Storage tank deposition layer testing method and system, computer equipment and storage medium

Abstract

The invention discloses a storage tank deposition layer testing method and system, computer equipment and a storage medium, and relates to the technical field of storage tank detection, and the method comprises the steps: obtaining basic parameters of a storage tank, and determining a plurality of preset measurement points according to the basic parameters of the storage tank; collecting parameter data of multiple groups of media in the storage tank in the vertical direction between any preset measurement point and a preset position in a deposition layer of the storage tank until parameter data of multiple groups of media corresponding to each preset measurement point is obtained; and according to the parameter data of all the media, determining the parameter data of the deposition layer in the storage tank. According to the method, parameter data such as thickness distribution conditions of the deposition layer of the storage tank can be accurately determined, and data support is provided for cleaning and overhauling of the storage tank and application of a new detection technology.

Description

Background Art

[0002] Storage tanks are important storage containers in long-distance oil and gas pipeline systems. Due to the long storage time of the oil in the tanks, hydrocarbons, impurities and water will inevitably form a silt layer at the bottom of the tank. As the storage time increases, the silt will become more and more, and the thickness of the silt layer will increase, which will not only reduce the capacity of the tank, but also accelerate the corrosion rate of the tank bottom plate, seriously affecting the normal production and operation of the tank, and is not conducive to the application and implementation of new technologies. For example, an excessively thick silt layer will hinder the movement of the online detection robot for tank bottom plate defects. Therefore, it is necessary to understand the thickness and distribution of the tank silt layer to provide guarantees for the safe, efficient and economical operation of the tank.

[0003] At present, the main method for measuring the siltation layer of storage tanks is the tape measure method. The tape measure method is a point measurement, which is simple and intuitive, but has many human influence factors, low accuracy, and it is difficult to obtain the thickness and distribution of the entire siltation layer of the storage tank. Summary of the invention

[0004] The technical problem to be solved by the present invention is to address the deficiencies of the prior art and specifically provide a method, system, computer device and storage medium for testing the siltation layer of a storage tank, as follows:

[0005] 1) In the first aspect, the present invention provides a method for testing a siltation layer of a storage tank, and the specific technical scheme is as follows:

[0006] Obtain and determine multiple preset measurement points based on the basic parameters of the storage tank;

[0007] Collect multiple sets of parameter data of the medium in the storage tank along the vertical direction between any preset measuring point and a preset position in the siltation layer of the storage tank, until multiple sets of parameter data of the medium corresponding to each preset measuring point are obtained;

[0008] Based on the parameter data of all media, the parameter data of the sedimentation layer in the tank are determined.

[0009] The beneficial effects of a storage tank siltation layer testing method provided by the present invention are as follows:

[0010] It can accurately determine the parameter data of the siltation layer of the storage tank, such as thickness distribution, etc., and provide data support for the cleaning, maintenance and application of new detection technologies of the storage tank.

[0011] 2) In the second aspect, the present invention also provides a storage tank siltation layer testing system, and the specific technical scheme is as follows:

[0012] It includes a basic parameter collection module, a data acquisition module and a siltation layer parameter determination module;

[0013] The basic parameter collection module is used to: obtain and determine multiple preset measurement points based on the basic parameters of the storage tank;

[0014] The data acquisition module is used to collect multiple sets of parameter data of the medium in the storage tank along the vertical direction between any preset measurement point and a preset position in the siltation layer of the storage tank, until multiple sets of parameter data of the medium corresponding to each preset measurement point are obtained;

[0015] The siltation layer parameter determination module is used to determine the parameter data of the siltation layer in the storage tank according to the parameter data of all media.

[0016] 3) In a third aspect, the present invention further provides a computer device, comprising a processor coupled to a memory, wherein the memory stores at least one computer program, and the at least one computer program is loaded and executed by the processor so that the computer device implements any of the above-mentioned tank sedimentation layer testing methods.

[0017] 4) In a fourth aspect, the present invention further provides a computer-readable storage medium, in which at least one computer program is stored, and the at least one computer program is loaded and executed by a processor so that a computer implements any of the above-mentioned tank sedimentation layer testing methods.

[0018] It should be noted that the beneficial effects achieved by the technical solutions of the second to fourth aspects of the present invention and the corresponding possible implementation methods can be found in the above-mentioned technical effects of the first aspect and its corresponding possible implementation methods, and will not be repeated here. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Other features, objects and advantages of the present invention will become more apparent from the detailed description of non-limiting embodiments made with reference to the following drawings:

[0020] Figure 1 A schematic diagram of a flow chart of a method for testing a siltation layer in a storage tank according to an embodiment of the present invention;

[0021] Figure 2 The distribution diagram of the floating plate pillars of the external floating roof tank;

[0022] Figure 3 It is a plane distribution diagram of preset test points;

[0023] Figure 4 It is a structural schematic diagram of the floating plate support;

[0024] Figure 5 It is a structural schematic diagram of the floating plate support extraction device;

