SB Series Brazed Plate Heat Exchanger Installation Manual
Contents
1. Heat Transfer SB Series Brazed Plate Heat Exchanger Installation Manual Heat Transfer Exploded view of Schmidt SB Brazed Plate Heat Exchanger WARNING Before proceeding with installation and operation read entire manual carefully Failure to do so can cause injury or property damage Page 2 Table of Contents Product Information evn n 4 Brewer 4 Thermal Efficlenoy eet eite nee E t reno 4 COMmoSlION Free Bia 4 LOW acre E 4 COMMON AD DIICAU ON S seni 4 Technical Data Dimensions eese 5 Installation GUINE oiu areis ee daten et x e ea e ala Raw 6 MOUNTING POSITIONS srl 6 PIPING CONNECTIONS TET 7 Typical Piping Configurations 8 soldering and Welding Connections 9 MallitenaliCc8 esee uiuo dex ess veveu culus auae UNO Dux Co Pa a o dup NOE 10 Start Up and Shut Down Procedures 10 tart UD VEMUNG eso ust E 10 xv NUL DOWN r 10 Fo ling and Cleaning ssa eau dn dee E tint Ue decl late aeos 10 COFTOSIOTI RESISTANCE 10 Application Submittal Form 1 crecer eese e ee nean nnn 11 Page 3 Heat Transfer Product Information Description API Schmidt Bretten SB brazed plate heat exchangers are designed with up to 150 plates embossed plates of corrosion resistant stainless steel The plates are brazed toge2. remove oxide N Apply the flux to the surface with a brush to remove and prevent oxidation 3 For refrigerant applications use dry nitrogen gas on the refrigerant side 4 Heatthe soldering area to the soldering temperature about 1 200 F Temperatures above this can melt the SB brazing materials and result in damage 5 Keep the tube in a fixed position and apply the filler material Welding NO Prepare the edge of the tube for welding with a 30 angle Place the piping into the connection 3 TIG or MIG weld the tube into the connection filling the groove formed by the two edges This method minimizes the heat zone Page 9 Heat Transfer Maintenance Start Up and Shut Down Procedures e Start Up Venting During the filling process the unit must be vented to eliminate any trapped air This will assure proper performance and longevity of the unit Shut Down The two sides should be shut down slowly and simultaneously If this is not possible the hot side should be shut down first If the unit is shut down for an extended period of time it must be drained and cleaned This is especially true if there is a risk of frost or if there is the presence of any aggressive media inside the heat exchanger Fouling and Cleaning Different factors may effect fouling such as fluid velocity turbulence flow distribution surface finish and water quality Proper maintenance and adequate water treatment can help reduce f
3. scale from minerals precipitating out of solution Common Applications Steam heating of process liquids Steam to water heating for district heating and other HVAC applications Heat recovery due to the close approach capability between the fluids Industrial process cooling or heating of fluids and gases Refrigerant gas evaporating or condensing Hydraulic oil cooling can be designed to use less cooling water Lube oil cooling of machinery Page 4 Technical Data Dimensions API Model Type Number of Plate Flow Empty A B C D E Plates sq ft gpm Ibs SB1 SBN1 2 07 8 00 1 57 6 69 0 3 0 09N 40 0 15 20 1 54 0 11N SB2 SBN2 3 50 9 06 1 69 7 19 0 47 0 09N 50 0 193 50 2 42 0 13N SB22 SBN22 3 50 12 80 1 69 10 98 0 47 0 09N 100 0 274 50 3 14 0 18N SB24 SBN24 3 50 18 15 1 69 16 34 0 47 0 09N 60 0 366 50 4 20 0 31N SB3 SBN3 4 88 6 73 2 88 4 72 0 51 0 09N 100 0 193 19 2 64 0 13N SB4 SBN4 4 88 13 07 2 88 11 06 0 51 0 09N 110 0 377 19 3 52 0 29N SBD4 4 88 13 07 2 88 11 06 0 51 0 094N 110 0 377 19 3 52 0 37N SB5 SBN5 4 88 20 83 2 88 18 81 0 51 0 094N 130 0 634 19 4 41 0 53N SBD5 4 88 20 83 2 88 18 81 0 51 0 094N 130 0 634 19 4 41 0 59N SB7 SBN7 10 59 20 83 7 88 18 11 0 53 0 095N 200 1 453 175 21 2 1 2N SB8 SBE8 10 59 20 83 6 34 16 57 0 53 0 095N 200 1 4 282 22 1 1 2N SB9 SBE9 10 59 31 42 6 34 27 17 0 53 0 095N 300 2 15 300 25 4 1 8N SB10 S
4. BE10 15 08 34 25 9 33 28 46 0 91 0 095N 300 3 23 850 87 1 2 8N Dimensions Max Surface per Max Weight API Model Type Number of Plate Flow Empty E Plates sq m mih Kg 7 0 2 3N 40 0 014 20 0 7 0 05N 12 0 2 3N 50 0 018 50 1 1 0 06N 12 0 2 3N 100 0 025 50 1 3 0 08N 12 0 2 3N 60 0 034 50 2 04 0 14N 13 0 2 3N 100 0 018 19 1 2 0 06N 13 0 2 3N 110 0 035 19 1 6 0 13N 13 0 2 4N 110 0 035 19 1 6 0 17N 13 0 2 4N 130 0 059 19 2 0 0 24N 13 0 2 4N 130 0 059 19 2 0 0 27N 13 0 2 4N 200 0 135 175 9 6 0 54N 13 0 2 4N 200 0 13 282 10 0 0 54N 13 5 2 4N 300 0 2 300 11 5 0 8N 23 2 4N 300 0 3 850 39 5 1 25N Page 5 Heat Transfer Installation Guide API Schmidt Bretten Heat Exchangers should be installed so that there is sufficient space around each unit to perform maintenance Mounting Positions Refrigeration Applications The refrigerant side is indicated by a BLUE label In evaporating and condensing applications install the heat exchanger in a vertical position to optimize it s performance Heating Applications The primary side is indicated by a RED label For heating applications the heat exchanger can be mounted in any position However for any position other than vertical a loss in performance is possible O O O O Red Blue Label gt Label 9 O O O O Recommended Position for Refrigerant Applications Blue Label e Page 6 Bracket Mounting and Vibration Isolation It is prefer
