SU623011A1 - Vacuum diffusion pump - Google Patents

Vacuum diffusion pump

Info

Publication number
SU623011A1
SU623011A1 SU772473918A SU2473918A SU623011A1 SU 623011 A1 SU623011 A1 SU 623011A1 SU 772473918 A SU772473918 A SU 772473918A SU 2473918 A SU2473918 A SU 2473918A SU 623011 A1 SU623011 A1 SU 623011A1
Authority
SU
USSR - Soviet Union
Prior art keywords
pump
diffusion pump
vacuum diffusion
vacuum
corrugation
Prior art date
Application number
SU772473918A
Other languages
Russian (ru)
Inventor
Владимир Иванович Брежатый
Семен Мордухович Хазан
Борис Иванович Лагутин
Александр Иванович Федоренко
Original Assignee
Предприятие П/Я В-2572
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.)
Filing date
Publication date
Application filed by Предприятие П/Я В-2572 filed Critical Предприятие П/Я В-2572
Priority to SU772473918A priority Critical patent/SU623011A1/en
Application granted granted Critical
Publication of SU623011A1 publication Critical patent/SU623011A1/en

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  • Applications Or Details Of Rotary Compressors (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Description

(54) ВАКУУМНЫЙ даФФУЗИОННЫЙ НАСОС(54) VACUUM DEFUSION PUMP

Изобретение о юситс  к вакуумной технике . Известен вакуумный диффузионный насос , содержащий охлаждаемый корпус с шро проводом по оси и К1ШЯТИПЬНИК f}. В известном насосе практически нельз  увеличить скорость откачки без изменени  размеров и параметров элементов конструкци I насоса. Целью изобретени   вл етс  повышешсе скорости откашш. Указа1ша  цель достигаетс  тем, что внут ренн   поверхность корпуса вьшолнена с продольными гофрами, обращенными выпуклой частью к паропроводу и имеющими в попереч ном сечении полуколец с радиусом, опр деп емь1М из соотношени : с i где S - радиус полукольца гофра, о - толщина стенки гофра. На фиг. 1 изображен насос, продольный разрез; на фиг. 2 - разрез А-А фиг. 1. Вакуумный даффузжзнный насос содержит охлаждаемый корпус 1 с паропроводом 2 по ош и кип тильник 3. Внутре1ш   поверхность корпуса 1 вьшолнена с продрльныАос гофрами 4, обращенными вьшуклой частью к паропроводу 2 и имеющими в попере шом сеченю: форму полуколец с радиусом б , определ емым из соотношешш 4 -Wгде S - радиус полукольца гофра, S - толщина стенки гофра. Как показал расчет, термическое сопротиале}ше охлаждаемой стенки корвуса. выполненiK )Fo продольно гоф{жроваш|ым, умшышетс  более, чем в полтора раза, что пошол ет при работе насоса увеличить тен овой ноток, подао димый к кип тильнику в полтора раза больше, чем в известном насосе. На ту же величину увеличивают расход охлаждающей жидкости, «побы обеспечить температ)фу корпуса на том же уровне , что и в известном насосе. Поскольку указанна  форма гофр обеспе|1ивает одинаковый во всех точках коэффициент теплоотдачи пар-стенка с одновременным увелиInvention about vacuum engineering. A vacuum diffusion pump is known, which contains a cooled housing with an axial conductor and K1 CROSS f}. In a known pump, it is practically impossible to increase the pumping speed without changing the dimensions and parameters of the elements of the construction I of the pump. The aim of the invention is to improve the rate of hacking. This goal is achieved by the fact that the inner surface of the casing is made with longitudinal corrugations facing the steam line with a convex part and having semicircles with a radius cross section defined by the depot 1M from the relation: c i where S is the radius of the semiring of the corrugation, o is the corrugation wall thickness . FIG. 1 shows a pump, a longitudinal section; in fig. 2 - section A-A of FIG. 1. A vacuum duffling pump contains a cooled body 1 with a steam line 2 along the pump and a boiler 3. Inside the surface of the case 1 is filled with protrusions 4 corrugations facing the steam line 2 and having a cross-section in the transverse section: the shape of a semi-ring with radius b defined by From the ratio 4 -W, where S is the radius of the half-ring of the corrugation, S is the thickness of the wall of the corrugation. As the calculation has shown, thermal soprotia is above the cooled wall of the Corvus. performed iK) Fo longitudinally corrugated {zhivashi | om, laughing more than one and a half times, which, when the pump is operating, will send an increase in the shadow note, fed to the boiler, one and a half times more than in the well-known pump. The coolant flow rate is increased by the same amount, “try to ensure the temperature of the fu casing at the same level as in the well-known pump. Since this form of corrugation ensures that the vapor-wall heat transfer coefficient, which is the same at all points, simultaneously increases

SU772473918A 1977-04-06 1977-04-06 Vacuum diffusion pump SU623011A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU772473918A SU623011A1 (en) 1977-04-06 1977-04-06 Vacuum diffusion pump

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU772473918A SU623011A1 (en) 1977-04-06 1977-04-06 Vacuum diffusion pump

Publications (1)

Publication Number Publication Date
SU623011A1 true SU623011A1 (en) 1978-09-05

Family

ID=20704096

Family Applications (1)

Application Number Title Priority Date Filing Date
SU772473918A SU623011A1 (en) 1977-04-06 1977-04-06 Vacuum diffusion pump

Country Status (1)

Country Link
SU (1) SU623011A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1991014102A1 (en) * 1990-03-14 1991-09-19 Nauchno-Proizvodstvennoe Obiedinenie 'vakuummashpribor' Vapour-jet vacuum pump

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1991014102A1 (en) * 1990-03-14 1991-09-19 Nauchno-Proizvodstvennoe Obiedinenie 'vakuummashpribor' Vapour-jet vacuum pump

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