Ydb 350 700 1050 1400 2100 2800 3500 4200 Kw Condensing Gas Hot Water Boiler

Product Description

Product Description

The YDB ultra-low nitrogen premixed condensing hot water boiler unit is a low-nitrogen premixed gas integrated hot water boiler jointly developed by Henan Yuanda Boiler Corporation Ltd. and the School of Energy and Power of Xi'an Jiaotong University.

The expert team of Xi'an Jiaotong University conducted a large number of calculations, simulations and emulations through computers, and then conducted repeated tests through the gas combustion test platform of Yuanda Boiler. They created a unique "comb-type" burner structure, highly coupled the burner and the boiler, and then made comprehensive use of air cooling and water cooling technology to make the unit's nitrogen oxide emissions less than 30mg under all working conditions.
The ultra-low nitrogen premixed condensing hot water unit has multiple functions such as heating hot water and sanitary hot water, and can provide multiple hot water according to user requirements. The boiler combustion chamber structure adopts a full-membrane wall natural circulation water tube single-return structure. The unique water tube single-return structure has a more compact water tube arrangement and a high flue gas heat transfer coefficient. The normal operating water volume of the boiler is only one-third of that of the fire tube boiler, and the boiler heats up faster. The boiler adopts post-premixed combustion technology, and a combination of air cooling and water cooling to reduce the flame temperature and achieve ultra-low nitrogen emissions.

(1) The boiler operates under negative pressure, without explosion risk:

(2) The burner adopts post-pre-wetting combustion, and no deflagration will occur:

(3) The special combustion head has a double anti-backfire structure and does not backfire;

(4) The valve group has an automatic leak detection function;

(5) It has multiple over-humidity and over-pressure interlocking protection such as outlet water temperature, boiler water temperature, exhaust gas temperature, and furnace body pressure;

(6) The ultimate mechanical explosion-proof device automatically opens when the set pressure is exceeded.

Product Parameters

Boiler capacity	*104kcal	30	60	90	120	180	240	300	360	480	600	900	1200
	kw	350	700	1050	1400	2100	2800	3500	4200	5600	7000	10500	14000
Power distribution	KW	2.2	3	4	4	5.5	7.5	11	15	18.5	22	37	55
Gas consumtion	m3	33	67	100	133	200	266	333	401	532	665	998	1330
Combustion adjustment method		Electronic proportional regulation
Thermal efficiency	>105%
Output/Return water temperature	Vacuum	80/60  60/50
	Normal pressure	60/50

 

Our Advantages

 

1. High thermal efficiency--Save gas consumtion.
The burner can operate stably at a low excess air coefficient. It adopts air preheating and condensation heat exchange technology, with a lower exhaust temperature and a thermal efficiency of up to 109%.

 

2.Ultra-low nitrogen emission--Environmental friendly.

NOX emissions under all operating conditions are less than 30mg, fully applicable to the most stringent emission standards.

 

3.Integrated design of boiler control and burner control--More convenient and intelligent.

The burner adopts electronic proportional adjustment, which is simpler to operate and more convenient to use. The controller has functions such as circulation pump control, timing function, and climate compensation.

 

4.More safety measures, no explosion safety risks--Safty.

It has multiple over-temperature and over-pressure interlocking protections such as outlet water temperature, boiler water temperature, exhaust gas temperature, furnace pressure, etc.

 

Our service

Pre-sale Service:
1.Free boiler system solution for your project.
2.Free boiler operation cost solution.
3.Free Boiler room design. 

On-sale Service:

1.Timely Feedback on Production Status of Boiler & Auxillary Equipment with pictures and vedio;

2.Cooperate with client or third-party testing agency to inspect goods;

3.Provide detailed delivery list and quantity&weight&dimension.

4.Arrange shipping with our stable cooperate shipping if client have need.

5.Provide a full set of boiler factory documents (shipped with the goods):
General drawing;Boiler body drawing;Installation drawings; Foundation drawings; Installation and operation instructions;Summary table of strength calculation of pressure components;Quality certificate and Inspection certificate.
 

After-sale Service:

1.One year warranty with lifelong service.

2.Provide engineer abroad installation and commissoning service. 

3.Provide boiler operator training service.

4. Provide boiler repair and maintenance services.

5.Provide original parts service.

Company Profile

Henan Yuanda Boiler Corporation Ltd, established in 1956. It is one of the leading boiler manufacturers which first obtained China boiler manufacturing license. We have A Class boiler license, D Class pressure vessel license and boiler installation, commissioning & maintenance license. Our company participated in drafting several national boiler standards, and has more than 60 patents.We have ISO9001: 2015 Quality Management, ISO14001: 2015 Environmental Management, OHSAS18001:2007 Occupational Health And Safety Management System Certificates. In the past few years, we were awarded the "Civilized and Honest Enterprise" many times.we are a high-tech enterprise integrating R&D, manufacturing, sales and service.

We have ASME certificate for United states, Canada,Australia,Malaysia,Singapore,South Africa,etc; CE certificate for EU countries and EAC certificate for Russia, Uzbekistan, Kazakhstan, Kyrgyzstan,etc. Till now, our products have exported to 130+ countries all around the world. Our projects cover a variety of industries,such as food & beverage factory, textile & garment factory, chemical factory, Paper & packaging factory,hospitals, hotels,etc.

For more than 60 years, our company is committed to R&D and production of low-nitrogen, energy saving and intelligent boilers. We have the independent intellectual property rights of the boiler internet of Things DCS Data System. We Consists of special business Dept including technology center, manufacturing center, intelligent automation control center, engineering installation & maintenance service center, worldwide marketing center,and contract energy management center. Among them, our engineers has serviced 50+ countries abroad.

Our company keep the business philosophy of "Quality Oriented, Sincerity Promoted" to create greater value for customers and make greater contributions to the society.
Company Target : Be Century-old Enterprise, Create International Brand!

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