Portable liquefied natural gas sampler

Abstract

The utility model discloses a portable liquefied natural gas sampler, which relates to the technical field of liquefied natural gas and comprises a base, a cooling mechanism is arranged on the surface of the base, and a connecting mechanism is arranged on the surface of the cooling mechanism. The inserting pipe is aligned with the inserting groove formed by the boss and the connecting pipe and is inserted into the inserting groove, when the clamping ball makes contact with the connecting sleeve, the clamping ball extrudes the second spring to retract into the liquid discharging pipe till the clamping ball makes contact with the groove in the inner side of the connecting sleeve, the second spring pushes the clamping ball to conduct clamping, and the sealing gasket makes contact with the clamping groove in the surface of the boss; at the moment, a movable sleeve is pushed, so that a sliding block slides in a sliding groove until the movable sleeve is connected to the surfaces of a liquid discharging pipe and a connecting sleeve in a sleeving mode, a clamping device is screwed to complete fixing, meanwhile, a push rod on the surface of a second fixing communicating plate pushes a ball valve, a connecting base shrinks, the ball valve does not block a boss any more, and liquefied natural gas flows into a cooling mechanism to be stored; and the adaptability of the device is improved.

Description

Technical Field

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

[0002] Liquefied natural gas (LNG) is a liquefied form of natural gas, primarily composed of methane, and is widely recognized as the cleanest fossil fuel on Earth. It is colorless, odorless, non-toxic, and non-corrosive. Its volume is approximately 1 / 625th that of the same amount of gaseous natural gas, and its mass is only about 45% that of the same volume of water. Its production process involves purifying natural gas produced from gas fields, followed by a series of cryogenic liquefaction processes, and then transporting it using LNG carriers. LNG combustion produces very little air pollution and releases a large amount of heat, making it a relatively advanced energy source.

[0003] Patent publication number CN204785571U discloses a portable liquefied natural gas sampler, including a sampling cylinder. Its structural features are: the outlet of the sampling cylinder is connected to a second manual valve; the inlet of the sampling cylinder is connected to a homogenization buffer system through a first manual valve; the homogenization buffer system is specifically configured such that one end of the quick-connect fitting at the outlet of the homogenization buffer system is connected to the first manual valve, and the other end is connected to the first connector of the tee through a third manual valve.

[0004] To address the issue of inconsistent sample collection, existing technologies employ electric heating pressure regulating valves to heat the natural gas, preventing condensation caused by pressure drops in the sampling system pipelines and ensuring stable natural gas pressure. This avoids the rapid fractionation and vaporization of components in liquefied natural gas due to temperature and pressure variations, and ensures that the component ratio of the collected gas sample matches that of the tested liquefied natural gas. However, this approach still presents challenges in terms of rapid installation, leading to poor adaptability. Utility Model Content

[0005] The purpose of this invention is to provide a portable liquefied natural gas sampler to solve the problems mentioned in the background art.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0007] A portable liquefied natural gas sampler includes a base, a cooling mechanism on the surface of the base, and a connecting mechanism on the surface of the cooling mechanism.

[0008] The connecting mechanism includes a connecting seat, which is fixedly installed on the surface of the base. A boss is fixedly installed on the inner side of one end of the connecting seat, and a slot is provided at one end of the boss. A connecting pipe is fixedly installed on the surface of the connecting seat, and a first fixed connecting plate is fixedly installed inside the connecting pipe. A first spring is fixedly installed on the surface of the first fixed connecting plate, and a ball valve is fixedly installed on the surface of the first spring. The ball valve is adapted to the boss.

[0009] A further improvement of this utility model is that: a connecting sleeve is fixedly installed on the surface of the connecting tube, a groove is provided on the inner side of the connecting sleeve, a movable sleeve is movably installed on the surface of the connecting sleeve, sliders are evenly distributed and fixedly installed on the surface of the movable sleeve, and a clamp is threadedly connected to the surface of the movable sleeve.

