KR900010063Y1 - Check valve - Google Patents

Check valve Download PDF

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Publication number
KR900010063Y1
KR900010063Y1 KR2019880001420U KR880001420U KR900010063Y1 KR 900010063 Y1 KR900010063 Y1 KR 900010063Y1 KR 2019880001420 U KR2019880001420 U KR 2019880001420U KR 880001420 U KR880001420 U KR 880001420U KR 900010063 Y1 KR900010063 Y1 KR 900010063Y1
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KR
South Korea
Prior art keywords
valve
valve plate
main
rod
plate
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Application number
KR2019880001420U
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Korean (ko)
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KR890017809U (en
Inventor
이재동
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이재동
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Priority to KR2019880001420U priority Critical patent/KR900010063Y1/en
Publication of KR890017809U publication Critical patent/KR890017809U/en
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Publication of KR900010063Y1 publication Critical patent/KR900010063Y1/en

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K15/00—Check valves
    • F16K15/02—Check valves with guided rigid valve members
    • F16K15/06—Check valves with guided rigid valve members with guided stems
    • F16K15/063—Check valves with guided rigid valve members with guided stems the valve being loaded by a spring
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K15/00—Check valves
    • F16K15/02—Check valves with guided rigid valve members
    • F16K15/06—Check valves with guided rigid valve members with guided stems
    • F16K15/067—Check valves with guided rigid valve members with guided stems stem guided at two or more points
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K15/00—Check valves
    • F16K15/02—Check valves with guided rigid valve members
    • F16K15/08—Check valves with guided rigid valve members shaped as rings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K15/00—Check valves
    • F16K15/14—Check valves with flexible valve members
    • F16K15/141—Check valves with flexible valve members the closure elements not being fixed to the valve body
    • F16K15/142—Check valves with flexible valve members the closure elements not being fixed to the valve body the closure elements being shaped as solids of revolution, e.g. toroidal or cylindrical rings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K47/00—Means in valves for absorbing fluid energy
    • F16K47/02—Means in valves for absorbing fluid energy for preventing water-hammer or noise
    • F16K47/023—Means in valves for absorbing fluid energy for preventing water-hammer or noise for preventing water-hammer, e.g. damping of the valve movement

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Details Of Valves (AREA)
  • Check Valves (AREA)

Abstract

내용 없음.No content.

Description

체크 밸브Check valve

제1도는 본 고안 실시예의 분해 사시도.1 is an exploded perspective view of an embodiment of the present invention.

제2도는 본 고안 실시예의 동작상태를 보인 단면도.2 is a cross-sectional view showing an operating state of the embodiment of the present invention.

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

1 : 밸브몸체 4, 4a : 시이트면1: Valve body 4, 4a: Sheet surface

6, 6', 6a, 6a' : 밀착링 7 : 주밸브판6, 6 ', 6a, 6a': Adhesive ring 7: Main valve plate

8 : 고정봉 9 : 유통로8: fixed rod 9: distribution channel

10 : 부밸브판 11, 13 : 밸브봉10: sub valve plate 11, 13: valve rod

14 : 안내공 15 : 고정턱14: guide 15: fixed jaw

16 : 안내틀 18, 18' : 코일스프링16: guide frame 18, 18 ': coil spring

19 : 유통공19: distributor

본 고안은 체크밸브에 대한 것으로서, 특히 유체의 흐름 상태를 급변시키는 경우 발생되는 수격작용(water hammering)을 방지할 수 있도록 밸브판을 이중으로 설치하여서 된 체크밸브에 대한 것이다.The present invention relates to a check valve, and in particular, to a check valve provided with a double valve plate to prevent the water hammering (water hammering) generated when the flow of the fluid changes rapidly.

종래의 체크밸브는 유체가 한 방향으로만 흐르도록 함에 있어 단순히 역류를 방지하기 위한 목적으로 사용된 것이었기 때문에 관내를 흐르는 유체의 흐름 상태를 급변 시키게 되면 밸브판도 급격하게 닫히게 되고, 이에 따라 판내에서 압력변화현상, 즉 수격 작용이 발생하게 되므로 소음의 발생은 물론 심한 경우 관이 충격을 받아 파손되는 등의 문제점이 있었다.In the conventional check valve, the fluid flows in only one direction, and is used for the purpose of simply preventing backflow. Therefore, when the flow state of the fluid flowing in the pipe is suddenly changed, the valve plate closes abruptly. The pressure change phenomenon, that is, the water hammer action occurs, so there was a problem such as the occurrence of noise, as well as the tube is damaged by the shock.

