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压缩机的进口节流调节Compressor inlet throttling regulation特点characteristic：改变进口状态

气体参数，改变了压缩机特性曲线。耗能，但经济性尚可，是常用的方法之一The characteristic curve of compressor was changed by changing the gas parameter of inlet state. Energy consumption, but the economy is acceptable, is one of the commonly used methods；操作方便easy operation.

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更多“压缩机的进口节流调节Compressor inlet thr…”相关的问题

第1题

压缩机的进口节流调节Compressor inlet throttling regulation原理principle：由性能换算可知，当转速不变时，进口节流后压力p1降低，压缩机在进口状态下体积流量与压比不变，因此质量流量M与排出压力p2减小，从而实现调节。According to performance conversion, when the rotation speed remains

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第2题

离心压缩机可采用的调节方法The adjustment method that centrifugal compressor can adopt：（）

A、改变压缩机的转速Change the speed of the compressor

B、压缩机出口的节流调节Throttle control of compressor outlet

C、压缩机进口的节流调节Compressor inlet throttling regulation

D、进口气流旋绕调节Air inlet winding regulation

E、旁路回流调节Bypass reflux control

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第3题

压缩机出口的节流调节Throttle control of compressor outlet特点characteristic：阀门节流耗能，经济性差Valve throttling energy consumption, poor economy；操作方便，适用于功率较小的压缩机Easy to operate, suitable for small power compressor.

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第4题

离心压缩机的进口节流调节和出口节流调节相比：

A、进口节流调节更经济

B、出口节流调节更经济

C、两者经济性一致

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第5题

压缩机出口的节流调节Throttle control of compressor outlet原理principle：（）

A、通过改变压缩机出口调节阀的开度来改变工作点The working point is changed by changing the opening degree of compressor outlet regulating valve

B、改变管道系统的特性曲线Change the characteristics of the piping system

C、不改变压缩机的特性曲线The characteristic curve of compressor is not changed

D、以上都不对

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第6题

离心压缩机的进口节流调节是调节压缩机特性还是调节管路特性，这种调节方法有何利弊？

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第7题

进口气流旋绕调节Air inlet winding regulation原理principle：（）

A、在离心压缩机叶轮进口前装有可绕叶片本身轴线转动的导向叶片，当导向叶片沿不同方向转动某一角度时，进入叶轮的气流将产生旋绕后进入叶轮，有两个方向Before the inlet of the impeller of the centrifugal compressor, there is a guide blade that can rotate around the axis of the blade itself. When the guide blade rotates at a certain Angle in different directions, the airflow into the impeller will be rotated and then enter the impeller in two directions

B、正旋绕：压比与流量减小Forward winding: pressure ratio and flow rate decrease

C、负旋绕：压比、流量增大Negative winding: pressure ratio, flow rate increase

D、以上都不对

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第8题

往复式压缩机reciprocating compressor：（）

A、优点merit: 排出压力稳定，能够适应广泛的压力变化范围和较宽的流量调节范围，一般效率较高，对制造压缩机的金属材料要求不苛刻。Stable discharge pressure, can adapt to a wide range of pressure changes and a wide range of flow regulation, generally higher efficiency, the manufacture of compressor metal material requirements are not harsh.

B、缺点disadvantage：结构复杂，易损件多，安装及基础工作量也较大，运转中的振动和噪音也大。The structure is complex, the wearing parts are many, the installation and the foundation work load is also big, the vibration and the noise in the operation is also big.

C、往复式活塞压缩机一般适用于要求升压较高而输气量不大的场合。Reciprocating piston compressor is generally suitable for the occasion of high booster pressure and small gas flow.

D、以上都不对

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第9题

离心压缩机的特性曲线I. characteristic curve of centrifugal compressor压力比pressure ratio ε－ Q1特点characteristic：（）

A、Q1增加，ε减小Q1 increases, epsilon epsilon decreases

B、当Q1≤Qmin，喘振surge

C、当Q1≥Qmax，滞止stagnation

D、稳定工况范围Stable operating condition range KQ

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第10题

压缩机与驱动机组合The compressor is combined with the driving unit（）

A、燃气轮机输气机组是由燃气轮机驱动离心式压缩机Gas turbine transmission unit is driven by gas turbine centrifugal compressor

B、电动机输气机组是由电动机驱动离心式压缩机Motor gas transmission unit is driven by the motor centrifugal compressor

C、燃气发动机输气机组是以天然气作燃料的活塞式内燃机驱动。Gas engine transmission unit is driven by piston internal combustion engine fueled by natural gas

D、以上都不对

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压缩机的进口节流调节Compressor inlet throttling regulation特点characteristic： 改变进口状态

压缩机的进口节流调节Compressor inlet throttling regulation特点characteristic：改变进口状态