A method for verifying the fluidity of a pipeline

Abstract

The present invention provides a method for verifying the fluidity of a pipeline, which relates to the technical field of pipeline verification. The verification method includes: obtaining the shape of the pipeline, determining fixed positions based on the shape of the pipeline; fixing multiple parts of a hose to each fixed position through fixing components so that the shape of the hose is consistent with the shape of the pipeline; introducing a fluid into one end of the hose, obtaining the flow data of the fluid, and judging whether the fluidity of the pipeline meets the requirements according to the flow data. By adjusting the shape of the hose to be consistent with the shape of the pipeline and using the hose to simulate the pipeline to verify the fluidity of the pipeline shape, the test accuracy is ensured, the test cost is reduced, and the verification period is shortened.

Description

Technical Field

[0001] The present invention relates to the technical field of pipeline verification, and particularly to a method for verifying the fluidity of a pipeline. Background Art

[0002] After the design of an automotive pipeline is completed, it is necessary to verify the performance of the pipeline. Currently, the verification of automotive pipeline design schemes is mainly divided into two stages. In the first stage, simulation analysis is carried out through software. In the second stage, a sample is made for testing. However, the sample is not plastic. When the scheme is optimized, a new sample needs to be made, and different samples are tested and verified, which increases the test cost and results in a long verification cycle. Summary of the Invention

[0003] The present invention provides a method for verifying the fluidity of a pipeline to solve the problem of how to reduce the test cost and shorten the verification cycle while ensuring the test accuracy.

[0004] An embodiment of the present invention provides a method for verifying the fluidity of a pipeline. The verification method includes: obtaining the shape of the pipeline, and determining the fixing positions based on the shape of the pipeline; fixing multiple parts of a hose at the respective fixing positions through a fixing component so that the shape of the hose is consistent with the shape of the pipeline; introducing a fluid into one end of the hose, obtaining the flow data of the fluid, and judging whether the fluidity of the pipeline meets the requirements according to the flow data.

[0005] Further, the fixing component includes a fixing member, and the fixing member includes a clamp and a sleeve with adjustable shape. The determining the fixing positions based on the shape of the pipeline includes: determining the bending positions of the pipeline and obtaining the bending angles; when the bending angle is greater than or equal to an angle threshold, confirming the first fixing positions of the pipeline; when the bending angle is less than the angle threshold, confirming the second fixing positions of the pipeline; the fixing multiple parts of the hose at the respective fixing positions through the fixing component includes: clamping the hose through the clamp and fixing multiple parts of the hose at the respective first fixing positions; clamping the hose through the sleeve, bending the hose, and fixing multiple parts of the hose at the respective second fixing positions.

[0006] Further, after the clamping the hose through the sleeve, bending the hose, and fixing multiple parts of the hose at the respective second fixing positions, the fixing multiple parts of the hose at the respective fixing positions through the fixing component further includes: determining the arc length of each bending position of the pipeline; when the arc length of the bending position is greater than the arc length of the sleeve, adding the fixing member to at least one side of the sleeve.

[0007] Further, the arc length of the bending position is greater than the arc length of the sleeve. Adding the fixing member to at least one side of the sleeve includes: when the arc length of the bending position is greater than or equal to twice the arc length of the sleeve, adding another sleeve to at least one side of the sleeve; when the arc length of the bending position is greater than the arc length of the sleeve and less than twice the arc length of the sleeve, adding another clamp to at least one side of the sleeve.

[0008] Further, after clamping the hose by the sleeve to bend the hose and fix multiple parts of the hose at each of the second fixing positions, the step of fixing multiple parts of the hose at each of the fixing positions by the fixing assembly further includes: determining the length between two adjacent fixing members; when the length is greater than a length threshold, adding a clamp between the two adjacent fixing members.

[0009] Further, the fixing assembly further includes a movable assembly and a support member. The steps of clamping the hose by the clamp to fix multiple parts of the hose at each of the first fixing positions, and clamping the hose by the sleeve to bend the hose and fix multiple parts of the hose at each of the second fixing positions include: connecting the clamp to the movable assembly, moving the clamp to each of the first fixing positions along the support member by the movable assembly, and fixing the hose by the clamp; connecting the sleeve to the movable assembly, moving the sleeve to each of the second fixing positions along the support member by the movable assembly, and fixing the hose by the sleeve.