본 고안은 이러한 문제점을 해결하기 위해 고안한 것으로서, 주밸브판의 중앙에 유통로를 관통되게 뚫고 이 유통로를 여닫아 주는 주밸브판을 부설함으로써, 유체가 흐르기 시작할 때는 주밸브판과 부밸브판이 동시에 또는 주밸브판이 먼저 열리게 하고, 반대로 유체의 흐름이 정지될 때는 주밸브판이 완전히 닫히기 전까지는 부밸브판이 열려 있도록 하므로 체크밸브의 여닫음 동작시 유통로를 통해 유체공급원측의 유체압력 또는 유체의 일부가 유로방향으로 방출되게 하여서 유체공급원측의 압력이 급변되지 않도록 하였기 때문에 수격작용의 발생이 방지되게 한 것이다.The present invention has been devised to solve this problem, and by installing a main valve plate which penetrates the flow passage in the center of the main valve plate and opens and closes the flow passage, the main valve plate and the sub-valve plate at the same time or when fluid starts to flow The main valve plate is opened first. On the contrary, when the flow of the fluid stops, the sub valve plate is opened until the main valve plate is completely closed. Therefore, when the check valve is opened and closed, the fluid pressure or part of the fluid at the fluid supply side is flowed through the flow path. Since the pressure on the fluid supply side is not changed suddenly, the water hammer is prevented from occurring.

본 고안을 보다 구체적으로 설명하면, 주밸브판과 이 주밸브판의 통공을 여닫아주는, 속이 빈 주밸브봉을 지지 안내하여 주는 지지수단을 갖는 밸브몸체, 상기 주밸브봉내에 상하운동을 하며 상기 주밸브판의 중앙을 관통하게 뚫은 유통로를 여닫아 주는 부밸브판으로 구성되어, 상기 유통로와 유로를 형성하는 유통공이 상기 주밸브봉에 형성한 것이다.The present invention will be described in more detail, a valve body having a main valve plate and a support means for guiding and supporting a hollow main valve rod that opens and closes the through-hole of the main valve plate, vertical movement in the main valve rod, and It is composed of a sub-valve plate for opening and closing the flow passage penetrated through the center, the distribution hole forming the flow passage and the flow path is formed in the main valve rod.

이하, 본 고안을 실시예에 따라 첨부된 도면에 의하여 상세히 설명하면 다음과 같다.Hereinafter, described in detail by the accompanying drawings according to an embodiment of the present invention.

관 형으로 성형하는 밸브몸체(1)이 일끝 외주면에는 걸림턱(2)을 빙둘러 돌출시켜 밸브몸체(1)를 밸브하우징(3)에 결합시킬 때 제2도에서 보는 바와 같이 걸림턱(2)이 밸브하우징(3)의 결합부측 내주면에 빙둘러 형성된 걸이턱에 걸리도록 하므로 밸브몸체(1)의 결합위치가 고정되게 하며, 시이트면(4)의 내주면에는 받침턱(5)을 빙둘러 형성하여 밀착링(6)을 끼워 결착하면 받쳐주도록 하고, 이 밀착링(6)은 주밸브판(7)에 결착하는 밀착링(6')과 서로 밀착되게 하므로 주밸브판(7)이 닫히면 기밀유지가 잘 되도록 하였고, 상기 시이트면(4)에는 적정간격으로 수개의 고정봉(8)을 나사식으로 착설하여 주밸브판(7)이 외주면을 지지하여 주게함과 동시에 동작시 주밸브판의 상하운동을 안내하여 주도록 하였다.When the valve body 1 formed in a tubular shape protrudes the locking jaw 2 roundly at one end outer circumferential surface to couple the valve body 1 to the valve housing 3, as shown in FIG. ) So that the engagement position of the valve body (1) is fixed to the hooking jaw formed around the inner peripheral surface of the coupling part side of the valve housing (3), and the support jaw (5) is rounded around the inner peripheral surface of the seat surface (4). When the main ring plate 7 is closed, the main ring plate 7 is kept tight when the main ring plate 7 is closed. In the seat surface (4), several fixing rods (8) are screwed to the seat surface (4) at appropriate intervals so that the main valve plate (7) supports the outer circumferential surface and at the same time, the up and down movement of the main valve plate during operation. It was guided.

