Wood gasification boilers

Gasifying boilers for wood
Gasifying boilers for wood

Gasifying boilers for wood

The boilers are constructed for burning wood on the principle of generator gasifying with the use of a gas exhaust ventilator, which withdraws the combustion gases from the boiler, or leads air into the boiler.

The boiler body is produced as a weldment of 3-8 mm steel sheets. They comprise the fuel hopper, which is equipped at the bottom with a heatproof pipe fitting with longitudinal hole for the combustion gases and passage of gases. The burnout part of the multiple chamber furnace under the fuel hopper is equipped with ceramic pipe fittings. There is a vertical combustion gas duct in the back of the boiler body, which is equipped with a heating valve in the upper section. The upper part of the combustion gas duct is fitted with a gas exhaust outlet for connection to a chimney.

Adventages of Wood Gasification Boilers ATMOS

  • Option to burn large pieces of wood
  • Primary and secondary air is also preheated to a high temperature - higher effectiveness
  • The ventilator automatically switches off when the fuel burns out.
  • Easy servicing and cleaning
  • Ceramic combustion space - high effectiveness
  • Large fuel container
  • Large space for ash (when burning wood you have to clean it once per week)
  • Boiler without tube plate - easier cleaning
  • Small size and low weight
  • High quality

ENVIRONMENT

Reverse combustion and a ceramic combustion chamber enable perfect combustion with minimum polluting emissions. The boilers comply with environmentally-friendly product requirements according to Guideline No. 13/2002 of the Czech Ministry of Environment. They comply the European Standard EN 303-5 and all the boilers rate in class 3.

INSTALLATION

ATMOS boilers must be connected via the LADDOMAT 21 or ESBE thermoregulation valve to achieve keeping the minimum temperature of water returning to boiler at 65°C. The temperature of water exiting the boiler must be permanently kept between 80 - 90°C. The default configuration of all boilers includes a cooling circuit to prevent overheating. We recommend installing boilers with accumulation tanks.

CERTIFICATION

All ATMOS boilers are certified in testing laboratories for the individual countries of destination: State Testing Laboratory Brno, TÜV Munich - Germany, Lithuania, Ukraine, Sweden, Poland, Austria, Slovakia, Hungary according to current standards - EN 303-5.
Protected by patent.

 

The boilers ATMOS Generator DC 20GS, DC 25GS, DC 32GS and DC 40GS, are completely new types of boilers for wood. They are true LCV-generators.

ATMOS Woodgas
DC 18 S, DC 22 S, DC 25 S, DC 32 S,
DC 40 SX, DC 50 S
ATMOS Woodgas

ATMOS Generator
DC 20 GS, DC 25 GS, DC 32 GS, DC 40 GS,
DC 50 GSX, DC 70 GSX
ATMOS Generator

 

View of top feeding chamber
View of top feeding chamber

View of top feeding chamber
View of top feeding chamber

View of bottom feeding chamber
View of bottom feeding chamber

View of bottom feeding chamber
View of bottom feeding chamber

 
 

Exhaust vent
Exhaust vent
minimises smoke during feeding and operation of the boiler

Overheating protection cooling loop
Overheating protection cooling loop

 
 
Odtahový ventilátor
DC 100
Chladící smyčka
DC 70 S, DC 75 SE
 

 

burning of flame
in the bottom combustion chamber in spherical space
burning of flame

 

Regulation of the Boilers

Electrical - mechanical - Power is controlled with a safety valve operated with the draught regulator, FR 124 type, which automatically opens or closes the safety valve according to a set output temperature of water (80 - 90°C), (except for DC50SE) instead of this, the boiler is equipped with a BELIMO servo flap with a spring. When setting the power regulator, much attention should be paid because the regulator has another important function other than power regulation - it also secures the boiler against overheating. A controlling thermostat located on the boiler panel regulates the fan according to a set temperature (75 - 85°C). A temperature lower by 5°C should be set on the controlling thermostat rather than on the FR 124 draught regulator.
The boiler runs at a reduced output even without a fan - heating is not lost when the electric power fails. At up to 70 percent of its rated output, the boiler can be operated without a ventilator.

Boiler regulation

Boiler regulation

Panel composition:
Main off switch, safety thermostat, thermometer, regulator thermostat and combustion thermostat

Electro-mechanical regulation is an optimum solution for easy management of the operation of the boiler (ventilator).

The design of the panel with standard regulation is a basic design for all produced boilers.

Panel with electronic regulation ATMOS ACD 01

Panel with electronic regulation ATMOS ACD 01

Panel composition:
Main off switch, safety thermostat, fuse 6.3 A and electronic regulation ACD 01

Weather-compensated regulation is equipped with functions for managing operation of the boiler (ventilator), the pump in the boiler circuit, two heating circuits, warming of service water and management of solar heating.
The design of the panel with built-in electronic regulation ACD 01 is produced as a variant for boilers DC 25 S, DC 32 S, DC 25 GS.