[0010] Further, the movable assembly includes a sliding sleeve and a sliding rod, and the sliding sleeve is connected to the sliding rod. The steps of connecting the clamp to the movable assembly, moving the clamp to each of the first fixing positions along the support member by the movable assembly, and fixing the hose by the clamp, connecting the sleeve to the movable assembly, moving the sleeve to each of the second fixing positions along the support member by the movable assembly, and fixing the hose by the sleeve include: connecting the clamp to the sliding rod, moving the clamp to each of the first fixing positions along the support member by the sliding sleeve, and fixing the hose by the clamp; connecting the sleeve to the sliding rod, moving the sleeve to each of the second fixing positions along the support member by the sliding sleeve, and fixing the hose by the sleeve.

[0011] Further, the flow data includes an injection pressure. The step of introducing a fluid into one end of the hose, obtaining the flow data of the fluid, and determining whether the pipeline fluidity meets the requirements according to the flow data includes: introducing a fluid into one end of the hose, obtaining the injection pressure of the fluid, and determining whether the pipeline fluidity meets the requirements according to the injection pressure.

[0012] Further, the flow data further includes the flow rate. When introducing a fluid into one end of the hose and obtaining the flow data of the fluid, and determining whether the pipeline fluidity meets the requirements according to the flow data, it further includes: introducing the fluid into one end of the hose, obtaining the flow rate of the fluid, and determining whether the pipeline fluidity meets the requirements according to the flow rate.

[0013] An embodiment of the present invention further provides a method for testing the fluidity of a fuel pipeline. The testing method includes the above verification method. After determining whether the pipeline fluidity meets the requirements according to the flow data, and when it is determined that the pipeline fluidity meets the requirements, the testing method further includes: connecting the other end corresponding to one end of the hose to a fuel tank, introducing fuel into one end of the hose, obtaining the flow data of the fuel, and determining whether the pipeline fluidity meets the requirements according to the flow data.

[0014] An embodiment of the present invention provides a method for verifying the fluidity of a pipeline. The verification method includes: obtaining the shape of the pipeline, determining the fixed positions based on the shape of the pipeline; fixing multiple parts of the hose at each fixed position through a fixing component so that the shape of the hose is consistent with the shape of the pipeline; introducing a fluid into one end of the hose, obtaining the flow data of the fluid, and determining whether the pipeline fluidity meets the requirements according to the flow data. By determining the shape of the pipeline to be verified and fixing the hose into the same shape as the pipeline to be verified, the test accuracy is ensured. By conducting tests on the hose to obtain test data, the fluidity of the pipeline is determined. For pipelines of different shapes, there is no need to manufacture samples. Only by fixing the hose into the same shape as the pipeline to be verified can the test data of the pipeline with the corresponding shape be obtained, thereby determining the fluidity of the pipeline, reducing the test cost and shortening the verification period. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic flowchart of a method for verifying the fluidity of a pipeline provided by an embodiment of the present invention;

[0016] Figure 2 It is a schematic flowchart of another method for verifying the fluidity of a pipeline provided by an embodiment of the present invention;

[0017] Figure 3 It is a schematic flowchart of another method for verifying the fluidity of a pipeline provided by an embodiment of the present invention;

[0018] Figure 4 It is a schematic flowchart of another method for verifying the fluidity of a pipeline provided by an embodiment of the present invention;

[0019] Figure 5 It is a schematic flowchart of another method for verifying the fluidity of a pipeline provided by an embodiment of the present invention;

[0020] Figure 6 Schematic flow chart of another method for verifying the pipeline fluidity provided by an embodiment of the present invention;

[0021] Figure 7 Schematic flow chart of another method for verifying the pipeline fluidity provided by an embodiment of the present invention;

[0022] Figure 8 Schematic flow chart of a method for testing the fluidity of a fuel pipeline provided by an embodiment of the present invention. Detailed implementation manners

[0023] In order to make the objectives, technical solutions and advantages of the present invention clearer and more understandable, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0024] In the various specific technical features described in the specific embodiments, without conflict, they can be combined in any suitable manner. For example, different embodiments and technical solutions can be formed by combining different specific technical features. To avoid unnecessary repetition, various possible combination methods of the specific technical features in the present invention will not be described separately.

[0025] In the following descriptions, the terms "first / second / ..." only distinguish different objects and do not indicate that there are the same or related relationships between the objects. It should be understood that the orientation descriptions "above", "below", "outside", "inside" are all orientations in the normal use state, and the "left" and "right" directions represent the left and right directions shown in the specific corresponding schematic diagrams, which may or may not be the left and right directions in the normal use state.

