Natural gas sampling and detecting device

Abstract

The utility model discloses a natural gas sampling and detecting device which comprises a collecting box, a screw rod is spirally connected to the inner side of a screw rod sleeve, a piston plate is rotatably connected to the bottom end of the screw rod, a gas inlet pipe is fixedly connected to the top end of a filter box, and a communicating pipe is fixedly connected to the bottom ends of the collecting box and the filter box. Natural gas to be sampled is guided into the filter box through the gas inlet pipe, particle impurities in natural gas are filtered out through a plurality of different types of filter plates, a hand wheel is rotated to drive a lead screw to rotate, the lead screw ascends and descends in a lead screw sleeve, and a piston plate is synchronously driven to ascend and descend; natural gas can enter the collecting box in a controllable mode, the second valve body is closed, the right channel of the three-way valve is opened, the hand wheel is reversely rotated, the natural gas can enter the intelligent gas analyzer to be detected, and the device is simple and reliable in structure and achieves quantitative and accurate sampling and detection.

Description

Technical Field

[0001] This utility model relates to the field of natural gas sampling and detection technology, and more specifically, to a natural gas sampling and detection device. Background Technology

[0002] Natural gas plays a vital role in energy supply, industrial production, and daily life. Frequent sampling and testing are necessary during the processing, transportation, and use of natural gas to ensure its safety, quality, and compliance with process requirements.

[0003] Current common methods for natural gas sampling and detection have several problems. Traditional sampling and detection equipment may not be able to accurately control the sampling volume during the collection process and is easily affected by external environmental factors such as pressure and temperature. In addition, some existing devices have complex structures, are inconvenient to operate, and their reliability and stability in harsh environments need to be improved.

[0004] No effective solutions have yet been proposed to address the problems in the relevant technologies. Utility Model Content

[0005] In view of the problems in the related technologies, this utility model proposes a natural gas sampling and detection device to overcome the above-mentioned technical problems existing in the existing related technologies.

[0006] Therefore, the specific technical solution adopted by this utility model is as follows:

[0007] A natural gas sampling and detection device includes a sampling box, a lead screw sleeve fixedly connected to the top of the sampling box, a lead screw screw screw threadedly connected to the inner side of the lead screw sleeve, a piston plate rotatably connected to the bottom of the lead screw screw, a filter box fixedly connected to the left end of the sampling box, an air inlet pipe fixedly connected to the top of the filter box, a connecting pipe fixedly connected to the bottom of the sampling box and the filter box, and an intelligent gas analyzer installed on the right end of the sampling box.

[0008] As a further embodiment of this utility model, a sealing ring is installed on the inner side of the piston plate, and the piston plate is slidably connected to the collection box.

[0009] As a further embodiment of this utility model, a handwheel is fixedly connected to the top of the lead screw, and a viewing window is provided on the inner side of the front end of the collection box.

[0010] As a further embodiment of this utility model, the filter box includes a shell, a top cover is installed on the top of the shell by screws, a filter plate is installed on the inner side of the shell, and a support column is fixedly connected to both the bottom inner side of the shell and the filter plate.

[0011] As a further embodiment of this utility model, the bottom ends of the filter box and the intelligent gas analyzer are both fixedly connected with support corner plates, and the bottom end of the collection box is provided with a support upright plate.

[0012] As a further embodiment of this utility model, a first valve body is installed on the intake pipe, and a second valve body is installed on the connecting pipe.

[0013] As a further embodiment of this utility model, a three-way valve is fixedly connected to the bottom of the collection box, and a flexible connecting pipe is installed between the three-way valve and the intelligent gas analyzer.

