SU909318A1

SU909318A1 - Pumping unit

Info

Publication number: SU909318A1
Application number: SU802892605A
Authority: SU
Inventors: Вадим Фирсович Чебаевский
Original assignee: Московский гидромелиоративный институт
Priority date: 1980-03-06
Filing date: 1980-03-06
Publication date: 1982-02-28

Description

(54) НАСОСНАЯ УСТАНОВКА(54) PUMPING INSTALLATION

II

Изобретение относитс к гидромашиностроению , в частности к конструкции иасосиой установки , и может быть использовано при проектировании гидротранспортных систем в промышлешюсти, сельском хоз йстве и строительстве .The invention relates to hydraulic engineering, in particular, to the design and installation of the installation, and can be used in the design of hydraulic transport systems in the industrial, agricultural and construction sectors.

Известна насосна установка, содержаща цеитробежный насос, промежуточную емкость с эм ектором и запорно-коммут фующую ap-V Mfttypy 11.A pump unit is known that contains a zeitrige pump, an intermediate tank with an emulator, and a shut-off switch ap-V Mfttypy 11.

Недостатком эт(й .установки вл етс юсзка надежность из-за возможных утечек жидкости .The disadvantage of this installation is user reliability due to possible leakage of fluid.

Наиболее близкой к предлагаемой вл етс иасосна установка, содержаща всасывакнцуго трубу, подсоеданенную к промежуточной жидкостной емкости -и насос, рашопоженный ниже уровн жидкости в емкости и имеющий нагнетательт 1Й трубопро1од с обратным клапаном, подсоединенный через коллекторсборник к потребителю 2.Closest to the one proposed is a pumping installation containing an intake pipe connected to an intermediate liquid tank — and a pump that is lower than the liquid level in the tank and having a 1Y pipe with a check valve connected to the consumer 2 through a collector.

Недостатком насосной установки вл етс Ш1зка надежность работы, что св зано с возможной потерей герметичности.The disadvantage of the pumping unit is the reliability of operation, which is associated with a possible loss of tightness.

Цель изобретени - повышение надежности работы. The purpose of the invention is to increase the reliability of work.

Поставленна цель достигаетс тем, что в; установке нагнетательный трубопровод снабжен обводной трубкой с фильтрами и размещенными между. ними дросселем, подсоединенной к нагнетательному трубопроводу по обе стороны от обратного клапана.The goal is achieved by the fact that; The installation of the discharge pipeline is equipped with a bypass tube with filters and placed between. with a choke connected to the discharge pipe on either side of the check valve.

На чертеже -схематически показана установка , продольный разрез.In the drawing - schematically shows the installation, a longitudinal section.

«О"ABOUT

Claims

The plant has an intake pipe 1 connected to an intermediate liquid tank 2, and a pump 3 located below the liquid level in the tank 2 and a pump 3, located below the liquid level in the tank 2 and having a discharge pipe 4 with a check valve 5, under the connection through the collector-collector 6 to the consumer (not shown), moreover, the warnetaTenb pipeline 4 is equipped with a bypass pipe 7 with filters 8 and 9 and throttle 10 placed between them and connected to the discharge pipe 4 on both sides of the check valve by 5. Intermediate3. 9 N (the ejector 11 is installed in the tank, and valves 12 and 13 are placed in front of the filters 8 and 9 and a valve 14 is installed in front of the collector-collector 6. The installation works as follows. The intermediate tank 2 is filled with water from an external source. The pump-3 is started up with closed the valve 14 and valve 13. The ejector 11 sucks the air from the intermediate tank 2 and water enters it through the suction pipe 1. Then the valve 14 is opened and the water enters the collector-collector 6 and further to the Consumer. filter Ams 8 and 9 and throttle 10 provide compensation, leakage in the closure elements and joint leaks, which allows the pump unit to be restarted without pouring intermediate capacitance from an intermediate source and ensures the reliability of the pump unit and its start-up. A pump installation, containing a resorption tube connected to an intermediate liquid tank, and a pump located below the liquid level in the tank and having a discharge pipe with a back to Apane, connected through a collector to the consumer, characterized by 4roj with increased reliability, the discharge pipeline is equipped with a by-pass tube with filters and between them a throttle connected to the discharge pipeline on both sides of the check valve. attention during examination 1. USSR author's certificate N 271317, cl. F 04 D 13/00, 1965.

2. Authors certificate of the USSR N 533753, cl. F 04 D 13/06, 1973.