Specification Sheet of 350 BHP High Pressure Steam Generating Boiler

Description

Qty

High Pressure Saturated Steam Generating Boiler

01 No.

Boiler Output Rating

350 BHP

Nominal Evaporation Rate

5 Tons/hr

Boiler Design Pressure

225 psig

Boiler Working Pressure

150 psig

Efficiency

>90% @25%-100% Load (Turn Down Ratio 1:4)

Code Compliance

ASME Section-I, IV & VIII. ASME Stamped

Type

3 Pass Packaged Type Wet back Fire Tube Boiler

Door

Bolted Front and Rear Doors

Observation Port

Eye Glass for Flame Monitoring provide with high temperature glass at rear

Heating Surface Fire Side

≈1750 Sq. ft

Installation Altitude

≈2,000 ft Above Sea Level

Burner

Dual Fuel Burner (LSD &Natural Gas)

Flame Safe Guard System

Self-Diagnostic Micro-processor Control

Main Fuel

Natural Gas @ 4-15 psig & 1,000 BTU/Cu. ft

Alternate Fuel

Diesel fuel Oil (LSD)

Control Systems

PLC base control system with digital display

Electrical Supply

220V -1 Phase/380V-3 Phase ±10%, 50Hz

Blow Down Control

Automatic Conductivity Metering and Blow down controls with additional provision of manual blow down through Lever Type Quick Opening Valve.

Documentation

Test Reports of Boiler & Burner Assembly, Technical Specifications, Spare Parts List, Installation, Operation and Maintenance Manuals, Wiring Diagrams etcetera should be provided. Cross-Sectional Drawings of Boiler All 3 views Elevation (Front), Plan (Top) and side Views in Detail.

Certificates

1. 3rd Party Inspection Certificates.

2. Stress Relieving Certificates after Welding works.

3. Safety Valves Testing/Calibration Certificates.

4. Low and high Fire Test Certificates of all parameters like increasing boiler pressure till working pressure 150 psig along with feed water pump operation.

5. All Boiler Pressure Gauges Testing Certificates.

6. Hydrostatic Testing Certificate.

Notes:

1. Manufacturer recommended spare parts of five years operation including 02 Nos. quantify of Boiler Control Cards and special tools should be provide and listed item wise in documents.

2. Boiler and its main components Burners, Controls etcetera and auxiliary components/ Spares parts must be brand new. Refurbished and used old stores will not be accepted.

3. HP & LP chemical dosing unit may also be provided.

4. Stack must also be included in Boiler package. 

5. Safety provisions such as explosion doors must also be provided.

6. Boiler Controls and Controls systems should be of well-known brand/s and must withstand/ remain operational during longs periods against high temperature exposure. Boiler burner may preferably of Weishaupt Germany and/ or Saki Japan.

7. Manufacturer’s specified equipment/tools for boiler maintenance are also included in the package such as flexible shaft for tube cleaning with electric motor.

8. All documents and certificates must be in English language in duplicate hard copy format.

-(2)-

350 BHP, 05 Tons/hr boiler may include following provisions and controls

(1)-Primary LWCO/Pump Control: Auto Reset

Flanged Rear Vertical Vent Connections

(1)-Auxiliary LWCO for Manual Reset

-(1) 50°C to 300°C Range Stack Thermometer

(1)- Water Column Level Gauge Glass Assembly

-Sealed Flue Gases Turn Spaces Front & Rear.

(2)- Pressure Safety valves per ASME Code preferably single spring full lift pop active steam valve

Hand hole inspection openings as per ASME Code including the same for inspection of water sides.

(1)-Operating Controls-Auto reset

-GI jacket with insulation of appropriate thickness and density.

(1)- High Limit Control-Manual reset

-Fabricated Steel Base With Saddle and Skids

(1)-Low fir hold control-Auto reset

-Front Fireside out access port and cover

(1)-Modulating Control Proportional Control

-Insulated front and rear covers- bolted arrangement

(1)- Steam Pressure & Temperature gauges

-Refractory lined burner mounting adapter plate

(1)-Feed Water connections

(2)-Main Steam Pressure Gauges dial size10”

(2)- Two Main Reflex Water Level indicator

-Walk way platform accessible by stairs at boiler top center line for easy access to Boiler Top and Man hole for inspection of water side.

(2)-Feed Stop & Check Valve (as Loose Shipping)

(2)-Bottom and Surface Blow down Connections and Valves

(1)-Flanged Main Steam Connection along with non-return Valve/s and Gate/Globe Valves

(2)- Blow Down Valves preferably Lever type Quick Opening Valves

Forced Draft Burner Control

-Forced Draft Burner with single /3 phase, 220V/ 380V and 50Hz motor.

-Dual Fuel burner for both fuels i.e Natural gas and Diesel Fuel Oil (LSD)

-Guaranteed proven low fire start

-Microprocessor based flame control

-Combustion air-low air pressure inter lock

Main gas train/Manifold assembly include

-Manual gas Cocks (2) main (2) with test connection

-Main Gas Regulators, Filters, Strainers and Safety Valves

High and Low gas pressure control interlocks

Pilot Gas Train Assembly Include

-Alarm bell with silencing switch

-Pilot Gas Pressure Regulator

-Pilot Gas Solenoid Valve

-Pilot Manual Shut Off Valves

Complete Burner Flame Management System

-Flame Failure Cutoff

-Drum Low Water Alarm/Tripping

-Dual Ultraviolet flame sensor

-pre/Post Purging Cycle

-Modulating Type Combustion Control

-Force Draft Fan Tripping/ Interlocking/Dependency etc.

Alternative Fuel LSD system provision

Provision/Supply of factory fitted/assembled LSD fuel injection system complete in all respects and ready for use.

Fuel Injection Pump

Quantity 01 No

Manufacturer Specified Fuel Injection Pumps must be provide factory fitted, complete in all respects and ready for use. 01 No Pump directly coupled with drive i.e. electric motors. Fuel injection pump must be essential/integral part of boiler package and required to be factory tested and declared fit for operation.

Note: Boiler should be completely assembled and fire tested at manufacturing site in strict accordance with ASME specification. Boiler should be mounted on sturdy skids for easy installation on ordinary concrete floors. Guaranteed efficiency of at least 90% when operating at 25-100% of rated capacity.

Feed Water Pumps

Quantity 02 Nos.

Duplex pump arrangement with one in operation and other on standby.

Feed Water Pumps Specifications

Type

Preferably Multi-Stage Centrifugal Pump

Drive

Direct Driven

Make

Grundfos (France) KSB (Germany) or Equivalent/Better

Operating Temperature

Up to 110°C

Head

180-215m/ 590-705 ft (250-300 psig/1.74-2.0Mpa)

Discharge

8.0-10.6 CMH/30-40 USGPM