Oil tank bottom corrosion detection device, detection method and medium

Abstract

The invention provides an oil tank bottom corrosion detection device which comprises an oil tank, and a first sampling point and a plurality of second sampling points are arranged at the bottom of the oil tank; the sampling module is provided with a first flange, a first sampling pipeline, a plurality of second sampling pipelines and a sampling pump, the first flange is arranged on the pipe wall of the oil tank, and one end of the first sampling pipeline penetrates through the first flange and is connected with the first sampling point; one ends of the plurality of second sampling pipelines penetrate through the first flange and are connected with the plurality of second sampling points, and the other ends of the first sampling pipelines and the second sampling pipelines are connected with the sampling pump; the detection module is connected with the sampling module; the backflow module is connected with the detection module; the control module is connected with the sampling module, the detection module and the backflow module. According to the technical scheme of the embodiment, the conditions of tank bottom oil and deposited water can be effectively monitored, the quality of the tank bottom oil is improved, and accumulated water at the tank bottom is greatly reduced.

Description

Technical Field

[0001] The invention relates to the technical field of oil tank anti-corrosion, and in particular to an oil tank bottom corrosion detection device, a detection method and a medium. Background Art

[0002] As the main carrier of oil reserves, the service life of vertical atmospheric pressure petrochemical storage tanks has attracted much attention. Although the design life of the storage tank is 20 to 40 years, the storage tank will corrode after a few years of service, which greatly reduces its life. Therefore, with the continuous increase in the scale and number of storage tanks, the leakage accidents caused by the corrosion of the storage tanks during the long-term storage of oil products will increase. Among the leakage accidents, there are many accidents caused by the corrosion of the bottom plate inside the storage tank. In addition, studies have shown that when the storage tank is severely corroded, the bottom plate of the tank will be perforated and damaged in only 3 to 4 years. Once the bottom plate of the storage tank is corroded and perforated, it will lead to the leakage of crude oil. Due to the small initial leakage, it is not easy to be found. The leaked oil can enter the underground, which will not only pollute the environment, but also cause fires and casualties as the amount of oil leakage accumulates. Summary of the invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention proposes an oil tank bottom corrosion detection device, an anti-corrosion method and a medium, which can effectively monitor the oil and sediment water conditions at the bottom of the tank, improve the quality of the oil at the bottom of the tank and greatly reduce the accumulated water at the bottom of the tank.

[0004] In a first aspect, an embodiment of the present invention provides an oil tank bottom corrosion detection device, comprising:

[0005] An oil tank, wherein a first sampling point and a plurality of second sampling points are arranged at the bottom of the oil tank, wherein the first sampling point is arranged at the center of the bottom of the tank, and the second sampling points are arranged around the bottom of the tank;

[0006] A sampling module, wherein the sampling module is provided with a first flange, a first sampling pipe, a plurality of second sampling pipes and a sampling pump, wherein the first flange is provided on the pipe wall of the oil tank, one end of the first sampling pipe passes through the first flange and is connected to the first sampling point, one end of a plurality of second sampling pipes passes through the first flange and is connected to a plurality of second sampling points, the other ends of the first sampling pipe and the second sampling pipe are both connected to the sampling pump, and the sampling module is used to extract the oil product at the bottom of the tank;

[0007] A detection module, the detection module is connected to the sampling module, and the detection module is used to detect the oil product;

[0008] A reflux module, the reflux module is connected to the detection module, and the reflux module is used to reflux the oil product after detection;

[0009] A control module is connected to the sampling module, the detection module and the reflux module respectively.

[0010] In some embodiments of the present invention, the detection module includes a conductivity sensor, a pH sensor and a buffer structure. The buffer structure is arranged at the outlet of the sampling module, the buffer structure is used to limit the flow of the oil product, the conductivity sensor is used to detect the conductivity of the oil product, and the pH sensor is used to detect the pH value of the oil product. The detected oil product is input into the oil tank through the reflux module.

