【正文】 遼寧工程技術大學應用技術學院畢業(yè)設計（論文）用紙 I 通風選型設計 礦山機電畢業(yè)設計 摘要 隨著煤礦工業(yè)的發(fā)展，安全生產已經成為其中重要的部分。為確保煤礦的安全生產，對煤礦的安全設計十分重要，礦井通風就是其中的一個重要組成部分。礦井通風的作用就是不斷地向井下各個作業(yè)地點供給足夠數量的新鮮空氣，稀釋并排出各種有害、有毒及放射性氣體和粉塵。調節(jié)井下空氣的溫度和濕度，使之保持在合適的狀態(tài)，給井下工作人員創(chuàng)造一個良好的工作環(huán)境，以便勞動生產率的不斷提高。 本次論文設計是基于 阜礦五龍 煤礦流體機械選型設計，完成煤礦主 通風 設備離心式風機 的型及設計，通風機選型與設計和 472 和 G473 型 離心 式 風機房的布置、 降噪 設計三大任務旨在提高設備利用效率，降低風機房的噪聲，實現最大經濟效益。 此況井年產量 85 萬噸，礦井通風方式為抽出式，風量為 2362 m3/min ，瓦斯?jié)舛鹊?，初期負?1025Pa，末期負壓 1654Pa。經過對風量、負壓的計算，繪制曲線圖，選擇風機，確定風機工況，用經濟計算比對不同方案，并確定其中一組最適合的方案，進行核查計算。 根據《 煤礦 安全規(guī)程》 和《煤炭 工業(yè)設計規(guī)范》所規(guī)定的有關條款，本次設計以安全為主，經濟為輔。在安全生產的大環(huán)境下，如何做到經濟損失最小化，能源利用的最大化，也是本次設計的研究 方向。 關鍵詞：安全生產；通風機；選型； 工況點 遼寧工程技術大學應用技術學院畢業(yè)設計（論文）用紙 II Abstract With the development of coal industry safety has bee an important part of them. To ensure the safety of coal mine production mine safety design is very important mine ventilation is one important ponent. The role of ventilation is to keep the various operating locations to the underground supply sufficient quantities of fresh air dilution and discharge of harmful toxic and radioactive gases and dust. Regulate air temperature and humidity underground so that it remains in the right state to the underground staff to create a good working environment for the continuous improvement of labor productivity. This design is base on the coal mine fluid machinery chooses type and design ,to plet three main task :coalmaster catchment equipment chosen design, ventilator bloser chosen design and 472 and G473 centrifugal fan vibration rdduction design. The last purpose is to improve the facility efficiency , reduce centrifugal fan vibration ,so we can carry out the biggest economic benefit. Annual production of 85 million tons this well borehole diameter of 4 meters air flow is 2362 m3/min gas concentration is low the initial negative pressure 1025Pa the late negative 1654Pa. After the air volume, the calculation of negative pressure drawing graphs select the fan to determine the fan operating conditions with different options than economic calculations and to determine the most suitable one of a group of programs verification of calculations. According to “Mine Safety Regulations ”and “Coal Industry Design Specification” under the relevant provisions of this design to safety economic supplement. Production in a safe environment how to do to minimize economic losses maximize energy use but also the design of this research. Key words: safety fan selection save energy 遼寧工程技術大學應用技術學院畢業(yè)設計（論文）用紙 III 目錄 0前言 ................................................................................................. 1 1 離心式通風機 ................................................................................. 2 離心式通風機的構造和工作原理 ................................................. 2 離心式通風機的性能參數及性能曲線 .......................................... 4 風量 ........................................................................................... 4 風壓 ........................................................................................... 5 功率 ........................................................................................... 6 效率 ........................................................................................... 6 轉速 ........................................................................................... 7 通風機的性能曲線 ........................................................................ 9 離心風機行業(yè)未來發(fā)展趨勢 ......................................................... 9 本課題的研究目的和意義 ...........................................................10 2 礦山風機設備的選型要求與原則 ...................................................12 礦山風機設備的選型要求 ...........................................................12 礦山風機設備的選型原則 ...........................................................12 選擇設計的任務 ..........................................................................13 3 離心式通風機的初步預算 ..............................................................15 設計參數 ......................................................................................15 選擇風機類型和型號 ...................................................................15 估算通風機必需產生的風量 ....................................................15 估算通風機的風壓 ...................................................................15 對離心式通風機類型的選擇 ....................................................16 4 472 型離心式 通風機的選型計算 ...................................................17 離心式通風機臺數的計算 ...........................................................17 確定通風機工況點 .......................................................................18 電動機的選擇 ..............................................................................21 計算年電耗量 ..............................