primary air 中文意思是什麼
primary air
解釋
初級線圈-
When the primary air blast wave from the explosion strikes the ground, another blast wave is produced by reflection.
當爆炸引起的入射沖擊波觸及地面時，由於波的反射便產生另一沖擊波。 -
Moreover, the system of powdered coal conveying with primary air is the most important tache, whether the distribution of primary air is even or not directly relates to whether the distribution of powdered coal is even or not in all firing implement and nozzles, sequentially directly relates to whether it is hard to take fire, whether the fire is stable, whether there is coking and how about the heat efficiency of the boiler, hi addition, if there is jamming and deflagrate in the system of powdered coal conveying with primary air, severe safety accident can be resulted
良好的煤粉配風是建立合理的爐內空氣動力工況和穩定燃燒的必要條件。而其中一次熱風送粉系統又是最重要的一個環節，一次風配風是否均勻直接關繫到煤粉在各燃燒器和各噴嘴中的分佈是否均勻，從而直接關繫到著火是否困難、火焰是否穩定、局部是否結焦以及鍋爐的熱效率高低。若一次風送粉系統發生堵塞和煤粉爆燃則可能引發嚴重的安全事故。 -
Specification for manufactured solid smokeless fuels for household use - cokes for domestic openable and closed appliances and open fires with fan - assisted primary air
家用經加工的固體無煙燃料規范.第2部分:家用啟閉爐和敞爐用焦炭 -
This article aims at the boiler ' s problems in operation : 1 ) under nominal load, the smoke temperature at the outlet of hearth reaches 1200, far more exceeds 1050 the original designed temperature. this will always result in slag inside boiler and the temperature of overheater ' s pipe superheat, so that boiler cannot take nominal load and all these influence boiler ' s nomal operation heavily, 2 ) this article also studied the reason why the assistant oil becoming necessary when coal changes. during the nomal operation, many factors ( makeup of combustor and its disposal, smirch and encrust of water wall, excessive air coefficient, temperature of primary air, coal type and density of coal dust ) can deviate the designed working conditions, then affect the boiler ' s nomal operation
本文針對該鍋爐在實際運行中存在的問題：在額定負荷下，爐膛出口超溫、低溫段過熱器前煙溫高達936 ，遠遠超過815的設計值；噴燃器四周水冷壁結焦嚴重，過熱器管壁溫度超標，無法帶上額定負荷；甚至有時因燃煤質量的變化，必須投油助燃的嚴重情況進行了分析研究。在實際生產過程中，燃燒器的結構、布置，水冷壁的粘污、結垢，過剩空氣系數、一次風溫、煤種及其濃度變化等許多因素都會偏離鍋爐的設計工況，從而影響爐內的傳熱和燃燒，造成爐膛出口超溫、水冷壁結渣等問題。 -
On - the - spot test of vibration damping and noise decreasing for the cool primary air fan of 2023t h boiler
鍋爐冷一次風機減振降噪的現場試驗研究 -
Combined with debugging expirence in the field, the control system of incinerator, including the stocker control system, primary air control system, secondary air control system etc., used in nanshan municipal solid waste ( msw ) incineration power plant has been presented
摘要結合現場調試經驗，介紹了深圳市南山垃圾焚燒發電廠焚燒爐控制系統，包括爐排控制系統、一次風控制系統、二次風控制系統等。 -
The burners of 220 t / h boiler in henan shenhuolv power plant were retrofitted by using the pulverized coal burners with stabilized - firing cavity and cutting down the distance between up - primary air and down - primary air etc. technologies, thus the boiler was successfully converted from originally designed burning high calorific value coal to low calorific value coal, the boiler could operate stably at 50 % load without oil - firing aid and the thermal efficiency of boiler reached 89 %
摘要採用穩燃腔煤粉燃燒器並集中布置上、下一次風等技術對河南神火鋁電廠220t / h鍋爐燃燒器進行改造，成功地將該爐原設計燃用優質煤改燃為普通煤，並取得了改造后50 %負荷可無油穩定運行，鍋爐熱效率達到89 %的良好效果。 -
Via the analysis of heat balance computation model and the computation of online heat balance for industrial coal boiler, this dissertation researched overall input heat, efficient utilized quantity of heat, heat losing of discharge flue gas, heat losing of chemistry and mechanism incomplete combustion, heat losing of dispelling heat of boiler, heat efficiency, air superfluous coefficient, wind speed, wind quantity, computation of primary air circle cutting and whose influence on boiler combustion efficiency
本文通過對工業煤粉鍋爐熱平衡計算模型的分析，利用在線熱平衡計算，研究了總輸入熱、有效利用熱量、排煙熱損失、化學不完全燃燒熱損失、機械不完全燃燒熱損失、鍋爐散熱熱損失、熱效率、空氣過剩系數、風速、風量及一次風切圓計算以及這些因素對鍋爐燃燒效率的影響。 -
There are four primary return air all - air systems in the building ; others are primary air fan coil systems
全樓共設一次回風式全空氣系統4個，其餘均為風機盤管加新風系統。 -
