Desulfurization slurry pipeline leakage early warning method, device, equipment and medium

Abstract

The invention provides a desulfurization slurry pipeline leakage early warning method, device and equipment and a medium, and belongs to the technical field of thermal power plant desulfurization. The method comprises the following steps: monitoring and calculating the inlet pressure of a desulfurization circulating pump in the water injection maintenance process of a desulfurization slurry pipeline so as to determine the liquid level height, and if the difference between the actual liquid level and the preset liquid level exceeds a threshold value, evaluating the leakage level. The leakage level is matched with a preset early warning processing measure table to obtain a corresponding early warning processing measure, and a user is notified to execute maintenance through terminal equipment to ensure safe operation of the pipeline. According to the invention, through integration of monitoring and intelligent analysis technologies, rapid identification and automatic early warning of desulfurization slurry pipeline leakage are realized, so that safe operation of equipment is guaranteed, environmental risks are reduced, and the working efficiency of desulfurization slurry pipeline leakage monitoring is greatly improved.

Description

Technical Field

[0001] The present invention relates to the technical field of desulfurization in thermal power plants, and in particular to a desulfurization slurry pipeline leakage early warning method, a desulfurization slurry pipeline leakage early warning device, an electronic device and a computer-readable storage medium. Background Art

[0002] In the desulfurization system of a thermal power plant, the desulfurization circulation pump is a key device to ensure desulfurization efficiency and system stability. Its main function is to extract the slurry in the absorption tower and transport it to the spray layer so that the CaCO3 in the slurry can fully contact and react with the SO2 in the original flue gas, thereby effectively removing SO2 and meeting environmental emission standards. The number of desulfurization circulation pumps designed and configured varies according to the capacity scale of the desulfurization system. Generally, at least 4 pumps are required. In cases where the boiler load is low or the SO2 content in the flue gas is low, some circulation pumps may be shut down to save energy, and the shut-down pumps remain in standby status.

[0003] At present, in order to maintain the normal operation of the desulfurization circulation pump, when the pump is shut down, a series of operation steps will be performed, including shutting down the circulation pump, closing the inlet door, opening the discharge door to discharge the residual slurry in the pipeline, closing the discharge door, and opening the flushing door for water injection maintenance to prevent slurry deposition inside the pipeline. These measures are aimed at keeping the pump and pipeline clean and ensuring that the pump can be quickly put back into operation when needed. During normal operation, by adjusting the operation mode of the circulation pump, different boiler loads and flue gas emissions can be coped with to maintain the efficiency of the desulfurization system.

[0004] However, the existing technologies have the following problems: (1) Slurry backflow and pipeline deposition caused by poor sealing of the pump inlet door or nozzle failure are not easy to detect in advance. The problem is only exposed when the current is abnormal when the pump is restarted, affecting the stability of the system; (2) It mostly relies on shutdown maintenance and cannot be monitored and hidden dangers are detected in real time; (3) If the slurry is not handled in time, it is easy to solidify, causing the impeller to get stuck, and the process water flushing is ineffective, making the pump unable to be used as a standby, threatening safe production.

[0005] In general, the existing technology is unable to monitor and handle in real time the slurry backflow and pipeline deposition caused by poor sealing of the desulfurization circulation pump inlet door or nozzle failure, which leads to slurry solidification and impeller jamming, making the desulfurization circulation pump unable to serve as a backup. Summary of the invention

[0006] The purpose of the embodiments of the present invention is to provide a desulfurization slurry pipeline leakage early warning method, device, equipment and medium to solve the above-mentioned problems.

[0007] In order to achieve the above-mentioned purpose, an embodiment of the present invention provides a desulfurization slurry pipeline leakage early warning method, the desulfurization slurry pipeline includes a desulfurization circulation pump inlet pipeline and a desulfurization circulation pump outlet pipeline, the input end of the desulfurization circulation pump inlet pipeline is connected to the limestone slurry storage tank, the output end of the desulfurization circulation pump inlet pipeline is connected to the input end of the desulfurization circulation pump outlet pipeline, the output end of the desulfurization circulation pump outlet pipeline is connected to the desulfurization circulation pump, and the output end of the desulfurization circulation pump inlet pipeline is provided with a pressure monitoring device, including: When water injection maintenance is performed on the inlet pipeline of the desulfurization circulation pump, the inlet pressure of the desulfurization circulation pump is obtained; wherein the inlet pressure of the desulfurization circulation pump is monitored by a pressure monitoring device; When the inlet pressure of the desulfurization circulation pump reaches the preset pressure, the inlet pressure of the desulfurization circulation pump is calculated based on the principle of fluid statics to obtain the liquid level height of the outlet pipeline of the desulfurization circulation pump; When the difference between the liquid level height of the outlet pipeline of the desulfurization circulation pump and the preset liquid level height is greater than the preset threshold, the leakage level of the desulfurization slurry pipeline is determined based on the liquid level height of the outlet pipeline of the desulfurization circulation pump and the preset liquid level height; Match the leakage level of the desulfurization slurry pipeline with the preset desulfurization slurry pipeline leakage early warning treatment measures table to determine the early warning treatment measures for the desulfurization slurry pipeline; wherein the preset desulfurization slurry pipeline leakage early warning treatment measures table is used to characterize the mapping relationship between the leakage level of the desulfurization slurry pipeline and the early warning treatment measures for the desulfurization slurry pipeline; The early warning treatment measures of the desulfurization slurry pipeline are sent to the user's terminal equipment, so that the user can maintain the desulfurization slurry pipeline according to the early warning treatment measures of the desulfurization slurry pipeline.

