Showing posts with label air process heater. Show all posts
Showing posts with label air process heater. Show all posts

BCE Heaters, Feedthroughs, and Control Consoles


At BCE, we understand the need for precision and reliability in industrial applications. That's why our vacuum feedthroughs, electric heating elements, and con are designed to meet the highest standards. 

BCE’s electric heating elements provide consistent, controllable heat distribution essential for critical thermal processes. 

Our vacuum feedthroughs ensure tight connections, preventing leaks and maintaining vacuum integrity. BCE Control Consoles work well with all custom heater assemblies and are quality-built, self-contained systems for monitoring and controlling process temperatures in a wide range of fixed or portable applications. 

BCE Mfg. 
21060 Corsair Blvd. 
Hayward, CA 94545 
510-274-1990

Environmentally Friendly Mini Clean Flow Heater Replaces Gas Burner System

Mini Clean Flow Heater

BACKGROUND

The application involved using environmentally friendly electric heat replacing a gas burner type system.  The engineering request was to conform to a direct replacement 3” stainless tubing while utilizing BCE’s Mini Clean Flow In-line design.  The challenge was building the right inlet and outlet fittings in-line for a seamless change in the air heating process (gas to electric).  Electrically isolated elements in the air stream were required with a high temperature thermocouple assembly near the outlet.

SCOPE

Mini Clean Flow – Hi Wattage needed to satisfy the following:
  • Temperature 482°C to 648°C
  • Internal element must be able to withstand temperature <750°C and be electrically isolated
  • 3” outside diameter, no insulation 
  • A sanitary fitting on the inlet with an NPT on the outlet
  • A cold section on the heat source was required with fiberglass leads  
  • 304 stainless steel material on the heat source and vessel 
  • Type “J” Thermocouple able to withstand high temp at the outlet  
  • 480Volt, 7,000Watt (+/-10%)  

OUTCOME

BCE produced a highly effective Mini Clean Flow heater meeting the delta “T” requirements during the final testing.  We were able to pressure test the part to 90PSI @ 20⁰C-25⁰ without any visible leaks in the weld or braze joints.    A thorough quality inspection was completed on the heater source with final cleaning using isopropyl alcohol and dry air. 


+1 510-274-1990

MEGA CLEAN FLOW Heater: Minimizing Toxic Emissions for Cogeneration

BACKGROUND

Using a small (~25HP) lean burn natural gas motor for cogeneration, our customer wanted to mitigate toxic emissions on the exhaust. The challenge is reducing Formaldehyde and Benzine output levels as well as reducing all other toxins without air-flow exposure to ni-chrome resistors.


The MEGA CLEAN FLOW HEATER needed to satisfy the following criteria:
  • Exhaust air flow rates from 15cfm to 30cfm
  • Inlet 2” NPT, outlet 2” NPT
  • Engine loads for 25% to 100%
  • Insulation of all inlet & outlet entries as well as process chamber
  • Air-flow exposure to 304 or 316 stainless steel only
  • Outlet temperature must be <288°C at ALL flow rates
  • BCE Controllers needed for operating temp and
  • 50 Meg-ohm isolation at 500 VDC
  • Hi-pot 2E + 1K at 3mAmp
  • ALL TESTS PERFORMED AT ROOM TEMPERATURE 
OUTCOME

The Mega Clean Flow Heater proved to be the most optimal design for Cogeneration. The temperature, watt density, and variable flow rates assured success when operating the instrument. BCE’s proprietary design was essential in the application.

BCE’s Mini-Clean Flow (MCF) Heater at the Core of 4D Entertainment

BCE Mini Clean Flow (MCF) Heater
BCE Mini Clean Flow (MCF) Heater
Picture this: a heater that can sustain elevated motion, high temperatures and pressures, and be compact enough to fit into a restricted assembly. BCE was approached by a worldwide provider of 4D cinematic experiences to help design a custom heating apparatus. This novel thermal assembly would be capable of creating a desired heat effect enhancing the viewing of attraction films around the globe.

SCOPE
The heater of the apparatus needed to be able to:
  • Generate internal temperatures exceeding 500°C 
  • Ramp to elevated temperatures within minutes 
  • Operate at low voltage: 24V 
  • Sustain pressures up to 80 psi 
  • Assemble easily to a control valve 
  • Remain operable at a motion of 10 g 
  • Allow for acute temperature control 
  • Have a low mass design for efficient heat transfer 
  • Be compact; allowing the assembly to remain within a 10” envelope 
OUTCOME

BCE’s MCF heater provided the optimal solution to this design challenge. During pre-heat with no air flow, the internal temperature of the MCF reached 320°C. After an 80 psi air burst and temperature drop, the low mass of the heater was able to achieve an internal temperature of 505°C in just under 90 s during the heat effect. This greatly surpassed customer expectations. Not only was its compactness an asset in maintaining the dimensional restrictions, its unique design with NPT fitting assembled easily to other components. Moreover, the built-in thermocouple type K offered precise temperature monitoring for this sensitive application. Finally, its robust design allowed for continuous operation under the most strenuous pressures and motion.

New Compact Heater for Clean Liquids and Gases

The BCE Mini Clean Flow Heater operates in a liquid or gas stream providing very fast response times and accurate control capability.

The heating elements in the Mini Clean Flow Heater are isolated electrically from the process media, protecting them from contaminants and providing long life.
  • Designed for heating of clean gases or liquids 
  • Gas flow passes over an enclosed heated body; not exposed to resistive elements (ni-chrome) 
  • All parts exposed to gas flow are constructed of 304 stainless (other material available) 
  • High temperatures 
  • Custom wattages, voltages, inlet and outlet fittings are available. 
  • Made in U.S.A.

