Multi-mode comprehensive pollution tracing method

A pollution traceability, multi-mode technology, applied in measurement devices, instruments, scientific instruments, etc., can solve the problems of difficult closed monitoring of open spaces, irregular emissions, and unfavorable sailing speed, etc., to improve the accuracy of traceability and traceability. Accurate effect

CN113624921APending Publication Date: 2021-11-09HANGZHOU PUYU TECH DEV CO LTD
6 Cites 5 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2021-11-09

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
Patent Text Reader

Abstract

The invention provides a multi-mode comprehensive pollution tracing method. The method comprises the following steps: (A1) constructing a meteorological field; obtaining an overall wind field of the industrial park and wind speed profiles for processing different building blocks, and obtaining a flow field of the industrial park; (A2) constructing a diffusion model; selecting diffusion models according to different molecular weights of various pollutants, wherein the diffusion models comprise a Gaussian plume diffusion model and an SLAB diffusion model. (A3) performing pollution source traceability inversion; selecting a diffusion model according to the standard-exceeding pollutants; for a possible pollution emission source, by utilizing the flow field and simulating pollutant concentration data at each coordinate in the downwind direction under different levels of source intensities and correction coefficients, obtaining the deviation degree of a real pollutant monitoring value and a simulation value of each station, and when the deviation degree is minimum, outputting the position and the source intensity of the emission source; and outputting a pollutant diffusion range and the concentration of partial positions in the range by utilizing the position and the source intensity of the emission source, the current meteorological field and the selected diffusion model. The method has the advantages of accurate traceability and the like.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention relates to pollution monitoring, in particular to a multi-mode comprehensive pollution traceability method. Background technique

[0002] At present, the main problems of the pollution status of industrial parks include: there are many pollution sources in industrial parks, and the discharge is irregular. The distribution of buildings such as chimneys, storage tanks and high towers in enterprises will change the normal diffusion path. In addition, it is difficult to close monitoring and routine monitoring in open spaces such as factory boundaries. Due to the limited time and space coverage and the low quality of enterprise emission inventories, the emission plumes and their migration and diffusion paths are amorphous, and the pollution source monitoring and traceability are difficult. However, the existing atmospheric models are mostly used for diffusion simulation when the emission source parameters are known, and it is difficult to real...

Examples

Embodiment 1

[0023] figure 1 The flow chart of the multi-mode comprehensive pollution traceability method of the embodiment of the present invention is given, as figure 1 As shown, the multi-mode comprehensive pollution traceability method includes the following steps:

[0024] (A1) Construct a meteorological field; obtain the overall wind field of the industrial park and process the wind speed profiles of different building blocks to obtain the flow field of the industrial park;

[0025] (A2) Build a diffusion model; select the diffusion model according to the molecular weight of various pollutants, and the diffusion model includes a Gaussian plume diffusion model and a SLAB diffusion model;

[0026] (A3) Pollution source traceability and inversion; obtain excessive pollutants according to the data of monitoring stations, and select a diffusion model according to the excessive pollutants;

[0027] According to the monitoring data of multiple sites, the location of the emission source an...

Embodiment 2

[0046] An application example of the multi-mode comprehensive pollution traceability method according to Embodiment 1 of the present invention in an industrial park.

[0047] In this application example, the multi-mode comprehensive pollution traceability method includes the following steps:

[0048] (A1) Construct the meteorological field; obtain the overall wind field of the industrial park and the wind speed profiles of different building blocks, and obtain the flow field of the industrial park. The way to construct the meteorological field is:

[0049] Obtain the three-dimensional structure of the buildings in the industrial park, and mark the type and purpose of the buildings;

[0050] Layout monitoring points in the industrial park grid to obtain pollutant data and meteorological data;

[0051] Combining the meteorological data and the data of the Meteorological Bureau, use the WRF model to simulate the overall wind field of the industrial park;

[0052] The building d...