90% efficiency Eurovent certificated thermal wheel

wooden case, Polyethylene foams

Specifications

90% efficiency Eurovent certificated thermal wheel

Rotary heat exchanger, also known as heat recovery wheel, thermal wheel and enthalpy wheel, is a type of energy recovery heat exchanger positioned within the supply and exhaust air streams of an air handling system, or in the exhaust gases of an industrial process, in order to recover the heat energy.

Features of Holtop rotary heat exchanger

- Synthetical material with high hydrophilicity. 3A molecular sieve can effectively avoid secondary pollution.

- Advanced technology and special rotary heat exchanger design, high efficiency up to 90%, sensible heat and enthalpy recovery available.

- Double sealing system and purge sector, air leakage less than 0.3% when temperature different is above 200Pa

- Various installation type and motor position available, convenient for each project case.

- Built in top quality imported motor from Germany, CE and Eurovent certificated.

Specifications and dimensions of Holtop rotary heat exchanger

Working principle of Holtop rotary heat exchanger

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%.

Product details

Wheel materials

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

Casing construction

The wheel of the rotary heat exchanger is made of alternating layers of flat and corrugated aluminum foil to form the alveolate shape. Various height of corrugation is available. Flat surface ensures minimum leakage. Interior spokes are used to mechanically bond the rotor’s laminations. These are threaded at the hub and welded at the periphery.

Wheel Construction

The wheel of the rotary heat exchanger is made of alternating layers of flat and corrugated aluminum foil to form the alveolate shape. Various height of corrugation is available. Flat surface ensures minimum leakage. Interior spokes are used to mechanically bond the rotor’s laminations. These are threaded at the hub and welded at the periphery.

Bearing and drive system

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

- V-belt with big interface. Long service life.

- Spring shock absorber insures steady operation

- Integrated motor and speed reducer free from maintenance

Double sealing and purge sector 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.

Installation types and motor position

The motor is installed at the corner of the rotary heat exchanger, the position of the corner is marked from no. 1 to 4, and the motor position is optional.

Application

Rotary heat exchanger can built in air handling unit(AHU)as a main part of the heat recovery section. Usually side panel of the exchanger casing is unnecessary, except that bypass has been set in AHU. It can also be installed in the ducts of ventilation system as a main part of the heat recovery section, connected by flange. In this case, side panel of the exchanger is necessary to prevent leakage.

Holtop Factory

Holtop is one of the best manufacturer in ERV/HRV, heat exchanger and AHU area in China, founded in 2002, areas covered more than 30,000 square meters, turnover of 2012 is 42 million dollars, we have enthalpy testing lab. for products test. As a leader in energy/heat recovery equipments, we cooperate with more than 30 famous companies who located in Europe, the Middle east, Korea, Southeast Asia, Taiwan, etc. supplied equipment to Beijing Olympic and Shanghai Expo 2010, works together with domestic and international brands like Midea, Haier, Hitachi, etc. 

Holtop partner

Holtop cooperate with world famous brand or offer OEM service including Hitachi, LG, McQuay, TRANE, Systemair, Aldes, York, Haier, Gree, MHI Group, Midea, Carrier, Dunham-Bush, etc.

Holtop certificate

Holtop products stand for TOP quality in heat recovery ventilation filed in China, certificated by CE, Eurovent, ISO and other different approved tests like anti-flaming test, anti-mold test, energy saving product test. Etc.