System for realizing automatic and continuous cleanness detection of multiple sample points

A technology of sampling points and cleanliness, applied in the heat treatment of cold-rolled metal strips, home appliance panel production, and mid-to-high-end automobiles, to increase the difficulty of operation, increase the probability of misjudgment, and improve the control level

Inactive Publication Date: 2011-03-30
吕军 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is: in order to reasonably determine the production process, improve the surface quality of medium and high-grade automobiles and household

Method used

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  • System for realizing automatic and continuous cleanness detection of multiple sample points
  • System for realizing automatic and continuous cleanness detection of multiple sample points
  • System for realizing automatic and continuous cleanness detection of multiple sample points

Examples

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Effect test

Embodiment 1

[0020] Embodiment 1. A system for realizing automatic and continuous cleanliness detection of multiple sampling points

[0021] A system for automatic and continuous cleanliness detection of multiple sampling points (referred to as the detection system), its structure is as follows figure 1 Shown: It is mainly composed of three parts: the furnace gas sampling supervisor, the continuous automatic collection branch of furnace gas pollutants, and the metering and gas return supervisor.

[0022] The first part is the furnace gas sampling supervisor, such as figure 1 As shown: along the airflow direction, it is composed of sampling gas cooler 2, gas distributor 3, first manual switch valve 4, pressure detection instrument 5, pressure signal conversion display instrument 6, and first automatic switch valve 8, followed by gas pollution The access point d of the object collector branch. In addition, there are three purge nitrogen access points a, b, and c, which are used for the s...

Embodiment 2

[0028] Embodiment 2. Realize the application of the automatic continuous cleanliness detection system of multiple sampling points

[0029] The detection system provided by the present invention can be used in the detection of the cleanliness of the atmosphere at multiple sampling points in the continuous annealing furnace in the field of medium and high-end automobile or household appliance panel production. The detection system is based on the following detection methods, specifically: use a sampling metering pump to pump out the gas in the furnace chamber of the annealing furnace, control the automatic switch valve in the main circuit to select the collector, and make the furnace gas pass through the currently selected collector according to the set flow rate , various particles in the furnace gas are blocked in the collector. The controller sorts each sampling point and the collector correspondingly according to the setting, and according to the sorting, opens the channel c...

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Abstract

The invention relates to a system for realizing the automatic and continuous cleanness detection of multiple sample points. The structure of the system comprises a furnace gas sampling main pipe, a furnace gas collector branch pipe and a metering and gas returning main pipe, wherein the input end of the furnace gas sampling main pipe is communicated with the inside of a furnace chamber of an annealing furnace through a pipe, the output end of the furnace gas sampling main pipe is connected with the input end of a furnace gas pollutant continuous and automatic collection branch pipe and the output end of a nitrogen blowing circuit by through pipes; the furnace gas collector branch pipe is provided with two groups of parallelly connected collection branch pipes of which the output ends are connected with the input end of the metering and gas returning main pipe through pipes respectively; the output end of the metering and gas returning main pipe is communicated with the inside of the furnace chamber of the annealing furnace; and the nitrogen blowing pipe is communicated with a nitrogen station and is connected with the pipes of the gas distributor (3) and automatic switching valve (8) of the furnace gas sampling main pipe in parallel through two manner switching valves (4) connected with the nitrogen blowing pipe. The system can detect the pollutants in the furnace accurately and provides a basis for improving product quality and reasonably arranging furnace stop for overhaul and cleaning.

Description

technical field [0001] The invention relates to the technical field of heat treatment of cold-rolled metal strips, in particular to a system for realizing automatic and continuous cleanliness detection of multiple sampling points, which is used in the production fields of medium and high-end automobiles and home appliance panels. Background technique [0002] With the increasing demand for high surface quality products in the automobile and home appliance industries, the requirements for product surface quality are becoming more and more stringent, which promotes the development of new technologies for continuous galvanizing and continuous annealing production lines. However, the continuous annealing furnace as the core equipment is subject to high temperature, Affected by factors such as airtightness, some key issues that restrict the improvement of product quality have not been broken through. The detection of the cleanliness of the gas in the furnace under the production s...

Claims

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Application Information

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IPC IPC(8): C21D9/56G01N15/06
Inventor 吕军郑剑辉廖慧
Owner 吕军
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