SU714052A1 - Apparatus for determining centrifugal pump impeller slit seal wear - Google Patents
Apparatus for determining centrifugal pump impeller slit seal wear Download PDFInfo
- Publication number
- SU714052A1 SU714052A1 SU772531624A SU2531624A SU714052A1 SU 714052 A1 SU714052 A1 SU 714052A1 SU 772531624 A SU772531624 A SU 772531624A SU 2531624 A SU2531624 A SU 2531624A SU 714052 A1 SU714052 A1 SU 714052A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- wear
- groove
- seal
- impeller
- centrifugal pump
- Prior art date
Links
- 238000004891 communication Methods 0.000 claims description 2
- 239000012530 fluid Substances 0.000 claims description 2
- 230000007423 decrease Effects 0.000 claims 1
- 238000011088 calibration curve Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- ZZUFCTLCJUWOSV-UHFFFAOYSA-N furosemide Chemical compound C1=C(Cl)C(S(=O)(=O)N)=CC(C(O)=O)=C1NCC1=CC=CO1 ZZUFCTLCJUWOSV-UHFFFAOYSA-N 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/08—Sealings
- F04D29/16—Sealings between pressure and suction sides
- F04D29/165—Sealings between pressure and suction sides especially adapted for liquid pumps
- F04D29/167—Sealings between pressure and suction sides especially adapted for liquid pumps of a centrifugal flow wheel
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Description
Изобретение относится к области гидро- , ^машиностроения, а более конкретно - к насо· состроениго и эксплуатации насосов.The invention relates to the field of hydro, engineering, and more specifically to a pump · construction and operation of pumps.
Известно устройство для определения износа уплотнений, в частности щелевых, представляющее собой специальный стенд с гидравлической и механической системами, моделирующими реальные условия работы уплдтнений [1].A device for determining the wear of seals, in particular gap, representing a special stand with hydraulic and mechanical systems that simulate the real working conditions of sealings [1].
Однако такое устройство сложно, громоздко и не может быть* применено для контроля износа уплбтнения в процессе его работы, напри-: мер, в реальном центробежном насосе.However, such a device is complex, cumbersome, and cannot be * used to control wear and tear of packing during its operation, for example: in a real centrifugal pump.
Известно также устройство для определения износа щелевого уплотнения рабочего колеса центробежного насоса, содержащее выполненный в неподвижном кольце уплотнения паз, сообщенный с каналом, связанным с измерительным прибором и выполненным в корпусе насоса [2]. 20It is also known a device for determining the wear of a gap seal of the impeller of a centrifugal pump, comprising a groove made in the stationary ring of the seal, in communication with a channel connected to the measuring device and made in the pump casing [2]. 20
Упомянутый паз выполнен глухим, а его Глубина равна разности между толщиной стенки кольца уплотнения и величиной допустимого износа. При работе насоса неподвижное кольцо уплот- нения изнашивается. По достижении предельного износа неподвижного кольца паз становится сквозным и перекачиваемая среда через этот паз и канал в корпусе центробежного Насоса поступает к измерительному прибору.The said groove is made blind, and its Depth is equal to the difference between the wall thickness of the seal ring and the amount of allowable wear. When the pump is running, the stationary seal ring wears out. Upon reaching the maximum wear of the fixed ring, the groove becomes through and the fluid pumped through this groove and the channel in the centrifugal pump body enters the measuring device.
Вышеописанное устройство позволяет без разборки насоса установить момент выхода из строя щелевого уплотнения по появлению протечек перекачиваемой среды.The above device allows without disassembling the pump to establish the moment of failure of the gap seal by the occurrence of leaks of the pumped medium.
Недостатком известного устройства является невозможность обеспечить постоянный контроль степени износа щелового уплотнения в процессе рабогы центробежного насоса, т.е. оценить остаточный ресурс щелевого уплотнения в любой момент времени без разборки насоса.A disadvantage of the known device is the inability to provide constant monitoring of the degree of wear of the gap seal during the operation of the centrifugal pump, i.e. estimate the residual life of the gap seal at any time without disassembling the pump.
Целью данного изобретения является обеспечение контроля степени износа щелевого уплотнения.The aim of this invention is to provide control of the wear rate of the gap seal.
Это достигается тем, что· паз в неподвижном кольце уплотнения имеет форму усеченного конуса, обращенного меньшим основанием к рабочему колесу, и выполнен открытым со стороны последнего.This is achieved by the fact that the groove in the stationary ring of the seal has the shape of a truncated cone, facing a smaller base to the impeller, and is made open from the side of the latter.
Тарировочные кривые зависимости коли. чества протечек от величины износа определяются расчетным или экспериментальным путем при разработке конкретного оборудования. Погрешность тарировки определяется экспериментально и указывается в тарировочных кривых или последние изображаются с полем допуска.Calibration curves of dependence. the amount of leakage from the amount of wear is determined by calculation or experimentally when developing specific equipment. The calibration error is determined experimentally and indicated in the calibration curves or the latter are displayed with a tolerance field.
Claims (2)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU772531624A SU714052A1 (en) | 1977-10-17 | 1977-10-17 | Apparatus for determining centrifugal pump impeller slit seal wear |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU772531624A SU714052A1 (en) | 1977-10-17 | 1977-10-17 | Apparatus for determining centrifugal pump impeller slit seal wear |
Publications (1)
Publication Number | Publication Date |
---|---|
SU714052A1 true SU714052A1 (en) | 1980-02-05 |
Family
ID=20728005
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU772531624A SU714052A1 (en) | 1977-10-17 | 1977-10-17 | Apparatus for determining centrifugal pump impeller slit seal wear |
Country Status (1)
Country | Link |
---|---|
SU (1) | SU714052A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6504888B1 (en) * | 1999-12-23 | 2003-01-07 | General Electric Company | Apparatus and methods of flow measurement for a boiling water reactor internal pump |
-
1977
- 1977-10-17 SU SU772531624A patent/SU714052A1/en active
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6504888B1 (en) * | 1999-12-23 | 2003-01-07 | General Electric Company | Apparatus and methods of flow measurement for a boiling water reactor internal pump |
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