Sampling and storing device for liquefied natural gas inspection

Abstract

The utility model relates to the technical field of sampling storage equipment, in particular to a sampling storage device for liquefied natural gas inspection, which comprises sampling storage equipment, the sampling storage equipment comprises a sampling gas tank, the left side of the inner wall of the sampling gas tank is connected with a partition plate, and the left side of the sampling gas tank is provided with a pipe group. The pipe group comprises a threaded barrel fixedly connected with the side of the sampling gas tank, a sampling pipe is inserted into the threaded barrel and penetrates through the interior of the partition plate, and an adjusting accessory is arranged in the sampling gas tank. According to the utility model, the sampling tube is designed in a spiral elastic manner, after the sampling tube is used, the air inlet valve can be twisted to lock the sampling tube, the sampling tube rebounds and is stored in the storage cavity in the sampling gas tank in a spiral retraction state, and the screw cap is sleeved on the surface of the threaded cylinder in a threaded manner, so that the sampling tube can be stably stored in sampling storage equipment; and the condition that the sampling gas tank is dragged or repeatedly disassembled and assembled in the conveying process is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to sampling storage device technical field especially relates to a kind of sampling storage device of liquid natural gas inspection. BACKGROUND

[0002] Liquefied natural gas is mainly composed of methane, which is recognized as the cleanest fossil energy on earth. It is colorless, odorless, non-toxic and non-corrosive, with a volume of about 1 / 625 of the same amount of gaseous natural gas. The quality of liquefied natural gas is only about 45% of the same volume of water.

[0003] Currently, when sampling natural gas, an internal steel cylinder and an external bypass sampler are usually used to take natural gas for detection. Since this method has long pipelines and large diameters, after sampling is completed, the long sampling pipeline is inconvenient to store on the sampling tank, and the sampling pipeline is prone to be dragged on the ground surface, which is not conducive to the transportation of the sampling tank. Therefore, a sampling storage device for liquefied natural gas inspection is needed to solve the above problems. SUMMARY

[0004] The utility model aims to solve the problems raised in the background.

[0005] To achieve the above purpose, the utility model adopts the following technical scheme:

[0006] A sampling storage device for liquefied natural gas inspection includes a sampling storage device, which includes a sampling gas tank. The inner wall of the sampling gas tank is connected with a partition on the left side. The sampling gas tank is provided with a pipe group on the left side. The pipe group includes a threaded cylinder fixedly connected with the side of the sampling gas tank. A sampling pipe is inserted into the threaded cylinder, and the sampling pipe penetrates the inside of the partition. An adjusting accessory is arranged inside the sampling gas tank.

[0007] Preferably, the left side of the sampling pipe is connected with a docking cap. An air inlet valve is installed on the surface of the sampling pipe near the docking cap. By twisting the air inlet valve, the sampling pipe can be easily closed after extraction, making it convenient to store the sampling pipe.

[0008] Preferably, a screw cap is connected to the surface of the sampling pipe, and the screw cap is threadedly sleeved on the surface of the threaded cylinder. The right side of the sampling pipe is designed in a spiral shape. When the sampling pipe is stored in the storage cavity of the sampling gas tank, the screw cap can be threadedly connected with the threaded cylinder to ensure the stability of the sampling pipe during storage.

[0009] Preferably, the bottom end of the sampling gas tank is connected with a support, and the right bottom end of the sampling gas tank is connected with an air outlet pipe. An air outlet valve is installed on the surface of the air outlet pipe. The air outlet pipe can be easily used for exhaust operation, and the air outlet valve can control the opening and closing state of the air outlet pipe.

[0010] Preferably, the partition plate divides the sampling gas tank into a receiving cavity and a gas storage chamber, two backing plates are symmetrically connected to the inner wall of the sampling gas tank, the sampling tube is stored in the receiving cavity of the sampling gas tank, and the sample is stored in the gas storage chamber of the sampling gas tank.

