Saepuru ärastussüsteemi energiakao vähendamine
Laen...
Kuupäev
2017
Kättesaadav alates
Autorid
Ajakirja pealkiri
Ajakirja ISSN
Köite pealkiri
Kirjastaja
Eesti Maaülikool
Abstrakt
Käesolevas töös analüüsiti puidutöötlemistehase aspiratsioonisüsteemi tehnoloogilist ja
tehnilist olukorda ning võimalikke puudusi sellega seonduvalt.
Uurimistöös käsitleti saepuru aspiratsioonisüsteemi energiakadude tekke põhjuseid ja
energiakadude vähendamise võimalusi. Uurimustöö käigus teostati seadmete elektrivõrgu
parameetrite mõõtmisi, s.h. aspiratsioonisüsteemi mootorite koormuste mõõtmisi,
ventilatsioonitorustikus õhuhulkade ja õhukiiruste mõõtmisi. Saadud mõõtmistulemused
näitasid, et tehase aspiratsioonisüsteemis on suured elektrilised kaod ja õhukaod. Elektriliste
kadude põhjusteks on alakoormatud aspiratsioonisüsteemi mootorid samuti nende seadmete
kasutamine ka töövälisel ajal. Õhukadude põhjusteks on mittevastav torustik, sulgsiibrite
suured õhulekked.
Antud mõõtmistulemuste järgi tehti kokkuvõttev alalüüs ja ettepanekud saepuru
ärastussüteemis energiakadude vähendamiseks. Selleks tuleks seadmetele paigaldada
kaasaegsed sulgsiibrid, vähendada magistraaltorustiku rõhutakistust koos selle
dimensioneerimisega. Väljatõmbetorustiku erinevad liinid võib kokku ühendada, vähendades
sellega ka mootorite alakoormust, mille tulemusena saavutatakse oluline kokkuhoid.
Kuna antud töös ei käsitletud soojus- ja muid kadusid, ega tehnilisi lahendusi nende
vähendamiseks, mida praegune tehniline olukord põhjustab, siis võib antud uurimistööd
jätkata eelpoolmainitud teemade käsitlemisega.
In this research work, the technological conformity, technical condition and the possible associated deficiencies of the aspiration system located in the wood processing plant were analysed. In this research work the causes behind the saw dust aspiration system’s energy losses and the possibilities for reducing those losses were covered. During the course of the research work the measurement of the electrical parameters of the equipment was performed, including load curve measurements, volumes of air in ventilation piping and air speed measurements. The obtained measurement results indicated that the plant’s aspiration system experiences significant electrical and air losses. Electrical losses are caused by the largely underloaded motors of the aspiration system as well as the use of that equipment outside of working hours. Air losses are caused by non-conforming piping and large air leaks from shut-off dampers. According to the obtained measurements, a summary analysis was prepared and proposals made for reducing the energy losses of the dust removal system. This would require the installation of modern shut-off dampers, and dimensioning and reducing the pressure resistance of the main pipelines. Various exhaust ventilation lines may be connected together, thereby reducing the underload on the motor, with the result being significant savings. Since the given work did not cover thermal and other losses, or the technical solutions for reducing them, which the current technical condition is causing, then the given research work could be continued by covering the above mentioned topics.
In this research work, the technological conformity, technical condition and the possible associated deficiencies of the aspiration system located in the wood processing plant were analysed. In this research work the causes behind the saw dust aspiration system’s energy losses and the possibilities for reducing those losses were covered. During the course of the research work the measurement of the electrical parameters of the equipment was performed, including load curve measurements, volumes of air in ventilation piping and air speed measurements. The obtained measurement results indicated that the plant’s aspiration system experiences significant electrical and air losses. Electrical losses are caused by the largely underloaded motors of the aspiration system as well as the use of that equipment outside of working hours. Air losses are caused by non-conforming piping and large air leaks from shut-off dampers. According to the obtained measurements, a summary analysis was prepared and proposals made for reducing the energy losses of the dust removal system. This would require the installation of modern shut-off dampers, and dimensioning and reducing the pressure resistance of the main pipelines. Various exhaust ventilation lines may be connected together, thereby reducing the underload on the motor, with the result being significant savings. Since the given work did not cover thermal and other losses, or the technical solutions for reducing them, which the current technical condition is causing, then the given research work could be continued by covering the above mentioned topics.
Kirjeldus
Bakalaureusetöö
Tehnika ja tehnoloogia õppekaval
Märksõnad
bakalaureusetööd, energiakaod, ventilatsioon, alakoormus