WO2020005184A2 - Corps de pompe - Google Patents

Corps de pompe Download PDF

Info

Publication number
WO2020005184A2
WO2020005184A2 PCT/TR2019/050341 TR2019050341W WO2020005184A2 WO 2020005184 A2 WO2020005184 A2 WO 2020005184A2 TR 2019050341 W TR2019050341 W TR 2019050341W WO 2020005184 A2 WO2020005184 A2 WO 2020005184A2
Authority
WO
WIPO (PCT)
Prior art keywords
pump
fluid
front cover
rotor
rear cover
Prior art date
Application number
PCT/TR2019/050341
Other languages
English (en)
Other versions
WO2020005184A3 (fr
Inventor
Osman Küçük
Original Assignee
Kuecuek Osman
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 Kuecuek Osman filed Critical Kuecuek Osman
Publication of WO2020005184A2 publication Critical patent/WO2020005184A2/fr
Publication of WO2020005184A3 publication Critical patent/WO2020005184A3/fr

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
    • F04D29/40—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
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
    • F04D29/44—Fluid-guiding means, e.g. diffusers
    • F04D29/445—Fluid-guiding means, e.g. diffusers especially adapted for liquid pumps
    • F04D29/448—Fluid-guiding means, e.g. diffusers especially adapted for liquid pumps bladed diffusers
    • 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

Definitions

  • the invention relates to a body which enables the pumps used for transferring the fluid materials such as water, petrol, fuel, oil, chemical fluids etc. to operate in a more effective manner.
  • the invention is particularly related to a body which increases the performance of the centrifugal pumps and minimizes the friction losses, has a discrete structure in a manner such that the periodical examinations are facilitated against possible failures, wearing and corrosion risks, is obtained by means of a machining method.
  • the pumps are defined as the machines which provide the passage of fluids from one point to another point. Carrying the fluids can be performed by means of different methods such as by a piston that moves forwardly and backwardly (piston pump), by a shovel rotor which rotates rapidly (centrifugal pump), by spraying pressurized water (water jet pumps, hydraulic pressure pumps), by spraying pressurized steam or air (injector).
  • the pumps are basically separated into two main groups; volumetric and centrifugal. In centrifugal pumps that consists of a winged propeller (rotor) included within a body, the fluid is transferred to the middle portion of the rotor from an inlet.
  • the pressure is obtained by means of rotating the fluid with the rotor which converts mechanical energy into hydraulic energy and has a plurality of curled wings.
  • the fluid is carried away to the center of the rotor and it travels around the rotors by means of the centrifugal forces. Structurally, it is cost effective, durable and simple and in virtue of its high speed, it allows to connect the pump directly to an asynchronous engine.
  • Centrifugal pumps enable a continuous fluid flow and the flow can be reduced without giving any damage to the pump. Due to the vacuum created on the suction side of the rotor, the fluid enters between the paddles of the rotor. The fluid that passes between the paddles of the rotor, gains a major tangential speed by means of the rotational movements of the rotor.
  • the fluid between the channels limited by the paddles and the front and rear profiles of the rotor is impelled with the effect of centrifugal forces occurred during the rotational motion of the rotor towards its exit portion.
  • the motion created in this manner enables continuous flow of the fluid and suction around the suction portion of the pump.
  • the kinetic energy included within the fluid which leaves the paddles of the rotor in a major tangential speed is converted into pressure energy in the gap of the scroll between the fixed diffuser vanes.
  • the centrifugal pump does not have any discharge valve. The highest pressure is obtained by means of a determined rotational speed.
  • Centrifugal pumps are suitable to be used in all fluids.
  • centrifugal pumps Another problem encountered with said centrifugal pumps is that as a result of producing the pump in a single piece, when a failure, wearing or breaking occurs, the integral structure is required to be replaced completely instead of replacing only the relevant section. For example due to a wearing occurred on the internal portion, the whole pump body has to be changed. Since this situation increases the cost and duration of maintenance, repair, thus it creates a major disadvantage. In the current applications also another disadvantage is that the casting methods of the pump are troublesome and inconvenient.
  • a centrifugal pump comprises a pump body or case, a rotor connected to a shaft, an upper removable cover and resistance rings connected to the rotor, rotated with the rotor.
  • both fixed seal rings and bearings for supporting the rotary portion of the pump are mounted on two sider covers which can be removed from its place, are arranged on both sides of the pump body.
  • the present invention relates to a body which fulfills the above mentioned requirements, eliminates all disadvantages and brings some additional advantages and enables the pumps used for transferring the fluid materials such as water, petrol, fuel, oil, chemical fluids etc. to operate in a more effective manner.
  • the aim of the invention is to enable ease of both production and assembly by means of producing the developed body in two pieces and with machining production method.
  • the aim of the invention is to enable maximizing the surface quality by means of making discrete production of the body with machining method which is a more sensitive processing method than the casting processes, minimizing the friction losses within the pump together with the sensitivity of the surface quality and thus increasing the performance.
  • Another aim of the invention is to enable the directive paddles within the centrifugal pump to reach the nominal values which provides maximum performance between 0-180° paddle angles by means of processing up to the most sensitive and optimum degrees, by virtue of the two- piece production process of the developed body.
  • Another aim of the invention is to maximize the rotor angles approximately to 20 to 50 degrees by means of producing the developed body in two-pieces.
  • Another aim of the invention is to maximize the centrifugal forces within the pump by means of maximizing the performance of the rotor angles of the developed body between 20 to 50 degrees.
  • Another aim of the invention is to contribute to the economy of the country by means of continuing usage of the product by replacing only the damaged portion in case a possible failure, corrosion or wearing occurs, thus eliminating unnecessary expenses, by virtue of the two-piece production process of the developed body.
  • Another aim of the invention is to facilitate the periodical examinations against possible failures, wearing and corrosion risks in the rotor and paddles, by virtue of the two-piece production process of the developed body.
  • Figure-1 is a side schematic general view of the assembled body
  • Figure-2 is a schematic view of the paddles within the body
  • Figure-3 is a schematic general view of the assembled body.
  • the body (10) which is produced in two pieces, enables the pumps used for transferring the fluid materials such as water, petrol, fuel, oil, chemical fluids etc. to operate in a more effective manner is described in an illustrative manner only to clarify the subject matter and in a non-limiting manner without creating any limiting effect.
  • the body (10) shown in Figure 1 is obtained with a machining production method which increases the performance of the centrifugal pumps and minimizes the friction losses, has a discrete structure in a manner such that the periodical examinations are facilitated against possible failures, wearing and corrosion risks.
  • the body (10) in which said fluid is energized and transferred consists of a front cover (1 1 ) and a rear cover (12) which are closed onto each other and on which paddles (14) shown in Figure 2 are located in the internal portion. Said front cover (1 1 ) and rear cover (12) are mounted to each other by means of the connecting element (13) to each other. When said front cover (1 1 ) and rear cover (12) are engaged, a closed volume is created for energizing the fluid.
  • the fluid which is send through the suction line with a predetermined pressure and flow enters to the body (10) from the entrance section in the middle portion of the front cover (1 1 ) and rear cover (12) shown in Figure 3. Subsequently, the fluid which enters to the paddles (14) that are both located on the front cover (1 1 ) and rear cover (12) by means of the rotor included within, is dispersed to the exit of the body (10) which is formed together with the front cover (1 1 ) and the rear cover (12) by the centrifugal effect. During this dispersion, the fluid which reaches to high speeds, exits out of the pump structure together with a major force. Said front cover (1 1 ) and rear cover (12) are connected to each other with a determined tightening torque with a connecting element (13) during the assembly process.
  • said inventive body (10) is provided to produce the pump bodies by means of machining production method in two pieces instead of producing with casting methods in single piece.
  • machining production method By means of preferring said machining production method, a great convenience is provided in terms of both production and assembly.
  • the most important advantage of said body (10) is that the surface quality is maximized with the machining production which is a more sensitive processing method than the casting processes. Together with the sensitivity of the surface quality, the friction losses within the pump are minimized, thus the performance to be obtained from the pump is maximized.
  • the directive paddles In two-piece production process, the directive paddles
  • centrifugal pump within the centrifugal pump are processed up to the most sensitive and optimum degrees, this they can reach to the nominal values which provides maximum performance between the 0-180° paddle (14) angles.
  • the highest performance rotor angle is between approximately 20 to 50 degrees.
  • the rotor angles can be processed between the values in direction of the demands of the final user and the required technical characteristics. Therefore the centrifugal forces within the pump are enabled to reach the maximum values.