[0025] Figure 6 It is a structural schematic diagram of a medium parameter measurement sensor with a sealing cap;

[0026] Figure 7 Viscosity change for the first preset measuring point;

[0027] Figure 8 Density change for the first preset measurement point;

[0028] Fig. 9 This is a schematic diagram of the morphology distribution of the hard sedimentation layer of the external floating roof tank;

[0029] Fig.10 A schematic diagram of the stratification of the siltation layer of an external floating roof storage tank;

[0030] Fig.11 A schematic diagram for calculating the angle of a preset measuring point based on an escalator;

[0031] Fig.12 It is a schematic diagram of the top view structure of the vault tank;

[0032] Fig.13 It is a structural schematic diagram of a circular measuring cover;

[0033] Fig.14 It is a structural schematic diagram of a storage tank siltation layer testing system according to an embodiment of the present invention;

[0034] Fig.15 The figure is a schematic diagram of the structure of a computer device according to an embodiment of the present invention. DETAILED DESCRIPTION

[0035] In order to make the objectives, technical solutions and advantages of the present invention more clear, the embodiments of the present invention will be further described in detail below with reference to the accompanying drawings.

[0036] like Figure 1 As shown, a method for testing a siltation layer in a storage tank according to an embodiment of the present invention comprises the following steps:

[0037] S1. Obtain and determine multiple preset measurement points based on the basic parameters of the storage tank;

[0038] Among them, the basic parameters of the tank include the type of tank, tank height, liquid level height and diameter, etc. Then, the specific implementation process of S1 is as follows:

[0039] 1) When the storage tank is an external floating roof storage tank, the locations of multiple floating platform pillars 101 are selected from the external floating roof storage tank as preset measurement points, and the medium parameter measurement sensor is located in the casing 105 of the selected floating platform pillar 101.

[0040] When the tank type is an external floating roof tank, such as Figure 2As shown, the external floating roof storage tank is provided with a plurality of floating plate pillars 101 and a cabin manhole 102. Generally speaking, the plurality of floating plate pillars 101 are distributed in concentric circles with the middle point of the tank top of the external floating roof storage tank as the center. Generally, 40% to 60% of the total number of all floating plate pillars 101 of the external floating roof storage tank are selected as the number of preset measuring points, and the locations of the selected floating plate pillars 101 are used as preset measuring points. Moreover, the preset measuring points are distributed in concentric circles with the middle point of the tank top of the external floating roof storage tank as the center. It should be noted that the number and distribution method of the preset measuring points can also be adjusted and set according to actual conditions.

[0041] 2) When the storage tank is a dome tank, the dome tank is not provided with a floating plate support 101, but the dome tank is provided with a plurality of light-transmitting holes 123 and an oil-measuring hole 125, a manhole 122 and a breathing valve hole 124, such as Fig.12 As shown, the plurality of light-transmitting holes 123 are generally distributed in concentric circles with the middle point of the tank top of the dome tank as the center, and the locations of the plurality of holes can be selected from the plurality of light-transmitting holes 123 and one oil-measuring hole 125 as preset measurement points, and the preset measurement points are distributed in concentric circles with the middle point of the tank top of the dome tank as the center, and preferably, the locations of all the light-transmitting holes 123 and the oil-measuring hole 125 are used as preset measurement points. In another embodiment, the preset measurement points can be set according to actual conditions.

[0042] To facilitate subsequent data processing, the coordinates of each preset measurement point need to be determined, specifically by measuring or calculating based on drawing parameters. Specifically:

[0043] 1) Measurement method:

[0044] ① Such as Fig.11 As shown, the rotating escalator 121 on the tank top of the external floating roof tank is used as a reference. Specifically, the straight line along the extension direction of the rotating escalator 121 is defined as the X-axis, that is, the direction of 0° to 180°, and the direction perpendicular to the X-axis is defined as the Y-axis, that is, the direction of 90° to 270°. A preset measurement point close to the rotating escalator 121 is selected as the first preset measurement point, and the vertical distance L between the first preset measurement point and the X-axis is measured with a ruler. The distance from the first preset measurement point to the center of the external floating roof tank is the radius R of the external floating roof tank. The angle θ of the first preset measurement point can be calculated using the formula sinθ=L / R, and then the coordinates of the first preset measurement point can be obtained. Then, the coordinates of other preset measurement points can be determined using the concentric circle distribution law of the floating support 101 of the external floating roof tank. Among them, the angle θ of the first preset measurement point refers to: the angle between the line between the first preset measurement point and the center of the external floating roof tank and the X-axis.

[0045] ② Take the extension line that passes through the center point of any light-transmitting hole of the dome tank and is perpendicular to the arc tangent of the tank wall of the dome tank as the X-axis, that is, the direction of 0° to 180°, and the direction perpendicular to the X-axis is defined as the Y-axis, that is, the direction of 90° to 270°. Then, the coordinates of other light-transmitting holes are determined by the equidistant distribution law of light-transmitting holes, and the coordinates of the oil measuring hole can also be obtained by measurement.

