SU956912A1

SU956912A1 - Steam preparation system

Info

Publication number: SU956912A1
Application number: SU803254728A
Authority: SU
Inventors: Яков Израилович Дубинский; Петр Иосифович Елисеев
Original assignee: Предприятие П/Я А-1094
Priority date: 1980-12-30
Filing date: 1980-12-30
Publication date: 1982-09-07

Description

(54) СИСТЕМА ПАРОПОДГОТОВКИ(54) SYSTEM OF STEAM TRAINING

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Изобретение относитс к теплоэнергетике и может быть использовано при утилизации тепла в энергетических установках.The invention relates to a power system and can be used for heat recovery in power plants.

Наиболее близкой к предлагаемой по технической сущности.и достигаемому результату вл етс система пароподготовки, содер- 5 жаща парожидкостный инжектор, установленный на трубопроводе свежего пара и подключенный своим выходом к теплообменнику, соединенному обводным трубопроводом с приемной камерой инжектора и с паровым Q пространством емкости вторичного вскипани , и регул торы температуры и давлени с соответствующими датчиками и исполнительными органами 1.Closest to the proposed technical essence. The achieved result is a steam treatment system containing a vapor-liquid injector installed on the fresh steam pipe and connected to the heat exchanger connected to the injector receiving chamber and the steam Q space of the secondary boil , and temperature and pressure controllers with appropriate sensors and actuators 1.

Недостатком известной- системы вл етс пониженна степень использовани теп- 15 ла пара.A disadvantage of the known system is the reduced use of heat of steam.

Цель изобретени - повышение степени использовани тепла пара.The purpose of the invention is to increase the degree of heat utilization of steam.

При достижении поставленной цели на трубопроводе свежего пара перед парожид- 2о костным инжектором дополнительно установлен пароструйный компрессор, приемна камера которого соединена с паровым пространством емкости вторичного вскипани , исполнительный орган регул тора температуры установлен на обводном трубопроводе , а исполнительный орган регул тора давлени - на трубопроводе свежего пара перед входом пароструйного компрессора.Upon reaching the goal, a steam jet compressor is additionally installed in the fresh steam pipeline before the steam-2o bone injector, the receiving chamber of which is connected to the steam space of the secondary boil-off tank, the temperature control actuator is installed on the bypass pipe, and the pressure regulator is on the fresh steam pipeline steam at the steam compressor inlet.

На чертеже приведена схема системы пароподготовки.The drawing shows a diagram of the system steam.

Claims

The system contains a vapor-liquid injector 1, a circuit for regulating the temperature of saturated steam, including a temperature sensor 2 connected via temperature controller 3 to an actuator 4 located on the bypass pipe 5 for supplying steam condensate to the secondary boiling point 6. The output of the vapor-liquid injector 1 is connected to the heat exchanger 7, the receiving chamber 8 of the injector is connected to pipeline 5, and the input is connected to the output of a steam-jet compressor 9. The receiving chamber 10 of a steam-jet compressor is connected to the vapor space of the secondary boiling-up tank 6 and the inlet to fresh steam pipe 11 . A pressure sensor 13 is connected to the saturated steam line 12 and is connected via the pressure regulator 14 to the actuator 15 on the high pressure steam supply line. The high-pressure steam enters the steam-jet compressor 9, where it performs work on the compression of the secondary boil-off from the tank 6 and, at the same time, loses some of its energy. The resulting steam is moistened in the vapor-liquid injector 1 with a recirculating condensate stream, which ensures a highly efficient mass transfer. Maintaining steam parameters at a given level is provided by two control loops — in terms of temperature and pressure. The use of the proposed steam treatment system will reduce the consumption of high-pressure steam by 20% due to the almost complete elimination of secondary boil-off into the atmosphere. The use of secondary boiling steam in the operating cycle eliminates the possibility of steam bypassing into the secondary boiling capacity, simplifies the steam preparation control scheme, increases its reliability. Claims of the steam preparation system comprising a vapor-liquid injector installed in the fresh steam pipeline and connected by its output to a heat exchanger connected to the injector receiving chamber and the vapor space of the secondary boiling point by means of a bypass pipeline, and temperature and pressure regulators with corresponding sensors and actuators differing in the fact that, in order to increase the degree of heat utilization of steam, on the fresh steam pipeline in front of the vapor-liquid injector, but a steam-jet compressor is installed, the receiving chamber of which is connected to the vapor space of the secondary boiling-up tank, the temperature regulator actuator is installed on the bypass pipe, and the pressure regulator actuator is located on the fresh steam pipe before the steam-jet compressor inlet. Sources of information taken into account in the examination 1. USSR author's certificate in application No. 2643600, cl. F 22 G 5/12, 1978.

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