[0011] In some embodiments of the present invention, the oil tank bottom corrosion detection device is also provided with a pretreatment module, and the pretreatment module is respectively connected to the sampling module and the detection module, and the detection module is also connected to the reflux module, and the pretreatment module is provided with a first filter and a diverter, one end of the diverter is connected to the first sampling pipeline and the second sampling pipeline, and the other end of the diverter is connected to the first filter, and the other end of the first filter is connected to one end of the sampling pump, and the other end of the sampling pump is connected to the reflux module, and the pretreatment module is used to filter impurities in the oil product.

[0012] In some embodiments of the present invention, the oil tank bottom corrosion detection device is also provided with an oil-water separation module, and the oil-water separation module is respectively connected to the detection module and the reflux module, and the oil-water separation module is provided with a coalescing filter and an oil-water separation tank, one end of the coalescing filter is connected to the pretreatment module, the other end of the coalescing filter is connected to one end of the oil-water separation tank, and the other end of the oil-water separation tank is connected to the reflux module.

[0013] In some embodiments of the present invention, a shut-off valve is provided on one side where the first sampling pipe and the second sampling pipe are connected to the first flange, and a pneumatic ball valve is provided on the other side where the first sampling pipe and the second sampling pipe are connected to the control module.

[0014] In some embodiments of the present invention, a reflux channel is provided at the bottom of the oil tank, and the bottom of the oil tank is connected to the reflux module through the reflux channel. The reflux module is provided with a reflux pump and multiple reflux pipes, one end of the multiple reflux pipes is connected to the detection module, the other end of the multiple reflux pipes is connected to one end of the reflux pump, and the other end of the reflux pump is connected to the reflux channel.

[0015] In a second aspect, an embodiment of the present invention provides an oil tank bottom anti-corrosion method, which is applied to the oil tank bottom corrosion detection device as described in the embodiment of the first aspect above, comprising:

[0016] The control module controls the sampling module to sample the first sampling point and multiple second sampling points at the bottom of the oil tank in turn to obtain oil product sampling samples, wherein each time the sampling is performed, only one of the first sampling point and multiple second sampling points is sampled;

[0017] The pre-processing module filters the oil sample and inputs the filtered oil sample into the detection module;

[0018] The detection module detects the oil sample to obtain an oil detection result, and the control module determines the oil detection result;

[0019] When the oil product detection result is qualified oil, the qualified oil is refluxed to the bottom of the oil tank through a reflux module.

[0020] In some embodiments of the present invention, the detection module detects the oil sample, including:

[0021] The buffer mechanism limits the flow of the oil sample input into the sampling pump;

[0022] The conductivity sensor performs conductivity detection on the oil sample after the current limiting to obtain the conductivity value of the oil sample;

[0023] The PH sensor performs PH detection on the oil sample after the current limiting to obtain the PH value of the oil sample;

[0024] When the conductivity value and the pH value are both within the preset first range and the second range, the oil sample flows back to the bottom of the oil tank through the reflux module.

[0025] In some embodiments of the present invention, after obtaining the pH value of the oil sample, the method further includes:

[0026] When the conductivity value and / or the pH value is not within the preset first range and the second range, the oil sample is input into an oil-water separation module to perform an oil-water separation operation to obtain sediment water and a residual oil sample;

[0027] The remaining oil sample is input to the bottom of the oil tank through the reflux module, and the sediment water is input to the waste water tank.

[0028] In a third aspect, an embodiment of the present invention provides a computer-readable storage medium storing computer-executable instructions, wherein the computer-executable instructions are used to execute the oil tank bottom anti-corrosion method as described in the first aspect above.

[0029] The oil tank bottom corrosion detection device according to the embodiment of the present invention has at least the following beneficial effects:

[0030] An oil tank, a first sampling point and a plurality of second sampling points are arranged at the bottom of the oil tank, wherein the first sampling point is arranged at the center of the bottom of the tank, and the second sampling points are arranged around the bottom of the tank; a sampling module, the sampling module is provided with a first flange, a first sampling pipe, a plurality of second sampling pipes and a sampling pump, the first flange is arranged on the pipe wall of the oil tank, one end of the first sampling pipe passes through the first flange and is connected to the first sampling point, one end of the plurality of second sampling pipes passes through the first flange and is connected to the plurality of second sampling points, the other ends of the first sampling pipe and the second sampling pipe are both connected to the sampling pump, and the sampling module is used to extract oil products from the bottom of the tank; a detection module, the detection module is connected to the sampling module, and the detection module is used to detect oil products; a reflux module, the reflux module is connected to the detection module, and the reflux module is used to reflux the detected oil products; a control module, the control module is respectively connected to the sampling module, the detection module and the reflux module. According to the technical solution of this embodiment, the conditions of the oil and deposited water at the bottom of the tank can be effectively monitored, the quality of the oil at the bottom of the tank can be improved, and the accumulated water at the bottom of the tank can be greatly reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a schematic diagram of the overall structure of an oil tank bottom corrosion detection device provided by an embodiment of the present invention;

[0032] Figure 2 It is a schematic diagram of the structure of a sampling module, a detection module, a reflux module and a control module provided in an embodiment of the present invention;

[0033] Figure 3 It is a structural schematic diagram of a pretreatment module and an oil-water separation module provided in an embodiment of the present invention;

[0034] Figure 4 Schematic diagram of the distribution of sampling points on the tank bottom according to an embodiment of the present invention;

[0035] Figure 5 It is a flow diagram of the oil product at the bottom of the tank according to an embodiment of the present invention;

[0036] Figure 6 is a flow chart of an oil tank bottom anticorrosion method provided by another embodiment of the present invention;

[0037] Figure 7 It is a flow chart of the detection module provided in the embodiment of the present invention detecting the oil sample;

[0038] Figure 8 It is a flow chart after obtaining the pH value of the oil sample provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0039] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0040] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., and orientations or positional relationships indicated are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0041] In the description of the present invention, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed" etc. are understood as not including the number itself, and "above", "below", "within" etc. are understood as including the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0042] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0043] Reference Figure 1 , Figure 2 and Figure 3The embodiment of the present invention provides an oil tank bottom corrosion detection device, including an oil tank 100, wherein the tank bottom of the oil tank 100 is provided with a first sampling point and a plurality of second sampling points, wherein the first sampling point is provided at the center of the tank bottom, and the second sampling points are provided around the tank bottom; a sampling module 200, wherein the sampling module 200 is provided with a first flange 210, a first sampling pipe 220, a plurality of second sampling pipes 230 and a sampling pump 240, wherein the first flange 210 is provided on the pipe wall of the oil tank 100, one end of the first sampling pipe 220 penetrates the first flange 210 and is connected to the first sampling point, and one end of the plurality of second sampling pipes 23 ... It passes through the first flange 210 and is connected to multiple second sampling points. The other ends of the first sampling pipe 220 and the second sampling pipe 230 are connected to the sampling pump 240. The sampling module 200 is used to extract the oil at the bottom of the tank; the detection module 300, the detection module 300 is connected to the sampling module 200, and the detection module 300 is used to detect the oil; the reflux module 400, the reflux module 400 is connected to the detection module 300, and the reflux module 400 is used to reflux the detected oil; the control module 500, the control module 500 is respectively connected to the sampling module 200, the detection module 300 and the reflux module 400.

[0044] It should be noted that the oil tank bottom corrosion detection device is composed of a pipeline system at the bottom of the oil tank and an oil tank bottom corrosion detection device arranged outside the oil tank 100. Among them, the first flange 210 is arranged on the side wall of the oil tank 100, and the oil tank bottom corrosion detection device and the oil tank 100 are connected into an integrated device through a special pipeline.

[0045] Specifically, the sampling module 200 is used to extract the oil at the bottom of the tank. Since the sediment water at the bottom of the tank is unevenly distributed and may aggregate, in this embodiment, a first sampling point is set at the center of the tank bottom, and four second sampling points are set around the tank bottom, such as Figure 4 As shown, the first sampling point and each second sampling point are connected to the sampling pump 240 through the first sampling pipe 220 and the second sampling pipe 230 passing through the first flange 210, and the first sampling pipe 220 and the plurality of second sampling pipes 230 are connected to the first flange 210 by means of a ferrule, thereby improving the pressure resistance and leakage prevention effect of the first sampling pipe 220 and the plurality of second sampling pipes 230. Furthermore, the first sampling pipe 220 and the second sampling pipe 230 are both designed as an arc structure and are provided with a sampling port for the sampling pump 240 to extract the oil and sediment water at the bottom of the tank as much as possible.

