回水

BOT结合BT模式的污水/回水处理系统价格调整模型

A model of treatment price adjustment of wastewater and backwater in BOT and BT mode

BOT结合BT模式厂网共建污水/回水处理计价模型研究

Study of the Valuation Model on Wastewater and Backwater Treatment of Plant-Network Co-construction in BOT and BT mode

在供热系统中，需要的水温较高时，由于回水温度高而导致CO2跨临界水源热泵能效比下降。

Performance of a CO 2 transcritical cycle water source heat pump heating system will worsen with rising of return water temperature of the system .

经过集中水处理后的回水COD、BOD5、TH、SS和Mg（2＋）的值有所下降，BOD5去除率为54.38%，悬浮物去除率为67.54%；

After concentration treatment of the water , the values of COD , BOD5 , TH , SS and Mg2 + decreased ;

大坝发电有限责任公司II期锅炉空气预热器暖风器投入率底的原因，主要是由于疏水系统不合理，造成回水不畅，管道振动大。

Analyzed the main reason of low power for boiler air preheater and steam air heater because unreasonable drainage system lead to back water not flow smoothly and pipe vibration very big .

如果降低回水温度，就要求不同温度的热水分级利用。CO2跨临界水源热泵两级供热系统可以实现能量的分级利用。

Lowering the return water temperature requires stepped energy using according to the temperature level of water , which can be achieved by using CO 2 transcritical water source heat pump two-stage heating system .

磷酸生产装置的循环冷却水具有含氟、含磷，pH值较低，悬浮物含量较高、循环回水温度较高的特点。

The recirculating cooling water for phosphoric acid production plants is featured by low content of fluorine . low content of phosphorus , low pH value , high contents of suspended matters and high temperature of recirculating cooling water .

介绍了用模拟回水测定参数ηCa和f的方法，并结合电厂实际说明了如何用该公式确定阻垢剂用量。

The determination of the parameters η Ca and f by simulated backwater is introduced . It combines the power plant with practice , and explains how to use the formula to determine the scale inhibitor concentration .

三峡回水区DOM的F-7000三维荧光光谱特征

Determination of Three-dimensional Fluorescence Characteristics of Dissolved Organic Matter by HITACHI F-7000 Fluorescence Spectrophotometer in Three Gorges Backwater Area

WNS系列燃油（气）热水锅炉回水装置的设计及布置

The Design and Arrange of the Returning Water Device of WNS Serial Gas & Oil-fired Hot Water Boiler

三峡水库135m水位蓄水典型次级河流回水段富营养化监测评价

Eutrophic investigation and assessment on backwater reaches of several typical branches of three Gorges Reservoir at 135m water level

通过测试冷冻水、冷却水流量及其供回水温度，得到了制冷系统的COP值和冷却塔的能效；

Through testing the flow rate of chilled water and cooling water and the supply water temperature and return water temperature , the value of COP of refrigeration system and the EER of cooling tower were gotten .

125MW机组给水泵密封水回水系统改造

Modification to the backwater system of feed water pump sealing for the 125 ? MW generating unit

长洲枢纽回水计算结果表明：当水库在18.6m水位运行，末端判别标准取0.1m时，其回水长度随流量变化存在极值现象；

The results of backwater calculation at Changzhou Reservoir demonstrated that , there exited an extremal value of backwater length while the water level was 18.6m and the criterion for the terminal of backwater was 0.1m .

应用结果表明，清洗后2条回水管线残留垢厚不超过2mm，管线的防腐涂层完好，灰场回水管线流量达到了预期要求。

The application result shows that the remaining fouling is no more than 2 mm thick for the two water returning pipe after cleaning , the pipe anti-corrosion coatings are integral and the flow of the water returning pips for the ash yard meets the anticipated requirements .

本文以云南曲靖热电厂二期扩建（2×300MW）工程为研究对象，主要研究了单元机组的负荷控制及回水加热系统的建模问题。

The object of study is the second extension project of Qujing thermo-electric Plant ( 2x300MW ) of Yunnan . Two major problems , there are coordinated control system of the generator-transformer unit and the modeling of the backwater heating system , were studied .

在三峡水库二期蓄水后，135m水位线下的支流尽管多数仍保持狭长的河流态势，但回水段的流速明显降低，成为名副其实的人工湖泊，适合藻类生长。

Though the tributaries under 135 m lever maintained slim flow pattern after second water storage in the Three Gorges Reservoir , the speed in the backwater reach reduced obviously , so it became the lake which was suitable for growth of algae .

山区冲积性河流变动回水区航道整治技术研究

Channel Regulation Technique at Fluctuating Backwater Area in Mountainous Alluvial River

山区河流小型水电站回水末端计算

Computation of backwater end for small hydropower station on mountainous river

在静水长度以上河段底坡变缓后，回水长度会相应增大；

Backwater length will increase with the slower of bottom slope .

综合尾矿回水对铁矿石正浮选影响的研究

Effect of Synthetic Tailings backwater on Positive floating of Iron ore

关于尾矿库回水塔取水方式分析

Analysis of watering method about return water tower in tailing pond

尾矿回水中的几种离子对铁正浮选影响

Effect of several ions of tailing back-water on iron direct flotation

枢纽回水不衔接河段航道设计参数的确定

Design Parameter of Channel Technique in Disjunct Reach of Hinge Backwater

供热系统最佳供回水温度的确定

Determining Optimum Temperatures of Water Supply & Return of Heating System

推荐采用热水回水温度控制方案。

Recommends the control scheme by monitoring the return water temperature .

电化学处理选磷尾矿水的回水选矿试验

Test on Recycling Water by Electrochemical Process into Flotation of Phosphate Ores

供热管网回水温度过高的原因分析及其调节

Analysis and adjustment of superheat of backflow water in heat supply network

变动回水区河段的设计最低通航水位确定

Determination of Designed Lowest Navigable Level of Reach in Fluctuating Backwater Area

变动回水区航道整治原则。根据河势合理规划单一微弯航槽；

( 3 ) Regulation principles of waterway in fluctuating backwater area .