[0026] It should be noted that the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "including one..." does not exclude the existence of additional identical elements in the process, method, article or device including that element. The term "connection" includes both direct connection and indirect connection unless otherwise specified.

[0027] In a specific embodiment, this verification method is applicable to the verification of the fluidity of any pipeline in an automobile. Exemplarily, this verification method is applicable to the verification of the fluidity of an automobile fuel filling pipe to confirm the fuel filling performance, whether the filling is smooth, and whether there is backspray; Exemplarily, this verification method is applicable to the verification of the fluidity of an automobile air pipe to confirm the air ventilation performance and whether the air ventilation is smooth. For the convenience of description, hereinafter, this verification method is applicable to the verification of the fluidity of an automobile fuel filling pipe as an example to give an exemplary description of this verification method.

[0028] In some embodiments, as Figure 1 shown, Figure 1 a schematic flow chart of a verification method for the fluidity of a pipeline is provided. This verification method includes:

[0029] Step S1, obtain the shape of the pipeline and determine the fixing position based on the shape of the pipeline.

[0030] It should be emphasized that in this case, a flexible hose is used instead of a pipeline sample to verify the fluidity of the pipeline. The flexible hose can be understood as a pipeline that can deform. The specific material is not limited. The deformation here refers to the change in the structural shape of the flexible hose, specifically including the bending of the pipeline, etc. After the flexible hose is fixed and fluid is introduced, fluid-structure interaction will occur between the pipeline and the fluid, and the shape change caused by the fluid-structure interaction can be ignored.

[0031] Specifically, obtain the shape of the pipeline. The pipeline here is the pipeline to be verified. The pipeline includes liquid pipelines and gas pipelines, which are not limited here. The shape of the pipeline is mainly to determine the length of the pipeline and the position where the pipeline bends. The position where the pipeline bends includes the length of the pipeline bend and the angle of the pipeline bend. Any method that can obtain the shape of the pipeline meets the requirements of this case. Exemplarily, to reduce costs, the pipeline can be a three-dimensional graph drawn in simulation software. To more accurately determine the shape of the pipeline, the digital model pipeline is divided into multiple parts. The multiple parts include multiple straight parts and multiple bent parts. The software is used to obtain the data of the multiple straight parts and multiple bent parts of the pipeline, so as to determine the shape of the pipeline. After determining the shape of the pipeline, it is necessary to determine the fixing position of the pipeline. The fixing position here can be understood as fixing the flexible hose through the fixing position so that the shape of the flexible hose is the same as the shape of the pipeline to be tested. Exemplarily, the pipeline has 3 straight parts and 2 bent parts. Fixing positions are respectively set in the 3 straight parts and 2 bent parts. The straight part includes a straight part in the vertical direction. By setting the fixing position in the vertical direction, the flexible hose has a straight pipeline in the vertical direction. Different fixing positions are set for the 2 bent parts according to the length of the bend and the angle of the bend, so that the flexible hose generates corresponding bends.

[0032] Step S2: Fix multiple parts of the hose at respective fixed positions through a fixing component so that the shape of the hose conforms to the shape of the pipeline.

[0033] Specifically, after determining the fixed positions based on the shape of the pipeline, fix the hose through the fixing component. Any device or structure capable of fixing the hose meets the requirements of this case. The specific fixed positions and the number of fixing components are determined according to the actual situation. If the pipeline structure is complex and there are many bending positions, multiple fixed positions and multiple fixing components need to be set to meet the structural requirements. Exemplarily, the fixing component is a buckle. For the straight part of the pipeline, the buckle can be used to fix at both ends of the straight part. For the bending part of the pipeline, multiple buckles can be set, and there is an included angle between adjacent buckles. The degree of the included angle is determined according to the actual bending angle of the pipeline. The hose is clamped by multiple buckles with included angles, causing the hose to generate corresponding bending so that the shape of the hose conforms to the shape of the pipeline. Exemplarily, for different fixed positions, the fixing components can be different. For the straight part of the pipeline, a straight buckle can be used. The position where the straight buckle is clamped with the hose is a straight line, which will not cause a change in the shape of the hose. For the bending part of the pipeline, a bending buckle can be used. The position where the bending buckle is clamped with the hose is a curve, which can adjust the bending angle of the hose so that the shape of the hose conforms to the shape of the pipeline. It should be noted that for different shapes of the pipeline and different fixed positions, the fixing component can flexibly adjust the fixed position, and the specific movement mode of the fixing component is not limited as long as the fixing component can reach the corresponding fixed position.

