KR940000697Y1 - Mechanical sealing - Google Patents

Mechanical sealing Download PDF

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Publication number
KR940000697Y1
KR940000697Y1 KR2019910011433U KR910011433U KR940000697Y1 KR 940000697 Y1 KR940000697 Y1 KR 940000697Y1 KR 2019910011433 U KR2019910011433 U KR 2019910011433U KR 910011433 U KR910011433 U KR 910011433U KR 940000697 Y1 KR940000697 Y1 KR 940000697Y1
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KR
South Korea
Prior art keywords
casing
gland
mechanical sealing
ring
grand
Prior art date
Application number
KR2019910011433U
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Korean (ko)
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KR930002921U (en
Inventor
송진희
Original Assignee
주식회사 유 환
송진희
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Priority to KR2019910011433U priority Critical patent/KR940000697Y1/en
Publication of KR930002921U publication Critical patent/KR930002921U/en
Application granted granted Critical
Publication of KR940000697Y1 publication Critical patent/KR940000697Y1/en

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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
    • F04D29/12—Shaft sealings using sealing-rings
    • F04D29/126—Shaft sealings using sealing-rings especially adapted for liquid pumps

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Sealing (AREA)
  • Sealing Devices (AREA)

Abstract

내용 없음.No content.

Description

메카니컬시일링 장치Mechanical sealing device

제1도는 종래 메카니컬시일링 장치의 단면도.1 is a cross-sectional view of a conventional mechanical sealing device.

제2도는 본 고안의 적용되는 원심펌프의 일부절취 단면도.2 is a partial cross-sectional view of the centrifugal pump to which the present invention is applied.

제3도는 본 고안의 분해 사시도.3 is an exploded perspective view of the present invention.

제4도는 본 고안의 단면도.4 is a cross-sectional view of the present invention.

* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings

2 : 회전축 3 : 칼라2: rotating shaft 3: collar

4 : 시일링 5 : 압축링4: sealing ring 5: compression ring

6 : 스프링 7 : 그랜드6: spring 7: grand

8 : 충전물 9 : 수나사8: Filling 9: Male thread

10 : 케이싱 11 : 삽입공10 casing 11: insertion hole

12 : 암나사12: female thread

본 고안은 펌프케이싱(pump casing)을 관통하는 축의 틈새에서 발생하는 누설을 방지하기 위한 메카니컬시일(mechanical seal)장치에 관한 것이다.The present invention relates to a mechanical seal device for preventing leakage occurring in the gap of the shaft through the pump casing.

일반적으로 원심펌프에서는 케이싱 속에서 회전차를 회전시키기 때문에 축이 케이싱을 관통하게 되는데 흡입부를 관통하는 곳에서는 외기가 펌프내로 침입하기 쉽고 송출측에서는 펌프내부의 압력수가 누설될 우려가 있어서 이를 방지하기 위한 수단으로 패킹박스, 메카니컬시일 등과 같은 축봉장치가 사용되고 있다.In general, the centrifugal pump rotates the rotor in the casing, so the shaft penetrates the casing. Where the air passes through the suction section, outside air easily penetrates into the pump, and there is a possibility that pressure water inside the pump may leak from the discharge side. As a means, a sealing device such as a packing box and a mechanical seal is used.

패킹박스는 패킹그랜드(packing gland)의 마찰압력에 의한 과열때문에 패킹이 급속히 마모되기 때문에 적은 양은 누설을 허용하게 되는 비효율적인 것이다.The packing box is inefficient because the packing wears rapidly due to overheating due to the frictional pressure of the packing gland.

화학공업에 사용될때와 같이 여러가지 종류의 액체를 취급하는 펌프의 경우는 누설을 완전히 방지하기 위하여 메카니컬 시일이 채택되고 있다. 메카니컬 시일의 원리는 회전축과 케이싱에 설치된 고체가 축에 수직은 평면에서 서로 관계운동을 가지면서 접촉을 유지하고 이 접촉면에서 누설을 방지하는 방법이다.In the case of pumps that handle different types of liquids, such as those used in the chemical industry, mechanical seals are employed to completely prevent leakage. The principle of the mechanical seal is a method in which the solids installed on the rotating shaft and the casing maintain contact with each other in a plane perpendicular to the axis while maintaining contact and preventing leakage at this contact surface.

종래의 메카니컬 시일 장치는 제1도에서 보는 바와같이 회전축(20)에 고정된 칼라(21)가 축패킹(22)과 시일링(23)에 접속되는 압축링(24)사이에 개재된 스프링(25)을 탄지시켜서 시일링(23)이 보울트(26)로 체결된 그랜드(27)의 충전물(28)을 누르게 되는 것이었다. 이러한 메카니컬 시일 장치는 패킹박스와 비교할 때 누수와 동력의 손실을 방지할 수 있는 것이다. 보울트(24)를 이용하여 그랜드(26)를 케이싱(28)에 부착시킴에 따라 작업성이 저하되고 보울트(24)를 조이는 정도가 축봉장치의 가압력에 불균형을 초래하여 밀봉효과가 감소되는 요인이 있는 것이며, 특히 회전축이 고속으로 회전하면서 부식성이 높은 유체를 수송할때에는 시일링을자주 교환하게 됨에 따라 보울트를 일일이 풀고 조이는 작업이 매우 번거롭게 되는 것이었다.In the conventional mechanical seal device, as shown in FIG. 1, a spring 25 interposed between a shaft 21 fixed to a rotating shaft 20 and a compression ring 24 connected to a seal ring 23 and a shaft packing 22 is provided. ) To press the filling 28 of the gland 27, the sealing ring 23 is fastened to the bolt (26). Such a mechanical seal device can prevent leakage and loss of power when compared to a packing box. As the gland 26 is attached to the casing 28 using the bolt 24, the workability decreases and the degree of tightening the bolt 24 causes an imbalance in the pressing force of the shaft device, thereby reducing the sealing effect. In particular, when the rotating shaft rotates at a high speed and transports highly corrosive fluids, the sealing rings are frequently changed, which makes the bolts loosen and tighten.

