Testing of welded joints of gas-steam oven steam oven gas requirements of welded joints testing requirements are listening to the views of the relevant units, based on the provisions of the relevant specifications and reference made. This procedure is not a gas phase and a liquid phase furnace furnace testing requirements are proposed, but to present different requirements depending on the pressure element. 1. A vertical gas steam drum furnace girth welds, seam head as a radiation or ultrasonic waves of at least 25% ray detection, substantially existing steam pellet boiler for house heatings and hot water boilers procedures consistent with the requirements, increased only allows for ultrasonic waves of at least 25 % of prescribed ray detection, and version 80 as steam boiler code requirements. Such ultrasonic waves of a predetermined main consideration 25% ray detection, can detect the presence of defects in the weld, meet safety requirements, and can reduce the production cost. 25% of the longitudinal seam ray detection must include cross-linker and a girth section. 2. For testing butt joint pipe heating surface, where heat is different according to each request. Different heating means by radiant and convective heat. In the draft, and 25% were defined as 10% of random testing. Feedback back in, some units considered low requirements, proposal to change, and 50% is appropriate; some units believe that this requirement can also be lower. After analysis, we adopted an opinion, not less than 10% of the radiant section ray detection checks; convection section of not less than 5% radiographic inspection checks. The main consideration butt weld heating surface prescribes the use of gas welding, quality can be guaranteed. The present specification further calculation and sampling rate testing method makes provision to make this procedure more operational. 3. In addition to gas steam boiler drum furnace gas should be mechanical tests, the furnace drum and all the liquid organic heat carrier furnace heating surface tube, pipe butt joints are not required mechanical tests. Therefore, the present production procedure drum furnace gas only make a check each of ten test panels. Other cases are not required to do testing test panels. The main consideration is relatively low liquid pressure furnace, while the present specification welding method does not only clearly defined, but also for the welding procedure requests, can guarantee the quality and properties of the weld.
Boiler also has a variety of automatic control functions can be operated by the pellet boiler for house heating comes with user interface, reducing labor consumption.
Xi'an, Baoji, Xianyang, Weinan what type of pellet boiler for house heating is better: Recently, Xiao Bian fast boiler discovery, both for counseling or purchases of gas boiler has been a significant improvement in Shaanxi Province, through the depth of excavation , small doubts have been answered. The advent of winter, mostly in Shaanxi around mid-November for heating, reached a peak of use of the boiler. According to China's introduction of the latest air pollutant emission standards, Shaanxi Province has been a significant amount of emission limits for new boilers and boiler construction in nitrogen oxide (referred to as NOx). According to the FIG see, Xi'an, Baoji, Xianyang, Weinan, Tongchuan etc. implement air pollution emissions of less than 30 mg / m (inclusive) for new boilers, boilers for the implementation of less than 80 mg / m ( containing) air pollution emissions.
Zhengzhou Sunrise Optoelectronics Technology Co., Ltd. by the Dongxu Group, Henan Province, the state-owned asset management companies and Zhengzhou Investment Holdings Limited jointly made, mainly engaged in flat panel display and solar industry design materials, manufacturing and sales operations. Sunrise Optoelectronics project has been put into a production line, the second phase will continue the expansion, three new production lines to meet the production needs of Project Phase II, Sunrise Optoelectronics urgent need to increase new pellet boiler for house heating equipment. After investigation and screening of a number of boiler brands, determined to cooperate with the fast boiler, steam signed a 10-ton integrated condensing gas steam boiler (WNS10-1.25-Y.Q).