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Besides, the shell and tube heat exchanger is the only type that can be designed and operated at a temperature greater than 360 degrees centigrade, as well as in pressure higher than 30 bar. The wall reduction should not be less than 5% and should not be more than 8% of the tube wall thickness. Foshan Shunde Gimleo Heat Exchanger Co., Ltd. Anhui Yingchuang Laser Technology Co., Ltd. The heat exchanger still is a pressure vessel and all requirements for ASME pressure vessel does apply for heat exchanger as well. The API 510 Pressure Vessel Inspectors are qualified persons to perform shell and tube heat Exchanger inspection. TEMA standards describe these various components in detail. This type is made from 3 components as listed below: One fluid is in the tube side and the other one in the shell side. The title of ASME-PCC-2, which was first published in 2006, is: âRepair of Pressure Equipment and Piping.â. Shell and Tube Heat Exchanger Inspections are categorized in the following way: Shell and Structure in Heat Exchanger Inspection: Channel Cover in Heat Exchanger Inspection, Related Articles Boiler Inspection, Above Ground Storage Tank Inspection, Piping Inspection, Valve Inspection, Heater Inspections, Pressure Vessel Certification, Pressure Vessel RT Test, Pressure Vessel Dimension Inspection, ASME Impact Test Requirement, ASME Pressure Vessel Joint Efficiencies, Pressure Vessel Plate Material. Thermal expansion prevents a fixed head heat exchanger from exceeding this differential temperature. water jetting etc. Some of these Recommended Practices are API RP 572, API RP 577, and API RP 571, and also construction code sections might be used, such as ASME Code Section VIII and ASME Code Section IX. MAINTENANCE ENGINEER. Floating Head Exchangers. However, it would depend on our production line schedule and the complexity of the item. The materials can be stainless steel , hastelloy and carbon steel and so on . Weihai Borui Chemical Machinery Co., Ltd. china stainless steel tubes heat exchanger, heat exchange pipe manufacturers suppliers, tube heat exchanger structure heat exchanger. MUHAMMAD REHAN KHAN Intellectual Property Protection Fouling fluids can be handled because cleaning of tubes from inside and outside is possible. Note that the bundle can not be pulled from the front end. You may want to review shell and tube heat exchanger inspection procedure and related inspection and test plan. I MAINTENANCE ACTIVITY | JOB METHOD STATEMENT 1. All rights reserved. You may review pressure vessel inspection article for those requirements. AES/AET- These units are the most expensive of the removable bundle designed units.The floating head is internal to the shell. Another important diagram from the TEMA standards is actually a table that helps us classifying different types of shell and tube exchangers and correctly identifying their nomenclature. 1. The heat exchangers with expansion joints need to be inspected for: Flange inspections for corrosion and erosion, Inspection from internal surface for corrosion and erosion. No leakage is allowed. If you continue browsing the site, you agree to the use of cookies on this website. Neutralization is also required for shell material with admiralty brass to reduce the risk of SCC. The other API recommended practices and codes also have to be used in with this Code. The In-Service Inspection code for shell and tube heat exchangers is API STD 510. Please subscribe to my monthly newsletter so you don't miss a thing. See our User Agreement and Privacy Policy. 2. Floating head heat exchangers are suitable for heavy duties associated with high temperature and pressure and large temperature differences. Neutralization of Austenitic Stainless Steel shell, clads, liner or weld overlay, which contains H2S service. As of this date, Scribd will manage your SlideShare account and any content you may have on SlideShare, and Scribd's General Terms of Use and Privacy Policy will apply. The floating head can move, i.e. Scaffolding Construction on head … However, the CIF are also acceptable which decided by the clients. | Showroom Heat Exchanger Exchanger Manufacturer Customized PPR Shell Water-to-water Titanium Heat Exchanger For Boiler, Heat Exchanger Marine Cooler Marine Diesel Engine Heat Exchanger Sea Water Cooler. For repair, the requirement of API STD 510 or ASME-PCC-2 needs to be met. - | The tightness of stay bolts and spacers must be controlled. Looks like you’ve clipped this slide to