ES2250037T3 - PUMP HOUSING WITH INDEPENDENT CLOSURE UNIT. - Google Patents

PUMP HOUSING WITH INDEPENDENT CLOSURE UNIT.

Info

Publication number
ES2250037T3
ES2250037T3 ES00105018T ES00105018T ES2250037T3 ES 2250037 T3 ES2250037 T3 ES 2250037T3 ES 00105018 T ES00105018 T ES 00105018T ES 00105018 T ES00105018 T ES 00105018T ES 2250037 T3 ES2250037 T3 ES 2250037T3
Authority
ES
Spain
Prior art keywords
housing
closure
cover
pump
closing
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Lifetime
Application number
ES00105018T
Other languages
Spanish (es)
Inventor
Jorg Freese
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sterling Fluid Systems Germany GmbH
Original Assignee
Sterling Fluid Systems Germany GmbH
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 Sterling Fluid Systems Germany GmbH filed Critical Sterling Fluid Systems Germany GmbH
Application granted granted Critical
Publication of ES2250037T3 publication Critical patent/ES2250037T3/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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
    • F04D29/10—Shaft sealings
    • F04D29/106—Shaft sealings especially adapted for liquid pumps
    • 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
    • F04D29/10—Shaft sealings
    • F04D29/12—Shaft sealings using sealing-rings
    • F04D29/126—Shaft sealings using sealing-rings especially adapted for liquid pumps
    • F04D29/128—Shaft sealings using sealing-rings especially adapted for liquid pumps with special means for adducting cooling or sealing fluid
    • 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
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
    • F04D29/426—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for liquid pumps
    • 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
    • F04D29/60—Mounting; Assembling; Disassembling
    • F04D29/62—Mounting; Assembling; Disassembling of radial or helico-centrifugal pumps
    • F04D29/628—Mounting; Assembling; Disassembling of radial or helico-centrifugal pumps especially adapted for liquid pumps

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

The pump has an installation opening(10) for a seal housing(11) in the cover for the pump casing, and for each seal(12a) from a group of predetermined seals a seal housing is fitted in the installation opening and with the cover provides static sealing. At least one of the predetermined seals is supplied with sealing medium and the cover and seal housing have aligning holes for feed thereof. The opposite lying circumferential faces of the installation opening and seal housing are constructed as seat engaging surfaces.

Description

Carcasa de bomba con unidad de cierre independiente.Pump housing with closing unit Independent.

La invención se refiere a una bomba según el preámbulo de la reivindicación 1.The invention relates to a pump according to the preamble of claim 1.

Las carcasas de las bombas centrífugas se componen por norma general de una o varias piezas de carcasa que rodean el contorno del espacio de trabajo o espacios de trabajo así como de una tapa a través de la que se guía el eje de la bomba de forma cerrada en la carcasa. Dado que existen diferentes tipos de cierres que exigen requisitos diferentes en la configuración de las tapas de carcasa es habitual prever una tapa de carcasa especial para cada tipo de cierre usado en combinación con un tipo de bomba.The housings of the centrifugal pumps are They generally comprise one or more housing parts that surround the outline of the workspace or workspaces as well as of a cover through which the pump shaft is guided closed form in the housing. Since there are different types of closures that require different requirements in the configuration of the housing covers it is usual to provide a special housing cover for each type of closure used in combination with a type of bomb.

Se conoce del informe "Teilevielfalt als Kostenverursacher am Beispiel von Standardkreiselpumpen für Serienfertigung" de H. Timcke en: Industriepumpen - Kompressoren, junio de 1998, pág. 84-93, se prevé una carcasa de cierre específica para una prensaestopa de empaquetadura y un cierre de anillo deslizante, además de la tapa de carcasa. La tapa de carcasa es la misma para las dos variantes de cierre. Por tanto, no es necesario disponer de varias formas de tapa en función de los diferentes tipos de cierre, con lo que se reduce el coste de la tapa tanto en la fabricación como en el almacenamiento.The report "Teilevielfalt als is known Kostenverursacher am Beispiel von Standardkreiselpumpen für Serienfertigung "by H. Timcke in: Industriepumpen - Kompressoren, June 1998, p. 84-93, a housing is provided specific closure for a packing gland and a Sliding ring closure, in addition to the housing cover. Cover The housing is the same for the two closing variants. So, it is not necessary to have several forms of cover depending on the different types of closure, which reduces the cost of the lid both in manufacturing and storage.