[0011] Preferably, the adjusting accessory includes a pressing plate embedded in the gas storage chamber of the sampling gas tank, a pressing rod connected to the top end of the pressing plate, the pressing rod penetrating the top end of the sampling gas tank through a through hole, a butt protrusion connected to the top end of the sampling gas tank, the inner wall of the butt protrusion being attached to the surface of the pressing rod, a rubber pad end provided on the inner wall of the butt protrusion, and the rubber pad end being attached to the surface of the pressing rod to ensure the sealing effect of the opening of the butt protrusion.

[0012] Preferably, the pressing plate is provided with a sealing ring gasket on four sides, the outer side of the sealing ring gasket is attached to the inner wall of the sampling gas tank, a rubber pad is connected to the top end of the sealing ring gasket, a locking bolt is inserted into the right side of the butt protrusion through a threaded hole, and the shaft end of the locking bolt is attached to the surface of the pressing rod, so that the shaft end of the locking bolt is attached to the surface of the pressing rod when the pressing rod is adjusted in the butt protrusion, thereby controlling the stability of the pressing rod.

[0013] The utility model at least has the following beneficial effects:

[0014] 1. The pipe group is provided, the retraction and storage operation of the sampling tube is realized, compared with the traditional structure, the sampling tube is designed as a spiral elastic force, the air inlet valve is twisted to lock the sampling tube after use, the sampling tube is retracted and stored in the receiving cavity inside the sampling gas tank in the spiral retraction state, the screw cap is threadedly sleeved on the surface of the threaded cylinder, the sampling tube can be stably stored in the sampling storage equipment, and the situation that the sampling gas tank is dragged or repeatedly disassembled during transportation is avoided.

[0015] 2. The adjusting accessory is provided, the space in the gas storage chamber of the sampling gas tank is adjusted, and the exhaust of natural gas is accelerated, the pressing rod is pulled up and down, the pressing plate is pulled or pushed, the size of the space in the gas storage chamber of the sampling gas tank is changed, the space is freely adjusted according to the use requirement, and when the gas is exhausted, the pressing plate is pushed by moving the pressing rod, the sampling chamber in the sampling gas tank is compressed, and the exhaust efficiency is improved to a certain extent. DRAWINGS

[0016] In order to more clearly illustrate the technical scheme of the embodiment of the utility model, the drawings needed in the embodiment description will be briefly introduced below, and obviously, the drawings in the following description are some embodiments of the utility model, and those skilled in the art can also obtain other drawings according to these drawings without creating labor.

[0017] Figure 1 An external structure schematic view of the sampling storage device for liquid natural gas inspection is provided in the utility model;

[0018] Figure 2 An internal disassembly structure schematic view of the sampling storage device for liquid natural gas inspection is provided in the utility model;

[0019] Figure 3 A three-dimensional disassembly structure schematic view of the pipe group in the sampling storage device for liquid natural gas inspection is provided in the utility model;

[0020] Figure 4 A three-dimensional disassembly structure schematic view of the adjusting accessory in the sampling storage device for liquid natural gas inspection is provided in the utility model.

[0021] In the drawing: 1, sampling storage equipment; 11, sampling gas tank; 12, support; 13, partition; 14, gas outlet pipe; 15, gas outlet valve; 16, pad; 2, pipe group; 21, threaded cylinder; 22, screw cap; 23, sampling pipe; 24, butt cap; 25, air inlet valve; 3, adjusting accessory; 31, pressing plate; 32, sealing ring pad; 33, rubber pad; 34, butt protrusion; 35, pressing rod; 36, locking bolt. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical scheme and advantages of the utility model more clear and obvious, the following will be further described in detail in combination with the drawings and examples. It should be understood that the specific examples described herein are only used to explain the utility model, and are not used to limit the utility model.

[0023] Reference Figures 1-4 A sampling storage device for liquid natural gas inspection, comprising sampling storage equipment 1, the sampling storage equipment 1 includes sampling gas tank 11, the left side of the inner wall of sampling gas tank 11 is connected with partition 13, and the left side of sampling gas tank 11 is provided with pipe group 2; pipe group 2 includes threaded cylinder 21 fixedly connected with the side of sampling gas tank 11, sampling pipe 23 is inserted in threaded cylinder 21, sampling pipe 23 penetrates the inside of partition 13, and adjusting accessory 3 is arranged in sampling gas tank 11.