한편, 주밸브판(7)의 중앙에는 유통로(9)를 관통되게 뚫고, 그 시이트면(4a)의 내주면에는 밀착링(6a)을 결착시켜 부밸브판(10)에 결착하는 밀착링(6a')과 서로 밀착이 되게 하며, 외주면에는 나선을 형성한 원통형상의 밸브봉(11)을 나사식으로 착설하고 이 밸브봉(11)의 일끝 막힌면의 중앙에는 안내공(14)을 뚫어 부밸브판(10)에 연설된 밸브봉(13)의 끝부분이 관통되게 끼워지도록 하므로 밸브봉(11)의 내주면은 부밸브판(10)을, 안내공(14)은 밸브봉(13)을 각각 지지하여 줌과 동시에 동작시 안내하여 주도록 하였다.On the other hand, the center ring of the main valve plate (7) is perforated through the flow path (9), the inner ring of the seat surface (4a) to the adhesion ring (6a) by binding to the sub-valve plate (10) by the adhesion ring (6a) ') And close the outer circumferential surface with a screw-shaped cylindrical valve rod (11) formed on the outer circumferential surface, and drills the guide hole (14) in the center of one end of the valve rod 11 to the secondary valve Since the end of the valve rod 13 extended to the plate 10 is inserted through, the inner circumferential surface of the valve rod 11 is the secondary valve plate 10, and the guide hole 14 is the valve rod 13, respectively. It is supported by the zoom and guided during operation.

또한, 각 고정봉(8)의 적정부위에는 고정턱(15)을 형성하여 밸브봉(11)이 동작을 지지 안내하여 주는 원형상의 안내틀(16)을 밸브몸체(1)와 일정간격이 유지되는 상태로 착설되게 하였고, 상기 고정봉(8)의 각 끝부분에는 나선을 형성하여 안내틀(16)을 착설한 다음 너트(17)들을 결착하여 안내틀(16)이 유동되지 않도록 하며, 주밸브판(7)과 부밸브판(10)은 각기 코일스프링(18)(18')으로 탄력설치되게 하여 유체가 흐르지 않을 때에는 이들 코일 스프링(18)(18')의 탄발력에 의해 각기 밸브몸체(1)와, 유통로(9)를 닫아주도록 하므로 유체가 역류되는 것을 막아주게 하였다.In addition, the fixed body 15 is formed at the proper portion of each of the fixing rods (8) to maintain a circular guide frame 16 and the valve body (1) at a predetermined interval to guide the operation of the valve rod (11). The guide rod 16 is formed by forming a spiral at each end of the fixing rod 8, and then the nuts 17 are attached to prevent the guide frame 16 from flowing. The plate 7 and the sub-valve plate 10 are elastically installed with the coil springs 18 and 18 ', respectively, and when the fluid does not flow, the valve body is caused by the repulsive force of these coil springs 18 and 18', respectively. (1) and the flow passage 9 were closed to prevent the fluid from flowing back.

또, 밸브봉(11)의 외주면에는 적정크기의 유통공(19)을 수개 뚫어서 부밸브판(10)의 동작으로 유통로(9)가 열리게 되면, 유통공(19)들과 유통로(9)는 서로 통하게 되도록 하였다.In addition, when the flow passage 9 is opened by the operation of the sub-valve plate 10 by drilling a plurality of flow holes 19 of appropriate size on the outer circumferential surface of the valve rod 11, the flow holes 19 and the flow passage 9 ) To communicate with each other.

미설명 부호 "20"은 패킹링이다.Reference numeral "20" is a packing ring.

