Fully automatic swirl steam mixing heater

Abstract

The invention relates to a full-automatic spiral-flow type steam mixing heater. A liquid inlet sleeve, a main sleeve and a liquid outlet sleeve of the full-automatic spiral-flow type steam mixing heater are fixedly connected in sequence. A tube plate flange is installed between the liquid inlet sleeve and the main sleeve. A liquid inlet is fixedly formed in the outer end of the liquid inlet sleeve. A liquid outlet is fixedly formed in the outer end of the liquid outlet sleeve. Rifling spiral-flow tube bundles are installed on the part, in the main sleeve, of the tube plate flange in parallel. A steam inlet is vertically formed in the liquid inlet sleeve in the axial direction. The steam inlet is connected to one ends of the rifling spiral-flow tube bundles through a steam flow guide pipe and a steam spiral-flow cone. The other ends of the rifling spiral-flow tube bundles are located in the main sleeve and communicate with an inner cavity of the main sleeve. By guiding the saturated steam, the rifling tube bundles are utilized for forming steam spiral-flow to drive heating media to rotate, so that the efficient steam mixing and heating effect is achieved. Meanwhile, by monitoring the temperature, the pressure and the flow of the media and the temperature, the pressure and the flow of the steam in real time, the purposes of energy conservation and consumption reduction are achieved. Moreover, the technical effects of scale preventing, blocking preventing, washing and the like are effectively and thoroughly achieved.

Description

technical field [0001] The invention belongs to heating devices for crude oil and water in petroleum and petrochemical industries, in particular to a fully automatic swirling steam mixing heater. Background technique [0002] At present, heat exchange devices are often used in petroleum and petrochemical industries. Most of the existing heat exchange devices are spiral plate heat exchangers or shell and tube heat exchangers. The spiral plate heat exchanger is made of steel plate material by rolling two steel plates to form a heat exchanger welded by two uniform spiral channels. The materials are Q235-B, 304, 321, 316L, 304L, etc. The spiral plate heat exchanger has the following technical defects: due to the small gap of the medium flow channel, such as the high content of impurities in the medium, after being heated by saturated steam, the flow channel is easy to form a large area of ​​fouling, and it cannot be cleaned mechanically. Seriously affect the normal production...

AI Technical Summary

Problems solved by technology

The spiral plate heat exchanger has the following technical defects: due to the small gap of the medium flow channel, such as the high content of impurities in the medium, after being heated by saturated steam, the flow channel is easy to form a large area of ​​fouling, and it cannot be cleaned mechanically.

The shell and tube heat exchanger has the following technical defects: because the temperature of the fluid inside and outside the tube is different, the temperature of the shell of the heat exchanger and the tube bundle are also different

However, when steam is directly mixed with low-temperature liquid medium, strong water hammer will occur, mainly because steam liquefies rapidly when steam meets low-temperature liquid medium, and a vacuum is continuously generated between steam and liquid medium, and at the same time, steam hits the liquid at a very high frequency Medium, when the liquid medium at the front end of the pipeline cannot be discharged in time, the volume of the liquid medium hit by the steam at high speed is compressed, and at the same time, under the action of the elastic force of the pipe, the pipeline generates high-frequency pressure fluctuations, causing the pipeline to vibrate. When the vibration and the pipeline When the natural frequency is close, a huge vibration will be formed, and in severe cases, the fragile part of the pipe wall and pipeline connection will burst

Images