[0008] Optionally, the inlet pressure of the desulfurization circulation pump is calculated based on the principle of fluid statics to obtain the liquid level height of the outlet pipeline of the desulfurization circulation pump, including: Use the following formula to calculate the inlet pressure of the desulfurization circulation pump and obtain the liquid level height of the outlet pipeline of the desulfurization circulation pump; ;in, Indicates the liquid level height of the outlet pipeline of the desulfurization circulation pump. Indicates the inlet pressure of the desulfurization circulation pump. Indicates the preset atmospheric pressure, Indicates the preset water density, Indicates the preset gravity acceleration.

[0009] Optionally, based on the liquid level height of the outlet pipeline of the desulfurization circulation pump and the preset liquid level height, the leakage level of the desulfurization slurry pipeline is determined, including: Use the following formula to calculate the liquid level height of the outlet pipeline of the desulfurization circulation pump and the preset liquid level height to determine the liquid density in the desulfurization slurry pipeline; ;in, Indicates the liquid density in the desulfurization slurry pipeline, Indicates the liquid level height of the desulfurization slurry pipeline. Indicates the preset liquid level height; The liquid density in the desulfurization slurry pipeline is classified into leakage grades to determine the leakage grade of the desulfurization slurry pipeline.

[0010] Optionally, the liquid density in the desulfurization slurry pipeline is classified into leakage levels to determine the leakage level of the desulfurization slurry pipeline, including: When the liquid density in the desulfurization slurry pipeline is greater than the first preset liquid density and less than the second preset liquid density, the leakage level of the desulfurization slurry pipeline is determined to be a first-level leakage; When the liquid density in the desulfurization slurry pipeline is greater than the second preset liquid density and less than the third preset liquid density, the leakage level of the desulfurization slurry pipeline is determined to be a secondary leakage; When the liquid density in the desulfurization slurry pipeline is greater than the third preset liquid density, the leakage level of the desulfurization slurry pipeline is determined to be a third-level leakage; Among them, the third preset liquid density>the second preset liquid density>the first preset liquid density.

[0011] Optionally, the desulfurization slurry pipeline leakage early warning method also includes: When the inlet pressure of the desulfurization circulation pump reaches the preset pressure and the user's trigger operation on the early warning input display control is monitored, the inlet pressure of the desulfurization circulation pump is calculated based on the principle of fluid statics to obtain the liquid level height of the outlet pipeline of the desulfurization circulation pump.

[0012] Optionally, the desulfurization slurry pipeline leakage early warning method also includes: When the difference between the liquid level height of the outlet pipeline of the desulfurization circulation pump and the preset liquid level height is greater than the preset threshold, the leakage timing starts. When the difference between the liquid level height of the desulfurization slurry pipeline and the preset liquid level height is less than the preset threshold, the leakage timing is stopped and the duration of the leakage timing is determined.

[0013] Optionally, the desulfurization slurry pipeline leakage early warning method also includes: The inlet pressure of the desulfurization circulation pump, the liquid level of the desulfurization slurry pipeline, the preset liquid level, the leakage level of the desulfurization slurry pipeline and the duration of the leakage timing are output and displayed on the DCS system.

[0014] In a second aspect of an embodiment of the present invention, a desulfurization slurry pipeline leakage warning device is provided, comprising: The data acquisition module is used to obtain the inlet pressure of the desulfurization circulation pump when the inlet pipeline of the desulfurization circulation pump is water-filled for maintenance; wherein the inlet pressure of the desulfurization circulation pump is monitored by a pressure monitoring device; A height calculation module is used to calculate the inlet pressure of the desulfurization circulation pump based on the principle of fluid statics when the inlet pressure of the desulfurization circulation pump reaches a preset pressure, so as to obtain the liquid level height of the outlet pipeline of the desulfurization circulation pump; A level classification module, used to determine the leakage level of the desulfurization slurry pipeline based on the liquid level height of the outlet pipeline of the desulfurization circulation pump and the preset liquid level height when the difference between the liquid level height of the outlet pipeline of the desulfurization circulation pump and the preset liquid level height is greater than a preset threshold value; A measure determination module is used to match the leakage level of the desulfurization slurry pipeline with the preset desulfurization slurry pipeline leakage early warning treatment measure table to determine the early warning treatment measures for the desulfurization slurry pipeline; wherein the preset desulfurization slurry pipeline leakage early warning treatment measure table is used to characterize the mapping relationship between the leakage level of the desulfurization slurry pipeline and the early warning treatment measures for the desulfurization slurry pipeline; The measure execution module is used to send the early warning treatment measures of the desulfurization slurry pipeline to the user's terminal device, so that the user can maintain the desulfurization slurry pipeline according to the early warning treatment measures of the desulfurization slurry pipeline.

