Risk grading and risk early warning method for fine connection pipe of refining device and related device

Abstract

The invention discloses a refining device small connection pipe risk grading and risk early warning method and a related device, and relates to the technical field of small connection pipe management, and the method comprises the steps: obtaining basic data and inspection detection data of a refining device small connection pipe, for each damage, determining a damage grade corresponding to the damage based on the detection data corresponding to the damage, based on the damage grades corresponding to all the damages, carrying out damage grading on the small connecting pipe and determining the damage grade of the small connecting pipe, and based on the grade of the pressure pipeline or the pressure container connected with the small connecting pipe and the damage grade of the small connecting pipe, carrying out risk grading on the small connecting pipe and determining the risk grade of the small connecting pipe; based on the risk level of the small connection pipe, risk early warning is performed on the small connection pipe, risk grading and risk early warning can be performed on the small connection pipe of the refining device, and the management pressure of a refining enterprise on the small connection pipe is greatly reduced.

Description

Technical Field

[0001] The present application relates to the technical field of small take-over management, and in particular to a risk classification and risk warning method for small take-overs of a refining device and related devices. Background Art

[0002] Refining equipment refers to the equipment used to complete the petroleum refining process, including fluid conveying equipment, heating equipment, heat exchange equipment and other equipment. Small pipes, also known as small-diameter pipes, refer to branch pipe structures such as tee pipes or cross pipes of DN40 or less, half-pipe joints, branch seats, open-hole welded pipes or open-hole reinforced pipes connected to the equipment body or main pipeline by welding. They are usually used to connect the equipment body or main pipeline with safety accessories, instruments (such as temperature instruments, pressure instruments, liquid level instruments, flow meters), vent valves, exhaust vent silencers, purge joints, sampling joints, etc., and generally refer to the branch pipes before the first valve after the branch. Small pipes have the characteristics of small diameter, thin wall thickness, and no or intermittent flow of the medium.

[0003] At present, the focus of supervision, management and inspection of special equipment such as pressure vessels and pressure pipelines in refining and chemical plants is on the equipment itself, while the small pipes with smaller diameters connected to pressure vessels and pressure pipelines are often neglected in the design, manufacturing, management, inspection and supervision. In the actual operation of refining and chemical plants, these small pipes are often the weak points where pressure vessels and pressure pipelines fail. Especially for some high-temperature, high-pressure, flammable and explosive pressure vessels and pressure pipelines, the failure and leakage of small pipes often become a major safety hazard. At present, many safety accidents caused by leakage of small pipes have occurred in refining and chemical enterprises, which have caused huge economic losses and casualties to refining and chemical enterprises. Refining and chemical enterprises have also attached importance to the management and inspection of small pipes. However, unlike pressure vessels and pressure pipelines, the number of small connecting pipes connected to them is several times or even dozens of times the number of pressure vessels and pressure pipelines themselves. Such a huge number has brought tremendous pressure to the management of refining enterprises. If all of them are managed according to unified requirements, not only the number of management personnel cannot meet the requirements, but the economic cost is also unbearable. Therefore, the management of small connecting pipes also needs to refer to equipment management, conduct risk classification, determine risk levels, and issue risk warnings based on risk levels.

[0004] Therefore, there is an urgent need for a technology that can perform risk classification and risk warning on small take-overs of refining and chemical equipment. Summary of the invention

[0005] The purpose of this application is to provide a method and related devices for risk classification and risk warning of small takeovers in a refining and chemical plant, which can perform risk classification and risk warning on small takeovers in a refining and chemical plant, greatly reducing the pressure on refining and chemical enterprises to manage small takeovers.

[0006] To achieve the above objectives, this application provides the following solutions:

[0007] In a first aspect, the present application provides a method for grading and early warning risks of small take-overs in a refinery, and the method for grading and early warning risks of small take-overs in a refinery comprises:

[0008] Obtaining basic data and inspection data of the fine pipes of the refinery; the basic data includes the grade of the pressure pipe or pressure vessel connected to the fine pipes; the inspection data includes the inspection data obtained by inspecting the damage of the fine pipes; the damage is the damage that may occur to the fine pipes;

[0009] For each of the damages, determining a damage level corresponding to the damage based on the detection data corresponding to the damage;

[0010] Based on the damage levels corresponding to all the damages, the small pipes are graded for damage, and the damage level of the small pipes is determined;

[0011] Based on the grade of the pressure pipe or pressure vessel to which the small pipe is connected and the damage grade of the small pipe, the small pipe is risk graded to determine the risk level of the small pipe;

[0012] Based on the risk level of small takeovers, risk warnings are issued for small takeovers.

[0013] In a second aspect, the present application provides a risk grading and risk warning device for small take-overs of a refinery, the risk grading and risk warning device for small take-overs of a refinery comprising:

[0014] The data acquisition module is used to obtain basic data and inspection data of the fine pipes of the refining device; the basic data includes the grade of the pressure pipe or pressure vessel connected to the fine pipes; the inspection data includes the inspection data obtained by inspecting the damage of the fine pipes; the damage is the damage that may occur to the fine pipes;

[0015] A risk assessment and classification module is used to determine, for each type of damage, the damage level corresponding to the damage based on the detection data corresponding to the damage; to classify the damage of the small connecting pipes based on the damage levels corresponding to all the damages, and to determine the damage level of the small connecting pipes; to classify the risks of the small connecting pipes based on the level of the pressure pipes or pressure vessels connected to the small connecting pipes and the damage level of the small connecting pipes, and to determine the risk level of the small connecting pipes;

[0016] The risk warning module is used to issue risk warnings for small takeovers based on their risk levels.

[0017] In a third aspect, the present application provides a computer device, including: a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the computer program to implement the above-mentioned risk classification and risk warning method for small takeovers of refining and chemical equipment.

[0018] In a fourth aspect, the present application provides a computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the above-mentioned method for grading and warning risks of small takeovers of refining and chemical equipment.

