The automatic condensing oil gas steam boiler is a quick-loading horizontal internal combustion three-return fire tube structure. The wet back arrangement of the offset furnace is adopted, and the high-temperature flue gas successively washes the second and third return flue pipes, and then drains into the atmosphere through the chimney from the rear flue chamber. The boiler is equipped with world famous burners, and adopts automatic proportional adjustment of combustion, automatic adjustment of water supply, and procedures

Working principle

1, three return structure: the international popular shell type three return, full wet back structure, combustion chamber large volume design, so that the combustion more fully. The fuel is burned under positive pressure in the furnace, and the high temperature flue gas enters the flue tube bundle by turning 180° along the back of the furnace through the recombustion chamber, enters the second tube bundle by turning 180° through the pressure front flue box, and enters the atmosphere after convection heat transfer.
2, corrugated furnace: the combustion chamber adopts the whole corrugated furnace structure, which not only strengthens the disturbance of flue gas, but also increases the radiation heat transfer area; It not only increases the stiffness of the furnace, but also effectively weakens the expansion stress of the furnace. It not only enhances the heat transfer effect, but also promotes the combustion of fuel in the furnace.
3, unique welding process of smoke pipe and tube plate: the advanced process of pre-expansion and then full welding, and then expansion, not only prevents pipe gap corrosion, but also enhances welding strength; The threaded smoke pipe with high heat transfer coefficient is used to strengthen the convective heat transfer effect, reduce the exhaust temperature and improve the thermal efficiency of the boiler.

4、Symmetrical adjustable hinged front and rear smoke doors: easy to open, easy to repair and clean.

5、 the boiler adopts wet back structure, full edge butt weld, high reliable performance, low maintenance cost.

6、the design of the rear view device, easy to observe the combustion situation.

7、design over temperature, over pressure, water shortage, leak detection, flameout and other protection functions, boiler operation is safe and reliable.

Item\Model		Automatic Oil Gas Fired Steam Boiler
Rated steam capacity (Ton/h)		4	6	8	10	15	20	25	30	35
Rated steam pressure MPa		1.25/1.6/2.5
Rated steam temperature ℃		194/203/225/400
Design efficiency %		92.26	92.23	92.22	92.26	92.26	91.99	91.82	91.99	92.17
Feed water temperature ℃		20	105	105	105	105	105	105	105	105
Available fuel		Diesel, heavy oil, natural gas, LPG, city gas, fuel oil, CNG, etc
Fuel consumption	Diesel kg/h	267.45	402.68	535.2	668.6	1002.6	1337.3	1671.6	2005.9	2336.8
	Natural gas Nm3/h	329.4	425.9	567.9	709.6	1064.3	1418.4	1773.1	2127.6	2477.4
Overall dimension	Length m	5.2	5.9	7.2	7.8	8.5	9.2	11.4	11	11.2
	Width m	2.7	2.7	3.4	3.4	3.6	3.7	3.7	3.9	4.6
	Height m	3.2	3.2	3.5	3.6	3.6	3.7	3.8	4.6	5.2

Item\Type		Automatic Vertical Electric Heating Steam Boiler
Rated heat capacity kw		36	75	144	216	360
Rated steam capacity t/h		0.05	0.1	0.2	0.3	0.5
Rated working pressure MPa		0.4	0.4/0.7	0.4/0.7	0.7	0.7
Power * class number  Kw * n		12*3	15*5	24*6	24*9	24*15
Saturated steam temperature °C		154	154/170	154	154/170	170
Designed thermal efficiency (%)		≥98
Rated operational voltage		~ 380 V
Mode of connection		three-phase three-wire system
Steam caliber DN		20	25	40	40	50
Inlet diameter DN		20	25	25	25	25
Safe valve diameter DN		25	40	40	40	40
Blowdown valve diameter DN		25	40	40	40	40
Boiler Weight Kg		160	220	420	500	1980
Outlook size	Length mm	700	890	1180	1220	1916
	Width mm	470	700	960	980	1336
	Height mm	1250	1310	1470	1520	2700

The automatic horizontal electric heating steam boiler adopts the separation mode of the furnace body electric control cabinet, which avoids the influence of the service life of the electrical components due to heat aging. The electric heat pipe uses domestic and foreign high-quality products, the normal service life is about 20,000 hours, the thermal efficiency is nearly 99%, the operation is quiet, clean, meets the requirements of environmental protection, and will not emit NOx (nitrogen oxides) to the atmosphere. The operation adopts PLC control system, free operation button, free indicator light, touch screen panel, Chinese and English display, man-machine dialogue, operation authorization, real-time information, automatic page turning.
All electrical components have CE and CCC certification marks to ensure product safety and service life.
Each group of electric heating elements is connected by a concentrated beam type flange, independent setting, with simple structure, high mechanical strength, safe and reliable, easy to replace, long service life and so on.
With large steam space, good steam quality;
Electromechanical separate installation, electronic control components away from heat source, favorable heat dissipation. Can be used in parallel with single or multiple units.
PLC microcomputer programmable control and display screen; Through the man-machine interface to achieve temperature setting automatic control of water temperature. The display screen can display the equipment status, operation parameters and fault alarm.

Performance advantage

1, with large steam space, steam quality is good.
2, automatic intelligent control technology, no need for special duty. Flexible working mode, can be set to manual or automatic
3, according to the need to set the automatic operation period of the boiler, can be set a number of different working periods, so that the boiler automatically time-sharing start each heating group, heating group cycle change, so that the use of the contactor time, frequency is the same, improve the service life of the equipment.

4，The controller automatically controls, calculates and tracks the pressure. It can automatically start and stop the feed pump and electric heating pipe when the load changes, and can also be manually controlled.
5, with a complete number of protection functions, leakage protection, water shortage protection, grounding protection, steam overpressure protection, overcurrent protection, power protection, boiler automatic protection, safe home.
6, the boiler body is made of boiler steel plate, the longitudinal and girth welds of the furnace body are automatically welded, and X-ray flaw detection is carried out, the small boiler furnace body and mechatronics are easy to install and connect; Large boiler furnace body and electronic control body separate design, prevent the electrical control part affected by the high temperature of the furnace body, ensure the stable operation of the electronic control device.
7, compact structure, scientific and reasonable design and advanced manufacturing technology, so that the boiler occupies a small space, convenient transportation and save the use of space.
8, no noise, no pollution, high thermal efficiency, boiler body using high quality and efficient insulation materials to do heat preservation, small heat dissipation, energy saving and consumption reduction.
9, all electrical components with CE and CCC certification mark to ensure product safety and service life.
10, advanced circuit design, well-made wiring neat and reasonable, the operation is very convenient.
11, the electric heating pipe and the furnace body using flange link, easy disassembly, easy maintenance.
12, with automatic water supply, water shortage, over temperature, over pressure, automatic power and alarm, leakage protection and other safety protection system.
13, PLC microcomputer programmable control and display screen; Through the man-machine interface to achieve temperature setting automatic control of water temperature, the display screen can display equipment status operating parameters and fault alarm.