Immersion Heat Exchanger Coil Conenser Boiler hermosyphon Reboiler 34 HEA EXCHANGERS he overall heat transfer co-efficient of Borosilicate glass equipment is comparatively favourable with many alternative materials because of its smooth surface which improves the thermal coefficient & reuce the tenency of fouling. Heat Exchangers are available in basics esigns: 1. Conventional Coil ype Conensers.. Shell & ube ype.
HEA EXCHANGERS SHE AND UBE HEA EXCHANGERS R INRODUCION Shell & tube heat exchangers offer large surface area in combination with efficient heat transfer an compactness. hese are wiely use in inustries for various uties like cooling, heating, conensation, evaporation etc. GOE are the pioneers in the fiel of glass shell an tube heat exchangers in Inia an their prouct has a wie market acceptability. SAIEN FEAURES 1. Universal corrosion resistance an excellent alternative to expensive MOCs like graphite, hastelloy, copper titanium, tantalum an other exotic metals.. Excellent heat transfer as fouling oes not occur on smooth glass surfaces. 3. Flexibility of installation vertical / horizontal. 4. Easy replacement of tubes for repair an cleaning. 5. Available in wie range of HAs. 6. Ease of installation ue to light weight. 7. Economical. 8. Suitable for applications where large HAs are require in limite space. ADVANAGES OVER CONVENIONA COI YPE HEA EXCHANGERS (1) he overall heat transfer coefficient in shell an tube heat exchanger is about 3 times higher than in coil type heat exchanger. () he pressure rop in shell an tube heat exchanger is minimal compare to -3 kg/cm in coil sie of coil type heat exchanger. (3) For requirement of higher heat transfer areas shell an tube heat exchanger is the only alternative. CONSRUCION FEAURES he glass tubes are seale iniviually into PFE tube sheet with special PFE sockets an packing. his unique ferrule type sealing arrangement permits easy replacement an cleaning of tubes. Baffles on shell sie ensure improve heat transfer by increase turbulance. Further etails of construction can be seen in the iagram. HEADER SOCKE UBE SHEE PACKING GASS UBE IE ROD BAFFES SHE Material Of Construction Moel Shell ube Heaer Duty YPE hree basic versions * are available : RGG Glass Glass Glass For heat transfer between two agressive meia. RGM Glass Glass Steel/ FRP For heat transfer between agressive meia in shell & nonaggressive meia in tubes. RMG Steel/FRP Glass Glass For heat transfer between non-aggressive meia in shell. aggressive meia in tubes & NEW: Also Available with Graphite ube * GOE provies assistance to clients for selecting the right moel for specific uty. 35
HEA EXCHANGERS DIMENSIONA SPECIFICAIONS Cat. Ref. RGG/RMG 6/3 6/4 6/5 6/6 9/6 9/8 9/10 9/1 1/1 1/16 1/1 1/5 Area (m ) 3 4 5 6 6 8 10 1 1 16 1 5 150 5 300 80 100 150 50 80 80 3 5 40 40 4 50 50 50 175 50 300 H 150 00 50 500 3100 3700 4300 60 30 380 450 550 3150 3950 4550 1 1900 500 3100 3700 1900 500 3100 3800 1800 400 300 3800 150 150 150 150 5 5 5 5 5 5 5 5 3 1600 00 800 3400 1450 050 650 3350 1350 1950 750 3350 4 50 50 50 50 300 300 300 300 300 300 300 300 5 15 15 15 15 175 175 175 175 175 175 175 175 6 1980 580 3180 3780 000 600 300 3900 1930 530 3330 3930 50 60 75 No. of ubes 37 73 151 No. of Baffles 11 15 19 3 7 9 13 17 5 7 9 11 H 3 4 RGG 1 3 4 4 3 H 6 UBE BUNDE H 3 4 RMG 1 3 4 4 3 H 36
HEA EXCHANGERS RANGE OF APPICAIONS R 0 0 Permissible temperature range for both shell & tube sies - 40 C to 150 C 0 Maximum permissible temperature ifference between shell & tube sies 10 C All sizes & moels are suitable for full vacuum on both sie. Maximum limiting pressures are tabulate herebelow : Maximum Permissible Pressure Range, Kg/cm (g) Moel Sie 150 5 300 RGG Shell.0 1.0 1.0 ube.0 1.0 1.0 RGM Shell.0 1.0 1.0 Ube 3.5 3.5 3.5 RMG Shell 3.5 3.5 3.5 ube.0 1.0 1.0 he above ranges of application are amissible limiting values. For each specific case GOE recommens the amissible operating ata base on the relations between pressure an temperature, size an moel. PERFORMANCE & DESIGN DAA 600 Cooling Water he particular avantage of shell & tube heat exchanger is high heat transfer performance. he relation between heat transfer an velocity of flow can be easily seen in the iagram. On receipt of the operating ata from client the most favourable shell an tube heat exchanger is selecte. his accurate esign combine with most reliable quality assurance ensure economy an operational reliability for the user. For approximate sizing some typical heat transfer coefficients are given here below : K Value in W / M K 500 400 300 Cooling Brine 00 U-Values Meia use kcal/m hr k W/m k 300 Steam water Conensation 350-550 410-640 Water-Water Cooling 50-350 90-410 100 0 0 0.5 1.0 1.5.0.5 Coolant Velocity in M/Sec. Water-air Cooling 30-60 35-70 37
