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Page 19

Maximum Terminal Enclosure Temperature

383ºF (195ºC)

T/C types: B,S,R
Materials:
Flange material:

SA-516-70 Carbon Steel

Trim/Bolting/Seats:

Stainless Steel

Protective well:

Blended alumina, ceramic

Purge Requirements:

dry nitrogen, 0.4scfh

* type ‘B’ thermocouple. Max operating temperature is limited by the thermocouple melting point.

Model Numbering System

Содержание HTP

Страница 1: ...HTP Model Installation Operation and Maintenance Manual Doc No 00 HTP03 Revision Rev P ...

Страница 2: ...sories 5 Inspect the Nozzle 6 Installing the Thermocouple 9 Vertical Installation 9 Non Vertical Installation 13 Non Vertical Installation Using the HMB Mounting Bars 14 Wiring 15 Purge Gas Connection 16 Purge Element Well Integrity Test 17 Technical Operation and Maintenance 18 Pre Commissioning Commissioning Procedure Startup 18 Shutdown 18 Operation 18 Maintenance 18 Troubleshooting 18 Specific...

Страница 3: ...g and element well Models HTP and HTX are identical in operation installation and performance Slight differences in dimensions are shown at the end of this manual HRW Refractory Well The large refractory well collar rests in the refractory and protects the element well HNP Nozzle Insulation Kit Woven and Pressed Disks for proper insulation of the nozzle also protection against nozzle overheating b...

Страница 4: ...t is susceptible to damage from rough handling Units should only be handled with their protective shipping pipes in place and whenever possible transported to from the installation site in their original shipping containers Pre Installation Preparation A video of the installation process is available at http www youtube com watch v r2WmrERLEaQ You can view the video on a smartphone by scanning the...

Страница 5: ...ool into the lug welded to the protective pipe and using it as a lever twist the pipe to loosen it to permit easy removal by hand at the installation site Occasionally this may require the use of a pipe wrench Loosen the pipe but leave the pipe in place until the thermocouple is to be inserted into the vessel nozzle f Inspect inside the end of the pipe and gently touch the tip of the element well ...

Страница 6: ...iameter centered in the nozzle and in perpendicular alignment relative to the nozzle flange face If the hole does not meet the above criteria the thermocouple can become broken shortly after start up as refractory begins to shift Check the nozzle and refractory dimensions Refer to the drawing on the cover of this document To ascertain Insertion Length F lay a straight edge across the flange face a...

Страница 7: ...ottom of the refractory well causing it to break See Note 4 below Contact Delta Controls to arrange for a thermocouple correctly sized for the installation 3 Incorrectly specified thermocouple dimensions The design intent is for the thermocouple element tip to be positioned even with the refractory hot face and for the HRW Refractory Well to extend approximately 1 inch 2 5 cm past the refractory h...

Страница 8: ...p to close by itself when the furnace reaches operating temperature If this is the only cause of dimensional discrepancy thermocouple installation may proceed 7 Refractory has separated from the vessel shell This condition is not common but it is possible for a gap to appear between the insulating refractory and the vessel shell The result is that the thermocouple may not extend far enough into th...

Страница 9: ...ould extend about 1 inch 25 mm beyond the refractory into the reactor vessel The fit should be somewhat loose Model HRW Refractory Well F 1in Insertion Length F Element Well Refractory Well 2 Double check for proper clearance prior to thermocouple insertion by measuring from the bottom of the refractory well up to the flange face The distance should be approximately 1 inch 25mm longer than the ins...

Страница 10: ...ely 8 10 each of the soft compressible nozzle rings with the 19 mm center hole in the bottom of the nozzle Insure that the center holes are in alignment Compressible Nozzle Rings Collar Rings 5 Place enough of the rigid pressed 1 1 2 38 mm thick rings into the nozzle so that the top half of the top ring extends above the flange If needed remove or insert additional lower soft rings to obtain this ...

Страница 11: ... turn it to a vertical position The installer then grasps the unit by the top housing permitting the unit to hang vertically plumb With no assistance center the element well over the center hole in the top insulating ring and gently lower the unit into place on the flange Gasket 9 The soft compressible nozzle rings will compress as the thermocouple is positioned into place Compressible Nozzle Ring...

Страница 12: ...rge connections Performing this test as soon as possible prior to reactor startup will allow time to obtain replacements in the event of element well breakage In general replacement is not possible while the reactor is running A thermocouple that has a broken element well or that is improperly purged will only operate for a short time before failing 11 Install instrument conduit wiring and purge g...

Страница 13: ...the element protective well The Model HMB Thermocouple Mounting Guide Bars provide an easy and safe means of inserting the heavy thermocouple in non vertical nozzles The use of the guide bars minimizes the risk of breakage of the element protective well due to misalignment of the unit with the nozzle centerline as it is being inserted into position A video showing the use of the HMB mounting bars ...

Страница 14: ...king sure the thermocouple unit is correctly rotated so that the purge and wiring connections are oriented in the desired direction allow the mounting bars to support the weight of the thermocouple as it is carefully guided into position Wiring connections 7 Loosely install studs and nuts in all empty holes to hold the thermocouple in place as the guide bars are removed 9 Install the remaining stu...

Страница 15: ...and D to designate which thermocouple is connected at each set of two terminal points The negative lead position is marked with a red dot on each set The standard arrangement is O The Operating thermocouple usually a type R S or B platinum rhodium R The Reference thermocouple same type as the operating thermocouple D The Dryout thermocouple usually a type T or K supplied as an option on some model...

Страница 16: ... pdf for details Connect the purge gas tubing to the HTP HTX thermocouple as shown Regulated filtered gas enters the top purge gas connection and exits the lower purge gas connection Set the purge pressure to 5 psi 0 35 bar above the maximum thermal reactor operating pressure Adjust the needle flow control valve for a flow rate of 11 lph as indicated on the flow meter This provides sufficient flow...

Страница 17: ...etting Verify that the purge pressure is at least 5 psi above the maximum operating pressure of the reactor normally 15 to 20 PSIG is suitable Adjust if necessary 2 Purge Flow Setting Verify the purge flow rate is correct 11 LPH as indicated on the flow indicator Adjust if necessary TO VENT PURGE GAS SUPPLY MODEL HFS PURGE GAS PANEL rear view FRESH PURGE SPENT PURGE GAS THERMOCOUPLE Claus Thermal ...

Страница 18: ...up Use the pressure regulator adjustment on the HFS purge panel to set the purge pressure to approximately 5 psi above the maximum operating pressure of the reactor Using the needle flow control valve on the HFS purge panel adjust the purge flow rate to 11 LPH as shown on the flow indicator Shutdown Continue purging the thermocouple during shutdown until the reactor has cooled and reaction gases a...

Страница 19: ...Materials Flange material SA 516 70 Carbon Steel Trim Bolting Seats Stainless Steel Protective well Blended alumina ceramic Purge Requirements dry nitrogen 0 4scfh type B thermocouple Max operating temperature is limited by the thermocouple melting point Model Numbering System ...

Страница 20: ...Page 20 Dimensions Model HTX Thermocouple Model HTP Thermocouple ...

Страница 21: ...Page 21 585 Fortson Street Shreveport LA 71107 USA Ph 1 318 424 8471 Fax 1 318 425 2421 E mail sales deltacnt com Web www claustemp com ...

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