Natural gas sampling and detecting device convenient to sample

Abstract

The utility model relates to the technical field of natural gas collection, and particularly discloses a natural gas sampling detection device convenient for sampling, which comprises a conveying pipeline, a joint body communicated with the conveying pipeline is arranged on the conveying pipeline, an external thread is arranged on the outer wall of the joint body, and a transition seat is in threaded connection with the external thread. An air inlet of a conical structure is formed in the top wall of the transition seat, a cavity is formed in the top face of the air inlet in an extending mode, a sealing block which is matched with the air inlet and can move up and down is arranged in the air inlet in a sleeved mode, and a moving rod is fixedly arranged on the top face of the sealing block. A collecting opening communicated with the cavity is formed in the top face, corresponding to the moving rod, of the transition base, and the moving rod penetrates through the collecting opening and extends to the position above the top face of the transition base. Natural gas in a conveying pipeline can be collected conveniently and rapidly, and therefore the use efficiency of the device is improved.

Description

Technical Field

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

[0002] The main use of natural gas is as fuel. It is a clean, environmentally friendly, high-quality energy source that contains almost no sulfur, dust, or other harmful substances. When burned, it produces less carbon dioxide than other fossil fuels, resulting in a lower greenhouse effect. Therefore, it can fundamentally improve environmental quality.

[0003] Natural gas needs to be transported through pipelines during production and use. In order to detect the purity of natural gas during pipeline transportation, it is necessary to sample the natural gas inside the pipeline. Traditional sampling devices can usually only sample at the ports where the pipeline is connected, which affects the fuel supply and cannot effectively sample the natural gas at the end face of the pipeline, affecting the efficiency of the device. Utility Model Content

[0004] The technical problem to be solved by the utility model is that effective sampling cannot be performed on the natural gas transmission pipeline, resulting in a reduction in the use efficiency of the device.

[0005] In order to solve the above problems, the technical solution of the utility model is as follows: a natural gas sampling and detection device that is convenient for sampling, comprising a delivery pipeline, a joint body that is provided on the delivery pipeline and is connected thereto, and an external thread is provided on the outer wall of the joint body, a transition seat is threadedly connected to the external thread, a conical air inlet hole is provided on the top wall of the transition seat, and a cavity is extended on the top surface of the air inlet hole, and a sealing block that is compatible with the air inlet hole and can move up and down is sleeved in the air inlet hole;

[0006] A moving rod is fixed on the top surface of the sealing block, and a collecting port that is connected to the cavity is opened on the top surface of the transition seat corresponding to the moving rod, and the moving rod extends through the collecting port to above the top surface of the transition seat, and pressure plates are fixed at both ends of the moving rod in the cavity, and support seats are fixed in the cavity above the sealing block and at corresponding positions of the pressure plates, a compression spring is fixed between the pressure plate and the support seat, and a detachable collecting tube is provided on the top surface of the transition seat and a lifting rod for pushing the moving rod is provided in the collecting tube.

[0007] Furthermore, a threaded cylinder capable of sleeve-fitting the movable rod is fixedly provided on the top surface of the transition seat, a collecting cylinder is threadedly connected to the threaded cylinder, a sealing plate is fixedly provided in the collecting cylinder and a storage chamber is formed above the sealing plate, an air inlet is opened on the sealing plate and a blocking block adapted to the air inlet is provided on the air inlet;

[0008] A lifting rod is fixed on the top surface of the block, and an internal threaded hole is opened on the top surface of the collection tube corresponding to the lifting rod. The lifting rod extends through the internal threaded hole to above the top surface of the collection tube, and an external thread matching the internal threaded hole is also opened on the outer wall of the lifting rod.

[0009] Furthermore, the air inlet and the blocking block are respectively conical structures used in conjunction with each other.

[0010] Furthermore, a detachable dust cap is sleeved on the outer wall of the threaded barrel.

[0011] Furthermore, a mounting groove is provided at the contact point between the inner wall of the transition block and the top surface of the joint body, and a sealing gasket is nested in the mounting groove.