[0046] 2) Calculation method based on drawing parameters:

[0047] ① The distribution angle of the floating platform support 101 of the external floating roof tank can be obtained through the design drawings of the external floating roof tank. The coordinates of any preset measurement point can be calculated directly based on the radius of the external floating roof tank and the distribution angle of the floating platform support 101, and then the coordinates of other preset measurement points can be determined using the concentric circle distribution law of the floating platform support 101.

[0048] ② The distribution angle of the light-transmitting holes 123 of the dome tank can be obtained through the design drawings of the dome tank, and the coordinates of any preset measurement point can be directly calculated based on the radius of the dome tank and the distribution angle of the light-transmitting holes 123, and then the coordinates of other preset measurement points can be determined using the concentric circle distribution law of the light-transmitting holes 123. According to the coordinates of the preset measurement points determined based on the light-transmitting holes 123 of the dome tank, the coordinates of the preset measurement points corresponding to the oil measuring hole 125 can be obtained.

[0049] S2. Collect multiple sets of parameter data of the medium in the storage tank along the vertical direction between any preset measurement point and a preset position in the siltation layer of the storage tank until multiple sets of parameter data of the medium corresponding to each preset measurement point are obtained. It can be understood that the preset position in the siltation layer of the storage tank is located in the vertical downward direction of any preset measurement point.

[0050] The medium in the tank specifically refers to: the liquid stored in the tank and the sludge in the silt layer, and the parameter data of the medium in the tank specifically includes: the density and viscosity of the liquid stored in the tank, and the density and viscosity of the sludge in the silt layer.

[0051] S3. Determine the parameter data of the siltation layer in the storage tank according to the parameter data of all media. A storage tank siltation layer testing method of this embodiment can accurately determine the parameter data of the siltation layer of the storage tank, such as thickness distribution, etc., and provide data support for the cleaning, maintenance and application of new detection technologies of the storage tank.

[0052] Optionally, in S2, between any preset measurement point and a preset position in the siltation layer of the storage tank, multiple sets of parameter data of the medium in the storage tank are collected along the vertical direction, including:

[0053] S20. After a medium parameter measurement sensor is placed at any preset measurement point, the medium parameter measurement sensor is controlled to move vertically to a preset position in the siltation layer of the storage tank, and during the movement, the medium parameter measurement sensor is controlled to collect multiple groups of parameter data of the medium in the storage tank.

[0054] Taking the first preset measurement point as an example, after the medium parameter measurement sensor is placed in the first preset measurement point, the medium parameter measurement sensor is immersed in the storage tank at a preset speed along the vertical direction until it reaches the bottom of the siltation layer of the storage tank or the hard part, that is, the preset position. It should be noted that, strictly speaking, the medium parameter measurement sensor needs to reach the bottom of the siltation layer of the storage tank, that is, the preset position is the bottom of the siltation layer of the storage tank, but in actual operation, since there may be a hard part at the bottom of the siltation layer, the medium parameter measurement sensor stops at the hard part and cannot reach the bottom of the siltation layer. Therefore, the preset position may also refer to the hard part. And during the movement, the medium parameter measurement sensor is controlled to collect multiple groups of parameter data of the medium in the storage tank according to the preset frequency. The parameter data of the medium includes the density and viscosity of the medium. Specifically, the parameter data of the medium includes: the density and viscosity of the liquid stored in the storage tank, and the density and viscosity of the silt in the siltation layer. After the measurement of the first preset measurement point is completed, the medium parameter measurement sensor is taken out, placed in the second preset measurement point, and repeated measurements are performed until the measurement of each preset measurement point is completed.

[0055] Optionally, the medium parameter measurement sensor is specifically a sensor including density measurement function and viscosity measurement function.

[0056] Optionally, the medium parameter measurement sensor is further provided with a second sealing cap 119, and a measuring probe 120 having density measurement function and viscosity measurement function is located below the second sealing cap 119. The second sealing cap 119 ensures the sealing of the storage tank during the test process, preventing volatile oil gas from escaping from the storage tank and air from entering the storage tank. Figure 6 shown.

[0057] The medium parameter measurement sensor returns the measured data through the scale cable 118, and the scale cable 118 is used to display the depth of the medium parameter measurement sensor immersed in the medium. According to the liquid level height of the storage tank and the depth displayed by the scale cable 118, the distance between the current measurement position and the bottom of the storage tank is calculated. Before placing the medium parameter measurement sensor at any preset measurement point, it also includes:

[0058] Stop the oil receiving and sending operations at the storage tank, and the measurement personnel take safety precautions, reach the top of the storage tank, and then place the medium parameter measurement sensor.

[0059] Optionally, after completing the measurement of each preset measurement point, the measurement personnel leave the storage tank, and the oil receiving and sending operations of the storage tank return to normal.

[0060] The floating platform support 101 includes a pad 104, a sleeve 105, a reinforcing plate 106, a pin 107, a column 108, a first sealing cap 109, a cover plate 110 and a handle 111. The medium parameter measurement sensor is located in the sleeve 105 of the floating platform support 101 of the external floating roof tank. Figure 4 shown.

