Horizontal coal-fired hot water heating boiler

NegotiableUpdate on 03/08

Model

Nature of the Manufacturer: Producers

Product Category

Place of Origin

Online Consult

Overview

Product Introduction:

Product Details

卧式燃煤热水取暖锅炉.jpg

The DZL boiler is a horizontal three return water fire tube boiler. There are rows of water-cooled wall tubes on both sides of the furnace, and two sets of tube bundles are arranged inside the drum to form two return loops. This type of boiler has sufficient heating surfaces and is equipped with tail heating surface economizers. Equipped with drums and induced draft fans for mechanical ventilation. Layered combustion. Coal has a wide adaptability and good smoke reduction effect. Equipped with a medium resistance high-efficiency cyclone dust collector, the smoke and dust emission concentration meets the environmental protection requirements of Class II areas. The smoke passes through the combustion chamber at the upper part of the rear arch, and then enters the front smoke box through the smoke chamber of the rear shed. It is then folded into the second beam from the front smoke box to the rear smoke box, and is drawn into the flue, dust collector, and chimney by the induced draft fan before being discharged into the atmosphere. The boiler has a high level of automation, with automatic adjustment of boiler feedwater, high and low water level alarms, low water level interlock protection, and interlock protection for the intake and exhaust fans. Complete supporting auxiliary equipment.

◆ Product Usage:

Industrial sector: Supply of steam for thermal power plants, shipyards, precision instrument manufacturing plants such as petrochemicals, pharmaceuticals, biotechnology, baking and other processes in the food industry; Places in the factory that require hot water.

Life field: steam usage in hotel laundry rooms, steam disinfection of hospital equipment, steam usage in canteens, saunas and beauty salons; Residential areas, schools, office buildings, hotels, and other places that require heating; Hot water supply such as hotel baths.

Performance advantages

This product is mature, progressiveness, stable, reliable and economical.

1. Maturity: One of the earliest manufacturers in China to produce coal-fired quick installation threaded tube boilers; Automated coal-fired threaded tube boiler, filling the gap in domestic coal-fired threaded tube steam boilers; Over the past decade, the product has undergone multiple updates and upgrades, becoming more mature. More than 6000 units of similar products have been produced.

2. Progressiveness: adopt a number of advanced technologies, such as threaded tube, furnace intensive combustion; DZH coal-fired boilers have won multiple product honor certificates from the state and the Ministry of Machinery Industry;

3. Stability: The boiler runs smoothly with a low failure rate and no major safety accidents have occurred; The longest operating time of early boilers has been over 20 years.

4. Reliability: The only boiler manufacturer in China that has undergone 200000 fatigue tests on shell boilers;

Our company is a designated industrial boiler export base for the Ministry of Machinery. Since 2000, oil and gas boilers have been exported to 17 countries including Pakistan, Bangladesh, Myanmar, Thailand, Iran, Algeria, Syria, Nigeria, Kazakhstan, Libya, Guinea, Indonesia, Yemen, Mozambique, Vietnam, Cambodia, and Hong Kong.

5. Economy: High thermal efficiency, fuel saving, good economy; Rated as an energy-saving product by the National Economic and Trade Commission and the Henan Provincial Environmental Protection Bureau.

Technical Parameter

Model Parameters		DZH0.7-0.7 /95/70-AⅡ	DZH1.4-0.7 /95/70-AⅡ	DZH1.4-1 /115/70-AⅡ	DZH2.8-0.7 /95/70-AⅡ	DZH2.8-1 /115/70-AⅡ
Rated thermal power MW		0.7	1.4	1.4	2.8	2.8
Rated outlet pressure MPa		0.7	0.7	0.7	0.7	0.7
Rated outlet water temperature ℃		95	95	95	95	95
Rated inlet water temperature ℃		70	70	70	70	70
Circulating water volume m3/h		24	40	40	96	96
Heating surface area of boiler m2		32.4	59	59	114.6	114.6
Effective area of grate m2		2.1	3.2	3.2	4.9	4.9
Main water volume m3		3.6	6.5	6.5	9.2	9.2
Boiler efficiency%		＞76	＞78	＞78	＞79	＞79
Applicable fuel		Class II bituminous coal
Fuel consumption Kg/h		170	335	335	656	656
Maximum transport size M		5.2×2.1×2.9	5.7×2.6×3.4	5.7×2.6×3.4	6.3×2.7×3.6	6.3×2.7×3.6
Maximum weight of transported item T		13	21	21	23	23
After installation, the external dimensions are M		5.3×3.9×4.2	6×3.85×5	6×3.85×5	7×4×5	7×4×5
Induced draft fan	Model	GY1-18 4# Right 0 °	GY2-18 4# Right 0 °	GY2-18 4# Right 0 °	GY4-18 4# Right 0 °	GY4-18 4# Right 0 °
	Air volume m3/h	4000	7000	7000	13000	13000
	Wind pressure Pa	2544	3340	3340	3724	3724
	Motor power Kw	5.5	11	11	22	22
blower	Model	4-72-3.2A Right 315 °	GG2-11 Right 225 °	GG2-11 Right 225 °	T4-72 4.5A Right 315 °	T4-72 4.5A Right 315 °
	Air volume m3/h	1630-3600	3700	3700	5780-10010	5780-10010
	Wind pressure Pa	637-1020	921	921	2539-1618	2539-1618
	Motor power Kw	2.2	3	3	7.5	7.5
Make-up water pump	Model	1W2.4-10.5	JGGC2-90/10	JGGC2-90/10	JGGC4-88/11	JGGC4-88/11
	Flow rate m3/h	2.4	2	2	4	4
	Head M	105	90	90	88	88
	Motor power Kw	3	1.5	1.5	2.2	2.2
Dust collector model		XTD-1	XTD-2	XTD-2	XTD-4	XTD-4

Working principle

Arrange a bundle of threaded smoke pipes inside the drum. There are light tube water-cooled walls installed on both sides of the furnace. Adopting a lightweight block grate, equipped with a blower and induced draft fan for mechanical ventilation.

After the fuel falls onto the grate and is fully burned in the furnace, the flame enters the rear of the main body through the flue gas channel in the middle furnace wall. It then turns from the two sides of the combustion chamber to the front smoke box, and then returns to the boiler tube bundle from the front smoke box. It enters the dust collector through the rear smoke box and is then drawn by the induced draft fan through the flue to the chimney and discharged into the atmosphere