hospital atmospheric pressure hot water boiler supplier

The purpose of using steam boilers is to generate steam for heating, but when steam boilers produce steam they should not ignore the equipment, and more attention should be paid to it, because at this time the steam boiler will start to boost its pressure. At the same time, the saturation temperature of the furnace water also began to rise continuously. Due to the rising water temperature in steam boiler, the metal wall temperature of bubble and evaporative heating surface also begins to rise at any time. It is necessary to pay attention to the temperature of thermal expansion and thermal stress, because the wall thickness of bubble is thicker. The main problem in the process of boiler heating is thermal stress. At the same time, consideration should be given to the overall thermal expansion of the steam, especially in the case of steam. The tube of boiler heating surface, because of its thin wall thickness and long length, the problem in the process of heating up is the thermal expansion of the whole right. At the same time, we should pay attention to its thermal stress to prevent the failure caused by neglect. In the process of steam generating and rising pressure, there is a temperature difference along the wall thickness and between the upper and lower walls of the bubble. When the temperature of the inner wall is higher than that of the outer wall, the temperature of the upper wall is higher than that of the lower wall. In order to prevent excessive thermal stress, the boiler must be slowly raised. The steam parameters, the water level and the working condition of the components of the steam boiler are also changing in the process of ignition and pressure rise. So, for In order to effectively prevent the occurrence of abnormal conditions and other dangerous accidents, it is necessary to arrange professional staff to closely monitor the changes of all kinds of instrument instructions. By adjusting the pressure, temperature, water level and other process parameters within the normal allowed range, but also to assess the reliability and safety of various instruments, valves and other components. Only in this way can fully ensure the safe and stable operation of steam boiler. The higher the pressure of the steam boiler, the higher the energy consumption, and the pressure accepted by the corresponding steam equipment and piping and valve will also increase, which will also increase the protection and maintenance demand of the steam boiler. The rate of heat dissipation and loss of steam generated and transported will also increase. The salt content of the high pressure steam increases with the increase of the pressure. These salts cause the structure phenomenon of the heated area such as the water wall tube, the smoke pipe and the boiler tube, which lead to the phenomenon of superheat foaming, blocking and so on. Serious can lead to pipeline explosion and other dangerous accidents.

Henan knowledge base of questions and answers a gas boiler, which requires special Henan gas boiler overpressure test there? (1) test pressure is 1.25 times the pressure of the bubble. (2) is generally carried out once every six years, according to the case by the chief engineer approved the extension of reduced reported to the competent department. (3) water temperature was 30-70 ℃ (4) Experimental procedure: ① Sheung advance, prolong the duration of the low pressure. ② hydrostatic pressure test to check the work. Overpressure experiments at ③1.25 times the working pressure, continued after 5min, and then down to the working pressure, in order to start checking. Second, Henan gas boiler combustion regulation purposes? (1) stabilized to maintain normal steam pressure, steam temperature of steam amount. (2) stable ignition, combustion central appropriate, uniform distribution of the flame, the burner does not burn, superheaters and other equipment, to avoid coking. (3) the operation of the unit to maintain the highest economy. Third, Henan gas boiler why should dosing? (1) with calcium and magnesium salts remaining in the pot water mixture, the precipitate was a loose state, then discharged through the discharge, the salts preventing formation of scale within the heating surface. (2) reacting the pot water hardness, PH value appropriate increase, helps prevent drum, Wall acid corrosion occurs, silicic acid to reduce the vapor carrying the selectivity. Keep the boiler normal dosing, to maintain an appropriate amount of excess phosphate ions, Henan is an important measure to prevent the gas boiler fouling.

In the accident investigation process, the reasons for boiler explosion, nothing less than three points: gas (fuel), air and heat. Once the three reaches a certain level, causing the boiler exploded not far.

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