A sustainable aircraft fuel sampling device

Abstract

The present invention relates to the technical field of fuel sampling, and specifically discloses a sustainable aircraft fuel sampling device, comprising: a fixed cylinder and a plurality of sampling barrels arranged along the length direction of the fixed cylinder, and also comprising: a sampling cover with upper and lower openings and in an annular shape, wherein the fixed cylinder and the sampling cover are coaxially arranged, a plurality of shielding components are arranged on the fixed cylinder along the length direction thereof, a sampling barrel is arranged between two adjacent shielding components, each shielding component comprises a plurality of receiving grooves arranged along the circumference of the fixed cylinder, a rotating rod which can be sealedly connected to the receiving groove is provided on the receiving groove, and a foldable folding cloth is connected between the rotating rod and the receiving groove; the present invention can sample fuel at different depths in a fuel storage tank at one time by arranging a plurality of sampling barrels, divide the sampling into a plurality of sampling spaces, and stir the fuel in different sampling spaces, so that the data is more accurate when sampling the fuel in the same sampling space.

Description

Technical Field

[0001] The present invention relates to the technical field of fuel sampling, and in particular to a sustainable aircraft fuel sampling device. Background Art

[0002] Sustainable aviation fuel (SAF) is a new aviation fuel alternative developed based on a variety of renewable resources such as waste animal and vegetable oils, oils, used cooking oils, urban domestic waste, and agricultural and forestry wastes, using the concept of sustainable development. Compared with traditional fossil fuels commonly used in the market, this energy can reduce the total carbon emissions from the collection of raw materials to the final consumer use by up to 85%.

[0003] The Chinese patent document with the authorization announcement number CN117969181B provides a sampling and testing device for petroleum engineering, including an upper fixed plate, a lower fixed plate and a plurality of sampling tanks, a movable plug is arranged in the sampling tank, a guide column is fixedly connected between the upper fixed plate and the lower fixed plate, a clamping assembly and a pair of threaded plates are installed inside the lifting box, the clamping assembly is used to fix the lifting box with the guide column, a second electromagnet is fixedly installed between the pair of threaded plates, the second electromagnet is used to make the threaded plate match the threaded column, the clamping assembly is connected to the movable plug through a plug transmission assembly, the plug transmission assembly is driven by a worm, the two ends of the worm are respectively connected to the upper fixed plate and the lower fixed plate for rotation, and the threaded column is connected to the worm through an adjustable belt assembly. Through the arrangement of the threaded column, the lifting box, the clamping assembly, the pair of threaded plates, the second electromagnet, the plug transmission assembly and the adjustable belt assembly, the oil at different heights can be sampled at one time, and the sampling efficiency is high.

[0004] In the above patent document, oil samples can be taken at different depths. When sampling oil samples at different depths, more impurities may gather at the part where the sampling port is extended, which will lead to inaccurate results when sampling the oil. If the oil samples at different depths are directly stirred to distribute the gathered impurities, the deposited impurities will flow to the top of the liquid due to liquid convection between the oil samples at different depths, and the sampling and analysis of the fuel will lose its meaning. Summary of the invention

[0005] The present invention provides a sustainable aircraft fuel sampling device, which aims to solve the problem of inaccurate sampling results when the fuel sampling device in the related art samples the fuel.

[0006] A sustainable aircraft fuel sampling device comprises a fixed cylinder and a plurality of sampling barrels arranged along the length direction of the fixed cylinder, and further comprises:

[0007] A sampling cover with upper and lower openings and in an annular shape, wherein the fixed tube is coaxially arranged with the sampling cover, a plurality of shielding components are arranged on the fixed tube along its length direction, a sampling bucket is arranged between two adjacent shielding components, each shielding component comprises a plurality of receiving grooves arranged along the circumference of the fixed tube, a rotating rod which can be sealedly connected to the receiving groove is provided on the receiving groove, and a foldable folding cloth is connected between the rotating rod and the receiving groove;

