Can a boiler produce saturated steam at 330°C? Are there any examples of its industrial use?

This post was last edited by ylb913 on 2015-8-9 at 19:56. Such high pressure is unlikely to exist in refineries. The maximum pressure in our plant is 4.0 MPa (for the steam pipeline network, it’s 3.5 MPa). I’ve heard of systems with 8.0 MPa, but I’ve never heard of any higher pressures. Here is what I found on the Internet: (1) Boilers with a steam outlet pressure of less than or equal to 2.45 MPa are usually those whose steam temperature is at the saturated temperature or no higher than 400°C. (2) Boilers with an outlet steam pressure of 2.94–4.90 MPa for medium-pressure applications. For the current parameter ranges of power station boilers in our country, the outlet steam pressure for medium-pressure boilers is specified at 3.83 MPa, with a steam temperature of 450°C. (3) Boilers whose steam outlet pressure at the high-pressure boiler stage is 7.84–10.8 MPa. For the current parameter series of power plant boilers in our country, the outlet steam pressure of high-pressure boilers is 9.81 MPa, with the outlet steam temperature typically being 540°C. (4) Ultra-high pressure boilers with a steam outlet pressure of 11.8–14.7 MPa. For the current parameter ranges of power station boilers in our country, the outlet steam pressure for ultra-high pressure boilers is specified at 13.7 MPa, with the steam outlet temperature being 540°C; in some cases it is 555°C. (5) Subcritical pressure boilers are those whose outlet steam pressure lies between 15.7 and 19.6 MPa. For the current parameter ranges of power station boilers in our country, subcritical pressure boilers are specified to have an outlet steam pressure of 16.7 MPa, with an outlet steam temperature of 540°C or 555°C; in a few cases, it is 570°C. (6) Boilers whose outlet steam pressure exceeds the critical pressure, namely supercritical pressure boilers. The critical pressure of water vapor is 22.1 MPa. Currently, supercritical pressure levels used in power plant boilers are mostly between 25 and 27 MPa.

Can a boiler produce saturated steam at 330°C? Are there any examples of its industrial use? . . . . . Of course. But it depends on the pressure level you use; if the pressure requirements are not high, superheated steam can be used at the applied pressure. In short, the temperature of steam is related to pressure, and the most economical solution should always be adopted when using equipment.

Theoretically, it is possible. The pressure in the drum corresponding to saturated steam at 330°C is 13 MPa, which classifies it as an ultra-high pressure boiler. At present, there are no saturated steam boilers with such high pressures, and the main reason for this is economic considerations: the higher the steam pressure, the less heat is required for evaporation, resulting in a relative increase in the amount of energy needed to heat the feedwater and to superheat the steam (if a superheater is used). The heating surface area of the economizer used to heat the feedwater also increases accordingly. The temperature of the water exiting the economizer is close to 330 degrees, while the temperature of the flue gas exiting the furnace is usually above 800 degrees. Without a superheater, irreversible losses due to temperature differences increase, which leads to some of the economizer components being placed inside the furnace. This not only makes it difficult to arrange the heating surfaces properly but also results in a higher exhaust temperature for the boiler.

There should be some. Today’s large thermal power plants are all supercritical or ultra-supercritical, with steam pressures of over 20 MPa.

Boilers can certainly produce saturated steam at 330 degrees, but the problem is that the parameters of steam pipelines in China are fixed; it’s not possible to set any arbitrary pressure value.

330 degrees corresponds to approximately 12.8 MPa; steam injection boilers for oil fields can meet your requirements without any difficulty.

It can produce superheated steam at 330 degrees