KR101397629B1 - Adjusting apparatus of the gap in underwater pump - Google Patents

Adjusting apparatus of the gap in underwater pump Download PDF

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Publication number
KR101397629B1
KR101397629B1 KR1020130157871A KR20130157871A KR101397629B1 KR 101397629 B1 KR101397629 B1 KR 101397629B1 KR 1020130157871 A KR1020130157871 A KR 1020130157871A KR 20130157871 A KR20130157871 A KR 20130157871A KR 101397629 B1 KR101397629 B1 KR 101397629B1
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KR
South Korea
Prior art keywords
suction cover
impeller
underwater pump
gap
casing
Prior art date
Application number
KR1020130157871A
Other languages
Korean (ko)
Inventor
이희철
Original Assignee
(주)오비스
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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Publication date
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Priority to KR1020130157871A priority Critical patent/KR101397629B1/en
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Publication of KR101397629B1 publication Critical patent/KR101397629B1/en

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04DNON-POSITIVE-DISPLACEMENT PUMPS
    • F04D13/00Pumping installations or systems
    • F04D13/02Units comprising pumps and their driving means
    • F04D13/06Units comprising pumps and their driving means the pump being electrically driven
    • F04D13/08Units comprising pumps and their driving means the pump being electrically driven for submerged use
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04DNON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00Details, component parts, or accessories
    • F04D29/40Casings; Connections of working fluid
    • F04D29/406Casings; Connections of working fluid especially adapted for liquid pumps
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04DNON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00Details, component parts, or accessories
    • F04D29/40Casings; Connections of working fluid
    • F04D29/42Casings; Connections of working fluid for radial or helico-centrifugal pumps
    • F04D29/44Fluid-guiding means, e.g. diffusers
    • F04D29/445Fluid-guiding means, e.g. diffusers especially adapted for liquid pumps
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04DNON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00Details, component parts, or accessories
    • F04D29/40Casings; Connections of working fluid
    • F04D29/42Casings; Connections of working fluid for radial or helico-centrifugal pumps
    • F04D29/44Fluid-guiding means, e.g. diffusers
    • F04D29/46Fluid-guiding means, e.g. diffusers adjustable
    • F04D29/466Fluid-guiding means, e.g. diffusers adjustable especially adapted for liquid fluid pumps
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16BDEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS, WEDGES, JOINTS OR JOINTING
    • F16B5/00Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them
    • F16B5/02Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them by means of fastening members using screw-thread
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05DINDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2210/00Working fluids
    • F05D2210/10Kind or type
    • F05D2210/11Kind or type liquid, i.e. incompressible
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05DINDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2260/00Function
    • F05D2260/30Retaining components in desired mutual position
    • F05D2260/31Retaining bolts or nuts
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10STECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S415/00Rotary kinetic fluid motors or pumps
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10STECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S417/00Pumps

