There are two kinds of boiler pressure test mode. That work pressure boiler and boiler overpressure hydrostatic testing hydrostatic test. (1) working pressure boiler pressure test, in part after heating boiler overhaul or repair carried out test weld heating surface, connecting flanges, valves and other leaks. (2) boiler overpressure hydrostatic test, overpressure hydrostatic test pressure of 1.5 times the working pressure of the boiler test. This trial is not in front of the boiler insulation were installed. Recovery boiler overhaul to replace the hot side and a large area of ??the boiler through technological innovation and required boiler overpressure hydrostatic test. 2. The purpose of the work boiler boiler hydrostatic test pressure test designed to test the economizer tubes, superheater tubes, water wall tubes, set top box, the rigor of pipe flanges and valves, when the boiler boost to job stress, stop up After pressure, boiler pressure drop shall not exceed 3bar / min qualified. The more pressure boiler hydrostatic test objectives are: strength and rigor of each test boiler pressure parts. When the boiler pressure rose to pressure of work, the system should be water level, and then following the boost, allowable pressure when the pressure rises, the pressure should be maintained to stop the boost. Check all weld metal surface pressure parts no cracks, no drops, sweat, no residual deformation phenomena. 3, boiler pressure test requirements to boost the speed and pressure of the speed according to the ministerial regulations: boiler hydrostatic test speed boost 3bar / min, to press for 5bar / min, to prevent excessive boost, causing pressure shocks, damage hangers and equipment, and uncontrolled overpressure event. 4, the boiler pressure test temperature on water quality regulations (1) In addition to the boiler hydrostatic test water quality demineralized water or condensation peroxide. (2) boiler hydrostatic test water temperature is 50 ℃ -60 ℃ appropriate. If the temperature is too high, when the boiler pressure test is stopped when the boost to boost environmental protection 600 000 Gas oil furnace, is difficult to determine the effect of hydrostatic test, due to the cooling water temperature in the furnace heat shrink, so that the pressure drop caused by too quickly. Conducting oil furnace heat carrier HTF HTF either synthetic or mineral oil-conducting oil, their common features are hydrocarbons. Hydrocarbons will change the chemical bonds upon heating reaches a certain temperature but will produce new substances, the formation of fouling. This is different from other inorganic heat carrier conducting oil, water and molten salt features. In the oil furnace heating system, the thermal oil as the heat carrier, usually absorb radiation flames and high temperature flue gas pipe in the oil furnace and convective heat transfer, thermal oil heating temperature using a circulating pump with heat transfer equipment for environmental thermal oil furnace, heat and then back into the hot oil boiler, completing the cycle. Throughout the oil furnace system, oil heat transfer process to go through two environmental 200,000 gas oil furnace, which endothermic process in hot oil furnace in the oil heating system generates a major part of the dirt. If the temperature is higher than the inner wall HTF HTF HTF or chemically change occurs in certain components of the temperature, then they would react to form the inner wall of dirt near the HTF HTF tube. Commonly used HTF hydrocarbons on the market as an example, the dirt in the heat during the formation and development through four major stages: induction phase, the adsorption stage, hardening stage, off stage. After conducting oil furnace HTF HTF scale damage occurred fouling, greatly increasing the thermal resistance of the wall and the HTF HTF between 800,000 environmental oil furnace gas, reducing the heat transfer efficiency and heat output; HTF tube while the effective flow cross-section becomes smaller, increasing the load on the pumping equipment, waste of energy, but not safe. 100,000 green oil furnace gas | Arts boiler (certified) | Environmental oil furnace boiler by Hebei Arts LLC. Hebei Arts boiler limited liability company (www.yi-neng.cn) Hebei Cangzhou, a leader in industrial boilers and accessories over the years, the company implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs . Boiler leadership in the arts with the staff warmly welcome all inquiries negotiations to create arts boiler a better future.