🔧 水利工程工具

💧 伯努利方程Bernoulli Velocity 输入管道上游与下游的压强、已知流速及高程，依据伯努利能量守恒方程求解下游流速 v₂，并给出两点间总水头差，适用于管路设计与流体力学教学中快速校核流速变化。Bernoulli Velocity - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Hydraulic Engineering tools. 💧 倒虹吸（水头损失）埋深Daohongxi Shuitousunshi Maishen 倒虹吸（水头损失）埋深计算器。输入管径、流量与地形，估算倒虹吸管的水头损失与埋设深度，用于农田水利与给排水倒虹工程的设计参考。Daohongxi Shuitousunshi Maishen - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Hydraulic Eng... 💧 公式Hazen Williams Headloss Hazen-Williams 公式Hazen Williams Headloss - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Hydraulic Engineering... 💧 冷却换热功率计算Calc Power 2 输入载冷剂流量与进、出口温差，按比热容计算换热功率（kW），并可反算维持该冷量所需冷却水量，适用于中央空调与工业冷却系统的负荷匹配与设备选型。Calc Power 2 - calculate online, free and accurate. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Hydraulic Eng... 💧 土石坝填筑密度控制Density 4 输入填筑料湿密度、含水率与最大干密度，计算压实干密度与压实度（相对密实度），对照规范判定压实质量是否达标，用于土石坝、堤防填筑现场的质量检测。Density 4 - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Hydraulic Engineering tools. 🏛️ 大坝稳定性计算Dam Stability 输入重力坝单位长度坝体尺寸、混凝土重度、上游水位与建基面参数，计算抗滑稳定与抗倾覆稳定安全系数，判断坝体在静水压力下的稳定性，用于小型水利枢纽初步设计复核。Dam Stability - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Hydraulic Engineering tools. 🕳️ 孔口出流计算Orifice Flow Calculator 孔口出流在线计算器，输入水头、孔口面积与流量系数求得出流流量，用于给排水与液压设计，纯前端运行。Compute discharge through an orifice. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Hydraulic Engineering tools. 💧 孔口自由出流Orifice Discharge 由流量系数、孔径与水头，按 Q = Cd·A·√(2gh) 计算孔口出流流量。Orifice Discharge - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Hydraulic Engineering tools. 💧 局部损失 h_LMinor Head Loss 由局部阻力系数与流速，按 h_L = K·v²/(2g) 计算阀门、弯头等局部水头损失。Minor Head Loss - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Hydraulic Engineering tools. 💧 库容曲线拟合Area Capacity 输入多组水位-面积数据，梯形法积分拟合水位-库容曲线，查询任意水位对应库容Area Capacity - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Hydraulic Engineering tools. 💧 引水管道尺寸计算Flow Pipeline 输入设计引水流量与经济流速，计算推荐管径，并按曼宁公式估算沿程水头损失，用于灌溉、供水等引水工程中确定管道规格与泵站扬程，平衡投资与能耗。Flow Pipeline - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Hydraulic Engineering tools. 💧 明渠均匀流计算Open Channel Uniform Flow Calculator (Manning's) 梯形断面渠道，基于曼宁公式计算均匀流流量与流速（边坡系数 m=0 即为矩形断面）Compute uniform flow in open channels (Manning's formula). Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Hydrau... 💧 曼宁公式Manning Flow 由糙率 n、过水断面 A、水力半径 R 与底坡 S，按 Q=(1/n)A·R^(2/3)·√S 计算明渠均匀流流量。Manning Flow - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Hydraulic Engineering tools. 📏 水位与水头计算Water Level 输入测压管水头、流速与高程，依据伯努利方程分解位置水头、压力水头与流速水头并求总水头，用于管路测压点分析、水泵吸程与能量损失教学演示。Water Level - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Hydraulic Engineering tools. 💧 水力发电功率计算Flow Power 输入净水头、引水流量与水轮机效率，计算可发出的发电功率，并结合年利用小时估算年发电量，用于小水电或径流式电站的产能评估与可行性初算。Flow Power - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Hydraulic Engineering tools. 🚰 水泵扬程计算Pump Head Calculator 输入吸水管与压水管路的几何高差、沿程与局部水头损失，计算水泵所需总扬程，用于清水或给排水系统中选泵时确定扬程参数，避免选型过小导致供水不足。Compute pump head from suction and discharge geometry. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Hydraulic ... 💧 水锤防护计算Calc Protection 根据管路关阀时间与水锤波传播相长，判定直接水锤或间接水锤，计算关阀引起的升压值并评估管段安全性，给出缓闭阀、调压塔或空气阀等防护建议，降低爆管风险。Calc Protection - calculate online, free and accurate. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Hydraulic ... 💧 水闸启闭力计算Sluice Gate Open/Close Force Calculator 输入平面闸门自重、上下游水位差、止水摩擦系数及水柱下压力等参数，计算启门力与闭门力，评估启闭设备能力，用于水闸设计与运行维护中校核起吊安全。Estimate opening/closing forces for sluice gate hoists. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Hydraulic... 