Abstract

The present invention relates to an underwater pump impeller suction cover gap adjustment device, which comprises a motor; A drive shaft rotated by the motor; An impeller mounted on the drive shaft; A suction cover mounted adjacent to an end of the impeller; And a casing for supporting the suction cover. And the suction cover is fastened to the casing by a screw thread.
With this configuration, the gap can be easily adjusted even in the field by rotating the suction cover having the threaded portion.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to an underwater pump impeller suction cover gap adjustment device,
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an underwater pump, and more particularly, to an underwater pump impeller suction cover gap adjustment device capable of maximizing the efficiency of a pump by maintaining a gap between an impeller and a suction cover in an optimal state.
In general, submersible pumps are installed in places such as a water purification plant, a wastewater treatment plant, a basement where flooding is likely to occur, or fish farms containing a large amount of water, for discharging water to the outside.
Such submersible pumps are classified into submersible submersible pumps, submersible submersible pumps and ground-based pumps.
The underwater pump includes a motor, a drive shaft rotated by the motor, an impeller mounted on the drive shaft, a suction cover mounted adjacent to the end of the impeller, and a casing supporting the suction cover.
That is, in the case of a SEMI OPEN type impeller, which is the most common type in a pump, the flow rate and head can be maximized when the gap between the impeller and the suction cover is 0.3 to 0.5 mm. Therefore, the water pump will be shipped with the pump adjusted at 0.3 ~ 0.5mm when shipped from the factory.
When the underwater pump is used for 1 to 2 years, the gap between the impeller and the suction cover is opened to 0.5 mm or more due to friction and corrosion caused by foreign substances such as sand, and when the gap is opened, The efficiency is lowered.
When the gap between the impeller and the suction cover is increased by the use for a long period of time, a complicated process is performed in which the gap is adjusted by inserting a gap between the impeller and the suction cover after dismantling the underwater pump, .
That is, in order to control the gap between the impeller and the suction cover, a plurality of gaps having different thicknesses are required. Also, the method using the gap is disassembled and assembled by an expert, There is a problem to repair.
Document 1: Published Patent Application No. 10-2010-0030537 (published on Mar. 18, 2010) Document 2: Registration Patent No. 10-0771210 (registered on October 23, 2007) Document 3: Registration Patent Publication No. 10-1221056 (published on March 23, 2013) Document 4: Published Japanese Patent Application No. 2001-0109241 (published Dec. 2001)
SUMMARY OF THE INVENTION Accordingly, the present invention has been made to solve the above-mentioned problems occurring in the prior art, and it is an object of the present invention to provide an air conditioner which does not need the gap and easily adjusts the gap between the impeller and the suction cover Which can be applied to an underwater pump impeller suction cover gap adjustment device.
According to an aspect of the present invention, there is provided an underwater pump impeller suction cover gap adjusting apparatus comprising: a motor; A drive shaft rotated by the motor; An impeller mounted on the drive shaft; A suction cover mounted adjacent to an end of the impeller; And a casing for supporting the suction cover, wherein the suction cover and the casing are provided with a submerged pump which is fastened by a thread, and the suction cover comprises: a tubular body; A thread formed on an outer circumferential surface of the body; A fastening plate mounted on an upper end of the body in a disk shape; An extension plate extending outward from a lower end of the body; And a bolt hole formed in the extension plate.
delete
Further, the adhesion plate is characterized in that a suction port for sucking water is formed.
In the present invention, the casing is provided with a bolt groove at a position corresponding to a bolt hole formed in the expansion plate.
According to another aspect of the present invention, a support for supporting the suction cover is further formed at a lower portion of the suction cover.
And a through hole is formed in the support plate at a position corresponding to the bolt hole formed in the extension plate.
Further, the supporting base is characterized in that an absorption port for absorbing water is formed.
According to another aspect of the present invention, the bolt hole, the bolt groove, and the through hole are each formed by six holes.
According to the above-described structure of the present invention, a plurality of gaps for adjusting the gap are not required, and the gap can be easily adjusted even in the field as the suction cover with the thread is rotated.
Also, even when assembling at a factory, a separate gap adjustment process is required for each pump according to the degree of processing and the tolerance of the impeller. However, since the time required for the separation and disassembly for separate gap adjustment is reduced by using the present invention, .
1 is a front view of an underwater pump according to an embodiment of the present invention;
