🔧 水利工程工具

💧 伯努利方程Bernoulli Velocity 輸入管道上游與下游的壓強、已知流速及高程，依據伯努利能量守恆方程求解下游流速 v₂，並給出兩點間總水頭差，適用於管路設計與流體力學教學中快速校核流速變化。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（水頭損失）埋深Daohongxi Shuitousunshi Maishen 倒虹吸（水頭損失）埋深計算器。輸入管徑、流量與地形，估算倒虹吸管的水頭損失與埋設深度，用於農田水利與給排水倒虹工程的設計參考。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... 💧 冷卻換熱功率計算Calc Power 2 輸入載冷劑流量與進、出口温差，按比熱容計算換熱功率（kW），並可反算維持該冷量所需冷卻水量，適用於中央空調與工業冷卻系統的負荷匹配與設備選型。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... 💧 土石壩填築密度控制Density 4 輸入填築料濕密度、含水率與最大幹密度，計算壓實幹密度與壓實度（相對密實度），對照規範判定壓實質量是否達標，用於土石壩、堤防填築現場的質量檢測。Density 4 - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Hydraulic Engineering tools. 🏛️ 大壩穩定性計算Dam Stability 輸入重力壩單位長度壩體尺寸、混凝土重度、上游水位與建基面參數，計算抗滑穩定與抗傾覆穩定安全係數，判斷壩體在靜水壓力下的穩定性，用於小型水利樞紐初步設計複核。Dam Stability - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Hydraulic Engineering tools. 🕳️ 孔口出流計算Orifice Flow Calculator 孔口出流在線計算器，輸入水頭、孔口面積與流量係數求得出流流量，用於給排水與液壓設計，純前端運行。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 由流量係數、孔徑與水頭，按 Q = Cd·A·√(2gh) 計算孔口出流流量。Orifice Discharge - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Hydraulic Engineering tools. 💧 局部損失 h_LMinor Head Loss 由局部阻力系數與流速，按 h_L = K·v²/(2g) 計算閥門、彎頭等局部水頭損失。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. 💧 庫容曲線擬合Area Capacity 輸入多組水位-面積數據，梯形法積分擬合水位-庫容曲線，查詢任意水位對應庫容Area Capacity - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Hydraulic Engineering tools. 💧 引水管道尺寸計算Flow Pipeline 輸入設計引水流量與經濟流速，計算推薦管徑，並按曼寧公式估算沿程水頭損失，用於灌溉、供水等引水工程中確定管道規格與泵站揚程，平衡投資與能耗。Flow Pipeline - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Hydraulic Engineering tools. 💧 明渠均勻流計算Open Channel Uniform Flow Calculator (Manning's) 梯形斷面渠道，基於曼寧公式計算均勻流流量與流速（邊坡係數 m=0 即為矩形斷面）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... 💧 曼寧公式Manning Flow 由糙率 n、過水斷面 A、水力半徑 R 與底坡 S，按 Q=(1/n)A·R^(2/3)·√S 計算明渠均勻流流量。Manning Flow - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Hydraulic Engineering tools. 📏 水位與水頭計算Water Level 輸入測壓管水頭、流速與高程，依據伯努利方程分解位置水頭、壓力水頭與流速水頭並求總水頭，用於管路測壓點分析、水泵吸程與能量損失教學演示。Water Level - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Hydraulic Engineering tools. 💧 水力發電功率計算Flow Power 輸入淨水頭、引水流量與水輪機效率，計算可發出的發電功率，並結合年利用小時估算年發電量，用於小水電或逕流式電站的產能評估與可行性初算。Flow Power - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Hydraulic Engineering tools. 🚰 水泵揚程計算Pump Head Calculator 輸入吸水管與壓水管路的幾何高差、沿程與局部水頭損失，計算水泵所需總揚程，用於清水或給排水系統中選泵時確定揚程參數，避免選型過小導致供水不足。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 ... 💧 水錘防護計算Calc Protection 根據管路關閥時間與水錘波傳播相長，判定直接水錘或間接水錘，計算關閥引起的升壓值並評估管段安全性，給出緩閉閥、調壓塔或空氣閥等防護建議，降低爆管風險。Calc Protection - calculate online, free and accurate. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Hydraulic ... 💧 水閘啓閉力計算Sluice Gate Open/Close Force Calculator 輸入平面閘門自重、上下游水位差、止水摩擦係數及水柱下壓力等參數，計算啓門力與閉門力，評估啓閉設備能力，用於水閘設計與運行維護中校核起吊安全。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、揚程與效率，按 P = ρgQH/η 計算水泵軸功率（輸入功率）。Pump Power - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Hydraulic Engineering tools. 