KR200438267Y1 - Stuffing box structure of centrifugal pump for seawater supply - Google Patents

Stuffing box structure of centrifugal pump for seawater supply Download PDF

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KR200438267Y1
KR200438267Y1 KR2020070000937U KR20070000937U KR200438267Y1 KR 200438267 Y1 KR200438267 Y1 KR 200438267Y1 KR 2020070000937 U KR2020070000937 U KR 2020070000937U KR 20070000937 U KR20070000937 U KR 20070000937U KR 200438267 Y1 KR200438267 Y1 KR 200438267Y1
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South Korea
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packing
pump
amorphous
centrifugal pump
guard
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KR2020070000937U
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Korean (ko)
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이세호
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한국서부발전 주식회사
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D13/00—Pumping installations or systems
    • F04D13/02—Units comprising pumps and their driving means
    • F04D13/06—Units comprising pumps and their driving means the pump being electrically driven
    • F04D13/08—Units comprising pumps and their driving means the pump being electrically driven for submerged use
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D13/00—Pumping installations or systems
    • F04D13/02—Units comprising pumps and their driving means
    • F04D13/06—Units comprising pumps and their driving means the pump being electrically driven
    • F04D13/0606—Canned motor pumps
    • F04D13/0626—Details of the can
    • 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
    • F04D29/02—Selection of particular materials
    • F04D29/026—Selection of particular materials 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
    • F04D29/086—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
    • F04D29/106—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
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/406—Casings; Connections of working fluid especially adapted for liquid pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2210/00—Working fluids
    • F05D2210/10—Kind or type
    • F05D2210/11—Kind or type liquid, i.e. incompressible
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2260/00—Function
    • F05D2260/60—Fluid transfer
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2300/00—Materials; Properties thereof
    • F05D2300/40—Organic materials
    • F05D2300/43—Synthetic polymers, e.g. plastics; Rubber
    • Y—GENERAL 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S415/00—Rotary kinetic fluid motors or pumps

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

Abstract

본 고안은 화력발전소의 회(Ash)처리 설비에서 해수를 공급하는 해수 취수용 원심형 펌프의 스터핑 박스(Stuffing box) 구조에 관한 것으로, 특히 펌프의 회전축에 장착된 슬리이브에 접하는 팩킹 구조를 무정형 팩킹으로 적용시키어 팩킹의 밀봉누수로 인한 펌프 본체와 주변설비의 부식손상을 제거한 해수 취수용 원심형 펌프의 스터핑 박스 구조에 관한 것이다.The present invention relates to a stuffing box structure of a centrifugal pump for seawater intake supplying seawater from an ash treatment facility of a thermal power plant. In particular, the packing structure in contact with the sleeve mounted on the rotating shaft of the pump is amorphous. The present invention relates to a stuffing box structure of a centrifugal pump for seawater intake, which is applied by packing to remove corrosion damage of the pump body and surrounding equipment due to sealing leakage of the packing.

이를 위해 본 고안은 회전축(1)에 설치되는 임펠라(2)와 베어링(3) 사이에 배치되어 이 회전축(1)의 마모를 방지하는 슬리이브(4) 둘레에 밀봉부품들인 랜터링(5)과 그랜드(6) 및 여러 개의 가드 팩킹(7)이 배치되고 이 밀봉부품들을 펌프 하우징(8)으로 감싸아 이루어진 해수 취수용 원심형 펌프에 있어서, 상기 슬리이브(4) 둘레에 위치한 랜터링(5)에 접한 가드 팩킹(7a)과 그랜드(6)에 접한 다른 가드 팩킹(7b) 사이에는 무정형 팩킹(9)이 충전되고, 이 무정형 팩킹(9)은 펌프 하우징(8)의 무정형 팩킹 공급 주입구(10)와 연통되어 이루어진 구조로 되어 있다.To this end, the present invention is arranged between the impeller (2) and the bearing (3) installed on the rotating shaft (1) is a seal ring (5) sealing parts around the sleeve (4) to prevent wear of the rotating shaft (1) And a gland (6) and a plurality of guard packings (7), the sealing parts of which are enclosed in a pump housing (8), in a centrifugal pump for seawater intake, comprising: a lantern ring located around the sleeve (4); An amorphous packing 9 is filled between the guard packing 7a in contact with 5) and the other guard packing 7b in contact with the gland 6, which is an amorphous packing supply inlet of the pump housing 8. It has a structure in communication with (10).