A coke oven represents a kind of controlled object with a full spectrum of closely coupled factors, such as distributed parameters, no - linearity, time - dependent change and multi - variable features. among them, the discharge header pressure and fan suction are key parameters, and also constitute strongly coupled variables with very close inter - relation, which are fulfilled by the way of regulating coal - feeding and the rate of primary air supply in practice
焦爐是一個分佈參數，非線性、時變、多變量緊密耦合的被控對象，其中集氣管壓力和鼓風機吸力既是關鍵參數，又是具有緊密關系的強耦合變量，它們均是通過調節給煤量和一次送風量來實現控制的。 -
Numerical simulation of a boiler primary - air flow through a throttle orifice - plate
鍋爐一次風通過節流孔板時的數值模擬 -
Few studies have been made in the gas - solid interfacial heat transfer. in this thesis, the influence of primary air, particle size, and particle circulation rate on gas - solid interfacial heat transfer in cfb were investigated, and the influence of secondary air and particle distribution were investigated for the first time by using the naphthalene sublimation technique
本文在自建的循環流化床實驗臺上，運用萘升華熱、質類比技術考察了一次風、顆粒循環量、顆粒粒徑，顆粒平均空隙率等因素對床內氣粒兩相間傳熱、傳質特性的影響情況，並首次考察了二次風的作用和粒徑分佈的影響。 -
Combustion system of power plant boiler is taken as the research object of this thesis. the research mainly focuses on the faults of boiler combustion system, such as flame center deflection, powder feed inequality or break, primary air pipe jammed, spontaneous combustion, and backfire or kill in burner spout
本文以電站鍋爐燃燒系統為研究對象，主要圍繞鍋爐燃燒系統運行中可能出現的爐膛火焰中心偏斜、給粉機下粉脈動、一次風管道內堵粉、自燃、燃燒器噴口回火、滅火等故障展開研究。 -
No. 4 boiler in niangziguan plant is main research object, in view of slagging and high - temperature corrosion of boiler, after this problem is analyzed and studied, we put forward the horizontal concweak ellipse cone combustion technology with primary air and secondary air added side secondary air
本文以娘子關電廠4 ~ #爐為研究對象，針對鍋爐結渣和高溫腐蝕問題，通過分析研究，提出一、二次風同心反切加側二次風水平濃淡煤粉橢圓錐燃燒技術。 -
At the same time, the primary air system was monitored on - line
與此同時對鍋爐一次風系統進行了在線監測。 -
For the existing situation of primary air speed monitoring condition on boiler, a new instrument structure mode whose data acquisition board and display board are separated, and connected by communication to improve the reliability, reduce the cost and easy installation and maintain
摘要針對鍋爐一次風速監測儀表的現狀，提出一種新型儀表構成方式，將測量儀表的現場數據採集和顯示功能分離，之間採用通信方式連接，以提高儀表的可靠性，降低成本，方便安裝和維護。 -
Presents the air conditioning system and smoke exhaust system design of this project, applies the primary air fan coil system and secondary pump water system in the top electronics city
摘要簡要介紹了鼎好電子商城空調系統和防排煙系統的設計，商城採用了風機盤管加新風空調系統和二次泵空調水系統。 -
This article introduces the principle of deb and features of its function blocks. the article studies the difference, advantages and disadvantages of co - ordination control strategy under the direct energy balance and indirect energy balance. it introduces the configuration and way of max1000 + plus distributed control system, studies the characteristics and its influence to the operation of coordination control of the subsystems of mill, primary air fan etc. deeply and systematically
本文介紹了直接能量平衡控制（ deb ）的原理及其功能塊的特點，研究了直接能量平衡和間接能量平衡兩種方式下協調控制策略的差異和優劣，介紹了max1000 + plus分散控制系統的組態及方法，深入而系統的研究了磨煤機，一次風機等子系統的特性及對協調控制系統投入的影響。 -
For the problem that on - line monitoring of primary air of direct firing pulverizing system ca n ' t be complete achieved, the chaotic properties of parameter change of two - phase flow in pipe is analyzed in the paper, according to the pressure difference signal of two - phase flow system
目前電站鍋爐直吹式制粉系統的一次風氣固兩相流流動狀態在線監測仍未得以實現，針對這一難題，本文首次基於管道內氣固兩相流差壓信號對其流動狀態變化的混沌特性進行理論研究。 -
By heat - trial n cold - trial and operating experience in half a year, the practice prove that : the horizontal concweak ellipse cone combustion technology with primary air and secondary air added side secondary air, have the ability of preventing slagging ^ high - temperature corrosion and stable combustion onlow - load condition. shigeng - ling ( power engineering ) direected by prof
經冷態和熱態試驗及半年來的運行考驗，實踐證明：一、二次風同心反切加側二次風水平濃淡煤粉橢圓錐燃燒技術，具有防止結渣、高溫腐蝕和低負荷穩燃的能力。
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