[0019] In a fifth aspect, the present application provides a computer program product, including a computer program, which, when executed by a processor, implements the above-mentioned risk classification and risk warning method for small takeovers of refining and chemical equipment.

[0020] According to the specific embodiments provided in this application, this application discloses the following technical effects:

[0021] The present application provides a method for risk grading and risk warning of small pipes in a refining and chemical plant and a related device, which obtains basic data and inspection data of small pipes in a refining and chemical plant, wherein the basic data includes the grade of the pressure pipe or pressure vessel to which the small pipe is connected, and the inspection data includes detection data obtained by detecting damage to the small pipe. For each type of damage, the damage grade corresponding to the damage is determined based on the detection data corresponding to the damage, and the damage grade of the small pipe is graded based on the damage grades corresponding to all the damages, and the damage grade of the small pipe is determined. Based on the grade of the pressure pipe or pressure vessel to which the small pipe is connected and the damage grade of the small pipe, the small pipe is risk graded, and the risk level of the small pipe is determined, and the risk grading process of the small pipe is completed. Based on the risk level of the small pipe, the small pipe is risk warned, and the risk warning process of the small pipe is completed. Therefore, the present application can perform risk grading and risk warning on small pipes in a refining and chemical plant, and greatly reduce the pressure on refining enterprises to manage small pipes. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0023] Figure 1 This is an application environment diagram of a risk classification and risk warning method for small takeover pipes in a refinery provided in Example 1 of the present application.

[0024] Figure 2A schematic flow chart of a method for grading and warning risks of small takeovers in a refinery provided in Example 1 of the present application.

[0025] Figure 3 A schematic diagram of the functional modules of a risk classification and risk warning device for small take-over pipes of a refinery provided in Example 2 of the present application.

[0026] Figure 4 A schematic diagram of the structure of a computer device provided in Example 3 of the present application. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0028] Example 1

[0029] The risk classification and risk warning method for small take-over pipes of a refinery provided in the embodiment of the present application can be applied to Figure 1 In the application environment shown. Among them, the terminal communicates with the server through the network. The data storage system can store the data that the server needs to process. The data storage system can be set up separately, integrated on the server, or placed on the cloud or other servers. The terminal can send the basic data and inspection and detection data of the fine pipe of the refining and chemical device to be processed to the server. After the server receives the basic data and inspection and detection data of the fine pipe of the refining and chemical device to be processed, for each type of damage, the server determines the damage level corresponding to the damage based on the detection data corresponding to the damage; based on the damage levels corresponding to all damages, the fine pipe is damaged and the damage level of the fine pipe is determined; based on the level of the pressure pipeline or pressure vessel connected to the fine pipe and the damage level of the fine pipe, the fine pipe is risk graded and the risk level of the fine pipe is determined; based on the risk level of the fine pipe, the risk warning of the fine pipe is issued. The server can feedback the obtained risk level and risk warning result to the terminal.

[0030] In addition, in some embodiments, the risk grading and risk warning method of small takeovers of refining and chemical equipment can also be implemented independently by a server or a terminal. For example, the terminal can directly process the basic data and inspection and detection data of the small takeovers of refining and chemical equipment to be processed, or the server can obtain the basic data and inspection and detection data of the small takeovers of refining and chemical equipment to be processed from the data storage system, and process the basic data and inspection and detection data of the small takeovers of refining and chemical equipment to be processed.

[0031] The terminal may be, but is not limited to, various desktop computers, laptops, smart phones, tablet computers, IoT devices, and portable wearable devices. The server may be implemented as an independent server or a server cluster consisting of multiple servers, or may be a cloud server.

[0032] like Figure 2 As shown, a method for risk classification and risk warning of small takeovers of a refinery is provided. The method is executed by a computer device, and specifically can be executed by a computer device such as a terminal or a server alone, or can be executed by a terminal and a server together. In the embodiment of the present application, the method is applied to Figure 1 Taking the server in the example as an example, the risk classification and risk warning method of small takeover of the refining device includes the following steps:

[0033] Step S1, obtaining basic data and inspection data of the fine connecting pipes of the refining device; the basic data includes the grade of the pressure pipe or pressure vessel connected to the fine connecting pipe; the inspection data includes the inspection data obtained by inspecting the damage of the fine connecting pipe; the damage is the damage that may occur to the fine connecting pipe.

[0034] Step S2: for each type of damage, determine the damage level corresponding to the damage based on the detection data corresponding to the damage.

[0035] Step S3, based on the damage levels corresponding to all the damages, the damage levels of the small connecting pipes are graded to determine the damage levels of the small connecting pipes.

[0036] Step S4, based on the grade of the pressure pipe or pressure vessel to which the small connecting pipe is connected and the damage grade of the small connecting pipe, the small connecting pipe is risk graded to determine the risk level of the small connecting pipe.

[0037] Step S5, based on the risk level of the small takeover, a risk warning is issued for the small takeover.

[0038] By implementing the above-mentioned steps S1 to S5, this embodiment can classify the risks of small take-overs in the refining and chemical equipment, determine the risk level, and make different risk warnings according to the risk level, thereby greatly reducing the pressure on the refining and chemical enterprise to manage the small take-overs, and improving the risk response speed of the small take-overs and the pertinence and effectiveness of the detection, thereby improving the stability of the operation of the small take-overs in the refining and chemical equipment and better serving the safety of the refining and chemical enterprise.

[0039] This embodiment mainly includes three parts: small takeover data collection, small takeover risk assessment and classification, and small takeover risk warning. The following is a detailed introduction to these three parts.

[0040] (I) Small-scale data collection

[0041] The data collection of small pipes mainly collects two parts of data, one part is the basic data of small pipes, and the other part is the inspection and detection data of small pipes. In S1, the basic data and inspection and detection data of the small pipes of the refining device are obtained. The basic data includes the grade of the pressure pipe or pressure vessel connected to the small pipe, and the inspection and detection data includes the detection data obtained by detecting the damage of the small pipe.

