烟草科技
煙草科技
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TOBACCO SCIENCE & TECHNOLOGY
2015年
5期
94-97
,共4页
姚志超%范伟%肖一博%张胜利%王德吉
姚誌超%範偉%肖一博%張勝利%王德吉
요지초%범위%초일박%장성리%왕덕길
水槽式烟梗回潮机%水位%温度控制系统%可编程控制器%PID控制
水槽式煙梗迴潮機%水位%溫度控製繫統%可編程控製器%PID控製
수조식연경회조궤%수위%온도공제계통%가편정공제기%PID공제
Sink-type stem conditioner%Water level%Temperature control system%Programmable logic controller%PID control
由于水槽式烟梗回潮机温度控制系统受水位波动影响较大,造成水温波动,影响出口物料温度和含水率的稳定性。通过分析水温波动原因,对水槽式烟梗回潮机的加水、排水及加热管路进行了改进,将水位、水温控制模式由上下限控制改为PID闭环控制。结果表明:改进后的水槽式烟梗回潮机避免了水位周期性波动,有效提高了水温的稳定性。以水温60℃进行对比测试,温差由±5.52℃降低至±1.43℃,标准偏差由1.02℃降低至0.62℃。水温的精准控制保证了出口物料温度和含水率的稳定性,满足了梗丝生产的工艺需求。
由于水槽式煙梗迴潮機溫度控製繫統受水位波動影響較大,造成水溫波動,影響齣口物料溫度和含水率的穩定性。通過分析水溫波動原因,對水槽式煙梗迴潮機的加水、排水及加熱管路進行瞭改進,將水位、水溫控製模式由上下限控製改為PID閉環控製。結果錶明:改進後的水槽式煙梗迴潮機避免瞭水位週期性波動,有效提高瞭水溫的穩定性。以水溫60℃進行對比測試,溫差由±5.52℃降低至±1.43℃,標準偏差由1.02℃降低至0.62℃。水溫的精準控製保證瞭齣口物料溫度和含水率的穩定性,滿足瞭梗絲生產的工藝需求。
유우수조식연경회조궤온도공제계통수수위파동영향교대,조성수온파동,영향출구물료온도화함수솔적은정성。통과분석수온파동원인,대수조식연경회조궤적가수、배수급가열관로진행료개진,장수위、수온공제모식유상하한공제개위PID폐배공제。결과표명:개진후적수조식연경회조궤피면료수위주기성파동,유효제고료수온적은정성。이수온60℃진행대비측시,온차유±5.52℃강저지±1.43℃,표준편차유1.02℃강저지0.62℃。수온적정준공제보증료출구물료온도화함수솔적은정성,만족료경사생산적공예수구。
The original temperature control system in sink-type stem conditioner was affected by the fluctuation of water level greatly, which resulted in the fluctuation of water temperature and further the temperature of and moisture content in output stem. By analyzing the reasons causing the fluctuation of water temperature, the water supply, drain and heating pipelines were improved, instead of limit control, PID closed loop control was used for controlling water level and temperature. The results showed that the periodic fluctuation of water level was avoided and the water temperature became stabler. A comparative test of water temperature of 60 ℃ indicated that the temperature difference reduced from ± 5.52 ℃ to ± 1.43 ℃ and the standard deviation from 1.02 ℃ to 0.62 ℃. The precise control of water temperature ensures the stability of temperature and moisture content of output stem and fulfills the technical requirements of cut stem production.