Natural gas detection sampling device

Abstract

The utility model belongs to the technical field of natural gas detection, and particularly relates to a natural gas detection sampling device which comprises a protective outer shell assembly and a gas storage inner container assembly, the protective outer shell assembly comprises an outer shell, the gas storage inner container assembly comprises a sealing connecting cover, and the outer shell is connected with the sealing connecting cover through a bolt. A natural gas adsorbent is filled between the outer shell and the sealing connecting cover, one end of the sealing connecting cover is connected with a natural gas sampling tank, the other end of the sealing connecting cover is connected with a natural gas inlet valve, one end of the natural gas sampling tank is communicated with an adjusting pipeline, and a sealing end plate is installed on the adjusting pipeline. The other end of the adjusting pipeline penetrates through the sealing end plate to be communicated with an inner cavity of the outer shell, the sealing end plate presses and covers the inner end face of the outer shell, and a natural gas exhaust hole is formed in the side face of the outer shell. The replacement of the original gas in the natural gas sampling tank can be realized by controlling the opening and closing of the natural gas adsorption valve, and the filled natural gas adsorbent can play a role in adsorbing the natural gas in the replacement process.

Description

Technical Field

[0001] The utility model belongs to the technical field of natural gas detection, and in particular relates to a natural gas detection sampling device. Background Art

[0002] Natural gas sampling and testing helps ensure the quality and safety of natural gas. Manual sampling is the simplest and most common method of natural gas sampling. It only requires the use of a manual sampler to take the sample out of the transmission pipeline. This method is suitable for situations where the pipeline pressure is low, the pipeline diameter is small, and the flow rate is not large. The advantages are that sampling is simple and easy to control. The disadvantages are that the sample may be contaminated during the sampling process, and the sample taken may not represent the average composition of the entire gas flow. The existing manual natural gas sampling device cannot conveniently and thoroughly discharge the original gas in the sampling bottle during sampling, which causes contamination of the sample and affects the accuracy of the test; in addition, when discharging the original gas in the bottle, the direct discharge method will cause natural gas leakage and pollute the surrounding environment. Summary of the invention

[0003] In view of the above problems, the purpose of the utility model is to provide a natural gas detection sampling device to solve the problem that the existing natural gas manual sampling device cannot conveniently and completely discharge the original gas in the sampling bottle during sampling, and easily causes environmental pollution.

[0004] To achieve the above purpose, the utility model adopts the following technical solution: a natural gas detection sampling device, comprising a protective outer shell assembly and a gas storage liner assembly, the protective outer shell assembly comprising an outer shell, the gas storage liner assembly comprising a sealing connection cover, the outer shell is connected to the sealing connection cover by bolts, a natural gas adsorbent is filled between the outer shell and the sealing connection cover, one end of the sealing connection cover is connected to a natural gas sampling tank, the other end of the sealing connection cover is connected to a natural gas inlet valve, one end of the natural gas sampling tank is connected to a regulating pipeline, a sealing end plate is installed on the regulating pipeline, the other end of the regulating pipeline passes through the sealing end plate and is connected to the inner cavity of the outer shell, the sealing end plate is pressed onto the inner end surface of the outer shell, and a natural gas exhaust hole is opened on the side of the outer shell.

[0005] The beneficial effect of the utility model is that the original gas in the natural gas sampling tank can be replaced by controlling the opening and closing of the natural gas adsorption valve, and the filled natural gas adsorbent can play a role in adsorbing natural gas during the replacement process.

[0006] In order to conveniently replace the natural gas adsorbent;

[0007] As a further improvement of the above technical solution: the opening ends of the outer shell and the sealing connection cover are both provided with flange structures.

[0008] The beneficial effect of this improvement is that the outer shell and the sealing connection cover connected by the flange and bolts can be easily disassembled and separated.

[0009] In order to conveniently replace the natural gas adsorbent;

[0010] As a further improvement of the above technical solution: the bottom end of the outer shell is provided with slots for inserting regulating pipelines and sealing end plates.

[0011] The beneficial effect of this improvement is that the regulating pipeline and the sealing end plate can be conveniently taken out from the outer shell.

[0012] In order to ensure the sealing of the cavity composed of the outer shell and the sealing connection cover;

[0013] As a further improvement of the above technical solution: the axis of the sealing end plate is colinear with the axis of the sealing connection cover, and the sealing end plate is a flat half-plate structure.

[0014] The beneficial effect of this improvement is that when the bolts are tightened, the sealing end plate plays a role in closing the slots opened on the outer shell.

