Summary of Contents for De Nora Capital Controls 71V3B Series
- Page 1 Instruction Manual Series 71V3B Electrically Heated Vaporizer CAPITAL CONTROLS ® - 1 - 115.6031.0...
- Page 2 Technologies for clarification before commencing any work at +1 215-997-4000 and ask for a Field Service Manager. De Nora Water Technologies reserves the rights to make engineering refinements that may not be described herein. It is the responsibility of the installer to contact De Nora Water Technologies for information that cannot be answered specifically by these instructions.
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Page 3: Table Of Contents
Table of Contents SAFETY SUMMARY ................................5 READ FIRST ..................................6 INTRODUCTION ................................7 General Description ....................................7 Model Numbering Breakdown ................................8 Component Description ..................................10 1.3.1 General ...................................... 10 1.3.2 Basic Vaporizer Unit ................................10 1.3.2.1 Water Chamber ............................10 1.3.2.2 Vaporizing Chamber .......................... - Page 4 MAINTENANCE ................................33 SULFUR DIOXIDE APPLICATIONS ..........................40 Certificate of Conformity ............................... 43 FIGURES Sectional Diagram ....................................... 9 Typical Installation ....................................16 Water Supply Piping ....................................16 Outline & Mounting Dimensions, 12 kW & 15 kW Heaters ......................17 Outline & Mounting Dimensions, 18 kW Heater ..........................18 Interconnection &...
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Page 5: Safety Summary
Some process upsets may cause injury or damage. RETURN OF EQUIPMENT: All equipment being returned to De Nora Water Technologies for repair must be free of any hazardous materials (acids, alkalis, solvents, etc.). A Safety Data Sheet (SDS) for all process liquids must accompany returned equipment. -
Page 6: Read First
Incidental scratches and other finish damage must be repaired and promptly re-painted with approved touch-up paint. Provide the model number and size of your product to the nearest De Nora Water Technologies representative to obtain the correct touch-up paint. -
Page 7: Introduction
INTRODUCTION General Description CAPITAL CONTROLS® Series 71V3B Electrically Heated Vaporizers are used to convert liquid Chlorine, Sulfur Dioxide or Ammonia, as specified at time of purchase, into a superheated gaseous state. The Vaporizer consist of a vaporizing chamber housed within a self-standing vented water chamber heated by an integrally mounted electric immersion heater. -
Page 8: Model Numbering Breakdown
Model Number Breakdown Refer to the De Nora Water Technologies data sheet for the model number of the equipment furnished. Model Number Breakdown Model No. 71V3B Gas & Capacity 01 - Chlorine 12000 lb/day (227 kg/h) 02 - Chlorine 8000 lb/day (160 kg/h) -
Page 9: Sectional Diagram
Figure 1 - Sectional Diagram - 9 - 115.6031.0... -
Page 10: Component Description
Component Description Refer to Figures 1, 2, 3, 4 and 5 to supplement the following text. 1.3.1 General In addition to the components described in Section 1.3.2, which comprise the Basic Vaporizer Unit, all Vaporizer Systems should be piped and valved to include the auxiliary components as shown in Figures 2 and 3. -
Page 11: Water Temperature Control
1.3.2.6 Water Temperature Control The water bath temperature is measured using a T-Type thermocouple connected to a programmable electronic temperature controller. The controller regulates the water temperature and provides the following functions: • Control of the temperatures at which the heater turns on and off (with programmable hysteresis) •... -
Page 12: Low Water Level Switch
The ASME Boiler and Pressure Vessel Code requires a pressure relief valve on each Vaporizer. This component is mandatory on all systems, and is available from De Nora Water Technologies. The pressure relief valve serves to automatically relieve excess gas pressure which would otherwise develop in the event that the Vaporizer is isolated by valve closure. -
Page 13: Vent Blow-Off Valve
As an alternative to the above, De Nora Water Technologies offers a Purge Meter (P/N 806H022U01) for trickle-filling of the Vaporizer. Installation of this Purge Meter assembly and the associated piping is shown in the Recommended Piping Arrangements inset of Figure 3. -
Page 14: Installation
INSTALLATION Select a location which can be isolated from unauthorized personnel. The selected location should be indoors where the ambient temperature does not fall below freezing. Select a well ventilated room provided with a source of heat to maintain an ambient temperature above freezing at all times for Chlorine and Ammonia, and above 70°F for Sulfur Dioxide. -
Page 15: Electrical Interconnections
Heat tracing of the pipe section between the Vaporizer and pressure reducing valve may also be advisable to maintain the gas superheat temperature. This is especially true for Sulfur Dioxide service. Refer to the super heat curves further in this manual. Note also that the addition of a gas filter in this pipe section will act as a heat sink further reducing the super heat temperature. -
Page 16: Typical Installation
