Transparent Roller Shutter Door
Material: polycarbonate (PC bulletproof plastic)
Using aluminum profiles for door connection piece, two-layer structure , special design ,embedded into the door sheet. Simple and elegant, strong resistance to stress.
The base is made of aluminum alloy, special design, corrosion-resistant simple and aesthetic.
Mute track is made of aluminum alloy, dual-slot design, the mute material can be embedded into the slot, and creating a quiet environment.
Control system : 24V DC , mute operation, safe and reliable , durable and long life . In the case of obstacles ,doors rebound or stop automatically stop during opening and closing process.
Door opening and closing process, lighting and delaying three minutes automatically ; users can switch to manual option when power failure, uninterruptible power supply . Please contact with our technical department for particular requirements.
Transparent Roller Shutter Door,Transparent Curtain Roller Shutter Door,Commercial Transparent Roller Shutter Door,Polycarbonate Transparent Roller Shutter Door Shenzhen Hongfa Automatic Door Co., Ltd. , https://www.highspeedshutterdoor.com
Chaoyang vigorously promote two new technology of frequency heating
In the winter of 2009, some heating units in Chaoyang urban area adopted new technology of two-stage frequency conversion, which not only improved the heating quality, but also saved a lot of electricity. Recently, the city's heating office organized more than 20 urban heating companies to use this new technology, Yandu Heating Co., Ltd. and Twin Towers Heating Co., Ltd. visited to learn and promote this new technology. In recent years, with the expansion of the city to improve quality, Chaoyang urban area more and more new residential area, heating area reached 20.6 million square meters, only the macro-thermal heating is 24-hour continuous heating, while the macro-thermal is responsible for urban 10 % Of the heating area, the remaining 90% by the regional boiler room intermittent heating. As residential areas farther and farther away from the boiler room, heating companies have to use high-power, high-lift network heat pump, to solve the heating end heating is not hot problem. This on the one hand, resulting in water, electricity and other energy waste, on the other hand cause uneven heating and cooling users, heating end heating is not hot problem is not fundamentally resolved. After using two variable frequency pump heating system, the secondary pump system can be used to connect the heat source and the primary network flexibly, which solves the problem of inconsistency between the low flow operation of the boiler and the primary network operation flow. The difference between the heat source and the heat network Flow can operate independently, without affecting each other; According to the constant changes of heating objects, adjust the system at any time, return water temperature.