[0012] The advantages of this utility model compared with the existing technology are:

[0013] 1. Through the cooperation of the transition seat, air inlet, sealing block, cavity, moving rod, pressure plate, support seat and compression spring, and under the action of the collection tube, sealing plate, storage chamber and lifting rod, when the collection tube is threadedly connected, it can be moved downward, and at the same time drive the lifting rod to move downward, and then push the moving rod to move downward, so that the sealing block moves downward and separates from the air inlet, so that the natural gas in the transmission pipeline flows into the storage chamber for collection;

[0014] 2. With the cooperation of the internal threaded hole on the collection tube and the external thread on the lifting rod, and with the action of the block and the air inlet, after the natural gas in the storage chamber is collected, the lifting rod can be moved upward with the cooperation of the external thread and the internal thread, so that the block and the air inlet cooperate to close the storage chamber. At the same time, the downward abutting force of the moving rod disappears, and under the action of the compression spring, the sealing block and the air inlet are driven to cooperate to close the air inlet. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is the external structure diagram of the utility model.

[0016] Figure 2 It is the internal structure diagram of the utility model.

[0017] Figure 3 This utility model Figure 2 Enlarged view of point A in the middle.

[0018] Figure 4 This utility model Figure 3 Enlarged view of point B in the middle.

[0019] Figure 5 This is a disassembled structural diagram of the collection tube and the transition seat in the utility model.

[0020] As shown in the figure: 1. Conveying pipe; 2. Connector body; 3. External thread; 4. Transition seat; 5. Air inlet; 6. Sealing block; 7. Cavity; 8. Moving rod; 9. Pressure plate; 10. Support seat; 11. Compression spring; 12. Dust cap; 13. Threaded barrel; 14. Collection barrel; 15. Sealing plate; 16. Storage chamber; 17. Air inlet; 18. Lifting rod; 19. Blocking block; 20. Mounting slot; 21. Sealing gasket. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0022] like Figures 1 to 3 As shown, a natural gas sampling and detection device for facilitating sampling comprises a delivery pipeline 1, a joint body 2 intersecting the delivery pipeline 1 is provided on the delivery pipeline 1, an external thread 3 is provided on the outer wall of the joint body 2, a transition seat 4 is threadedly connected to the external thread 3, a conical air inlet 5 is provided on the top wall of the transition seat 4, and a cavity 7 is extended from the top surface of the air inlet 5, a sealing block 6 adapted to be movable up and down is sleeved within the air inlet 5, and the air inlet 5 is closed or opened during the adjustment process of the up and down movement of the sealing block 6;

[0023] A moving rod 8 is fixed on the top surface of the sealing block 6, and a collecting port that is connected to the cavity 7 is opened on the top surface of the transition seat 4 corresponding to the moving rod 8, and the moving rod 8 extends through this collecting port to above the top surface of the transition seat 4, and pressure plates 9 are fixed at both ends of the moving rod 8 in the cavity 7. Support seats 10 are fixed in the cavity 7 above the sealing block 6 and at corresponding positions of the pressure plates 9. A compression spring 11 is fixed between the pressure plate 9 and the support seat 10. The action of the compression spring 11 can ensure the stability of the sealing block 6 during the up and down movement. A detachable collecting tube 14 is provided on the top surface of the transition seat 4, and a lifting rod 18 for pushing the moving rod 8 is provided in this collecting tube 14.

[0024] like Figure 4As shown, a threaded barrel 13 capable of being sleeved with the moving rod 8 is fixedly provided on the top surface of the transition seat 4, and a collection barrel 14 is threadedly connected to the threaded barrel 13. A sealing plate 15 is fixedly provided in the collection barrel 14, and a storage chamber 16 is formed above the sealing plate 15. The natural gas collected by it is effectively stored through the storage chamber 16. An air inlet 17 is opened on the sealing plate 15, and a blocking block 19 adapted to the air inlet 17 is provided on the air inlet 17. The air inlet 17 and the blocking block 19 are respectively tapered structures used in conjunction with each other. The tapered structure can ensure the tightness of the blocking block 19 and the air inlet 17 after being matched.

[0025] A lifting rod 18 is fixed on the top surface of the blocking block 19, and an internal threaded hole is provided on the top surface of the collecting tube 14 corresponding to the lifting rod 18. The lifting rod 18 extends through the internal threaded hole to above the top surface of the collecting tube 14, and an external thread that matches the internal threaded hole is also provided on the outer wall of the lifting rod 18. Under the action of the external thread and the internal thread, the lifting rod 18 is effectively adjusted up and down, and the blocking block 19 is driven to move up and down at the same time.

[0026] like Figure 5 As shown, after the collection tube 14 is removed, a detachable dust cap 12 is also provided on the outer wall of the threaded tube 13, so as to ensure the cleanliness of the surface of the threaded tube 13.