OUTSIDE WALL PRESSURE REDUCING AND SHUT-OFF VALVE VENT LINE (SEE NOTE 7) EMERGENCY AND SERVICING VENT LINE 1 INCH PRESSURE RELIEF VALVE. INSECT SET AT 300 PSIG FOR ALL THREE CHEMICAL SERVICES. SCREENS MANDATORY BY ASME BOILER AND PRESSURE VESSEL CODE SECTION 13, DIVISION 1, PARAGRAPH UG-125 OPTIONAL: 1 INCH OR 1/2 INCH BYPASS LINE AND VALVE. -
Page 17: Outline & Mounting Dimensions, 12 Kw & 15 Kw Heaters
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Page 18: Outline & Mounting Dimensions, 18 Kw Heater
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Page 19: Interconnection & Wiring Diagrams For Vaporizers With Integral Magnetic Heater Contactor And Love Controller
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Page 20: Interconnection & Wiring Diagram For Vaporizers With Remote Magnetic Heater Contactor And Love Controller
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Page 21: Interconnection & Wiring Diagram For Vaporizers With Integral Magnetic Heater Contactor & Water Level Control And Love Controller
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Page 22: Typical Interconnection Wiring Diagrams For Vaporizers With Remote Magnetic Heater Contactor & Water Level Control And Love Controller
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Page 23: Operation
Vaporizer. NOTE It is recommended that De Nora Water Technologies be contacted to obtain the services of trained personnel to assist and instruct plant operating personnel at the time of initial start-up. At that time the De Nora Water Technologies service personnel will instruct plant operators in the steps to be taken for replenishing the supply of liquid chemical when the in-service supply is exhausted. -
Page 24: Electrical
Electrical Apply AC power to the control circuit connection box (see Figures 6 through 9). Energize the immersion heater by closing the circuit breaker in the power supply line to the heater. While the Vaporizer is warming-up, leak test all piping. NOTE All connections must be made in accordance with the National Electrical Code, NFPA-70 and/or all applicable local codes. -
Page 25: Optional Water Level Control
Connect a source of Chlorine, Sulfur Dioxide or Ammonia gas to the Vaporizer supply piping. DO NOT use liquid Chlorine, Sulfur Dioxide or Ammonia for leak testing since one volume of liquid Chlorine expands to roughly 450 volumes of gas. Leave the first in-line valve closed. -
Page 26: Changing The Temperature Setpoint
WATER BATH TEMPERATURE WATER BATH TEMPERATURE WATER BATH TEMPERATURE SET POINT OR PARAMETER INDICATION AUTO TUNE (NOT USED) ALARM 2 LOW TEMP ALARM HEATER "ON" INDICATION ALARM 1 HIGH TEMP ALARM UP ARROW: Increments a value or changes a menu item. -
Page 27: Changing The Temperature Units
3.6.2 Changing the Temperature Units The following steps describe the procedure for changing the displayed temperature units either from °F to °C or °C to °F. Temperature control will be suspended while performing this change. 3.6.3 Description of Menu Structure The programming for the controller is broken down into three menus (Operation, Regulation, and Initial Setting). -
Page 28: Regulation Menu
Menu Default Settings HEAT Heat/Cool Selection Alarm 1 Setting. Sets operation for Alarm 1. Please see selection on Alarm Outputs for description of the outputs. Alarm 2 Setting. Sets operation for Alarm 2. Please see selection on Alarm Outputs for description of the outputs. C-SL ASCII Communications... -
Page 29: Controller Operation
6) Contact De Nora Water Technologies if the water temperature controller must be set above 165°F for Chlorine to provide the minimum superheat requirement the first time the vaporizer is placed in operation. This is indicative that the following conditions could exist: •... -
Page 30: Checking Vaporizer Performance
NOTE: Figures 12, 13 & 14 show the effect of the ambient temperature on the pressure in the gas source containers. This relationship is shown as the solid line on the graphs. Setting the heater temperature controller during cooler ambient temperatures will require that the controller set point be increased as the ambient temperature rises in order to maintain the proper superheat shown on the dotted line of the graphs. -
Page 31: Shutdown In The Event Of A Leak
Although the Vaporizer may be operated at any temperature up to 205°F. It is recommended that the Vaporizer be disassembled, cleaned and inspected when the heater Duty Cycle reaches 90%, even if the operating temperature is less than 205°F. The Duty Cycle may be timed using a stopwatch or equivalent and is determined as follows: On Time + Off Time = Total Time Duty Cycle = On Time Total Time... -
Page 32: Shutdown For Non-Extended Periods
3.10 Shutdown for Non-Extended Periods This procedure is for those instances where gas feed will be intermittent and the Vaporizer is maintained at the operating temperature. If the Vaporizer heater is to be turned off, refer to paragraph 3.11. WARNING Do not close any valves on the liquid gas piping or the source containers. -
Page 33: Maintenance
Therefore, only De Nora Water Technologies parts, manufactured from materials selected for their proper corrosion-resistant properties, must be used. When ordering parts, always furnish the complete model and serial number of the Vaporizer, and the chemical being used. - Page 34 8) Disconnect and remove all sensor extensions from the vaporizing chamber cover and support flanges. Then remove the mounting bolts from the support flange (i.e., the bolts which extend through the lip of the water chamber); and lift the vaporizing chamber from the water chamber using the lifting eyes (provided in the support flange for this purpose) and a one ton capacity overhead chain hoist.
