What are the advantages of titanium heatexchangers?

     Titaniumheat exchangeris a heat exchange device made of high-quality titanium tubes that transferspart of 

the heat of the hot fluid to the cold fluid.

Figure 1 Titanium heat exchanger

     First, let's first understand theknowledge of the metal material "titaniumand titanium alloy" used tomake tita-

nium heat exchangers. Titanium is a silver-white transition metalcharacterized by light weight, high strength, meta-

llic luster, and resistanceto wet chlorine corrosion. Specifically, the density is small. The density ofmetal titanium 

is 4.51g/cm3, which is higher than aluminum and lower thansteel, copper, and nickel, but the specific strength is 

the first among metals.Titanium and oxygen have a great affinity. In the air or in anoxygen-containing medium, a 

dense, strong adhesion and inert oxide film isformed on the surface of titanium, which protects the titanium matrix 

fromcorrosion. Even due to mechanical wear, it will quickly heal itself orregenerate. This indicates that titanium is a

metal with a strong tendency topassivation. The titanium oxide film always maintains this characteristic whenthe 

medium temperature is below 315℃.

Figure 2 Titanium

      In order to improve the corrosion resistanceof titanium, surface treatment technologies such as oxidation, ele-

ctroplating,plasma spraying, ion nitriding, ion implantation and laser treatment have beendeveloped to enhance 

the protection of the titanium oxide film and obtain thedesired corrosion resistance. effect. In response to the need 

for metalmaterials in the production of sulfuric acid, hydrochloric acid, methylaminesolution, high-temperature wet 

chlorine and high-temperature chloride, a seriesof corrosion-resistant titanium alloys such as titanium-molybden-

um, titanium-palladium, titanium-molybdenum-nickel, etc. have been developed.Titanium uses titanium-32 molyb-

denum alloy, titanium-0.3 molybdenum-0.8 nickelalloy is used in environments where crevice corrosion or pitting 

corrosion iscommon, or titanium-0.2 palladium alloy is used locally in titanium equipment,and good results have 

been obtained.

Figure 3 Titanium

      Titaniumheat exchanger is made of high-quality titanium tubes. In terms of physical properties,titanium tubes 

have many advantages such as light weight and superiormechanical properties. Titanium is strong, and the tensile 

strength of puretitanium can reach up to 180kg/mm2. Some steels are stronger than titaniumalloys, but the speci-

fic strength (the ratio of tensile strength to density) oftitanium alloys exceeds that of high-quality steels. In addition, 

titaniumalloys have good heat resistance, low temperature toughness and fracturetoughness. The new titanium 

alloy has good heat resistance and can be used fora long time at 600℃ or higher. The titaniumheat exchanger is 

made of high-quality titanium tubes. In terms of physicalproperties, titanium tubes have many advantages such as 

light weight andsuperior mechanical properties. Titanium is strong, and the tensile strength ofpure titanium can 

reach up to 180kg/mm2. Some steels are stronger than titaniumalloys, but the specific strength (the ratio of tensile 

strength to density) oftitanium alloys exceeds that of high-quality steels. In addition, titaniumalloys have good heat 

resistance, low temperature toughness and fracturetoughness. The new titanium alloy has good heat resistance and 

can be used fora long time at 600℃ or higher.

Titanium chemical properties

      In terms of chemical properties, titaniumexhibits good stability and good corrosion resistance in a variety of 

industrial solutions. Industrial pure titanium is an excellent material forrefrigeration equipment accessories. Indust-

rial pure titanium can be widelyused in organic compounds, alkaline solutions, salt solutions and other media, and 

it is not easy to react with it, and has excellent corrosion resistance;pure titanium has low concentration of hydro-

chloricacid, sulfuric acid, nitricacid and other inorganic acids at room temperature. Good corrosion resistance; but 

with the increase of medium concentration and working temperature,industrial pure titanium is easy to chemically 

react with the above-mentionedinorganic acid, which reduces the corrosion resistance of titanium. Therefore,att-

ention should be paid to the concentration and concentration of the mediumduring heat exchange. Operating 

temperature.

     Titanium heat exchangers are not easy tolose metal ions, so they can make full use of this non-magnetic feature 

to be usedas heat exchangers for special purposes such as pharmaceuticals and food. Dueto the strong corrosion 

resistance of titanium, the heat exchanger has a longservice life and low maintenance costs during use.

     Take HangzhouShenshi Energy Saving Technology Co., Ltd. as an example. Hangzhou Shenshihas focused on 

heat exchangers for more than 10 years. In the past five years,it has accumulated many technologies and patents in 

the field of heat exchangers and micro-channel reactors. HangzhouShenshi has developed Marine Condensing 

Coils、SwimmingPool Heat Pump、Mariculture。

      ShenshiMarine condensing coils are made oftitanium with enhanced grooveline technology to achieve high 

efficient and highcorrosion resistance. Using sea water as cold source for providing heat/coldair, the marine AC can 

supply comfortable working can living condition for themarine.

Figure 4 example of coaxial heat exchanger for marine AC

      ShenshiShell and pipe heat exchanger isa kind of high efficiency heat exchanger which is composed of high 

efficient Ωstyle inner pipes and shell of baffle plastic plate(-PA6). It has the advantages of shell and tube heat 

exchanger and plate heat exchanger.

Figure 5 Ω-type titanium tube

Figure 6 Shell and pipe heat exchanger

     Hangzhou Shen's titanium heat exchangerhas many advantages and is widely used in all kinds of seafood farm-

ing, seawater heat exchange, salt water heat exchange, chemical industry,refrigeration, electroplating industry , 

central heating and other industriesand fields.