[0034] Step S3: Introduce fluid into one end of the hose, obtain the flow data of the fluid, and determine whether the pipeline fluidity meets the requirements according to the flow data.

[0035] Specifically, after fixing the shape of the hose to be consistent with the shape of the pipeline through the fixing component, the fluidity verification of the hose can be carried out. Fluid is introduced into one end of the hose. The other end of the hose can be not connected to any component, and the fluidity of the hose is tested by introducing fluid. The other end of the hose can also be connected to a component to test the fluidity of the system with the pipeline connected. For example, the other end of the hose is connected to a fuel tank to form a complete fuel filling system. Fuel is injected into one end of the hose, and the performance of the fuel filling system can be judged, whether the filling is smooth and whether there is reverse spraying. Whether the other end of the specific hose is connected to other components is not limited herein and can be determined according to the test requirements. Fluid is introduced into one end of the hose to obtain the flow data of the fluid, and whether the pipeline fluidity meets the requirements is judged according to the flow data. The specific flow data can include the injection pressure at one end of the hose and the outlet flow rate at the other end of the hose. The way of obtaining the flow data is not limited and can be determined according to the actual situation. Exemplarily, to obtain the pressure of the fluid in the hose, a pressure sensor can be set at the corresponding position inside the hose, and to obtain the flow rate of the fluid in the hose, a flow rate sensor can be set at the corresponding position of the hose. The fluidity of the hose is judged through the flow data, so as to know the fluidity of the pipeline.

[0036] An embodiment of the present invention provides a method for verifying the fluidity of a pipeline. The verification method includes: obtaining the shape of the pipeline, determining the fixing positions based on the shape of the pipeline; fixing multiple parts of the hose to each fixing position through a fixing component so that the shape of the hose is consistent with the shape of the pipeline; introducing fluid into one end of the hose, obtaining the flow data of the fluid, and judging whether the pipeline fluidity meets the requirements according to the flow data. By determining the shape of the pipeline to be verified and fixing the hose into the same shape as the pipeline to be verified, the test accuracy is guaranteed. Through the test verification of the hose, test data is obtained to determine the fluidity of the pipeline. For pipelines of different shapes, there is no need to make samples, and only the hose needs to be fixed into the same shape as the pipeline to be verified to obtain the test data of the pipeline with the corresponding shape, thereby determining the fluidity of the pipeline, reducing the test cost and shortening the verification period at the same time.

[0037] In some embodiments, as Figure 2 shown, Figure 2 a flowchart of another method for verifying the fluidity of a pipeline is provided. The difference between this verification method and Figure 1 the verification method provided is that Figure 1 in step S1 of

[0038] determining the fixing positions based on the shape of the pipeline includes:

[0039] Specifically, the bent position of the pipeline includes the length of the pipeline bend and the angle of the pipeline bend. After determining the bent position of the pipeline, in order to ensure the accuracy of the test, it is necessary to obtain the angle of the pipeline bend. Here, the angle of the pipeline bend is the angle of deflection of the pipeline along the straight extension direction. For example, if the pipeline deflects only once and the included angle between the two ends of the pipeline is 150 degrees, then the angle of deflection of the pipeline along the straight extension direction is 30 degrees, that is, the angle of the pipeline bend is 30 degrees. There is no requirement for the specific method of obtaining the pipeline bend angle, and it can be directly known through the digital model of the pipeline.

[0040] Step S12, when the bending angle is greater than or equal to the angle threshold, confirm the first fixed position of the pipeline; when the bending angle is less than the angle threshold, confirm the second fixed position of the pipeline.

[0041] Specifically, the fixed positions adopted for different bending angles are different. For pipelines with a small deflection angle, it is only necessary to set fixed positions at both ends of the bent position and in the middle area of the bent position. For pipelines with a large deflection angle, it is necessary to appropriately add fixed positions. In order to ensure the accuracy of the test, different fixed positions are determined for different bending angles. When the bending angle is greater than or equal to the angle threshold, confirm the first fixed position of the pipeline; when the bending angle is less than the angle threshold, confirm the second fixed position of the pipeline. Here, both the first fixed position and the second fixed position belong to the category of the pipeline bent position. The specific angle threshold of the bending angle can be determined according to the actual situation. For example, the angle threshold is 90 degrees. When the bending angle is greater than or equal to 90 degrees, determine the first fixed position of the pipeline; when the bending angle is less than 90 degrees, determine the second fixed position of the pipeline.