[0010] A further improvement of this utility model is that: an insertion tube is movably installed on the surface of the boss, a drain pipe is fixedly installed on the surface of the insertion tube, and grooves are evenly distributed on the surface of the drain pipe, the grooves being adapted to the slider.

[0011] A further improvement of this utility model is that: a sealing gasket is fixedly installed at one end of the drain pipe, the sealing gasket is adapted to the groove on the surface of the boss, a second fixed connecting plate is fixedly installed inside the drain pipe, and a push rod is fixedly installed on the surface of the second fixed connecting plate.

[0012] A further improvement of this utility model is that: a second spring is sleeved inside the drain pipe, and a retaining bead is fixedly installed at one end of the second spring, the retaining bead being adapted to the groove of the connecting sleeve.

[0013] A further improvement of the present invention is that the cooling mechanism includes a bracket, the bracket is fixedly installed on the surface of the base, a handle is fixedly installed on the surface of the bracket, an outer cylinder wall is fixedly installed on the surface of the bracket, an inner cylinder wall is fixedly installed inside the outer cylinder wall, a cooling pipe is provided between the outer cylinder wall and the inner cylinder wall, and a temperature detector is fixedly installed inside the inner cylinder wall.

[0014] A further improvement of the present invention is that the cooling mechanism further includes a housing, the housing is fixedly installed on the surface of the base, a micro water pump is fixedly installed inside the housing, the micro water pump is electrically connected to a temperature detector, one end of the cooling pipe is fixedly installed at the input end of the micro water pump, a small heat exchanger is fixedly installed at the output end of the micro water pump, and the small heat exchanger is fixedly installed at one end of the cooling pipe.

[0015] Due to the adoption of the above technical solution, the technological progress achieved by this utility model compared to the prior art is as follows:

[0016] 1. This utility model provides a portable liquefied natural gas sampler, which employs a connecting base, connecting sleeve, movable sleeve, clamp, drain pipe, slide groove, slider, connecting pipe, first fixed connecting plate, first spring, ball valve, second spring, locking ball, insertion tube, sealing gasket, second fixed connecting plate, boss, and push rod in cooperation. It connects to the base of the cumulative sampling device via the drain pipe, and inserts the insertion tube into the slot formed by the boss and connecting pipe. When the locking ball contacts the connecting sleeve, it compresses the second spring and retracts into the drain pipe until it contacts the groove on the inner side of the connecting sleeve. The second spring then pushes the locking ball to engage. At this time, the sealing gasket contacts the groove on the surface of the boss, thus facilitating the connection of the device. While maintaining a tight seal, the trapezoidal design, wider at the front and narrower at the back, ensures a closer connection between the connecting pipe and the drain pipe. Pushing the movable sleeve allows the slider to slide within the groove until the movable sleeve fits onto the surfaces of the drain pipe and the connecting sleeve. Tightening the clamp completes the fixation. Simultaneously, the push rod on the surface of the second fixed connecting plate pushes the ball valve, causing the connecting seat to contract. The ball valve no longer blocks the boss, and liquefied natural gas flows from the second and first fixed connecting plates into the cooling mechanism for storage. After sampling, by separating the movable sleeve from the drain pipe, the first spring rebounds, pushing the ball valve tightly against the boss outlet, and the internal pressure compresses it, preventing liquefied natural gas leakage and improving the adaptability of the device.

[0017] 2. This utility model provides a portable liquefied natural gas sampler, which adopts a shell, a micro water pump, a small heat exchanger, a cooling pipe, an outer cylinder wall, an inner cylinder wall, a temperature detector, a handle, and a support. By setting a cooling pipe between the outer cylinder wall and the inner cylinder wall, when the temperature detector detects a temperature change, the micro water pump draws coolant from the cooling pipe. The micro water pump 302 is model UPA 15-120. By delivering the coolant to the small heat exchanger for cooling and then delivering it back to the outer cylinder wall, the liquefied natural gas in the inner cylinder wall is always maintained between 12-30 degrees Celsius. After sampling, the device can be picked up by the handle on the surface of the support, which improves the portability and adaptability of the device. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0019] Figure 2 This is a schematic diagram of the structure of the present invention from an axial view perspective;

[0020] Figure 3 This is a schematic diagram of the connection mechanism of this utility model;

[0021] Figure 4 This is a schematic diagram of the structure of the ball valve of this utility model;

[0022] Figure 5 This is a schematic diagram of the cooling mechanism of this utility model;

[0023] Figure 6 This is a schematic diagram of the outer cylinder wall of this utility model.