본 고안은 이와같은 문제점을 해결하기 위한 것으로 첨부된 도면에 의하여 상세히 설명하면 다음과 같다.The present invention is to solve this problem described in detail by the accompanying drawings as follows.

제3도는 본 고안의 분해사시도이고, 제4도는 본 고안이 조립된 상태의 단면도이다.Figure 3 is an exploded perspective view of the present invention, Figure 4 is a cross-sectional view of the present invention assembled.

이에 도시한 바와같이 회전축(2)에 고정된 칼라(3)와 시일링(4)에 접속되는 압축링(5)사이에 스프링(6)을 개재하여 시일링(4)이 그랜드(7)의 충전물(8)에 압착되는 메카니컬 시일링 장치(1)를 형성함에 있어서, 그랜드(7)외주연에 수나사(9)를 형성하고 그랜드(7)가 삽입되는 케이싱(10)의 삽입공(11)에는 암나사(12)를 형성 하여서 된 것이다.As shown therein, the seal ring 4 is filled with the gland 7 via the spring 6 between the collar 3 fixed to the rotary shaft 2 and the compression ring 5 connected to the seal ring 4. In forming the mechanical sealing device 1 pressed against (8), the male thread 9 is formed on the outer periphery of the grand 7 and the insertion hole 11 of the casing 10 into which the grand 7 is inserted. It is made by forming a female screw (12).

그랜드(7)의 머리부(13)는 케이싱(10)과의 체결을 쉽게 하기위해 사각 또는 육각 등으로 할수 있다.The head 13 of the gland 7 may be square or hexagonal or the like to facilitate fastening with the casing 10.

이와같이 구성되는 본 고안은 회전축(2)이 관통되며 칼라(3)의 상부로 스프링(6), 압축링(5)및 축패킹(14)이 내설된 시일링(4)을 순차적으로 삽입공(11)에 삽입하고 충전물(8)과 시일링(4)이 적당한 압력으로 압착되도록 그랜드(7)를 케이싱(10)에 쳐결하면 되는 것이다.The present invention configured as described above sequentially inserts the seal ring 4 in which the rotating shaft 2 penetrates and the spring 6, the compression ring 5, and the shaft packing 14 are installed in the upper portion of the collar 3 in sequence. ), And the gland 7 may be joined to the casing 10 so that the filling 8 and the sealing ring 4 are compressed at an appropriate pressure.

이러한 그랜드(7) 의 체결방법은 그랜드(7) 가 케이싱(10)에 정확한 중심을 유지하는 상태로 체결되면서 스프링(6)의 탄발력에 의하여 충전물(8)이 시일링(4)의 상부전면에 고르게 분포되는 압착력을 가지고 밀착되기 때문에 균일한 수밀효과를 발휘하게 되고 또한, 시일링(4)을 교환할때에도 그랜드(7)가 케이싱(10)에 나사로 결합된 상태를 해체하는 한번의 작업만으로 신속하게 작업을 마칠 수 있게되는 효과가 있는 것이다.The fastening method of the grand (7) is the fastener (8) by the elastic force of the spring (6) while the grand (7) is fastened to maintain the correct center on the casing (10) the upper front of the sealing ring (4) Since it adheres with evenly distributed compressive force, it exhibits a uniform watertight effect. Also, when the seal ring 4 is replaced, only one operation of disassembling the state in which the grand 7 is screwed to the casing 10 is performed. The effect is to be able to finish the work.

Claims (1)

회전축(2)에 고정된 칼라(3)와 시일링(4)에 접속되는 압축링(5)사이에 스프링(6)을 개재하여 시일링(4)이 그랜드(7)의 충전물(8)에 압착되는 메카니컬 시일링 장치(1)를 형성함에 있어서, 그랜드(7)의 외주연에 수나사 (9)를 형성하고, 그랜드(7) 가 삽입되는 케이싱(10)의 삽입공(11)에는 암나사(12)를 형성하며 그랜드(7)가 케이싱(10)에 체결되는 것을 특징으로 하는 메카니컬 시일링 장치.The seal ring 4 is pressed against the filling 8 of the gland 7 via a spring 6 between the collar 3 fixed to the rotary shaft 2 and the compression ring 5 connected to the seal ring 4. In forming the mechanical sealing device 1 to be formed, a male screw 9 is formed on the outer circumference of the gland 7, and a female screw 12 is inserted into the insertion hole 11 of the casing 10 into which the gland 7 is inserted. And a grand (7) is fastened to the casing (10).
KR2019910011433U 1991-07-22 1991-07-22 Mechanical sealing KR940000697Y1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR2019910011433U KR940000697Y1 (en) 1991-07-22 1991-07-22 Mechanical sealing

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR2019910011433U KR940000697Y1 (en) 1991-07-22 1991-07-22 Mechanical sealing

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KR930002921U KR930002921U (en) 1993-02-25
KR940000697Y1 true KR940000697Y1 (en) 1994-02-14

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KR2019910011433U KR940000697Y1 (en) 1991-07-22 1991-07-22 Mechanical sealing

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100699005B1 (en) * 2005-10-20 2007-03-23 아륭기공(주) Structure of mechanical seal for coolant pump

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100699005B1 (en) * 2005-10-20 2007-03-23 아륭기공(주) Structure of mechanical seal for coolant pump

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Publication number Publication date
KR930002921U (en) 1993-02-25

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