[0046] It should be noted that the control module 500 is the core of the entire system, and is mainly composed of PLC, analog quantity acquisition module, touch screen, explosion-proof button, solenoid valve and switch power supply. The control module 500 analyzes the conductivity and pH value of the oil extracted from each measuring point to determine whether the oil contains obvious sediment water. If it does, the oil needs to be processed by the oil-water separation module 700 and then flow back to the bottom of the tank; if it is not obvious, the oil directly flows back to the bottom of the tank.

[0047] It should be noted that the oil tank bottom corrosion detection device starts from the source of tank bottom corrosion, detects the oil and sediment water conditions at the tank bottom, thereby improving the quality of the oil at the tank bottom and greatly reducing the sediment water at the tank bottom, and the device has a simple structural design, modular structure, explosion-proof design, easy installation, easy maintenance, and a high degree of automation. In addition, by setting up an efficient sampling module 200, the oil at the bottom of the tank can be processed as much as possible, and by setting up multiple valve circuits, the representativeness of the oil taken is guaranteed while ensuring the good fluidity of the oil. After the initial debugging of the oil tank bottom corrosion detection device is completed, the fully automated process can be carried out.

[0048] The detection module 300 includes a conductivity sensor, a pH sensor and a buffer structure. The buffer structure is arranged at the outlet of the sampling module 200. The buffer structure is used to limit the flow of the oil. The conductivity sensor is used to detect the conductivity of the oil. The pH sensor is used to detect the pH value of the oil. The detected oil is input into the oil tank 100 through the reflux module 400.

[0049] It should be noted that the conductivity sensor, pH sensor and buffer structure are not shown in the drawings of this embodiment, and the technical personnel of this field can set them according to actual needs.

[0050] It should be noted that when the conductivity sensor and the pH sensor measure the oil, the flow rate of the oil cannot be too fast, otherwise inaccurate measurement will result. The detection module 300 is located at the outlet of the sampling pump 240 in the sampling module 200. Since the oil flow rate at the outlet of the sampling pump 240 is relatively fast, a buffer structure is provided to limit the flow rate of the oil to ensure that the oil flows smoothly and evenly through the conductivity sensor and the pH sensor during measurement. When the conductivity of the oil is greater than 400 and the pH is greater than or equal to 7, the oil is detected to be of relatively pure quality, and the oil flows back to the bottom of the tank through the reflux module 400; when the conductivity is less than or equal to 400 or the pH is less than 7, the detection determines that the oil contains more sediment water, and the oil needs to be further processed. When the oil is re-tested and qualified, it flows back to the bottom of the tank through the reflux module 400.

[0051] The oil tank bottom corrosion detection device is also provided with a pretreatment module 600, which is respectively connected to the sampling module 200 and the detection module 300, and the detection module 300 is also connected to the reflux module 400. The pretreatment module 600 is provided with a first filter 610 and a diverter 620, one end of the diverter 620 is connected to the first sampling pipeline 220 and the second sampling pipeline 230, and the other end of the diverter 620 is connected to the first filter 610, and the other end of the first filter 610 is connected to one end of the sampling pump 240, and the other end of the sampling pump 240 is connected to the detection module 300. The pretreatment module 600 is used to filter impurities in the oil.

[0052] It should be noted that the first filter 610 is a bag filter, which is used to filter solid impurities (such as solid particles or suspended matter, etc.) in the oil sent by the sampling module 200 to ensure that the sample sent for inspection does not contain large impurities; after the oil is filtered through the first filter 610, it flows into the detection module 300 through the diverter 620. By filtering the impurities in the oil through the pre-processing module 600, the interference of impurities on the corrosion detection results can be significantly reduced, thereby improving the accuracy of the detection. The setting of the pre-processing module 600 makes the detection process more optimized and efficient. Through the automated and intelligent pre-processing process, the tediousness and errors of manual operations can be reduced, and the detection efficiency can be improved.