[0024] In the diagram: 1. Base; 2. Connecting mechanism; 201. Connecting seat; 202. Connecting sleeve; 203. Movable sleeve; 204. Clamping device; 205. Drain pipe; 206. Slide groove; 207. Slider; 208. Connecting pipe; 209. First fixed connecting plate; 210. First spring; 211. Ball valve; 212. Second spring; 213. Clamping ball; 214. Insertion tube; 215. Sealing gasket; 216. Second fixed connecting plate; 217. Boss; 218. Push rod; 3. Cooling mechanism; 301. Outer shell; 302. Miniature water pump; 303. Small heat exchanger; 304. Cooling pipe; 305. Outer cylinder wall; 306. Inner cylinder wall; 307. Temperature detector; 308. Handle; 309. Support. Detailed Implementation

[0025] The present invention will be further described in detail below with reference to embodiments:

[0026] Example 1

[0027] like Figure 1-6As shown, this utility model provides a portable liquefied natural gas sampler, including a base 1. A cooling mechanism 3 is provided on the surface of the base 1, and a connecting mechanism 2 is provided on the surface of the cooling mechanism 3. The connecting mechanism 2 includes a connecting seat 201, which is fixedly installed on the surface of the base 1. A boss 217 is fixedly installed on the inner side of one end of the connecting seat 201, and a slot is provided at one end of the boss 217. A connecting pipe 208 is fixedly installed on the surface of the connecting seat 201, and a first fixed connecting plate 209 is fixedly installed inside the connecting pipe 208. A first spring 210 is fixedly installed on the surface of the first fixed connecting plate 209, and a ball valve 211 is fixedly installed on the surface of the first spring 210. The ball valve 211 is adapted to the boss 217. A connecting sleeve 202 is fixedly installed on the surface of the connecting pipe 208, and a groove is provided on the inner side of the connecting sleeve 202. The device is equipped with a movable sleeve 203. A slider 207 is evenly distributed and fixedly installed on the surface of the movable sleeve 203. A clamp 204 is threadedly connected to the surface of the movable sleeve 203. An insertion tube 214 is movably installed on the surface of the boss 217. A drain pipe 205 is fixedly installed on the surface of the insertion tube 214. A sliding groove 206 is evenly distributed on the surface of the drain pipe 205. The sliding groove 206 is adapted to the slider 207. A sealing washer 215 is fixedly installed at one end of the drain pipe 205. The sealing washer 215 is adapted to the groove on the surface of the boss 217. A second fixed connecting plate 216 is fixedly installed inside the drain pipe 205. A push rod 218 is fixedly installed on the surface of the second fixed connecting plate 216. A second spring 212 is sleeved inside the drain pipe 205. A retaining bead 213 is fixedly installed at one end of the second spring 212. The retaining bead 213 is adapted to the groove of the connecting sleeve 202.

[0028] In this embodiment, the base 1 of the cumulative sampling device is connected to the drain pipe 205, and the insertion tube 214 is aligned with the slot formed by the boss 217 and the connecting pipe 208 and inserted. When the retaining bead 213 contacts the connecting sleeve 202, the retaining bead 213 compresses the second spring 212 and retracts into the drain pipe 205 until it contacts the groove on the inner side of the connecting sleeve 202. The second spring 212 pushes the retaining bead 213 to engage. At this time, the sealing gasket 215 contacts the groove on the surface of the boss 217. While maintaining the sealing of the device channel, the trapezoidal design, which is wider at the front and narrower at the back, makes the connection between the connecting pipe 208 and the drain pipe 205 closer. At this time, the movable sleeve 203 is pushed, so that the slider 207 slides in the groove. Slide the movable sleeve 203 within 206 until it fits onto the surface of the drain pipe 205 and the connecting sleeve 202. Tighten the clamp 204 to complete the fixation. At the same time, the push rod 218 on the surface of the second fixed connecting plate 216 pushes the ball valve 211, causing the connecting seat 201 to contract. The ball valve 211 no longer blocks the boss 217. The liquefied natural gas flows into the cooling mechanism 3 for storage through the second fixed connecting plate 216 and the first fixed connecting plate 209. After sampling, by separating the movable sleeve 203 from the drain pipe 205, the first spring 210 rebounds and pushes the ball valve 211 to tightly fit the outlet of the boss 217. The internal pressure makes it tight, preventing the leakage of liquefied natural gas and improving the adaptability of the device.

