SU1280269A1

SU1280269A1 - Nozzle

Info

Publication number: SU1280269A1
Application number: SU843872855A
Authority: SU
Inventors: Павел Николаевич Ваторинов; Борис Иванович Перов; Владимир Петрович Бубнов
Original assignee: Тульский Отдел Центрального Конструкторского Бюро "Союзэнергоремонта"
Priority date: 1984-12-29
Filing date: 1984-12-29
Publication date: 1986-12-30

Abstract

Изобретение может быть использовано во всех устройствах, предна-значенньсс дл получени тепла посредством сжигани жидкого топлива, например котлах или промышленных печах. Цель изобретени состоит в повьшении надежности и упрощении конструкции путем перемещени топливной трубы в рабочее положение при подаче топлива и обратно пр,и прекращении подачи. Форсунка содержит корпус с патрубком дл подвода топлива и установленную по оси корпуса с возможностью осевого перемещени топливную трубу, один конец которой снабжен распылительной головкой, а другой сообщен с полостью корпуса и снабжен кольцевым подпружиненным поршнем. Топливна труба под действием давлени топлива, поступающего в полость корпуса, перемещаетс в рабочее положение. При прекращении подачи топлива давление с в корпусе падает и под воздействием S пружины поршень с топливной трубой возвращаетс в исходное положение. 1 ил.The invention can be used in all devices, especially for generating heat by burning liquid fuels, such as boilers or industrial furnaces. The purpose of the invention is to increase reliability and simplify the design by moving the fuel pipe to the working position when the fuel is supplied and vice versa, and stop the flow. The nozzle includes a housing with a nozzle for supplying fuel and an axially mounted fuel tube axially displaced, one end of which is provided with a spray head and the other connected to the housing cavity and provided with an annular spring-loaded piston. The fuel tube is moved into the working position by the pressure of the fuel entering the body cavity. When the fuel supply is cut off, the pressure c in the housing drops and, under the influence of S spring, the piston with the fuel pipe returns to its original position. 1 il.

Description

Изобретение относитс к технике сжигани жидкого топлива и может быть использовано во всех устройствах, например котлах или промышленных печах , предназначенных дл получени тепла посредством сжигани жидкого топлива.The invention relates to a technique for burning liquid fuels and can be used in all devices, for example boilers or industrial furnaces, designed to generate heat by burning liquid fuels.

Цель изобретени - повьшение надежности и упрощение конструкции форсунки путем перемещени топливной трубы в рабочее положение при подаче топлива и обратно при прекращении подачи.The purpose of the invention is to increase the reliability and simplify the design of the nozzle by moving the fuel pipe to the working position when the fuel is supplied and back when the supply is stopped.

На чертеже изображена форсунка, продольный разрез.The drawing shows the nozzle, a longitudinal section.

Форсунка содержит корпус 1 с патрубком 2 подвода топлива и установленную по оси корпуса 1 с возможностью осевого перемещени топливную трубу 3 с распылительной головкой 4, сообщенную с противоположного конца с полостью корпуса 1.The nozzle includes a housing 1 with a nozzle 2 for supplying fuel and mounted along the axis of the housing 1 with the possibility of axial movement of the fuel pipe 3 with the spray head 4, communicated from the opposite end with the cavity of the housing 1.

Топливна труба 3 на конце, сообщенном с полостью корпуса 1, снабжена кольцевым подпружиненным поршнем 5, скольз щим под воздействием давлени топлива по стенкам корпуса 1. Один конец пружины 6 закреплен на поршне 5, а другой - на стенке корпуса 1. Корпус t снабжен съемной крьш1кой 7 и штуцерами подвода пара и дренажа.The fuel pipe 3 at the end communicated with the cavity of the housing 1 is provided with an annular spring-loaded piston 5 sliding under the pressure of fuel along the walls of the housing 1. One end of the spring 6 is fixed to the piston 5 and the other end to the wall of the housing 1. The housing t is provided with a removable 7 and steam and drainage fittings.

Форсунка работает следукмцим образом .The nozzle works in the following way.

