دایره المعارف تاسیسات برق (اطلاعات عمومی برق)
Lift with a central pistonLift with a lateral piston
1:1 (with technology GMV SWEDEN ABTM 1:1)
GPL® Goods-passenger lifts GPL® Goods-passenger lifts
with 2 pistons type ECwith 4 pistons type EC
1:2 (with indirect roped drive)
Lift with 1 pistonGoods-passenger lifts with 2 pistons
Traction goods-passenger lift
|Feature/function||Hydraulic lifts||MRL-type traction
(with power unit in the shaft)
|Shaft||The shaft is material-saving with minimum one reinforced concrete wall. Main forces are concentrated on the pit bottom. The shaft dilatation is not required even in apartment buildings. Small dimensions in relation to the car.||The shaft is massive, material-consuming, holds (the upper engine room in case of traditional lifts), a drive unit, a counterweight and a car. In case of neighbourhood of apartments, the shaft dilatation is recommended. Big dimensions in relation to the car.|
|Construction||Simple. Small number of parts - including rotating parts. No counterweight. Low lift weight: 40-60% lower than lifts without engine rooms.||Complicated construction. Many parts - including rotating parts: delivery wheels, bearings. Big length of repeatedly bent carrying ropes. The lift high weight in relation to the load.|
|Installation / operation||Exceptionally quick, safe, uncomplicated and cheap installation. Efficient repair and replacement of components.
|Complicated installation requiring highly qualified personnel. It is usually 2 times longer than in case of hydraulic lifts. Complicated repair and replacement of main units and ropes.|
|Operating costs||Low maintenance and spare part costs.||High maintenance costs and very high costs of spare parts.|
|Speed||Usually 0,63 m/s.||High, usually 1 m/s and higher.|
|Lift durability||Long life, approx. 2 times longer.||Moderately long.|
|Purchase cost||Lower by approx. 20-30% for a 2-5 stops lift.||Relatively high for lower travel heights.|
|Connection of power||Approx. 2 times higher.||Several kilowatts.|
|Electric energy consumption||Comparable or lower. A hydraulic lift goes down with switched off main engine. During the lift stop the energy is consumed by the car main lighting.||High energy is needed to move the counterweight in case of the car unbalancing (empty or fully loaded). During the lift stop the energy is consumed by a frequency converter (so called inverter) and the car lighting.|
No massive units above the car.
The machine room is usually separated, far from the lift working units.
|Medium. Higher risk for personnel during installation, repairs and maintenance. Ground tectonic motions or earthquakes can cause the construction fall down due to the massive elements located in the head room (traction machine or counterweight). Such cases were registered eg. in Israel. A specially protected lift construction is required.|
|Noise emission||The shaft does not usually contain
drive units. Noise is emitted in a closed engine room far from the rooms
in which people stay.
||The power unit and control unit situated in the shaft makes the noise emission going easier through the building. It can be particularly bothersome in apartment buildings because not all drive units are silent.|
|Ecology||Environment friendly. Exceptionally
material-saving shafs and the lift low weight as well as small number of
parts - means lower energy needed for production.
Hydraulic fluid undergoes 100% recycling after 5-10 years of operation.||The massive shafs and units: a massive traction machine and counterweight, long ropes, many parts - means higher energy needed for production. In drives are frequently used so called permanent magnets that require much energy during raw material exploration and in the production process what has a very negative environmental influence.|
Hydraulic lift with typically located power unit.
جذابیت های برق
در ستایش معماری
تکنیک های نورپردازی، مهندسی روشنایی
فکر اقتصادی، کارآفرینی
تکنولوژی های روز دنیا
504 لغت آیلتس IELTS(ضروری برای همه دانشجویان)
شرط پیشرفت+مدیریت زمان و انرژی
اطلاعات علمی ساده و خلاصه
خلاقیت های ناب ناب
کافه کتاب،فرهنگ و ادبیات
رسانه (ایران، بین الملل)
خنده های رنگی رنگی
دیدنی های تو دل برو
دیالوگ های ماندگار
وقایع و تصاویر تاریخی جذاب، گردشگری
ویرایش نشده ها
معرفی نویسنده و مدیر وبلاگ