rotary heat recovery wheel for AHU

Overview

Quick Details

Liquid Flow Rate:

2~5m/s

Maximum Working Pressure:

0

Weight:

100Kgs

Dimension(L*W*H):

500~5000mm diameter

Condition:

New

Warranty:

2 years

After-sales Service Provided:

Video technical support, Online support

Place of Origin:

Zhejiang, China

Brand Name:

EPT

Voltage:

0

Certification:

CE

Structure:

Heat Recovery Exchanger

Applicable Industries:

Hotels, Building Material Shops, Restaurant, Home Use, Construction works, Energy & Mining

Product name:

Rotary heat recovery wheel

Aluminum foil thickness:

0.05mm

Efficiency:

70%

Coating:

3A molecular sieve of 0.04mm thickness

Sealing System:

Unique double-sealing system

Purge Sector:

10 degree, cross contamination less than 0.3%

Bearing and Lubrication:

Life-timelubricated ball bearing or roller bearing

Driving System:

Motor, turbine-worm reducer, belt pulley and V belt

Application:

AHU, Ducting System

Working condition:

-40-70°C, Max velocity 5.5m/s, Max pressure 2000Pa

Supply Ability

Supply Ability:
100000 Piece/Pieces per Year rotary heat recovery wheel

Packaging & Delivery

Packaging Details
Rotary Heat Recovery Wheel Packed in Seaworthy Wooden Cases
Port
Xingang Port
Lead Time
:
Quantity(Pieces) 1 – 100 >100
Est. Time(days) 15 To be negotiated

Online Customization

Product Description

Rotary heat recovery wheel for AHU with 500~5000mm diameter

Features of rotary heat recovery wheel 

The sensible heat wheel is made by aluminum foils of 0.05mm thickness. And the total heat wheel is made by aluminum foils coated
with 3A molecular sieve of 0.04mm thickness.

Two air streams flow crossly

Suitable for room ventilation system and industrial ventilation system

Heat recovery efficiency up to 70%

Working principle

Rotary heat exchanger is composed of alveolate heat wheel, case, drive system and sealing parts.
The exhaust and outdoor air pass through half of the wheel separately, when the wheel rotates, the heat and moisture are exchanged
between the exhaust and outdoor air. The energy recovery efficiency is up to 70% to 90%.

Wheel Materials

The sensible heat wheel is made by aluminum foils of 0.05mm thickness. And the total heat wheel is made by aluminum foils coated with 3A molecular sieve of 0.04mm thickness. Molecular sieve selectively absorbs moisture and expels odor by molecular lattice.


Rotary Heat Exchanger Casing Construction 

Technical Summerizations

Laminar Flow Channels
The wave type structure of the wheel forms narrow channels in the direction of air flow. The air flow forms a laminar flow inside the wheel when passing through it. When the wheel rotates, dust won’t accumulate on the channel since outdoor air and exhaust air respectively flow through the channels from two directions. This is called selfcleaning.

Double Sealing System
Unique double-sealing system is installed around the rotor periphery and along the central beam. The sealing materials are soft and dense of small friction and longer service life.

Purge Sector
Because of the structure of rotary heat exchanger, the outdoor air and exhaust air will mix. According to the air velocity, wheel rotating speed and direction, purge sector is installed to prevent the exhaust air from entering the outdoor air. The purge sector enables a small fraction of outdoor air to blow back the exhaust air in the alveolate holes to its side. A minimum pressure difference of 200Pa between the outdoor air side and the exhaust air side is required to ensure the cleaning effectiveness. With all conditions provided, the sector can ensure a leakage below 0.3% from exhaust air to outdoor air.

Bearing and Lubrication
The hub of the wheel is equipped with life-timelubricated ball bearing or roller bearing, and with covers at both sides. No maintenance is required under normal usage.

Driving System
The wheel is drove to rotate by this system. The drive system is composed of motor, turbine-worm reducer, belt pulley and V belt.The motor is installed on the special bracket tensioning by the spring, it can ensure the gradually loose of V-belt in case of sudden stop.

Winter Operation
The rotary heat exchanger may frost in the extremely cold winter. Frost usually occurs in the
exhaust air side. It would result in blockage and airflow reducing, but do no harm to the wheel. As
shown on the graph, when the line connecting OA to RA across the 100% relative humidity curve,
the wheel will frost. To prevent this, the air should be pre-handled till conditions such as OA1, RA1 or RA2, thus connecting line between OA1 and RA1(RA2) would not pass across the saturation humidity curve. To avoid the frost blockage, the wheel should rotate at low speed of 2rpm or intermittently, for example stops 10 seconds each 10 minutes of operation. However, under no circumstance
should the wheel stop for long period since dusts will get gathered on the wheel, resulting in lower recovery efficiency and ventilation deficiency in a worse case

Company Profile

About us

Jinan Nova Environment Technology Co., Ltd is founded is 2011. It is with a mission to create more high quality environment friendly heat recovery ventilation products to contribute to the health and convenience for the society and people in the future.
Our engineers have a background of many years of experience in the field of HVAC and environment protection. The company has got ISO9001 certified. Our high quality products have got CE, RoHS etc certificates and got approval from clients in Europe, US, UK, Russia etc.

Certificates
After years of dedication of the research and technology development in the field of Air Conditioning and Ventilation, Nova Environment has many achievements on the product innovation and quality management, which are certified by National and International authorities.