Description

해수 취수용 원심형 펌프의 스터핑 박스 구조{Stuffing box structure of centrifugal pump for seawater supply}Stuffing box structure of centrifugal pump for seawater supply

도 1은 본 고안에 따른 스티핑 박스 구조가 설치된 상태를 나타낸 해수 취수용 펌프의 부분 단면도,1 is a partial cross-sectional view of the seawater intake pump showing a state in which the stiffening box structure is installed according to the present invention,

도 2는 종래 해수 취수용 펌프의 스터핑 박스가 설치된 상태를 나타낸 펌프의 부분 단면도이다.2 is a partial cross-sectional view of a pump showing a state in which a stuffing box of a conventional seawater intake pump is installed.

-도면의 주요부분에 대한 부호의 설명-Explanation of symbols on the main parts of the drawing

1 : 회전축, 2 : 임펠라,1: axis of rotation, 2: impeller,

3 : 베어링, 4 : 슬리이브,3: bearing, 4: sleeve,

5 : 랜터링, 6 : 그랜드(Gland),5: Lantering, 6: Gland,

7,7a,7b : 가드 팩킹(Guard packing),7,7a, 7b: Guard packing,

8 : 펌프 하우징, 9 : 무정형 팩킹,8: pump housing, 9: amorphous packing,

10 : 무정형 팩킹 공급 주입구.10: amorphous packing feed inlet.

본 고안은 화력발전소의 회(Ash)처리 설비에서 해수를 공급하는 해수 취수용 원심형 펌프의 스터핑 박스(Stuffing box) 구조에 관한 것으로, 특히 펌프의 회전축에 장착된 슬리이브에 접하는 팩킹 구조를 무정형 팩킹으로 적용시키어 팩킹의 밀봉누수로 인한 펌프 본체와 주변설비의 부식손상을 제거한 해수 취수용 원심형 펌프의 스터핑 박스 구조에 관한 것이다.The present invention relates to a stuffing box structure of a centrifugal pump for seawater intake supplying seawater from an ash treatment facility of a thermal power plant. In particular, the packing structure in contact with the sleeve mounted on the rotating shaft of the pump is amorphous. The present invention relates to a stuffing box structure of a centrifugal pump for seawater intake, which is applied by packing to remove corrosion damage of the pump body and surrounding equipment due to sealing leakage of the packing.

화력발전소에서 회처리 설비에는 해수를 취수하여 공급하는 원심형 펌프가 설치되어 있는바, 이 원심형 펌프는 해수를 끌어들여 회처리 설비로 공급하게 된다.In the thermal power plant, the ash treatment plant is equipped with a centrifugal pump for collecting and supplying seawater. The centrifugal pump draws seawater and supplies it to the ash treatment plant.

이러한 역할을 수행하는 종래 원심형 펌프의 밀봉구조를 살펴보면, 도 2에 도시된 바와 같이 회전축(101)에 부착된 임펠라(102)와 베어링(103) 사이에는 슬리이브(104)가 배치되고 이 슬리이브(104) 둘레로 랜터링(105)과 그랜드(106) 사이에 가드 팩킹(107, Guard packing)이 위치하면서 펌프 하우징(108)의 밀봉수 주입통로(111)가 이 가드 팩킹(107)에 연통되어 이루어진 구조로 되어 있다.Looking at the sealing structure of the conventional centrifugal pump that performs this role, as shown in Figure 2, the sleeve 104 is disposed between the impeller 102 and the bearing 103 attached to the rotating shaft 101 and the sleeve Guard packing (107) is located between the lantern (105) and the gland (106) around the eve (104) and the sealing water injection passage (111) of the pump housing (108) is connected to the guard packing (107). It is structured in communication.

그러나 상기와 같은 종래 해수 취수용 원심형 펌프의 팩킹 밀봉구조는 펌프와 주변기기의 수선 유지비가 과다하게 소요될 뿐만 아니라 회전축의 마모가 쉽게 진행되고, 밀봉수 주입통로를 통하여 가드 팩킹에 공급되는 밀봉수의 과다 누수로 펌프와 주변기기의 부식손상을 초래하는 문제점이 있었다.However, the packing seal structure of the conventional seawater intake centrifugal pump as described above not only requires excessive repair and maintenance costs of the pump and peripheral devices, but also wears the rotating shaft easily, and the sealing water supplied to the guard packing through the seal water inlet passage. Excessive leakage caused a corrosion damage to the pump and peripherals.

즉, 종래 팩킹 밀봉구조의 단점으로는 다음과 같다.That is, the disadvantages of the conventional packing sealing structure is as follows.