[0042] Figure 1 In step S2 in [], fixing multiple parts of the flexible hose to each fixed position through the fixing component includes:

[0043] Step S21, clamp the flexible hose through a fixture to fix multiple parts of the flexible hose to each first fixed position; clamp the flexible hose through a sleeve to bend the flexible hose and fix multiple parts of the flexible hose to each second fixed position.

[0044] Specifically, after determining the first fixed position or the second fixed position according to the bending angle of the pipeline, the hose is fixed at its respective corresponding position through a fixing component. The fixing component includes a fixing member, and the fixing member includes a clamp and a sleeve with adjustable shape. The clamp can be used to clamp the pipeline. For the determined first fixed position, a clamp is set at the first fixed position, and the hose is clamped by the clamp to fix multiple parts of the hose at each first fixed position. For the determined second fixed position, a sleeve with variable shape is set at the second fixed position. The sleeve with adjustable shape can be understood as having a structure capable of clamping and fixing the bent pipeline. For example, the sleeve has a corrugated pipe structure, and the bending angle of the corrugated pipe can be adjusted, thereby changing the bending angle of the hose. The hose is clamped by the sleeve, and multiple parts of the hose are fixed at their respective second fixed positions to make the hose have the same bending angle as the pipeline.

[0045] In some embodiments, as Figure 3 shown, Figure 3 a schematic flow chart of another method for verifying the pipeline fluidity is provided. The difference between this verification method and Figure 2 the verification method provided is that Figure 2 in step S2 of

[0046] fixing multiple parts of the hose at each fixed position through the fixing component further includes:

[0047] Step S22, determining the arc length of each bending position of the pipeline.

[0047] Specifically, after determining that each bending position is the first fixed position or the second fixed position, in order to prevent the hose from deforming during the test, so that the shape of the hose is different from the shape of the pipeline, the arc length of each bending position of the pipeline can be further determined. Each bending position is a separate arc length. Here, it is mainly to determine the arc length of the bending position at the second fixed position. The arc length is the length of the bending curve.

[0048] Step S23, when the arc length of the bending position is greater than the arc length of the sleeve, add a fixing member to at least one side of the sleeve.

[0049] Specifically, when the arc length of the bending position where the second fixed position is located is greater than the arc length of the sleeve, it means that the sleeve cannot completely wrap the hose that needs to be bent, which may cause the bending shape of the hose to be different from the bending shape of the pipeline. Therefore, a fixing member needs to be added to at least one side of the sleeve. At least one side includes one side and both sides. The added fixing member can be determined according to the actual situation. For example, add a sleeve or a clamp.

[0050] In some embodiments, as Figure 3 shown, Figure 3 in step S23 of

[0051] Step S231: The arc length at the bending position is greater than or equal to twice the arc length of the sleeve, and at least one more sleeve is added on at least one side of the sleeve; when the arc length at the bending position is greater than the arc length of the sleeve and less than twice the arc length of the sleeve, at least one more fixture is added on at least one side of the sleeve.

[0052] Specifically, in order to further improve the accuracy of the test, in the case where the arc length at the bending position exceeds the arc length of the sleeve, the arc length at the bending position is further refined. When the arc length at the bending position is greater than or equal to twice the arc length of the sleeve, at least one more sleeve is added on at least one side of the sleeve. It can be understood that when the arc length at the bending position exceeds twice the arc length of the sleeve, multiple sleeves can be set so that the sleeves can wrap the hose. The specific number of sleeves can be determined according to the actual length of the bending position. For example, if the arc length at the bending position is three times the arc length of the sleeve, three sleeves can be set to fix the hose. When the arc length at the bending position is greater than the arc length of the sleeve and less than twice the arc length of the sleeve, it can be fixed by adding fixtures, and there is no need to add sleeves to avoid waste of resources. Fixtures can be selected on either one or both sides of the sleeve according to requirements, and multiple fixtures can also be added according to the actual situation.

