SU1451349A1 - Two-stage vacuum pump - Google Patents

Two-stage vacuum pump Download PDF

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Publication number
SU1451349A1
SU1451349A1 SU874226199A SU4226199A SU1451349A1 SU 1451349 A1 SU1451349 A1 SU 1451349A1 SU 874226199 A SU874226199 A SU 874226199A SU 4226199 A SU4226199 A SU 4226199A SU 1451349 A1 SU1451349 A1 SU 1451349A1
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SU
USSR - Soviet Union
Prior art keywords
stage
chamber
vacuum
high vacuum
channel
Prior art date
Application number
SU874226199A
Other languages
Russian (ru)
Inventor
Борис Андреевич Пономаренко
Виктор Павлович Григоров
Эдуард Викторович Пиунов
Original Assignee
Сумский филиал Харьковского политехнического института им.В.И.Ленина
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Application filed by Сумский филиал Харьковского политехнического института им.В.И.Ленина filed Critical Сумский филиал Харьковского политехнического института им.В.И.Ленина
Priority to SU874226199A priority Critical patent/SU1451349A1/en
Application granted granted Critical
Publication of SU1451349A1 publication Critical patent/SU1451349A1/en

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C28/00—Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids
    • F04C28/24—Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids characterised by using valves controlling pressure or flow rate, e.g. discharge valves or unloading valves
    • F04C28/26—Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids characterised by using valves controlling pressure or flow rate, e.g. discharge valves or unloading valves using bypass channels
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
    • F04C18/30—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members
    • F04C18/32—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having both the movement defined in group F04C18/02 and relative reciprocation between the co-operating members
    • F04C18/322—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having both the movement defined in group F04C18/02 and relative reciprocation between the co-operating members with vanes hinged to the outer member and reciprocating with respect to the outer member
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C23/00—Combinations of two or more pumps, each being of rotary-piston or oscillating-piston type, specially adapted for elastic fluids; Pumping installations specially adapted for elastic fluids; Multi-stage pumps specially adapted for elastic fluids
    • F04C23/001—Combinations of two or more pumps, each being of rotary-piston or oscillating-piston type, specially adapted for elastic fluids; Pumping installations specially adapted for elastic fluids; Multi-stage pumps specially adapted for elastic fluids of similar working principle
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2220/00—Application
    • F04C2220/10—Vacuum

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Applications Or Details Of Rotary Compressors (AREA)
  • Compressors, Vaccum Pumps And Other Relevant Systems (AREA)

Abstract

Изобретение позвол ет повысить производительность вакуум-насоса. Плунжеры 7, 8 установлены на эксцентриках 5, 6 вала 4. Хвостовики 11,12 расположены в направл ющих 9, 10 и образуют с расточками 2, 3 корпуса 1 рабочие камеры 13, 14 низко- и высоковакуумной ступеней. В корпусе 1 выполнены впускной и выпускной каналы (К) 15, 16 высоковакуумной ступени, впускной и выпускной К 17, 18 низковакуумной ступени. К. 16 св зан с К 17 через промежуточную камеру 19. Масл на  камера 20 св зана с камерой 19 К 21 с клапаном 22. К 16, 18 снабжены клапанами 23, 24. В направл ющей 10 выполнен канал 25. через который, а также через К 26 и трубку 27, камера 14 периодически сообщаетс  с камерой 19. 3 ил.The invention improves the performance of the vacuum pump. The plungers 7, 8 are mounted on the eccentrics 5, 6 of the shaft 4. The shanks 11, 12 are located in the guides 9, 10 and form with bores 2, 3 of the body 1 working chambers 13, 14 of low and high vacuum stages. In the housing 1 there are inlet and outlet channels (K) 15, 16 of the high vacuum stage, inlet and outlet K 17, 18 of the low vacuum stage. K. 16 is connected to K 17 through an intermediate chamber 19. The oil to the chamber 20 is connected to the chamber 19 K 21 with the valve 22. K 16, 18 are equipped with valves 23, 24. In the guide 10 there is a channel 25. through which, and also through K 26 and tube 27, chamber 14 periodically communicates with chamber 19. 3 sludge.

Description

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Изобретение относитс  к вакуумной технике , а именно к конструкци м двухступенчатых вакуумных насосов.The invention relates to vacuum technology, namely to the design of two-stage vacuum pumps.

Цель изобретени  - повышение производительности насоса.The purpose of the invention is to improve the performance of the pump.

На фиг. 1 изображена схема двухступенчатого вакуумного насоса; на фиг. 2 - направл юща  высоковакуумной ступени с каналом на ее цилиндрической поверхности; на фиг. 3 - направл юща , поперечный разрез А-А на фиг. 2.FIG. 1 shows a diagram of a two-stage vacuum pump; in fig. 2 — a guide of a high-vacuum stage with a channel on its cylindrical surface; in fig. 3 is a guide, cross-section A-A in FIG. 2

