nerapdrakat panas uap stem boiler

Henan gas nerapdrakat panas uap stem boiler installation requirements for the gauge 1. Pressure gauge installation should meet the following requirements: ⑴. Henan gas boiler installation position gauge, should be easy to observe and rinsing, the dial should be tilted forward 15 °, and should prevent affected by temperature, vibration and the like freezing. ⑵. There should be a trap between the pressure gauge and gas-fired boiler drum Henan. Steam or hot water in which the spring and then into the cooling pipe, to avoid reading errors caused by high temperatures, even damaged parts in the table. The inner diameter of the trap, with the brass when not less than 6mm, when using steel not less than 10mm. A lower portion of the trap, preferably equipped with drain cocks, water to let go of the tube after shutdown. ⑶. It should be fitted between the water gauge and the three-way stopcock elbow, and to flush the pipeline inspection, check, unloading gauge change. a. When normal working pressure gauge, Henan gas boiler media through the trap and pressure gauge connected, the pressure gauge pressure boilers. b. Check the pressure gauge, Henan gas boiler and pressure gauge cut off, the pressure gauge to the atmosphere, because there is no pressure in the table, so if the pointer back to zero can not prove that the gauge has failed and must be replaced. c. When flushing the trap, Henan gas boiler with the atmosphere, with the pressure gauge cut off, the trap in the water and dirt, the boiler blowing in the media. d. So that when water in the trap, the trap and the air pressure gauge are cut off, Henan gas boiler steam or hot water is gradually accumulated in the trap was cooled. e. When checking pressure gauges, while communicating with the boiler working pressure gauge and check the pressure gauge. Standard gauge calibration connected with the flange on the left side of the three-way cock, the medium from the working pressure into the trap and simultaneously checking the pressure gauge. Pressure gauge indicates the two values, the difference shall not exceed the gauge tolerances specified otherwise, the work proved inaccurate pressure gauge, pressure gauge must be replaced. Three-way stopcock handle end portion, the plug must be marked with an arrow indicating the direction of passage in order to identify. When the three-way stopcock operation, action to slow, to avoid damaging the gauge parts. ⑷. Even if long tube pressure gauge, the valve can be installed (or cock) close to the connection pipe at boiler drum Henan gas for use in the maintenance of the cutting gauge and accessories. However, in operation, the valve must be loaded (or tap) the hand wheel (or handle) Remove or lock to prevent accidental off and cause a major accident. 2. When the pressure gauge of the following circumstances, should stop using: ⑴. Limited nail no pressure gauge, the staple rotation pointer does not return to the limit; not limitation staple no pressure gauge, a pointer value from the zero position more than a predetermined tolerance gauge. ⑵. The surface of the glass or ambiguous dial scale. ⑶. No seal, the seal is damaged, or the Verify the expiration date. ⑷. In the table pointer leaks or beating. ⑸. Other effects gauge accurate defect.

Boiler explosion in the nerapdrakat panas uap stem boiler explosion pressure is always weak parts of component failure, and then by the gas, water expansion due to severe water hammer pot large amount of water so that the tear propagation occur. Vertical boiler rupture, most of them in scraps circle at a lot of steam from cracks jet, flew into the sky like a rocket, likely to fly away from tens to hundreds of meters; horizontal boiler explosion, prone to high temperatures in the lower abdomen drum furnace or combustion zone above the high temperature radiant section, since the inside of the furnace, boiler most likely parallel longitudinal flew. Next, we analyze the reasons for the explosion of the boiler equipment: 1, congenital defects: design errors, force structure, thermal compensation, the water cycle, a serious error with respect timber, strength calculation, safety facilities; manufacturing error, the wrong material, not according to the drawings, poor quality welding, heat treatment, hydrostatic testing, and process specification errors. 2, overpressure rupture: high operating pressure exceeds the boiler working pressure permit the element stress than the material limit stress. Overpressure conditions often due to safety relief device failure, inaccurate pressure gauge, overpressure alarm device failure, severe water shortages and accidents caused by improper handling. 3, overheating failure: a steel sheet hot burn, reduce the strength member caused damage. When the boiler water is generally dry, thick fouling, boiler water, there is reason to cause foreign matter or grease fall within the drum asbestos rubber plate or the like. 4, and burst patterns from slot: receiving element alternating stress, fatigue cracks, but also by the combined effects of corrosion, resulting in a groove-shaped thinned. 5, water hammer damage: the system caused by improper operation soda water hammer, so that the additional element by a strong stress failure. These are the causes of boiler explosion, I believe you must have learned a lot of knowledge of it, I hope this can help you to better avoid the occurrence of such phenomena, to ensure the safety of the work carried out.

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How are gas-fired nerapdrakat panas uap stem boiler to reduce nitrogen oxides? Clean, environmentally friendly, non-polluting natural gas has been the label, then why does natural gas also produces nitrogen oxides, and also need to control it? Fast boiler to answer your questions.

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