Liquefied natural gas sampling device

Abstract

The utility model provides a liquefied natural gas sampling device, which relates to the technical field of liquefied natural gas and comprises a collecting cylinder, a collecting cavity is arranged in the middle of the inside of the collecting cylinder, a sampling head is mounted at the lower end of the inside of the collecting cavity in a penetrating manner, a drawing block is mounted inside the collecting cavity in an attached manner, and an extension rod is mounted at the upper end of the drawing block. According to the sampling device, the handle and the extension rod are connected through the clamping block and the clamping groove, so that a user can conveniently control the sampling device through the handle when the sampling device is used for sampling raw materials, and then the user can control the clamping block to be separated from the clamping groove and the circular groove through the handle after the sampling of the raw materials is completed; the handle and the extension rod are separated, so that the situation that normal storage is affected due to the fact that the handle is too long can be avoided, after raw materials are sampled, the raw materials do not need to be injected into another container to be stored, the whole sampling and storage steps are reduced, and the sampling and storage device is simpler and more convenient to use.

Description

TECHNICAL FIELD

[0001] The utility model relates to liquefied natural gas technical field, specifically, relate to a kind of liquefied natural gas sampling device. BACKGROUND

[0002] Liquefied natural gas, abbreviated as LNG, main component is methane, natural gas itself is colorless, odorless, nontoxic and non-corrosive, its volume is about 1 / 625 of the volume of same amount of gaseous natural gas, the quality of liquefied natural gas is only about 45% of same volume water, but the existing liquefied natural gas sampler is mostly syringe structure, by pulling lever piston moves, the gas in the syringe is inhaled, since the length of syringe pull rod is longer, it affects the storage of normal syringe, so the gas in the syringe needs to be introduced into a special container for storage, so the whole operation process is complicated, therefore we propose a kind of liquefied natural gas sampling device to solve the above problems. SUMMARY

[0003] The utility model discloses a liquefied natural gas sampling device, solve the existing liquefied natural gas sampler mostly syringe structure, by pulling lever piston moves, the gas in the syringe is inhaled, since the length of syringe pull rod is longer, it affects the storage of normal syringe, so the gas in the syringe needs to be introduced into a special container for storage, so the whole operation process is complicated.

[0004] To achieve the above object, the technical scheme adopted by the utility model is:

[0005] A kind of liquefied natural gas sampling device, including collection cylinder, the inside middle of the collection cylinder is equipped with collection cavity, sampling head is installed at the inside lower end of the collection cavity, pulling block is installed in the inside of the collection cavity, the upper end of the pulling block is installed with extension rod, the extension rod is movably installed in the inside upper end of collection cavity, the upper end of the collection cylinder is movably installed with handle, and the handle and extension rod are engagedly connected, the upper end of the collection cylinder is installed with positioning mechanism, and the positioning mechanism and extension rod are engagedly connected, cooling cavity is equipped on the inside outside of the collection cylinder, inlet pipe and outlet pipe are installed at the upper and lower sides of the two ends of the cooling cavity respectively, control valve is installed in the inside of the sampling head.

[0006] As preferred, the inside upper end of the collection cavity is equipped with through hole, and the extension rod and handle are engagedly installed in the inside of the through hole respectively, sealing ring is installed on the upper and lower sides of the inside of the through hole respectively, and the sealing ring is attached to the extension rod and handle.

[0007] As preferred, the positioning mechanism comprises a plurality of sliding grooves arranged circumferentially on the upper surface of the collecting cylinder, the inner part of each sliding groove is movably mounted with a sliding block, the side close to the extension rod of the sliding block is mounted with a positioning rod, and the positioning rod is clampedly installed in the inner part of the extension rod.

[0008] As preferred, the side away from the extension rod of the sliding block is mounted with a spring, the outer part of the rod body of the extension rod is provided with a plurality of positioning holes, the positioning holes are one-to-one corresponding to the positioning rods, and the positioning rods are clampedly installed in the inner part of the positioning holes.

[0009] As preferred, the lower end of the handle is fixedly mounted with a rotating rod, the lower end of the rotating rod is mounted with a clamping block, the upper surface of the extension rod is provided with a guide groove, the inner part of the lower end of the guide groove is provided with a circular groove, and the clamping block and the rotating rod are clampedly penetrated into the guide groove and movably installed in the inner part of the circular groove.