[0014] The beneficial effects of this utility model are as follows:

[0015] This invention utilizes a collection box, a filter box, an intelligent gas analyzer, an inlet pipe, and a connecting pipe. Natural gas to be sampled is introduced into the filter box through the inlet pipe. Several different types of filter plates remove particulate impurities from the natural gas. Rotating the handwheel drives a lead screw, which rises and falls within a lead screw sleeve, simultaneously raising and lowering a piston plate. Natural gas can enter the collection box in a controlled manner. Closing the second valve and opening the right channel of the three-way valve, along with reversing the handwheel, allows the natural gas to enter the intelligent gas analyzer for testing. This device has a simple and reliable structure and achieves precise quantitative sampling and testing. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the overall structure of a natural gas sampling and detection device according to an embodiment of the present utility model;

[0018] Figure 2 This is an overall front view of a natural gas sampling and detection device according to an embodiment of the present utility model;

[0019] Figure 3 This is a schematic diagram of the overall structure of the collection box of a natural gas sampling and detection device according to an embodiment of the present utility model;

[0020] Figure 4 This is a schematic diagram of the installation structure of the lead screw and lead screw sleeve of a natural gas sampling and detection device according to an embodiment of the present utility model;

[0021] Figure 5 This is a schematic diagram of the installation structure of the filter plate of a natural gas sampling and detection device according to an embodiment of the present utility model.

[0022] In the picture:

[0023] 1. Data collection box; 2. Screw sleeve; 3. Screw; 4. Piston plate; 5. Handwheel; 6. Viewing window; 7. Filter box; 71. Housing; 72. Top cover; 73. Filter plate; 74. Support column; 8. Inlet pipe; 9. First valve body; 10. Connecting pipe; 11. Second valve body; 12. Three-way valve; 13. Flexible connecting pipe; 14. Intelligent gas analyzer; 15. Support angle plate. Detailed Implementation

[0024] To further illustrate the various embodiments, the present invention provides accompanying drawings, which are part of the disclosure of the present invention. These drawings are mainly used to illustrate the embodiments and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, those skilled in the art should be able to understand other possible implementation methods and the advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are usually used to represent similar components.

[0025] According to an embodiment of the present invention, a natural gas sampling and detection device is provided.

[0026] Please refer to the instruction manual appendix. Figure 1-5 A natural gas sampling and detection device according to an embodiment of the present invention includes a sampling box 1. A lead screw sleeve 2 is fixedly connected to the top of the sampling box 1. A lead screw 3 is screwed to the inner side of the lead screw sleeve 2. A piston plate 4 is rotatably connected to the bottom end of the lead screw 3. A filter box 7 is fixedly connected to the left end of the sampling box 1. An air inlet pipe 8 is fixedly connected to the top of the filter box 7. A connecting pipe 10 is fixedly connected to the bottom ends of the sampling box 1 and the filter box 7. An intelligent gas analyzer 14 is installed on the right end of the sampling box 1.

[0027] Natural gas is introduced into the filter box through the intake pipe. Particulate impurities in the natural gas are filtered out by several different types of filter plates. By turning the handwheel, the lead screw is rotated, and the lead screw rises and falls in the lead screw sleeve, which in turn moves the piston plate. Natural gas can enter the collection box in a controlled manner. The second valve body is closed and the right channel of the three-way valve is opened. Turning the handwheel in the opposite direction allows the natural gas to enter the intelligent gas analyzer for detection. This device has a simple and reliable structure and can achieve quantitative and accurate sampling and detection.

[0028] In one embodiment, please refer to the appendix to the specification. Figure 1-5 As a further embodiment of this utility model, a sealing ring is installed on the inner side of the edge of the piston plate 4, and the piston plate 4 is slidably connected to the collection box 1.

[0029] The lifting and lowering of piston plate 4 drives the extraction and discharge of natural gas.

[0030] In one embodiment, please refer to the appendix to the specification. Figure 1-5 As a further embodiment of this utility model, a handwheel 5 is fixedly connected to the top of the lead screw 3, and a viewing window 6 is provided on the inner side of the front end of the collection box 1.

[0031] The position of the piston plate 4 can be observed through the viewing window 6, thereby determining the amount of natural gas collected.

[0032] In one embodiment, please refer to the appendix to the specification. Figure 1-5 As a further embodiment of the present invention, the filter box 7 includes a housing 71, a top cover 72 is installed on the top of the housing 71 by screws, a filter plate 73 is installed on the inner side of the housing 71, and a support column 74 is fixedly connected to the bottom inner side of the housing 71 and the filter plate 73.