- Page 35 Be certain to orient the support flange so that the inlet and outlet connections of the vaporizing chamber are located in their original position. However, do not reconnect the removable pipe sections at this point. If the Vaporizer is equipped with cathodic protection, it is recommended that the magnesium rods be replaced at this time.
- Page 36 TABLE 4-1 TROUBLESHOOTING CHART PROBLEM PROBABLE CAUSE CORRECTIVE ACTION Unable to maintain evaporator 1. Vaporizer chamber fouled, dirty or 1. Disassemble the evaporator and capacity. filled with deposits, reducing clean as necessary. chamber capacity. 2. Tank car padding pressure high 2.
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Page 37: Chlorine: Temperature - Pressure Relationship
TEMPERATURE (IN °C) 15.6 26.7 37.8 48.9 60.0 71.1 82.2 93.3 2068.4 1930.5 1792.6 1654.7 1516.8 1379.0 1241.1 1103.2 965.3 0° F SUPERHEAT 827.4 20° F SUPERHEAT 689.5 551.6 413.7 275.8 137.9 TEMPERATURE ( IN °F ) Figure 12 - Chlorine: Temperature - Pressure Relationship - 37 - 115.6031.0... -
Page 38: Sulfur Dioxide: Temperature - Pressure Relationship
TEMPERATURE ( IN °C) 15.6 26.7 37.8 48.9 60.0 71.1 82.2 93.3 827.4 689.5 551.6 0° F SUPERHEAT 413.7 30° F SUPERHEAT 275.8 137.9 TEMPERATURE ( IN °F ) Figure 13 - Sulfur Dioxide: Temperature - Pressure Relationship The source of Sulfur Dioxide must be at least 55°F in order to have sufficient pressure to allow the feed system to operate at its full capacity. -
Page 39: Ammonia: Temperature - Pressure Relationship
TEMPERATURE (IN °C) 15.6 26.7 37.8 48.9 60.0 71.1 82.2 93.3 2068.4 1930.5 1792.6 1654.7 1516.8 1379.0 1241.1 1103.2 965.3 0° F SUPERHEAT 827.4 12° F SUPERHEAT 689.5 551.6 413.7 275.8 137.9 TEMPERATURE ( IN °F ) Figure 14 - Ammonia: Temperature - Pressure Relationship - 39 - 115.6031.0... -
Page 40: Sulfur Dioxide Applications
This information is included here to indicate the severity of some of the moisture problems possible when using Sulfur Dioxide (SO ). Please note that the failed Vaporizers mentioned in this excerpt were not manufactured by De Nora Water Technologies. CAUTION If using the method of water removal detailed in the excerpt below, possible vacuum damage may occur to rupture discs without vacuum backing plates diaphragm seals used on pressure switches and gauges. - Page 41 The amount of moisture that collects in the container will depend upon the moisture content in the SO and the rate of SO withdrawals. Therefore, each installation will require a special procedure of boil-off time and frequency of boil-off. In most cases moisture will be visible in the sulfonator rotameter tube, and when this moisture disappears the boil-off procedure can be terminated.
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Page 43: Certificate Of Conformity
Sulphur Dioxide Vaporiser Manufactured by: De Nora Water Technologies 3000 Advance Lane Colmar, PA UNITED STATES 18915 Conforms with the requirements of the following European Directives Directive 2004/108/EC (as amended) of the European Parliament and of the Council of 15 December... - Page 44 Design improvements may be made without notice. Represented by: De Nora Water Technologies 3000 Advance Lane Colmar, PA 18915 ph +1 215 997 4000 • fax +1 215 997 4062 web: www.denora.com mail: info.dnwt@denora.com OCT 2018 ®Registered Trademark. © 2018. All Rights Reserved.