[0024] The left side of sampling pipe 23 is connected with butt cap 24, and air inlet valve 25 is installed on the position close to butt cap 24 on the surface of sampling pipe 23.

[0025] Screw cap 22 is connected on the surface of sampling pipe 23, and screw cap 22 is threadedly sleeved on the surface of threaded cylinder 21, and the right side of sampling pipe 23 is designed in a spiral shape.

[0026] The bottom end of the sampling gas tank 11 is connected with a support 12, the right bottom end of the sampling gas tank 11 is connected with a gas outlet pipe 14, and the surface of the gas outlet pipe 14 is installed with a gas outlet valve 15.

[0027] The partition plate 13 divides the sampling gas tank 11 into a receiving cavity and a gas storage chamber, and the sampling gas tank 11 and the partition plate 13 are symmetrically connected with two gaskets 16 on the inner walls.

[0028] The adjusting assembly 3 includes a pressing plate 31 which is embedded in the gas storage chamber of the sampling gas tank 11, the top end of the pressing plate 31 is connected with a pressing rod 35 which penetrates the top end of the sampling gas tank 11 through a through hole, the top end of the sampling gas tank 11 is connected with a butt protrusion 34, and the inner wall of the butt protrusion 34 is in close contact with the surface of the pressing rod 35.

[0029] The pressing plate 31 is provided with a sealing ring gasket 32 on four sides, and the outer side of the sealing ring gasket 32 is in close contact with the inner wall of the sampling gas tank 11, the top end of the sealing ring gasket 32 is connected with a rubber pad 33, the right side of the butt protrusion 34 is inserted with a locking bolt 36 through a threaded hole, and the shaft end of the locking bolt 36 is in contact with the surface of the pressing rod 35.

[0030] The butt cap 24 is arranged on the left side of the sampling pipe 23, which can be easily connected with the sampling device, and the sampling pipe 23 can be easily closed after sampling by twisting the gas inlet valve 25, which facilitates the storage of the sampling pipe 23, when the sampling pipe 23 is stored in the receiving cavity of the sampling gas tank 11, the screw cap 22 can be screwed between the threaded cylinder 21 to ensure the stability of the sampling pipe 23 during storage, the spiral section of the sampling pipe 23 is designed to be elastic, which can rebound during contraction, improving the convenience of storing the sampling pipe 23, the sampling gas tank 11 is supported by the support 12 to ensure the stability of the sampling gas tank 11 during transportation, and the gas outlet pipe 14 can be easily used for exhaust operation.

[0031] The opening and closing state of the gas outlet pipe 14 can be controlled by the gas outlet valve 15, the sampling pipe 23 can be stored in the receiving cavity of the sampling gas tank 11, and the sample storage operation can be performed in the gas storage chamber of the sampling gas tank 11, and the gasket 16 on the inner wall of the sampling gas tank 11 and the partition plate 13 can support the pressing plate 31, preventing the pressing plate 31 from moving below the opening at the end of the sampling pipe 23 during downward movement, thereby reducing the risk of gas leakage.

[0032] By pressing down the pressure rod 35, the pressure plate 31 can be pushed to move, thereby controlling the space in the gas storage bin of the sampling gas tank 11. It is fixed to the top of the sampling gas tank 11 through the docking protrusion 34. A rubber pad end is provided on the inner wall of the docking protrusion 34. The rubber pad end is fitted on the surface of the pressure rod 35 to ensure the sealing effect of the pressure rod 35 and the opening of the docking protrusion 34. When the pressure rod 35 is moved and adjusted in the docking protrusion 34, the axial end of the locking bolt 36 can be made to contact the surface of the pressure rod 35, thereby controlling the stability of the pressure rod 35. When the pressure rod 35 moves downward, it can drive the pressure plate 31 to move, thereby compressing the space in the gas storage bin of the sampling gas tank 11. A sealing ring gasket 32 ​​and a rubber gasket 33 are provided on the outside of the pressure plate 31 to further improve the sealing performance of the pressure plate 31 after movement.

