SU637160A1

SU637160A1 - Jet nozzle

Info

Publication number: SU637160A1
Application number: SU772503075A
Authority: SU
Inventors: Альберт Александрович Самбуков; Сергей Васильевич Обносов
Priority date: 1977-07-05
Filing date: 1977-07-05
Publication date: 1978-12-15

Description

,II

Изобретение относитс к области машиностроени и, в частности, к выполнению очистных устройств в соплах. Оно может быть также использовано в качестве автоматического фильтрующего сепарирующего устройства в технологических системах атомных электростанций дл удалени из системы радиоактивных фаэовых включений (твердые примеси - окислы из жидкости или влаги из насьпценного пара). The invention relates to the field of engineering and, in particular, to the implementation of cleaning devices in the nozzles. It can also be used as an automatic filtering separator in the technological systems of nuclear power plants for the removal of radioactive faecal inclusions from the system (solid impurities - oxides from liquid or moisture from saturated steam).

Известно сопло., выполненное в виде дугообразных губок, привернутых к корпусу болтами Г .Known nozzle. Made in the form of arcuate sponges, screwed to the body with bolts G.

Недостатком его вл етс низка производительность труда.The disadvantage of it is low productivity.

Известно и другое сопло, вьшолненное в виде сопр женных друг с другом входного и выходного конусов Г21.Another nozzle known as the input and output cones G21 is also known.

Это устройство вл етс наиболее бликим к изобретению по технической сушно сти достигаемому результату.This device is the most prominent to the invention due to technical drying of the achieved result.

Недостатком его вл етс отсутствие фильтрующей системы, что при работе сThe disadvantage of it is the absence of a filtering system, which, when working with

рабочей средой, содержащей фазовые включеип , может привести к засорению сопла.Working medium containing phase switches can cause clogged nozzles.

Целью изобретени вл етс обеспечение возможности фильтрации и безопасности при работе сопла за счет автоматического удалени фазовых включений из рабочей среды.The aim of the invention is to provide filtering capability and safety during operation of the nozzle due to automatic removal of phase inclusions from the working medium.

Указанна цель достиг-аетс тем, что сопло снабжено узлом очистки от фазовых включений, выполненным в виде расположенной в выходном копусе сопла конусной насадки с охватывающей ее кольцево камерой, расположе шой с зазором (а) относительно насадки со стороны подачи рабочей среды и охватывающей выходной конус кольцевой емкости, соо&цающейс патрубками с кольцевой камерой и имеющей дренажный штуцер.This goal is achieved by the fact that the nozzle is equipped with a phase inclusion cleaning unit made in the form of a cone nozzle with an annular chamber surrounding it with a gap (a) relative to the nozzle on the supply side of the working medium and covering the output cone. an annular vessel with & nozzles with an annular chamber and having a drainage fitting.

На фиг, 1 изображено сопло, продольный радрез; на фиг. 2 - поперечный разрез по А-А на фиг. 1.Fig, 1 shows a nozzle, longitudinal radrez; in fig. 2 is a cross-sectional view along A-A in FIG. one.

Claims

The nozzle is made in the form of input 1 and output 3 2 cones mating with each other. It is equipped with a phase phase cleaning unit made in the form of a conical nozzle 3 located in an output cone 3, with a circular chamber 4 enclosing it, located with a gap (a) relative to the nozzle 3 on the side, supplying the working medium, and an output capacitance 5, covering the output cone 2 , with & nozzles 6 with an annular chamber 4 and having a drainage fitting 7. The drainage fitting 7 is connected to a drainage pipe (not shown). The nozzle is placed in the pipeline 8. When the working medium having phase inclusions is supplied through the nozzle, its velocity increases. The concentration of phase inclusions in a narrow nozzle section increases. On the cone nozzle 3, the flow slows down and its full pressure increases. In this case, the phase inclusions, moving by inertia, fall on the cone nozzle 3, and the purified working medium due to the change of the velocity vector goes into the region of lower pressure — into the output cone 2 of the nozzle. Here, its pressure is restored to a predetermined value and then transported to the destination with minimal hydraulic resistance. Part of the working environment, limited by the cross section of the gap (a), with the precipitated phase inclusions passes through the gap (a) into the inner cavity of the chamber 4 and automatically removes N through the pressure drop through the nozzles 6, the annular capacity 5 and drainage pipes: wire. In this way, filtration, automatic drainage removal, minimal pressure loss during transportation and safety of the nozzle with a radioactive working medium are ensured. The nozzle, made in the form of cones coupled to each other, input and output GS5, characterized in that, in order to ensure filtering and safety during operation of the nozzle due to automatic removal of phase inclusions from the working medium, it is equipped with a phase cleaning unit inclusions, made in the form of a conical nozzle located in the nozzle exit cone with an annular chamber enclosing it, which is located with a gap relative to the nozzle on the side of the working medium supply and The ring tank is connected to the ring chamber and has a drainage nozzle. Sources of information taken into account in the examination: 1. USSR author's certificate 93587, M., cl. B 05 B 1 / GS, 1950.

2. Authors certificate of the USSR 116224, M., cl. P O2 K 1/12, 1954.