A segmented steam generator and its system

Abstract

The invention provides a segmented steam generator and a system thereof. On the one hand, the flow of water is controlled through a metering pump; and on the other hand, a preheating section electriccontroller in the segmented steam generator controls a preheating section heating device and a preheating section temperature measuring element, so that the height of a water level in a preheating section outlet is kept stable, the contacted area of the water with the preheating section heating device is controlled, implementation of the vaporization process under a certain heat exchange area andheat exchange power is guaranteed, and stability in the vaporization process is guaranteed; and an evaporation section electric controller in the segmented steam generator controls an evaporation section heating device, an evaporation section temperature measuring element and a steam outlet pipe temperature measuring element, so that water vapor is stably evaporated and gradually heated to an evaporation section set temperature, and a steam outlet pipe meets high-precision requirements on flow and temperature of the water vapor.

Description

technical field [0001] The invention relates to a heating device for generating steam, in particular to a segmented steam generator and its system. Background technique [0002] A steam generator is a heating device widely used in the prior art, and it is a device that uses the energy of fuel or other energy sources to heat water into steam. The steam produced by the steam generator can not only be used in steam power devices, but also can be used as one of the chemical reaction components in many fields, such as: the reaction of iron and water vapor to produce hydrogen, the reaction of carbon and water vapor to produce water Coal gas, methane and steam reforming to produce hydrogen, etc. However, when water vapor as one of the chemical reaction components participates in the chemical reaction, there are higher requirements on the flow accuracy and temperature of the water vapor. Taking methane and steam reforming hydrogen production as an example, the flow accuracy of wat...

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Problems solved by technology

[0005] In view of the shortcomings of the prior art described above, the purpose of the present invention is to provide a segmented steam generator and its system, which is used to solve the problem of the difficulty in accurately controlling the flow and temperature of water vapor in the process of water evaporation in the prior art. to achieve precise control of the flow and temperature of water vapor at the outlet pipe of the steam generator, thereby meeting the high-precision requirements of water vapor as a chemical reaction component on flow and temperature

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