Introduction: It is the ratio of heat output to heat input of the boiler. Boiler efficiency= Heat output / heat input *100. =steam flow (enthalpy of steam -enthalpy of feed water) / coal flow * gcv. For example if there is a 80mw boiler with 540 dig centigrade of main steam temperature, feed water temperature of 300 dig centigrade , coal flow 56 ton, gcv 4000 kcal/kg then the boiler efficiency will be =307(826.28-242.58)/56*4000=80%.
Thermal efficiency of gas boiler = all the heat released by effective utilization of heat/fuel * 100%
= boiler evaporation * (steam enthalpy-feedwater enthalpy)/fuel consumption * low calorific value of fuel * 100%
Boiler thermal efficiency = 100%-the sum of the percentages of various heat losses.
① Exhaust heat loss. The heat loss will increase by about 1% for every 13℃ rise of exhaust temperature, that is, (exhaust temperature-room temperature) /13.
② For example, when the exhaust temperature is 200℃ and the room temperature is 20℃, the exhaust heat loss is about (200-20)/13=13.8, and the exhaust heat loss is 13.8%.
③ Heat loss from incomplete combustion of gas. The layer combustion is about 1~2%, the chamber combustion is about 0.5~1%, and the boiling furnace is ≤0.5%.
④ Heat loss from incomplete combustion of machinery.
⑤ Heat loss. The larger the boiler, the smaller the heat loss, which is generally 0.8~3%.
⑥ Physical heat loss of ash.
On June 7,2021, Wuxi ZOZEN Boiler Co., Ltd. and Saint-Gobain Group cooperated in the thermal oil heater project of Tanzania factory, which had entered the final inspection link before delivery.
ZOZEN Boiler provided two sets of gas-fired thermal oil heater for Sinochem Hongrun Petrochemical Co., Ltd.. Now, both of the boilers are under debugging. On May 6th, the technicians of ZOZEN Boiler went to the industrial park in Shandong Province, to provide professional boiler debugging guidance and training service for the enterprise.
Phosphogypsum is a kind of solid waste material generated from the production of phosphate and phosphoric acid. China is a big country that uses phosphate which causes serious pollution. With its professional skills in boilers, ZOZEN Boiler has become the supplier of thermal oil heater for Wengfu Zijin's annual output of 200,000 tons of building gypsum powder project, providing as much help as possible to solve the problem of phosphogypsum.
Recently, Wuxi ZOZEN Boiler Co., Ltd. helped an LNG company to quickly complete the transition from the old to the new of the thermal oil heaters for the 300000 nm³ LNG liquefaction production line, saving the economic losses of the enterprise and ensuring the normal supply of liquefied natural gas in local area.
ZOZEN Boiler which is popular among the aerated brick, board and other manufacturers in the building materials industry is keeping providing the sufficient steam heat source for the production and processing of building materials. This time, ZOZEN Boiler reached the cooperation with Zhejiang Zhongxin New Building Materials Co., Ltd. and won the recognition of customers.
In 2020, ZOZEN Boiler will continue to pay close attention to quality management and promote the improvement of boiler product quality to lay a solid foundation for the rapid development of the enterprise. As a leader in the domestic industrial boiler manufacturing industry, Wuxi ZOZEN Boilers Co., Ltd. reached a friendly cooperation with Ningde Amperex Technology Ltd. on the gas-fired thermal oil heater by virtue of high-quality product and abundant project experience, and successfully completed the boiler delivery within the agreed time.
The Dongwha Finland plant is located in southern Finland. The plant has been owned by Dongwha Enterprises since 2017, mainly produces wide range of different types of impregnated papers. ZOZEN Boiler provided a set of 7 million kcal thermal oil heater to Dongwha Finland under the strict circumstance of COVID-19 pandemic.
ZOZEN Boiler has guided the industrial boiler manufacturing quality for decades. It also has established the technology standards of blanking digitization, automation of welding and assembly moulding to realize the specialized and scale production of boiler's main parts. For further improving the boiler production efficiency and product quality, ZOZEN's Yixing factory introduced a series of new equipment including laser cutting machine, grooving machine, blending machine and sand blasting machine.
Boiler X-ray inspection is based on the difference in the absorption of X-rays by different material thicknesses. The X-ray inspection of boiler is to show the internal defects of materials, parts and welds from the film and image by using the X-ray perspective photography and real-time imaging of industrial television. Such as crack, shrinkage cavity, air hole, slag inclusion, undissolved, incomplete penetration and etc. The quality of materials or products can be evaluated by observing the nature, size and position of defects, so as to prevent major accidents caused by internal defects and poor processing of materials.
Tel:0086-510-68530299
Email:info@zozen.com
Addr: No. 76, Xin Da Road, Zhou tie Town, Yixing, Wuxi, China
+8613506150756
info@zozen.com
0086-510-68530299