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A water footprint accounting and online control method for glass substrate production

A glass substrate and control method technology, applied in the field of water resources management, to achieve the effects of reducing total water consumption, reducing water resource costs, reducing pollution discharge and treatment costs

Active Publication Date: 2021-03-16
BEIJING UNIV OF TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Currently, there are no documents or patents related to the water footprint method and application of this glass substrate production process

Method used

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  • A water footprint accounting and online control method for glass substrate production
  • A water footprint accounting and online control method for glass substrate production
  • A water footprint accounting and online control method for glass substrate production

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Embodiment Construction

[0063] According to the accompanying drawings in the following figure 1 and figure 2 , and the implementation examples further illustrate the invention.

[0064] Such as figure 1 and figure 2 As shown, the accounting and on-line control method of the water footprint of glass substrate production is based on the enterprise DCS system, including water footprint measurement and model on-line control. The two parts are integrated in the central control computer system and realized according to specific algorithms and specific steps. The specific steps as follows:

[0065] Step 1. Establish an accounting and online control system for the water footprint of glass substrate production, with the central control computer as the core, including two parts: measurement and model online control.

[0066] In the metering section, set up the following flow meters:

[0067] Fresh water flowmeter, installed at the well and water supply pipes, used to accurately measure the replenishment...

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Abstract

The invention relates to a glass substrate production water footprint accounting and online control method, which is realized through a glass substrate production water footprint accounting and onlinecontrol system based on an enterprise DCS system. A waste water COD concentration monitor, several water quantity monitors and a control index feedback module are constructed; various glass substrateproduction processes are monitored in real time; accordingly, the effective water consumption, the water resource circulation utilization rate, the water resource efficiency and the water footprint are calculated; and, by adoption of strategies of a water quota mandatory target, a water use efficiency control target and a circulating water utilization rate optimization target, water resource distribution, optimization of the water resource efficiency and waste water COD emission and optimization of circulating water utilization are adjusted according to graded targets. Compared with the priorart, the glass substrate production water footprint accounting and online control method in the invention has the advantages that: the water resource is saved; the water resource utilization efficiency is increased; the enterprise running cost is reduced; use of the glass substrate production water resource is managed and controlled systematically and scientifically; the enterprise greenization and the intelligent production level are improved; and green and sustainable development of the glass substrate industry is promoted.

Description

technical field [0001] The invention belongs to the field of water resources management in the whole process of glass substrate production, and specifically relates to the water footprint calculation and online control method of glass substrate production. Background technique [0002] Water is the source of life, the key to production, the foundation of ecology, and an important basic resource related to national security and development! China is one of the 13 countries with the most scarce per capita water resources in the world, and the distribution of time and space is extremely uneven. In recent years, the contradiction between supply and demand of water resources due to extensive use patterns and serious pollution has become increasingly prominent. The crisis of water resources has become the most serious resource crisis facing mankind at present, and its sustainable use and management has attracted widespread attention from all over the world. The sustainable use an...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G05B19/418
CPCG05B19/4183G05B19/41865Y02P90/02
Inventor 龚先政王宇龙刘宇李小青孙博学陈文娟崔素萍高峰
Owner BEIJING UNIV OF TECH
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