Wit­hout excep­ti­on, all exhaust gas heat exch­an­gers from Rosink-Werk­stät­ten ful­fil the hig­hest qua­li­ty requi­re­ments. They are used in various muni­ci­pal and indus­tri­al tasks to ensu­re envi­ron­men­tal­ly fri­end­ly and cost-saving heat reco­very. As a spe­cia­list in exhaust gas heat exch­an­gers like the fin­ned tubes heat exch­an­ger, Rosink-Werk­stät­ten can rely on years of expe­ri­ence and gre­at expertise.

Con­ti­nuous main­ten­an­ce and pre­ven­ti­ve inspec­tions avo­id unplan­ned shut­downs and ensu­re pro­per func­tio­ning of exhaust gas heat exch­an­gers over many years. An exten­si­ve spa­re parts warehouse ensu­res fast avai­la­bi­li­ty of exch­an­geable parts and gua­ran­tees plan­ning secu­ri­ty. Rosink-Werk­stät­ten views the lea­ding mar­ket posi­ti­on as an incen­ti­ve to con­stant­ly impro­ve and to incor­po­ra­te cus­to­mer sug­ges­ti­ons in the deve­lo­p­ment of heat exchangers.

For many indus­tri­al pro­ces­ses the avai­la­bi­li­ty of steam plays a major role. The multi­tu­de of steam gene­ra­tors appli­ed in the dif­fe­rent per­for­mance clas­ses of lea­ding manu­fac­tu­r­ers pro­ve this. But even the exhaust gas of modern steam boi­lers still con­ta­ins a lot of ener­gy that can be used. This is whe­re Rosink-Werk­stät­ten Eco­no­mi­se­rs are appli­ed. As feed water pre-hea­ter they sup­p­ly the boi­ler with pre-hea­ted water. As a result the effi­ci­en­cy of the plant can be increased by approx. 5–7 per­cent. Espe­ci­al­ly for older exis­ting plants retro­fit­ting amor­ti­zes in shor­test time. Also for pro­ble­ma­tic instal­la­ti­on situa­tions we can near­ly always offer you a solution.

Ope­ra­ting mode

Eco­no­mi­se­rs are heat exch­an­gers with exhaust gas on the one side and water on the other side. Eco­no­mi­ser must be desi­gned for the exhaust gas quan­ti­ty, its tem­pe­ra­tu­re, the maxi­mum allo­wa­ble pres­su­re drop, the used fuels as well as for the ener­gy quan­ti­ty to be reco­ver­ed. A heat exch­an­ger desi­gned for gas-firing is likely to suf­fer clog­ging if instal­led down­stream of a coal-fired boi­ler and will be sub­ject to an increased risk of cor­ro­si­on if used in con­junc­tion with oil-firing.Economisers can be desi­gned so as to keep the flue gases abo­ve the con­den­sa­ti­on tem­pe­ra­tu­re, others are manu­fac­tu­red from cor­ro­si­on resistant mate­ri­als in order to resist the exhaust gas condensate.

Exhaust Gas Condenser

The basic dif­fe­rence bet­ween an eco­no­mi­zer and a flue gas con­den­ser is the fact that an eco­no­mi­zer gene­ral­ly heats a smal­ler quan­ti­ty of water to high tem­pe­ra­tures. The con­den­ser can ope­ra­te even more effi­ci­ent becau­se it still cools down a low flue gas tem­pe­ra­tu­re and ther­eby can uti­li­ze also the latent heat of the flue gas condensate.

Howe­ver, the key to a suc­cessful appli­ca­ti­on of heat reco­very is to make use of this ener­gy. The­re is a wide ran­ge of pos­si­ble applications:

Hea­ting of pro­cess water for indus­tri­al use, laun­d­ries, bre­we­ries, hos­pi­tals, green hou­ses, dis­trict hea­ting, space hea­ting, de-icing, … this list could be con­tin­ued endlessly.

The savings poten­ti­al results from the cur­rent flue gas tem­pe­ra­tu­re, the requi­red quan­ti­ty of pro­cess water and the ope­ra­ting hours.

Was­te water heat exch­an­gers are main­ly used for heat scal­ding tubs. They use the ther­mal ener­gy con­tai­ned in the was­te­wa­ter. The was­te water heat exch­an­gers from Rosink-Werk­stät­ten have the neces­sa­ry robust­ness and com­pact­ness for this form of heat recovery.

Rosin­k’s expe­ri­en­ced team can assist cus­to­mers with the iden­ti­fi­ca­ti­on of opti­miza­ti­on poten­ti­al, the deve­lo­p­ment of moder­niza­ti­on con­cepts and the rec­ti­fi­ca­ti­on of exis­ting defi­ci­ts. The goal is the long-term saving of cos­ts and the pro­tec­tion of resources.