 

Each boiler can be equipped at the customer's location with ATMOS ACD 01 electronic regulation for management of the entire heating system, depending on the outside and room temperatures. This regulation can also be managed by the boiler itself with a ventilator with many other functions.

ATMOS  Woodgas
ATMOS Woodgas
Size of feeding chamber
Size of feeding chamber
 

Gasifying boilers for wood

LEGEND OF THE BOILER DIAGRAM

1. Boiler drum 14. Fireproof and heat-resisting fitting - GS - rear face of round space
2. Filling door 15 Cleaning cover
3. Ash pan door 16 Orifice plate
4. Fan - pressure, exhaust (S) 17 Firing safety valve pull rod
5. Fireproof and heat-resisting fitting - nozzle 18 Thermometer
6. Control panel 19 Furnace orifice plate
7. Safety thermostat 20 Switch
8. Regulating safety valve 22 Power regulator - Honeywell FR124
9. Fireproof and heat-resisting fitting - furnace side - GS 23 Cooling loop
10. Fireproof and heat-resisting fitting - GS - round space L+P 24 Fan thermostat
11. Sealing - nozzles 25 V. Door panel - Sibrall
12. Fireproof and heat-resisting fitting - half-moon 26 Door sealing - cord 18 x 18
13. Firing safety valve 27 Waste gas thermostat

 

Dimensions

  DC15E DC18S DC22S DC25S DC30SX DC32S DC40SX DC50S DC70S DC20GS DC25GS DC32GS DC40GS DC50GSX DC70GSX DC75SE DC100 DC105S DC150S
A 1185 1185 1185 1185 1185 1260 1260 1260 1399 1280 1280 1280 1434 1563 1686 1487 1690 1813 1813
B 694 758 959 959 959 959 959 1160 1160 758 959 959 959 1042 1068 1487 1170 1095 1295
C 675* 675* 675* 675* 675* 678 678 678 678 678 678 678 678 678 678 774 970 1010 1010
D 690 874 874 874 874 950 950 950 1047 950 950 950 1099 997 1086 1165 1290 1459 1459
E 150 (152) 150 (152) 150 (152) 150 (152) 150 (152) 150 (152) 150 (152) 150 (152) 180 150 (152) 150 (152) 150 (152) 150 (152) 150 (152) 180 180 200 200 200
F 65 65 65 65 65 69 69 69 90 69 69 69 69 70 58 82 80 129 129
G 208 208 208 208 208 185 185 185 325 185 185 185 185 184 184 194 590 721 721
H 933 933 933 933 933 1008 1008 1008 - 1008 1008 1008 1152 1287 1407 1230 - - -
CH 212 212 212 212 212 256 256 256 0 256 256 256 256 256 256 306 0 0 0
I 212 212 212 212 212 256 256 256 240 256 256 256 256 256 256 306 330 307 307
J 6/4" 6/4" 6/4" 6/4" 6/4" 6/4" 6/4" 2" 2" 6/4" 6/4" 6/4" 2" 2" 2" 2" 2" 2" 2"

* boiler width is 555 mm after disassembling the side hoods 

Type
ATMOS
DC15E DC18S DC22S DC25S DC30SX DC32S DC40SX DC50S DC70S DC20GS DC25GS DC32GS DC40GS DC50GSX DC70GSX DC75SE DC100 DC105S DC150S
Boiler output (kW) 14,9 20 22 25/27 30 35 40 49,9 70 20 25 32 40 49 70 75 99 105 150
Required chimney draught (Pa) 18 20 23 23 24 24 24 25 30 20 23 25 25 25 30 30 35 25 25
Boiler weight (kg) 280 269 324 326 332 366 368 433 515 343 431 436 485 538 571 669 820 901 1030
Water volume (l) 45 45 58 58 58 80 80 89 93 64 80 80 90 120 132 190 294 265 306
Fuel container volume (dm3) 66 66 100 100 100 140 140 180 180 87 125 125 170 210 210 345 400 300 400
Max. length of wood (mm) 330 330 530 530 530 530 530 730 730 330 530 530 530 530 530 1000 730 550 750
Typ. consumption in season (m3) 15 20 22 25 30 35 40 50 70 19 25 32 40 50 70 75 99 105 150
Required fuel (preffered)

Dry wood with specific energy 5 - 18 MJ/kg, diameter 80 - 150 mm, 12 - 20% water contents

Min. return water temperature 65 °C
Efficiency (%) 80,4 % 83,3 % 85,4 % 89,9 % 89,9 % 88,9 % 88,9 % 85,7 % 86,3 % >89 % 88,8 % 89,3 % 86,4 % 90,6 % 85,2 % 83 % 89 % 92 % 90,3 %
Boiler class ČSN EN 303-5 3 4 4 5 5 5 5 4 3 5 5 5 4 5 4 3 5 5 5
Energy efficiency class A+ A+ A+ A+ A+ A+ A+ A+ A+ A+ A+ A+ A+ A+ A+ A+ A+ A+ A+

 

Attention! The DC15E boiler is not equipped with a ventilator!
Boilers DC70S and DC100 are equipped with a blowing ventilator.