Eclipse ThermJet TJ0015 Design Manual Download Page 1 | Manualshive

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Models TJ0015 – TJ2000

Version 2

Eclipse ThermJet

Burners

3/5/07

Design Guide 205

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Summary of Contents for ThermJet TJ0015

Page 1: ...Models TJ0015 TJ2000 Version 2 Eclipse ThermJet Burners 3 5 07 Design Guide 205...

Page 2: ...ed States patents No further warranty is expressed or implied We have made every effort to make this manual as accurate and complete as possible Should you find errors or omissions please bring them t...

Page 3: ...with this kind of equipment Design Guide No 205 This document Data Sheet No 205 1 through 205 13 Available for individual TJ models Required to complete design calculations in this guide Installation...

Page 4: ...these instructions or proce dures Act with great care and follow the instructions Warning Indicates hazards or unsafe practices which could result in severe personal injury or damage Act with great ca...

Page 5: ...n ratio control or excess air low fire 12 Figure 3 2 Modulating gas with fixed air control 13 Figure 3 4 High Low gas with fixed air control 15 Step 3 Ignition System 16 Figure 3 5 Bypass start gas ci...

Page 6: ...es through a combustor using ambient combustion air The high velocity of the gases improves temperature uniformity product quality and system efficiency The ThermJet burner comes in two types HighVelo...

Page 7: ...uel burning devices are capable of producing fires and explosions when improperly applied installed adjusted controlled or main tained Do not bypass any safety feature Fires and ex plosions can be cau...

Page 8: ...cals To reduce this risk limit exposure to these chemicals work in a well ventilated area and wear approved personal protective safety equipment for these chemicals Adjustment maintenance and troubles...

Page 9: ...blower and air pressure switch 6 Main gas shut off valve train selection 7 Process temperature control system Burner size and quantity Select the size and number of burners based on the heat bal ance...

Page 10: ...The furnace temperature limits of the combustors can be found in ThermJet Data Sheets 205 1 through 205 13 The control methodology is the basis for the rest of the design process Once it is known wha...

Page 11: ...ides automatic gas modulation if system air flow changes over time such as a clogged air filter In the pages that follow you will find schematics of these control methods The symbols in the schematics...

Page 12: ...e excess air at low fire Note Do not use an adjustable limiting orifice ALO as the high fire gas limiting valve 3 ALO s require too much pressure drop for use in a proportional system 1 2 Step 2 Contr...

Page 13: ...ulator will adversely affect the ignition reliability at inputs greater than 40 of maximum 1 2 Step 2 Control Methodology continued Multiple burners Automatic shut off at the burner Multiple burners A...

Page 14: ...gas passes through the butterfly valve 3 High fire A control input opens the solenoid valve 1 a b a b NC Automatic shut off by zone NC Automatic shut off at the burner P to other Zones to other Zones...

Page 15: ...lator 2 in a fixed air system is optional on a single burner system only However eliminating the ratio regulator will adversely affect the ignition reliability at inputs greater than 40 of maximum 1 2...

Page 16: ...ts described in the previous section Control Methodology to obtain reliable ignition Local safety and insurance require limits on the maximum trial for ignition time These time limits vary from countr...

Page 17: ...plus the automatic gas shut off valve either at each burner or each zone are opened If a flame is established the bypass solenoid valve closes at the end of the trial for igni tion period If a flame i...

Page 18: ...700 F You can find more information in Info Guide 832 Flame Monitoring Control The flame monitoring control is the equipment that processes the signal from the flame rod or the U V scanner For flame...

Page 19: ...ing Guide EFE 825 The Guide contains tables to calculate the effect of pressure altitude and temperature on air Blower The rating of the blower must match the system requirements You can find all the...

Page 20: ...le 3 1 Required calculation information Description Unit of Measure Formula Symbol Number of burners Type of fuel Gross heating value of fuel Btu ft3 q Desired excess air percentage typical excess air...

Page 21: ...air flow requirement based on the desired amout of excess air Vair 1 excess air x Vair Stoichiometric 1 0 15 x 27 235 ft3 hr 31 320 ft3 hr For this example final blower air flow requirement is 31 320...

Page 22: ...nents as a minimum standard for main gas safety shut off systems Consult Eclipse Eclipse can help you design and obtain a main gas shut off valve train that complies with the current safety standards...

Page 23: ...ound lb kilogram kg 0 454 pounds sq in psi millibar mbar 68 95 Metric to Metric FROM TO MULTIPLY BY kiloPascals kPa millibar mbar 10 meter m millimeter mm 1000 millibar mbar kiloPascals kPa 0 1 millim...

Page 24: ...air pressure switch gives a signal to the safety system when there is not enough air pressure from the blower Gas cocks are used to manually shut off the gas supply on both sides of the main gas shut...

Page 25: ...ulator to the air supply line 742 744 Ratio regulator CRS valve Pressure taps Impulse line A ratio regulator is used to control the air gas ration The ratio regulator is a sealed unit that adjusts the...

Page 26: ...Offered By Power Equipment Company 2011 Williamsburg Road Richmond VA 23231 Phone 804 236 3800 Fax 804 236 3882 www peconet com...

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