Product Specifications
Product Description
This boiler has 3 vertical steam drums and a chain-grate stoker. The boiler body is composed of arch tube-sheet, threaded smoke pipe, Ba Zi smoke flue and catchment. The designed available coal type should be II type bitumite. The boiler uses 8.5 meter chain-grate stoker, which reaches 65% coverage, and 12 back rake; Air comes from both sides of the stoker in order to guarantee the coal layer could receive even ventilation. The blower pushes cool air into the air preheating machine, then the preheated air will, through the hot air flue on both sides of the boiler and the air inlet pipes of the stoker, be divided to 2 flows, and separately ascend to the boiler furnace
The original flue gas emission concentration could satisfy the national standard for the reason that the boiler has installed the threaded smoke pipe.
This boiler has strong power, 10% override ability, high thermal efficiency, its operation efficiency could reach 81% so that it is a minimal polluted, high effective and energy conserved product.
29 MW hot water boiler specification list (as table).
Remarks:
1. The parameter in the upper sheet is only for your reference, we will not inform customer the varied size and dimension due to the design and installation;
2. The coal consumption is calculated according to the coal in bulk heat rate 6000 kcal/kg;
3. The boiler exterior size is in accordance with the design drawing.
Boiler Moder
| DZL29-1.25/130/70-A II | DZL29-1.25/150/90-A II |
Boiler Name
| assembled watertube and firetube hot water boiler
| assembled water tube and firetube hot water boiler
|
Boiler structure
| single steam drum vertical chain-grate stoker
| single steam drum vertical chain-grate stoker
|
Rated thermal power
| MW
| 29
| 29
|
Working pressure
| Mpa
| 1.25
| 1.25
|
Outflow water temperature
| ºC | 130
| 150
|
Backwater temperature
| ºC | 70
|
Boiler thermal efficiency
| %
| 81
|
Area of heating surface
| Boiler body
| m 2 | 952
|
Stoker
| m 2 | 34.5
|
Flue
| Coal rank
|
| II type soft coal
|
Low-level heat rate
| kj/kg
| 17700-21000
|
Consumption
| kg/h
| 5920
|
Flue gas emission temperature
| ºC | 146
|
Original emission concentration
| Mg/Nm 3
| standard of nation
|
Flue gas blackness
|
| <1 grade
|
Dimensions
| m*m*m
| 13.1*9.2*9.7
|
Dimensions of biggest parts for shipment
| m*m*m
| 8.6*2.1*2.4
|
Weight of biggest parts for shipment
| t
| 28
|
Total boiler weight
| t
| 160
|
Water entrance nominal diameter
| mm
| 250
|
Water exit nominal diameter
| mm
| 250
|
Auxiliaries
| blast fan
| Model
| G4-73-11NO10D
|
Induced draft fan
| Model
| Y4-73-11NO14D
|
Qingdao Xingfu Boiler Thermoelectric Devices Co., Ltd. (Qingdao Happiness Boiler Thermoelectric Devices Co., Ltd. )is established in 1981, located in Qingdao, one major seaport of China. We are specialized in manufacturing B level Boilers, BRI level pressure vessels and the thermal power equipment, authorized by the General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China. Our company has won several titles, namely the outstanding boiler-making enterprise, the Environments Exquisite Factory of the province, and Shandong Star Enterprise. We are also the Qingdao Enterprise with Top Credit Grade. Yuhe Happiness Boiler Co., Ltd. Has fixed asset of RMB55, 800, 000, with abundant technical force, advanced equipment, complete examination method. Moreover, our company has passed the ISO9001 International Quality System Authentication.
Our company has 380 employees, among which there are 78 (20%) technicians, 28 engineers, 136 (36%) skilled workers, and 65 qualified welders.
Qingdao Yuhe Happiness Boiler Co., Ltd has manufactured boilers, pressure vessels and boiler auxiliaries for 25 years. We have our own R&D center, develop and invent lots of new products and new technology. The new type threaded line pipe steam and hot water boilers obtain universal praise from customers. Moreover, in recent years, our company has developed the CWM coal water mixture boiler, which is of low cost, environment protected, and energy conserved. It has been approved by the Provincial Environment Department.
Furthermore, our company can make boiler auxiliaries for large-scale power plants from 300, 000kW to 600, 000kW generators, and has become the major boiler auxiliary supplier in Shandong Province.