[0053] The oil tank bottom corrosion detection device is also provided with an oil-water separation module 700, which is respectively connected to the detection module 300 and the reflux module 400. The oil-water separation module 700 is provided with a coalescing filter 710 and an oil-water separation tank 720. One end of the coalescing filter 710 is connected to the pretreatment module 600, and the other end of the coalescing filter 710 is connected to one end of the oil-water separation tank 720, and the other end of the oil-water separation tank 720 is connected to the reflux module 400.

[0054] It should be noted that the coalescing filter 710 adopts a filter element type coalescing separator, and uses the flow characteristics in the coalescing medium filling layer and the wettability of the medium surface to coalesce and grow the dispersed tiny droplets to achieve oil-water separation. However, the conventional coarse-grained coalescing materials in the filter element type coalescing separator are prone to compaction, and the separation performance is poor, easy to clog, and fail when the emulsification is serious. Therefore, the module needs to be pre-treated by the pre-pretreatment module 600 for oil pretreatment. After the oil is treated by the coalescing separator, in addition to the sediment water, there is a small amount of oil at its sewage outlet. An oil-water separation tank 720 is designed to separate the sediment water at the sewage outlet of the coalescing filter 710. The separated oil returns to the bottom of the tank through the reflux module 400, and the remaining sediment water is concentrated in the wastewater tank for centralized treatment.

[0055] A cut-off valve 250 is disposed on one side where the first sampling pipeline 220 and the second sampling pipeline 230 are connected to the first flange 210 , and a pneumatic ball valve 260 is disposed on the other side where the first sampling pipeline 220 and the second sampling pipeline 230 are connected to the control module 500 .

[0056] It should be noted that the shut-off valve 250 is used to quickly cut off the flow of oil products. When the control module 500 issues a control command, the shut-off valve 250 will quickly close or open, thereby achieving precise control of oil product detection. Specifically, the shut-off valve 250 can quickly cut off the flow of oil products in an emergency, thereby preventing potential dangers or accidents. The pneumatic ball valve 260 is a valve driven by a pneumatic device. When the ball rotates 90°, the valve can be fully opened or fully closed. The fluid channel of the pneumatic ball valve 260 is smooth, and the ball has little resistance to the fluid when rotating. It is suitable for occasions where the detection module 300 of this embodiment is required to detect low-resistance oil products.

[0057] A reflux channel is provided at the bottom of the oil tank 100, and the bottom of the oil tank 100 is connected to the reflux module 400 through the reflux channel. The reflux module 400 is provided with a reflux pump and multiple reflux pipes. One end of the multiple reflux pipes is connected to the detection module 300, and the other end of the multiple reflux pipes is connected to one end of the reflux pump, and the other end of the reflux pump is connected to the pipeline between the reflux channel.

[0058] It should be noted that, in this embodiment, the reflux pump and the reflux pipe are not shown in the drawings, and those skilled in the art may set them according to actual installation requirements.

[0059] It should be noted that the oil after testing is fed to the bottom of the tank through the reflux pipe under the action of the reflux pump. In this embodiment, the reflux pipe is a multi-pass pipe connected to all the pipes refluxed to the bottom of the tank. The reflux oil is discharged according to a certain rule, such as Figure 5 shown. Figure 5 In the process, the oil product at sampling point 1 is tested first. When the oil product at sampling point 1 is extracted, negative pressure is present around it. Then the reflux valve at sampling point 5 is opened, and the reflux valves at other sampling points are closed. The oil product at sampling point 1 will be discharged through the reflux valve at sampling point 5 after being treated, and positive pressure is present around sampling point 5. Finally, there is a significant pressure difference between sampling points 1 and 5, which will cause the oil products around them to gradually move closer to sampling point 1, and try to extract oil products at different positions on the tank bottom.

[0060] The following further describes the anti-corrosion method for the bottom of an oil tank according to an embodiment of the present invention based on the accompanying drawings.