[0008] A driving assembly, the driving assembly is used to rotate the rotating rod to fit with the outer wall of an adjacent receiving groove so as to unfold the folded cloth. After the folded cloth is unfolded, a sampling space is formed between the upper and lower shielding parts, the inner wall of the sampling cover and the outer wall of the fixed cylinder. The sampling barrel is provided with a sampling tube located in the sampling space;

[0009] It also includes a stirring assembly installed on the sampling cover. The stirring assembly is provided in multiple groups and is respectively located in multiple sampling spaces. When the sampling cover rotates, the stirring assembly is driven to rotate to mix the fuel in the sampling space.

[0010] The beneficial effects of the present invention are as follows: by setting a shielding component, the sampling can divide the sampling space, and the fuel in the sampling space is mixed to avoid a large number of impurities at the sampling port. The data sampled after the fuel in the same sampling space is more accurate. At the same time, the fuel between the sampling spaces will not produce relative flow. The fuel of different depths can be sampled at one time, while ensuring that the sampling data can be compared, thereby improving the sampling efficiency and sampling accuracy.

[0011] Preferably, a sealing strip is provided between the rotating rod and the containing groove, and when the rotating rod contacts the containing groove, the rotating rod and the containing groove are sealed and connected; when the sampling device is placed in the fuel, the folded cloth does not contact the fuel, so as to prevent the folded cloth from introducing the fuel above into the sampling space below after being unfolded.

[0012] Preferably, the driving assembly includes a rotating shaft, a protrusion, a mounting ring and a driving groove. The rotating shaft is concentrically arranged with the fixed cylinder, the protrusion is fixedly arranged on the rotating rod, the mounting ring is slidably installed on the rotating shaft up and down, the driving groove is fixedly arranged on the mounting ring, and the protrusion is located in the driving groove; the rotating rod is driven to rotate by the driving assembly.

[0013] Preferably, an annular sliding groove is provided on the fixed cylinder, and a sliding block is fixedly provided at the bottom of the rotating rod, and the sliding block is slidably provided in the annular sliding groove, thereby providing a guiding function for the rotation of the rotating rod.

[0014] Preferably, the sampling barrel is concentrically sleeved on the outside of the rotating shaft and installed on the fixed cylinder, a plurality of rubber rings are fixedly arranged on the rotating shaft, a sampling tube extending into the sampling space is arranged at the bottom of the sampling barrel, the plurality of rubber rings are respectively in sealing contact with the inner walls of the plurality of sampling barrels, and the sampling barrel, the rotating shaft and the rubber rings form a piston; when the rotating shaft moves upward, the fuel is sucked into the sampling barrel.

[0015] Preferably, the stirring assembly includes a plurality of stirring rods arranged on the inner wall of the sampling cover. When the sampling cover rotates, the plurality of stirring rods are driven to rotate to mix the fuel in the sampling space. The stirring rods are arranged in a spiral shape in each sampling space, so that the fuel in each sampling space can be fully stirred.

[0016] Preferably, a mounting groove is provided on the inner wall of the sampling hood, and a stirring rod is rotatably arranged in the mounting groove. A torsion spring is installed between the stirring rod and the mounting groove, one end of the torsion spring is connected to the mounting groove, and the other end is connected to the stirring rod. A moving rod is provided in the sampling hood for sliding up and down, and when the moving rod moves upward, it pushes the stirring rod to rotate toward the fixed cylinder; the sampling hood is unfolded after being immersed in the fuel, so as to avoid the fuel at the top from being brought to the bottom by the stirring rod as much as possible.

