake pipe intercommunication, all is equipped with check valve 7 on two blow-down pipes 6 for outside air can't get into in the gas collecting tank 11.

In the initial state, the piston 12 is located at the leftmost side of the gas collection tank 11, and the first box door 14 and the second box door 15 are closed.

When in use, the first box door 14 and the second box door 15 are opened, the air inlet valve 5 is opened, the pull rod 13 is pulled, the piston 12 moves rightwards, natural gas enters the gas collecting tank 11, when the piston 12 reaches the rightmost side, the air inlet valve 5 is closed, the air outlet valve 8 is opened, the natural gas sample is collected from the end of the sampling pipe 10, the pull rod 13 is pushed leftwards, the piston 12 moves leftwards, when the piston 12 reaches the rightmost side, the gas in the gas collecting tank 11 is completely discharged, the gas outlet valve 8 is closed, the sampling of the natural gas can be completed, and it should be noted that a small amount of natural gas still exists in the gas inlet pipe 3 and the sampling pipe 10, but the gas is not discharged to affect the next sampling result, therefore, a small amount of natural gas in the gas inlet pipe 3 and the sampling pipe 10 is discharged, only the one-way valves 7 on the two emptying pipes 6 are needed to be opened, a small amount of natural gas can be discharged, and no residual natural gas is left in the gas inlet pipe 3 and the sampling pipe 10 before next sampling.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. Natural gas line with natural gas sampling device, including pipeline main part (1), its characterized in that, pipeline main part (1) upper end fixedly connected with casing (2), be equipped with the gas collection mechanism that is used for collecting the natural gas in casing (2), gas collection mechanism includes gas collection tank (11) of fixed connection in pipeline main part (1) upper end, pipeline main part (1) upper end intercommunication is equipped with intake pipe (3), intake pipe (3) upper end and gas collection tank (11) lateral wall intercommunication, be equipped with in gas collection tank (11) and be used for the exhaust mechanism with gas outgoing.

2. The natural gas pipeline with the natural gas sampling device according to claim 1, wherein the exhaust mechanism comprises a piston (12) arranged in the gas collection tank (11), the piston (12) is far away from the gas inlet pipe (3) and is fixedly connected with a pull rod (13) in a movable manner, one end of the pull rod (13) far away from the piston (12) penetrates through the side wall of the gas collection tank (11), and the side wall of the gas collection tank (11) is communicated with a sampling pipe (10).

3. The natural gas pipeline with the natural gas sampling device according to claim 1, characterized in that an inlet valve (5) is arranged on the inlet pipe (3), and a filter screen (4) is arranged at the lower end of the inlet pipe (3).

4. The natural gas pipeline with natural gas sampling device of claim 2, characterized in that, the upper end of the sampling tube (10) is provided with a gas outlet valve (8), and the upper end of the sampling tube (10) is provided with a gas flowmeter (9).

5. The natural gas pipeline with the natural gas sampling device according to claim 2, characterized in that the sampling pipe (10) is communicated with the upper end of the gas inlet pipe (3) and is provided with a vent pipe (6), and the two vent pipes (6) are provided with one-way valves (7).

6. The natural gas pipeline with the natural gas sampling device according to claim 1, characterized in that a first box door (14) is arranged at the upper end of the housing (2), and a second box door (15) is arranged on the side wall of the housing (2).