[0061] Reference Figure 6 , Figure 6A flowchart of an oil tank bottom anti-corrosion method provided in an embodiment of the present invention, the oil tank bottom anti-corrosion method includes but is not limited to the following steps:

[0062] Step S11, the control module 500 controls the sampling module 200 to sample the first sampling point and multiple second sampling points at the bottom of the oil tank in turn to obtain oil sample samples, wherein each time sampling is performed, only one of the first sampling point and multiple second sampling points is sampled;

[0063] It should be noted that the sampling module 200 samples the five sampling points at the bottom of the oil tank in turn, and only extracts oil samples from one sampling point each time. By sampling in turn, it is ensured that the oil products at different positions at the bottom of the oil tank can be extracted, thereby comprehensively reflecting the overall situation of the oil products at the bottom of the oil tank. In addition, the rotation sampling strategy allows only one sampling point to be focused on each time sampling, making it more convenient to control and monitor the oil products. In the event of an emergency (such as oil leakage, fire, etc.), the rotation sampling strategy allows sampling personnel to locate and deal with problem sampling points more quickly.

[0064] Step S12, the pre-processing module 600 filters the oil sample and inputs the filtered oil sample to the detection module 300;

[0065] It should be noted that solid impurities (such as solid particles or suspended matter, etc.) in the oil sent by the filtering sampling module 200 are ensured to ensure that the sample sent for inspection does not contain large impurities. After the oil is filtered through the pretreatment module 600, it is input into the detection module 300 through the diverter 620.

[0066] Step S13, the detection module 300 detects the oil sample to obtain the oil detection result, and the control module 500 determines the oil detection result;

[0067] It should be noted that the conductivity and pH value of the oil sample filtered by the pre-processing module 600 are tested to obtain the oil test result, and the control module 500 determines whether the oil sample is qualified according to the oil test result.

[0068] Step S14, when the oil product detection result is qualified oil product, the qualified oil product is refluxed to the bottom of the oil tank through the reflux module 400.

[0069] It should be noted that when the test result is qualified oil, the qualified oil is returned to the bottom of the oil tank through the reflux module 400. Furthermore, each sampling point runs for one hour, and the first sampling point to multiple second sampling points are sequentially sequenced and performed once a day, thereby ensuring that the sediment water at the bottom of the tank is effectively removed, realizing active corrosion protection at the bottom of the oil tank, and ensuring the quality of the oil at the bottom of the oil tank.

[0070] It should be noted that this embodiment monitors the oil at the bottom of the tank and filters the sediment water at the bottom of the tank to remove water and impurities from the oil at the bottom of the tank, thereby improving the quality of the oil at the bottom of the tank and preventing corrosion and perforation of the tank bottom.

[0071] In addition, in one embodiment, referring to Figure 7 ,exist Figure 6 Step S13 of the illustrated embodiment also includes but is not limited to the following steps:

[0072] Step S21, the buffer mechanism limits the flow of the oil sample input to the detection module 300;

[0073] Step S22, the conductivity sensor performs conductivity detection on the oil sample after current limiting to obtain the conductivity value of the oil sample;

[0074] Step S23, the pH sensor performs pH detection on the oil sample after current limiting to obtain the pH value of the oil sample;

[0075] Step S24, when the conductivity value and the pH value are both within the preset first range and the second range, the oil sample flows back to the bottom of the oil tank through the reflux module 400.

[0076] It should be noted that before the oil sampling samples are input into the detection module 300 for detection, the flow of the oil sampling samples is limited by the buffer mechanism, so as to obtain the sampling samples with a stable flow rate, thereby ensuring the stability and reliability of the detection module 300 when detecting the oil sampling samples; through the real-time monitoring of the oil sampling samples by the conductivity sensor and the pH sensor, abnormal changes in the oil products can be discovered in time. When the detected conductivity value is ≥400 (first range) and the pH value is <7 (second range), the oil sampling samples will flow back to the bottom of the oil tank through the reflux module 400.

[0077] In addition, in one embodiment, referring to Figure 8 ,exist Figure 7 After step S23 in the illustrated embodiment, the following steps are also included but not limited to:

[0078] Step S31, when the conductivity value and / or the pH value is not within the preset first range and the second range, the oil sample is input into the oil-water separation module 700 for oil-water separation operation to obtain sediment water and residual oil sample;

[0079] Step S32, input the remaining oil sample to the bottom of the oil tank through the reflux module 400, and input the sediment water into the waste water tank.