[0042] (1) Basic data

[0043] Basic data include the function of small pipes (such as used to transport media, etc.), pipe diameter, material, connected equipment level (i.e. the level of pressure pipes or pressure vessels connected to small pipes, the levels of pressure pipes are divided into GC1 and GC2, and the levels of pressure vessels are divided into Class I pressure vessels, Class II pressure vessels and Class III pressure vessels), operating temperature, operating pressure, internal media, commissioning date, routine maintenance, repair and renovation, etc. Basic data are mainly obtained from the design, installation, use, routine maintenance, repair and renovation of small pipes, mainly to help determine the risk level of small pipes in the subsequent risk assessment and classification of small pipes, to help find the same type of small pipes in the subsequent risk warning of small pipes, and to help find the data required for failure analysis of small pipes.

[0044] (2) Inspection and testing data

[0045] The damage types of small pipes in the refining unit are classified. For each type of damage, effective detection methods are used to obtain relevant detection data. The detection data of all damages constitute the inspection and testing data. The inspection and testing data will provide data support for the subsequent small pipe risk assessment and classification of small pipe damage.

[0046] Damage is damage that may occur to small pipes. This embodiment provides seven types of damage, including at least one of internal corrosion thinning, internal surface cracking, external surface cracking, external corrosion, corrosion under the external insulation layer, mechanical damage, and installation welding defects. When the small pipe has no insulation layer, the damage includes external corrosion. When the small pipe has an insulation layer, the damage includes corrosion under the external insulation layer. Of course, other types of damage can be set as needed, and this embodiment does not impose any restrictions on this. The corresponding detection method for each type of damage is as follows:

[0047] 1) Internal corrosion thinning

[0048] For internal corrosion thinning, ultrasonic thickness measurement, pulsed eddy current thickness measurement and other detection methods can be used to obtain detection data. At this time, the detection data can also be called internal corrosion thinning data, including the measured thickness of the inner wall of small pipes.

[0049] 2) Internal surface cracking

[0050] For internal surface cracking, detection methods such as radiographic testing (RT), phased array ultrasonic testing (PAUT), and digital radiographic testing (DR) can be used to obtain detection data. At this time, the detection data can also be called internal surface cracking defect data, including the results of whether small pipes have internal surface cracking defects.

[0051] 3) External surface cracking

[0052] For external surface cracking, magnetic particle testing (MT), penetrant testing (PT), alternating current electromagnetic field testing (ACFM) and other testing methods can be used to obtain test data. At this time, the test data can also be called external surface cracking defect data, including the results of whether small pipes have external surface cracking defects.

[0053] 4) External corrosion (no insulation layer)

[0054] For external corrosion, detection methods such as manual visual macroscopic inspection can be used to obtain detection data. At this time, the detection data can also be called external corrosion data. If the small pipe has an anti-corrosion layer, the external corrosion data includes the fall-off of the anti-corrosion layer. If the small pipe does not have an anti-corrosion layer, the external corrosion data includes the corrosion of the outer surface.

[0055] 5) Corrosion under external insulation layer

[0056] For corrosion under the external insulation layer, manual visual macroscopic inspection, infrared thermal imaging inspection and other inspection methods can be used to confirm the integrity of the insulation layer and obtain the damage condition of the insulation layer. At the same time, eddy current inspection and other inspection methods can be used to confirm the corrosion and thinning of the small pipe body under the insulation layer. If it is confirmed that the small pipe body is corroded and thinned, the insulation layer can be removed, and manual visual macroscopic inspection combined with ultrasonic thickness measurement and other inspection methods can be used to confirm the corrosion and thinning of the small pipe body under the insulation layer to obtain the corrosion condition of the body under the insulation layer. The damage condition of the insulation layer and the corrosion condition of the body under the insulation layer constitute the inspection data. At this time, the inspection data can also be called corrosion data under the external insulation layer.

[0057] 6) Mechanical damage

[0058] For mechanical damage, detection data can be obtained through detection methods such as manual visual macroscopic inspection. At this time, the detection data can also be called mechanical damage data, including whether there are mechanical damage defects in the small pipes and the types of mechanical damage defects. Common types of mechanical damage defects include irregular pits on the surface of small pipes, bending and deformation of small pipes, missing or deformed supports and hangers, etc. The supports and hangers are used to support the small pipes.

[0059] 7) Installation welding defects

[0060] Installation welding defects are mainly buried defects. For installation welding defects, detection data can be obtained through ultrasonic testing (UT), phased array ultrasonic testing (PAUT), radiographic testing (RT), digital radiographic testing (DR) and other detection methods. At this time, the detection data can also be called installation welding defect data, including whether there are installation welding defects in small pipes and the types of installation welding defects. Common types of installation welding defects include undercut, lack of fusion, and lack of penetration.

[0061] After obtaining the above two parts of data through small takeover data collection, the basic data and inspection and detection data are stored to provide data support for subsequent small takeover risk assessment and classification and small takeover risk warning.

[0062] (II) Small takeover risk assessment and classification

[0063] Based on the inspection data obtained from the small connecting pipe data collection, the inspection data collected based on different damage types are graded. This classification is only for the severity of the detected damage. The damage level of the small connecting pipe is determined by combining the damage levels corresponding to all damage types. The final risk level of the small connecting pipe is further determined by combining the level of the pressure vessel or pressure pipeline connected to the small connecting pipe, and the comprehensive risk classification of small connecting pipes is completed.

[0064] The risk assessment and classification of minor takeovers specifically includes the following three steps:

[0065] (1) For each type of damage, the damage level corresponding to the damage is determined based on the detection data corresponding to the damage, that is, Figure 2 Step S2 in .

[0066] (2) Based on the damage levels corresponding to all the damages, the damage level of the small pipes is graded to determine the damage level of the small pipes, that is, Figure 2 Step S3 in .

[0067] (3) Based on the grade of the pressure pipe or pressure vessel to which the small pipe is connected and the damage grade of the small pipe, the risk of the small pipe is graded and the risk level of the small pipe is determined. Figure 2 Step S4 in .