[0053] In some embodiments, as Figure 4 shown, Figure 4 a schematic flow chart of another method for verifying the pipeline fluidity is provided. The difference between this verification method and Figure 2 the verification method provided is that Figure 4 in step S2 of

[0054] fixing multiple parts of the hose at each fixing position through the fixing component further includes:

[0055] Step S24: Determine the length between two adjacent fixing members.

[0056] Specifically, after determining that each bending position is the first fixing position or the second fixing position, in order to prevent the hose from deforming during the test and considering that the hose will deform under the action of gravity, resulting in a difference in the shape of the hose from that of the pipeline, the length between two adjacent fixing members can be further determined. The length between two adjacent fixing members includes three cases. First, two fixtures are adjacent; second, a fixture is adjacent to a sleeve; third, two sleeves are adjacent. Here, the distance is the shortest straight-line distance between the two fixing members.

[0057] Specifically, considering the influence of gravity, the hose may sag under the action of gravity. When the length between two adjacent fixing members is less than or equal to the length threshold, the sagging phenomenon of the hose is not obvious, and the influence of gravity on the shape of the hose can be ignored here. When the length between two adjacent fixing members is greater than the length threshold, the sagging phenomenon of the hose is obvious, and the influence of the action of gravity needs to be considered. A clamp can be added between two adjacent fixing members to change the distance between the two adjacent fixing members. Especially when the hose needs to be fixed along a horizontal line perpendicular to the vertical direction, the deformation caused by the action of gravity is the most obvious, and the influence caused by gravity needs to be reduced by adding a clamp. The specific length threshold can be determined according to the actual situation. For example, when the adjacent fixing members are clamps, the length threshold is 20 cm. When the length between two adjacent clamps is greater than 20 cm, a clamp needs to be added between the two adjacent clamps.

[0058] In some embodiments, as Figure 5 shown, Figure 5 a schematic flow chart of another method for verifying the pipeline fluidity is provided. The difference between this verification method and Figure 2 the verification method provided is that Figure 5 in step S21 of

[0059] Step S211: Connect the clamp to the movable component. The movable component moves the clamp along the support member to each first fixing position, and fixes the hose through the clamp. Connect the sleeve to the movable component. The movable component moves the sleeve along the support member to each second fixing position, and fixes the hose through the sleeve.

[0060] Specifically, the hose is fixed at its respective corresponding positions through the fixing component. The fixing component further includes a movable component and a support member. The support member is used to provide a supporting force for the movable component. The specific structure of the support member is not required, and any structure that satisfies that the movable component can move relative to the support member meets the requirements. The movable component is used to drive the clamp or the sleeve to move along the support member to the corresponding fixing positions. Similarly, the structure of the movable component is not required either, as long as it can drive the clamp or the sleeve to move on the support member. Some movable components are connected to the clamp, and the movable component drives the clamp to move on the support member so that the clamp moves to each first fixing position, thereby fixing the hose at the first fixing position. Some movable components are connected to the sleeve, and the movable component drives the sleeve to move on the support member so that the sleeve moves to each second fixing position, thereby fixing the hose at the second fixing position.

[0061] In some embodiments, as Figure 5 shown, Figure 5 step S211 in

[0062] Step S2111: Connect the fixture to the slide bar. The sliding sleeve moves the fixture along the support member to each first fixed position, and fixes the hose through the fixture. Connect the sleeve to the slide bar. The sliding sleeve moves the sleeve along the support member to each second fixed position, and fixes the hose through the sleeve.

[0063] Specifically, the movable component is used to drive the fixture or the sleeve to move along the support member to the corresponding fixed positions. The movable component includes a sliding sleeve and a slide bar. The sliding sleeve is connected to the slide bar, and the sliding sleeve is connected to the support member. The slide bar can move relative to the support member along with the sliding sleeve. The slide bars of some of the movable components are connected to the fixture. The sliding sleeve drives the slide bar and the fixture along the support member to move the fixture to each first fixed position, so as to fix the hose at the first fixed position. In order to further improve the flexibility of the movement of the fixture, the fixture is movably connected to the slide bar. The slide bars of some of the movable components are connected to the sleeve. The sliding sleeve drives the slide bar and the sleeve along the support member to move the sleeve to each second fixed position, so as to fix the hose at the second fixed position. Similarly, in order to improve the flexibility of the movement of the sleeve, the sleeve is movably connected to the slide bar.