[0015] In a third aspect of the embodiments of the present invention, an electronic device is provided, including: a processor and a memory, wherein the memory stores machine-readable instructions executable by the processor, and when the machine-readable instructions are executed by the processor, the above-mentioned desulfurization slurry pipeline leakage early warning method is executed.

[0016] In a fourth aspect of the embodiments of the present invention, a computer-readable storage medium is provided, which stores computer instructions. When the computer instructions are executed on a computer, the computer executes the above-mentioned desulfurization slurry pipeline leakage early warning method.

[0017] Beneficial effects of the present invention: (1) By real-time monitoring of pressure changes, pipeline leaks can be discovered in a timely manner, thereby avoiding environmental pollution or safety accidents caused by slurry leakage and preventing greater losses.

[0018] (2) Timely detection and treatment of leaks can avoid equipment failure and shutdown caused by leaks, as well as corrosion and damage to the equipment. This not only improves the reliability of equipment operation, but also extends the service life of the equipment.

[0019] (3) By detecting leaks at an early stage, equipment damage can be avoided, thereby reducing maintenance costs and manpower investment.

[0020] (4) Timely discovery and treatment of leaks can avoid environmental pollution caused by slurry leakage and protect the ecological environment.

[0021] (5) Automatically monitor pressure and intelligently determine leakage level and treatment measures without manual intervention, significantly improving work efficiency.

[0022] Other features and advantages of the embodiments of the present invention will be described in detail in the subsequent detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The accompanying drawings are used to provide a further understanding of the embodiments of the present invention and constitute a part of the specification. Together with the following specific implementations, they are used to explain the embodiments of the present invention, but do not constitute a limitation on the embodiments of the present invention. In the accompanying drawings: Figure 1 It is a schematic diagram of the process of the desulfurization slurry pipeline leakage early warning method provided by an embodiment of the present invention; Figure 2 It is a schematic diagram of the structure of a desulfurization slurry pipeline provided by an embodiment of the present invention; Figure 3 is a schematic diagram of a DCS display interface provided by an embodiment of the present invention; Figure 4 It is a structural schematic diagram of a desulfurization slurry pipeline leakage early warning device provided in an embodiment of the present invention. DETAILED DESCRIPTION

[0024] The specific implementation of the embodiment of the present invention is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described here is only used to illustrate and explain the embodiment of the present invention, and is not used to limit the embodiment of the present invention.

[0025] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit this application.

[0026] In the description of the embodiments of the present application, the technical terms "first", "second", etc. are only used to distinguish different objects, and cannot be understood as indicating or implying relative importance or implicitly indicating the number, specific order or primary and secondary relationship of the indicated technical features. In the description of the embodiments of the present application, the meaning of "multiple" is more than two, unless otherwise clearly and specifically defined.

[0027] Embodiment 1 Please refer to Figure 1 , Figure 1 The present invention provides a flow chart of a desulfurization slurry pipeline leakage early warning method, which includes the following steps: like Figure 2As shown, the desulfurization slurry pipeline includes a desulfurization circulation pump inlet pipeline and a desulfurization circulation pump outlet pipeline. The input end of the desulfurization circulation pump inlet pipeline is connected to the limestone slurry storage tank, the output end of the desulfurization circulation pump inlet pipeline is connected to the input end of the desulfurization circulation pump outlet pipeline, the output end of the desulfurization circulation pump outlet pipeline is connected to the desulfurization circulation pump, and the output end of the desulfurization circulation pump inlet pipeline is provided with a pressure monitoring device.

[0028] It is understandable that since the desulfurization circulation pump is connected to the limestone slurry storage tank through the desulfurization slurry pipeline, the leakage monitoring of the inlet of the desulfurization circulation pump is actually monitoring whether the limestone slurry storage tank leaks into the desulfurization slurry pipeline, so the leakage monitoring of the inlet of the desulfurization circulation pump is actually the leakage monitoring of the desulfurization slurry pipeline.

[0029] It should be noted that deposition monitoring refers to monitoring whether there are solid particles deposited in the pipeline or container, which may cause pipeline blockage or reduce equipment efficiency, while leakage monitoring refers to whether there is fluid material (such as slurry) leaking from the pipeline, which may cause damage to the environment and equipment. Therefore, deposition can be regarded as the result of leakage.

