工业用空气压缩机能源浪费的原因 - 济南www.878365.com价格
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工业用空气压缩机能源浪费的原因
Time:2019-01-23 15:50:07       来源:/      

1、空载能耗高。目前企业压缩机为单台N立方,压缩机开停只有N或N的倍数,www.878365.com设备开停依赖人工管理的传统。尤其在用气负载频繁变化时,系统不能快速反应,也不能实现压缩机排量的微调。这形成了空压站各压缩机的空载。通常情况下,当压力达到y公斤时,www.878365.com进入卸载运行状态,当压力降到x公斤时,压缩机进入空载状态,即关闭进气阀使电机处于空转状态,同时将油器预分离罐中多余的压缩空气通过放空阀放空。关闭进气阀使电机空转虽然可以使www.878365.com不需要再压缩气体作功,但www.878365.com在空转中还是要带动螺杆或者活塞做回转运动,电耗仍在继续发生。实际检测发现,www.878365.com空载时的能耗高达其满载运行时的40%~55%。

1. High no-load energy consumption. At present, the compressor in an enterprise is a single N cube, and the start and stop of compressor is only N or N multiple. The start and stop of air compressor equipment relies on the tradition of manual management. Especially when the gas load changes frequently, the system can not respond quickly, nor can it realize the fine-tuning of compressor displacement. This forms the no-load of each compressor in the air compressor station. Usually, when the pressure reaches ykg, the air compressor enters the unloading operation state. When the pressure drops to xkg, the compressor enters the unloading state. That is to say, the compressor closes the intake valve to make the motor in the idling state. At the same time, the excess compressed air in the oil pre-separating tank is emptied through the emptying valve. Closing the intake valve to make the motor idle can make the air compressor no longer need to compress the gas to work, but the air compressor still needs to drive the screw or piston to do rotary motion during idling, and power consumption is still occurring. The actual test shows that the energy consumption of air compressor in no-load operation is as high as 40%-55% of its full-load operation.
2、爬升能耗高。螺杆压缩机有两种运行模式,加、卸载运行模式或空载、满载运行模式。加、卸载控制方式使得压缩气体的压力在x公斤~y公斤之间来回运动。X公斤是最低工作压力值,即能够保证用户正常工作的最低压力。一般情况下,x公斤、y公斤之间关系可以用下式来表示:y公斤=x公斤+,δ是一个百分数,其数值大致在10%~25%之间。压差一般在一公斤以上。通过理论计算和实际检测,得知www.878365.com压力每增加1公斤,能耗增加5-6%。由此可知,在加、卸载供气控制方式下的www.878365.com,其工作气压由X到Y,有一个气压爬升的能耗,存在事实上的能源浪费。
2. Climbing energy consumption is high. There are two operation modes of screw compressor, loading and unloading operation mode or no-load and full-load operation mode. The loading and unloading control mode makes the pressure of compressed gas move back and forth between x kg and Y kg. Xkg is the lowest working pressure value, that is, the lowest pressure that can ensure the normal work of users. In general, the relationship between x kg and Y kg can be expressed by the following formula: y kg = x kg +, and delta is a percentage, and its value is approximately between 10% and 25%. The pressure difference is usually more than one kilogram. Through theoretical calculation and practical testing, it is known that the energy consumption of air compressor increases by 5-6% for every 1 kg increase in pressure. It can be seen from this that, under the control mode of loading and unloading air supply, the working pressure of air compressor is from X to Y, there is an energy consumption of pressure climbing, and there is a de facto waste of energy.
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同时,高于x公斤的气体在进入用气终端前,其压力需要经过减压阀减压至接近x公斤,压力越高流速越快,这就造成同样的工况,压力越高所耗气量越大。这一过程同样是一个能源浪费的过程。
At the same time, before entering the gas terminal, the pressure of the gas above XKG needs to be reduced to close to XKG through the pressure reducing valve. The higher the pressure, the faster the flow rate, which results in the same working condition, and the higher the pressure, the greater the gas consumption. This process is also a waste of energy.
3、传统管理。在空压站的使用管理过程中,存在两种不可避免的矛盾。一种是企业对www.878365.com管理人员有明确的考核,那么会出现气压经常不够或能少开就少开的习惯,不利于生产线的正常运行,或出现压力达不到设备使用要求导致用气终端故障增加。一种是对www.878365.com管理人员没有明确的考核,这就会导致www.878365.com多开、空压站空载能耗高的结果。无论哪种管理模式,其结果都会是空压站电能浪费增大,而且不利于安全生产。
3. Traditional management. There are two unavoidable contradictions in the use and management of air compressor stations. One is that an enterprise has a clear assessment of air compressor managers, so there will be the habit of insufficient air pressure or opening less, which is not conducive to the normal operation of the production line, or the pressure can not meet the requirements of equipment use, leading to the increase of gas terminal failure. One is that there is no clear assessment of air compressor managers, which will lead to more air compressors open, air compressor station no-load energy consumption is high. No matter what kind of management mode, the result will be that the waste of power in air compressor station will increase, and it is not conducive to safe production.
4、其他。空压站www.878365.com配置的缺陷或用气端用气量不断变化时,管网供气压力不可避免地产生较大幅度的波动。这就导致www.878365.com频繁加、卸载,频繁调节进气阀,会加速进气阀的磨损,增加维修量及维修成,同时供气稳定性差,供气精度达不到工艺要求,影响产品品质。
4. Others. When the air compressor configuration of air compressor in air compressor station is defective or the gas consumption at gas end is constantly changing, the supply pressure of pipeline network inevitably produces relatively large fluctuations. This will lead to frequent loading and unloading of air compressors, frequent regulation of intake valves, will accelerate the wear of intake valves, increase the maintenance volume and maintenance, while poor air supply stability, air supply accuracy can not meet the process requirements, affecting product quality.

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