喷头流量

基于FLUENT的防尘口罩泄漏性试验装置喷头流量检测分析

Measurement and Analysis of Nozzle Flow in Respirator Leakage Tester Based on FLUENT

圆形喷灌机非旋转喷头流量系数的研究

Study on the Discharge Coefficient of Nonrotatable Sprays for Center-pivot System

计算了喷头流量和索太尔雾滴直径dsauter。

The flux and Sauter mean diameter d sauter were computed .

液体肥料施用过程中喷头流量影响因素的分析

The Analysis on Factors which Effecting The Amount of Liquid Fertilizer Sprayed by Nozzles

此时转动频率变慢，喷头流量增大2.92%。

The running frequency slowed , and the flow of the sprinkler increased by 2.92 % .

为研究各因素对喷雾性能的影响，在风送喷雾试验台上进行雾滴直径分布、喷头流量测定以及垂直面内雾量分布试验。

To investigate factors influencing spraying performances , droplet diameter distribution , nozzle discharge and spray distribution on vertical planes were measured on air-assisted spraying experiment equipment .

研究还指出无论在何种通风条件下，随着喷头流量速率的提高和喷头个数的增加，烟气均可能发生严重的沉降。

It is highlighted that in both ventilation conditions , the serious smoke logging could happen when increasing the number and the mass flow rate of the sprinklers .

模型所需的输入参数包括：喷头流量速率、喷头孔径、水颗粒初始粒径、水颗粒初始温度、喷射角度、初始烟气层厚度及温度。

The model input quantities are : water flow rate , orifice diameter , droplet diameter , spray angle , initial smoke layer thickness and temperature , and ambient air temperature .

设置不同的喷雾技术参数组合，对风场速度分布、雾滴粒径、喷头流量、雾量沉积、雾滴分布等进行测试。

Different parameter was set up with combinations . The speed of wind distribution , the size of droplet , nozzle flow , fog deposition amount and droplet distribution were tested .

试验台可以对单喷头的流量、喷幅、均匀性及最佳喷雾组合进行测定。

The test bench can measure the flow and spray painting of single nozzle , and the spray uniformity of double spray nozzle .

结果表明，变量喷头的流量与射程平方和转速的乘积成正比。

The operating equation indicates that the discharge of the variable-rate sprinkler is proportional to the product of rotating speed and square spray range .

试验表明，两种喷头的流量、喷雾角及雾量分布变异系数等参数的一致性较好。

The conclusions indicate that the flux , the spray angle and the spray distribution of the same model spray nozzle are very accordant .

研究表明：隙控式全射流喷头的流量大于试验用PY2摇臂式喷头8%左右，射程比摇臂式喷头的射程明显加大，最大增幅达到31%。

Results show that the flow rate of fluidic sprinkler is about 8 % more than that of impact sprinkler tested , while sprinkler pattern radius obviously increases , almost by 31 % .

通过具体试验验证灭火时间、喷射时间、灭火浓度等设计参数，获得了标准喷头的流量系数和压力与喷射率曲线，为系统设计确定喷头型号提供可靠依据；

Experiments have been done to verify the parameters such as the fire extinguishing time , discharge time , fire extinguishing concentration to obtain the flow coefficient and pressure as well as the discharge rate curve .

最后通过实验测定细水雾喷头的流量特性、雾化角、雾场空间的分布和雾化粒径。并进行灭火实验，和国内、国际上的喷头产品进行对照。

Finally , flow features , the angle of atomization , the distribution of atomization space and the particle diameter of the fine-spray nozzle are determined by trails and fire-extinguishing experiments are made to compare with that of other nozzles both at home and abroad .

考察了三种具有不同孔径和孔数目的喷头、氯气流量和脱水冷阱温度等对JSOG出口的O2（1Δ）浓度、O2（1Δ）分压、氯利用率及水蒸气含量的影响。

The O 2 ( 1 Δ) concentration , Cl 2 utilization rate and water content are measured using different injectors at different chlorine flow rate , cold trap temperature .

试验台能够精确测量喷头的总流量、雾量分布、喷雾角、系统压力以及现场环境温度等参数。

The spray total flux , spray distribution , spray angle , hydraulic pressure and environment temperature can be accurately measured on the distribution bench .

采用极限理论和二重积分的数学方法推导了描述变量喷头转速、流量和射程之间瞬时变化关系的工作方程。

The operating equation that describes the internal connection of discharge , rotating speed and spray range of the variable-rate sprinkler was derived using mathematical theory of limitation and double integral .

扇形雾喷头的结构参数主要包括喷头内腔直径、相对切深和V型槽角度，性能参数主要包括喷头流量、喷雾角及雾量分布。

The configuration parameters include spray nozzle inner diameter , relative kerfs depth and V-shaped slot angle . The spray nozzle performance parameters include flux , spray angle and spray distribution uniformity .

以方形喷洒域变量喷头为例，推导了方形喷洒域变量喷头射程随转角变化的理论方程，然后应用变量喷头工作方程推导了方形喷洒域变量喷头理论流量和转速方程。

To illustrate the application of the ( operating ) equation , the theoretical models of spray range , discharge and rotating speed of the variable-rate square wetted area sprinkler were derived .