CN-121302503-B - Method, device, equipment, medium and product for predicting blockage reason of plate exchanger

CN121302503BCN 121302503 BCN121302503 BCN 121302503BCN-121302503-B

Abstract

The application discloses a method, a device, equipment, a medium and a product for predicting the blockage cause of a plate-type exchanger, and relates to the technical field of coastal engineering; the target engineering sea area comprises a plurality of plate exchangers, a calculation area is determined according to boundary conditions of the three-dimensional inclined pressure ocean numerical model, the boundary conditions comprise surface boundary conditions, bottom boundary conditions and fixed boundary conditions, the three-dimensional inclined pressure ocean numerical model is configured based on the calculation area, the three-dimensional inclined pressure ocean numerical model after operation and configuration simulates a water body structure in the calculation area to obtain observation data in the target engineering sea area in a target time period, the observation data comprise tide levels, flow rates and flow directions of observation points, and reasons for occurrence of plate exchanger blockage are determined according to the observation data. The application can provide reliable data support for the analysis of the cause of the blockage.

Inventors

LIU GUIZE
ZHANG YUNLEI
JIANG HENGZHI

Assignees

国家海洋环境监测中心

Dates

Publication Date: 20260508
Application Date: 20251014

Claims (9)

1. The method for predicting the blockage reason of the plate exchanger is characterized by comprising the following steps of: Constructing a three-dimensional oblique pressure ocean numerical model in a preset space range of a target engineering sea area, wherein the target engineering sea area comprises a plurality of plate exchangers; determining a calculation domain according to boundary conditions of the three-dimensional oblique pressure ocean numerical model, wherein the boundary conditions comprise a surface layer boundary condition, a bottom boundary condition and a solid boundary condition; Configuring the three-dimensional oblique pressure ocean numerical model based on the calculation domain; The three-dimensional oblique pressure ocean numerical model after operation configuration simulates the water body structure in the calculation domain to obtain the observation data in the target engineering ocean domain in a target time period, wherein the observation data comprises tide levels, flow rates and flow directions of all observation points; determining the reason for the blockage of the plate exchanger according to the observation data; the three-dimensional oblique pressure ocean numerical model is configured based on the calculation domain, and specifically comprises the following steps: inputting initial conditions and open boundary conditions into the three-dimensional oblique pressure ocean numerical model based on the calculation domain; inputting an atmospheric boundary condition based on the initial condition; Determining bottom friction and horizontal vortex viscosity coefficients of the three-dimensional oblique pressure ocean numerical model based on the atmospheric boundary conditions; and determining the inner die time step and the outer die time step of the three-dimensional inclined pressure ocean numerical model according to the bottom friction and the horizontal vortex viscosity coefficient.
2. The method for predicting the cause of plugging of a plate exchanger according to claim 1, wherein the initial condition is a temperature salinity field, the temperature salinity field being derived from HYCOM analysis data; the open boundary condition comprises applying tide level and warm salt driving data, wherein the warm salt driving data is derived from HYCOM analysis data, and the frequency of applying the tide level and warm salt driving data is once every 3 hours; the atmospheric boundary condition is 10-meter height wind field data of the sea surface per hour, and the 10-meter height wind field data of the sea surface per hour are derived from an ECMWF 5 th generation analysis data set.
3. The method for predicting the cause of plugging in a plate exchanger according to claim 1, wherein the surface boundary conditions include a wind pressure component and a net heat flux, the bottom boundary conditions include a bottom pressure component and a bottom groundwater flux, and the solid boundary conditions include a normal speed component of the boundary, a precipitation rate, and an evaporation rate.
4. The method for predicting the cause of plugging of a plate exchanger according to claim 1, wherein the control equation set of the three-dimensional diagonal pressure ocean numerical model includes a continuity equation, a momentum equation, a density equation, a temperature equation, and a salinity equation.
5. A method for predicting the cause of a plate exchanger blockage according to claim 1, wherein determining the cause of the plate exchanger blockage from the observed data comprises: When the flow velocity of the front end of the water intake of the plate type exchanger is higher than the flow velocity set value of the rear end of the water intake, the reason that the plate type exchanger is blocked is judged to be that sediment is easily sucked into the water intake culvert.
6. A plate exchanger plugging cause prediction device, wherein the plate exchanger plugging cause prediction device applies the plate exchanger plugging cause prediction method according to any one of claims 1 to 5, the plate exchanger plugging cause prediction device comprising: The three-dimensional inclined pressure ocean numerical model construction module is used for constructing a three-dimensional inclined pressure ocean numerical model in a preset space range of a target engineering sea area, wherein the target engineering sea area comprises a plurality of plate exchangers; The calculation domain determining module is used for determining a calculation domain according to boundary conditions of the three-dimensional oblique pressure ocean numerical model, wherein the boundary conditions comprise a surface layer boundary condition, a bottom boundary condition and a solid boundary condition; the configuration module is used for configuring the three-dimensional inclined pressure ocean numerical model based on the calculation domain; The observation data simulation module is used for operating the configured three-dimensional inclined pressure ocean numerical model to obtain observation data in the target engineering ocean area in a target time period; And the reason determining module is used for determining the reason for the blockage of the plate type exchanger according to the observation data.
7. A computer device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, characterized in that the processor executes the computer program to implement the method of predicting a cause of a plate exchanger blockage according to any one of claims 1-5.
8. A computer-readable storage medium, on which a computer program is stored, characterized in that the computer program, when being executed by a processor, implements the method for predicting the cause of a clogging of a plate exchanger according to any one of claims 1 to 5.
9. A computer program product comprising a computer program, characterized in that the computer program, when being executed by a processor, implements the method for predicting the cause of a clogging of a plate exchanger according to any one of claims 1-5.