[0080] It should be noted that, if the conductivity is detected to be ≤400 (first range) or PH<7 (second range), it is determined that the oil contains a lot of sediment water and oil, and needs to be processed by the oil-water separation module 700. The treated oil returns to the bottom of the tank through the reflux module 400; and the separated sediment water still contains a certain amount of oil, and it is necessary to pass through a separation tank to separate the oil in the sediment water, and send the separated oil back to the bottom of the tank, and the remaining wastewater is sent to the wastewater tank for centralized treatment.

[0081] An embodiment of the present application also provides a storage medium, which is a computer-readable storage medium. The storage medium stores a computer program, and when the computer program is executed by a processor, the above-mentioned oil tank bottom anti-corrosion method is implemented.

[0082] As a non-transient computer-readable storage medium, the memory can be used to store non-transient software programs and non-transient computer executable programs. In addition, the memory may include a high-speed random access memory, and may also include a non-transient memory, such as at least one disk storage device, a flash memory device, or other non-transient solid-state storage devices. In some embodiments, the memory may optionally include a memory remotely arranged relative to the processor, and these remote memories may be connected to the processor via a network. Examples of the above-mentioned networks include, but are not limited to, the Internet, an intranet, a local area network, a mobile communication network, and a combination thereof. The device embodiments described above are merely schematic, wherein the units described as separate components may or may not be physically separated, and are implemented to be located in one place, or may also be distributed to multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the present embodiment.

[0083] It will be appreciated by those skilled in the art that all or some of the steps and systems in the disclosed method above may be implemented as software, firmware, hardware and appropriate combinations thereof. Some physical components or all physical components may be implemented as software executed by a processor, such as a central processing unit, a digital signal processor or a microprocessor, or may be implemented as hardware, or may be implemented as an integrated circuit, such as an application specific integrated circuit. Such software may be distributed on a computer-readable medium, which may include a computer storage medium (or a non-transitory medium) and a communication medium (or a temporary medium). As known to those skilled in the art, the term computer storage medium includes volatile and non-volatile, removable and non-removable media implemented in any method or technology for storing information (such as computer-readable instructions, data structures, program modules or other data). Computer storage media include, but are not limited to, RAM, ROM, EEPROM, flash memory or other memory technologies, CD-ROM, digital versatile disks (DVD) or other optical disk storage, magnetic cassettes, magnetic tapes, disk storage or other magnetic storage devices, or any other medium that may be used to store desired information and may be accessed by a computer. Furthermore, it is well known to those skilled in the art that communication media typically include computer readable instructions, data structures, program modules, or other data in a modulated data signal such as a carrier wave or other transport mechanism, and may include any information delivery media.

[0084] The above is a specific description of the preferred implementation of the present invention, but the present invention is not limited to the above-mentioned implementation mode. Technical personnel familiar with the field can also make various equivalent deformations or substitutions under the shared conditions without violating the spirit of the present invention. These equivalent deformations or substitutions are all included in the scope defined by the claims of the present invention.

Claims

1. An oil tank bottom corrosion detection device, characterized in that: include: An oil tank, wherein a first sampling point and a plurality of second sampling points are arranged at the bottom of the oil tank, wherein the first sampling point is arranged at the center of the bottom of the tank, and the second sampling points are arranged around the bottom of the tank; A sampling module, wherein the sampling module is provided with a first flange, a first sampling pipe, a plurality of second sampling pipes and a sampling pump, wherein the first flange is provided on the pipe wall of the oil tank, one end of the first sampling pipe passes through the first flange and is connected to the first sampling point, one end of a plurality of second sampling pipes passes through the first flange and is connected to a plurality of second sampling points, the other ends of the first sampling pipe and the second sampling pipe are both connected to the sampling pump, and the sampling module is used to extract the oil product at the bottom of the tank; A detection module, the detection module is connected to the sampling module, and the detection module is used to detect the oil product; A reflux module, the reflux module is connected to the detection module, and the reflux module is used to reflux the oil product after detection; A control module is connected to the sampling module, the detection module and the reflux module respectively.