5. Exchangers 2777 Walden Avenue Buffalo New York 14225 716 684 6700 Fax 716 684 2129 API Schmidt Bretten Americas Plate Heat Exchangers and Thermal Systems 2777 Walden Avenue Buffalo New York 14225 716 684 6700 Fax 716 684 2129 API Schmidt Bretten GmbH amp Co KG ISO 9001 Certified Plate Heat Exchangers and Thermal Systems Langenmorgen 4 D 75015 Bretten Germany 49 725253 0 Fax 49 725253 200 API Heat Transfer Suzhou Co Ltd Air Cooled Aluminum Heat Exchangers Shell amp Tube Heat Exchangers Plate Heat Exchangers 156 Qingqiu Street 3rd District Suzhou Industrial Park Suzhou Jiangsu 215126 China 86 512 88168000 Fax 86 512 88168003 Contact your local API Sales Representative or API Heat Transfer directly toll free 1 877 API HEAT e mail sales aptheattransfer com Form SBCBE 8 07 Other Products Available from API Heat Transfer Brazed Plate Heat Exchangers Off the shelf standard units reflects the latest in plate heat exchanger technology for maximum performance and low cost Ideal for OEM or aftermarket applications Many Models stocked and ready to ship Models for process or refrigeration applications Hubbed Shell and Tube Heat Exchangers Straight or U tube fixed or removable tubesheet general purpose exchangers designed to cool oil water compressed air and other industrial fluids A variety of port configurations and materials are available Diameters f
6. able for the heat exchanger to be supported by a bracket or mounted onto a console Do not support the unit by the fittings All items should be supported independently Transmitted vibrations and pulsations should be minimized by installing a vibration isolator in the fluid lines and by installing a rubber buffer pad between the heat exchanger and its mounting surface WARNING The heat exchanger may have sharp edges Exercise caution when handling Piping Connections Connections to the heat exchanger are identified by a color label Red Label primary side in heating systems hot inlet outlet Blue Label primary side in refrigeration applications refrigerant inlet outlet Counter Flow Piping Standard heating connections are NPT threaded Standard refrigerant connections are ODF Red solder ports Label All connections are on the front side except for two circuit refrigerant designs where water connections are on the back side Optional Connections Brazed plate heat exchangers can be supplied with sets of unions brass unions with external thread or inner solder steel unions for welding Page Heat Transfer Typical Piping Configurations Primary Secondary Inlet Heating Application QUASI The primary side liquid gas enters at the top of the left side as indicated by Red the red label and exits at the bottom Label To acheive optimum performance pipe the secondary circuit in counter flow with the li
7. many as 150 pattern embossed stainless steel plates The plates are brazed together with every other plate turned 180 to create flow channels with two mediums in counter current direction The design of the plates creates a high fluid turbulence resulting in outstanding heat transfer rates The result is a highly efficient heat exchanger that utilizes all of the material in the heat transfer process Materials of Construction milicie ne eee ee AISI316L Stainless Steel Brazing Materials Copper 99 9 pure or Nickel optional Connections Stainless Steel Operating Conditions Max Working Pressure 450 psi for Copper 380 psi for Nickel Max Working Temperature 365 F Minimum Working Temperature 148 F PRODUCT SELECTION DATA Side One Side Two Medium Water Glycol Oil etc Concentration Percent State of Fluid Vapor or Liquid Degrees F Inlet Temp Degrees F Outlet Temp Degrees F Mass Flow Rate gpm Max Pressure Drop psi Total Heat Transfer BTUH Page 11 Heat Transfer API Heat Transfer Inc 2711 Walden Avenue Buffalo New York 14225 716 684 6700 www apiheattransfer com Divisions API Airtech SO 900 Certified Air Cooled Aluminum Heat Exchangers 91 North Street PO Box 68 Arcade New York 14009 0068 b85 496 5755 Fax b85 496 5776 API Basco SO 9001 Certified Basco Whitlock Shell amp Tube Heat
8. ncy brazed aluminum coolers for cooling a wide variety of liquids and gases with ambient air Lightweight yet rugged Capable of cooling multiple fluids in single unit Models can be supplied with cooling fan and a variety of drives Printed in USA