Description

Method, device, equipment, medium and product for predicting blockage reason of plate exchanger Technical Field The application relates to the technical field of coastal engineering, in particular to a method, a device, equipment, a medium and a product for predicting the blockage reason of a plate-type exchanger. Background In coastal engineering, plate exchangers (Sea Water Cooling Heat Exchanger, SEC) often suffer from pressure differential fluctuations due to biological blockages, affecting the efficiency and stability of the plant operation. However, the analysis of the cause of the clogging of the plate exchanger is lacking, and thus, the targeted prevention of the clogging of the plate exchanger cannot be achieved. Disclosure of Invention The application aims to provide a method, a device, equipment, a medium and a product for predicting the cause of blockage of a plate-type exchanger, which can provide reliable data support for blockage cause analysis. In order to achieve the above object, the present application provides the following solutions: In a first aspect, the present application provides a method for predicting a cause of a plate exchanger blockage, the method comprising: Constructing a three-dimensional oblique pressure ocean numerical model in a preset space range of a target engineering sea area, wherein the target engineering sea area comprises a plurality of plate exchangers; determining a calculation domain according to boundary conditions of the three-dimensional oblique pressure ocean numerical model, wherein the boundary conditions comprise a surface layer boundary condition, a bottom boundary condition and a solid boundary condition; Configuring the three-dimensional oblique pressure ocean numerical model based on the calculation domain; The three-dimensional oblique pressure ocean numerical model after operation configuration simulates the water body structure in the calculation domain to obtain the observation data in the target engineering ocean domain in a target time period, wherein the observation data comprises tide levels, flow rates and flow directions of all observation points; And determining the reason for the occurrence of the blockage of the plate exchanger according to the observation data. Optionally, configuring the three-dimensional oblique pressure ocean numerical model based on the calculation domain specifically includes: inputting initial conditions and open boundary conditions into the three-dimensional oblique pressure ocean numerical model based on the calculation domain; inputting an atmospheric boundary condition based on the initial condition; Determining bottom friction and horizontal vortex viscosity coefficients of the three-dimensional oblique pressure ocean numerical model based on the atmospheric boundary conditions; and determining the inner die time step and the outer die time step of the three-dimensional inclined pressure ocean numerical model according to the bottom friction and the horizontal vortex viscosity coefficient. Optionally, the initial condition is a temperature salinity field, wherein the temperature salinity field is derived from HYCOM analysis data; the open boundary condition comprises applying tide level and warm salt driving data, wherein the warm salt driving data is derived from HYCOM analysis data, and the frequency of applying the tide level and warm salt driving data is once every 3 hours; the atmospheric boundary condition is 10-meter height wind field data of the sea surface per hour, and the 10-meter height wind field data of the sea surface per hour are derived from an ECMWF 5 th generation analysis data set. Optionally, the surface boundary conditions include a wind pressure component and a net heat flux, the bottom boundary conditions include a bottom pressure component and a bottom groundwater flux, and the solid boundary conditions include a normal speed component of the boundary, a precipitation rate, and an evaporation rate. Optionally, the control equation set of the three-dimensional oblique pressure ocean numerical model comprises a continuity equation, a momentum equation, a density equation, a temperature equation and a salinity equation. Optionally, determining the cause of the blockage of the plate exchanger according to the observed data specifically comprises: When the flow velocity of the front end of the water intake of the plate type exchanger is higher than the flow velocity set value of the rear end of the water intake, the reason that the plate type exchanger is blocked is judged to be that sediment is easily sucked into the water intake culvert. In a second aspect, the present application provides a plate exchanger blockage cause prediction apparatus, characterized in that the plate exchanger blockage cause prediction apparatus applies any one of the plate exchanger blockage cause prediction methods, the plate exchanger blockage cause prediction apparatus comprising: The three-dimensional incli