Hotwatt Electric Heating Elements for OEM, Laboratory, and Industrial Applications

Hotwatt
Hotwatt Electric Heating Elements
Hotwatt is a leader in manufacturing resistance heating elements. They have an extensive product line that includes cartridge heaters, immersion heaters ideally suited for heating various liquids, air process heaters for providing hot air and gas up to fourteen hundred degrees, stainless steel strip and finned strip heaters in various sizes, self-contained one piece assembly oil in rope heaters; tubular and finned tubular heaters which have been specially built to resist impact, vibration, corrosion, and temperature extremes; extremely versatile band heaters for a multitude of applications; and ceramic and crankcase heaters for custom solutions. Hotwatt's technical information and accessory items ensure that hard what has everything you need for complete thermal system.

Contact BCE for more information at (510) 274-1990 or visit http://www.belilove.com.

NEW BCE Clean Flow Electric Mini-Heater with Probe Assembly

Check out the new design mini heater designed to heat flowing gases and liquids. Designed and developed by BCE.

Applications

Baking, Drying, Laminating, Metal Working, Packaging, Plastic Welding, Preheating, Sealing, Soldering, Shrink Fitting, Synthetic Fabric Sewing.

Mini Clean Flow Electric Heater:
  • Designed for heating of clean gas. 
  • Gas flow passes over an enclosed heated body; 
  • not exposed to resistive elements (ni-chrome). 
  • All parts exposed to gas flow are constructed of 
  • 304 stainless (other material available). 
  • High temperatures and ranges are available ask a 
  • BCE engineer.

A Mini Electric Heater for Clean Flowing Gases

Need a small, compact electric heater to heat flowing air or gas? Equipment manufacturers and laboratory engineers  can find themselves challenged to provide a stream of clean high temperature air or gas.

The solution? A mini “process air” heater.

These heaters are designed so that the stream of air is heated by passing over an enclosed heated metal surface rather, than directly over resistance elements. This prevents contaminants from entering the flow of gas.

Generally, these heaters have the following specifications:
  • Designed for applications where streams of high temperature, clean air is needed. 
  • Air flow passes over an enclosed heated body; not exposed to ni-chrome  resistive elements.
  • Constructed of 304 Stainless Steel (other material is available). 
  • High temperatures, ranges and temperature sensors are available. 
Electric process air heaters provide quick heat up and cool down cycles with maximum heat transfer. They are compact and available in a variety of voltages.

There are many uses for these clean air process heaters. Some general applications are laminating, drying, baking, shrink fitting, plastic welding, soldering, preheating and metalworking, and packaging.

More specific industry uses are:

Aerospace:
  • Combustion testing
  • Flow simulation
  • Component stressing
Automotive:
  • Curing adhesives
  • Fuel cell testing
Packaging:
  • Paperboard sealing
  • Heat shrink installations
  • Forming
  • Curing adhesives
  • Sterilizion
  • Pharmaceuticals
  • Medical/surgical hardware
  • Packaging materials
Paper/Printing:
  • Speed drying
  • Activation adhesives 
  • Ink drying

Semiconductor/Electronics:
  • Air knife in wave solder machines
  • Soldering/desoldering PC boards
  • Multi-station desoldering
  • Wafer and PC board drying
  • Heat shrinking insulation
  • Preheating process gases
Textiles:
  • Heat welding plastic or vinyl
For more information about these heaters, contact:

BCE
21060 Corsair Blvd
Hayward, CA 94545
Phone: (510) 274-1990
Fax: (510) 274-1999
E-mail: sales@belilove.com
www.belilove.com

Electric Heaters for Heating Flowing Gases To 1000 F

Electric air heaters
Examples of air heaters
(click for larger view)
Do you need a small, compact electric heating system that can heat flowing gas or air up to 1000 degrees F.?

You may want to consider an inline "air process heater".

These fabricated (usually custom) electric heaters are self-contained, provide inlets and outlets, wiring,  sensors to measure internal temperatures, and are available in a variety of materials.

Air Process heater provide hot air and gas up to 1000oF (540oC) with infinite control by varying the voltage and air velocity supplied.

Units are fitted with a tubing “T” for convenient power lead outlet, while larger diameters can be supplied with post terminals on the sheath for direct electrical connections.

Designs can accommodate male or female NPT threaded fittings, hose adaptors, flanges, or custom fittings to your specifications.
Typical Air Heater Construction
Construction
  1. Optional stainless steel bushing. 
  2. Ceramic coil support.
  3. Resistance element.
  4. Stainless steel sheath. 
  5. Silver solder.
  6. Fiberglass insulated leads. 
  7. Epoxy seal.
  8. Copper tee.
  9. Heliarc weld.
  10. Optional brass bushing.
To properly size and select an air process heater:
  • Determine the volume of air or gas(SCFM) you will be heating. 
  • Determine temperature rise in degrees Fahrenheit(􏰁ToF).
  • Calculate wattage required as follows:
    • Watts = SCFM x delta-T oF / 3
Take into consideration the physical size requirements of your application and determine from the specifications chart for each size, the air heater best suited for your application.

Summary of Features:
  • Exit air temperatures to 11000oF (540oC).
  • Standard pressure rating is 80 psig at room temperature. 
  • May be used with recirculating air up to 250oF (121oC).
  • Designed for horizontal use.
  • For use with clean, dry air.