[0029] Example 2

[0030] like Figure 1-6 As shown, based on Embodiment 1, this utility model provides a technical solution: Preferably, the cooling mechanism 3 includes a bracket 309, which is fixedly installed on the surface of the base 1. A handle 308 is fixedly installed on the surface of the bracket 309. An outer cylinder wall 305 is fixedly installed on the surface of the bracket 309. An inner cylinder wall 306 is fixedly installed inside the outer cylinder wall 305. A cooling pipe 304 is provided between the outer cylinder wall 305 and the inner cylinder wall 306. A temperature detector 307 is fixedly installed inside the inner cylinder wall 306. The cooling mechanism 3 also includes a housing 301, which is fixedly installed on the surface of the base 1. A micro water pump 302 is fixedly installed inside the housing 301. The micro water pump 302 is electrically connected to the temperature detector 307. One end of the cooling pipe 304 is fixedly installed at the input end of the micro water pump 302. A small heat exchanger 303 is fixedly installed at the output end of the micro water pump 302. The small heat exchanger 303 is fixedly installed at one end of the cooling pipe 304.

[0031] In this embodiment, a cooling pipe 304 is installed between the outer cylinder wall 305 and the inner cylinder wall 306. When the temperature detector 307 detects a temperature change, a micro water pump 302 draws coolant from the cooling pipe 304. The micro water pump 302 is a UPA15-120. The coolant is transported to a small heat exchanger 303 for cooling and then transported back to the outer cylinder wall 305. This ensures that the liquefied natural gas in the inner cylinder wall 306 is always maintained between 12 and 30 degrees Celsius. After sampling, the device can be picked up using the handle 308 on the surface of the support 309, which improves the portability and adaptability of the device.

[0032] The working principle of this portable liquefied natural gas sampler will be explained in detail below.

[0033] like Figure 1-6 As shown, the base 1 of the cumulative sampling device is connected via the drain pipe 205. The insertion tube 214 is aligned with the slot formed by the boss 217 and the connecting pipe 208 and inserted. When the retaining bead 213 contacts the connecting sleeve 202, the retaining bead 213 compresses the second spring 212 and retracts into the drain pipe 205 until it contacts the groove on the inner side of the connecting sleeve 202. The second spring 212 pushes the retaining bead 213 to engage. At this time, the sealing gasket 215 contacts the groove on the surface of the boss 217. While maintaining the sealing of the device channel, the trapezoidal design, which is wider at the front and narrower at the back, makes the connection between the connecting pipe 208 and the drain pipe 205 closer. At this time, the movable sleeve 203 is pushed, causing the slider 207 to slide in the groove 206 until the movable sleeve 203 is fitted onto the surface of the drain pipe 205 and the connecting sleeve 202. Tightening the clamp 204 completes the fixation, and simultaneously, the push rod 218 on the surface of the second fixed connecting plate 216 pushes the ball valve 211, causing the connecting seat 201 to retract. The ball valve 211 no longer blocks the boss 217, and the liquefied natural gas flows into the cooling mechanism 3 for storage through the second fixed connecting plate 216 and the first fixed connecting plate 209. After sampling, by separating the movable sleeve 203 from the drain pipe 205, the first spring 210 rebounds and pushes the ball valve 211 to tightly fit against the outlet of the boss 217, and the internal pressure makes it tight, preventing the liquefied natural gas from leaking. A cooling pipe 304 is installed between the outer cylinder wall 305 and the inner cylinder wall 306. When the temperature detector 307 detects a temperature change, the micro water pump 302 draws the coolant from the cooling pipe 304. The micro water pump 302 is a UPA model. 15-120, by supplying coolant to the small heat exchanger 303 for cooling and then resupplying it to the outer cylinder wall 305, the liquefied natural gas in the inner cylinder wall 306 is always maintained between 12-30 degrees. After sampling, the device can be picked up by the handle 308 on the surface of the support 309, which improves the portability and adaptability of the device.

