Double drums coal fired hot water boiler
SZL water tube shop-assembled (assembled) boiler has 2 vertical steam drums, and the innovative horizontal cyclone-fired combustion chamber, which could effectively enhance the thermal efficiency and reduce the flue gas emission concentration. The flue gas emissionconcentration is lower than 100 mm/nm3, the flue gas blackness is lower than Ringelmann level 1, which enables the boiler to be used in the first-class environment protected area. The boiler installs one cast iron economizer at its afterbody, the fire-gate applies the chamber-segregated ventilation structure, which is easy to adjust. The separate-layer coal supply device could be chosen according to the customer requirement. Advantages of such boiler are: Strong power, high thermal efficiency, 110% override capability, compactly designed, small floor area. Customers appreciate its safely operated, investment conserved, and broadly fuel adapted capability most
| Item/ parameter/ model | SZL4.2-1.0/95/70-AII | SZL5.6-1.0/95/70-AII | SZL7.0-1.0/95/70-AII | SZL10.5-1.25/150/90-AII | SZL14-1.25/150/90-AII |
| Rated evaporation capacity | MW | 4.2 | 5.6 | 7 | 10.5 | 14 |
| Operation pressure | Mpa | 1 | 1 | 1 | 1.25 | 1.25 |
| Steam temperature | C | 95 | 95 | 115 | 150 | 150 |
| Water-inlet temperature | C | 70 | 70 | 70 | 90 | 90 |
| Boiler heating efficiency | % | 78 | 79.6 | 78.7 | 80.8 | 81.7 |
| Area of boiler heating surface | m2 | 154 | 175 | 234 | 471 | 578 |
| Area of stoker | m2 | 7.15 | 8.6 | 11.72 | 16.4 | 18.9 |
| Fuel | Coal available | | II type bitumite,low heat capability 17700-21000KJ/KG |
| Consumption | kg/h | 900 | 1280 | 1450 | 2460 | 3240 |
| Water entrance and exit diameter | m | Pn1.6 Dn150 | Pn1.6 Dn200 | Pn1.6 Dn150 | Pn1.6 Dn200 | Pn1.6 Dn200 |
| Dimensions of biggest parts for shipment (L x W x H) | mm | 7.62x3.27x3.46 | 8.82x3.34x3.46 | 7.78x3.38x3.53 | 9.05x3.35x3.69 | 10.59x3.35x3.69 |
| 8x3.5x2.7 |
| Weight of biggest parts for shipment | t | 31 | 45 | 27.2/22.3 | 24 | 27 |
| Overall dimensions of boiler assembled (L x W x H) | m | 8.4x4.9x3.92 | 9.38x3.34x3.46 | 9.8x5.2x6 | 12.3x5.3x7.2 | 14.22x5.3x8.04 |
| Total boiler weight | t | 36 | 48 | 74.3 | 108 | 116 |
| Circulating water pump | model | | IS125-100-200B | IS125-100-200 | IS200-150-315 | | |
| flow | M3/H | 172 | 200 | 240 | | |
| lift | M | 37 | 50 | 37 | | |
| Motor power | KW | 30 | 45 | 55 | | |
| Blast fan | Model | | G6-41-13 No7.1A | G6-41-13 No8.5A | G6-41-13 No6.5A | TG15-1 | TG20-1 |
| Ventilation | m3/h | 5349-10354 | 9369-18137 | 9369-18137 | 23000 | 32079 |
| Wind pressure | Pa | 2270-1697 | 2536-3391 | 2535-3391 | 1960 | 2559 |
| Motor Power | KW | 7.5 | 18.5 | 18.5 | 18.5 | 30 |
| Induced draft fan | Model | | Y6-41-13 No10C | Y6-41-13 No11.2C | Y6-41-13 No11.20C | TY15-2 | TY20-2 |
| Ventilation | m3/h | 32144-16604 | 41773-21578 | 41773-21578 | 40000 | 54900 |
| Wind pressure | Pa | 2575-3444 | 2764-3697 | 2764-3697 | 3038 | 3148 |
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.