[0064] In some embodiments, as Figure 6 shown, Figure 6 provides a flow schematic diagram of another method for verifying the fluidity of a pipeline. The difference between this verification method and Figure 1 the provided verification method is that Figure 6 in step S3 of

[0065] injecting fluid into one end of the hose and obtaining the flow data of the fluid and judging whether the fluidity of the pipeline meets the requirements according to the flow data includes:

[0066] Specifically, after the shape of the hose is fixed to be the same as that of the pipeline through the fixing component, the fluidity verification of the hose can be carried out. The fluid flow data includes the injection pressure. The injection pressure is the pressure given to the fluid when injecting the fluid into the hose. When injecting fluid into one end of the hose, the corresponding injection pressure can be directly set. Within the specified injection pressure range, if the fluid can effectively flow inside the hose, it is judged that the fluidity of the hose meets the requirements. If the fluid can only effectively flow inside the hose beyond the specified injection pressure range, it is judged that the fluidity of the hose does not meet the requirements, so as to infer the fluidity of the pipeline through the hose.

[0067] In some embodiments, as Figure 7 shown, Figure 7 provides a flow schematic diagram of another method for verifying the fluidity of a pipeline. The difference between this verification method and Figure 1 the provided verification method is that Figure 7In step S3 of [[ID=]], fluid is introduced into one end of the hose, and the flow data of the fluid is obtained. Judging whether the pipeline fluidity meets the requirements based on the flow data includes:

[0068] Step S32, introduce fluid into one end of the hose, obtain the flow rate of the fluid, and judge whether the pipeline fluidity meets the requirements according to the flow rate.

[0069] Specifically, after the shape of the hose is fixed to be the same as that of the pipeline through the fixing component, the fluidity verification of the hose can be carried out. The fluid flow data includes the fluid outlet flow velocity. By setting a flow velocity sensor at the outlet position of the hose, if the flow velocity of the fluid meets the set requirements, it is judged that the fluidity of the hose meets the requirements; if the flow velocity of the fluid does not reach the set requirements, it is judged that the fluidity of the hose does not meet the requirements, so as to infer the fluidity of the pipeline through the hose.

[0070] In some embodiments, as Figure 8 shown, Figure 8 A flow schematic diagram of a test method for the fluidity of a fuel pipeline is provided. The difference between this test method and the Figure 1 verification method provided is that Figure 1 after judging whether the pipeline fluidity meets the requirements based on the flow data in step S3 of [[ID=]], and judging that the pipeline fluidity meets the requirements, the test method further includes:

[0071] Step S4, connect the other end corresponding to one end of the hose to the fuel tank, introduce fuel into one end of the hose, obtain the flow data of the fuel, and judge whether the pipeline fluidity meets the requirements according to the flow data.

[0072] Specifically, after judging that the pipeline fluidity meets the requirements based on the flow data, the performance of the fuel filling system can be further judged, whether the filling is smooth and whether there is backspray phenomenon. One end of the hose is the fuel injection port, and the other end of the hose is connected to the fuel tank to form a complete fuel filling system. The specific structure of the fuel tank is not limited and depends on the actual use situation. Inject fuel into the injection port of the hose, obtain the flow data of the fuel. The flow data of the fuel also includes the fuel injection pressure, the outlet flow velocity of the fuel pipeline, and the pressure inside the fuel tank. The acquisition methods of the fuel injection pressure and the outlet flow velocity of the fuel pipeline have been described above and will not be elaborated here. The pressure inside the fuel tank can be obtained by setting a pressure sensor inside the fuel tank. If the internal air pressure of the fuel tank is too high, it will cause the fuel pipeline filling to be unsmooth or even generate backspray phenomenon. If all the flow data of the fuel meet the requirements, it can be judged that the fuel filling system has fluidity; if all the flow data of the fuel do not meet the specified requirements, it means that the pipeline has fluidity, but the fuel filling system formed by connecting the pipeline and the fuel tank does not have fluidity, and the fuel tank structure or the pipeline structure can be adjusted accordingly.

[0073] The above are only the preferred embodiments of the present invention and are not intended to limit the protection scope of the present invention.