2 is a sectional view of the submersible pump shown in Fig.
3 is a cross-sectional view of the suction cover and the supporting member separated from each other in Fig.
4 is a perspective view of the impeller shown in Fig.
Fig. 5 is a perspective view of the suction cover shown in Fig. 2; Fig.
FIG. 6 is a perspective view of the suction cover shown in FIG. 5 viewed from another direction; FIG.
7 is a view for explaining a use state;
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Reference will now be made in detail to the preferred embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the like elements throughout.
1 is a front view of a submersible pump according to an embodiment of the present invention, and Fig. 2 is a sectional view of a submersible pump.
As shown in the drawings, the underwater pump 10 according to the present invention, indicated at 10, comprises a motor 20; A drive shaft (30) rotated by the motor (20); An impeller 40 mounted on the drive shaft 30; A suction cover (50) mounted adjacent to an end of the impeller (40); And a casing 60 for supporting the suction cover 50. The underwater pump 10 includes an impeller 40 of a semi-open type. A support stand (70) is installed at the lower end of the suction cover (50).
As shown in FIG. 3, the suction cover 50 and the support 70 are detachable from the casing 60.
4, a plurality of induction projections 41 are formed on the lower surface of the impeller 40. When the impeller 40 is rotated by the drive shaft 30, The water is rotated, and the rotating water is discharged to the outside through the elbow tube 200 by centrifugal force and thrust.
The suction cover 50 will be described with reference to FIGS. 5 and 6. FIG.
FIG. 5 is a perspective view of the suction cover 50, and FIG. 6 is a perspective view of the suction cover 50 viewed from another direction.
As shown in the drawing, the suction cover 50 is composed of a body 51, a fastening plate 55, an extension plate 53, and the like. The body 51 is in the shape of a circular tube, and the tightening plate 55 is integrally formed at one end of the tubular body 51 in the form of a circular plate as shown in the drawing. The contact plate 55 is formed with a suction port 57 and is provided with a passage through which water can be sucked from the lower part to the upper part.
5, a thread 5 is formed on the outer circumferential surface of the body 51, and the thread 5 is fastened to the casing 60. As shown in FIG. Accordingly, when the suction cover (50) fastened to the casing (60) is rotated, the suction cover (50) is closely contacted with the impeller (40)
And an expansion plate 53 extending outward from a lower end of the body 51. The extension plate 53 has a plurality of bolt holes 59 formed therein.
3, a support 70 for supporting the suction cover 50 is mounted on the lower portion of the suction cover 50. The suction port 73 for absorbing water is attached to the support 70, So that when the impeller 40 operates, it is lifted to the outside through the elbow pipe 200 through the absorption port 73 and the suction port 57. [
A bolt hole 61 is formed in the casing 60 at a position corresponding to the bolt hole 59 formed in the extension plate 53. The bolt hole 61 formed in the extension plate 53 59 are formed in positions corresponding to the through holes 71, Accordingly, the support 70 and the suction cover 50 can be fixed to the casing 60 by the bolts 100 as shown in FIG.
The screw 5 formed in the suction cover 50 is made of a fine screw and the bolt hole 59 is formed of six bolts, the suction cover 50, The distance between the first and second electrodes 40 can be finely adjusted. When the bolt holes 59 are formed in six, the bolt grooves 61 and the through holes 71 should be formed six by six.
According to the above configuration of the present invention, the gap adjustment between the impeller 40 and the suction cover 50 will be described with reference to FIG.
When the efficiency of the pump 10 drops due to the foreign material or the gap between the impeller 40 and the suction cover 50 due to foreign substances or corrosion, the support 70 is detached using the bolts 100, The suction cover 50 can be rotated in the casing 60 by the fastened thread 5.
7, the state in which the suction cover 50 is spaced apart from the casing 60 is exaggerated.
Since the six bolt grooves 61 formed in the casing 60 are formed, the suction cover 50 can rotate by 360/6 = 60 °. The operator measures the gap between the impeller 40 and the tightening plate 55 of the suction cover 50 by using the thickness gauge while rotating the suction cover 50. [ When the gap is 0.3 to 0.5 mm, the rotation of the suction cover 50 is stopped and the suction cover 50 and the support 70 are fixed by the bolt 100 as shown in FIG. 2 do.
It is preferable to form the thread 5 so that the conveying distance of the suction cover 50 fastened to the casing 60 is within 0.3 to 0.5 mm when the suction cover 50 rotates 60 °.
As described above, the present invention is not limited to the above-described embodiment, and it is to be understood that the present invention is not limited to the above-described embodiments, It will be understood by those of ordinary skill in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined in the appended claims.
10: Submersible pump 20: Motor
30: drive shaft 40: impeller
41: guide stones 50: suction cover
51: body 53: extension plate
55: close plate 57: inlet
59: bolt hole 60: casing
61: bolt groove 70:
71: through hole 73:
100: Bolt 500: Elbow pipe

