HyTec Concept

 

Why HyTec Coolers were Developed?

NPi learned of ongoing requirements to cool hydraulic oil in elevator systems from an elevator service company. The firm, (already using our Compact Cabinet Coolers to cool high temperatures in elevator control cabinets,) told us that hot oil frequently caused the shut down of elevators. Also, cooling equipment to maintain ‘reasonable’ oil temperatures was expensive, complicated, hard to install and never seemed to solve the problem.
We checked, and found that a real need did exist. We also found other serious symptoms related to overheated oil that needed to be addressed. Symptoms such as:

Leveling Problems
Bounce and Chatter
Short Seal Life
Hot Oil Odors

As experts in thermal solutions, NPi set out to design and produce a product specifically tailored for hydraulic elevators .To be successful, it had to be:

• EFFECTIVE
• ADAPTABLE
• AFFORDABLE
• EASY TO INSTALL

HyTec Oil Coolers meet ALL of these criteria

How Do They Work?

HyTec Coolers use Heat Pipe Technology. Heat pipes move heat about 1000 timesfaster than solid copper, and have no moving parts. Noren heat pipes last 30 years with no maintenance or degradation in performance. Aluminum fins are attached to up to 12 individual 5/8” heat pipes, creating a matrix structure resembling a ‘radiator.’ These structures are called cores. They measure 2” thick by 7½” wide and range in length from 44” to 53”. HyTec cores are inserted directly into the reservoir, and held in place by a metal enclosure. As hot oil from the return line flows into the reservoir, it is captured, and passes through the cores. This enables the heat pipes to ‘extract’ heat from the oil and transport it to the ‘top’ of the core - above the tank. Common fans are mounted atop the cores and draw ambient air through the heat pipe/fin matrix to remove heat from the system.