Every 20C heat recovered from Flue Gases translates to ~1% improvement in Boiler efficiency.
For flue gases with SOx and/or sooty, particulate material
Conventional heat exchangers suffer from cold spot and SOx condensation corrosion due to cold spots. Also, sooty flue gases offer challenges with respect to cleaning and maintenance in conventional exchangers.
HPHE operates at isothermal conditions and hence does not suffer from cold spot formation. Flue gases can be cooled close to the condensation temperature allowing higher heat recovery. Automated or manual in-situ cleaning of HPHE makes it an ideal exchanger for sooty flue gases.
This study focuses on a boiler producing 6 t/h saturated steam at 10 bars. Two fuel cases have been considered for this study, Briquettes and Natural Gas.
Briquette fired boiler
The flue gases will contain a high amount of particulate/soot. The evaporator section of the HPHE for this case has non finned smooth heat pipes and is fitted with an Ultra-Sonic soot blower.
The graph on the right shows the Cost Saved per year and HPHE CAPEX for 60, 80, 100, 120 �°C heat recovered from flue gases, assuming the flue gas exits the boiler at 200�°C.
Savings is calculated based cost of steam @ Rs 2.3/kg
Savings is calculated based cost of steam @ Rs 4.2/kg
Natural Gas fired boiler
The HPHE for this case will have fins in the evaporator section to improve the overall heat transfer. In case there is SOx in the flue gas, the gases can be cooled to a temperature close to the dew point at the stack exit.
The graph on the left shows the Cost Saved per year and HPHE CAPEX for 60, 80, 100, 120 �°C heat recovered from flue gases, assuming the flue gas exits the boiler at 200�°C.
The shown Savings and CAPEX figures are estimated values. Connect with us to find our the exact cost savings and HPHE CAPEX for your project.
Air to water heat pipe heat exchanger is mainly to heat water using the hot air from heat recovery, it can be used for domestic water, water for boilers or production process. The exchanger is constructed using a partition in the middle to separate the exchanger, both sides are independently sealed. A single heat pipe can be replaced. While working the hot air flows from one side to the other side, the heat pipe absorbs heat. Meanwhile, cold water flows from the reverse side, the heat pipe releases heat, thus heating the cold water from the reverse side. The outlet temperature is not lower than dew temperature.
Field of application
-feed drying
-cereals and oil processing
-chemical industry
Specification
Advantage:
-high heat recovery efficiency
-seldom temperature difference, fast heat starting, good isothermal
-the speciality of the heat pipe results in a high wall temperature, exhaust gas temperature can be reduced without reaching the acid dew point, avoid the corrosion of the equipment.
A double pipe heat exchanger is a sort of heat exchanger which includes concentric pipes parted through a mechanical closure. The name of this heat exchanger indicates that it makes use of pipes to exchange heat among fluids. One pipe has hot fluid whilst the opposite pipe has cold fluid. These two fluids do not mix with each other as they are separated by pipes. This heat exchanger is likewise known as a jacketed u-tube, jacketed tube, hairpin, and pipe-in-pipe heat exchanger.
The double pipe heat exchanger has a small pipe this is surrounded by some other huge pipes. One fluid glide withinside the small pipe, and the opposite fluid acts through the annulus among the 2 pipes. The internal wall of the small pipe is the heat switch surface. The complete warmness switch system takes vicinity withinside the huge tube. In this way, the internal pipe works as a conductive barrier. The outside facet consists of fluid gliding thru the tube facet or inside. This heat exchanger might also additionally have one pipe or a package deal of pipes (however decrease than 30 pipes). The huge pipe has decreased by 2 hundred mm in diameter. In a few conditions, the internal pipe has vertical fins to enhance the heat switch coefficient among operating fluids.
Double pipe heat exchangers are used for small heat switch areas (e.g., 14 m2). The collection connection to elevate the heat switch place wishes greater area and greater accessories, which results in a better strain loss. In addition, it isnâ??t always viable to boom the number of fluid passages on each side. This heat exchanger isnâ??t always exceptionally appropriate for grimy drinks due to the fact the grimy liquid will clog it, and the cleansing of this exchanger could be very hard. The essential benefit of the double pipe warmness exchanger is that it has a smooth operation and easy design.
