Notion of Variable Air Volume System A Dynamic Managing Mode for Blowing Rate in Local Ventilation

Trends A Dynamic Managing Mode for Blowing Rate in Local Ventilation

局部通风风量动态管理

Abstract: A paint vapour treatment by means of blowing and drawing ventilation in an airtight workroom is suggested in the article. Optimal ventilating parameters of push-pull flow dust control in large spaces

文摘：提出在密闭喷漆作业间，采用吹吸式通风法对作业间的漆雾进行治理的方案。吹吸气流控制大空间粉尘最佳通风参数的研究

A paint vapour treatment by means of blowing and drawing ventilation in an airtight workroom is suggested in the article.

提出在密闭喷漆作业间，采用吹吸式通风法对作业间的漆雾进行治理的方案。

Blowing and drawing ventilation used to treat paint vapour

吹吸式通风法在油漆漆雾治理中的应用

In the case adjust process, it trains the hierarchical mixture of experts model with this group of similar cases, then particle swarm optimization algorithm is applyed to optimize the model parameters. Finally, calculate oxygen volume blowing in current production condition.

在案例的调整过程中，采用检索出的相似案例训练分层混合专家模型，并用微粒群算法优化模型参数，将当前炉次的情况代入到这个专家模型，进而计算出当前炉次的吹氧量。

Conclusion: Blowing current at room vent agitate the particulate matter in the room that lead an increase of inhalable particles ′ concentration.

结论：房间中可吸入颗粒物的浓度的增高是由于送风口的吹扫气流使得房间静止的颗粒物被吹扫搅起的结果。

The results from laboratory tests show that the maximum increments of SO2 conversion efficiency are varied from 1.17% to 3.74% depending on the O2/ SO2 ratio, blowing ratio and switching period.

实验室试验结果表明，在不同的氧硫比、吹气比和切换周期的条件下，SO2转化率的最大增值为1.17%～3.74%。

The result of ammonia nitrogen blow-off experiment showed that under the condition of water temperature 20.6 ℃, pH value 10.8, and the blowing period 4h, the ammonia nitrogen removal efficiency was 80.8%.

氨氮吹脱试验结果表明，在水温为20.6℃、pH值为10.8、曝气时间为4h的条件下，氨氮去除率为80.8%。

A model of optimized dephosphorization in the primary blowing period for top-blown oxygen converter

氧气转炉吹炼前期的最佳化脱磷工艺基础

The kernel of the converter blowing procedure control is the blowing endpoint control model which is made up of three submodels.

转炉炼钢过程控制的核心是吹炼终点控制模型，该模型又由三个子模型组成。

It is an important method for science production organization of steelmaking, which control converter blowing process by computer.

用计算机控制转炉冶炼过程，是科学的组织炼钢生产的重要手段。

The design and implementation of resc, a real time expert system for converter blowing control

转炉吹炼实时控制专家系统RESC的设计与实现

For high efficiency BOF, one converter blowing system, capacity is 190~ 280 t;

对于高效转炉，采用一座转炉吹炼制，其容量范围为190～280t。

The full automatic control technique for converter blowing process

转炉全自动吹炼技术

Discussion on Converter Blowing System in Guixi Smelter

贵冶转炉吹炼制度探讨

Implementing the converter blowing control with an object-oriented programming method

用面向对象的方法实现转炉吹炼控制模型

Due to the special structure and strict technical requirements of the front shock absorber sleeve of motorcycle, which leads to casting defects, such as shrinkage porosity, surface blowhole, are very easy to occur in production.

铝合金摩托车液压式前减震器筒体特殊的结构、严格的技术要求，导致生产中铸件很容易出现缩松、皮下气孔等缺陷。

Discussing various influence factors of ductile iron's surface blowhole defects indicates that bringing various gases in the molten metal or on the interface with the sand mould is inevitable.

对影响球墨铸铁件皮下气孔的各种因素分析表明，铁液中气体的产生有其必然性，通过减少气体的发生量以防止皮下气孔的方法并不是都能奏效。

No surface blowhole formed in cast pipe when the amount of gas evolution from the coating of pipe model for water-cooled centrifugal cast was less than 5.5mL/g.

当水冷法管模涂料发气量≤55mL/g时，铸管表面不产生气孔缺陷。

Study on Making Use of Graphitizing Expansion to Eliminate Surface Blowhole of Ductile Cast Iron

利用石墨化膨胀消除球铁皮下气孔的研究