이와 같이 구성되는 본 고안은 밸브몸체(1)의 시이트면(4)과 주밸브판(7)의 시이트면(4a)의 내주면 및 이에 접촉하는 주, 부밸브판(7)(10)의 접촉부위에 각기 밀착링(6)(6'),(6a)(6a')들을 결착시킨 것은 기밀유지외에도 장기간 사용할 때 시이트면과 각 밸브판의 접촉부분이 마찰에 의해 마모되는 것을 방지함과 동시에 마모될 경우에는 상기 밀착링들만 교체토록 하므로 밸브의 사용수명을 연장시킬 수 있게 하기 위한 것이다.According to the present invention, the contact surface of the sheet surface 4 of the valve body 1 and the inner circumferential surface of the sheet surface 4a of the main valve plate 7 and the main and sub valve plates 7 and 10 in contact therewith Each of the contact rings 6, 6 ', 6a, 6a' is bonded to each other to prevent wear and tear of the contact surface between the seat surface and each valve plate when used for a long time in addition to airtightness. If it is possible to replace only the contact ring so as to extend the service life of the valve.

제2a도는 유체가 흐르지 않을 때의 본 고안의 동작 상태를 보여주는 것으로서, 이때는 주, 부밸브판(7)(10) 모두 유체의 압력을 받지 않게 되기 때문에 각기 코일 스프링(18)(18')의 탄발력에 의해 밸브몸체(1)와 유통로(9)를 각각 닫아주게 되므로 유체의 역류가 방지된다.Figure 2a shows the operating state of the present invention when the fluid does not flow, in this case, since both the main, secondary valve plate (7) (10) is not subjected to the pressure of the fluid of each of the coil spring (18) (18 ') Since the valve body 1 and the flow path 9 are closed by the elastic force, the back flow of the fluid is prevented.

이후 유체의 공급이 시작되면 밸브몸체(1)에 압력이 증가되고 그 압력이 코일스프링(18)(18')의 탄발력보다 커지면 주, 부밸브판(7)(10)이 동시에 열리게 되어 유체가 밸브를 통과하여 흐를 수 있게 된다.Then, when the supply of fluid starts, the pressure increases in the valve body 1, and when the pressure is greater than the elastic force of the coil springs 18 and 18 ', the main and secondary valve plates 7 and 10 open simultaneously. Can flow through the valve.

한편, 유체의 공급을 중단시키면 밸브몸체(1)내의 압력이 급격하게 약화되므로 스프링(18)(18')의 탄발력에 의해 주, 부밸브판(7)(10)이 급속하게 닫히게 되는데, 이렇게 되면 이들 밸브판에 의해 밸브몸체(1)내부, 즉 유체공급원측의 유체가 압축되는 현상이 발생되지만 이때 내부 압력이 스프링(18)의 탄발력 보다는 약하나 스프링(18')의 탄발력 보다는 강하게 되면 제2b도에서 보는 바와 같이 그 압력이 유통로(9)를 닫아주고 있는 부밸브판(10)을 밀어 유통로(9)를 열어주게 되고, 이에 따라 밸브몸체(1)내의 압력중 일부는 제2c도에서 보는 바와 같이 주밸브판(7)이 완전히 닫힐 때까지 유통로(9)를 통해 밸브하우징(3)의 우측으로 빠져나가게 되므로 주밸브판(7)이 급속하게 닫혀도 밸브몸체(1)내부에서 강한 압축현상이 일어나지 않게 되어 수격작용이 발생하지 않는 것이다.On the other hand, when the supply of the fluid is stopped, the pressure in the valve body 1 is suddenly weakened, so that the main and secondary valve plates 7 and 10 are rapidly closed by the spring force of the springs 18 and 18 '. This causes the phenomenon that the fluid inside the valve body 1, that is, the fluid supply side, is compressed by these valve plates, but the internal pressure is weaker than the spring force of the spring 18, but stronger than the spring force of the spring 18 '. As shown in FIG. 2B, the pressure pushes the sub-valve plate 10 closing the flow path 9 to open the flow path 9, whereby some of the pressure in the valve body 1 As shown in FIG. 2C, the main body of the valve 1 is closed even though the main valve plate 7 is rapidly closed because the main valve plate 7 is exited to the right side of the valve housing 3 through the flow passage 9 until the main valve plate 7 is completely closed. There is no strong compression inside the water hammer It is.