[0068] In S2, for each type of damage, the damage level corresponding to the damage is determined based on the detection data corresponding to the damage, specifically including:

[0069] (1) When the damage is internal corrosion thinning, the detection data corresponding to the damage is the measured thickness of the inner wall of the small pipe. At this time, the difference between the nominal wall thickness and the measured thickness of the small pipe is calculated, and the difference is the thinning amount. Then the ratio of the difference to the nominal wall thickness is calculated, and the annual corrosion rate of the small pipe is calculated based on the measured thickness. Specifically, the difference between the nominal wall thickness and the measured thickness of the small pipe is calculated, and then the ratio of the difference to the commissioning time of the small pipe (that is, the number of years from the commissioning date of the small pipe to the damage classification) is calculated to obtain the annual corrosion rate. If the ratio is less than the first preset ratio, or the annual corrosion rate is less than the first preset rate, the damage level corresponding to the damage is level 1; if the ratio is between the first preset ratio and the second preset ratio, or the annual corrosion rate is between the first preset rate and the second preset rate, the damage level corresponding to the damage is level 2; if the ratio is greater than the second preset ratio, or the annual corrosion rate is greater than the second preset rate, the damage level corresponding to the damage is level 3.

[0070] The first preset ratio may be 10%, the first preset rate may be 0.05 mm / year, the second preset ratio may be 20%, and the second preset rate may be 0.15 mm / year.

[0071] (2) When the damage is internal surface cracking, the test data corresponding to the damage is the result of whether there is an internal surface cracking defect. At this time, if the small pipe has been tested for internal surface cracking and no internal surface cracking defect is found, the damage level corresponding to the damage is level 1; if the small pipe has not been tested for internal surface cracking, the damage level corresponding to the damage is level 2; if the small pipe has been tested for internal surface cracking and an internal surface cracking defect is found, that is, cracks appear on the internal surface, the damage level corresponding to the damage is level 3.

[0072] (3) When the damage is external surface cracking, the inspection data corresponding to the damage is the result of whether there is an external surface cracking defect. At this time, if the small pipe has been inspected for external surface cracking and no external surface cracking defect is found, the damage level corresponding to the damage is Level 1; if the small pipe has not been inspected for external surface cracking, the damage level corresponding to the damage is Level 2; if the small pipe has been inspected for external surface cracking and an external surface cracking defect is found, the damage level corresponding to the damage is Level 3.

[0073] (4) When the damage is external corrosion, if the small pipe has an anti-corrosion layer, the inspection data corresponding to the damage is the shedding of the anti-corrosion layer. At this time, based on the shedding of the anti-corrosion layer, it is determined whether the anti-corrosion layer is intact, partially shedding or detached on a large scale. Specifically, partial shedding and large-scale shedding are distinguished based on the area ratio of the shedding area of ​​the anti-corrosion layer to the total area of ​​the anti-corrosion layer. When the area ratio is less than the preset area ratio, it is partial shedding. Otherwise, it is large-scale shedding. If the small pipe has undergone external corrosion inspection and the anti-corrosion layer is intact, the damage level corresponding to the damage is level 1; if the small pipe has not undergone external corrosion inspection, or the small pipe has undergone external corrosion inspection and the anti-corrosion layer has partially shedding, the damage level corresponding to the damage is level 2; if the small pipe has undergone external corrosion inspection and the anti-corrosion layer has shedding on a large scale, the damage level corresponding to the damage is level 3; If the small pipe does not have an anti-corrosion layer, the inspection data corresponding to the damage is the external surface corrosion condition. At this time, based on the external surface corrosion condition, it is determined whether the small pipe body is intact, slightly corroded or severely corroded. Specifically, slight corrosion and severe corrosion are distinguished based on the thickness ratio of the thinning amount of the small pipe body to the nominal wall thickness of the small pipe body. When the thickness ratio is less than the preset thickness ratio, it is slight corrosion, otherwise, it is severe corrosion. If the small pipe has undergone external corrosion detection and the small pipe body is intact, the damage level corresponding to the damage is level 1; if the small pipe has not undergone external corrosion detection, or the small pipe has undergone external corrosion detection and the small pipe body is slightly corroded, the damage level corresponding to the damage is level 2; if the small pipe has undergone external corrosion detection and the small pipe body is severely corroded, the damage level corresponding to the damage is level 3.

[0074] Among them, the preset area ratio and the preset thickness ratio can be manually determined based on experience.

[0075] (5) When the damage is corrosion under the external insulation layer, the test data corresponding to the damage are the insulation layer damage and the insulation layer body corrosion. At this time, the insulation layer is determined to be intact, slightly damaged or severely damaged based on the insulation layer damage. Specifically, if the insulation layer is not tightly covered due to the missing of local covering screws, or if there are local corrosion holes in the insulation layer, the insulation layer is slightly damaged. Otherwise, the insulation layer is severely damaged. Based on the insulation layer body corrosion, it is determined whether the small pipe body is intact, slightly corroded or severely corroded. Specifically, the difference between slight corrosion and severe corrosion is based on the ratio of the thinning amount of the small pipe body to the nominal wall thickness of the small pipe body. Severe corrosion, when the thickness ratio is less than the preset thickness ratio, it is slight corrosion, otherwise, it is severe corrosion. If the small pipe has been tested for corrosion under the external thermal insulation layer and the thermal insulation layer is intact and the small pipe body is intact, the damage level corresponding to the damage is 1; if the small pipe has not been tested for corrosion under the external thermal insulation layer, or the small pipe has been tested for corrosion under the external thermal insulation layer and the thermal insulation layer is slightly damaged or the small pipe body is slightly corroded, the damage level corresponding to the damage is 2; if the small pipe has been tested for corrosion under the external thermal insulation layer and the thermal insulation layer is severely damaged or the small pipe body is severely corroded, the damage level corresponding to the damage is 3.