[0027] like Figure 3 As shown, a mounting groove 20 is provided at the contact point between the inner wall of the transition seat 4 and the top surface of the joint body 2 and a sealing gasket 21 is nested in the mounting groove 20 . The sealing gasket 21 can ensure air leakage between the transition seat 4 and the joint body 2 .

[0028] In specific use, the lifting rod 18 is first moved downward and adjusted so that the bottom end of the blocking block 19 is parallel to the bottom end of the collecting tube 14, so that the air inlet 17 is in an open state. Then the collecting tube 14 is put on the threaded tube 13, and the collecting tube 14 is rotated to move it downward, thereby driving the blocking block 19 to move downward. Then, the moving rod 8 is pushed downward, thereby driving the sealing block 6 to move downward, so that the air inlet 5 is in an open state. At this time, the natural gas in the transmission pipeline 1 will flow into the storage chamber 16 through the air inlet 5, the cavity 7, the collecting port and the air inlet 17, and the natural gas is collected.

[0029] After the collection is completed, first rotate the lifting rod 18 to move the lifting rod 18 upward for adjustment, and then drive the blocking block 19 and the air inlet 17 to cooperate to close the storage chamber 16. At the same time, the downward abutment force of the moving rod 8 disappears. Under the action of the compression spring 11, the sealing block 6 and the air inlet hole 5 are driven to cooperate to close the air inlet hole. Then, the collection tube 14 is removed from the threaded tube 13, and the dust cap 12 is put on the threaded tube 13 for protection, thereby improving the use efficiency of the device.

[0030] The above description of the present invention and its embodiments is non-limiting. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. In short, if a person skilled in the art is inspired by the above, and does not deviate from the purpose of the present invention, without inventive design, a structure and embodiment similar to the technical solution should fall within the scope of protection of the present invention.

Claims

1. A natural gas sampling and detection device for facilitating sampling, comprising a delivery pipeline (1), a connector body (2) interpenetrating the delivery pipeline (1) and an external thread (3) formed on the outer wall of the connector body (2), characterized in that: A transition seat (4) is threadedly connected to the external thread (3); a conical air inlet hole (5) is provided on the top wall of the transition seat (4); a cavity (7) is extended on the top surface of the air inlet hole (5); and a sealing block (6) adapted to the air inlet hole (5) and movable up and down is sleeved in the air inlet hole (5); A moving rod (8) is fixed on the top surface of the sealing block (6), a collecting port communicating with the cavity (7) is opened on the top surface of the transition seat (4) corresponding to the moving rod (8), and the moving rod (8) extends through the collecting port to above the top surface of the transition seat (4), a pressing plate (9) is fixed at both ends of the moving rod (8) in the cavity (7), a supporting seat (10) is fixed in the cavity (7) above the sealing block (6) and at the corresponding position of the pressing plate (9), a compression spring (11) is fixed between the pressing plate (9) and the supporting seat (10), a detachable collecting tube (14) is provided on the top surface of the transition seat (4), and a lifting rod (18) for pushing the moving rod (8) is provided in the collecting tube (14).

2. A natural gas sampling and detection device for facilitating sampling according to claim 1, characterized in that: A threaded cylinder (13) capable of being sleeved with the moving rod (8) is fixedly provided on the top surface of the transition seat (4), a collecting cylinder (14) is threadedly connected to the threaded cylinder (13), a sealing plate (15) is fixedly provided in the collecting cylinder (14), and a storage chamber (16) is formed above the sealing plate (15), an air inlet (17) is opened on the sealing plate (15), and a blocking block (19) adapted to the air inlet (17) is provided on the air inlet (17); A lifting rod (18) is fixedly provided on the top surface of the blocking block (19), and an internal threaded hole is provided on the top surface of the collecting tube (14) corresponding to the lifting rod (18). The lifting rod (18) passes through the internal threaded hole and extends to above the top surface of the collecting tube (14). An external thread that matches the internal threaded hole is also provided on the outer wall of the lifting rod (18).

3. The natural gas sampling and detection device for facilitating sampling according to claim 2, characterized in that: The air inlet (17) and the blocking block (19) are respectively conical structures used in conjunction with each other.

4. The natural gas sampling and detection device for facilitating sampling according to claim 2, characterized in that: A detachable dust cap (12) is also sleeved on the outer wall of the threaded barrel (13).

5. A natural gas sampling and detection device for facilitating sampling according to any one of claims 1 to 4, characterized in that: A mounting groove (20) is also provided at the contact point between the inner wall of the transition block (4) and the top surface of the joint body (2), and a sealing gasket (21) is nested in the mounting groove (20).

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