Brännare. Kokare

Kommittébeteckning: SIS/TK 285 (Pannanläggningar)
Källa: CEN
Svarsdatum: den 14 apr 2020
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This document specifies the requirements for safety devices against excessive pressure in water-tube boilers as defined in EN 12952-1:2015.

Kommittébeteckning: SIS/TK 285 (Pannanläggningar)
Källa: CEN
Svarsdatum: den 14 apr 2020
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This document applies to atmospheric fluidized-bed and grate firing systems of steam boilers and hot water generators. These systems commence at the fuel bunkers and end at the ash extraction plant. For combination of various firing systems, the individual requirements of each system apply, especially those included in prEN 12952-8:2020 and prEN 12952-9:2020.

If several fuels are burnt simultaneously or if a fuel quality varies considerably (e.g. moisture content), additional safety measures may be necessary, especially with respect to limitation of the fuel flow into the firing system and ensuring proper air supply to the individual fuels.

Pressurized firing systems may require enhanced safety measures, which are not given in this European Standard.

Kommittébeteckning: SIS/TK 298 (Konstruktion, tillverkning och kontroll av tryckbärande anordningar)
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Svarsdatum: den 14 apr 2020
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This document specifies requirements for the workmanship and construction of water-tube boilers as defined in EN 12952-1:2015.

Kommittébeteckning: SIS/TK 298 (Konstruktion, tillverkning och kontroll av tryckbärande anordningar)
Källa: CEN
Svarsdatum: den 14 apr 2020
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This document specifies requirements for the inspection during construction, documentation and marking of water-tube boilers as defined in EN 12952-1:2015.

Kommittébeteckning: SIS/TK 285 (Pannanläggningar)
Källa: CEN
Svarsdatum: den 14 apr 2020
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1.1 Firing systems

This document specifies requirements, for liquid and gaseous fuel firing systems of steam boilers and hot water generators as defined in EN 12952-1:2015.

These requirements also apply to firing systems of chemical recovery boilers (black liquor boilers) with the additions and amendments specified in Annex A of this document.

These requirements also apply to gas turbines in combination with fired/unfired heat recovery steam generators with the additions and amendments specified in Annex B of this document.

NOTE 1 This standard is not applicable to coil type boilers (flash boilers/small boilers) that use burners in accordance with EN 12953-7 apply for single burner installations.

NOTE 2 This standard is not applicable to the storage of liquid fuels and to transfer stations of long-distance gas pipelines.

1.2 Fuels

This document specifies requirements, which cover the use of liquid and gaseous fuels as defined in this standard. Fuels deviating from standardized commercially available types may require additional or alternative safety measures. For black liquor these safety measures are given in Annex A.

Kommittébeteckning: SIS/TK 285 (Pannanläggningar)
Källa: CEN
Svarsdatum: den 14 apr 2020
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1.1 Firing systems

This document applies to pulverized fuel firing systems of steam boilers and hot water generators and commences at the filling equipment for the boiler bunkers or for the pulverized fuel storage system and ends at the ash extraction plant. For multifuel firing systems using separate or combined burners, these requirements apply to the pulverized fuel firing part involved. For other fuels or firing systems used in combination, other requirements apply e.g. prEN 12952-8:2020.

1.2 Fuels

These requirements cover the use of pulverized fuels (e.g. coke, anthracite, bituminous coal or hard coal, lignite or brown coal, petrol coke, oil shale and pulverized bio mass) ranging from low to high volatile matter content.

1.3 Operation

Requirements for operational equipment apply for steam boilers and hot water generators with permanent supervision by properly trained persons.

As firing systems using pulverized fuel may be designed either as direct-firing or as indirect-firing systems, operational requirements have to be differentiated. Annex A summarizes the operational requirements for firing systems including the pulverizing system.