[0076] (6) When the damage is mechanical damage, the detection data corresponding to the damage is whether there is a mechanical damage defect and the type of the mechanical damage defect. At this time, if the small connecting pipe has been subjected to mechanical damage detection and no mechanical damage defect is found, the damage level corresponding to the damage is level 1; if the small connecting pipe has not been subjected to mechanical damage detection, or the small connecting pipe has been subjected to mechanical damage detection and the type of the mechanical damage defect that exists is not the first preset type, and the mechanical damage defect that exists at this time is a mechanical damage defect that does not affect safe operation, then the damage level corresponding to the damage is level 2; if the small connecting pipe has been subjected to mechanical damage detection and the type of the mechanical damage defect that exists is the first preset type, and the mechanical damage defect that exists at this time is a serious mechanical damage defect that affects safe operation, then the damage level corresponding to the damage is level 3.

[0077] Among them, the first preset type is bending, deformation, cracking, pitting, missing supports and damaged supports.

[0078] (7) When the damage is an installation welding defect, the inspection data corresponding to the damage is whether there is an installation welding defect and the type of the existing installation welding defect. At this time, if the small pipe has been inspected for installation welding defects and no installation welding defects are found, the damage level corresponding to the damage is level 1; if the small pipe has not been inspected for installation welding defects, or the small pipe has been inspected for installation welding defects and the type of the existing installation welding defect is not the second preset type, and the existing installation welding defect is an installation welding defect that does not affect safe operation, the damage level corresponding to the damage is level 2; if the small pipe has been inspected for installation welding defects and the type of the existing installation welding defect is the second preset type, and the existing installation welding defect is a serious installation welding defect that affects safe operation, the damage level corresponding to the damage is level 3.

[0079] Among them, the second preset type is undercut, lack of penetration and lack of fusion.

[0080] The injury grading process for various injury types is shown in Table 1 below.

[0081] Table 1 Damage classification of small pipe inspection

[0082]

[0083]

[0084] In Table 1, / represents or.

[0085] After obtaining the inspection and testing data of each damage type, perform inspection and testing damage grading for each damage type according to Table 1 above, and further determine the inspection and testing damage grading of small connecting pipes based on the inspection and testing damage grading results of each damage type. The specific determination method is as follows: when the damage grading result of a certain damage type sub-item inspection and testing of a small connecting pipe is level 3, the inspection and testing damage grading of the small connecting pipe is level 3; when the damage grading results of more than three damage type sub-item inspection and testing of a small connecting pipe are level 2, the inspection and testing damage grading of the small connecting pipe is level 3; when the damage grading results of one or two damage type sub-item inspection and testing of a small connecting pipe are level 2, the inspection and testing damage grading of the small connecting pipe is level 2; when the damage grading results of all damage type sub-item inspection and testing of a small connecting pipe are level 1, the inspection and testing damage grading of the small connecting pipe is level 1.

[0086] In S3, based on the damage levels corresponding to all the damages, the damage levels of the small pipes are graded to determine the damage levels of the small pipes, including:

[0087] (1) Determine whether there is a damage corresponding to a damage level of level 3, and obtain a first determination result.

[0088] (2) If the first judgment result is yes, the damage level of the small pipe is level 3.

[0089] (3) If the first judgment result is no, determine whether there are at least three injuries corresponding to the injury level 2, and obtain the second judgment result.

[0090] (4) If the second judgment result is yes, the damage level of the small pipe is level 3.

[0091] (5) If the second judgment result is no, determine whether there is one or two injuries corresponding to the injury level of level 2, and obtain a third judgment result.

[0092] (6) If the third judgment result is yes, the damage level of the small pipe is level 2.

[0093] (7) If the third judgment result is no, the damage level of the small pipe is level 1.

[0094] After determining the inspection and testing damage classification of small pipes, it is necessary to classify the risk of small pipes in combination with the level of the equipment connected to the small pipes, and finally determine the risk level of the small pipes, as shown in Table 2 below.

[0095] Table 2 Classification of risks of minor takeovers

[0096]

[0097] In S4, based on the grade of the pressure pipe or pressure vessel connected to the small pipe and the damage grade of the small pipe, the small pipe is risk graded to determine the risk level of the small pipe, including:

[0098] (1) If the thin pipe is connected to a pressure pipe, when the grade of the pressure pipe to which the thin pipe is connected is GC1, then if the damage grade of the thin pipe is level 1, the risk level of the thin pipe is medium risk; if the damage grade of the thin pipe is level 2, the risk level of the thin pipe is high risk; if the damage grade of the thin pipe is level 3, the risk level of the thin pipe is high risk; when the grade of the pressure pipe to which the thin pipe is connected is GC2, then if the damage grade of the thin pipe is level 1, the risk level of the thin pipe is low risk; if the damage grade of the thin pipe is level 2, the risk level of the thin pipe is medium risk; if the damage grade of the thin pipe is level 3, the risk level of the thin pipe is high risk.

[0099] (2) If the thin pipe is connected to a pressure vessel, when the level of the pressure vessel connected to the thin pipe is a Class I pressure vessel, at this time, if the damage level of the thin pipe is Level 1, the risk level of the thin pipe is low risk; if the damage level of the thin pipe is Level 2, the risk level of the thin pipe is low risk; if the damage level of the thin pipe is Level 3, the risk level of the thin pipe is medium risk; when the level of the pressure vessel connected to the thin pipe is a Class II pressure vessel, at this time, if the damage level of the thin pipe is Level 1, the risk level of the thin pipe is medium risk. The risk level is low risk; if the damage level of the thin pipe is level 2, the risk level of the thin pipe is medium risk; if the damage level of the thin pipe is level 3, the risk level of the thin pipe is high risk; when the pressure vessel connected by the thin pipeline is a Class III pressure vessel, at this time, if the damage level of the thin pipe is level 1, the risk level of the thin pipe is medium risk; if the damage level of the thin pipe is level 2, the risk level of the thin pipe is high risk; if the damage level of the thin pipe is level 3, the risk level of the thin pipe is high risk.

