What is the main steam temperature of the sub high temperature boiler? How are the temperature class

According to the steam parameters, boilers are divided into low-pressure boilers (outlet steam pressure, the same below, medium-pressure boilers (MPa), high-pressure boilers (MPa), ultra-high-pressure boilers (MPa), subcritical pressure boilers (MPa), supercritical pressure boilers (> MPa) and ultra-supercritical pressure boilers (>27 MPa). Boilers can be divided into according to their different outlet steam pressures:

1) The steam temperature of the boiler at the outlet of the low-pressure boiler is less than or equal to the saturation temperature or not higher than 400.

2) The boiler with steam pressure at the outlet of the medium-pressure boiler. The current parameter series of power station boilers in China, the steam pressure at the outlet of the medium pressure boiler is specified as 450, and the steam temperature is 450.

3) The boiler with the steam pressure at the outlet of the high-pressure boiler. The current parameter series of power station boilers in China, the outlet steam pressure of high-pressure boilers is, and the outlet steam temperature is mostly 540

4) Boiler with steam pressure at the outlet of the ultra-high pressure boiler. The current parameter series of power station boilers in China, the steam pressure at the outlet of ultra-high pressure boilers is specified as 540, and the steam outlet temperature is 555 for a few times

5) Subcritical pressure boiler outlet steam pressure for the boiler. The current parameter series of power station boilers in China, the outlet steam pressure of subcritical pressure boilers is specified as 540 or 555, and a few are 570

6) Supercritical pressure boiler outlet steam pressure exceeds critical pressure. Water vapour.

The critical pressure is. At present, the supercritical pressure of power station boilers is mostly between 25 and 27MPa.

The main steam temperature of the sub-high-pressure boiler is generally rated at 450 or 485

The temperature of the boiler depends on the type of boiler:

For the products of C-class boiler manufacturers, the common hot water boiler with atmospheric pressure and unlimited tonnage has an outlet temperature of 85 degrees and a return temperature of 65 degrees. It is mostly used for heating and bathing.

The maximum pressure of the steam boiler is 185 degrees Celsius. It is mostly used in the chemical, food and manufacturing industries.

There are many temperatures of boilers: boiler outlet water, return water temperature, furnace temperature, exhaust gas temperature, water supply temperature, etc.

You are talking about a steam furnace or a heat transfer oil boiler, the steam depends on the pressure, and the heat transfer oil is 350 degrees.

The boiler is a kind of energy conversion equipment, and the energy input to the boiler is chemical energy and electrical energy in the fuel.

Therefore, the temperature of the boiler should be determined according to the type of boiler, and there are two types of boilers, namely:

1. In terms of the production of stuffy products in C-class boiler manufacturing plants, the common hot water boiler with atmospheric pressure is not limited tonnage, the water temperature is 85 degrees, and the return water temperature is 65 degrees, which is mostly used for heating and bathing, 2. The maximum pressure of the steam boiler is about 1 megapascal low-pressure boiler, and the maximum saturated steam temperature is 185 degrees, which is mostly used in the chemical, food and manufacturing industries.

Serial number. The name of the project.

Unit. Sub-high pressure and sub-high temperature.

Sub-high pressure medium temperature.

Superheated steam pressure. mpa

Superheated steam temperature.

Superheated steam enthalpy value. kj/kg

Feed water temperature. Thermal efficiency.

The steam parameters are different, the heat absorption share of each jujube base or hot surface is also different, and the layout and material selection of the heating surface are very different.

It refers to the difference in steam output parameters, the front state of medium temperature and medium pressure is degrees, the high temperature and high pressure is 540 degrees, and the second high temperature and low pressure are between the two.