Claims (8)

  1. A motor 20; A drive shaft (30) rotated by the motor (20); An impeller (40) mounted on the drive shaft (30); A suction cover (50) mounted adjacent to an end of the impeller (40); And a casing 60 for supporting the suction cover 50. The suction cover 50 and the casing 60 are connected to each other by a screw thread 5,
    The suction cover (50) includes a tubular body (51); A thread 5 formed on an outer circumferential surface of the body 51; (55) mounted on the upper end of the body (51) in the shape of a disk; An extension plate 53 extending outward from a lower end of the body 51; And a bolt hole (59) formed in the extension plate (53).
  2. delete
  3. The underwater pump impeller suction cover gap adjusting device according to claim 1, wherein the contact plate (55) is provided with a suction port (57) for sucking water.
  4. The underwater pump impeller suction cover gap adjusting device according to claim 1, wherein a bolt groove (61) is formed in the casing (60) at a position corresponding to a bolt hole (59) formed in the extension plate (53) .
  5. The underwater pump impeller suction cover gap adjusting device according to claim 4, wherein a support base (70) for supporting the suction cover (50) is further formed at a lower portion of the suction cover (50).
  6. The underwater pump impeller suction cover gap adjusting device according to claim 5, wherein the support base (70) is provided with a through hole (71) at a position corresponding to a bolt hole (59) formed in the extension plate (53) .
  7. The underwater pump impeller suction cover gap adjustment device according to claim 6, wherein the support stand (70) is provided with an absorption port (73) for absorbing water.
  8. The underwater pump impeller suction cover gap adjusting device according to claim 6, wherein the bolt hole (59), the bolt groove (61), and the through hole (71) are formed six each.
KR1020130157871A 2013-12-18 2013-12-18 Adjusting apparatus of the gap in underwater pump KR101397629B1 (en)

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101487435B1 (en) 2014-06-27 2015-01-29 한국그런포스펌프(주) A clearance with rhe pump
KR101695444B1 (en) 2016-06-03 2017-01-23 주식회사 호빌스 Pump
KR101701159B1 (en) 2016-05-30 2017-02-01 (주)지천펌프공업 a inlet cover and a pump having the same
KR101790957B1 (en) 2017-09-07 2017-10-27 고일영 Structure of Suction Cover for Preventing Sludge Clogging of Underwater Pump
KR20190025092A (en) * 2017-08-28 2019-03-11 (주)대진정공 A Submerged Motor Pump
KR20200037611A (en) 2018-10-01 2020-04-09 한세구 Submersible pump with suction cover of sludge discharge type
KR20200108579A (en) 2019-03-11 2020-09-21 효성아쿠아텍(주) Submergible Motor Pump that Allows for Adjustment of Clearance

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR920008623B1 (en) * 1989-03-02 1992-10-02 서전통상 주식회사 Submersible propeller pump
JP2008019731A (en) 2006-07-11 2008-01-31 Shin Meiwa Ind Co Ltd Automatically operable submerged pump
KR101130708B1 (en) 2011-09-01 2012-04-02 윤상근 A wearing control type submerged motor pump

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR920008623B1 (en) * 1989-03-02 1992-10-02 서전통상 주식회사 Submersible propeller pump
JP2008019731A (en) 2006-07-11 2008-01-31 Shin Meiwa Ind Co Ltd Automatically operable submerged pump
KR101130708B1 (en) 2011-09-01 2012-04-02 윤상근 A wearing control type submerged motor pump

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101487435B1 (en) 2014-06-27 2015-01-29 한국그런포스펌프(주) A clearance with rhe pump
KR101701159B1 (en) 2016-05-30 2017-02-01 (주)지천펌프공업 a inlet cover and a pump having the same
KR101695444B1 (en) 2016-06-03 2017-01-23 주식회사 호빌스 Pump
KR20190025092A (en) * 2017-08-28 2019-03-11 (주)대진정공 A Submerged Motor Pump
KR101977596B1 (en) * 2017-08-28 2019-09-04 (주)대진정공 A Submerged Motor Pump
KR101790957B1 (en) 2017-09-07 2017-10-27 고일영 Structure of Suction Cover for Preventing Sludge Clogging of Underwater Pump
KR20200037611A (en) 2018-10-01 2020-04-09 한세구 Submersible pump with suction cover of sludge discharge type
KR20200108579A (en) 2019-03-11 2020-09-21 효성아쿠아텍(주) Submergible Motor Pump that Allows for Adjustment of Clearance

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