[0030] S100, when water injection maintenance is performed on the inlet pipeline of the desulfurization circulation pump, the inlet pressure of the desulfurization circulation pump is obtained; wherein the inlet pressure of the desulfurization circulation pump is obtained by monitoring the pressure monitoring device; It is understandable that if Figure 2 As shown in the figure, the pressure monitoring device is set at the output end of the desulfurization circulation pump inlet pipeline. At this time, the desulfurization slurry pipeline is undergoing water injection maintenance, so the pressure monitoring device monitors the water pressure. If there is slurry leakage from the limestone slurry storage tank, the pressure monitoring device monitors the pressure of the mixture of water and slurry.

[0031] Specifically, when the desulfurization circulation pump enters the standby state, close the inlet door and discharge door of the desulfurization circulation pump inlet pipeline, open the flushing door, replenish water to the desulfurization circulation pump inlet pipeline for a certain period of time (i.e. water injection maintenance), and then use the pressure monitoring device to monitor the desulfurization circulation pump inlet pressure. When the desulfurization circulation pump inlet pressure reaches 10KPa, record it as the start of water injection signal, and the leakage monitoring test begins.

[0032] S200, when the inlet pressure of the desulfurization circulation pump reaches a preset pressure, the inlet pressure of the desulfurization circulation pump is calculated based on the principle of fluid statics to obtain the liquid level height of the outlet pipeline of the desulfurization circulation pump; In one embodiment, step S200 specifically includes: Use the following formula to calculate the inlet pressure of the desulfurization circulation pump and obtain the liquid level height of the outlet pipeline of the desulfurization circulation pump; ;in, Indicates the liquid level height of the outlet pipeline of the desulfurization circulation pump. Indicates the inlet pressure of the desulfurization circulation pump. Indicates the preset atmospheric pressure, Indicates the preset water density, Indicates the preset gravity acceleration.

[0033] It should be noted that the pressure measured by the gauge pressure is how much higher than the atmospheric pressure. It only tells you the part that exceeds the atmospheric pressure, while the absolute pressure is calculated from a vacuum state with no pressure at all. It includes the total pressure of the atmospheric pressure and the gauge pressure added together. What needs to be measured is the pressure generated by the liquid itself, not how much higher it is than the atmospheric pressure. The absolute pressure is like a ruler starting from zero, which can help us accurately measure the actual height of the liquid. Therefore, to calculate the liquid level, you need to use absolute pressure, so that it will not be affected by changes in atmospheric pressure, and the calculation will be more accurate.

[0034] It should be noted that when slurry enters the inlet pipe of the desulfurization circulation pump, the slurry is mixed with water. Since the slurry contains a large number of suspended particles, heavy substances settle faster than light substances without the action of an agitator. Soon, the suspended particles in the slurry will be evenly deposited below the bottom of the inlet pipe of the desulfurization circulation pump. At this time, the mixing effect of the medium in the pipe is poor, and the fluid medium is stratified, that is, the bottom of the inlet pipe of the desulfurization circulation pump is a slurry containing suspended particles with a higher density, and the medium in the upper layer of the inlet pipe of the desulfurization circulation pump and the outlet pipe of the desulfurization circulation pump is relatively clear. We roughly understand the density of this part of the clearer medium as close to the density of water.

[0035] S300, when the difference between the liquid level height of the outlet pipeline of the desulfurization circulation pump and the preset liquid level height is greater than a preset threshold, determining the leakage level of the desulfurization slurry pipeline based on the liquid level height of the outlet pipeline of the desulfurization circulation pump and the preset liquid level height; Specifically, when there is no slurry leakage in the desulfurization slurry pipeline, the liquid level height of the desulfurization slurry pipeline corresponding to the inlet pressure of the desulfurization circulation pump should be almost close to the preset liquid level height. If the difference between the liquid level height of the desulfurization slurry pipeline and the preset liquid level height is greater than the preset threshold, it means that the slurry has flowed into the inlet pipeline of the desulfurization circulation pump, that is, the desulfurization slurry pipeline has slurry leakage.

[0036] In one embodiment, step S300 specifically includes: S310, using the following formula, calculate the liquid level height of the outlet pipeline of the desulfurization circulation pump and the preset liquid level height to determine the liquid density in the desulfurization slurry pipeline; ;in, Indicates the liquid density in the desulfurization slurry pipeline, Indicates the liquid level height of the desulfurization slurry pipeline. Indicates the preset liquid level height; Specifically, with the increase in the amount of slurry leakage, the liquid level height of the desulfurization circulation pump outlet pipeline gradually rises. Combined with the years of work experience of professional experts, in the past, when the desulfurization circulation pump inlet pipeline was deposited and needed to be manually dredged on site, the slurry in the pipeline needed to be discharged into the pit, the agitator was started to stir evenly, and the density of the mixed fluid slurry was measured by manual sampling and testing. Through statistical record analysis of previous on-site deposition conditions and comparison of large-scale sampling and testing big data under different leakage conditions, it is deduced that the liquid density in the desulfurization slurry pipeline is approximately equal to 1000 times the ratio of the liquid level height of the desulfurization circulation pump outlet pipeline to the preset liquid level height.