- 고압(12㎏/㎠)의 밀봉수를 사용하기에 밀봉수가 과다 누수됨.-Excessive leakage of sealing water due to the use of high pressure (12㎏ / ㎠) sealing water.

- 그랜드의 조임으로 팩킹이 압착되어 축방향으로 힘이 전달되기에 축의 마모를 촉진시키고 수명을 단축시킴.-The packing is compressed by the tightening of the gland and the force is transmitted in the axial direction, which promotes abrasion of the shaft and shortens the life.

- 마찰로 손상된 슬리브에는 새로운 팩킹을 적용하여도 그랜드 밀봉수 누설량 조절이 불가함.-Grand seal water leakage cannot be adjusted even if new packing is applied to the sleeve damaged by friction.

-과다 누설되어 분출되는 밀봉수가 베어링 하우징 내 유입으로 고가의 베어링 손상 자주발생.-Excessive bearing damage occurs frequently due to excessive leakage and sealing water flow into the bearing housing.

- 밀봉수의 그랜드 누수로 펌프본체 및 주변설비의 부식손상이 심함.-Corrosion damage of pump body and surrounding equipment is severe due to grand leakage of sealing water.

- 펌프의 잦은 분해정비로 인한 수선 유지비용 증가.Increased maintenance costs due to frequent disassembly and maintenance of the pump.

이에 본 고안은 상기와 같은 종래 문제점을 해결하기 위해 안출된 것으로, 회전축의 손상을 감소시키면서 고압의 밀봉수가 불필요함에 따라 이 밀봉수로 인한 누수현상을 제거하여 펌프 본체와 주변설비의 부식현상을 방지하는 해수 취수용 원심형 펌프의 스터핑 박스 구조를 제공함에 그 목적이 있다.Therefore, the present invention was devised to solve the conventional problems as described above. As the sealing water of high pressure is not required while reducing the damage of the rotating shaft, the leakage phenomenon caused by the sealing water is eliminated to prevent corrosion of the pump body and the peripheral equipment. The purpose is to provide a stuffing box structure of the centrifugal pump for seawater intake.

상기와 같은 목적을 달성하기 위한 본 고안은 회전축에 설치되는 임펠라와 베어링 사이에 배치되어 이 회전축의 마모를 방지하는 슬리이브 둘레에 랜터링과 그랜드 및 여러 개의 가드 팩킹이 배치되고 이들 밀봉부품들을 펌프 하우징으로 감싸아 이루어진 해수 취수용 원심형 펌프에 있어서, 상기 슬리이브 둘레에 위치하는 랜터링에 접하는 가드 팩킹과 그랜드에 접하는 가드 팩킹 사이에 무정형 팩킹이 충전되고, 이 무정형 팩킹은 펌프 하우징의 무정형 팩킹 공급 주입구와 연통되어 이루어진 구조로 되어 있다.The present invention for achieving the above object is arranged between the impeller and the bearing installed on the rotating shaft to prevent the wear of the rotating shaft, the lantern and the gland and several guard packings are arranged and pump these sealing parts In a centrifugal pump for seawater intake, which is wrapped in a housing, an amorphous packing is filled between a guard packing in contact with a lantern ring located around the sleeve and a guard packing in contact with a gland, and the amorphous packing is an amorphous packing of the pump housing. It has a structure in communication with the supply inlet.

이하, 본 고안의 바람직한 실시예를 도면을 참고하여 상세히 설명한다.Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings.

도 1은 본 고안이 적용된 해수 취수용 원심형 펌프의 부분 단면도이다.1 is a partial cross-sectional view of the centrifugal pump for seawater intake to which the present invention is applied.

본 고안은 회전축(1)에 설치되는 임펠라(2)와 베어링(3) 사이에 배치되어 이 회전축(1)의 마모를 방지하는 슬리이브(4) 둘레에 밀봉부품들인 랜터링(5)과 그랜드(6) 및 여러 개의 가드 팩킹(7)이 배치되고 이 밀봉부품들을 펌프 하우징(8)으로 감싸아 이루어진 해수 취수용 원심형 펌프에 있어서, 상기 슬리이브(4) 둘레에 위치한 랜터링(5)에 접한 가드 팩킹(7a)과 그랜드(6)에 접한 다른 가드 팩킹(7b) 사이에는 무정형 팩킹(9)이 충전되고, 이 무정형 팩킹(9)은 펌프 하우징(8)의 무정형 팩킹 공급 주입구(10)와 연통되어 이루어진 구조로 되어 있다.The present invention is arranged between the impeller 2 and the bearing 3 installed on the rotating shaft 1 to seal the lantern ring 5 and the gland which are sealing parts around the sleeve 4 which prevents wear of the rotating shaft 1. (6) and a plurality of guard packings (7) in which the sealing parts are enclosed in a pump housing (8), the centrifugal pump for seawater intake comprising: a lantern (5) located around the sleeve (4) An amorphous packing (9) is filled between the guard packing (7a) in contact with the other guard packing (7b) in contact with the gland (6), and the amorphous packing (9) is an amorphous packing supply inlet (10) of the pump housing (8). ) Is in communication with the structure.