[0015] In order to avoid leakage of natural gas adsorbent;

[0016] As a further improvement of the above technical solution: a stainless steel leak-proof filter screen 1 is arranged on the inner side of the natural gas exhaust hole, and the pore size of the stainless steel leak-proof filter screen 1 is not greater than the lower limit of the particle size of the natural gas adsorbent.

[0017] The beneficial effect of this improvement is that the stainless steel leak-proof filter screen can prevent the natural gas adsorbent from leaking out.

[0018] In order to prevent the natural gas adsorbent from entering the natural gas sampling tank;

[0019] As a further improvement of the above technical solution: a second stainless steel leak-proof filter is provided at the port where the regulating pipeline is connected to the sealing end plate, and the pore size of the second stainless steel leak-proof filter is not greater than the lower limit of the particle size of the natural gas adsorbent.

[0020] The beneficial effect of this improvement is that the second stainless steel leak-proof filter screen can prevent the natural gas adsorbent from entering the natural gas sampling tank through the regulating pipeline.

[0021] To facilitate the use of the device;

[0022] As a further improvement of the above technical solution: the placing base and the portable handle are both U-shaped plate structures, and the number of the placing bases is two and they are symmetrically arranged on both sides of the outer shell.

[0023] The beneficial effect of this improvement is that the operator can conveniently extract the mobile device through the portable handle, and the device can be stably placed and used under the support of the placement base.

[0024] The parts not involved in the device are the same as those in the prior art or can be implemented by using the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a cross-sectional structural diagram of the utility model.

[0026] Figure 2 It is a structural schematic diagram of the utility model.

[0027] Figure 3 It is a schematic diagram of the structure of the protective outer shell component in the utility model.

[0028] Figure 4 It is a structural schematic diagram of the gas storage liner assembly in the utility model.

[0029] In the figure: 1. Protective outer shell assembly; 11. Outer shell; 12. Natural gas exhaust hole; 13. Stainless steel leak-proof filter screen 1; 14. Placement base; 15. Portable handle; 2. Gas storage tank assembly; 21. Sealed connection cover; 22. Natural gas inlet valve; 23. Adjustment pipeline; 24. Sealed end plate; 25. Natural gas adsorption valve; 26. Natural gas sampling tank; 27. Stainless steel leak-proof filter screen 2. Implementation

[0030] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention is described in detail below in conjunction with the accompanying drawings. The description in this part is only exemplary and explanatory and should not have any limiting effect on the protection scope of the present invention. Example

[0031] like Figure 1—4 shows: a natural gas detection sampling device, comprising a protective outer shell component 1 and a gas storage liner component 2, wherein the protective outer shell component 1 comprises an outer shell 11, and the gas storage liner component 2 comprises a sealing connection cover 21, wherein the outer shell 11 is connected to the sealing connection cover 21 by bolts, and a natural gas adsorbent is filled between the outer shell 11 and the sealing connection cover 21, and one end of the sealing connection cover 21 is connected to a natural gas sampling tank 26, and the other end of the sealing connection cover 21 is connected to a natural gas intake valve 22, and one end of the natural gas sampling tank 26 is connected to a regulating pipeline 23, and a sealing valve 22 is installed on the regulating pipeline 23. The sealing end plate 24, the other end of the regulating pipeline 23 passes through the sealing end plate 24 and communicates with the inner cavity of the outer shell 11, the sealing end plate 24 is pressed on the inner end surface of the outer shell 11, and the side of the outer shell 11 is provided with a natural gas exhaust hole 12. By controlling the opening and closing of the natural gas adsorption valve 25, the original gas in the natural gas sampling tank 26 can be replaced. The filled natural gas adsorbent can play a role in adsorbing natural gas during the replacement process. The opening ends of the outer shell 11 and the sealing connection cover 21 are both provided with a flange structure. The outer shell 11 and the sealing connection cover 21 connected by the flange and bolts can be conveniently disassembled and separated. The bottom end of the outer shell 11 is provided with slots for inserting the regulating pipeline 23 and the sealing end plate 24. The regulating pipeline 23 and the sealing end plate 24 can be easily taken out from the outer shell 11. The axis of the sealing end plate 24 is in line with the axis of the sealing connection cover 21. The sealing end plate 24 is a flat half-plate structure. Under the fastening of the bolts, the sealing end plate 24 plays the role of closing the slots opened on the outer shell 11. The inner side of the natural gas exhaust hole 12 is provided with a stainless steel leak-proof filter screen 13. The aperture of the stainless steel leak-proof filter screen 13 is not greater than the lower limit of the particle size of the natural gas adsorbent. The stainless steel leak-proof filter screen 13 can prevent the natural gas from being absorbed. The adjuvant leaks out, and a stainless steel leak-proof filter screen 27 is arranged at the port where the regulating pipeline 23 is connected to the sealing end plate 24. The aperture of the stainless steel leak-proof filter screen 27 is not greater than the lower limit of the particle size of the natural gas adsorbent. The stainless steel leak-proof filter screen 27 can prevent the natural gas adsorbent from entering the natural gas sampling tank 26 through the regulating pipeline 23. The placement base 14 and the portable handle 15 are both U-shaped plate structures. The number of the placement base 14 is two and they are symmetrically arranged on both sides of the outer shell 11. The operator can conveniently extract the mobile device through the portable handle 15, and the device can be stably placed and used under the support of the placement base 14.