[0037] S320, classifying the liquid density in the desulfurization slurry pipeline into leakage grades, and determining the leakage grade of the desulfurization slurry pipeline.

[0038] Specifically, step S320 includes: When the liquid density in the desulfurization slurry pipeline is greater than the first preset liquid density and less than the second preset liquid density, the leakage level of the desulfurization slurry pipeline is determined to be a first-level leakage; When the liquid density in the desulfurization slurry pipeline is greater than the second preset liquid density and less than the third preset liquid density, the leakage level of the desulfurization slurry pipeline is determined to be a secondary leakage; When the liquid density in the desulfurization slurry pipeline is greater than the third preset liquid density, the leakage level of the desulfurization slurry pipeline is determined to be a third-level leakage; Among them, the third preset liquid density>the second preset liquid density>the first preset liquid density.

[0039] For ease of understanding, the following combination Figure 3 To explain: according to Figure 3 It can be seen that the first preset liquid density is 1050kg / m 3 The second preset liquid density is 1070kg / m 3， The first preset liquid density is 1100kg / m 3 The liquid density in the desulfurization slurry pipeline is 1082.4kg / m 3 , through judgment, we know that 1082.4kg / m 3 More than 1050kg / m 3 And less than 1100kg / m 3 Therefore, the leakage level of the desulfurization slurry pipeline was judged to be a secondary leakage.

[0040] S400, matching the leakage level of the desulfurization slurry pipeline with the preset desulfurization slurry pipeline leakage early warning treatment measure table to determine the early warning treatment measures of the desulfurization slurry pipeline; wherein the preset desulfurization slurry pipeline leakage early warning treatment measure table is used to characterize the mapping relationship between the leakage level of the desulfurization slurry pipeline and the early warning treatment measures of the desulfurization slurry pipeline; For ease of understanding, the following explanation is provided in conjunction with Table 1: Table 1 Preset desulfurization slurry pipeline leakage warning treatment measures

[0041] According to Table 1, assuming that the leakage level of the desulfurization slurry pipeline is a level 2 leakage, the early warning and treatment measures for the desulfurization slurry pipeline are: (1) immediately report to the central control room and activate the emergency plan; (2) on-site staff wear protective equipment and set up a warning area; (3) close the valve near the leakage point to reduce the leakage; (4) use professional plugging tools to seal the leak; (5) flush the leakage area to reduce environmental pollution; (6) check the cause of the leak and repair it; (7) strengthen inspections near the leak point to prevent the leak from expanding.

[0042] S500, sending the early warning treatment measures of the desulfurization slurry pipeline to the user's terminal device, so that the user can maintain the desulfurization slurry pipeline according to the early warning treatment measures of the desulfurization slurry pipeline.

[0043] In one or more of the above embodiments, the desulfurization slurry pipeline leakage early warning method further includes: When the inlet pressure of the desulfurization circulation pump reaches the preset pressure and the user triggers the early warning input display control, the inlet pressure of the desulfurization circulation pump is calculated based on the principle of fluid statics to obtain the liquid level height of the outlet pipeline of the desulfurization circulation pump. Specifically, with the continuous injection of flushing water, the pressure monitored by the pressure monitoring device (desulfurization circulation pump inlet pressure) gradually increases. When the desulfurization circulation pump inlet pressure reaches the preset pressure, it indicates that the water injection level signal has been reached. At this time, click the early warning input display control on the DCS system, and then enter the leakage monitoring of the desulfurization slurry pipeline.

[0044] In this embodiment, the user's manual click operation is used as a prerequisite for leakage monitoring, so that the desulfurization slurry pipeline can be leak-monitored according to the user's needs.

[0045] In one or more of the above embodiments, the desulfurization slurry pipeline leakage early warning method further includes: When the difference between the liquid level height of the desulfurization slurry pipeline and the preset liquid level height is greater than the preset threshold, the leakage timing starts. When the difference between the liquid level height of the desulfurization slurry pipeline and the preset liquid level height is less than the preset threshold, the leakage timing is stopped and the duration of the leakage timing is determined.

[0046] In the embodiment of the present invention, by monitoring the duration of the leakage timing, unnecessary maintenance or shutdown inspection of the system can be avoided, which not only reduces the downtime caused by leakage problems, thereby improving the overall production efficiency, but also saves maintenance costs.

[0047] In one or more of the above embodiments, the desulfurization slurry pipeline leakage early warning method further includes: The inlet pressure of the desulfurization circulation pump, the liquid level of the desulfurization slurry pipeline, the preset liquid level, the leakage level of the desulfurization slurry pipeline and the duration of the leakage timing are output and displayed on the DCS system.