[0010] As preferred, the inner part of the upper end of the circular groove is provided with a clamping groove, and the clamping block is clampedly installed in the inner part of the clamping groove.

[0011] Compared with the prior art, the utility model has the advantages of:

[0012] (1) In the utility model, the handle and the extension rod are connected through the clamping block and the clamping groove, so that the user can control the handle when sampling the raw material, and then the user can control the clamping block to separate from the inner part of the clamping groove and the circular groove after sampling the raw material, so that the handle and the extension rod are separated, thereby avoiding the influence of the normal storage caused by the too long handle, and the raw material does not need to be injected into another container for storage after sampling, thereby reducing the overall sampling and storage steps and being more convenient.

[0013] (2) In the utility model, the sliding block is driven by the spring to insert the positioning rod into the inner part of the positioning hole after sampling the raw material, so that the positioning rod limits the extension rod, avoids the movement of the extension rod inwards caused by the collision during transportation, causes the extrusion of the raw material, improves the safety and stability of the whole, is more convenient to use, and can also make the cooling liquid flow along the liquid inlet pipe, the cooling cavity and the liquid outlet pipe, cool the whole, and keep the inside at a proper sample storage temperature. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a whole structure schematic view of the liquefied natural gas sampling device.

[0015] Figure 2 It is a front view structure schematic view of the liquefied natural gas sampling device.

[0016] Figure 3 It is a side view structure schematic diagram of the liquefied natural gas sampling device of the utility model;

[0017] Figure 4 It is a side view structure schematic diagram of the liquefied natural gas sampling device of the utility model; Figure 2 It is a section structure schematic diagram at A-A of the utility model;

[0018] Figure 5 It is a section structure schematic diagram at B-B of the utility model; Figure 3 It is a section structure schematic diagram at B-B of the utility model;

[0019] Figure 6 It is an enlarged structure schematic diagram at C of the utility model; Figure 4 It is an enlarged structure schematic diagram at C of the utility model;

[0020] Figure 7 It is an enlarged structure schematic diagram at D of the utility model. Figure 5 It is an enlarged structure schematic diagram at D of the utility model.

[0021] In the drawing: 1, collecting cylinder; 101, collecting cavity; 102, cooling cavity; 2, liquid inlet pipe; 3, liquid outlet pipe; 4, handle; 5, positioning mechanism; 501, sliding groove; 502, spring; 503, sliding block; 504, positioning rod; 505, positioning hole; 6, extension rod; 7, pulling block; 8, sampling head; 9, control valve; 10, through hole; 11, sealing ring; 12, rotating rod; 13, guide groove; 14, circular groove; 15, clamping groove; 16, clamping block. DETAILED DESCRIPTION

[0022] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0023] As Figures 1 to 7As shown in the utility model embodiment, the liquid natural gas sampling device comprises a collecting cylinder 1, a collecting cavity 101 is arranged in the middle of the inside of the collecting cylinder 1, a sampling head 8 is installed through the lower end of the inside of the collecting cavity 101, a pull-out block 7 is installed in the inside of the collecting cavity 101, an extension rod 6 is installed at the upper end of the pull-out block 7, the extension rod 6 is movably installed through the upper end of the inside of the collecting cavity 101, a handle 4 is movably installed at the upper end of the collecting cylinder 1, the handle 4 and the extension rod 6 are clampedly connected, a positioning mechanism 5 is installed at the upper end of the collecting cylinder 1, the positioning mechanism 5 and the extension rod 6 are clampedly connected, a cooling cavity 102 is arranged at the outside of the inside of the collecting cylinder 1, a liquid inlet pipe 2 and a liquid outlet pipe 3 are installed through the upper and lower sides of the two ends of the cooling cavity 102 respectively, and a control valve 9 is installed in the inside of the sampling head 8.