[0017] By adopting the above technical solution, the beneficial effects of the present invention are as follows:

[0018] 1. By setting up multiple sampling tubes, the fuel at different depths in the fuel storage tank can be sampled at one time;

[0019] 2. When sampling, the sampling is divided into multiple sampling spaces, and the fuel in different sampling spaces is stirred. When sampling the fuel in the same sampling space, the data is more accurate;

[0020] 3. The folding cloth is in a folded state before entering the predetermined position and unfolded after entering the predetermined position, which can prevent the fuel above from being brought into the fuel below, thereby ensuring the accuracy of the sampling results. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic structural diagram of the sampling cover and the fixed tube of the present invention.

[0022] Figure 2 It is a schematic diagram of the structure inside the fixing cylinder of the present invention.

[0023] Figure 3 It is a schematic diagram of the structure of the shielding component of the present invention when viewed from above.

[0024] Figure 4 It is a schematic diagram of the top view of the folding cloth after it is unfolded.

[0025] Figure 5It is a schematic diagram of the structure of the driving assembly of the present invention.

[0026] Figure 6 It is a schematic structural diagram of the stirring assembly of the present invention.

[0027] Figure 7 It is a schematic diagram of the structure of the stirring assembly after it is unfolded.

[0028] Figure numerals: 1. Fixed cylinder; 2. Sampling barrel; 21. Rubber ring; 22. Sampling tube; 23. Guide groove; 3. Sampling cover; 4. Shielding component; 41. Receiving groove; 42. Rotating rod; 43. Folding cloth; 5. Driving assembly; 51. Rotating shaft; 52. Protrusion; 53. Mounting ring; 54. Driving groove; 55. Annular slide groove; 56. Slider; 6. Stirring assembly; 61. Stirring rod; 62. Mounting groove; 63. Moving rod; 64. Torsion spring. DETAILED DESCRIPTION

[0029] Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to be used to explain the present invention, but should not be understood as limiting the present invention.

[0030] like Figure 1-Figure 7 As shown, a sustainable aircraft fuel sampling device includes a fixed tube 1, a plurality of sampling barrels 2 arranged along the length direction of the fixed tube 1, a sampling cover 3, a plurality of shielding components 4, a driving component 5 for unfolding the shielding components 4, and a stirring component 6.

[0031] The fixed tube 1 is a cylindrical structure with a sealed bottom and an open top. The sampling barrel 2 is located in the fixed tube 1 . The sampling cover 3 is a cylindrical structure with upper and lower openings and is coaxially sleeved on the outside of the fixed tube 1 .

[0032] like Figure 3 and Figure 4 As shown, the shielding component 4 includes a fixed rod, a receiving groove 41, a rotating rod 42 and a folding cloth 43; a plurality of fixed rods are arranged along the circumference of the fixed cylinder 1, the fixed rods extend from the outer wall of the fixed cylinder 1 to the inner wall of the sampling cover 3 and contact the inner wall of the sampling cover 3, the receiving groove 41 extends from one end of the fixed rod to the other end along the length direction of the fixed rod, the rotating rod 42 rotates along the axis of the fixed cylinder 1, the rotating rod 42 and the receiving groove 41 are sealed together, when the rotating rod 42 rotates, it detaches from the receiving groove 41 and fits with the adjacent fixed rod, and a folding cloth 43 is connected between the rotating rod 42 and the receiving groove 41.

[0033] In a specific embodiment of the present invention, three fixing rods are provided, and correspondingly, three receiving grooves 41 are provided.

[0034] The fixed cylinder 1 is placed in the oil storage box to be sampled. After the fixed cylinder 1 is lowered to a suitable sampling position, the driving assembly 5 drives the rotating rod 42 to rotate, and the rotating rod 42 is disengaged from the accommodating groove 41 and rotated to fit the outer wall of the adjacent fixed rod. At this time, the folding cloth 43 is unfolded, and a sampling space is formed between the upper and lower shielding parts 4, the inner wall of the sampling cover 3 and the outer wall of the fixed cylinder 1. Different sampling spaces are formed between multiple shielding parts 4. The multiple sampling spaces are relatively independent. When the fuel in the sampling space is mixed, it can avoid mutual convection of fuel in different sampling spaces to affect the sampling results.