La invención se basa en el objetivo de facilitar la construcción de una bomba del tipo mencionado al principio.The invention is based on the objective of facilitating the construction of a pump of the type mentioned at the beginning.

Con este objetivo, la invención prevé que la tapa así como la carcasa de cierre de un cierre que va a accionarse por un medio de bloqueo contengan orificios alineados para la alimentación del medio de bloqueo que desembocan en las superficies del contorno opuestas de la abertura de paso y de la carcasa de cierre situada dentro. Las superficies del contorno mencionadas se realizan como superficies ajustadas y se colocan en el interior del cierre estático.With this aim, the invention provides that the lid as well as the closing housing of a closure to be operated by a locking means contain holes aligned for the feeding of the blocking means that flow into the surfaces of the opposite contour of the passage opening and the housing of closure located inside. The mentioned contour surfaces are performed as tight surfaces and placed inside the static closure

La invención ha demostrado por una parte que, como consecuencia de los orificios alineados en la tapa y en la carcasa de cierre de un cierre accionado por medio de bloqueo, el orificio de la tapa puede existir con independencia de si se usa o no el tipo de cierre que precisa del medio de bloqueo. En un caso se alinea el orificio de la tapa con el orificio correspondiente de la carcasa de cierre; en otro caso, se bloquea el orificio de la tapa por medio de la carcasa de cierre realizada cerrada.The invention has shown on the one hand that, as a result of the holes aligned in the lid and in the closure housing of a closure operated by means of locking, the Cap hole may exist regardless of whether it is used or not the type of closure you need from the locking means. In one case it align the hole in the lid with the corresponding hole in the closure housing; otherwise, the hole in the lid is blocked by means of the closing housing made closed.

Por consiguiente, en una bomba dada es posible cambiar el cierre por otro tipo con la carcasa de cierre sin cambiar también la tapa de la bomba. Por lo general, ni siquiera es necesario quitarla.Therefore, in a given pump it is possible change the closure to another type with the closing housing without changing also the pump cover. Usually it is not even It is necessary to remove it.

Para evitar tener que proveer de un cierre al lugar de transición desde la tapa hasta el orificio de la carcasa de cierre se prevé, según la invención, que los orificios alineados desemboquen en las superficies del contorno opuestas de la abertura de montaje y de la carcasa de cierre, conformándose dichas superficies del contorno como superficies ajustadas. La realización como superficies ajustadas significa que sus dimensiones se aproximan una a otra respectivamente en un estrecho intervalo de tolerancia, de manera que una posible ranura que pudiera quedar entre ellas sea tan pequeña que las pérdidas de medio de bloqueo que tuvieran lugar son despreciables. Se entiende que, en este caso, las superficies del contorno mencionadas se instalan en el interior del cierre estático que cierra la carcasa de cierre frente a la tapa de carcasa, de manera que las eventuales pérdidas por fuga queden en la bomba y no escapen al exterior.To avoid having to provide a closure to transition point from the lid to the hole in the housing closure according to the invention is provided that the holes aligned flow into the opposite contour surfaces of the opening of assembly and of the closing housing, conforming said contour surfaces as tight surfaces. The realization as tight surfaces means that its dimensions are approximate each other respectively in a narrow range of tolerance, so that a possible slot that could remain between them is so small that the losses of blocking means that took place are negligible. It is understood that, in this case, the mentioned contour surfaces are installed in the inside the static closure that closes the front closure housing to the housing cover, so that any losses due to leak remain in the pump and do not escape outside.