[0048] Specifically, Figure 4 As shown, the DCS system displays the inlet pressure of the desulfurization circulation pump, the liquid level of the desulfurization slurry pipeline, the preset liquid level, the leakage grade of the desulfurization slurry pipeline and the duration of the leakage timing, so that the user can intuitively see the operation status of the desulfurization slurry pipeline at any time, thereby facilitating the user to carry out real-time and effective treatment and intervention on the desulfurization slurry pipeline, thereby further improving the reliability of the operation of the desulfurization circulation pump.

[0049] Beneficial effects of the present invention: (1) By real-time monitoring of pressure changes, pipeline leaks can be discovered in a timely manner, thereby avoiding environmental pollution or safety accidents caused by slurry leakage and preventing greater losses.

[0050] (2) Timely detection and treatment of leaks can avoid equipment failure and shutdown caused by leaks, as well as corrosion and damage to the equipment. This not only improves the reliability of equipment operation, but also extends the service life of the equipment.

[0051] (3) By detecting leaks at an early stage, equipment damage can be avoided, thereby reducing maintenance costs and manpower investment.

[0052] (4) Timely discovery and treatment of leaks can avoid environmental pollution caused by slurry leakage and protect the ecological environment.

[0053] (5) Automatically monitor pressure and intelligently determine leakage level and treatment measures without manual intervention, significantly improving work efficiency.

[0054] Embodiment 2 Based on the same inventive concept, Figure 4 As shown, the embodiment of the present invention further provides a desulfurization slurry pipeline leakage warning device 200, comprising: The data acquisition module 210 is used to obtain the inlet pressure of the desulfurization circulation pump when the inlet pipeline of the desulfurization circulation pump is water-filled for maintenance; wherein the inlet pressure of the desulfurization circulation pump is obtained by monitoring the pressure monitoring device; The height calculation module 220 is used to calculate the inlet pressure of the desulfurization circulation pump based on the principle of fluid statics when the inlet pressure of the desulfurization circulation pump reaches a preset pressure, so as to obtain the liquid level height of the outlet pipeline of the desulfurization circulation pump; The level classification module 230 is used to determine the leakage level of the desulfurization slurry pipeline based on the liquid level of the outlet pipeline of the desulfurization circulation pump and the preset liquid level when the difference between the liquid level of the outlet pipeline of the desulfurization circulation pump and the preset liquid level is greater than a preset threshold; The measure determination module 240 is used to match the leakage level of the desulfurization slurry pipeline with the preset desulfurization slurry pipeline leakage early warning treatment measure table to determine the early warning treatment measures of the desulfurization slurry pipeline; wherein the preset desulfurization slurry pipeline leakage early warning treatment measure table is used to characterize the mapping relationship between the leakage level of the desulfurization slurry pipeline and the early warning treatment measures of the desulfurization slurry pipeline; The measure execution module 250 is used to send the early warning processing measures of the desulfurization slurry pipeline to the user's terminal device, so that the user can maintain the desulfurization slurry pipeline according to the early warning processing measures of the desulfurization slurry pipeline.

[0055] It should be understood that the device corresponds to the above-mentioned desulfurization slurry pipeline leakage warning method embodiment, and can perform the various steps involved in the above-mentioned method embodiment. The specific functions of the device can be found in the above description. To avoid repetition, the detailed description is appropriately omitted here. The device includes at least one software function module that can be stored in a memory in the form of software or firmware or solidified in the operating system (OS) of the device.

[0056] Embodiment 3 Based on the same inventive concept, an embodiment of the present invention further provides an electronic device, including: a processor and a memory, the memory storing machine-readable instructions executable by the processor, and the machine-readable instructions executing the above-mentioned desulfurization slurry pipeline leakage warning method when executed by the processor.

[0057] In a typical configuration, an electronic device includes one or more processors (CPU), input / output interfaces, network interfaces, and memory.

[0058] The memory may include non-permanent memory in a computer-readable medium, random access memory (RAM) and / or non-volatile memory in the form of read-only memory (ROM) or flash RAM. The memory is an example of a computer-readable medium.

[0059] Computer readable media include permanent and non-permanent, removable and non-removable media that can be implemented by any method or technology to store information. Information can be computer readable instructions, data structures, program modules or other data. Examples of computer storage media include, but are not limited to, phase change memory (PRAM), static random access memory (SRAM), dynamic random access memory (DRAM), other types of random access memory (RAM), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), flash memory or other memory technology, compact disk read-only memory (CD-ROM), digital versatile disk (DVD) or other optical storage, magnetic cassettes, magnetic tape magnetic disk storage or other magnetic storage devices or any other non-transmission media that can be used to store information that can be accessed by a computing device. As defined herein, computer readable media does not include temporary computer readable media (transitory media), such as modulated data signals and carrier waves.

