Three Gas Fired Watertube Boilers (3x130 Mwt) Technical Specifications
2022-09-29 08:28:21The Company SBB ENERGY S.A. invites you to submit an offer for the designing, manufacture, delivery, transport, commissioning supervision during erection and start up for three gas fired watertube boilers (3x130 MWt) with the following parameters required by technical Specification:
|
No. |
Specification |
Unit |
Value requirement by client |
Warranty value by performer |
Comments |
|
1. |
Nominal power of boiler – working by the greatest demand |
MWt |
130 |
………………………
|
1) By water flow 3000 m3/h 2) For temperature water (inlet, outlet): tin = 65 ÷ 110 °C tout = 90 ÷150 °C 3) By pressure p=1,15-1,45MPa
4) not less than 125MWt |
|
2 |
Technical minimum of boiler |
MWt |
26 |
…………………… |
optimum value 5 -10 MW |
|
3 |
Power of boiler by heating season |
MWt |
130 |
……………………… (gives performer regarding offer) |
for tin = 65 ÷ 100 °C tout = 85 ÷ 140 °C
by pressure: p = 1,15÷1,4 MPa |
|
4 |
Power of boiler (work in reserve except heating season) |
MWt |
……………………… (gives performer regarding offer) |
……………………… (gives performer regarding offer) |
for tin = 40 ÷ 55 °C tout = 70 ÷ 80 °C
by pressure: p = 0,8÷1,1 MPa |
|
5 |
Boiler efficiency by nominal power for natural gas |
|
min. 95
|
……………………… (gives performer regarding offer) |
By temperature of inlat water 95°C |
|
6 |
Maximum water flow |
m3/h |
3000 |
……………………… (gives performer regarding offer) |
|
|
7 |
Minimum flue gases temperature |
°C |
……. for natural gas |
……….. for natural gas |
(gives performer regarding offer) |
|
|
|
|
Emission requirements |
IED Standards |
|||
|
SO2 |
NOx (without use SNCR) |
dust |
CO |
|
|
Boiler of fuel – natural gas |
35 |
100 |
5 |
100 |
Required time to achieve nominal parameters at startup from a cold state (stoppage > 8h) : ≤ 1h
Required time to achieve nominal parameters at startup from a warm state (stoppage < 8h) : ≤ 0,5h
Boiler availability: not less than 95% (in first year of exploitation)
Boiler availability: not less than 98% (in second and third year of exploitation)
Required burners with service in EU (prefer localization Poland or neighboring countries).
Boiler should be designed and carried out in accordance with European standards.
Boiler must have all needed documents and CE mark.
Complete project of boiler must be sanded to Purchaser before boiler prefabrication. Start of boiler prefabrication is possible after Purchaser approval of project.
Gas Fired Watertube Boilers
Fuel parameters:
1) Natural gas minimum parameters
|
Parameter |
Unit |
Value |
|
High heating value (HHV) |
MJ/m3 |
≥ 34,1 |
|
Low heating value (LHV) |
MJ/m3 |
≥ 31,0 |
|
Wobbe index |
|
|
|
- nominal |
MJ/m3 |
53,6 |
|
- the range of variation |
MJ/m3 |
45,1-57,0 |
|
Hydrogen sulfide content |
mg/m3 |
≤ 7,0 |
|
Oxygen content |
% mol/mol |
≤ 0,2 |
|
Carbon dioxide content |
% mol/mol |
≤ 3,0 |
|
Mercury vapor content |
µg/m3 |
≤ 30,0 |
|
Dew point temperature for 8,4 MPa water from 1 April to 30 September |
ºC |
≤ +8,1 |
|
Dew point temperature for 8,4 MPa water from 1 October to 31 March |
ºC |
≤ -1,2 |
|
Hydrocarbons dew point temperature |
ºC |
0 |
|
Hydrocarbons content (which can condensate at -5 ºC and pressure which is in gas pipeline) |
mg/m3 |
≤ 30,0 |
|
Dust content ( particle diametet higher than 5 µm) |
mg/m3 |
≤ 1,0 |
|
Mercaptan sulfur content |
mg/m3 |
≤ 16,0 |
|
Total sulfur content |
mg/m3 |
≤ 40,0 |
Preliminary Supplier’s scope will be as follows:
1) Designing, manufacture, delivery, transport, commissioning supervision during erection and start up for three gas fired watertube boilers with total power ca. 390 MWt (3x130 MWt) with the parameters required by technical Specification,
2) Low emission, dual fuel burners (gas),
3) Air fans,
4) Air ducts designing,
5) Flue gas fans designing (if needed in technology) and provide a guidelines,
6) Sealing air and cooling air system,
7) Installation of boiler protection for stoppage period,
8) Execution of boiler control algorithms,
9) Delivery of all boiler sensors and drives,
10) Guidelines for circulating water pumps, gas system, compressed air system, DeNOx installation and after erection acid cleaning installation.
In Suppliers scope will be piping of boiler in range of 1 meter with suitable boiler valves and indication of terminal points in boiler.
For all inquiries, please fill in the form below (* are required) to send us a brief message, and we will get back to you as soon as possible.