Since the 1970s, the heat pump industry has entered a golden period. Countries around the world have attached great importance to the research work of heat pumps. For example, the International Energy Agency and the European Community have formulated large-scale heat pump development plans. New heat pump technologies are emerging and the use of heat pumps is also used. Continuous development, widely used in air conditioning and industrial fields, plays an important role in energy conservation and environmental protection.
Relative to the development of the world's heat pump, the research work of China's heat pump started about 20-30 years later. After the founding of New China, with the arrival of a new upsurge of industrial construction, heat pump technology began to be introduced into China. After entering the 21st century, the rapid urbanization of China's coastal areas, the growth of GDP per capita, the 2008 Beijing Olympics, and the 2010 Shanghai World Expo have driven the development of China's air-conditioning market and promoted the increasingly widespread application of heat pumps in China. The development of heat pumps is very rapid, and the research of heat pump technology continues to innovate.
Asian Pump Network learned that from the start of the heat pump in 2001, after 10 years of cultivation, the Chinese heat pump industry began to transition from the lead-in period to the growth period. The rapid development of the heat pump industry, on the one hand, benefits from energy shortages that make energy-saving advantages of heat pumps more and more obvious. On the other hand, it has a lot to do with the addition of multiple forces to promote industrial technological innovation.
Ten years of development will create greater glories, in order to further promote the rapid development of the industry and promote industrial restructuring and technological innovation. At the request of a large number of enterprises in the industry, we will hold the “CIHPE 2011 China International Heat Pump New Products, New Technology and Supporting Facilities Exhibition†at the Shanghai Everbright Convention & Exhibition Center to share the huge market brought by the 2010 Shanghai World Expo. We will “prominently develop the brand and develop "Innovation, practical results, and strengthening services," the purpose of the exhibition, with a unique creativity, scientific and rational integration of communication and excellent service, with a new concept for the majority of exhibitors to provide "high standards, high quality, high quality" display exchanges The stage to create the largest, most valuable and most authoritative industry event in the heat pump industry.
Sectional Door Accessories: motor 220V-380V, control box, spring break device, cable break device , aluminum alloy rope pulley, enhanced shaft bracket, air bag system, duplex enhanced guide wheel bracket.
Detail introduction for above main accessories
1.Motor and controller:
The garage door operator is designed for residential overhead sectional and tilt doors.
The operator memorizes the limit positions and unique braking system that slows the unit down at the end of its travel.
Rolling code remote control with max. 20 pcs hand transmitters.
The operator is equipped with a manual release lever which allows manual operation of the door in case of power failure.
The controller has a security LOCK function which prevents operation of the door from transmitter.
2.spring break device:
Sectional doors are hinged and they bend in the tracks as the door opens and closes. Many of these doors are counterbalanced with extension springs, also designated "stretch springs," and they have seven characteristics. The length is the measurement of all the coils pressed together. This, along with the inside diameter of the coils and wire size - the thickness of the wire from which the springs are made - determine the stretch, the distance the spring is extended - normally half the door height, and pull, the force the spring pulls when stretched its normal length. The type of ends determine how the ends of the spring are mounted. The initial tension is the percentage of pull needed to separate the coils. This is determined by the pitch with which the springs are wound. On sectional garage door springs this is normally 15 percent. For example a 100 pound pull spring requires 15 pounds of weight to separate the coils; when a door is open the two springs will support 15 pounds of door weight without any stretch.
Most extension springs are made of oil tempered wire. These are normally coated or painted. Some springs are made of galvanized wire.
3.able break device:
cable break device ,door hardware
adjustable bottom bracket .
the raw material hot plate
zinc plated
safety device
adjustable bottom bracket
the raw material hot plate
zinc plating
spring safety device ,2" and 3" safety device
once the cable is broken ,this devoice can keep the hurt away from the door falling
4.aluminum alloy rope pulley
Equipment: CNC stamping/punching machine, CNC bending machine, CNC cutting
machine, 5~250 tons punching machines, welding machine, polish machines...
Processed material: stainless steel: copper, carbon steel
Surface treatment: Hot galvanized, polishing
Making process:Stamping, deep drawing,bending, punching, laser cutting,threading,
welding, tapping, riveting, grinding
5.air bag system
It is a safety device. When the door is down to hit something, it will up automatically.
Operation pressure:<3mbar
Battery:CR2032*2
Battery lifetime>1 year
Emission frequency: 315MHZ
Emission power:<10mW
Receiver power source:12V
6.duplex enhanced guide wheel bracket
Determining the right type of sectional door roller for your garage door tracks can be a little confusing, especially when you do not know what you need to look for in a garage door roller. To simplify things, there are two primary things you need to be aware of. First are the actual dimensions of the roller, and second is purpose that you will be using the door for. You can read below about measuring your roller and choosing the right quality of material for your door.
Other Door Accessories,Electronic Door Accessories,Automatic Door Accessories,High Speed Door Radar Detector
Shenzhen Hongfa Automatic Door Co., Ltd. , https://www.hfgaragedoor.com