[0100] (III) Early warning of minor takeover risks

[0101] The risk warning of small takeovers is mainly for small takeovers that have been risk graded. Different risk levels are given different warning prompts and different warning processing measures. The warning prompts are used to indicate the risk level of small takeovers. The warning processing measures include corresponding detection strategies, as shown in Table 3 below.

[0102] Table 3 Early warning measures for different risk levels

[0103]

[0104]

[0105]

[0106] It should be noted that the user can replace or modify the warning processing measures in Table 3 as needed, and this embodiment does not impose any limitation on this.

[0107] In S5, based on the risk level of minor takeovers, risk warnings are issued for minor takeovers, including:

[0108] (1) If the risk level of a small takeover is low risk, a risk warning is issued for the small takeover, and a first warning prompt and a first warning treatment measure are output.

[0109] (2) If the risk level of the small take-over is medium risk, a risk warning is issued for the small take-over, a second warning prompt is output, and different second warning treatment measures are output based on the damage type.

[0110] (3) If the risk level of the small takeover is high risk, a risk warning is issued for the small takeover, a third warning prompt is output, and different third warning treatment measures are output based on the damage type.

[0111] The embodiment of the present application also provides an application scenario, which applies the above-mentioned risk grading and risk warning method for fine takeovers of refining and chemical equipment. Specifically, the risk grading and risk warning method for fine takeovers of refining and chemical equipment provided in this embodiment can be applied in risk warning scenarios. The risk warning scenario includes a data collection link, a data processing link, and a display link. The data collection link is used to obtain the basic data and inspection and detection data of fine takeovers of refining and chemical equipment. The data processing link is used to perform risk grading and risk warning on fine takeovers of refining and chemical equipment based on the basic data and inspection and detection data. The display link is used to show the risk level of fine takeovers of refining and chemical equipment and the corresponding warning prompts and warning processing measures to the user. The risk grading and risk warning method for fine takeovers of refining and chemical equipment provided in this embodiment belongs to the data processing link.

[0112] Example 2

[0113] Based on the same inventive concept, the embodiment of the present application also provides a refining device small take-over risk classification and risk warning device for implementing the above-mentioned refining device small take-over risk classification and risk warning method. The implementation scheme for solving the problem provided by the device is similar to the implementation scheme recorded in the above-mentioned method, so the specific limitations in the embodiment of the refining device small take-over risk classification and risk warning device provided below can be referred to the limitations of the refining device small take-over risk classification and risk warning method above, and will not be repeated here.

[0114] like Figure 3 As shown, a risk classification and risk warning device for small take-overs of a refinery is provided, and the risk classification and risk warning device for small take-overs of a refinery comprises:

[0115] The data acquisition module M1 is used to obtain basic data and inspection data of the fine pipes of the refining device; the basic data includes the grade of the pressure pipeline or pressure vessel connected to the fine pipe; the inspection data includes the inspection data obtained by detecting the damage of the fine pipe; the damage is the damage that may occur to the fine pipe.

[0116] The risk assessment and classification module M2 is used to determine, for each type of damage, the damage grade corresponding to the damage based on the detection data corresponding to the damage; to classify the damage of small connecting pipes based on the damage grades corresponding to all the damages, and determine the damage grade of the small connecting pipes; to classify the risks of small connecting pipes based on the grade of the pressure pipe or pressure vessel to which the small connecting pipes are connected and the damage grade of the small connecting pipes, and determine the risk level of the small connecting pipes.

[0117] The risk warning module M3 is used to issue risk warnings for small takeovers based on their risk levels.

[0118] Example 3

[0119] In an exemplary embodiment, a computer device is provided. The computer device may be a server or a terminal. The internal structure diagram thereof may be as follows: Figure 4 As shown. The computer device includes a processor, a memory, an input / output interface (Input / Output, referred to as I / O) and a communication interface. The processor, the memory and the input / output interface are connected through a system bus, and the communication interface is connected to the system bus through the input / output interface. The processor of the computer device is used to provide computing and control capabilities. The memory of the computer device includes a non-volatile storage medium and an internal memory. The non-volatile storage medium stores an operating system, a computer program and a database. The internal memory provides an environment for the operation of the operating system and the computer program in the non-volatile storage medium. The database of the computer device is used to store basic data and inspection and detection data of fine takeovers of a refining device. The input / output interface of the computer device is used to exchange information between the processor and an external device. The communication interface of the computer device is used to communicate with an external terminal through a network connection. When the computer program is executed by the processor, a risk grading and risk warning method for fine takeovers of a refining device is implemented.

[0120] Those skilled in the art will understand that Figure 4 The structure shown in the figure is only a block diagram of a part of the structure related to the solution of the present application, and does not constitute a limitation on the computer device to which the solution of the present application is applied. The specific computer device may include more or fewer components than those shown in the figure, or combine certain components, or have a different arrangement of components.

[0121] In an exemplary embodiment, a computer device is also provided, including: a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the computer program to implement the risk classification and risk warning method for small takeovers of refining equipment described in Example 1.

[0122] Example 4

[0123] An embodiment of the present application provides a computer-readable storage medium having a computer program stored thereon. When the computer program is executed by a processor, the method for grading and warning risks of small takeovers of a refining device as described in Embodiment 1 is implemented.

[0124] Example 5

[0125] An embodiment of the present application provides a computer program product, including a computer program, which, when executed by a processor, implements the method for grading and warning risks of small takeovers of a refinery device as described in Example 1.

[0126] It should be noted that the user information (including but not limited to user device information, user personal information, etc.) and data (including but not limited to data used for analysis, stored data, displayed data, etc.) involved in this application are all information and data authorized by the user or fully authorized by all parties, and the collection, use and processing of relevant data must comply with relevant regulations.

