Titanium Heat Exchanger Selection Guide| 5 types +6 industries + price disassembly

Published by Engineering Team, Shaanxi Qianyi Tuoda Technology Co., Ltd on 2026-07-24

The equipment supervisor of a chlor-alkali enterprise in Shandong Province encountered corrosion problems, The original 316L stainless steel heat exchanger was used to cool wet chlorine containing 3000ppm chloride ions., Pitting and perforation occurred in only 3 months, Medium leakage causes contamination of production materials.After replacing titanium heat exchanger, the equipment has been running stably for two years, and the corrosion problem has been completely solved.When the chlorine ion content is greater than 2000ppm, accompanied by oxidation., crevice environment, 316L is easy to pitting and perforation.Titanium material has self-healing ability in passivation film containing oxychloride environment, No metal ion precipitation, Chlorine corrosion resistance, clean, Lightweight Multiple Advantages, Procurement costs are only one-third to one-fifth of those of Hastelloy, It's chlor-alkali., sea water desalination, Core heat exchange equipment in the field of hydrometallurgy.Among them, shell-and-tube fixed tubesheet products occupy more than 60% of the market orders for titanium heat exchangers.

Titanium heat exchanger mainstream divided into shell and tube, plate, spiral plate, coil, microchannel five major structures.shell and tube type containing fixed tube plate, U-shaped pipe, Floating head in many forms, Strong pressure bearing capacity, Can be designed and manufactured according to GB/T151 pressure vessel standard, The disadvantage is that the equipment is too largePlate type can be divided into removable, full welding, brazing type, high heat transfer coefficient, compact start and stop, but the upper limit of pressure is low;Spiral plate suitable for high viscosity, with solid particles medium, equipment cleaning difficult;Coil-tube type is mostly used for heat exchange in reactor tank, which has simple structure but limited heat exchange area.the micro-channel flow passage is small and has high heat exchange efficiency and is easy to be bloc, and that micro-channel flow passage is mainly used for ship and electronic low-flow working conditions.Selection reference: high pressure,<$20 ~350℃ wide temperature range, need mechanical cleaning tube shell type;Small space, medium clean priority plate;Solid particles in high viscosity zone of medium shall be spiral plate.

Shell-and-tube type and plate type need to be distinguished in actual selection.Shell-and-tube type higher pressure capacity, The maximum shell length can reach 4.0MPa, Equipment life up to 15‑20 years, Support mechanical cleaning of scale layers, Disadvantages Large equipmentPlate equipment occupies only one-third of the shell type, Higher heat transfer efficiency, However, the temperature limited by the gasket generally does not exceed 200℃, Service life: 5 - 10 years, lamella, Not suitable for media containing hard particles.Simple selection formula: high pressure, dirty medium, the pursuit of long life priority shell type;Pursue high efficiency compact, medium clean selection plate;Contain hard particles, easy to coke, must choose shell type.

chlor-alkali wet chlorine cooling, PTA Bromoacetic acid, sea water desalination, Power plant seawater cooling, Hydrometallurgical lithium cobalt nickel extraction, Medical food aseptic heat exchange is a typical application scenario of titanium heat exchanger.Material matching, TA2 titanium heat exchange tubes are preferred for heat exchange tubes under normal conditions, Strong reducing acid crevice corrosion condition upgrade TA10TA2 heavy plate forgings shall be selected for tubesheet, and TA10 shall be replaced under severe corrosion conditions;If the medium corrosion is weak, carbon steel shell can be used.titanium pipeThe combination of beam and titanium steel composite tube plate can reduce the investment by 30‑40%,The contact position between carbon steel and titanium must be insulated to avoid galvanic corrosion.;Strong corrosion of shell side medium requires an overall titanium structure.

Titanium heat exchanger cost from titanium body, Tube sheet forgings or clad plates, Machining and pipe welding, flaw detection and pressure test, Flange gasket accessories together.Market reference: DN500, 20m2, TA2 material PN1.6 shell-and-tube equipment is about RMB 16 ‑ 20, 000 Yuan, 50m2 specification is about RMB 25 ‑ 35, 000 Yuan, 100m2 specification is about RMB 35 ‑5, 000 Yuan;20㎡ detachable plate titanium heat exchanger gasket, Effect of plate configuration, Price range: RMB 50 - 150, 000 Yuan, Quotations are mostly bare metal prices, flange, gasket, Pressure testing requires additional accounting.

Selection requires five key parameters, Heat transfer area is calculated inversely by heat load formula, Note that titanium thermal conductivity is low and needs to be correctedDetermining the Diameter and Wall Thickness of Heat Exchange Tubes, Φ19×0.8mm thin-walled high efficiency pipe, Φ25×1.0mm standard tubeCalculate pipe length, pipe number and pipe matching circulation capacity;Clarify the design pressure and temperature of tube side and shell side;Calculate tube sheet thickness, Fixed tubesheet heat exchangers with temperature difference greater than 50℃ need to be equipped with expansion joints, The pipe head is preferably welded with strength and expanded, Reduce crevice corrosion.

There are five major risks to avoid in manufacturing., Heat Concentration in Titanium Thin-walled Tube Welding, Argon protection inside the pipe is required with external towing coverIt is not recommended to simply expand the joint, but to give priority to strength welding + sticking expansion to eliminate the gap;Thick tubesheet welding deformation, using split welding with annealing;plate-typeTitanium PlateStamping springback is large, and it is difficult to control the ripple accuracy.Insulation shall be provided between carbon steel shell and titanium parts.Common hidden danger in procurement is mixed use for brands., Nominal TA2 Actual Use TA1, Purchase needs to check furnace lot warranty, Spectral testing is done if necessary to verify the material.

Based in Baoji China titanium valley manufacturers can provide a variety of structure titanium heat exchanger customization, Design according to GB/T151 pressure vessel standard, Water pressure can be completed, permeate, full set radiographic inspection, Engineers can combine media, temperature, pressure, The heat exchange area gives the adaptation scheme.

titanium pipePart welding and procurement pit-avoidance guidelines

titanium barBrand selection and machining technology

Full Analysis of Titanium Reactor Structure Selection

frequently asked questions

Q: When should I choose titanium heat exchangers? Medium chloride ion greater than 2000ppm, There is oxidation crevice corrosion, 316 stainless steel is easy to pitting and perforation, such as chlor-alkali wet chlorine cool, sea water desalination, Hydrometallurgical extraction conditions, Titanium heat exchangers are preferred.

Q: How to choose between shell and plate? A: high pressure, medium containing particles easy to coke tube shell type;Limited space, medium clean pursuit of heat transfer efficiency plate selection.

Q: How can the shell be reduced? A: Shell pass steam, clean water weak corrosive medium, carbon steel shell +titanium pipeBeam + titanium composite tube plate, be sure to do well in insulation, prevent galvanic corrosion.

disclaimer

This article selection ideas, Price range is based on industry project experience, For technical reference only, Not as engineering design, Direct basis for purchasing contract.Pressure Vessel Equipment Selection, design, manufacture, Be sure to have qualified engineers and technicians combined with site conditions, GB/T151 and other current national standards to carry out evaluation.