Двухступенчатый вакуумный насос содержит корпус 1 с цилиндрическими расточками 2 и 3, вал 4 с эксцентриками 5 и 6 и, установленными на них плунжерами 7 и 8, образующими с направл ющими 9 и 10, в которых расположены хвостовики 11 и 12, и цилиндрическими расточками 2 и 3 рабочие камеры 13 и 14 низковакуумной и высоковакуумной ступеней. В корпусе 1 выполнены впускной канал 15 и выпускной канал 16 высоковакуумной ступени, а также впускной канал 17 и выпускной канал 18 низковакуумной ступени, причем выпускной канал 16 высоковакуумной ступени св зан с впускным каналом 17 низковакуумной ступени через промежуточную камеру 19. В корпусе выполнена также масл на  камера 20, св занна  с промежуточной камерой 19 каналом 21 с клапаном 22. Выпускные каналы 16 и 18 снабжены клапанами 23 и 24. В направл ющей 10 высоковакуумной ступени выполнен канал 25, через который, а также через канал 26 и трубку 27, рабоча  камера 14 периодически сообщаетс  с промежуточной камерой 19.The two-stage vacuum pump comprises a housing 1 with cylindrical bores 2 and 3, a shaft 4 with eccentrics 5 and 6 and plungers 7 and 8 mounted on them, forming with guides 9 and 10 in which the shanks 11 and 12 are located, and cylindrical bores 2 and 3 working chambers 13 and 14 of low-vacuum and high-vacuum stages. In the housing 1, the inlet channel 15 and the outlet channel 16 of the high vacuum stage are made, as well as the inlet channel 17 and the outlet channel 18 of the low vacuum stage, the outlet channel 16 of the high vacuum stage being connected to the inlet channel 17 of the low vacuum stage through the intermediate chamber 19. The oil is also oil into chamber 20 connected with intermediate chamber 19 by channel 21 with valve 22. Outlet channels 16 and 18 are equipped with valves 23 and 24. In guideway 10 of the high-vacuum stage, channel 25 is made through which, as well as through channel 26 and tube 27, Static preparation chamber 14 periodically communicates with the intermediate chamber 19.

Двухступенчатый вакуумный насос работает следующим образом.Two-stage vacuum pump works as follows.

При вращении вала 4 откачиваемый газ поступает во впускной канал 15 высоковакуумной ступени, затем через канал 16 и частично через каналы 25 и 26 попадает вWhen the shaft 4 rotates, the pumped gas enters the inlet channel 15 of the high-vacuum stage, then through channel 16 and partially through channels 25 and 26 enters the

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промежуточную камеру 19. Из камеры 19 газ поступает в низковакуумную ступень и через канал 18 с клапаном 23 попадает в масл ную камеру 20, а затем в атмосферу. С падением давлени  на всасывании высоковакуумной ступени уменьшаетс  количество воздуха, .поступаемого в высоковакуумную ступень насоса.intermediate chamber 19. From chamber 19, the gas enters the low-vacuum stage and through channel 18 with a valve 23 enters the oil chamber 20, and then into the atmosphere. With a drop in pressure at the suction of the high vacuum stage, the amount of air entering the high vacuum stage of the pump decreases.

Давление в рабочей камере 14 падает и клапан 24 закрываетс , после чего воздух выталкиваетс  в промежуточную камеру 19 через каналы 25, 26 и трубку 27, которые при вращении ротора 4 периодически в конце такта нагнетани  сообщают рабочую камеру 14 с промежуточной камерой 19.The pressure in the working chamber 14 drops and the valve 24 closes, after which the air is pushed into the intermediate chamber 19 through the channels 25, 26 and tube 27, which, when the rotor 4 rotates, periodically at the end of the pumping stroke communicate the working chamber 14 with the intermediate chamber 19.

Claims (1)

Формула изобретени .Claims. Двухступенчатый вакуумный насос, содержащий корпус с цилиндрическими расточками , вал с эксцентриками и установленными на них плунжерами, образующими с направл ющими, в которых расположены хвостовики плунжеров, и цилиндрическими расточками рабочие камеры низковакуумной и высоковакуумной ступеней, промежуточную камеру и св занную с ней каналом, содержащим предохранительный клапан, мас- локамеру, причем обе ступени содержат впускные и выпускные каналы, а выпускной канал низковакуумной ступени снабжен клапаном, отличающийс  тем, что, с целью повыщени  производительности, насос снабжен дополнительным клапаном, установленным в выпускном канале высоковакуумной ступени, в корпусе выполнен второй выпускной канал высоковакуумной ступени, а в направл ющей этой ступени выполнена канавка с возможностью периодического сообщени  через нее и второй выпускной канал рабочей камеры высоковакуумной ступени с промежуточной камерой.A two-stage vacuum pump comprising a housing with cylindrical bores, a shaft with eccentrics and plungers mounted on them, forming with guides in which the plungers shanks and cylindrical bores are located, working chambers of low vacuum and high vacuum steps, an intermediate chamber and a channel connected to it containing a safety valve, a mascamera, both stages having inlet and exhaust channels, and a low-vacuum stage exhaust channel provided with a valve, characterized in that In order to increase productivity, the pump is equipped with an additional valve installed in the exhaust channel of the high vacuum stage, the second exhaust channel of the high vacuum stage is made in the housing, and in the guide of this stage there is a groove with the possibility of periodical communication through it and the second exhaust channel of the working chamber of the high vacuum stage with the camera. (( hrhr сриг2srig2 66 (и.З(of
SU874226199A 1987-04-07 1987-04-07 Two-stage vacuum pump SU1451349A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU874226199A SU1451349A1 (en) 1987-04-07 1987-04-07 Two-stage vacuum pump

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU874226199A SU1451349A1 (en) 1987-04-07 1987-04-07 Two-stage vacuum pump

Publications (1)

Publication Number Publication Date
SU1451349A1 true SU1451349A1 (en) 1989-01-15

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ID=21296922

Family Applications (1)

Application Number Title Priority Date Filing Date
SU874226199A SU1451349A1 (en) 1987-04-07 1987-04-07 Two-stage vacuum pump

Country Status (1)

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Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
Пауэр Б. Д. Высоковакуумные откач- ные устройства. - М.: Энерги , 1969, с. 23. *

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