[0060] Embodiment 4 Based on the same inventive concept, an embodiment of the present invention further provides a computer-readable storage medium storing computer instructions. When the computer instructions are executed on a computer, the computer executes the above-mentioned desulfurization slurry pipeline leakage early warning method.

[0061] Those skilled in the art will appreciate that the embodiments of the present application may be provided as methods, systems, or computer program products. Therefore, the present application may adopt the form of a complete hardware embodiment, a complete software embodiment, or an embodiment in combination with software and hardware. Moreover, the present application may adopt the form of a computer program product implemented in one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) that include computer-usable program code.

[0062] The present application is described with reference to the flowcharts and / or block diagrams of the methods, devices (systems), and computer program products according to the embodiments of the present application. It should be understood that each process and / or box in the flowchart and / or block diagram, as well as the combination of the processes and / or boxes in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing device to generate a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the processes in the flowchart and / or block diagram. Figure 1 A process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0063] These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing device to operate in a specific manner, so that the instructions stored in the computer-readable memory produce an article of manufacture comprising an instruction device, which implements the process Figure 1 A process or multiple processes and / or boxes Figure 1 A function specified in one or more boxes.

[0064] These computer program instructions can also be loaded onto a computer or other programmable data processing device so that a series of operating steps are executed on the computer or other programmable device to produce a computer-implemented process, thereby providing instructions for implementing the process in the computer or other programmable device. Figure 1 A process or multiple processes and / or boxes Figure 1 The steps for the functions specified in one or more boxes.

[0065] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. To avoid unnecessary repetition, the embodiments of the present invention will not further describe various possible combinations.

[0066] In addition, the functional modules in each embodiment of the present application can be integrated together to form an independent part, or each module can exist separately, or two or more modules can be integrated to form an independent part.

[0067] It should also be noted that the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, commodity or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, commodity or device. In the absence of more restrictions, the elements defined by the sentence "comprises a ..." do not exclude the existence of other identical elements in the process, method, commodity or device including the elements.

[0068] The above are only embodiments of the present application and are not intended to limit the present application. For those skilled in the art, the present application may have various changes and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included within the scope of the claims of the present application.

Claims

1. A desulfurization slurry pipeline leakage early warning method, the desulfurization slurry pipeline comprises a desulfurization circulation pump inlet pipeline and a desulfurization circulation pump outlet pipeline, the input end of the desulfurization circulation pump inlet pipeline is connected to the limestone slurry storage tank, the output end of the desulfurization circulation pump inlet pipeline is connected to the input end of the desulfurization circulation pump outlet pipeline, the output end of the desulfurization circulation pump outlet pipeline is connected to the desulfurization circulation pump, and the output end of the desulfurization circulation pump inlet pipeline is provided with a pressure monitoring device, characterized in that: include: When water injection maintenance is performed on the inlet pipeline of the desulfurization circulation pump, the inlet pressure of the desulfurization circulation pump is obtained; wherein the inlet pressure of the desulfurization circulation pump is monitored by a pressure monitoring device; When the inlet pressure of the desulfurization circulation pump reaches the preset pressure, the inlet pressure of the desulfurization circulation pump is calculated based on the principle of fluid statics to obtain the liquid level height of the outlet pipeline of the desulfurization circulation pump; When the difference between the liquid level height of the outlet pipeline of the desulfurization circulation pump and the preset liquid level height is greater than the preset threshold, the leakage level of the desulfurization slurry pipeline is determined based on the liquid level height of the outlet pipeline of the desulfurization circulation pump and the preset liquid level height; Match the leakage level of the desulfurization slurry pipeline with the preset desulfurization slurry pipeline leakage early warning treatment measures table to determine the early warning treatment measures for the desulfurization slurry pipeline; wherein the preset desulfurization slurry pipeline leakage early warning treatment measures table is used to characterize the mapping relationship between the leakage level of the desulfurization slurry pipeline and the early warning treatment measures for the desulfurization slurry pipeline; The early warning treatment measures of the desulfurization slurry pipeline are sent to the user's terminal equipment, so that the user can maintain the desulfurization slurry pipeline according to the early warning treatment measures of the desulfurization slurry pipeline.

2. The desulfurization slurry pipeline leakage early warning method according to claim 1 is characterized in that: Based on the principle of fluid statics, the inlet pressure of the desulfurization circulation pump is calculated to obtain the liquid level height of the outlet pipeline of the desulfurization circulation pump, including: Use the following formula to calculate the inlet pressure of the desulfurization circulation pump and obtain the liquid level height of the outlet pipeline of the desulfurization circulation pump; ;in, Indicates the liquid level height of the outlet pipeline of the desulfurization circulation pump. Indicates the inlet pressure of the desulfurization circulation pump. Indicates the preset atmospheric pressure, Indicates the preset water density, Indicates the preset gravity acceleration.