💧 泵站效率計算Power 3 輸入流量、揚程、軸功率，計算水泵有效功率、運行效率與能耗（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 輸入體積流量 Q 與過流斷面面積 A，按 v = Q/A 計算平均流速，適用於管道、明渠中任意截面流體的流速反算，便於校核流速是否滿足規範限值。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... 💨 流速與雷諾數計算Flow Rate and Reynolds Number Calculate 輸入明渠斷面參數，用曼寧公式求平均流速，並依據雷諾數 Re 判定流態（層流/過渡流/湍流）、弗勞德數 Fr 判定緩流/急流，輔助水力學中流態識別與渠道設計。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... 🌊 流量計算Flow Calculate 支持管道流量（Q = A×v，輸入斷面面積與平均流速）與明渠流量（曼寧公式，輸入底坡、糙率與水力半徑）兩類計算，用於給排水、灌渠等場景中估算斷面過流能力。Flow Calculate - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Hydraulic Engineering tools. 💧 液壓伺服比例技術Ratio 24 輸入負載質量、行程、響應頻率與供油壓力，計算伺服缸面積、所需流量、液壓固有頻率與伺服閥流量增益，評估系統帶寬Ratio 24 - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Hydraulic Engineering tools. 💧 液壓回路設計Speed Pressure 輸入液壓缸尺寸、負載、速度要求，計算推/拉腔面積、所需壓力與流量，設計迴路壓力與流量參數Speed Pressure - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Hydraulic Engineering tools. 💧 液壓密封件選型Lifespan 輸入工作壓力、温度、介質與運動速度等工況，推薦密封材料（NBR/FKM/PU）與型式（O 圈/Yx 圈/格萊圈等），並綜合工況嚴苛度估算密封件使用壽命，輔助液壓系統維護選型。Lifespan - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Hydraulic Engineering tools. 💧 液壓故障診斷Pressure Diagnosis 輸入系統額定/實測壓力、泄漏量、振動頻率、油温，基於規則推理診斷液壓系統可能故障並給出維修建議Pressure Diagnosis - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Hydraulic Engineering tools. 🔧 液壓油清潔度等級判定Detector 22 輸入油液顆粒計數器檢測結果（每100mL油液中各粒徑範圍的顆粒數），自動判定 ISO 4406 與 NAS 1638 清潔度等級，並給出適用場景建議。Detector 22 - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Hydraulic Engineering tools. 💧 液壓油箱設計Hydraulic Tank Designer 輸入泵流量、工作壓力、系統效率與允許温升，按經驗法則與熱平衡計算油箱容積、散熱面積，判斷是否需要冷卻器Design hydraulic reservoirs by empirical and thermal-balance methods. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of... 💧 液壓泵選型Gear 1 輸入液壓系統所需流量、工作壓力與泵轉速，計算泵排量並推薦合適泵型（齒輪泵/葉片泵/柱塞泵），幫助設計人員在系統匹配時確定液壓泵規格。Gear 1 - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Hydraulic Engineering tools. 🔧 液壓系統能量效率評估Assessor 33 計算液壓泵容積效率、機械效率與總效率，評估勢能回收率與變頻節能效果，輸入參數自動計算並給出節能建議。Assessor 33 - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Hydraulic Engineering tools. 💧 液壓缸推力速度行程計算Calc Speed Itinerary 輸入雙作用單杆液壓缸的缸徑、杆徑、供油壓力與流量，計算伸長與回縮時的推力、拉力、活塞速度及完成設定行程所需時間，用於液壓機械設計與動作節拍校核。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... 💧 液壓閥功能選型Pressure Flow 1 輸入最大流量、工作壓力、控制方式與閥門功能，計算閥通徑並推薦合適的閥門類型與規格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. 💧 液壓馬達選型Power Torque 輸入所需扭矩、轉速、系統壓力，計算馬達排量、所需流量與功率，並推薦馬達類型Power Torque - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Hydraulic Engineering tools. 💧 淤積（泥沙）庫容損失Yuji Nisha Kurongsunshi 淤積（泥沙）庫容損失估算器。輸入入庫沙量、庫容與排沙蔘數，估算泥沙淤積造成的庫容損失，用於水庫調度與壽命評估參考。Yuji Nisha Kurongsunshi - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Hydraulic Engineering... 💧 混凝土温度裂縫預防Temp 7 輸入澆築温度、環境温度、水化熱温升、結構厚度，計算內表温差、基礎温差與抗裂安全係數，評估温度裂縫風險Temp 7 - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Hydraulic Engineering tools. 💧 滲流（浸潤線）位置Shenliu Jinrunxian Weizhi 滲流（浸潤線）位置計算器。輸入土壩參數與滲透係數，估算浸潤線位置與滲流出逸點，用於土石壩穩定與防滲設計參考。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（不衝/不淤）流速Qudao Buchong Buyu Liusu 渠道（不衝/不淤）流速計算器。