A continuación, la invención se explica detalladamente con referencia al dibujo, que ilustra ventajosos ejemplos de realización. Muestran:Next, the invention is explained. in detail with reference to the drawing, which illustrates advantageous Examples of realization They show:

Figura 1 un corte longitudinal de una bomba yFigure 1 a longitudinal section of a pump and

Figuras 2 y 3 fragmentos de la misma bomba con diferentes cierres de eje.Figures 2 and 3 fragments of the same pump with different shaft seals.

La carcasa de la bomba comprende, por un lado, una pieza de carcasa principal 1 que forma el pie 2, el tubo de aspiración 3 y el tubo de presión 4 y, por otro lado, una tapa de carcasa 5 que cierra la pieza de carcasa principal 1 por el lado del accionamiento. A la carcasa de la bomba se le acopla una caja de cojinetes 6 que contiene dos cojinetes 7 para el eje 8, que se guía en la carcasa a través de la tapa 5 y allí soporta el rodete 9. Para el paso del eje 8, la tapa de carcasa 5 contiene una abertura de paso 10 que se cierra por medio de la carcasa de cierre 11 que, a su vez, contiene el cierre 12. La carcasa de cierre 11 está atornillada a la tapa de carcasa 5 por la cara frontal 13 y está cerrada por medio de un cierre estático apropiado.The pump housing comprises, on the one hand, a main housing part 1 that forms the foot 2, the tube of suction 3 and pressure tube 4 and, on the other hand, a cover of housing 5 that closes the main housing part 1 from the side of the drive. A pump housing is attached to the pump housing bearings 6 containing two bearings 7 for shaft 8, which is guided in the housing through the cover 5 and there it supports the impeller 9. For the passage of the shaft 8, the housing cover 5 contains an opening step 10 which is closed by means of the closing housing 11 which, at in turn, it contains the closure 12. The closing housing 11 is screwed to the housing cover 5 by the front face 13 and is closed by means of an appropriate static closure.

En el ejemplo de realización según la figura 1 se conforma el cierre 12 como cierre de anillo deslizante 12a.In the exemplary embodiment according to figure 1, it forms the closure 12 as a sliding ring closure 12a.

En el ejemplo de realización según la figura 2 se trata de una empaquetadura de prensaestopas 12b que está comprimida de forma axial en la cámara de la carcasa de cierre correspondiente 11b por medio de un collar 14. Está provista para la puesta en funcionamiento de un medio de bloqueo que se recupera del espacio de la bomba, cerca del lado de presión, por medio de un orificio 15 y termina en la zona de empaquetadura por un orificio 16 de la carcasa de cierre 11b, que está alineado con el orificio 15. La transición desde el orificio 15 al orificio 16 tiene lugar en la zona de la ranura 17 entre las superficies del contorno opuestas de la carcasa de cierre 11b y de la tapa 5, que es tan pequeña al seleccionar una tolerancia de medición apropiada que la pérdida de fluido de bloqueo que tiene lugar es despreciable.In the exemplary embodiment according to figure 2, it is a stuffing box packing 12b that is compressed axially in the corresponding closing housing chamber 11b by means of a collar 14. It is provided for commissioning operation of a blocking means that is recovered from the space of the pump, near the pressure side, by means of a hole 15 and ends in the packing area through a hole 16 of the housing closure 11b, which is aligned with hole 15. The transition from hole 15 to hole 16 takes place in the area of the groove 17 between opposite contour surfaces of the housing closure 11b and cover 5, which is so small when selecting a appropriate measurement tolerance that fluid loss of blockade that takes place is negligible.