[0035] In a preferred embodiment of the present invention, a sealing strip is provided between the rotating rod 42 and the containing groove 41. When the rotating rod 42 contacts the containing groove 41, the rotating rod 42 and the containing groove 41 are sealed and connected. Before the folding cloth 43 is unfolded, it can avoid being soaked by fuel. The folding cloth 43 is unfolded after entering the designated position. It can avoid that the folding cloth 43 will guide the oil at the top to the bottom, causing deviation in the sampling result. When sampling is performed next time, a new folding cloth 43 can be replaced.

[0036] In a specific embodiment of the present invention, when the folding cloth 43 is unfolded, the overall structure is roughly fan-shaped. When the folding cloth 43 is folded, it is wavy and folded in the receiving groove 41. The folding cloth 43 is hard oil-proof paper. One end of the oil-proof paper is connected to the receiving groove 41, and the other end is connected to the rotating rod 42. When the rotating rod 42 rotates, the oil-proof paper is unfolded. After the sampling is completed, the rotating rod 42 rotates in the opposite direction to fold the oil-proof paper.

[0037] like Figure 3 and Figure 5 As shown, the driving assembly 5 includes a rotating shaft 51, a protrusion 52, a mounting ring 53 and a driving groove 54; the rotating shaft 51 is concentrically arranged with the fixed cylinder 1, the protrusion 52 is fixedly arranged on the rotating rod 42, the mounting ring 53 is slidably installed on the rotating shaft 51, the driving groove 54 is fixedly arranged on the mounting ring 53, and the protrusion 52 is located in the driving groove 54; when the folding cloth 43 is unfolded, the fixed cylinder 1 is fixed, the rotating shaft 51 rotates to rotate the mounting ring 53, the mounting ring 53 rotates to drive the driving groove 54 to rotate, the driving groove 54 drives the protrusion 52 to rotate, and then the rotating rod 42 is rotated until the rotating rod 42 rotates to contact the adjacent fixed rod to form a sampling space.

[0038] In a preferred embodiment of the present invention, an annular groove 55 is provided on the fixed cylinder 1, and a slider 56 is fixedly provided at the bottom of the rotating rod 42, and the slider 56 is slidably provided in the annular groove 55; when the rotating rod 42 rotates, the annular groove 55 provides a certain support and positioning effect for the sliding of the slider 56, so that the rotating rod 42 is more stable when rotating.

[0039] Preferably, the sampling barrel 2 is concentrically sleeved on the outside of the rotating shaft 51 and installed on the fixed barrel 1, a plurality of rubber rings 21 are fixedly arranged on the rotating shaft 51, a sampling tube 22 extending into the sampling space is arranged at the bottom of the sampling barrel 2, the plurality of rubber rings 21 are respectively in sealing contact with the inner walls of the plurality of sampling barrels 2, and the sampling barrel 2, the rotating shaft 51 and the rubber ring 21 form a piston. It should be noted that a guide groove 23 extending in the up-down direction is provided on the outer wall of the rotating shaft 51, and a guide block adapted to the guide groove 23 is fixedly arranged on the mounting ring 53; when sampling, the fixed barrel 1 is fixed, the rotating shaft 51 is raised to drive the rubber ring 21 to rise, and when the rubber ring 21 rises, the fuel in the sampling space is drawn into the sampling barrel 2, thereby completing the sampling work. After the sampling is completed, after the sampling device is taken out, the sampling tube 22 is sealed to avoid fuel oxidation. In other embodiments, an electromagnetic valve is provided on the sampling tube 22, and after the sampling is completed, the sampling tube 22 is sealed by the electromagnetic valve.

[0040] The sampling tube 22 is set at the bottom of the sampling barrel 2. When cleaning the sampling barrel 2, the cleaning liquid is pumped out multiple times to make the original fuel in the sampling barrel 2 as clean as possible to avoid fuel residue in the sampling barrel 2, thereby ensuring the accuracy of the next sampling result.

