Liquefied natural gas sampler

Abstract

The utility model discloses a liquefied natural gas sampler, and particularly relates to the technical field of natural gas sampling equipment, which comprises a sampler body, a rotating rod penetrates through the top of the sampler body, a piston plate is arranged at one end of the rotating rod, the piston plate is in sliding connection with the sampler body, and a connecting plate is arranged at the top of the rotating rod. The bottom of the sampler body is in threaded connection with a sampling head, a protection mechanism is arranged on the outer side of the sampler body, the protection mechanism comprises a protection sleeve connected to the outer portion of the sampler body in a sleeving mode, a protection groove is formed in the protection sleeve, and a protection soft cushion is arranged in the protection groove. According to the sampling device, the sampling head can be protected, the sampling head is prevented from being polluted and damaged when not used, and the outside of the sampling device body can be protected.

Description

Technical Field

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

[0002] Liquefied natural gas (LNG) is widely recognized as the cleanest fossil fuel on Earth. LNG combustion produces very little air pollution and releases a large amount of heat, making it a relatively advanced energy source. During the natural gas production process, a sampler is needed to take samples and test the natural gas to ensure its quality. Therefore, a LNG sampler is required.

[0003] Most existing natural gas sampling equipment is complex in structure and inconvenient to carry out, which is not conducive to the needs of staff to carry out work at any time.

[0004] A search revealed that Chinese patent CN214173889U discloses a liquefied natural gas sampler. This structure uses spur gear meshing to drive a sliding plate to move upward. The movement of the sliding plate simultaneously drives the piston assembly and sealing assembly to move in the same direction. As the piston assembly moves, liquefied natural gas enters the storage tank from the lower inlet of the inlet chamber, making the device convenient for sampling.

[0005] However, the above-mentioned device will have the following problems during use: the structure takes samples through a sampler. After the sampling is completed, the sampling head is exposed to the outside, which is prone to pollution and wear, affecting the device's ability to take samples of natural gas next time. Utility Model Content

[0006] In order to overcome the above-mentioned defects of the prior art, the present invention provides a liquefied natural gas sampler to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A liquefied natural gas (LNG) sampler includes a sampler body. A rotating rod is threaded through the top of the sampler body, and a piston plate is attached to one end of the rotating rod. The piston plate is slidably connected to the sampler body. A connecting plate is attached to the top of the rotating rod. A sampling head is threadedly connected to the bottom of the sampler body. A protective mechanism is provided on the outer side of the sampler body. The protective mechanism includes a protective sleeve fitted over the sampler body. A protective groove is formed inside the protective sleeve, and a protective pad is placed inside the protective groove. Two first springs are provided on the inner wall of the protective sleeve, and an arc-shaped plate is attached to one end of each of the two first springs. Two fixing rods are formed on the surface of the protective sleeve. A protective ring is threadedly connected to the outside of the sampler body. Two fixing holes are formed on the surface of the protective ring, and the fixing holes are connected to the fixing rods. A fixing ring is provided on the external thread of the fixing rod. This technical solution facilitates the protection of one end of the sampling head.

[0009] As a further description of the above technical solution: two second springs are provided at the bottom of the connecting plate, and a damper is provided at one end of each second spring. A limit rod is provided at one end of each damper. A fixing plate is fixedly provided at the top of the sampler body. Two connecting holes are opened on the surface of the fixing plate. The connecting holes are connected to the limit rods. By adopting the above technical solution, it is convenient to limit the connection of the connecting plate.

[0010] The technical effects and advantages of this utility model are as follows:

[0011] 1. By setting up a protective mechanism, compared with the existing technology, a protective sleeve is placed on the outside of the sampler body, so that the sampling head is connected to the protective groove. The protective pad inside the protective groove protects the sampling head. The first spring inside drives the arc plate to clamp one side of the sampling head, which can enhance the connection effect of the device and improve the protection of the sampling head. Then, the fixing rod at the top of the protective sleeve is connected to the fixing hole on the surface of the protective ring, and the fixing ring limits the connection of the fixing post, so that the protective sleeve can better protect the sampler body and improve the protection of the device.

[0012] 2. By using a connecting plate, a second spring, a limiting rod, and a connecting hole in combination, compared with the prior art, when the sampler body is not in use, the second spring at the bottom of the connecting plate drives the limiting rod to connect with the connecting hole. This prevents the connecting rod from accidentally hitting the connecting plate while carrying the device, causing the rotating rod to rotate and thus affecting the device's performance. Then, the connecting plate drives the bottom limiting rod to be removed from the connecting hole, facilitating the rotation of the rotating rod without affecting the device's performance. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0014] Figure 2 This is a schematic diagram of the protective sleeve structure of this utility model.

[0015] Figure 3 This is a schematic diagram of the first spring structure of this utility model.

[0016] Figure 4 This is a schematic diagram of the state structure of this utility model.

[0017] Figure 5 This is a schematic diagram of the rotating rod structure of this utility model.