HEA EXCHANGERS CONDENSERS Conensers are use for conensation of vapours an cooling of liquis. Conensers are mae by fusing number of parallel coils in a glass shell. Coils are mae in ifferent iameters using tubes of ifferent bores. he average co-efficient of heat transfer in coil conenser is consiere as- o Conensation 00-70 Kcal/m,hr, C appx. o Cooling 100-150 Kcal/m,hr, C appx. YPE-A 1 YPE-B 1 Free Max. Actual Cross Coolant Jacket Cat. / H..A. Area Rate Cap. Ref. 1 ype m Cm Kg/hr. itre HE3/3.5* 80 16 600 75 A 0.35 5 1300 HE4/5* 100 19 600 75 A 0.50 30 400 4 HE4/6 100 19 750 100 A 0.60 30 400 6 HE6/10 150 5 600 100 B 1.00 5 600 9 HE6/15* 150 5 850 100 B 1.50 5 600 11 HE9/5* 5 5 800 110 B.50 15 3300 18 HE1/5 300 5 600 15 B.50 175 5700 5 HE1/40* 300 5 900 15 B 4.00 175 5700 35 HE16/40 400 5 600 15 B 4.00 450 600 60 HE16/50 400 5 700 15 B 5.00 450 600 70 HE18/60 450 40 750 150 C 6.00 80 4800 100 HE18/80 450 40 900 150 C 8.00 80 600 110 HE4/10 600 50 150 300 C 1.00 150 600 65 1 YPE-C 1 Precautions to be taken in use of conensers - Vapours shoul be passe through shell only. - Maximum pressure of coolant shoul be.7 bars. - Aequate flow of coolant shoul be use. - Steam shoul not be use in coils. - Coolant shoul not be heate to boiling point. - Coolant control valve shoul be turne slowly. - Coolant shoul be allowe to rain freely. - Brine can be use in coils in a close circuit. - Water main shoul be connecte with flexible hose. - Ensure no freezing of water remaining in the coils. - Conensers shoul be mounte vertically only. - Conensers can be mounte in series to provie larger surface area. MEHODS OF USE Vapours from bottom his metho is simple to install over a reactor. However this results in conensate returning substantially at its conensing temperature. In this metho care must be taken that conensate is not excessive that it can lea to "logging" the coils an create back pressure in the system. Generally a reflux ivier is use below the conenser to take out the istillate. Vapour Vapour Vapours from top his metho prouce a cool conensate using the entire cooling surface area. his metho shoul be use where the conensate can lea to "logging" of coils. Conensate 38 * marke items are available fast.
HEA EXCHANGERS R BOIERS Boilers are use for vaporization of liquis by passing the steam in the coils. Boilers are mae by fusing number of parallel coils in a glass shell. In Boilers, coils are esigne to provie bigger cross section in the shell sie as compare to conensers. o he average heat transfer in Boilers is consiere as 350 Kcal/m,hr, C at a steam pressure of 3.5 bar. 1 Free Actual Cross Jacket Cat. H..A. Area Cap. Ref. 1 ype m Cm itre HEB4 100 5 5 375 100 A 0.15 40 HEB4/4 100 100 5 400 100 B 0.15 40 3 HEB6 150 40 5 450 100 A 0.35 50 5 HEB6/6 150 150 5 500 100 B 0.35 50 7 HEB9 5 40 5 700 100 A 1.00 150 16 HEB9/9 5 5 5 700 100 B 1.00 180 0 HEB1/1 300 300 5 700 15 B 1.30 330 40 HEB - YPE-A 1 HEB - YPE-B Notes on use of Boilers : - Steam shoul be passe in the coils at a maximum pressure of 3.5 bar which is O equalant to a temperature of 147 C. O - For higher temperature (maximum upto 00 C) heat transfer fluis can be passe in the coils. - Col liquis - Col liquis shoul be preheate for better results. - Boilers shoul bemounte in an external circulatory loop (as shown in figure) an not irect at the bottom of flask or column - Uner certain circumstances, boilers can be mounte in series to provie larger heat transfer area. ANGED HOSE CONNECOR ASSEMBIES Metal / Plastic angle hose connector assemblies are available to connect the flexible hose to the conensers. hese are provie with a mating flange, a rubber gasket an nut bolts. Cat.Ref. PMC1 5 70 IMMERSIONS Immersion heat exchangers are use to control exothermic reaction in glass vessels. hey can be use with vessels having wier bottom outlet (type VSR an VSE). hese are provie with a central hole through the coil battery so that a special, extene type, stirrer can be fitte which extens to the bottom of heat exchanger an provie through action. 1 In most applications, cooling water is use in coils (max. pressure.7 bar g.), but they can also be use with steam (max. pressure 3.5 bar g.). In latter case the coils must be completely immerse in liqui. Immersions are not recommene for use with proucts which have a tenency to crystalise. Cat. Ref. 1 m Actual H..A. HEM HEM6 150 40 5 00 00 75 145 0.4 HEM9 5 40 5 300 00 75 00 0.6 39
HEA EXCHANGERS PRODUC COOERS Prouct coolers are use for cooling of liquis, typically, for the cooling of istillates from the istillation columns. Unlike coil conensers, in prouct coolers, prouct travels through the coil battery an coolant through shell. his provies more resient time to the prouct to be coole. For irect connection with istillate lines, all the prouct coolers are provie with 5 connections. Actual Cat.Ref. HA m ype HEF1/1* 50 5 1 450 0.1 A HEF1/* 50 5 1 600 0. A HEF1/3.5* 80 5 16 600 0.35 A HEF1/5* 100 5 19 600 0.5 A HEF HEF HEF1/10 150 5 5 600 0.7 B HEF1/15 150 5 5 850 1.5 B YPE - A YPE - B 40