Claims

1. A method for verifying the fluidity of a pipeline, characterized in that, The verification method includes: Obtaining the shape of the pipeline and determining the fixed positions based on the shape of the pipeline; Fixing multiple parts of the hose at each of the fixed positions through a fixing component, so that the shape of the hose is consistent with the shape of the pipeline; Introducing fluid into one end of the hose, obtaining the flow data of the fluid, and judging whether the fluidity of the pipeline meets the requirements according to the flow data; The fixing component includes a fixing piece, and the fixing piece includes a clamp and a sleeve with adjustable shape. The determining the fixed positions based on the shape of the pipeline includes: Determining the bending positions of the pipeline and obtaining the bending angles; When the bending angle is greater than or equal to the angle threshold, confirming the first fixed position of the pipeline; when the bending angle is less than the angle threshold, confirming the second fixed position of the pipeline; The fixing multiple parts of the hose at each of the fixed positions through the fixing component includes: Clamping the hose through the clamp and fixing multiple parts of the hose at each of the first fixed positions; clamping the hose through the sleeve, bending the hose, and fixing multiple parts of the hose at each of the second fixed positions; The fixing component further includes a movable component and a support; The clamping the hose through the clamp and fixing multiple parts of the hose at each of the first fixed positions; clamping the hose through the sleeve, bending the hose, and fixing multiple parts of the hose at each of the second fixed positions includes: Connecting the clamp to the movable component, moving the clamp to each of the first fixed positions along the support through the movable component, and fixing the hose through the clamp. Connecting the sleeve to the movable component, moving the sleeve to each of the second fixed positions along the support through the movable component, and fixing the hose through the sleeve.

2. The verification method according to claim 1, wherein After the clamping the hose through the sleeve, bending the hose, and fixing multiple parts of the hose at each of the second fixed positions, the fixing multiple parts of the hose at each of the fixed positions through the fixing component further includes: Determining the arc length of each bending position of the pipeline; When the arc length of the bending position is greater than the arc length of the sleeve, adding the fixing piece to at least one side of the sleeve.

3. The verification method according to claim 2, characterized in that When the arc length of the bending position is greater than the arc length of the sleeve, adding the fixing piece to at least one side of the sleeve includes: When the arc length of the bending position is greater than or equal to 2 times the arc length of the sleeve, adding another sleeve to at least one side of the sleeve; when the arc length of the bending position is greater than the arc length of the sleeve and less than 2 times the arc length of the sleeve, adding another clamp to at least one side of the sleeve.

4. The verification method according to claim 1, characterized in that After the clamping the hose through the sleeve, bending the hose, and fixing multiple parts of the hose at each of the second fixed positions, the fixing multiple parts of the hose at each of the fixed positions through the fixing component further includes: Determining the length between two adjacent fixing pieces; When the length is greater than the length threshold, adding a clamp between two adjacent fixing pieces.

5. The verification method according to claim 1, characterized in that The movable component includes a sliding sleeve and a sliding rod, and the sliding sleeve is connected to the sliding rod; Connecting the fixture to the movable component, moving the fixture to each of the first fixed positions along the support member by the movable component, and fixing the hose by the fixture. Connecting the sleeve to the movable component, and moving the sleeve to each of the second fixed positions along the support member by the movable component, and fixing the hose by the sleeve includes: Connecting the fixture to the sliding rod, moving the fixture to each of the first fixed positions along the support member by the sliding sleeve, and fixing the hose by the fixture. Connecting the sleeve to the sliding rod, and moving the sleeve to each of the second fixed positions along the support member by the sliding sleeve, and fixing the hose by the sleeve.

6. The verification method according to claim 1, wherein The flow data includes injection pressure. Introducing fluid into one end of the hose, obtaining the flow data of the fluid, and judging whether the pipeline fluidity meets the requirements according to the flow data includes: Introducing fluid into one end of the hose, obtaining the injection pressure of the fluid, and judging whether the pipeline fluidity meets the requirements according to the injection pressure.

7. The verification method according to claim 1, wherein The flow data further includes flow rate. Introducing fluid into one end of the hose, obtaining the flow data of the fluid, and judging whether the pipeline fluidity meets the requirements according to the flow data further includes: Introducing fluid into one end of the hose, obtaining the flow rate of the fluid, and judging whether the pipeline fluidity meets the requirements according to the flow rate.

8. A test method for the fluidity of a fuel pipeline, characterized in that, The testing method includes the verification method according to any one of claims 1 to 7. After judging whether the pipeline fluidity meets the requirements according to the flow data, and judging that the pipeline fluidity meets the requirements, the testing method further includes: Connecting the other end corresponding to one end of the hose to the fuel tank, introducing fuel into one end of the hose, obtaining the flow data of the fuel, and judging whether the pipeline fluidity meets the requirements according to the flow data.

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