[0041] It should be noted that the rotating shaft 51 penetrates all the way to the sampling barrel 2 at the bottom, and the rotating shaft 51 is sealed and connected to the bottom wall of the sampling barrel 2 penetrated by it; the enclosed space formed between the outer wall of the rotating shaft 51, the inner wall of the sampling barrel 2 and the rubber ring 21, when the rotating shaft 51 slides upward to draw the fuel into the sampling barrel 2, the fuel is stored in the enclosed space.

[0042] like Figure 1 and Figure 6 As shown, the stirring assembly 6 includes a plurality of stirring rods 61 arranged on the inner wall of the sampling cover 3. When the fuel is stirred, the rotating shaft 51 is fixed, and the operator rotates the rotating sampling cover 3. When the sampling cover 3 rotates, the plurality of stirring rods 61 are driven to rotate to mix the fuel in the sampling space. The stirring rods 61 are arranged in a spiral in each sampling space, and when the fuel in the sampling space is mixed, the mixing is more uniform.

[0043] In order to prevent the stirring assembly 6 from pressing down the fuel above when the sampling device is placed in the fuel storage tank, resulting in inaccurate sampling results, when placing the sampling device, the stirring rod 61 is first placed in a vertical state to minimize the downward pressure on the fuel above. After the sampling device is placed in a suitable position, the stirring rod 61 is changed from a vertical state to a horizontal state, that is, it is rotated in the direction of the fixed cylinder 1 to stir the fuel.

[0044] Furthermore, a mounting groove 62 is provided on the inner wall of the sampling cover 3, and the stirring rod 61 is rotatably arranged in the mounting groove 62. A torsion spring 64 is installed between the stirring rod 61 and the mounting groove 62. One end of the torsion spring 64 is connected to the mounting groove 62, and the other end is connected to the stirring rod 61. A moving rod 63 is provided in the sampling cover 3 for sliding up and down. When the moving rod 63 moves up, it pushes the stirring rod 61 to rotate toward the fixed cylinder 1. It should be noted that the moving rod 63 runs through the top of the sampling cover 3. Before sampling, the operator pulls the moving rod 63. The moving rod 63 moves upward, and the moving rod 63 moves upward to push the stirring rod 61 to rotate. The initial position of the stirring rod 61 is in a vertical state and is located in the installation groove 62 under the torsional force of the torsion spring 64. When the moving rod 63 rotates the stirring rod 61, the stirring rod 61 overcomes the torsional force of the torsion spring 64 and rotates to a horizontal state, that is, the stirring rod 61 rotates in the direction of the fixed cylinder 1, and then the fixed cylinder 1 is fixed, and the stirring rod 61 is driven to rotate by rotating the sampling cover 3, thereby mixing the fuel in the sampling space.

[0045] The working principle of the present invention is as follows: when sampling the fuel, the sampling device is lowered into the fuel storage box. After the sampling barrel 2 is lowered to a suitable position, the fixed cylinder 1 is fixed, the rotating shaft 51 rotates, and the rotating shaft 51 drives the mounting ring 53 to rotate and then drives the rotating rod 42 to rotate. When the rotating rod 42 rotates to contact an adjacent fixed rod, the folded cloth 43 is unfolded, and a sampling space is formed between the upper and lower shielding components 4, the inner wall of the sampling cover 3 and the outer wall of the fixed cylinder 1. Then, the fuel in each sampling space is stirred by the stirring component 6. The fuels in different sampling spaces are isolated and will not flow relative to each other. The fuels in the same sampling space are mixed evenly. When sampling the fuel, the sampling result is more accurate. When the sampling device is lowered into the fuel storage tank, the folded cloth 43 is located in the receiving groove 41 to avoid contact with the fuel. This can avoid the sampling device from bringing the fuel at the top to the bottom during the lowering process, thereby ensuring the accuracy of the fuel sampling result.

