heat exchanger for air dryer

  East-Alliance Thermal Equipment Co.,Ltd, a HK-funded enterprise located in Chaoyang Industrial Zone of Jiangmen City in Guangdong Province,China,belong to Guangdong DongXu Group. The Company has been specializing in brazed plate heat exchangers manufacture and sales, which are widely applied to the fields involved in cooling, heating, oil pressure, vessel, electric power, paper making, metallurgy.etc.

The company possesses a complete set of professional production and detection equipments such as the stamping equipment, the vacuum brazing furnace and the high-vacuum helium leak detector, etc. Our mold design and development as well as the plate exchanger technology and application had achieved an international leading level.

As a Guangdong Province private technology enterprises,the products have complete independent intellectual property rights, Obtained many the national invention patents , obtained the national  technological innovation fund specialized to science and technology enterprises.It has been manufaturing high quality products with imported stainless steel by the most advanced vacuum welding furnace ensuring the first grade quality.

The company has been constantly carrying out the Quality Managenment System Standard of ISO9001:2000 and had passed the PED/CE and Rosh Certification to export to EU,by means of our high quality and elaborate products together with our professional and fast service,we are dedicated to satisfying the needs of all our clients worldwide

Q1. Where can I use EATB HE?

A1. EATB HE are suitable for almost any refrigerant-to-liquid or liquid–to-liquid application but without corrosive media, such as ammonia or seawater. Please see §6

Q2. Can I turn the unit around?

A2. Yes, all the EATB HEs are possible for all applications.

Q3. Can I use a EATB HE in swimming pool application?

A3. Yes. It is important to add the chloride after EATB HE, to avoid the risk of an unbalanced lever of chloride in the water passing through EATB HE. Nevertheless a stronger chloride will react with the copper, which is obviously not good for EATB HE unit.

Q4. Can I use a EATB HE in a steam application?

A4. Yes. We strongly recommend to respect the four aspects:

l  A free exit on the condense side avoids possible shocks

l  Steam inlet has to be at the “marked side” on the upper connection. The “marked side” has once channel less and the steam will therefore be surrounded by the liquid side.

l  Avoid formation of steam bubbles by adjusting the pressure on the secondary side correctly.

l  Avoid temperature differences over 50℃ in the start up procedure. When EATB HE is in operation the temperature difference can be increased.

Q5. If the EATB HE was dropped on the floor or got other physically damaged, how can I be sure it is still OK?

A5. To be 100% sure you have to determine the same test as East-Alliance does to verify the right quality of the unit, see §2.4.

Q6. When we tested the unit it is no longer tight. Can we solder the unit on the outside and make it tight?

A6. Alliance does not recommend repair soldering. If the customer, nevertheless, wants to try to repair the unit, a silver soldering of 45% should be used. Obviously there is no guarantee for a good result.

Q7. Can I use de-ionised water in the EATB HE?

A7. It is no problem for EATB HE itself to use de-ionised water. There might be a problem though, with the application, as the copper will react with the de-ionised water.

Q8. Won’t the smaller passages in a EATB HE foul up easily?

A8. No, EATB HE is less prone to fouling than tubular type heat exchangers. Fouling occurs when there is low fluid velocity (laminar flow) and uneven distribution of flow among the passages. The unique design of a EATB HE allows the heat exchanger to operate at extremely low velocities while maintaining turbulent flow. Furthermore, the internal design assures a well distributed flow over the heat transfer surface.