[0061] Optionally, a floating plate support extraction device is also included, which includes: a universal wheel 112, a cross bar 113, a vertical bar 114, a diagonal bar 115, a reinforcing rod 116 and a hand chain hoist 117. The cross bar 113, the vertical bar 114 and the diagonal bar 115 form a cubic frame as the overall outline of the floating plate support extraction device. The universal wheel 112 is arranged at the bottom of the cubic frame to facilitate movement. The reinforcing rod 116 is arranged above the cubic frame. The reinforcing rod 116 is used to fix the hand chain hoist 117. The column 108 of the floating plate support 101 is extracted by the hand chain hoist 117, so that the medium parameter measurement sensor is placed in the sleeve 105 of the floating plate support 101, such as Figure 5 shown.

[0062] Among them, the universal wheel 112 at the bottom is the carrier for the floating platform support extraction device to move and fix; the horizontal bar 113, the vertical bar 114 and the diagonal bar 115 form a fixed frame, that is, a cubic frame, which is the outline of the floating platform support extraction device; a hand chain hoist 117 is fixed in the middle of the top reinforcement bar 116, and the hand chain hoist 117 is a labor-saving component for manually extracting the column 108 of the floating platform support 101. The height of the vertical bar 114 is greater than the height of the floating platform support 101, usually 4 to 6 meters, and the width of the horizontal bar 113 is usually 0.5 to 1.5 meters. The floating platform support extraction device can be pushed freely or fixed to a specified position.

[0063] The process of measuring using the floating plate support extraction device is as follows:

[0064] S10. After the surveyor arrives at the first preset measuring point of the external floating roof tank, he / she moves the floating plate support extraction device to the first preset measuring point.

[0065] S11 , using the hand chain hoist 117 to hook the handle 111 of the floating platform support 101 , and taking out the pin 107 of the floating platform support 101 .

[0066] S12, nitrogen is introduced into the sleeve 105 of the floating platform support 101 from the hole of the pin shaft 107, and specifically, it can be filled in through a nitrogen bottle to prevent the floating platform support 101 from colliding during the extraction process to avoid the danger of sparks.

[0067] S13, using the hand chain hoist 117 to extract the column 108 of the floating platform support 101, and after the column 108 of the floating platform support 101 is completely extracted, stop introducing nitrogen.

[0068] S14. A medium parameter measurement sensor is placed into the hole of the column 108 of the floating platform support 101. The medium parameter measurement sensor is immersed in the external floating roof tank at a preset speed and in the vertical direction, and multiple groups of parameter data of the medium in the tank are collected at a preset frequency until the bottom or hard part of the silt layer of the tank is reached, and the measurement is completed.

[0069] S15, take out the medium parameter measurement sensor, introduce nitrogen into the sleeve 105 of the floating platform support 101 from the hole of the pin shaft 107, use the hand chain hoist 117 to lower the column 108 of the floating platform support 101 until the column 108 recovers, stop introducing nitrogen, and insert the pin shaft 107.

[0070] S16, reaching the next preset measuring point, repeating the above steps until the measurement of each preset measuring point is completed.

[0071] Optionally, in S3, the parameter data of the siltation layer in the storage tank is determined according to the parameter data of all the media, including:

[0072] S30, based on the parameter data of all media, using a data fitting method to determine the parameter data of the siltation layer in the storage tank. Specifically, a surface fitting algorithm is used to fit the parameter data of all media to determine the parameter data of the siltation layer in the storage tank. The surface fitting algorithm is specifically: a spline surface algorithm, etc.

[0073] Embodiment 1, taking an external floating roof storage tank for storing crude oil with complete design drawings as an example, the present invention is described, including:

[0074] S101. The surveyor obtains the diameter of the external floating roof tank as 40100 mm and the height as 14345 mm. After consulting the design drawings of the external floating roof tank, the distribution of the floating plate support 101 of the external floating roof tank is obtained, such as Figure 2 For an external floating roof tank, the locations of 40% to 60% of all the floating platform pillars 101 of the external floating roof tank are usually selected as preset measurement points. In this example, 21 preset measurement points are selected. The plane distribution diagram of the 21 preset measurement points is shown in FIG. Figure 3 As shown, Figure 2 and Figure 3 In the figure, the reference numbers of the 21 preset measurement points are 1 to 21 respectively. Figure 2 The distribution of the floating platform pillars 101 is shown, and the coordinates of 21 preset measurement points are calculated as shown in Table 1.

[0075] Table 1:

[0076]

[0077] S102. After the surveyor arrives at the first preset measuring point of the external floating roof tank, the surveyor moves the floating plate support extraction device to the first preset measuring point.

[0078] S103 , using the hand chain hoist 117 to hook the handle 111 of the floating platform support 101 , and taking out the pin 107 of the floating platform support 101 .