[0046] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

Claims

1. A sustainable aircraft fuel sampling device, comprising a fixed cylinder and a plurality of sampling barrels arranged along the length direction of the fixed cylinder, characterized in that: Also includes: A sampling cover with upper and lower openings and in an annular shape, a fixed tube and the sampling cover are coaxially arranged, a plurality of shielding components are arranged on the fixed tube along its length direction, a sampling bucket is provided between two adjacent shielding components, each shielding component includes a plurality of receiving grooves arranged along the circumference of the fixed tube, a rotating rod that can be sealed and connected to the receiving groove is provided on the receiving groove, and a foldable folding cloth is connected between the rotating rod and the receiving groove; A driving assembly, the driving assembly is used to rotate the rotating rod to fit with the outer wall of an adjacent receiving groove so as to unfold the folded cloth. After the folded cloth is unfolded, a sampling space is formed between the upper and lower shielding parts, the inner wall of the sampling cover and the outer wall of the fixed cylinder. The sampling barrel is provided with a sampling tube located in the sampling space; It also includes a stirring assembly installed on the sampling cover, wherein the stirring assembly is provided in multiple groups and is respectively located in multiple sampling spaces, and when the sampling cover rotates, the stirring assembly is driven to rotate to mix the fuel in the sampling space; The driving assembly includes a rotating shaft, a protrusion, a mounting ring and a driving groove. The rotating shaft is concentrically arranged with the fixing cylinder. The protrusion is fixedly arranged on the rotating rod. The mounting ring is slidably mounted on the rotating shaft up and down. The driving groove is fixedly arranged on the mounting ring. The protrusion is located in the driving groove. The sampling barrel is concentrically sleeved on the outside of the rotating shaft and installed on the fixed cylinder. A plurality of rubber rings are fixedly arranged on the rotating shaft. A sampling tube extending into the sampling space is arranged at the bottom of the sampling barrel. The plurality of rubber rings are respectively in sealing contact with the inner walls of the plurality of sampling barrels. The sampling barrel, the rotating shaft and the rubber rings form a piston.

2. A sustainable aircraft fuel sampling device according to claim 1, characterized in that: A sealing strip is arranged between the rotating rod and the containing groove. When the rotating rod contacts the containing groove, the rotating rod and the containing groove are sealed and connected.

3. A sustainable aircraft fuel sampling device according to claim 1, characterized in that: When the folding cloth is folded, it is wavy and folded in the receiving groove. When the folding cloth is unfolded, it is a fan-shaped structure. The edge of the folding cloth is in contact with the sampling cover. The folding cloth is hard oil-proof paper. One end of the oil-proof paper is connected to the receiving groove, and the other end is connected to the rotating rod.

4. A sustainable aircraft fuel sampling device according to claim 1, characterized in that: An annular sliding groove is provided on the fixed cylinder, and a sliding block is fixedly provided at the bottom of the rotating rod, and the sliding block is slidably provided in the annular sliding groove.

5. A sustainable aircraft fuel sampling device according to any one of claims 1 to 4, characterized in that: The stirring assembly includes a plurality of stirring rods arranged on the inner wall of the sampling cover. When the sampling cover rotates, the plurality of stirring rods are driven to rotate to mix the fuel in the sampling space. The stirring rods are arranged in a spiral in each sampling space.

6. A sustainable aircraft fuel sampling device according to claim 5, characterized in that: An installation groove is provided on the inner wall of the sampling cover, and the stirring rod is rotatably arranged in the installation groove. A torsion spring is installed between the stirring rod and the installation groove, one end of the torsion spring is connected to the installation groove, and the other end is connected to the stirring rod. A moving rod is provided in the sampling cover for sliding up and down. When the moving rod moves up, it pushes the stirring rod to rotate toward the fixed cylinder.

Images