Steam boiler controlled based on flow rate difference

Abstract

The invention provides a steam boiler controlled based on the flow rate difference. The steam boiler comprises an electric heating device and a steam chamber, the electric heating device is arranged in the steam chamber, the steam chamber comprises a water inlet pipe and a water outlet pipe, the electric heating device comprises a first pipe box, a second pipe box and a coil pipe, the coil pipe iscommunicated with the first pipe box and the second pipe box, a speed sensing element is arranged in the free end of a pipe bundle and is used for detecting the flow speed of fluid in the free end ofthe pipe bundle, the speed sensing element is in data connection with a controller, the controller extracts the speed data according to the time sequence and obtains the speed difference or speed difference change accumulation through comparison of the speed data in adjacent time periods, and when the speed difference or speed difference change accumulation is lower than the threshold value, thecontroller controls an electric heater to stop heating or continue heating. According to the steam boiler controlled based on the flow rate difference, the evaporation of the internal fluid can be judged to basically reach saturation through the speed difference according to the speed difference or the accumulated speed difference before and after the detection of the speed sensing element, so that the internal fluid can realize frequent vibration, and good descaling and heating effects are realized.

Description

technical field [0001] The invention relates to steam generating equipment, in particular to a steam boiler controlled by flow velocity difference. Background technique [0002] A steam boiler is used to generate steam, which is a mechanical device that uses the heat energy of fuel or other energy sources to heat water into steam. Steam boilers have a wide range of applications, and are widely used in garment factories, dry cleaners, restaurants, steamed bun shops, canteens, restaurants, factories and mines, bean products factories and other places. In the applicant's previous application, a new type of coil-type electric heating coil was developed and researched, such as CN106123306A, so that the elastic tube bundle caused by the expansion of the fluid caused by heating caused heating and descaling Effect. [0003] However, in the application, it is found that the continuous heating of the electric heater will lead to the stability of the fluid in the internal electric he...

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Problems solved by technology

[0003] However, in the application, it is found that the continuous heating of the electric heater will lead to the stability of the fluid in the internal electric heating device, that is, the fluid is not flowing or has little fluidity, or the flow rate is stable, resulting in a greatly weakened vibration performance of the coil, which affects Coil descaling and heating efficiency, Qingdao University of Science and Te

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