2. The oil tank bottom corrosion detection device according to claim 1 is characterized in that: The detection module includes a conductivity sensor, a pH sensor and a buffer structure. The buffer structure is arranged at the outlet of the sampling module. The buffer structure is used to limit the flow of the oil product. The conductivity sensor is used to detect the conductivity of the oil product. The pH sensor is used to detect the pH value of the oil product. The detected oil product is input into the oil tank through the reflux module.

3. The oil tank bottom corrosion detection device according to claim 2 is characterized in that: The oil tank bottom corrosion detection device is also provided with a pretreatment module, which is respectively connected to the sampling module and the detection module, and the detection module is also connected to the reflux module. The pretreatment module is provided with a first filter and a diverter, one end of the diverter is connected to the first sampling pipeline and the second sampling pipeline, and the other end of the diverter is connected to the first filter, and the other end of the first filter is connected to one end of the sampling pump, and the other end of the sampling pump is connected to the reflux module. The pretreatment module is used to filter impurities in the oil product.

4. The oil tank bottom corrosion detection device according to claim 3 is characterized in that: The oil tank bottom corrosion detection device is also provided with an oil-water separation module, which is connected to the detection module and the reflux module respectively, and is provided with a coalescing filter and an oil-water separation tank, one end of the coalescing filter is connected to the pretreatment module, the other end of the coalescing filter is connected to one end of the oil-water separation tank, and the other end of the oil-water separation tank is connected to the reflux module.

5. The oil tank bottom corrosion detection device according to claim 1, characterized in that: A cut-off valve is provided on one side where the first sampling pipeline and the second sampling pipeline are connected to the first flange, and a pneumatic ball valve is provided on the other side where the first sampling pipeline and the second sampling pipeline are connected to the control module.

6. The oil tank bottom corrosion detection device according to claim 1, characterized in that: A reflux channel is provided at the bottom of the oil tank, and the bottom of the oil tank is connected to the reflux module through the reflux channel. The reflux module is provided with a reflux pump and multiple reflux pipes, one end of the multiple reflux pipes is connected to the detection module, the other end of the multiple reflux pipes is connected to one end of the reflux pump, and the other end of the reflux pump is connected to the pipeline between the reflux channel.

7. A method for anti-corrosion of oil tank bottom, characterized in that: Applicable to the oil tank bottom corrosion detection device according to any one of claims 1 to 6, comprising: The control module controls the sampling module to sample the first sampling point and multiple second sampling points at the bottom of the oil tank in turn to obtain oil product sampling samples, wherein each time the sampling is performed, only one of the first sampling point and multiple second sampling points is sampled; The pre-processing module filters the oil sample and inputs the filtered oil sample into the detection module; The detection module detects the oil sample to obtain an oil detection result, and the control module determines the oil detection result; When the oil product detection result is qualified oil, the qualified oil is refluxed to the bottom of the oil tank through a reflux module.

8. The method for anticorrosion of the bottom of an oil tank according to claim 7, characterized in that: The detection module detects the oil sample, including: The buffer mechanism limits the flow of the oil sample input into the sampling pump; The conductivity sensor performs conductivity detection on the oil sample after the current limiting to obtain the conductivity value of the oil sample; The PH sensor performs PH detection on the oil sample after the current limiting to obtain the PH value of the oil sample; When the conductivity value and the pH value are both within the preset first range and the second range, the oil sample flows back to the bottom of the oil tank through the reflux module.

9. The method for anticorrosion of the bottom of an oil tank according to claim 8, characterized in that: After obtaining the pH value of the oil sample, the method further comprises: When the conductivity value and / or the pH value is not within the preset first range and the second range, the oil sample is input into an oil-water separation module to perform an oil-water separation operation to obtain sediment water and a residual oil sample; The remaining oil sample is input to the bottom of the oil tank through the reflux module, and the sediment water is input to the waste water tank.

10. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores computer-executable instructions, and the computer-executable instructions are used to enable a computer to execute the oil tank bottom anticorrosion method according to any one of claims 7 to 9.

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