94762 Heat Pipe Heat Exchanger Suppliers
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Precision Equipments is the leading Shell and Tube heat exchanger manufacturer. A shell and tube exchanger consists of a number of tubes inter-connected inside in a cylindrical shell. This shell and tube exchanger heat through the tubes. there are two fluids cab exchange heat from one place to another. One tubes flows over the outside and other one flows through the tubes. Whether it is a liquid or gas can transfer easily. These tubes are aligned in parallel or cross arrangement. we are using Standard Quality raw material to manufacture of our products.
Shell types Heat Exchanger are classified into fixed and floating type Heat Exchangers. Fixed type Heat Exchangers are used where there are absolutely no chances for inter mixing of two fluids. In this type, the tube sheets are completely welded to the shell and acted as shell flanges. The Floating type Heat Exchangers has the advantages of removability of tube bundle and access for cleaning both inner and outer side of tubes and shell.
BEU heat exchanger are shell and tube exchangers with tube bundle consisting of 'U' shaped tubes fixed by mechanical rolling to only one tube sheet. This type of heat exchangers is designed and built with removable shell and tube to allow easy maintenance.
A heat exchanger is a system used to transfer heat between a source and a working fluid. Heat exchangers are used in both cooling and heating processes. The fluids may be separated by a solid wall to prevent mixing, or they may be in direct contact.
Classification of heat exchangers:
1. Classification according to construction:
Tubular heat exchangers.
Plate heat exchangers.
Extended surface heat exchangers.
Regenerative heat exchangers.
Pipe in pipe heat exchangers:
Hairpin heat exchangers (often also referred to as â??double pipesâ??) are characterized by a construction form which imparts a U shaped appearance to the heat exchanger. In its classical sense, the term double pipe refers to a heat exchanger consisting of a pipe within a pipe, usually of a straight-leg construction with no bends. However, due to the need for removable bundle construction and the ability to handle differential thermal expansion while avoiding the use of expansion joints (often the weak point of the exchanger), the current U-shaped configuration has become the standard in the industry.
Murphy plate finned tube heat exchanger has some obvious advantages in operation, especially in the field of air to air heat transfer, especially in the field of ultra-high temperature air to air heat transfer. To a certain extent, it has become the upgrading product of the tube, heat pipe and finned tube heat exchanger.
The main characteristics of Murphy plate finned tube heat exchanger: the finned tube heat exchanger can be designed with elastic structure, which can effectively solve the problem of its thermal expansion; there are rich test and actual operation data as support, through constant correction of the calculation formula, the calculation error is within 5%, and more than 95% of the equipment operation can reach the design parameters.
We serve our clients in power generation business and all traditional areas of the process industries such as chemical and petrochemical plants as well as refineries. Our Production portfolio includes products and systems for:
Direct Dry Cooling (Air Fin Coolers)
Direct Condensing (Air Cooled Condensers)
Indirect Wet Cooling (Natural Draft Cooling Towers)
Cell Cooling Towers, Hybrid Cooling Towers
Industry Dry Cooling (Mainly Heller System)
Special Applications (Surface Condensers, desublimator, Post Reactors, Shell &Tube Heat Exchangers, Bop Engineering)
Plate heat exchanger
Exchanger Scraped Surface
Exchanger shell and tubular
Exchanger spiral heat
Pipe heat exchanger
Tube and shell exchanger
Cooling condensation equipments
Based on our technology, we are able to develop individual solution as well as standardized system for our customers. Our products are designed for optimal performance, cost-effective operation and minimal maintenance.
Our mission is to be the preferred supplier, recognized for our innovative productions as well as for the high degree of added value generated & quality for our clients.
Seamless stainless steel tube for boiler tube and heat exchanger tube is of the large heat exchange area and handling capacity. It can bear high pressure and temperature. It uses argon welding equipment and electro-polishing treatment between shells and tubes. With strict inspection and testing procedures, it is a nice product for the heat exchange of fluid media in industrial production.