[0024] As Figures 4 to 7 shown in another embodiment of the utility model, a through hole 10 is arranged through the upper end of the inside of the collecting cavity 101, the extension rod 6 and the handle 4 are clampedly installed through the inside of the through hole 10 respectively, sealing rings 11 are installed on the upper and lower sides of the inside of the through hole 10 respectively, the sealing rings 11 are attached to the extension rod 6 and the handle 4, the positioning mechanism 5 comprises a plurality of sliding grooves 501, the sliding grooves 501 are circumferentially arranged on the upper surface of the collecting cylinder 1, sliding blocks 503 are movably installed in the insides of the sliding grooves 501 respectively, positioning rods 504 are installed on the sides, close to the extension rod 6, of the sliding blocks 503 respectively, the positioning rods 504 are clampedly installed in the inside of the extension rod 6, springs 502 are installed between the sides, away from the extension rod 6, of the sliding blocks 503 and the sliding grooves 501 respectively, a plurality of positioning holes 505 are arranged on the outer side of the rod body of the extension rod 6, the positioning holes 505 correspond to the positioning rods 504 one by one, the positioning rods 504 are clampedly installed in the inside of the positioning holes 505 respectively, a rotating rod 12 is fixedly installed at the lower end of the handle 4, a clamping block 16 is installed at the lower end of the rotating rod 12, a guide groove 13 is arranged on the upper surface of the extension rod 6, a circular groove 14 is arranged at the lower end of the inside of the guide groove 13, the clamping block 16 and the rotating rod 12 are clampedly installed through the guide groove 13 respectively and are movably installed in the inside of the circular groove 14, a clamping groove 15 is arranged at the upper end of the inside of the circular groove 14, and the clamping block 16 is clampedly installed in the inside of the clamping groove 15.

[0025] When sampling is needed, the user takes the handle 4 and the collection cylinder 1, and then inserts the rotating rod 12 and the clamping block 16 along the clamping groove 15 into the inside of the circular groove 14 by the handle 4, and then rotates the handle 4 by 90°, and then the user can control the slider 503 to drive the positioning rod 504 out of the inside of the positioning hole 505, after the positioning rod 504 is disengaged, the user can push the clamping block 16 and the extension rod 6 downwardly by the handle 4, so that the extension rod 6 drives the pull-out block 7 to move downwardly, and the pull-out block 7 discharges the air in the inside of the collection cylinder 1 outwardly, and then the user can connect the sampling head 8 and the discharge port of the raw material storage box, after the connection is completed, the user can pull the handle 4 outwardly, so that the handle 4 drives the clamping block 16 to be clamped into the inside of the clamping groove 15, and drives the extension rod 6 to move, so that the extension rod 6 cooperates with the pull-out block 7 to sample the raw material, and then after the sampling of the raw material is completed, the user can close the control valve 9 to avoid leakage of the sample along the sampling head 8, and then the user controls the slider 503 to be inserted into the inside of the positioning hole 505 by the pushing of the spring 502, so as to position the extension rod 6 and the pull-out block 7, and then the user slightly pushes the handle 4 downwardly, so that the handle 4 drives the clamping block 16 to be disengaged from the inside of the clamping groove 15, and then the user controls the handle 4 to be rotated by 90°, so that the user can take out the rotating rod 12 and the clamping block 16 by the handle 4, and then the user can separately collect and store the collection cylinder 1, which is more convenient;

[0026] During the storage of the collection cylinder 1, the user can connect the inlet pipe 2 and the outlet pipe 3 with the pipelines outside, so that the cooling liquid can enter the inside of the cooling cavity 102 through the inlet pipe 2, so as to maintain the temperature of the collection cylinder 1, and to more stably store the sample.

[0027] The working principle of the liquefied natural gas sampling device is as follows:

[0028] In use, first, when sampling is needed, the user takes the handle 4 and the collection cylinder 1, then the user inserts the rotating rod 12 and the clamping block 16 along the clamping groove 15 into the inside of the circular groove 14, then the user rotates the handle 4 by 90°, then the user controls the sliding block 503 to drive the positioning rod 504 to disengage from the inside of the positioning hole 505, after the positioning rod 504 disengages, the user pushes the clamping block 16 and the extension rod 6 downward through the handle 4, so that the extension rod 6 drives the pull-out block 7 to move downward, so that the pull-out block 7 exhausts the air in the inside of the collection cylinder 1 outward, then the user connects the sampling head 8 and the discharge port of the raw material storage box, after the connection is completed, the user pulls the handle 4 outward, so that the handle 4 drives the clamping block 16 to be clamped into the inside of the clamping groove 15, and drives the extension rod 6 to move, so that the extension rod 6 cooperates with the pull-out block 7 to sample the raw material, then the user closes the control valve 9 to avoid leakage of the sample along the sampling head 8, then the user controls the sliding block 503 to be inserted into the inside of the positioning hole 505 through the pushing of the spring 502, so as to position the extension rod 6 and the pull-out block 7, then the user slightly pushes the handle 4 downward, so that the handle 4 drives the clamping block 16 to disengage from the inside of the clamping groove 15, then the user controls the handle 4 to rotate by 90°, so that the user can take out the rotating rod 12 and the clamping block 16 through the handle 4, then the user can collect and store the collection cylinder 1 alone.

[0029] Obviously, the above embodiments of the present application are only examples for clearly illustrating the present application, and are not a limitation on the embodiments of the present application. For ordinary skilled in the art, other different forms of changes or variations can be made on the basis of the above description, and all the embodiments cannot be exhausted here, and any obvious changes or variations derived from the technical solutions of the present application still fall within the protection scope of the present application.

Claims

1. A device for sampling liquefied natural gas, comprising a collection cylinder (1), characterized in that: The inside of the collecting cylinder (1) is provided with a collecting cavity (101), the inside lower end of the collecting cavity (101) is provided with a sampling head (8), the inside of the collecting cavity (101) is provided with a pulling block (7), the upper end of the pulling block (7) is provided with an extension rod (6), the extension rod (6) is movably penetrated and installed at the inside upper end of the collecting cavity (101), the upper end of the collecting cylinder (1) is movably provided with a handle (4), the handle (4) and the extension rod (6) are clamped and connected, the upper end of the collecting cylinder (1) is provided with a positioning mechanism (5), the positioning mechanism (5) and the extension rod (6) are clamped and connected, the inside of the collecting cylinder (1) is provided with a cooling cavity (102), the upper and lower sides of the two ends of the cooling cavity (102) are provided with a liquid inlet pipe (2) and a liquid outlet pipe (3), respectively, the inside of the sampling head (8) is provided with a control valve (9).

2. A device for sampling liquefied natural gas according to claim 1, characterized in that: The inside upper end of the collecting cavity (101) is provided with a through hole (10), the extension rod (6) and the handle (4) are clamped and penetrated and installed in the inside of the through hole (10), respectively, the inside of the through hole (10) is provided with a sealing ring (11) on the upper and lower sides, respectively, and the sealing ring (11) is attached to the extension rod (6) and the handle (4).

3. A device for sampling liquefied natural gas according to claim 1, characterized in that: The positioning mechanism (5) comprises a plurality of sliding grooves (501), the sliding grooves (501) are circumferentially arranged on the upper surface of the collecting cylinder (1), the inside of each sliding groove (501) is movably provided with a sliding block (503), the side close to the extension rod (6) of the sliding block (503) is provided with a positioning rod (504), respectively, and the positioning rod (504) is clamped and installed in the inside of the extension rod (6).

4. A device for sampling liquefied natural gas according to claim 3, characterised in that: The side away from the extension rod (6) of the sliding block (503) and the sliding groove (501) are provided with a spring (502), respectively, the outer side of the rod body of the extension rod (6) is provided with a plurality of positioning holes (505), and the positioning holes (505) correspond to the positioning rods (504) one by one, and the positioning rods (504) are clamped and installed in the inside of the positioning holes (505), respectively.

5. The LNG sampling device of claim 1, wherein: The lower end of the handle (4) is fixedly provided with a rotating rod (12), the lower end of the rotating rod (12) is provided with a clamping block (16), the upper surface of the extension rod (6) is provided with a guide groove (13), the inside lower end of the guide groove (13) is provided with a circular groove (14), and the clamping block (16) and the rotating rod (12) are clamped and penetrated in the guide groove (13), respectively, and movably installed in the inside of the circular groove (14).

6. A device for sampling liquefied natural gas according to claim 5, characterized in that: The inside upper end of the circular groove (14) is provided with a clamping groove (15), and the clamping block (16) is clamped and installed in the inside of the clamping groove (15).

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