3. The desulfurization slurry pipeline leakage early warning method according to claim 1 is characterized in that: Based on the liquid level height of the outlet pipeline of the desulfurization circulation pump and the preset liquid level height, determine the leakage level of the desulfurization slurry pipeline, including: Use the following formula to calculate the liquid level height of the outlet pipeline of the desulfurization circulation pump and the preset liquid level height to determine the liquid density in the desulfurization slurry pipeline; ;in, Indicates the liquid density in the desulfurization slurry pipeline, Indicates the liquid level height of the desulfurization slurry pipeline. Indicates the preset liquid level height; The liquid density in the desulfurization slurry pipeline is classified into leakage grades to determine the leakage grade of the desulfurization slurry pipeline.

4. The desulfurization slurry pipeline leakage early warning method according to claim 3 is characterized in that: The liquid density in the desulfurization slurry pipeline is classified into leakage levels to determine the leakage level of the desulfurization slurry pipeline, including: When the liquid density in the desulfurization slurry pipeline is greater than the first preset liquid density and less than the second preset liquid density, the leakage level of the desulfurization slurry pipeline is determined to be a first-level leakage; When the liquid density in the desulfurization slurry pipeline is greater than the second preset liquid density and less than the third preset liquid density, the leakage level of the desulfurization slurry pipeline is determined to be a secondary leakage; When the liquid density in the desulfurization slurry pipeline is greater than the third preset liquid density, the leakage level of the desulfurization slurry pipeline is determined to be a third-level leakage; Among them, the third preset liquid density>the second preset liquid density>the first preset liquid density.

5. The desulfurization slurry pipeline leakage early warning method according to claim 1 is characterized in that: The method further comprises: When the inlet pressure of the desulfurization circulation pump reaches the preset pressure and the user's trigger operation on the early warning input display control is monitored, the inlet pressure of the desulfurization circulation pump is calculated based on the principle of fluid statics to obtain the liquid level height of the outlet pipeline of the desulfurization circulation pump.

6. The desulfurization slurry pipeline leakage early warning method according to claim 3 is characterized in that: The method further comprises: When the difference between the liquid level height of the outlet pipeline of the desulfurization circulation pump and the preset liquid level height is greater than the preset threshold, the leakage timing starts. When the difference between the liquid level height of the desulfurization slurry pipeline and the preset liquid level height is less than the preset threshold, the leakage timing is stopped and the duration of the leakage timing is determined.

7. The desulfurization slurry pipeline leakage early warning method according to claim 6 is characterized in that: The method further comprises: The inlet pressure of the desulfurization circulation pump, the liquid level of the desulfurization slurry pipeline, the preset liquid level, the leakage level of the desulfurization slurry pipeline and the duration of the leakage timing are output and displayed on the DCS system.

8. A desulfurization slurry pipeline leakage warning device, characterized in that: include: The data acquisition module is used to obtain the inlet pressure of the desulfurization circulation pump when the inlet pipeline of the desulfurization circulation pump is water-filled for maintenance; wherein the inlet pressure of the desulfurization circulation pump is monitored by a pressure monitoring device; A height calculation module is used to calculate the inlet pressure of the desulfurization circulation pump based on the principle of fluid statics when the inlet pressure of the desulfurization circulation pump reaches a preset pressure, so as to obtain the liquid level height of the outlet pipeline of the desulfurization circulation pump; A level classification module, used to determine the leakage level of the desulfurization slurry pipeline based on the liquid level height of the outlet pipeline of the desulfurization circulation pump and the preset liquid level height when the difference between the liquid level height of the outlet pipeline of the desulfurization circulation pump and the preset liquid level height is greater than a preset threshold value; A measure determination module is used to match the leakage level of the desulfurization slurry pipeline with the preset desulfurization slurry pipeline leakage early warning treatment measure table to determine the early warning treatment measures for the desulfurization slurry pipeline; wherein the preset desulfurization slurry pipeline leakage early warning treatment measure table is used to characterize the mapping relationship between the leakage level of the desulfurization slurry pipeline and the early warning treatment measures for the desulfurization slurry pipeline; The measure execution module is used to send the early warning treatment measures of the desulfurization slurry pipeline to the user's terminal device, so that the user can maintain the desulfurization slurry pipeline according to the early warning treatment measures of the desulfurization slurry pipeline.

9. An electronic device, characterized in that: include: A processor and a memory, wherein the memory stores machine-readable instructions executable by the processor, and when the machine-readable instructions are executed by the processor, the desulfurization slurry pipeline leakage early warning method described in any one of claims 1-7 is executed.

10. A computer-readable storage medium storing computer instructions, characterized in that: When the computer instructions are executed on a computer, the computer is enabled to execute the desulfurization slurry pipeline leakage early warning method according to any one of claims 1 to 7.

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