Chinese Professional Polyurethane Air Duct Panel - Liquid Circulation Heat Exchangers – Holtop

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Our pursuit and corporation aim should be to "Always satisfy our consumer requirements". We carry on to build and style and design remarkable quality items for both our outdated and new clients and reach a win-win prospect for our clients at the same time as us for Counterflow Heat Exchanger, Airflow Heat Recovery, Industrial Heat Exchanger, All the opinions and suggestions will be greatly appreciated! The good cooperation could improve both of us into better development!

Chinese Professional Polyurethane Air Duct Panel - Liquid Circulation Heat Exchangers – Holtop Detail:

Liquid Circulation Heat Exchanger

Working Principle

Liquid circulation heat exchanger is liquid to air heat exchanger, heat exchangers installed in both fresh air side and exhaust air side, the pump between the 2 heat

exchangers make the liquid circulate then the heat in the liquid preheat or precool the fresh air. Normally the liquid is water but in order to decrease the freezing point,

moderate ethylene glycol will be added into the water according to reasonable percentage.

Features

(1) Fresh air and exhaust air heat exchanged by separated liquid pipes, zero cross contamination.Suitable for hospital, germfree lab and industries which discharge

poisonous and harmful gas.

(2) Stable and reliable operation, long service life

(3) Flexible connection between fresh air and exhaust air exchangers, easy installation which is convenient for old AHU improvement.

(4) Accessories like water pump, heat exchangers are conventional, easy and low maintanence costs.

(5) Wide range of application, various connection ways like one to one, one to many or many to many.

Specifications

(1) Liquid circulation heat exchanger is sensible heat exchanger, efficiency is between 55% to 60%.

(2) Suggested rows are 6 or 8, face velocity not over 2.8m/s

(3) The choice of circulating pump can refer to the fresh air and exhuast air pressure drop and the waterflow 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 to 6 celsius lower than the local minimum winter outdoor temperature, percentage of hybridcan

be refered 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

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Well-run gear, qualified revenue workforce, and superior after-sales companies; We've been also a unified huge loved ones, anyone persist with the organization benefit "unification, determination, tolerance" for Chinese Professional Polyurethane Air Duct Panel - Liquid Circulation Heat Exchangers – Holtop, The product will supply to all over the world, such as: Provence, venezuela, Toronto, We have the best products and professional sales and technical team.With the development of our company, we are able to provide customers best products, good technical support, perfect after-sales service.

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A good manufacturers, we have cooperated twice, good quality and good service attitude.

By Judy from Congo - 2016.09.30 16:36

The manufacturer gave us a big discount under the premise of ensuring the quality of products, thank you very much, we will select this company again.

By Sarah from Suriname - 2016.12.02 14:11