💧 泵功率Pump Power 由流量、扬程与效率，按 P = ρgQH/η 计算水泵轴功率（输入功率）。Pump Power - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Hydraulic Engineering tools. 💧 泵站效率计算Power 3 输入流量、扬程、轴功率，计算水泵有效功率、运行效率与能耗（水的密度 ρ=1000kg/m³，g=9.81m/s²）Power 3 - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Hydraulic Engineering tools. 💧 流速 v = Q/AFlow Convert Flow Rate Calculator 输入体积流量 Q 与过流断面面积 A，按 v = Q/A 计算平均流速，适用于管道、明渠中任意截面流体的流速反算，便于校核流速是否满足规范限值。Flow Convert Flow Rate Calculator - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Hydraulic E... 💨 流速与雷诺数计算Flow Rate and Reynolds Number Calculate 输入明渠断面参数，用曼宁公式求平均流速，并依据雷诺数 Re 判定流态（层流/过渡流/湍流）、弗劳德数 Fr 判定缓流/急流，辅助水力学中流态识别与渠道设计。Flow Rate and Reynolds Number Calculate - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Hydra... 🌊 流量计算Flow Calculate 支持管道流量（Q = A×v，输入断面面积与平均流速）与明渠流量（曼宁公式，输入底坡、糙率与水力半径）两类计算，用于给排水、灌渠等场景中估算断面过流能力。Flow Calculate - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Hydraulic Engineering tools. 💧 液压伺服比例技术Ratio 24 输入负载质量、行程、响应频率与供油压力，计算伺服缸面积、所需流量、液压固有频率与伺服阀流量增益，评估系统带宽Ratio 24 - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Hydraulic Engineering tools. 💧 液压回路设计Speed Pressure 输入液压缸尺寸、负载、速度要求，计算推/拉腔面积、所需压力与流量，设计回路压力与流量参数Speed Pressure - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Hydraulic Engineering tools. 💧 液压密封件选型Lifespan 输入工作压力、温度、介质与运动速度等工况，推荐密封材料（NBR/FKM/PU）与型式（O 圈/Yx 圈/格莱圈等），并综合工况严苛度估算密封件使用寿命，辅助液压系统维护选型。Lifespan - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Hydraulic Engineering tools. 💧 液压故障诊断Pressure Diagnosis 输入系统额定/实测压力、泄漏量、振动频率、油温，基于规则推理诊断液压系统可能故障并给出维修建议Pressure Diagnosis - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Hydraulic Engineering tools. 🔧 液压油清洁度等级判定Detector 22 输入油液颗粒计数器检测结果（每100mL油液中各粒径范围的颗粒数），自动判定 ISO 4406 与 NAS 1638 清洁度等级，并给出适用场景建议。Detector 22 - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Hydraulic Engineering tools. 💧 液压油箱设计Hydraulic Tank Designer 输入泵流量、工作压力、系统效率与允许温升，按经验法则与热平衡计算油箱容积、散热面积，判断是否需要冷却器Design hydraulic reservoirs by empirical and thermal-balance methods. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of... 💧 液压泵选型Gear 1 输入液压系统所需流量、工作压力与泵转速，计算泵排量并推荐合适泵型（齿轮泵/叶片泵/柱塞泵），帮助设计人员在系统匹配时确定液压泵规格。Gear 1 - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Hydraulic Engineering tools. 🔧 液压系统能量效率评估Assessor 33 计算液压泵容积效率、机械效率与总效率，评估势能回收率与变频节能效果，输入参数自动计算并给出节能建议。Assessor 33 - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Hydraulic Engineering tools. 💧 液压缸推力速度行程计算Calc Speed Itinerary 输入双作用单杆液压缸的缸径、杆径、供油压力与流量，计算伸长与回缩时的推力、拉力、活塞速度及完成设定行程所需时间，用于液压机械设计与动作节拍校核。Calc Speed Itinerary - calculate online, free and accurate. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Hydra... 💧 液压阀功能选型Pressure Flow 1 输入最大流量、工作压力、控制方式与阀门功能，计算阀通径并推荐合适的阀门类型与规格Pressure Flow 1 - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Hydraulic Engineering tools. 💧 液压马达选型Power Torque 输入所需扭矩、转速、系统压力，计算马达排量、所需流量与功率，并推荐马达类型Power Torque - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Hydraulic Engineering tools. 💧 淤积（泥沙）库容损失Yuji Nisha Kurongsunshi 淤积（泥沙）库容损失估算器。输入入库沙量、库容与排沙参数，估算泥沙淤积造成的库容损失，用于水库调度与寿命评估参考。Yuji Nisha Kurongsunshi - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Hydraulic Engineering... 💧 混凝土温度裂缝预防Temp 7 输入浇筑温度、环境温度、水化热温升、结构厚度，计算内表温差、基础温差与抗裂安全系数，评估温度裂缝风险Temp 7 - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Hydraulic Engineering tools. 💧 渗流（浸润线）位置Shenliu Jinrunxian Weizhi 渗流（浸润线）位置计算器。输入土坝参数与渗透系数，估算浸润线位置与渗流出逸点，用于土石坝稳定与防渗设计参考。Shenliu Jinrunxian Weizhi - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Hydraulic Engineeri... 