輸入渠道斷面與糙率，估算不衝不淤的合理流速區間，用於明渠設計與防沖刷/防淤積校核參考。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... 🏗️ 溢洪道泄流能力計算Spillway Calc 輸入溢洪道堰型、堰頂水頭、堰寬與綜合流量係數，按堰流公式計算泄流量 Q（m³/s），用於水庫或渠道泄洪能力快速估算與汛期安全校核。Estimate spillway discharge with broad- or sharp-crested weir formula and flow, contraction and submergence coefficients. For hydraulic study—free, client-side. 💧 溢洪道泄流量計算Flow 輸入堰型（實用堰/寬頂堰）、堰頂水頭、堰寬與流量係數，按堰流公式 Q = m·b·√(2g)·H^(3/2) 計算溢洪道泄流能力，用於水庫調洪演算與泄洪建築物校核。Flow - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Hydraulic Engineering tools. 💧 生態最小下泄流量Flow 1 基於多年平均流量與生態基流係數計算最小下泄流量，結合 Tennant 法評價生態狀況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 由流量係數、堰寬與堰上水頭，按 Q=(2/3)Cd·b·√(2g)·H^1.5 計算堰流量。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/壓降）設計Pressure Drop 管路（壁厚/流速/壓降）設計工具。輸入管徑、流速與長度，估算管路沿程壓降並校核壁厚，用於工業管道與水力系統的設計與選型參考。Pressure Drop - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Hydraulic Engineering tools. 💧 管道水力計算（流速/壓降）Pipe Hydraulics Calculator (Velocity / Pressure Drop) 根據達西-魏斯巴赫公式計算圓管流速、雷諾數、沿程阻力及壓降，適用於常温清水。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... 💧 管道沿程水頭損失Pipe Friction Head Loss Calculator 採用 Hazen-Williams 公式計算圓管沿程水頭損失、壓降與管內流速。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... 💧 蓄能器容量計算Calc Pressure Capacity 輸入工作壓力範圍、氣體預充壓力與油液體積變化，按等温或絕熱過程分別計算皮囊式蓄能器所需容積，用於液壓系統中吸收衝擊、補償泄漏或作輔助動力源時的容量選型。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... 🌊 虹吸高度計算Siphon Height Calculator 輸入當地大氣壓、水温與管路損失，估算泵入口不發生汽化的最大允許虹吸高度，適用於引水與排水設計。Compute maximum siphon height. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Hydraulic Engineering tools. 💧 質量/體積連續性Continuity Pipe 由入口斷面、流速與出口斷面，按 A₁v₁ = A₂v₂ 求變徑後流速。Continuity Pipe - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Hydraulic Engineering tools. 💧 達西-魏斯巴赫公式Darcy Head Loss 由摩擦係數、管長、管徑、密度與流速，按 ΔP = f(L/D)(ρv²/2) 計算管道沿程壓降。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. 💧 運動黏度 νKinematic Viscosity Calculator 輸入液體動力黏度 μ 與密度 ρ，按 ν = μ/ρ 計算運動黏度（mm²/s），用於潤滑油、液壓油選型與流體力學計算中表徵流體黏滯特性。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（設計洪水）頻率分析Analysis Frequency 防洪（設計洪水）頻率分析工具。輸入洪水系列與頻率參數，按工程水文方法估算設計洪水與重現期，用於水利防洪設計參考（結果僅供參考）。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 輸入流體密度、重力加速度與排開體積，按 F=ρgV 計算物體所受浮力，適用於船舶與沉浮問題分析。Buoyancy Force - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Hydraulic Engineering tools. 💧 雷諾數 ReReynolds Number Calculator 由密度、流速、特徵管徑與動力黏度，按 Re = ρvD/μ 計算流動雷諾數並判定流態。Reynolds Number Calculator - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Hydraulic Engineer... 💧 靜水壓強Hydrostatic Pressure 由液體密度、重力加速度與深度，按 P = ρgh 計算靜水壓強（相對壓強）。Hydrostatic Pressure - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Hydraulic Engineering to... 💧 面板堆石壩沉降預測CFRD Settlement Predictor 輸入壩高、壓縮模量、填築容重、沉降係數與預測時間，按分層總和法與指數固結模型預測施工期沉降、竣工後沉降、總沉降及沉降穩定時間Predict concrete-face rockfill dam settlement from height and compression modulus. Free online tool on ToolBox — 100% client-side, no data uploaded, no ins...