[0079] S104, nitrogen is introduced into the sleeve 105 of the floating platform support 101 from the hole of the pin shaft 107, and specifically, it can be filled in through a nitrogen bottle to prevent the floating platform support 101 from colliding during the extraction process to avoid the danger of sparks.

[0080] S105, using the hand chain hoist 117 to extract the column 108 of the floating platform support 101, and after the column 108 of the floating platform support 101 is completely extracted, stop introducing nitrogen.

[0081] S106, inserting a medium parameter measurement sensor into the hole of the column 108 of the floating platform support 101 at the location of the first preset measurement point (the preset measurement point marked as 1 in the figure), immersing the medium parameter measurement sensor into the external floating roof storage tank at a preset speed and in a vertical direction, and collecting multiple sets of parameter data of the medium in the storage tank at a preset frequency until reaching the bottom or hard part of the siltation layer of the storage tank, and the measurement is completed;

[0082] S107, take out the medium parameter measurement sensor, and introduce nitrogen into the sleeve 105 of the floating platform support 101 at the location of the first preset measurement point from the hole of the pin shaft 107, and use the hand winch 117 to lower the column 108 of the floating platform support 101 at the location of the first preset measurement point until the column 108 is restored, stop introducing nitrogen, and insert the pin shaft 107.

[0083] S108, reaching the next preset measuring point, repeating the above steps until the measurement of each preset measuring point is completed.

[0084] S109. After the measurement of 21 preset measurement points is completed, the measurement personnel leave the external floating roof storage tank, so that the oil receiving and sending operations of the external floating roof storage tank return to normal.

[0085] S110, according to the parameter data of all media, a surface fitting algorithm such as a spline surface algorithm is used to fit the parameter data of all media, and the thickness and distribution of the siltation layer of the external floating roof storage tank are obtained, that is, the parameter data of the siltation layer in the storage tank is determined.

[0086] The floating support 101 is a device for supporting the floating roof of the external floating roof storage tank. The floating support 101 includes a pad 104, a sleeve 105, a reinforcing plate 106, a pin 107, a column 108, a first sealing cap 109, a cover plate 110 and a handle 111. The structure of the floating support 101 is as follows: Figure 4 The length of the floating platform support 101 inside the external floating roof tank is generally 1.8 m, and the floating platform support 101 is usually distributed in concentric circles with the center of the top floating roof of the external floating roof tank as the center.

[0087] like Figure 5 As shown, the floating platform support extraction device includes: a universal wheel 112, a cross bar 113, a vertical bar 114, a diagonal bar 115, a reinforcing rod 116 and a hand chain hoist 117. The cross bar 113, the vertical bar 114 and the diagonal bar 115 form a cubic frame as the overall outline of the floating platform support extraction device. The universal wheel 112 is arranged at the bottom of the cubic frame for easy movement. The reinforcing rod 116 is arranged above the cubic frame. The reinforcing rod 116 is used to fix the hand chain hoist 117. The column 108 of the floating platform support 101 is extracted by the hand chain hoist 117, so as to place the medium parameter measurement sensor in the sleeve 105 of the floating platform support 101. The floating platform support extraction device is made of aluminum alloy and is a cubic structure with a length of 1m, a width of 1m and a height of 4.5m. The hand chain hoist 117 can withstand a weight of 1T.

[0088] The medium parameter measurement sensor is also provided with a second sealing cap 119. A measuring probe 120 with density measurement function and viscosity measurement function is located below the second sealing cap 119. The medium parameter measurement sensor returns the measured data through a scaled cable 118. The scaled cable 118 is used to display the depth of the medium parameter measurement sensor immersed in the medium. According to the liquid level height of the storage tank and the depth displayed by the scaled cable 118, the distance between the current measurement position and the bottom of the storage tank is calculated. Figure 6 As shown, the second sealing cap 119 is funnel-shaped, the diameter of the upper edge of the second sealing cap 119 is slightly larger than the diameter of the scaled cable 118, which is 5.2 mm, and the diameter of the lower edge of the second sealing cap 119 is equivalent to the diameter of the floating plate support 101, which is 85 mm. The scaled cable 118 can freely pass through the opening of the second sealing cap 119. The second sealing cap 119 is made of rubber. The second sealing cap 119 ensures the sealing of the storage tank during the test to prevent volatile oil and gas from escaping from the storage tank and air from entering the storage tank.

[0089] After completing the measurement of 21 preset measurement points, the viscosity change and density change of each preset measurement point with the immersion depth are plotted. The immersion depth refers to the depth from the floating roof of the external floating roof tank into the external floating roof tank. For example, the viscosity change of the first preset measurement point (the preset measurement point marked as 1 in the figure) with the immersion depth is as follows: Figure 7As shown, the viscosity of the first preset measurement point (the preset measurement point marked with reference numeral 1) changes with the immersion depth as shown in FIG. Figure 8 As shown in the figure, the test results can be used to obtain the height of the tank bottom sediment, i.e., the siltation layer, corresponding to each preset measurement point, as well as the density and viscosity data of the sediment, i.e., the siltation layer, at different heights. Based on the height information, the surface fitting algorithm can be used to draw the morphological distribution of the siltation layer of the external floating roof tank. Based on the density or viscosity data, the surface fitting algorithm can be used to obtain the stratification of different types of siltation layers. Among them, the morphological diagram of the hard siltation layer is shown in the figure. Fig. 9 The schematic diagram of the stratification of the siltation layer is shown in Fig.10 shown.