여기서 상기 무정형 팩킹(9)의 재질은 섬유질과 테프론 및 윤활유로 이루어져 있다.Here, the material of the amorphous packing 9 is made of fiber, teflon and lubricating oil.

이와 같이 본 고안에 따른 해수 취수용 원심형 펌프의 스터핑 박스 구조는 종래 펌프의 밀봉부품들의 구조를 개선하여 무정형 팩킹(9)을 적용시키고, 밀봉수가 필요없는 이 무정형 팩킹(9)을 펌프 하우징(8)의 무정형 팩킹 공급 주입구(10)를 통하여 주입이 가능하도록 되어 있다.Thus, the stuffing box structure of the centrifugal pump for seawater intake according to the present invention improves the structure of the sealing parts of the conventional pump to apply the amorphous packing (9), and the amorphous packing (9) which does not need the sealing water is provided in the pump housing ( Injection is made possible through the amorphous packing supply inlet 10 of 8).

상기와 같은 본 고안은 해수 취수용 원심형 펌프의 밀봉구조인 스터핑 박스 구조를 무정형 팩킹을 적용시킴에 따라 종래와 같이 고압의 밀봉수가 불필요하여 밀봉수의 누수로 인한 펌프 본체와 주변설비의 부식을 방지할 뿐만 아니라, 회전축의 손상도 저감시키어 펌프의 안정적인 운전이 가능한 효과 등을 지니고 있다.According to the present invention, the amorphous packing is applied to the stuffing box structure, which is a sealing structure of the centrifugal pump for seawater intake, so that high pressure sealing water is unnecessary as in the prior art, thereby preventing corrosion of the pump main body and peripheral equipment due to leakage of the sealing water. In addition to preventing, the damage of the rotating shaft is also reduced to have the effect of stable operation of the pump.

Claims (2)

회전축(1)에 설치되는 임펠라(2)와 베어링(3) 사이에 배치되어 이 회전축(1)의 마모를 방지하는 슬리이브(4) 둘레에 밀봉부품들인 랜터링(5)과 그랜드(6) 및 여러 개의 가드 팩킹(7)이 배치되고 이 밀봉부품들을 펌프 하우징(8)으로 감싸아 이루어진 해수 취수용 원심형 펌프에 있어서, Lanterning 5 and gland 6, which are sealing parts, are arranged between the impeller 2 and the bearing 3 installed on the rotating shaft 1, and prevent the wear of the rotating shaft 1. And a plurality of guard packings (7) arranged in such a way that the sealing parts are wrapped in a pump housing (8). 상기 슬리이브(4) 둘레에 위치한 랜터링(5)에 접한 가드 팩킹(7a)과 그랜드(6)에 접한 다른 가드 팩킹(7b) 사이에는 무정형 팩킹(9)이 충전되고, 이 무정형 팩킹(9)은 펌프 하우징(8)의 무정형 팩킹 공급 주입구(10)와 연통되어 이루어진 것을 특징으로 하는 해수 취수용 원심형 펌프의 스터핑 박스 구조.An amorphous packing 9 is filled between the guard packing 7a in contact with the lanterning 5 located around the sleeve 4 and the other guard packing 7b in contact with the gland 6, and this amorphous packing 9 ) Is a stuffing box structure of the centrifugal pump for seawater intake, characterized in that it is made in communication with the amorphous packing supply inlet (10) of the pump housing (8). 제 1항에 있어서, 상기 무정형 팩킹(9)의 재질은 섬유질과 테프론 및 윤활유로 이루어진 것을 특징으로 하는 해수 취수용 원심형 펌프의 스터핑 박스 구조.The stuffing box structure of the centrifugal pump for seawater intake according to claim 1, wherein the amorphous packing material is made of fiber, teflon and lubricating oil.
KR2020070000937U 2007-01-18 2007-01-18 Stuffing box structure of centrifugal pump for seawater supply KR200438267Y1 (en)

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