En el ejemplo según la figura 3 el cierre es también un cierre de empaquetadura 12c accionado mediante fluido de bloqueo. A diferencia de la realización según la figura 2, el fluido de bloqueo se alimenta desde el exterior. En este caso, el canal de inyección puede preverse en general exclusivamente en la carcasa de cierre. En el ejemplo de la figura 3 la alimentación tiene lugar por un orificio 18 a la carcasa de cierre correspondiente 11c. El orificio 15, que se encuentra en la tapa de carcasa 5 y que, en la realización según la figura 2, sirve para la alimentación del fluido de bloqueo desde el interior de la bomba, está bloqueado en este caso al desembocar en el contorno cerrado de la carcasa de cierre 11c.In the example according to figure 3 the closure is also a gasket closure 12c driven by fluid from blocking. Unlike the embodiment according to Figure 2, the fluid Lock feeds from outside. In this case, the channel of Injection can generally be provided exclusively in the housing of closing. In the example of figure 3 the feeding takes place by  a hole 18 to the corresponding closure housing 11c. He hole 15, which is located in the housing cover 5 and which, in the embodiment according to figure 2, serves to feed the blocking fluid from inside the pump, is blocked in this case when opening at the closed contour of the housing of closure 11c.

En los tres casos se usan tapas de carcasa 5 conformadas en concordancia. Únicamente los cierres y las carcasas de cierre están conformadas de manera diferente.In all three cases, cover caps 5 are used conformed accordingly. Only closures and housings Closure are shaped differently.

Claims (1)

1. Bomba con un eje (8) de bomba y una carcasa de bomba (1, 5) que comprende una tapa (5) de carcasa, que contiene una abertura de montaje con cierre estático para una carcasa de cierre, que forma una abertura de paso para el eje y está orientada a un cierre (12a, 12b, 12c) de un grupo de cierres determinados (12a, 12b, 12c), de los que al menos uno se acciona por un medio de bloqueo, caracterizada porque la tapa (5) así como la carcasa de cierre (11b) de un cierre (12b) que va a accionarse por el medio de bloqueo contienen orificios (15, 16) alineados para la alimentación del medio de bloqueo que desembocan en las superficies del contorno opuestas de la abertura de montaje (10) y de la carcasa de cierre (11b) situada dentro, estando realizadas dichas superficies del contorno como superficies ajustadas y colocadas en el interior del cierre estático.1. Pump with a pump shaft (8) and a pump housing (1, 5) comprising a housing cover (5), which contains a mounting opening with static closure for a closing housing, which forms an opening of passage for the axis and is oriented to a closure (12a, 12b, 12c) of a group of certain closures (12a, 12b, 12c), of which at least one is operated by a locking means, characterized in that the cover (5) as well as the closing housing (11b) of a closure (12b) that is to be operated by the blocking means contain holes (15, 16) aligned for the feeding of the blocking means that flow into the opposite contour surfaces of the mounting opening (10) and of the closing housing (11b) located inside, said contour surfaces being made as fitted surfaces and placed inside the static closure.
ES00105018T 2000-03-09 2000-03-09 PUMP HOUSING WITH INDEPENDENT CLOSURE UNIT. Expired - Lifetime ES2250037T3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP00105018A EP1132624B1 (en) 2000-03-09 2000-03-09 Pump casing with separate sealing unit

Publications (1)

Publication Number Publication Date
ES2250037T3 true ES2250037T3 (en) 2006-04-16

Family

ID=8168069

Family Applications (1)

Application Number Title Priority Date Filing Date
ES00105018T Expired - Lifetime ES2250037T3 (en) 2000-03-09 2000-03-09 PUMP HOUSING WITH INDEPENDENT CLOSURE UNIT.

Country Status (5)

Country Link
EP (1) EP1132624B1 (en)
AT (1) ATE307296T1 (en)
DE (1) DE50011375D1 (en)
DK (1) DK1132624T3 (en)
ES (1) ES2250037T3 (en)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS588869A (en) * 1981-07-10 1983-01-19 Hitachi Ltd Water sealing device in feed water pump for boiler
SE466925B (en) * 1990-09-03 1992-04-27 Flygt Ab Itt TAETNINGSANORDNING
GB2329432A (en) * 1997-04-18 1999-03-24 Thomas Wilson Ramsay Seal for pump shaft with adjustable barrier fluid pressure

Also Published As

Publication number Publication date
DE50011375D1 (en) 2006-03-02
EP1132624A1 (en) 2001-09-12
EP1132624B1 (en) 2005-10-19
ATE307296T1 (en) 2005-11-15
DK1132624T3 (en) 2006-02-06

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