Log på Markedsindex.dk   
Opret blog   
Markedsindex.dk Markeder Butikker Debat Blogs
   Du er her: Markedsindex.dk -> Blogs -> New vacuum furnace heat exchanger -> Thermal deoxygenation method is to heat water to the boiling
   
dryerpumpae
 | 
Oprettet 29. September 2020 kl. 04:11
 | 
0 kommentarer
 | 
Tip en ven

Thermal deoxygenation method is to heat water to the boiling

and all the gases dissolved in the water will be separated. Today, the plate heat exchanger manufacturers are here to tell you two deaeration methods, let’s take a look at them together ~    chemical deaeration method, which is usually treated with hydrazine or nitrous acid.The heat exchanger is subject to oxygen corrosion, and the concentration of oxygen will directly affect the rate of corrosion. However, it is generally believed that it is a reducing agent that reacts with oxygen in water. Under the action of large amplitude, the tubes collide with each other and are worn out in the center of the span. Some think it is a cathodic corrosion inhibitor, some think it is an anodic corrosion inhibitor, and some think it is an alternative reaction.

Vibration damage of the tube usually occurs near the tube sheet and the connection interface with the tube sheet, the outer edge of the tube bundle at the inlet and outlet of the shell and the second and third rows of tubes from the top of the baffle gap.. Metallurgical failure. The flow of the body causes the vibration damage of the plate heat exchanger tube, and its danger is increasing day by day. Fatigue fracture at material defects. 1.  

3. Although hydrazine has been widely used, there have always been different opinions on its corrosion inhibition mechanism. The tube that is not supported at the round notch of the baffle is damaged due to the friction between vibration and the edge of the plate. The induced vibrations mainly include vortex separation, turbulent buffeting, fluid elastic vibration, etc. The relative movement and wear of the pipe and the wall of the baffle pipe hole, even 'self-saw' broken.  2.   2.  

Thermal deoxygenation method is to heat water to the boiling temperature under the corresponding pressure, so that the oxygen and other gases dissolved in the water are resolved. The reaction between hydrazine and oxygen reduces the concentration of oxygen, thereby slowing down the rate fine copper heat exchanger of oxygen corrosion.  2. There are three types of tube wear. There are two types of fatigue fracture of the pipe



0 kommentarer


Du skal være logget ind for at skrive en kommentar


Indtast brugernavn

*

Indtast password

*
 
Glemt dit password? Opret et login her

New vacuum furnace heat exchanger

Se mere om bloggeren dryerpumpae

Forwon have our own testing lab and the most advanced and complete inspection equipment,which can ensure the quality of the products. Our annual outp...

Gå til bloggen New vacuum furnace heat exchanger

Læs min blog


Seneste indlæg

Til blogindlæget It has a relatively small footprint and can be applied

It has a relatively small...

Because this material can effectively exchange heat, it ...

Til blogindlæget This mode is opposite to the surface heat exchanger

This mode is opposite to ...

First of all, we will introduce the surface heat exchang...

Til blogindlæget Thermal deoxygenation method is to heat water to the boiling

Thermal deoxygenation met...

and all the gases dissolved in the water will be separat...

Til blogindlæget This two-phase method generates a very large heat flow with minimal modification

This two-phase method gen...

When approaching the hot side of the heat exchanger, the...


Arkiv