A containerised boiler room (KK) is a transportable source of saturated or superheated steam for heating and technological purposes. It can be used as a source of heat for both centralised and decentralised heating and as a source of steam for technological purposes. It is of special advantage at sites where it is necessary to install a heat source in a short time. The boiler room installation requires minimum space and minimum site preparation, minimum electrical installations and system of measuring and control. The standard boiler room modification is supplied with a burner for burning gaseous fuels. The boiler room may be fitted with the equipment for steam-boiler plants operating without constant supervision according to TRD 602 and TRD 604.
Technical Specifications
A containerised steam boiler room is completely fitted with machinery and electrical equipment housed in a transportable container. The boiler room includes a water treatment plant with a corresponding capacity of treated and thermally deareated water with regards to the respective rate of the condensate-return. (In the standard modification, the water treatment plant is designed for 80 % condensate-return). The boiler room is fitted with the respective electrical installations and system of measuring and control for automated operation. The set also includes a self-supporting steel chimney. MKJ modules with co-generating units based on gas engines or diesel generator sets or MPTG modules with steam turbo-generators, added to the containerised boiler room, generate power to be supplied into the distribution network or used to supply the boiler room operation in the case of non-stable electricity supply or at locations without access to the electricity supply system. MKJ modules displayed in the following chart are added to the boiler rooms to assure the boiler room "island" operation. Waste heat arising during the operation of these units can be used for heating utility water or within the heating system. The unit is supplied in a separate container of the same type. The supply includes a gas regulating station and condensation water heating system. The outputs given in the basic technical data table (see below) range up to 10 000 kg/hr. The company, however, is able to supply boiler rooms with outputs up to 30 000 kg/hr. These boiler rooms, in their turn, are not housed in unified containerised modules, but they are transported to the operation site in pieces, in separate module containers, where they are assembled into one block. Boiler rooms may be supplied as low-pressure steam or hot water boiler rooms within the entire output range.
Boiler Room Modulation
The required thermal power unit may be obtained by combining individual containerised boiler rooms of a modular system (see below).
S
upply and Storage
A containerised boiler room is supplied as a unit, including a case (boiler, water treatment plant, system protection, operating heavy current wiring, system of measuring and control) and a container with a co-generating unit, including a self-supporting steel chimney. To facilitate transport, the chimney is supplied in dismantled state, in sections approximately 6 m long.
Testing and Certification
Transportable boiler rooms are designed and produced according to CSN standards in force, and the boiler holds a certificate of approved design, issued by the Safety Standards Inspectorate. The construction and the first pressure test in accordance with CSN 070623 are performed in a production plant, and the result is recorded in an inspection book, which is part of the technical documents supplied with the boiler room, together with a certificate of tests carried out on materials used in accordance with CSN 420090.
Technical Parameters
| KK boiler room | Units | KK 1000 | KK 2000 | KK 4000 | KK 5000 | KK 6000 | KK 8000 | KK 10000 |
| Steam boiler room rated output | kg/hr | 1000 | 2000 | 4000 | 5000 | 6000 | 8000 | 10000 |
| Number and type of boilers (unit without 100% back-up) |
ks | KU 1000 | KU 2000 | KU 4000 | KU 5000 | KU 4000 KU 2000 |
KU 4000 KU 4000 |
KU 5000 KU 5000 |
| Maximum steam overpressure | MPa | 0,9; 1,4 ; 1,8; | ||||||
| Minimum steam overpressure | MPa | 0,2 - 0,5 | ||||||
| Rated temperature of overheated steam | °C | up to 450°C | ||||||
| Boiler efficiency: Natural gas / LO | % | 91/89 | ||||||
| Boiler efficiency with economiser Natural gas /LO |
% | 92÷94,5/91÷93 | ||||||
| Rated temperature of feed water | °C | 105 | ||||||
| Temperature of sucked air | °C | 20 | ||||||
| Maximum fuel consumption - Natural gas - LO |
Nm3/h kg/hr |
76,7 68,7 |
154 137 |
300 275 |
375 354 |
466 412 |
621 550 |
776 688 |
| Maximum of air for combustion (lambda=1.1) | Nm3/h | 860 | 1720 | 3400 | 4250 | 4900 | 6500 | 8125 |
| Maximum amount of flue gases | Nm3/h | 970 | 1940 | 3880 | 4850 | 5820 | 7760 | 9700 |
| Electrical wiring | 3 x 380V/50Hz | |||||||
| Installed capacity for electrical appliances | kW | 14 | 15 | 25 | 18 | 25 | 28 | 30 |
| Total boiler room power input | kW | 25 | 28,5 | 53 | 46 | 53 | 56 | 58 |
| Emissions | ||||||||
| Natural gas - standard / low emission | mg/Nm3 | NOx - 160, CO - 100 / NOx - 100, CO - 100 | ||||||
| LO | mg/Nm3 | NOx - 450, CO - 175, SO 2 - 1000, solid substances - 100, smoke rate < 2 | ||||||
| KK boiler room weight | ||||||||
| Total weight | kg | 12000 | 15000 | 19000 | 20000 | 32000 | 35000 | 50000 |
| Operating weight | kg | 18000 | 20000 | 24000 | 30000 | 55000 | 62000 | 70000 |
| Water condensation recovery rate | % | Min. 50 | ||||||
| MKJ module with co-generating unit for combined production of electricity and heat | ||||||||
| MKJ module | - | MKJ45 | MKJ45 | MKJ75 | MKJ75 | MKJ75 | MKJ75 | MKJ75 |
| Power output per unit | kW | 45 | 45 | 75 | 75 | 75 | 75 | 75 |
| Thermal output per unit | kW | 80,5 | 80,5 | 125 | 125 | 125 | 125 | 125 |
Emission relate to 3% of O2 in dry combustion products at t = 0°C and barometric pressure.
The given emission levels may be maintained only provided that the liquid fuel contains (except for values according to CSN 656506) maximally: S < 5 000 mg/kg, N < 1 000 mg/kg, asphaltenes < 3 %.
Boiler room with outputs of 12 000 – 30 000 kg/hr are designed individually on request.
Containerised Steam Boiler Rooms KK 200 - 5000 kg/hr
Containerised Steam Boiler Rooms KK 6000 - 10000 kg/hr