[0018] The attached figures are labeled as follows: 1. Sampler body; 2. Rotating rod; 3. Connecting plate; 4. Sampling head; 5. Protective sleeve; 6. Protective groove; 7. Protective pad; 8. First spring; 9. Arc plate; 10. Fixing rod; 11. Protective ring; 12. Fixing ring; 13. Second spring; 14. Limiting rod; 15. Connecting hole; 16. Fixing plate. Detailed Implementation

[0019] The technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0020] The embodiments disclosed in this application are as follows: Figure 1-5The liquefied natural gas sampler shown includes a sampler body 1. A rotating rod 2 is inserted through the top of the sampler body 1, and a piston plate is attached to one end of the rotating rod 2. The piston plate is slidably connected to the sampler body 1. A connecting plate 3 is attached to the top of the rotating rod 2. A sampling head 4 is threadedly connected to the bottom of the sampler body 1. A protective mechanism is provided on the outside of the sampler body 1. The protective mechanism includes a protective sleeve 5 that is fitted onto the outside of the sampler body 1. A protective groove 6 is formed inside the protective sleeve 5, and a protective pad 7 is placed inside the protective groove 6. Two first springs 8 are provided on the inner wall of the protective sleeve 5, and an arc-shaped plate 9 is attached to one end of each of the two first springs 8. Two fixing rods 10 are formed on the surface of the protective sleeve 5. A protective ring 11 is threadedly connected to the outside of the sampler body 1, and two fixing rods 10 are formed on the surface of the protective ring 11. The fixed hole is connected to the fixed rod 10. The external thread of the fixed rod 10 is provided with a fixed ring 12, which can be used to put the protective sleeve 5 on the outside of the sampler body 1, so that the sampling head 4 is connected to the protective groove 6. The protective pad 7 inside the protective groove 6 protects the sampling head 4. The first spring 8 inside drives the arc plate 9 to clamp one side of the sampling head 4, which can enhance the connection effect of the device and improve the protection of the sampling head 4. The fixed rod 10 at the top of the protective sleeve 5 is connected to the fixed hole on the surface of the protective ring 11, and the fixed ring 12 is used to limit the connection of the fixed column, so that the protective sleeve 5 can better protect the sampler body 1, improve the protection of the device, and when the fixed ring 12 is sleeved on the outside of the sampler body 1, it can reinforce the protection of the outside of the sampler body 1.

[0021] Reference Figure 4 and Figure 5 As shown, the bottom of the connecting plate 3 is provided with two second springs 13, one end of which is provided with a damper, and one end of each damper is provided with a limit rod 14. The top of the sampler body 1 is fixedly provided with a fixing plate 16, and the surface of the fixing plate 16 is provided with two connecting holes 15. The connecting holes 15 are connected to the limit rods 14. The second springs 13 at the bottom of the connecting plate 3 drive the limit rods 14 to connect with the connecting holes 15, so as to prevent the connecting rod from driving the rotating rod 2 to rotate when the connecting plate 3 is accidentally touched while carrying the device, thus affecting the use effect of the device. Then, the limit rods 14 at the bottom are taken out of the connecting holes 15 by the connecting plate 3, so that the rotating rod 2 can rotate without affecting the use effect of the device.

[0022] The working principle of this utility model is as follows: After the device is used up, in order to prevent one end of the sampling head 4 from being exposed to the outside and becoming contaminated, the protective sleeve 5 can be put on the outside of the sampler body 1 so that the sampling head 4 is connected to the protective groove 6. The protective pad 7 inside the protective groove 6 protects the sampling head 4. The first spring 8 inside drives the arc plate 9 to clamp one side of the sampling head 4, which can enhance the connection effect of the device and improve the protection of the sampling head 4.

[0023] Then, the fixing rod 10 at the top of the protective sleeve 5 is connected to the fixing hole on the surface of the protective ring 11, and the fixing ring 12 is used to limit the connection of the fixing post, so that the protective sleeve 5 can better protect the sampler body 1 and improve the protection of the device. When the fixing ring 12 is sleeved with the outside of the sampler body 1, it can reinforce the outside of the sampler body 1.

[0024] When the sampler body 1 is not in use, the second spring 13 at the bottom of the connecting plate 3 drives the limiting rod 14 to connect with the connecting hole 15. This prevents the connecting rod from accidentally hitting the connecting plate 3 while carrying the device, causing the rotating rod 2 to rotate and thus affecting the device's performance. Then, the connecting plate 3 drives the bottom limiting rod 14 to be removed from the connecting hole 15, allowing the rotating rod 2 to rotate without affecting the device's performance.

[0025] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A liquefied natural gas sampler, comprising a sampler body (1), characterized in that: A rotating rod (2) is provided through the top of the sampler body (1), a piston plate is provided at one end of the rotating rod (2), the piston plate is slidably connected to the sampler body (1), a connecting plate (3) is provided at the top of the rotating rod (2), a sampling head (4) is threadedly connected to the bottom of the sampler body (1), and a protective mechanism is provided on the outside of the sampler body (1). The protective mechanism includes a protective sleeve (5) fitted onto the outside of the sampler body (1). The protective sleeve (5) has a protective groove (6) inside, and a protective pad (7) is provided inside the protective groove (6). The inner wall of the protective sleeve (5) is provided with two first springs (8), and one end of each of the two first springs (8) is provided with an arc plate (9). The surface of the protective sleeve (5) has two fixing rods (10).

2. The liquefied natural gas sampler according to claim 1, characterized in that: The sampler body (1) is externally threaded with a protective ring (11), and the surface of the protective ring (11) has two fixing holes.

3. The liquefied natural gas sampler according to claim 2, characterized in that: The fixing hole is connected to the fixing rod (10), and the fixing rod (10) has a fixing ring (12) on its external thread.

4. The liquefied natural gas sampler according to claim 1, characterized in that: The bottom of the connecting plate (3) is provided with two second springs (13), one end of the second spring (13) is provided with a damper, and one end of the damper is provided with a limit rod (14).

5. The liquefied natural gas sampler according to claim 1, characterized in that: A fixing plate (16) is fixedly provided on the top of the sampler body (1).

6. The liquefied natural gas sampler according to claim 5, characterized in that: The surface of the fixing plate (16) has two connecting holes (15), which are connected to the limiting rod (14).

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