[0127] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0128] This article uses specific examples to illustrate the principles and implementation methods of this application. The description of the above embodiments is only used to help understand the method and core ideas of this application; at the same time, for those skilled in the art, according to the ideas of this application, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as limiting this application.

Claims

1. A method for grading and early warning risks of small pipe connections in a refinery, characterized in that: The risk classification and risk warning method of small takeovers of a refining and chemical unit includes: Obtaining basic data and inspection data of the fine pipes of the refinery; the basic data includes the grade of the pressure pipe or pressure vessel connected to the fine pipes; the inspection data includes inspection data obtained by inspecting damage to the fine pipes; the damage is damage that may occur to the fine pipes; For each of the damages, determining a damage level corresponding to the damage based on the detection data corresponding to the damage; Based on the damage levels corresponding to all the damages, the small pipes are graded for damage, and the damage level of the small pipes is determined; Based on the grade of the pressure pipe or pressure vessel to which the small pipe is connected and the damage grade of the small pipe, the small pipe is risk graded to determine the risk level of the small pipe; Based on the risk level of small takeovers, risk warnings are issued for small takeovers.

2. The method for risk classification and risk warning of small pipe connections in a refinery according to claim 1, characterized in that: The damage includes at least one of internal corrosion thinning, internal surface cracking, external surface cracking, external corrosion, corrosion under external insulation layer, mechanical damage and installation welding defects.

3. The method for risk classification and risk warning of small pipe connections in a refinery according to claim 2 is characterized in that: For each of the damages, based on the detection data corresponding to the damage, determining the damage level corresponding to the damage, specifically includes: When the damage is internal corrosion thinning, the detection data corresponding to the damage is the measured thickness of the inner wall of the small pipe. At this time, the difference between the nominal wall thickness of the small pipe and the measured thickness is calculated, the ratio of the difference to the nominal wall thickness is calculated, and the annual corrosion rate of the small pipe is calculated based on the measured thickness. If the ratio is less than the first preset ratio, or the annual corrosion rate is less than the first preset rate, the damage level corresponding to the damage is level 1; if the ratio is between the first preset ratio and the second preset ratio, or the annual corrosion rate is between the first preset rate and the second preset rate, the damage level corresponding to the damage is level 2; if the ratio is greater than the second preset ratio, or the annual corrosion rate is greater than the second preset rate, the damage level corresponding to the damage is level 3; When the damage is internal surface cracking, the detection data corresponding to the damage is the result of whether there is an internal surface cracking defect. At this time, if the small pipe has been tested for internal surface cracking and no internal surface cracking defect is found, the damage level corresponding to the damage is level 1; if the small pipe has not been tested for internal surface cracking, the damage level corresponding to the damage is level 2; if the small pipe has been tested for internal surface cracking and an internal surface cracking defect is found, the damage level corresponding to the damage is level 3; When the damage is external surface cracking, the detection data corresponding to the damage is the result of whether there is an external surface cracking defect. At this time, if the small pipe has been tested for external surface cracking and no external surface cracking defect is found, the damage level corresponding to the damage is level 1; if the small pipe has not been tested for external surface cracking, the damage level corresponding to the damage is level 2; if the small pipe has been tested for external surface cracking and an external surface cracking defect is found, the damage level corresponding to the damage is level 3; When the damage is external corrosion, if the small pipe has an anti-corrosion layer, the detection data corresponding to the damage is the shedding of the anti-corrosion layer. At this time, based on the shedding of the anti-corrosion layer, determine whether the anti-corrosion layer is intact, partially shedding or detached on a large scale. If the small pipe has undergone external corrosion detection and the anti-corrosion layer is intact, the damage level corresponding to the damage is level 1; if the small pipe has not undergone external corrosion detection, or the small pipe has undergone external corrosion detection and the anti-corrosion layer has partially shedding, the damage level corresponding to the damage is level 2; if the small pipe has undergone external corrosion detection and the anti-corrosion layer has shedding on a large scale, the damage level corresponding to the damage is level 3. ; If the small pipe does not have an anti-corrosion layer, the detection data corresponding to the damage is the external surface corrosion condition. At this time, based on the external surface corrosion condition, it is determined whether the small pipe body is intact, slightly corroded or severely corroded. If the small pipe has undergone external corrosion detection and the small pipe body is intact, the damage level corresponding to the damage is level 1; if the small pipe has not undergone external corrosion detection, or the small pipe has undergone external corrosion detection and the small pipe body is slightly corroded, the damage level corresponding to the damage is level 2; if the small pipe has undergone external corrosion detection and the small pipe body is severely corroded, the damage level corresponding to the damage is level 3; When the damage is corrosion under the external thermal insulation layer, the detection data corresponding to the damage is the damage condition of the thermal insulation layer and the corrosion condition of the body under the thermal insulation layer. At this time, based on the damage condition of the thermal insulation layer, determine whether the thermal insulation layer is intact, slightly damaged or seriously damaged, and based on the corrosion condition of the body under the thermal insulation layer, determine whether the small pipe body is intact, slightly corroded or seriously corroded. If the small pipe has undergone corrosion under the external thermal insulation layer and the thermal insulation layer is intact and the small pipe body is intact, then the damage level corresponding to the damage is level 1; if the small pipe has not undergone corrosion under the external thermal insulation layer, or the small pipe has undergone corrosion under the external thermal insulation layer and the thermal insulation layer is slightly damaged or the small pipe body is slightly corroded, then the damage level corresponding to the damage is level 2; if the small pipe has undergone corrosion under the external thermal insulation layer and the thermal insulation layer is seriously damaged or the small pipe body is seriously corroded, then the damage level corresponding to the damage is level 3; When the damage is mechanical damage, the detection data corresponding to the damage is whether there is a mechanical damage defect and the type of the existing mechanical damage defect. At this time, if the small pipe has been subjected to mechanical damage detection and no mechanical damage defect is found, the damage level corresponding to the damage is level 1; if the small pipe has not been subjected to mechanical damage detection, or the small pipe has been subjected to mechanical damage detection and the type of the existing mechanical damage defect is not the first preset type, the damage level corresponding to the damage is level 2; if the small pipe has been subjected to mechanical damage detection and the type of the existing mechanical damage defect is the first preset type, the damage level corresponding to the damage is level 3; wherein the first preset type is bending, deformation, cracking, pitting, missing support and hanger brackets, and damaged support and hanger brackets; When the damage is an installation welding defect, the detection data corresponding to the damage is whether there is an installation welding defect and the type of the existing installation welding defect. At this time, if the small connecting pipe has been subjected to installation welding defect detection and no installation welding defect is found, the damage level corresponding to the damage is level 1; if the small connecting pipe has not been subjected to installation welding defect detection, or the small connecting pipe has been subjected to installation welding defect detection and the type of the existing installation welding defect is not the second preset type, the damage level corresponding to the damage is level 2; if the small connecting pipe has been subjected to installation welding defect detection and the type of the existing installation welding defect is the second preset type, the damage level corresponding to the damage is level 3; wherein the second preset type is undercut, incomplete penetration and lack of fusion.