9. ouling Properly sized strainers should be installed where particles are known to exist Strainers with a mesh size of 16 20 will retain any particles over 0 04 in size In installations where high calcium hardness or fluid contamination is expected the heat exchanger should be cleaned periodically by flushing back flushing and cleaning the strainers Following are descriptions for two types of fouling Scaling Deposits of calcium on the heat transfer surface This effect increases with temperatures higher than 140 F concentration and pH level Assuring a turbulent flow and lower temperature can help reduce this effect Particulate Solids in suspension in the heat transfer media Particulate fouling can be influenced by velocity and media flow roughness of the surface and physical size of the particles Corrosion Resistance Corrosion is a complex process influenced by a number of factors The chart and table below show the resistance of AISI 316 Stainless Steel and Copper against the most common chemicals Iron 1 5 ppm Free Carbon Acid 20 ppm Mangan lt 05 ppm Ammonia 2ppm Sulfate 50 ppm Nitrate 100 ppm Sulphide 0 ppm pH Value 6 9 Chlorides See Below Maximum Chloride content by temperature 10 000 1 000 Acceptable below this PPM 0 1 TANA 0 F CF 122 F 167 F 212 F Application Submittal Form Product Description API Schmidt Bretten brazed plate heat exchangers consist of as
10. quid entering at the bottom and leaving at the top of the heat Primary Secondary exchanger Outlet Inlet Series Connections Primary Secondary Thermal length is a term that refers to niel Outlet the addition of heat transfer surface while preserving the internal fluid velocity to maximize the effective heat Red transfer rate Label Red Label Primary Secondary Outlet Inlet Page 8 Refrigerant Condenser The refrigerant gas enters at the top and the condensate liquid exits at the bottom To acheive optimum performance pipe the water circuit in counter flow with the water entering at the bottom and leaving at the top of the heat exchanger Refrigerant Evaporator The refrigerant liquid gas mixture enters at the bottom on the left side as indicated by the blue label and exits at the top as a vapor Condenser Refrigerant Water Inlet Outlet Blue Label Refrigerant Water Outlet Inlet Evaporator Refrigerant Water Blue Label Refrigerant Water Inlet Outlet Soldering and Welding Connections Soldering The temperature of the brazing or welding process must not exceed the melting point of the internal brazing material Use a wet towel around the connection and the plate pack to reduce the amount of heat transmitted to the pack during installation 1 Clean the soldering assembly surface at the copper tube and heat exchanger connections Remove oil or other buildup with a degreasing agent Polish the surfaces to
11. rom 3 7 62 cm to 12 30 48 cm OptiDesign Straight tube removable bundle exchangers made from standard components Floating tube sheet for seal leak detection and easy maintenance Diameters from 3 7 62 cm to 42 106 68 cm ASME API TEMA ABS and other codes available Extended Surface Unique patented plate fin design for centrifugal or axial compressor intercooler and aftercooler applications and minimal pressure loss Design eliminates separators ASME code design is standard Diameters from 20 50 8 cm to 120 304 8 cm 2007 API Heat Transfer SIGMAWIG Welded Plate Heat Exchangers i gt A Ce Fully welded and require no gaskets Available in all 316SS construction titanium and other higher alloy materials These units have a design temperature of 750 F and can handle operating pressures as high as 360 psi with an ASME Code stamp Utilizing the SIGMASTAR plate this evaporator system is designed to remove water or other solvents while concentrating solutions SIGMASTAR Systems can be pre assembled and pre tested prior to shipment for quick and easy start up TEMA Shell and Tube A wide variety of TEMA types are available using pre engineered or custom designs in various sizes and materials Shell diameters from 6 15 24 cm to 60 152 4 cm ASME TEMA API ABS TUV PED and other code constructions available Air Cooled Heat Exchangers High efficie
12. ther with every other plate inverted to create contact points between all of the plates When these points are vacuum brazed together a compact and pressure resistant heat exchanger is formed in which virtually all the material is utilized for heat transfer Thermal Efficiency The flow pattern produces very high fluid turbulence to increase the effective heat transfer rate The fluids are in true counter current flow resulting in the largest possible temperature difference between the fluids and superior heat transfer rates across the stainless steel plates Counter current flow also allows very close approach temperatures between the two circuits A fluid can be cooled or heated to within just a few degrees of the other fluid There is no outer shell as in traditional shell and tube equipment so virtually the entire heat exchanger is heat transfer surface This results in extraordinary thermal and economic efficiency Corrosion Free Duty The plates and nozzles are made of stainless steel known for very high corrosion resistance It is the same material used in sanitary food processing and medical applications The plates are high vacuum induction brazed with 99 9 pure copper This produces high strength and very low corrosion potential Low Fouling The SB brazed plate heat exchanger operates with high fluid turbulence which exhibits a scouring action as it impinges against the heat transfer plates Turbulence inhibits the production of
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