We rely upon strategic thinking, constant modernisation in all segments, technological advances and of course upon our employees that directly participate inside our success for Original Factory China Holtop Eurovent and CE Approved Rotary Recuperator Heat Recovery Wheel (HRS~500-5000), We’re going to make higher efforts that can help domestic and international potential buyers, and produce the mutual advantage and win-win partnership between us. we’re eagerly waiting for your sincerely cooperation.
We rely upon strategic thinking, constant modernisation in all segments, technological advances and of course upon our employees that directly participate inside our success for China Heat Recovery Wheel, Heat Recovery Wheel in Ahu, our qualify products and solutions have good reputation from the world as its most competive price and our most advantage of after-sale service to the clients.we hope we can deliver a safe, environmental merchandise and super service to our clients from all of the world and establish strategic partnership with them by our skilled standards and unremitting efforts.
Liquid Circulation Heat Exchanger -Heat recovery core of AHU
Working Principle
Liquid circulation heat exchanger is liquid to air heat exchanger, heat exchangers usually installed in both fresh air (OA) side and exhaust air (EA) side, the pump between the two heat exchangers make the liquid circulate, then the heat in the liquid pre-heat or pre-cool the fresh air. Normally the liquid is water, but In winter, in order to decrease the freezing point, moderate ethylene glycol will be added into the water in reasonable percentage.
Features of Holtop Liquid Circulation Heat Exchanger
(1) Fresh air and exhaust air heat exchanged by separated liquid pipes, zero cross contamination. It suitable for heat recovery energy saving of air handling system of hospital, germfree lab and industries which discharge poisonous and harmful gas.
(2) Stable,reliable and long service life
(3) Flexible connection between fresh air and exhaust air exchangers, easy installation, which also is convenient for old AHU improvement.
(4) Heat exchangers are conventional, easy and low maintenance costs.
(5) Wide range of application, various connection methods like one to one, one to more, or many to many.
Specifications
(1) Liquid circulation heat exchangers is sensible heat exchangers, efficiency is between 55% to 60%.
(2) Suggested rows number in 6 or 8, face velocity not over 2.8 m/s
(3) The choice of circulating pump can refer to the fresh air and exhaust air pressure drop and the water flows pressure drop.
(4) Air flow direction has significant effect on the heat recovery efficiency, influence rate up to 20%.
(5) Freezing point of the hybrid ethylene glycol and water should be 4-6 ℃ lower than the local minimum outdoor temperature of winter, percentage of hybrid can be referred to the following table.
| Freezing point | -1.4 | - 1.3 | -5.4 | -7.8 | -10.7 | -14.1 | -17.9 | -22.3 |
| Weight percentage (%) | 5 | 10 | 15 | 20 | 25 | 30 | 35 | 40 |
| Volume percentage (%) | 4.4 | 8.9 | 13.6 | 18.1 | 22.9 | 27.7 | 32.6 | 37.5 |
 |
 |
- Previous: Combine Air Handling Units AHU
- Next: Heat Pipe Heat Exchangers
We rely upon strategic thinking, constant modernization in all segments, and technological advances for Original Factory China Holtop Eurovent and CE Approved Rotary Recuperator Heat Recovery Wheel (HRS~500-5000), We’re going to make higher efforts that can help domestic and international potential buyers, and produce the mutual advantage and win-win partnership between us. we’re eagerly waiting for your sincere cooperation.
Original Factory China Heat Recovery Wheel, Heat Recovery Wheel in AHU, our qualified products and solutions have a good reputation from the world as its most competitive price and our most advantage of after-sale service to the clients. we hope we can deliver safe, environmental merchandise and super service to our clients from all over the world and establish strategic partnerships with them through our skilled standards and unremitting efforts.