💧 渠道（不冲/不淤）流速Qudao Buchong Buyu Liusu 渠道（不冲/不淤）流速计算器。输入渠道断面与糙率，估算不冲不淤的合理流速区间，用于明渠设计与防冲刷/防淤积校核参考。Qudao Buchong Buyu Liusu - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Hydraulic Engineerin... 🏗️ 溢洪道泄流能力计算Spillway Calc 输入溢洪道堰型、堰顶水头、堰宽与综合流量系数，按堰流公式计算泄流量 Q（m³/s），用于水库或渠道泄洪能力快速估算与汛期安全校核。Estimate spillway discharge with broad- or sharp-crested weir formula and flow, contraction and submergence coefficients. For hydraulic study—free, client-side. 💧 溢洪道泄流量计算Flow 输入堰型（实用堰/宽顶堰）、堰顶水头、堰宽与流量系数，按堰流公式 Q = m·b·√(2g)·H^(3/2) 计算溢洪道泄流能力，用于水库调洪演算与泄洪建筑物校核。Flow - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Hydraulic Engineering tools. 💧 生态最小下泄流量Flow 1 基于多年平均流量与生态基流系数计算最小下泄流量，结合 Tennant 法评价生态状况Flow 1 - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Hydraulic Engineering tools. 💧 矩形薄壁堰Rectangular Weir 由流量系数、堰宽与堰上水头，按 Q=(2/3)Cd·b·√(2g)·H^1.5 计算堰流量。Rectangular Weir - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Hydraulic Engineering tools. 🔧 管路（壁厚/流速/压降）设计Pressure Drop 管路（壁厚/流速/压降）设计工具。输入管径、流速与长度，估算管路沿程压降并校核壁厚，用于工业管道与水力系统的设计与选型参考。Pressure Drop - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Hydraulic Engineering tools. 💧 管道水力计算（流速/压降）Pipe Hydraulics Calculator (Velocity / Pressure Drop) 根据达西-魏斯巴赫公式计算圆管流速、雷诺数、沿程阻力及压降，适用于常温清水。Compute pipe flow velocity and pressure drop (Darcy-Weisbach). Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Hy... 💧 管道沿程水头损失Pipe Friction Head Loss Calculator 采用 Hazen-Williams 公式计算圆管沿程水头损失、压降与管内流速。Compute friction head loss along a pipe. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Hydraulic Engineering to... 💧 蓄能器容量计算Calc Pressure Capacity 输入工作压力范围、气体预充压力与油液体积变化，按等温或绝热过程分别计算皮囊式蓄能器所需容积，用于液压系统中吸收冲击、补偿泄漏或作辅助动力源时的容量选型。Calc Pressure Capacity - calculate online, free and accurate. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Hyd... 🌊 虹吸高度计算Siphon Height Calculator 输入当地大气压、水温与管路损失，估算泵入口不发生汽化的最大允许虹吸高度，适用于引水与排水设计。Compute maximum siphon height. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Hydraulic Engineering tools. 💧 质量/体积连续性Continuity Pipe 由入口断面、流速与出口断面，按 A₁v₁ = A₂v₂ 求变径后流速。Continuity Pipe - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Hydraulic Engineering tools. 💧 达西-魏斯巴赫公式Darcy Head Loss 由摩擦系数、管长、管径、密度与流速，按 ΔP = f(L/D)(ρv²/2) 计算管道沿程压降。Darcy Head Loss - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Hydraulic Engineering tools. 💧 运动黏度 νKinematic Viscosity Calculator 输入液体动力黏度 μ 与密度 ρ，按 ν = μ/ρ 计算运动黏度（mm²/s），用于润滑油、液压油选型与流体力学计算中表征流体黏滞特性。Kinematic Viscosity Calculator - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Hydraulic Engi... 💧 防洪（设计洪水）频率分析Analysis Frequency 防洪（设计洪水）频率分析工具。输入洪水系列与频率参数，按工程水文方法估算设计洪水与重现期，用于水利防洪设计参考（结果仅供参考）。Analysis Frequency - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Hydraulic Engineering tools. 💧 阿基米德原理Buoyancy Force 输入流体密度、重力加速度与排开体积，按 F=ρgV 计算物体所受浮力，适用于船舶与沉浮问题分析。Buoyancy Force - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Hydraulic Engineering tools. 💧 雷诺数 ReReynolds Number Calculator 由密度、流速、特征管径与动力黏度，按 Re = ρvD/μ 计算流动雷诺数并判定流态。Reynolds Number Calculator - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Hydraulic Engineer... 💧 静水压强Hydrostatic Pressure 由液体密度、重力加速度与深度，按 P = ρgh 计算静水压强（相对压强）。Hydrostatic Pressure - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Hydraulic Engineering to... 💧 面板堆石坝沉降预测CFRD Settlement Predictor 输入坝高、压缩模量、填筑容重、沉降系数与预测时间，按分层总和法与指数固结模型预测施工期沉降、竣工后沉降、总沉降及沉降稳定时间Predict concrete-face rockfill dam settlement from height and compression modulus. Free online tool on ToolBox — 100% client-side, no data uploaded, no ins...