[0090] Embodiment 2: The external floating roof storage tank for storing crude oil has a storage tank diameter of 50200 mm and a storage tank height of 15365 mm. If the design drawing of the external floating roof storage tank does not provide the angle distribution of the floating plate support 101, the angle of the floating plate support 101 is calculated in the following manner: Taking the rotating escalator 121 on the tank top of the external floating roof storage tank as a reference, the straight line where the extension direction of the rotating escalator 121 is located is defined as the X-axis, that is, the direction of 0° to 180°, and the direction perpendicular to the X-axis is defined as the Y-axis, that is, the direction of 90° to 270°. A preset measurement point A that is closer to the rotating escalator 121 is selected as the first preset measurement point, and a ruler is used to measure the vertical distance L from the preset measurement point A to the X-axis. The vertical distance L from the preset measurement point A to the external floating roof storage tank is measured by the ruler. The tank center distance of the top tank is the tank radius R. The angle of the preset measurement point A can be calculated using the formula sinθ=L / R. The angle of the preset measurement point A refers to: the angle between the line between the preset measurement point A and the center of the external floating roof tank and the X-axis, and then the coordinates of the preset measurement point A are obtained, and then the coordinates of other preset measurement points are determined using the concentric circle distribution law of the floating plate pillars 101. The angle between the floating plate pillars 101 is θ1=360° / N, where N is the number of floating roof pillars distributed in concentric circles. The angle of other preset measurement points B in the same circle is: θ2=a×θ1+θ, where a is the difference in the number of floating plate pillars 101 between the preset measurement point B and the preset measurement point A. The measurement calculation diagram is shown in Fig.11 As shown, θ1=360° / 18=20°, a=3θ2=60°+θ, θ2 represents the angle of the preset measuring point B, and the angle of the preset measuring point B refers to: the angle of the preset measuring point B refers to: the angle between the line between the preset measuring point B and the center of the external floating roof tank and the X-axis. The other measurement processes of the tank siltation layer are the same as those in Example 1.

[0091] Embodiment 3, taking a vault tank for storing crude oil with complete design drawings as an example, the present invention is described, including: a vault tank for storing crude oil, a schematic diagram of a top view of the structure is shown in FIG. Fig.12As shown, the tank top of the dome tank has three light holes 123 and one oil measuring hole 125, and is also provided with a manhole 122 and a breathing valve hole 124. The medium parameter measurement sensor is placed through the three light holes 123 and the oil measuring hole 125 to measure the thickness and distribution of the siltation layer of the dome tank. Among them, the diameter of the light hole 123 is 500 mm, the diameter of the oil measuring hole 125 is 150 mm, and the reference numbers of the preset measurement points at the positions of the three light holes and the oil measuring hole are 22 to 24 respectively. The coordinates of the positions of the three light holes and the oil measuring hole are shown in Table 2. The measurement process is as follows:

[0092] Table 2:

[0093]

[0094] S201. Stop the sending and receiving of oil products from the dome tank. The surveying personnel take safety precautions and reach the top of the dome tank.

[0095] S202, the measurement personnel arrive at the preset measurement point where the oil measuring hole 125 is located, open the cover of the oil measuring hole 125, and put in the medium parameter measurement sensor. The medium parameter measurement sensor is immersed in the dome tank at a certain speed and in the vertical direction, and the density, viscosity and other parameters of the medium in the dome tank are collected at a certain sampling frequency until the bottom of the siltation layer (i.e., the bottom of the dome tank) or the hard part is reached, and the measurement is completed.

[0096] S203, the measuring personnel arrive at a light-transmitting hole 123 near the oil-measuring hole 125, remove the cover plate 110 of the light-transmitting hole 123, and cover it with a circular measuring cover plate. The structure of the circular measuring cover plate is as follows: Fig.13 As shown, the annular measuring cover plate has a disk with a center hole, and a medium parameter measuring sensor is placed in the center hole of the annular measuring cover plate 110. The medium parameter measuring sensor is immersed in the vault tank at a certain speed and in a vertical direction, and the density, viscosity and other parameters of the medium in the vault tank are collected and stored at a certain sampling frequency until the bottom of the siltation layer (i.e., the bottom of the vault tank) or the hard part is reached, and the measurement ends.

[0097] S204 , reaching the next light-transmitting hole 123 , repeating S203 , and completing the measurement of the preset measurement points at the locations of the remaining two light-transmitting holes 123 .

[0098] S205. After completing the measurement at the four preset measurement points, the measurement personnel leave the dome tank, so that the oil receiving and sending operations of the dome tank return to normal.