[0034] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the protection scope of the present invention.

Claims

1. A portable liquefied natural gas sampler, comprising a base (1), characterized in that: The surface of the base (1) is provided with a cooling mechanism (3), and the surface of the cooling mechanism (3) is provided with a connecting mechanism (2). The connecting mechanism (2) includes a connecting seat (201), which is fixedly installed on the surface of the base (1). A boss (217) is fixedly installed on the inner side of one end of the connecting seat (201). A slot is provided at one end of the boss (217). A connecting pipe (208) is fixedly installed on the surface of the connecting seat (201). A first fixed connecting plate (209) is fixedly installed inside the connecting pipe (208). A first spring (210) is fixedly installed on the surface of the first fixed connecting plate (209). A ball valve (211) is fixedly installed on the surface of the first spring (210). The ball valve (211) is adapted to the boss (217).

2. The portable liquefied natural gas sampler according to claim 1, characterized in that: A connecting sleeve (202) is fixedly installed on the surface of the connecting tube (208). A groove is provided on the inner side of the connecting sleeve (202). A movable sleeve (203) is movably installed on the surface of the connecting sleeve (202). A slider (207) is evenly distributed and fixedly installed on the surface of the movable sleeve (203). A clamp (204) is threadedly connected to the surface of the movable sleeve (203).

3. A portable liquefied natural gas sampler according to claim 1, characterized in that: A tube (214) is movably mounted on the surface of the boss (217), and a drain pipe (205) is fixedly mounted on the surface of the tube (214). Slide grooves (206) are evenly distributed on the surface of the drain pipe (205), and the slide grooves (206) are adapted to the slider (207).

4. A portable liquefied natural gas sampler according to claim 3, characterized in that: A sealing gasket (215) is fixedly installed at one end of the drain pipe (205). The sealing gasket (215) is adapted to the groove on the surface of the boss (217). A second fixed connecting plate (216) is fixedly installed inside the drain pipe (205). A push rod (218) is fixedly installed on the surface of the second fixed connecting plate (216).

5. A portable liquefied natural gas sampler according to claim 3, characterized in that: The drain pipe (205) is fitted with a second spring (212), and a retaining bead (213) is fixedly installed at one end of the second spring (212). The retaining bead (213) is adapted to the groove of the connecting sleeve (202).

6. A portable liquefied natural gas sampler according to claim 1, characterized in that: The cooling mechanism (3) includes a bracket (309), which is fixedly installed on the surface of the base (1). A handle (308) is fixedly installed on the surface of the bracket (309). An outer cylinder wall (305) is fixedly installed on the surface of the bracket (309). An inner cylinder wall (306) is fixedly installed inside the outer cylinder wall (305). A cooling pipe (304) is provided between the outer cylinder wall (305) and the inner cylinder wall (306). A temperature detector (307) is fixedly installed inside the inner cylinder wall (306).

7. A portable liquefied natural gas sampler according to claim 6, characterized in that: The cooling mechanism (3) also includes a housing (301), which is fixedly installed on the surface of the base (1). A micro water pump (302) is fixedly installed inside the housing (301). The micro water pump (302) is electrically connected to a temperature detector (307). One end of the cooling pipe (304) is fixedly installed at the input end of the micro water pump (302). A small heat exchanger (303) is fixedly installed at the output end of the micro water pump (302). The small heat exchanger (303) is fixedly installed at one end of the cooling pipe (304).

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