[0032] The working principle of the present technical solution is as follows: the present device is carried to a suitable place of use by means of the portable handle 15, so that the device as a whole can be used stably under the support of the placement base 14, one end of the natural gas inlet valve 22 is connected to the natural gas sampling port, the natural gas adsorption valve 25 and the natural gas inlet valve 22 are opened, and the natural gas enters the natural gas sampling tank 26, and the natural gas mixed with the original gas in the natural gas sampling tank 26 continues to flow into the interior of the outer shell 11 through the regulating pipeline 23, contacts with the natural gas adsorbent filled in the outer shell 11, and is adsorbed by the natural gas adsorbent, and the original air in the natural gas adsorbent is replaced and discharged, and is discharged into the external environment through the natural gas exhaust hole 12, and continues for several seconds until the gas in the natural gas sampling tank 26 is replaced, and then the natural gas adsorption valve 25 is closed, and the natural gas is stored in the natural gas sampling tank 26.

[0033] It should be noted that, in this article, the terms "comprises", "includes" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or apparatus.

[0034] This article uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only used to help understand the method and core ideas of the present invention. The above is only a preferred implementation of the present invention. It should be pointed out that due to the limitations of textual expression, there are objectively infinite specific structures. For ordinary technicians in this technical field, without departing from the principles of the present invention, they can make several improvements, modifications or changes, and can also combine the above technical features in an appropriate manner; these improvements, modifications, changes or combinations, or the direct application of the inventive concept and technical solution to other occasions without improvement, should be regarded as the protection scope of the present invention.

Claims

1. A natural gas detection sampling device, characterized in that: The invention comprises a protective outer shell component (1) and a gas storage liner component (2), wherein the protective outer shell component (1) comprises an outer shell (11), and the gas storage liner component (2) comprises a sealing connection cover (21), wherein the outer shell (11) is connected to the sealing connection cover (21) by bolts, and a natural gas adsorbent is filled between the outer shell (11) and the sealing connection cover (21), one end of the sealing connection cover (21) is connected to a natural gas sampling tank (26), and the other end of the sealing connection cover (21) is connected to a natural gas intake valve (22), one end of the natural gas sampling tank (26) is connected to a regulating pipeline (23), a sealing end plate (24) is installed on the regulating pipeline (23), and the other end of the regulating pipeline (23) passes through the sealing end plate (24) and is connected to the inner cavity of the outer shell (11), and the sealing end plate (24) is pressed onto the inner end surface of the outer shell (11), and a natural gas exhaust hole (12) is opened on the side of the outer shell (11).

2. A natural gas detection sampling device according to claim 1, characterized in that: The opening ends of the outer shell (11) and the sealing connection cover (21) are both provided with flange structures.

3. A natural gas detection sampling device according to claim 1, characterized in that: The bottom end of the outer shell (11) is provided with slots for inserting a regulating pipeline (23) and a sealing end plate (24).

4. A natural gas detection sampling device according to claim 1, characterized in that: The axis of the sealing end plate (24) is colinear with the axis of the sealing connection cover (21), and the sealing end plate (24) is a flat half-plate structure.

5. A natural gas detection sampling device according to claim 1, characterized in that: A stainless steel anti-leakage filter screen (13) is provided inside the natural gas exhaust hole (12), and the pore size of the stainless steel anti-leakage filter screen (13) is not greater than the lower limit of the particle size of the natural gas adsorbent.

6. A natural gas detection sampling device according to claim 1, characterized in that: A second stainless steel anti-leakage filter screen (27) is provided at the port where the regulating pipeline (23) is connected to the sealing end plate (24), and the pore size of the second stainless steel anti-leakage filter screen (27) is not greater than the lower limit of the particle size of the natural gas adsorbent.

7. A natural gas detection sampling device according to claim 1, characterized in that: Two placement bases (14) are symmetrically arranged on both sides of the outer shell (11), and a portable handle (15) is also arranged on the outer shell (11). Both the placement base (14) and the portable handle (15) are U-shaped plate structures.

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