[0099] The inner diameter of the center hole of the annular measuring cover plate is equivalent to the diameter of the second sealing cap 119 of the medium parameter measuring sensor. In this embodiment, the inner diameter of the center hole is 85 mm, and the outer radius of the annular measuring cover plate is ( Fig.13The outer radius of the ring in the figure is consistent with the diameter of the light-transmitting hole 123, which is 500 mm in this embodiment. The circular measuring cover plate can be made of materials such as acrylic plate.

[0100] Since the vault tank has relatively few preset measurement points, the siltation layer morphology is no longer fitted; however, this method still obtains more siltation layer information than the traditional tape measure measurement method.

[0101] The present invention can be used to test the siltation layer of a storage tank to obtain the thickness and distribution of the siltation layer of the storage tank, provide strong support for accurately evaluating the siltation layer condition at the bottom of the tank, as well as for the reasonable evaluation of auxiliary agents for cleaning the tank and the applicability analysis of the application of advanced detection technologies, which is beneficial to improving the use efficiency, safety and environmental protection of the storage tank.

[0102] In the above embodiments, although the steps are numbered S1, S2, etc., these are only specific embodiments given by the present invention. Those skilled in the art may adjust the execution order of S1, S2, etc. according to actual conditions, which is also within the protection scope of the present invention. It can be understood that in some embodiments, some or all of the above embodiments may be included.

[0103] like Fig.14 As shown, a storage tank siltation layer testing system 200 according to an embodiment of the present invention includes a basic parameter collection module 201, a data acquisition module 202 and a siltation layer parameter determination module 203;

[0104] The basic parameter collection module 201 is used to: obtain and determine a plurality of preset measurement points according to the basic parameters of the storage tank;

[0105] The data acquisition module 202 is used to: collect multiple sets of parameter data of the medium in the storage tank along the vertical direction between any preset measurement point and a preset position in the siltation layer of the storage tank, until multiple sets of parameter data of the medium corresponding to each preset measurement point are obtained;

[0106] The siltation layer parameter determination module 203 is used to determine the parameter data of the siltation layer in the storage tank according to the parameter data of all the media.

[0107] Optionally, in the above technical solution, the data acquisition module 202 is specifically used for:

[0108] After the medium parameter measurement sensor is placed at any preset measurement point, the medium parameter measurement sensor is controlled to move vertically to a preset position in the siltation layer of the storage tank, and during the movement, the medium parameter measurement sensor is controlled to collect multiple groups of parameter data of the medium in the storage tank.

[0109] Optionally, in the above technical solution, the medium parameter measurement sensor is a sensor including density measurement function and viscosity measurement function.

[0110] Optionally, in the above technical solution, optionally, a preset measurement point determination module is also included, and the preset measurement point determination module is used to: when the type of the storage tank is an external floating roof storage tank, select the locations of multiple floating platform pillars from the external floating roof storage tank as preset measurement points, and the medium parameter measurement sensor is located in the casing 105 of the selected floating platform pillar.

[0111] Optionally, in the above technical solution, the siltation layer parameter determination module 203 is specifically used for:

[0112] Based on the parameter data of all media, the parameter data of the siltation layer in the tank is determined by using the data fitting method.

[0113] It should be noted that the beneficial effects of the storage tank siltation layer testing system 200 provided in the above embodiment are the same as the beneficial effects of the above storage tank siltation layer testing method, which will not be described in detail here. In addition, when the system provided in the above embodiment realizes its functions, it only uses the division of the above functional modules as an example. In actual applications, the above functions can be assigned to different functional modules as needed, that is, the system can be divided into different functional modules according to actual conditions to complete all or part of the functions described above. In addition, the system and method embodiments provided in the above embodiment belong to the same concept, and the specific implementation process is detailed in the method embodiment, which will not be described in detail here.

[0114] like Fig.15 As shown, a computer device 300 according to an embodiment of the present invention includes a processor 320, the processor 320 is coupled to a memory 310, and the memory 310 stores at least one computer program 330, and the at least one computer program 330 is loaded and executed by the processor 320, so that the computer device 300 implements any of the above-mentioned tank siltation layer testing methods, specifically:

[0115] The computer device 300 may have relatively large differences due to different configurations or performances, and may include one or more processors 320 (Central Processing Units, CPU) and one or more memories 310, wherein at least one computer program 330 is stored in the one or more memories 310, and the at least one computer program 330 is loaded and executed by the one or more processors 320, so that the computer device 300 implements any of the tank siltation layer testing methods provided in the above embodiments. Of course, the computer device 300 may also have components such as a wired or wireless network interface, a keyboard, and an input and output interface for input and output, and the computer device 300 may also include other components for implementing device functions, which will not be described in detail here.

[0116] A computer-readable storage medium according to an embodiment of the present invention stores at least one computer program, and the at least one computer program is loaded and executed by a processor so that a computer implements any of the above-mentioned tank siltation layer testing methods.