При прекращении подачи топлива давление в полости корпуса 1 падает и под воздействием усили пружины 6 поршень 5 с топливной трубой 3 и го5 ловкой 4 возвращаетс в исходное положение . При этом оставшеес в полости топливо выдавливаетс через отверстие в поршне 5 в топливную трубу 3 и головку 4 и уноситс воздухом в тоЮ почную камеру, где сгорает. Подачей продувочного пара в полость корпуса 1 со стороны пружины 6 обеспечиваетс очистка корпуса 1 и возврат поршн 5 в исходное положение в слуt5 чае поломки пружины 6, заедани поршн 5 и т.д.When the fuel supply is cut off, the pressure in the cavity of the housing 1 drops and under the influence of the force of the spring 6, the piston 5 with the fuel pipe 3 and dexterous 4 returns to its original position. At the same time, the fuel remaining in the cavity is squeezed through the hole in the piston 5 into the fuel pipe 3 and the head 4 and is carried by air to the ground chamber, where it is burned. By supplying the purge steam to the cavity of the housing 1 on the side of the spring 6, the housing 1 is cleaned and the piston 5 is returned to its original position in the event of spring 5 breaking, piston 5 jamming, etc.

Подачей продувочного пара в по- лость корпуса 1 со стороны поршн 5 обеспечиваетс очистка этой полости от посторонных включений, попавших в нее вместе с топливом, и подготовка горелочного устройства к работе. Предлагаема форсунка проста по конструкции и надежна в работе.By supplying the purge steam to the cavity of the housing 1 on the side of the piston 5, this cavity is cleaned of impurities trapped in it along with the fuel, and the burner is prepared for operation. The proposed nozzle is simple in design and reliable in operation.

Claims

The invention relates to a technique for burning liquid fuels and can be used in all devices, such as boilers or industrial furnaces, designed to generate heat by burning liquid fuels. The purpose of the invention is to increase the reliability and simplify the design of the nozzle by moving the fuel pipe to the working position when the fuel is supplied and back when the supply is stopped. The drawing shows the nozzle, a longitudinal section. The nozzle includes a housing 1 with a fuel supply nozzle 2 and an axially mounted fuel tube 3 mounted on the axis of the housing 1 with a spray head 4 communicating from the opposite end with the cavity of the housing 1. The fuel pipe 3 at the end communicating with the cavity of the housing 1 is provided with an annular spring-loaded piston 5 sliding under the pressure of fuel along the walls of housing 1. One end of spring 6 is fixed to piston 5, and the other end to wall of housing 1. Building t is equipped with a removable clamp 7 and fittings for steam supply and drainage. The nozzle works in the following way. When supplying liquid fuel with an excess pressure, many times exceeding the atmospheric pressure, the piston 5 is rigidly connected to the body of the housing 1 and is rigidly connected to the fuel pipe 3, it moves towards the combustion chamber. When this head 4 of the nozzle occupies the working position. The pipe 3 receives fuel into the head 4, where it is crushed to the required particle size. When the fuel supply is cut off, the pressure in the cavity of the housing 1 drops and under the influence of the force of the spring 6, the piston 5 with the fuel pipe 3 and the head 4 returns to its original position. At the same time, the fuel remaining in the cavity is squeezed out through the hole in the piston 5 into the fuel pipe 3 and the head 4 and is carried by air into the combustion chamber, where it is burned. By supplying the purge steam to the cavity of the housing 1 on the side of the spring 6, the housing 1 is cleaned and the piston 5 is returned to its original position in case of a spring 6 failure, jamming of the piston 5, etc. By supplying the purge steam to the cavity of the housing 1 on the side of the piston 5, this cavity is cleaned of impurities trapped in it along with the fuel, and the burner is prepared for operation. The proposed nozzle is simple in design and reliable in operation. Invention Nozzle comprising a housing with a fuel inlet and mounted along the axis of the housing with the possibility of axial movement - a fuel pipe with a spray head at one end communicated from the opposite end with the housing cavity, so as to improve reliability and simplify the design by moving the fuel tube to the operating position when being supplied. the fuel and at the end of the supply, the fuel pipe at the end communicated with the body cavity is provided with an annular spring-loaded piston sliding under the pressure of fuel along the walls of the body.