Former boiler startup time and temperature of water on any provision: the speed of the water before the boiler starts not too fast, usually in winter no less than 4h, other seasons 2 ~ 3h, especially in the beginning of the water should be slow. Cold boiler water temperature is generally not more than 100 ℃, so that the temperature difference between the feedwater entering the drum drum wall temperature is not more than 40 ℃. Not completely cooled boiler drum water temperature, mutatis mutandis, wall temperatures, generally the difference should be controlled within 40 ℃, it should slow down or speed water.
The inspection requirements for boiler welded joints are made on the basis of listening to the opinions of the relevant units and referring to the regulations of the relevant codes. This code does not require gas-phase furnace and liquid-phase furnace respectively, but different requirements according to different pressure components. 1. The longitudinal ring weld seam of the boiler drum and the joint of the head of the boiler shall be ray or ultrasound plus at least 25% ray detection, which is basically consistent with the requirements of the current 8 ton steam boiler catalogue and hot water boiler code, Only the requirement for ultrasonic plus at least 25% x-ray flaw detection has been added, the same as the 80 version steam boiler code requirements. This provision mainly considers ultrasound plus 25% X-ray detection, complete The defects in the weld can be detected to meet the safety requirements, and the production cost can be reduced. 25% X-ray inspection must include the longitudinal seam and the circumferential cross joint. 2. The inspection of the butt joint of the heating surface pipe is required according to the different heat condition. Heat is different from radiative heat and convective heat. In the draft for advice, 25% and 10% spot tests are prescribed respectively. Among the feedback, some thought the requirement was lower, and suggested that it should be changed to 50%; some thought the requirement could be lower. Through analysis and research, we have adopted the latter opinion that the radiation range is no less than 10%. X-ray inspection; convective section not less than 5% X-ray detection. Gas shielded welding should be adopted in butt weld of heated surface pipe, and the quality can be guaranteed. In addition, the method of flaw detection and the calculation of sampling rate are stipulated in this regulation, which makes this procedure more operational. 3. Except for the drum of the gas furnace, the boiler drum of the liquid phase furnace, the heating surface pipe of all organic heat carrier furnaces and the butt joint of the pipe shall not be required to carry out the mechanical performance test. Therefore, this regulation only for gas boiler drum batch production of each 10 to do a test plate. There is no requirement for a test board in any other case. . The use pressure of liquid phase furnace is relatively low. At the same time, not only the welding method is specified clearly in this code, but also the requirements for welding procedure evaluation are put forward, which can guarantee the quality and performance of welding seam.
Oriental Hawaii Holiday Hotel is located in Xiaogan City of Hubei Province in accordance with international five-star hotel standard design, set business rooms, SPA bath, foot care, indoor spa and other facilities in one of the hotel. Hot water boiler is one of the important facilities normal operation can not be separated. With the pace of Hubei Province in response to the national defense of the blue sky, the use of clean fuels gradually increase the proportion of Oriental Hawaii hotel provides visitors to the more perfect leisure experience a sense of the original wishing more polluted coal-fired boilers to replace clean and green gas-fired boiler. After comparing several vendors boiler industry, a number of R & D results very fast square value in the field of clean fuels, entered into a collaboration with the fast boiler. Fast boiler integrally provided a 1.4MW condensing pressure hot water boiler (CWNSL1.4-95 / 70-Y.Q) according to their actual needs. Put into use, fully meet the needs of Oriental Hawaii Holiday Hotel heating and hot water supply.
10 ton paper factory 8 ton steam boiler catalogue types
The paper industry is a very energy-intensive industrial sector, Choosing the right boiler is important for the company. The use of 10 ton steam boilers in paper mills is very common, and customers often ask us for information about 10 tons of paper mill boilers.
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