Landscapes

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

Abstract

L'invention concerne un corps (10), produit en deux pièces, et permet que les pompes utilisées pour le transfert de substances fluides telles l'eau, le pétrole, le carburant, l'huile, les fluides chimiques, etc. fonctionnent de manière plus efficace. Ledit corps (10) est obtenu au moyen d'un procédé de production par usinage qui augmente la performance des pompes centrifuges et réduit au minimum les pertes par friction, donnant lieu à une structure séparée facilitant les examens périodiques pour prévenir les défaillances, l'usure et les risques de corrosion.
PCT/TR2019/050341 2018-05-21 2019-05-16 Corps de pompe WO2020005184A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
TR2018/07172 2018-05-21
TR201807172 2018-05-21

Publications (2)

Publication Number Publication Date
WO2020005184A2 true WO2020005184A2 (fr) 2020-01-02
WO2020005184A3 WO2020005184A3 (fr) 2020-03-19

Family

ID=68984655

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/TR2019/050341 WO2020005184A2 (fr) 2018-05-21 2019-05-16 Corps de pompe

Country Status (1)

Country Link
WO (1) WO2020005184A2 (fr)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB867802A (en) * 1959-07-18 1961-05-10 Mervyn Joseph Alexander Carrie Improvements in rotary gravel or like pumps
US6953321B2 (en) * 2002-12-31 2005-10-11 Weir Slurry Group, Inc. Centrifugal pump with configured volute
BRPI0910008B1 (pt) * 2008-06-13 2019-10-01 Weir Minerals Australia Ltd Retentor de lubrificante para uso em um conjunto de mancal de bomba, e, conjunto de mancal de bomba
US10377097B2 (en) * 2016-06-20 2019-08-13 Terumo Cardiovascular Systems Corporation Centrifugal pumps for medical uses

Also Published As

Publication number Publication date
WO2020005184A3 (fr) 2020-03-19

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