[0117] Optionally, the computer-readable storage medium may be a read-only memory (ROM), a random access memory (RAM), a compact disc (CD-ROM), a magnetic tape, a floppy disk, an optical data storage device, and the like.

[0118] In an exemplary embodiment, a computer program product or a computer program is also provided, the computer program product or the computer program comprising computer instructions, the computer instructions being stored in a computer-readable storage medium. A processor of a computer device reads the computer instructions from the computer-readable storage medium, and the processor executes the computer instructions, so that the computer device performs any of the above-mentioned storage tank siltation layer testing methods.

[0119] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application are used to distinguish similar objects and represent the definition of a specific order or sequence. The order of use of similar objects can be interchanged where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than the order shown or described.

[0120] Those skilled in the art know that the present invention can be implemented as a system, method or computer program product. Therefore, the present disclosure can be specifically implemented in the following forms, namely: it can be complete hardware, it can be complete software (including firmware, resident software, microcode, etc.), or it can be a combination of hardware and software, which is generally referred to as "circuit", "module" or "system" herein. In addition, in some embodiments, the present invention can also be implemented in the form of a computer program product in one or more computer-readable media, and the computer-readable medium contains computer-readable program code.

[0121] Any combination of one or more computer-readable media may be used. A computer-readable medium may be a computer-readable signal medium or a computer-readable storage medium. A computer-readable storage medium may be, for example, but not limited to, an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, device, or device, or any combination thereof. More specific examples (a non-exhaustive list) of computer-readable storage media include: an electrical connection with one or more wires, a portable computer disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disk read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination thereof. In this document, a computer-readable storage medium may be any tangible medium containing or storing a program that may be used by or in conjunction with an instruction execution system, device, or device.

[0122] 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 method for testing a storage tank siltation layer, characterized in that: include: Obtain and determine multiple preset measurement points based on the basic parameters of the storage tank; Collecting multiple sets of parameter data of the medium in the storage tank along the vertical direction between any preset measuring point and a preset position in the siltation layer of the storage tank, until multiple sets of parameter data of the medium corresponding to each preset measuring point are obtained; Based on the parameter data of all media, the parameter data of the siltation layer in the storage tank are determined.

2. A method for testing a storage tank siltation layer according to claim 1, characterized in that: Between any preset measuring point and a preset position in the siltation layer of the storage tank, multiple sets of parameter data of the medium in the storage tank are collected along the vertical direction, including: After a medium parameter measurement sensor is placed at any of the preset measurement points, the medium parameter measurement sensor is controlled to move vertically to a preset position in the siltation layer of the storage tank, and during the movement, the medium parameter measurement sensor is controlled to collect multiple groups of parameter data of the medium in the storage tank.

3. A method for testing a storage tank siltation layer according to claim 2, characterized in that: The medium parameter measurement sensor is a sensor including density measurement function and viscosity measurement function.

4. A method for testing a storage tank siltation layer according to claim 2 or 3, characterized in that: Also includes: When the storage tank is an external floating roof storage tank, the locations of multiple floating platform pillars are selected from the external floating roof storage tank as preset measurement points, and the medium parameter measurement sensor is located in the casing of the selected floating platform pillar.

5. A method for testing a storage tank siltation layer according to any one of claims 1 to 3, characterized in that: Determine the parameter data of the siltation layer in the storage tank based on the parameter data of all media, including: Based on the parameter data of all media, the parameter data of the siltation layer in the storage tank is determined by using a data fitting method.

6. A storage tank siltation layer testing system, characterized in that: It includes a basic parameter collection module, a data acquisition module and a siltation layer parameter determination module; The basic parameter collection module is used to: obtain and determine multiple preset measurement points based on the basic parameters of the storage tank; The data acquisition module is used to collect multiple sets of parameter data of the medium in the storage tank along the vertical direction between any preset measurement point and a preset position in the siltation layer of the storage tank, until multiple sets of parameter data of the medium corresponding to each preset measurement point are obtained; The siltation layer parameter determination module is used to determine the parameter data of the siltation layer in the storage tank according to the parameter data of all media.

7. A storage tank siltation layer testing system according to claim 6, characterized in that: The data acquisition module is specifically used for: After a medium parameter measurement sensor is placed at any of the preset measurement points, the medium parameter measurement sensor is controlled to move vertically to a preset position in the siltation layer of the storage tank, and during the movement, the medium parameter measurement sensor is controlled to collect multiple groups of parameter data of the medium in the storage tank.

8. A storage tank siltation layer testing system according to claim 7, characterized in that: The medium parameter measurement sensor is a sensor including density measurement function and viscosity measurement function.

9. A computer device, characterized in that: The computer device includes a processor, the processor is coupled to a memory, at least one computer program is stored in the memory, and the at least one computer program is loaded and executed by the processor so that the computer device implements a tank sedimentation layer testing method as described in any one of claims 1 to 5.

10. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores at least one computer program, and the at least one computer program is loaded and executed by a processor so that a computer implements a method for testing a storage tank sedimentation layer as claimed in any one of claims 1 to 5.

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