[0033] This makes the filter plate 73 easy to install and remove.

[0034] In one embodiment, please refer to the appendix to the specification. Figure 1-5 As a further embodiment of this utility model, the bottom ends of the filter box 7 and the intelligent gas analyzer 14 are both fixedly connected with support corner plates 15, and the bottom end of the collection box 1 is provided with a support upright plate.

[0035] The support angle plate 15 facilitates the placement of the device.

[0036] In one embodiment, please refer to the appendix to the specification. Figure 1-5 As a further embodiment of this utility model, a first valve body 9 is installed on the air intake pipe 8, and a second valve body 11 is installed on the connecting pipe 10.

[0037] This controls the opening and closing of the intake pipe 8 and the connection and disconnection of the connecting pipe 10.

[0038] In one embodiment, please refer to the appendix to the specification. Figure 1-5 As a further embodiment of this utility model, a three-way valve 12 is fixedly connected to the bottom of the collection box 1, and a flexible connecting pipe 13 is installed between the three-way valve 12 and the intelligent gas analyzer 14.

[0039] The hose 13 can be used to connect to the intelligent gas analyzer 14, or to a portable combustible gas detector, gas chromatograph, etc., for more comprehensive testing.

[0040] When using this device, to sample natural gas, the operator inserts the sampling head into the natural gas pipeline or sampling port. Depending on the required sampling volume, the operator controls the rise and fall of the piston plate by rotating the handwheel to drive the lead screw, thus precisely controlling the sampling volume. The natural gas to be sampled is introduced into the filter box through the inlet pipe. Particulate impurities in the natural gas are filtered out by several different types of filter plates. Rotating the handwheel drives the lead screw to rotate, causing it to rise and fall within the lead screw sleeve, simultaneously raising and lowering the piston plate. Natural gas can then enter the sampling box in a controlled manner. Closing the second valve body and opening the right channel of the three-way valve, and then rotating the handwheel in the opposite direction, allows the natural gas to enter the intelligent gas analyzer for testing. This device has a simple and reliable structure and achieves precise quantitative sampling and testing.

[0041] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A natural gas sampling detection device comprising a collection tank (1), characterized in that: The top end of the collection box (1) is fixedly connected with a lead screw sleeve (2), the inner side of the lead screw sleeve (2) is spirally connected with a lead screw (3), the bottom end of the lead screw (3) is rotatably connected with a piston plate (4), the left end of the collection box (1) is fixedly connected with a filter box (7), the top end of the filter box (7) is fixedly connected with an air inlet pipe (8), the bottom end of the collection box (1) and the filter box (7) is fixedly connected with a communication pipe (10), and the right end of the collection box (1) is provided with an intelligent gas analyzer (14).

2. The natural gas sampling detection device of claim 1, wherein: The edge of the piston plate (4) is internally provided with a sealing ring, and the piston plate (4) is slidably connected with the collection box (1).

3. The natural gas sampling detection device of claim 1, wherein: The top end of the lead screw (3) is fixedly connected with a hand wheel (5), and the front end of the collection box (1) is internally provided with a visual window (6).

4. The natural gas sampling detection device of claim 1, wherein: The filter box (7) comprises a shell (71), a top cover (72) is mounted on the top end of the shell (71) through screws, a filter plate (73) is mounted on the inner side of the shell (71), and support columns (74) are fixedly connected to the inner bottom end of the shell (71) and the filter plate (73).

5. The natural gas sampling detection device of claim 1, wherein: The bottom end of the filter box (7) and the intelligent gas analyzer (14) are fixedly connected with support angle plates (15), and the bottom end of the collection box (1) is provided with a support vertical plate.

6. The natural gas sampling detection device of claim 1, wherein: A first valve body (9) is mounted on the air inlet pipe (8), and a second valve body (11) is mounted on the communication pipe (10).

7. The natural gas sampling detection device of claim 1, wherein: The bottom end of the collection box (1) is fixedly connected with a three-way valve (12), and a soft connecting pipe (13) is mounted between the three-way valve (12) and the intelligent gas analyzer (14).

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