[0033] Working principle: According to the attached Figure 2 With attached Figure 3 As shown, during use, the docking cap 24 can be pulled outward to move the sampling tube 23. When the sampling tube 23 is pulled to an appropriate length, the docking cap 24 can be docked with the interface of the extraction equipment. After the liquefied natural gas is extracted and sampled, it is poured into the gas storage bin on the right side of the sampling gas tank 11. At this time, the air inlet valve 25 is twisted to close the opening of the sampling tube 23. At the same time, the screw cap 22 is threadedly sleeved on the outside of the threaded barrel 21 to retract the sampling tube 23 into the storage cavity on the left side of the sampling gas tank 11.

[0034] Secondly, according to the attached Figure 3 With attached Figure 4 As shown, according to the total amount of sampling, the pressure rod 35 can be pressed down so that the axial end of the pressure rod 35 pushes the pressure plate 31 to move. The movement of the pressure plate 31 can compress the gas storage bin in the sampling gas tank 11. When the pressure plate 31 moves, it can synchronously drive the sealing ring gasket 32 ​​and the rubber gasket 33 to move, and then control the sampling gas tank 11 to be compressed. When discharging liquefied natural gas, the movement of the pressure plate 31 can also play a certain compression and pushing effect. The liquefied natural gas can be discharged from the outlet pipe 14 after the outlet valve 15 is opened.

[0035] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions merely illustrate the principles of the present invention. Various changes and improvements are possible without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed for the present invention is defined by the appended claims and their equivalents.

Claims

1. A sampling storage device for liquid natural gas inspection, comprising a sampling storage device (1), characterized in that, The sampling storage device (1) includes a sampling gas tank (11), the left side of the inner wall of the sampling gas tank (11) is connected with a partition plate (13), the left side of the sampling gas tank (11) is provided with a pipe group (2), the pipe group (2) includes a threaded cylinder (21) fixedly connected with the side of the sampling gas tank (11), a sampling pipe (23) is inserted in the threaded cylinder (21), and the sampling pipe (23) penetrates the inside of the partition plate (13), and the inside of the sampling gas tank (11) is provided with an adjusting accessory (3).

2. A sampling storage device for liquid natural gas inspection according to claim 1, characterized in that, The left side of the sampling pipe (23) is connected with a docking cap (24), and the surface of the sampling pipe (23) is provided with an air inlet valve (25) near the position of the docking cap (24).

3. A sampling storage device for liquid natural gas inspection according to claim 2, characterized in that, The surface of the sampling pipe (23) is connected with a screw cap (22), and the screw cap (22) is threadedly sleeved on the surface of the threaded cylinder (21), and the right side of the sampling pipe (23) is designed in a spiral.

4. A sampling storage device for liquid natural gas inspection as defined in claim 1, wherein, The bottom end of the sampling gas tank (11) is connected with a support (12), the right bottom end of the sampling gas tank (11) is connected with an air outlet pipe (14), and the surface of the air outlet pipe (14) is provided with an air outlet valve (15).

5. A sampling storage device for liquid natural gas inspection as defined in claim 1, wherein, The partition plate (13) divides the inside of the sampling gas tank (11) into a receiving cavity and a gas storage chamber, and the inner wall of the sampling gas tank (11) and the partition plate (13) are symmetrically connected with two gaskets (16).

6. A sampling storage device for liquid natural gas inspection as defined in claim 1, wherein, The adjusting accessory (3) includes a pressing plate (31), the pressing plate (31) is embedded in the gas storage chamber of the sampling gas tank (11), the top end of the pressing plate (31) is connected with a pressing rod (35), the pressing rod (35) penetrates the top end of the sampling gas tank (11) through a through hole, the top end of the sampling gas tank (11) is connected with a docking protrusion (34), and the inner wall of the docking protrusion (34) is attached to the surface of the pressing rod (35).

7. A sampling and storage device for liquid natural gas inspection according to claim 6, characterized in that, The four sides of the pressing plate (31) are sleeved with a sealing ring gasket (32), and the outer side of the sealing ring gasket (32) is attached to the inner wall of the sampling gas tank (11), the top end of the sealing ring gasket (32) is connected with a rubber pad (33), the right side of the docking protrusion (34) is inserted with a locking bolt (36) through a threaded hole, and the shaft end of the locking bolt (36) abuts against the surface of the pressing rod (35).

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