boiler for heating and washing
Jitter causes and the role of the old and new boiler for heating and washing conducting oil furnace exhaust valves appear: on specific types of boilers, in the following explanation will be involved in, for oil furnace this one. Because of its widespread use and it is a common and common species, so it is necessary to become familiar with and understand, so in order to achieve the correct use of the boiler, and access to good economic returns, so, so that we can benefit from it. 1. Small oil furnace, in which the temperature difference, the degree of control on how much is appropriate? Oil furnace, if it is small, then, based on past experience, is controlled at around 20 ℃ appropriate because, at this temperature, the boiler circulating pump power is not large, and also possible to meet the large hot portion requirements. And if it is a large boiler, then the temperature difference is not appropriate. 2. conducting oil furnace jitter, then, for the old and new boilers, as if on a specific reason? If oil furnace jitter phenomenon problem, then, in terms of the old and the new boiler, on the specific reasons, is not the same, because: If you are a new boiler, it may be conducting oil of boiling oil work not done, oil light components can not be discharged; if the old boiler, then, one boiler feed water, and equipment leaks, the second is the emergence of thermal oil cracking, so reducing the flow rate, and pressure - the over-temperature.
First, all personnel must be familiar with the operation of the boiler for heating and washing boiler performance and safety knowledge, certificates; this non-job employees Never operate.
Diqing in Yunnan Nonferrous Metals Co., Ltd. mainly engaged in Pulang copper mining, site selection, sales and other items. As we all know, in the copper smelting process, it consumes a lot of electricity and thermal power resources, which account for most of the hot water consumption. Combined with the actual demand Diqing company, to provide fast Boiler 1 stage electric heating hot water boiler for heating and washing of 2.1MW.
Waste boiler for heating and washing damage and over-temperature overpressure maintenance program to ensure the normal use of the waste heat boiler, to conduct strict monitoring of the temperature of the device, pressure, steam production, etc., to prevent over-temperature overpressure operation, not to ensure that the main production of chemical products , while ignoring the protection of the waste heat boiler, waste heat boiler eventually cause damage, forcing the total unit shutdown. When repairing a waste heat boiler for a petrochemical plant, found in the high-temperature side of the large number of burst pipes. The reason for the investigation, mainly towards the end of the year to ensure the completion of production tasks, and increased work load, resulting in over-temperature overpressure operation, leading to over-burning furnace tube, resulting in burst pipes. Improper waste heat boiler water treatment boiler is also one of its water supply must meet the requirements of the boiler water. In some plants, due to various reasons for this request seriously enough, that is not always the main equipment products, ignoring the quality control of its water supply, resulting in huge losses. After careful analysis of the structure of the apparatus and observe damage, following observations were made: (1) the waste heat boiler tubes up to 10m, the low temperature furnace tube plate and tubes are welded structure expansion. Out in the field can not damage the tube, it must be removed to send repair factory repair; (2) must make sure that the new exchange tubes of the high temperature-side pipe plate 3mm protective layer of water, with water to ensure the protection tube sets of concentric. And the best way to ensure 3mm protective layer of water that is the case not to cut, just out of the old pipe, can be replaced with a new tube. Accordingly, development of a repair scheme as follows: (1) to both sides of the tubesheet bore boring furnace tube head, to ensure that each of the furnace tube to tube plate separator. In which the lower tube plate, the tube plate to ensure = 14mm 57mm concentric to the hole on the high support and forging; the upper tube plate, to ensure that the upper tube plate and tube weld is disengaged. (2) the old tube out from the tube sheet on the lower lateral sides of the tube plate to the tube plate punched up = 290mm hole. (3) withdrawing furnace tube damage, one requires pumping a barrier to prevent misalignment baffles within the housing. (4) the centering ring on the new tube welded end to ensure that the new tube after penetrating the tube plate, the aqueous homogeneous = 3mm protective layer profile. (5) penetrate new furnace tube, tube wear new requirements in place a good spot, take out the old furnace tube between the two new tubes. (6) the tube plate TIG welding, particularly welding node and Welding. Wherein the upper tube plate using fillet welding, using a lower tube plate bore welding. (7) the tube plate on the furnace tube after welding expander. (8), the lower tube plate weld stress relief treatment. (9) the tube / plate welds colored 100% inspection, hydrostatic testing. Following the above repair process waste heat boiler has been running more than a year, currently running in good condition.