Product Name ASTM A179 A192 U Shape Heat Exchanger Seamless Steel Tubes Stainless Boiler Tube
Material 304/L, 316/L, 314, 321, 347H, 316Ti,Â
316LMod, 317L/N, 310S, 253MA, 330, 904L, S31803, S32205, S32750, S31254, XM-19, TP410, TP405, TP420, TP430,� TP430Ti, TP403, TP409, TP444,TP439, TP446, etc.
Size range OD: 3-813mm
WT: 0.05-120mm
Standard ASTM A213, A210, A192, A179, A106, A249, etc.
Application For manufacture wall panel, heater, boiler, condenser equipment, superheater and steam pipeline of boilers, pipelines and pipeline components
High flux pipe is specifically designed to enhance heat transfer coefficient. A thin, porous metal layer is bonded metallurgically to the heat transfer surface. This pore make liquid produce a large number of bubbles at low superheat, which enhance heat transfer. At the same time, porous structure formed many boiling centre, the film boiling changes to nucleate boiling. So boiling side heat transfer coefficients of 10-30 times that of bare tubes can be achieved, resulting in an overall heat transfer improvement of 2-4 times that of bare pipes.
The main application:
Overhead cooler
Reboiler of ethylene separation
Ethylene glycol unit evaporation tower
Seawater desalination etc.
We supply specialized  manufactured Shell amp Tube Heat Exchangers amp Pressure Vessels Delivering superior quality products in minimum delivery time MOC we can supply in copper brass carbon steels stainless steels like SS304 SS310 SS316L copper alloys such as cupro nickel Admiralty amp Aluminum Brass and many other materials We can supply Heat Exchangers amp Pressure Vessels up to 40 Tons
The product range includes the proprietary plate fin tube heat exchanger oil coolers inter coolers after coolers marine heat exchangers oil cooling systems condensers chillers economizers super feed heat exchangers receivers and surge drums
This products are extensively used in oil and gas refineries air separation plants chemical steel refineries pharmaceutical industries air conditioning amprefrigeration plants heat treatment shops marine engines amp gear boxes induction furnaces machine tools diesel engine generating sets compressors power plant installations transformers hydraulic power packs food processing vegetable oil refining amp sugar industry etc
We are supplying this with certifications such as U R amp NB Stamp from ASME ISO 90012008 quality certificates from LRQA and certifications from DGQA IRS NSIC etc
This are all manufactured in Nondestructive testing such as
Visual Inspection
Liquid penetrant testing
Radiographic testing
Tube to Tube sheet Weld radiography
Ultrasonic testing for raw material and welds
Helium leak testing
Bubble Leak testing
Magnetic particle testing
We are manufacturers of all types of heat exchangers in Coimbatore India. We design and manufacture Double Plate Type, Shell and Tube, Air Cooled Heat Exchanger, Air Cooled Condenser, etc.
Condensers are used for condensation of vapors and cooling of liquids. Condensers are made by fusing number of parallel coils in a glass shell. Coils are made in different diameters using tubes of different bores.
Two fluids, of different starting temperatures, flow through the heat exchanger. One flows through the tubes (the tube side) and the other flows outside the tubes but inside the shell (the shell side). Heat is transferred from one fluid to the other through the tube walls, either from tube side to shell side or vice versa. The fluids can be either liquids or gases on either the shell or the tube side. In order to transfer heat efficiently, a large heat transfer area should be used, leading to the use of many tubes. In this way, waste heat can be put to use. This is an efficient way to conserve energy.
Heat transfer equipment:
We are manufacturing and supplying premium quality heat exchangers that are engineered to perfection for high level operation and trouble free service life. Product Range
Product Range:
Shell & Tube Heat Exchangers
Graphite Type Heat Exchangers
Air Coolers
Plate Type Heat Exchangers
Economizer
Benefits of industrial heat exchangers
Business continuity: Automatic cleaning during process and more regulated air flow increases product quality
Energy recovery for many applications
Less space required faster ROI
Features industrial heat exchangers:
Accurate temperature control: Industrial process air applications up to 140°C and high temperature applications up to 500°C
Heat Exchangers awailable with different MOC on the basis of work to do.
Economical design result in the lower operating cost of Heat Exchanger.
94762 Heat Pipe Heat Exchanger Suppliers
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