already. In this type of construction straight tubes are fixed at both ends in stationary and floating tube sheets. The pressure gages calibration and range shall be controlled. The exchanger shown in this diagram is a floating head type shell & tube exchanger. See our Privacy Policy and User Agreement for details. | A heat exchanger is a devices used to transfer heat between mediums. _! There are different kinds of shell and tube heat exchangers with different applications.The reason for the high amount of applications is … Lazada, Browse Alphabetically: I MAINTENANCE ACTIVITY | JOB METHOD STATEMENT 1. The bubble will be developed if there was any welding defect such as crack, pinhole, etc. If you have legally registered patent, we can pack the goods in your branded boxes after getting your authorization letters. Shell side Hydrostatic Testing - After manufacturing completion, the heat exchange shell side will be subjected to the hydrostatic testing. These units are widely used in petrochemical plants and chemical industries. The test pump hose shall be disconnected, and no pressure drop is allowed. The different material and thickness can meet different working pressure. provides the possibility to expand in the axial direction. Onetouch 浙B2-20120091. Review following standard Inspection and Test Plan for Shell and Tube Heat Exchanger. This presentation is about maintenance procedure for floating head heat exchanger. How about your delivery time9 A: Generally, it will take 30 to 60 days after receiving your advance payment. Floating head designs solve problems associated with thermal stress. Slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. | Affiliate, Product Listing Policy Split back ring type; Pull through bundle type; Outside packed Lantern ring type; Outside packed stuffing box type; Split back ring type unit is more commonly used in industries. FLOATING HEAD Tube Rolling Inspection - The tube rolling shall be checked based on customer specification. Tubesheet Inspection - The Tubesheet shall be inspected before welding to the shell. A floating head is excellent for applications where the difference in temperature between the hot and cold fluid causes unacceptable stresses in the axial direction of the shell and tubes. 1688.com Other requirement is similar to the shell test. Thickness measurement and making corrosion rate and remaining life calculation, Girth flange inspection for corrosion and erosion, Internal surface inspection for corrosion and fouling, Dye penetration or magnetic particle examination of weld joints susceptible to cracking, Taking care in the pulling out of tube bundle to avoid any mechanical damage, Sampling from tube side fouling and corrosion products and making lab analysis and making interpretation by corrosion engineer (if necessary), Controlling of water jetting or lancing cleaning process, Controlling wire brushing process of inner tube edge and rolling area (preparation for ID measurement), Inside diameter measurement in tubes and tubes rolling areas, Rate off and accordingly plugging the tubes when their OD reaches to the ID plus one thickness, Retubing of tube bundle if more than 10% of tubes reach the above rejection limit, Inspection from tube bundle components such as tubesheet, tube, tie rods and spacers, transfer baffles or support plate, impingement baffle, floating head flange and floating head backing device, Inspection from internal surface of tubes for corrosion and fouling, Pulling out a sample tube for sectioning and corrosion anlaysis if necessary, Retubing when sectioning result proves the thickness is half of the nominal value, Visual inspection and dye penetration test from tube to tubesheet seal or strength weld, Inspection of gasket seating area, pass partition and nubbing for corrosion and deformation, Inspection of internal surface for fouling, corrosion and soundness of linings (if any), Balance hole inspection for corrosion and erosion, Welding joints inspection for any possible cracks, Reinforcement pad inspection and doing soap test if necessary, Cathodic protection anodes inspection and replacement if necessary, Diaphragm and division box visual inspection and dye penetration test of diaphragm for any possible cracks (for high pressure exchangers), shell and tube heat exchanger inspection procedure, Third Party Inspection for Shell and Tube Heat Exchanger, Inspection and Test Plan for Shell and Tube Heat Exchanger, inspection-for-industry.com
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