Electrical-heating high-temperature conduction oil heat storage steam boiler and outlet steam temperature control method

Abstract

The invention discloses an electrical-heating high-temperature conduction oil heat storage steam boiler and an outlet steam temperature control method. The boiler comprises a boiler body, an upper sealing head arranged at the upper end of the boiler body and a lower sealing head arranged at the lower end of the boiler body, wherein a plurality of convection tubes are connected and fixed between an upper tube plate and a lower tube plate in the boiler; the boiler body, the upper tube plate, the lower tube plate and the plurality of convection tubes form an accommodating space; a conduction oil inlet pipe is arranged at the lateral side of the upper end of the boiler body and communicated with the accommodating spaces; a multi-hole steel plate is arranged in the lower sealing head, the lower sealing head is provided with a water inlet pipe at a lateral wall position under the multi-hole steel plate; a steam outlet pipe is arranged at the lateral side of the upper sealing head; a stirring device is arranged in the accommodating space; and a plurality of electric heating devices are circumferentially and evenly arranged on the boiler wall of the boiler body. By means of the electrical-heating high-temperature conduction oil heat storage steam boiler and the outlet steam temperature control method, quality of boiler outlet steam can be controlled, containers can work under normal pressure, size is small, cost is low, working is safe, energy is saved, environment is protected, popularization and application are facilitated, and heat storage boilers is greatly developed.

Description

technical field [0001] The invention belongs to the technical field of heat storage boilers, and in particular relates to an electrically heated high-temperature heat transfer oil heat storage steam boiler and a method for controlling the outlet steam temperature. Background technique [0002] For a long time, my country's power supply has been in a relatively tense state. In recent years, due to the adjustment of the national economic structure and the accelerated development of electric power construction, the tense situation of power supply tends to ease, and a considerable part of the region has power surplus. Some regional electric power departments have started to encourage the development of heating and steam supply methods using electricity as a heating source from the perspective of adjusting the grid load. In May 2011, the peak-valley electricity price stipulated by Xi'an City was 1.2281 yuan / kWh for general industrial and commercial use, and 0.4366 yuan / kWh for t...

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Problems solved by technology

[0013] The purpose of the present invention is to solve the problems that the existing electric heating accumulator can not control the temperature of the outlet working fluid well, and the heat accumulator is under pressure and the volume is large, which brings difficulties in manufacture and installation, and provides a novel structure , controllable outlet steam quality, small size, safe work, low production cost, energy-saving and environmentally friendly electric heating high-temperature heat transfer oil heat storage steam boiler, and effectively control the outlet steam temperature by increasing the speed of the agitator to obtain stable parameters and excellent quality steam

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