4. The method for risk classification and risk warning of small pipe connections in a refinery according to claim 1, characterized in that: Based on the damage levels corresponding to all the damages, the damage level of the small pipe is graded to determine the damage level of the small pipe, specifically including: Determine whether there is an injury corresponding to the injury of level 3, and obtain a first determination result; If the first judgment result is yes, the damage level of the small pipe is level 3; If the first judgment result is no, then determine whether there are at least three injuries corresponding to the injury level 2, and obtain a second judgment result; If the second judgment result is yes, the damage level of the small pipe is level 3; If the second judgment result is no, then determine whether one or two of the injuries correspond to an injury level of level 2, and obtain a third judgment result; If the third judgment result is yes, the damage level of the small pipe is level 2; If the third judgment result is no, the damage level of the small pipe is level 1.

5. The method for risk classification and risk warning of small pipe connections in a refinery according to claim 1, characterized in that: Based on the grade of the pressure pipe or pressure vessel connected to the small pipe and the damage grade of the small pipe, the risk of the small pipe is graded to determine the risk level of the small pipe, including: If the thin pipe is connected to a pressure pipe, and the grade of the pressure pipe to which the thin pipe is connected is GC1, then if the damage grade of the thin pipe is 1, the risk level of the thin pipe is medium risk; if the damage grade of the thin pipe is 2, the risk level of the thin pipe is high risk; if the damage grade of the thin pipe is 3, the risk level of the thin pipe is high risk; when the grade of the pressure pipe to which the thin pipe is connected is GC2, then if the damage grade of the thin pipe is 1, the risk level of the thin pipe is low risk; if the damage grade of the thin pipe is 2, the risk level of the thin pipe is medium risk; if the damage grade of the thin pipe is 3, the risk level of the thin pipe is high risk; If the small pipe is connected to a pressure vessel, when the level of the pressure vessel connected to the small pipe is a Class I pressure vessel, at this time, if the damage level of the small pipe is Level 1, the risk level of the small pipe is low risk; if the damage level of the small pipe is Level 2, the risk level of the small pipe is low risk; if the damage level of the small pipe is Level 3, the risk level of the small pipe is medium risk; when the level of the pressure vessel connected to the small pipe is a Class II pressure vessel, at this time, if the damage level of the small pipe is Level 1, the risk level of the small pipe is medium risk. The risk level of the thin pipe is low risk; if the damage level of the thin pipe is level 2, the risk level of the thin pipe is medium risk; if the damage level of the thin pipe is level 3, the risk level of the thin pipe is high risk; when the pressure vessel connected by the thin pipe is a Class III pressure vessel, at this time, if the damage level of the thin pipe is level 1, the risk level of the thin pipe is medium risk; if the damage level of the thin pipe is level 2, the risk level of the thin pipe is high risk; if the damage level of the thin pipe is level 3, the risk level of the thin pipe is high risk.

6. The method for risk classification and risk warning of small pipe connections in a refinery according to claim 1, characterized in that: Based on the risk level of minor takeovers, risk warnings are issued for minor takeovers, including: If the risk level of a minor takeover is low risk, a risk warning is issued for the minor takeover, and a first warning prompt and a first warning treatment measure are output; If the risk level of the small pipe connection is medium risk, a risk warning is issued for the small pipe connection, a second warning prompt is output, and different second warning treatment measures are output based on the damage type; If the risk level of the small takeover is high risk, a risk warning is issued for the small takeover, a third warning prompt is output, and different third warning processing measures are output based on the damage type.

7. A risk classification and risk warning device for small pipe connections in a refinery, characterized in that: The risk classification and risk warning device for small takeovers of the refining and chemical unit includes: The data acquisition module is used to obtain basic data and inspection data of the fine pipes of the refining device; the basic data includes the grade of the pressure pipe or pressure vessel connected to the fine pipes; the inspection data includes the inspection data obtained by inspecting the damage of the fine pipes; the damage is the damage that may occur to the fine pipes; A risk assessment and classification module is used to determine, for each type of damage, the damage level corresponding to the damage based on the detection data corresponding to the damage; to classify the damage of the small connecting pipes based on the damage levels corresponding to all the damages, and to determine the damage level of the small connecting pipes; to classify the risks of the small connecting pipes based on the level of the pressure pipes or pressure vessels connected to the small connecting pipes and the damage level of the small connecting pipes, and to determine the risk level of the small connecting pipes; The risk warning module is used to issue risk warnings for small takeovers based on their risk levels.

8. A computer device comprising: A memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the computer program to implement the risk classification and risk warning method for small takeovers of a refinery according to any one of claims 1 to 6.

9. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the method for grading and early warning risks of small takeovers of a refinery device according to any one of claims 1 to 6 is implemented.

10. A computer program product, comprising a computer program, characterized in that When the computer program is executed by a processor, the method for grading and early warning risks of small takeovers of a refinery device according to any one of claims 1 to 6 is implemented.

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