이렇게 되어 주밸브판(7)이 완전히 닫힌 다음 밸브몸체(1)내의 압력이 스프링(18')의 탄발력보다 약하게 되면 부밸브판(10)이 닫히게 되는 것이다.When the main valve plate 7 is thus completely closed and the pressure in the valve body 1 becomes weaker than the spring force of the spring 18 ', the sub valve plate 10 is closed.

이와 같이 작동되는 본 고안은 밸브판의 이중 설치로 유체의 흐름상태가 급변되어 밸브판들이 급속하게 닫히게 됨에 따라 발생되던 수격작용을 제거시켜 주므로 소음 발생은 물론 관이 충격을 받아 파손되던 문제점들을 해소시켜 주는 매우 유용한 고안이다.The present invention operated as described above eliminates the water damage caused by the rapid change of fluid flow due to the double installation of the valve plate, which causes the valve plate to close rapidly. It is a very useful design.

Claims (3)

주밸브판(7); 이 주밸브판의 중앙 유통로(9)상단부에 결합하며 상면중앙에는 안내공(14)이 외주면에는 유통공(19)이 각가 뚫엊니 속이 빈 밸브봉(11); 이 밸브봉을 관통되게 끼워 승강동작을 지지 안내하여 주는 안내틀(16)과 상기 주밸브판(7)을 이탈되지 않게 지지하여 주는 지지수단을 상주면에 고정 착설한 밸브몸체(1); 상기 밸브봉(11)내에서 상하 운동을 하면서 유통로(9)를 여닫아 주고 상면에는 밸브봉(13)이 돌출된 부밸브판(10); 상기 주밸브판(7)과 안내틀(16)사이와 부밸브판(10)과 밸브봉(11)의 내상면 사이에 각각 개재시킨 코일 스프링(18)(18')으로 구성되는 것을 특징으로 하는 체크밸브.Main valve plate 7; A hollow valve rod 11 coupled to an upper end of the central flow path 9 of the main valve plate, and having a guide hole 14 at the center of the upper surface thereof, and a distribution hole 19 at the outer circumferential surface thereof; A valve body (1) fixedly mounted on a circumferential surface of a guide frame (16) for inserting the valve rod through and supporting the lifting operation and supporting means for supporting the main valve plate (7) without being separated; The sub-valve plate 10 which opens and closes the flow path 9 while vertically moving in the valve rod 11 and has a valve rod 13 protruding from the upper surface thereof; And coil springs (18, 18 ') interposed between the main valve plate (7) and the guide frame (16) and between the sub valve plate (10) and the inner upper surface of the valve rod (11). Check valve. 제1항에 있어서, 지지수단은 밸브봉(11)의 외주와 걸맞는 안내공을 가진 안내틀(16)을 밸브몸체(1)상부에 결합하면 적정 위치에서 고정되게 하여 주는 고정턱이 형성된 2개 이상의 고정봉(8)으로 구성함을 특징으로 하는 체크밸브.2. The support means according to claim 1, wherein the support means is provided with a fixing jaw that secures the guide frame 16 having a guide hole fitting with the outer circumference of the valve rod 11 to the upper portion of the valve body 1 so as to be fixed at an appropriate position. Check valve, characterized in that composed of more than one fixed rod (8). 제1항에 있어서, 밸브몸체(1)의 시이트면(4)내주면과 이에 접촉되는 주밸브판(7)의 접촉면, 유통로(9)의 시이트면(4a)내주면과 이에 접촉하는 부밸브판(10)의 접촉면에 각기 밀착링(6)(6'),(6a)(6a')을 결착시키는 것을 특징으로 하는 체크밸브.The inner peripheral surface of the sheet surface 4 of the valve body 1 and the contact surface of the main valve plate 7 in contact therewith, and the inner valve surface of the sheet surface 4a of the flow passage 9 and the secondary valve plate in contact therewith. A check valve, characterized in that each of the close contact ring (6) (6 '), (6a) (6a') to the contact surface of the 10.
KR2019880001420U 1988-02-08 1988-02-08 Check valve KR900010063Y1 (en)

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KR900010063Y1 true KR900010063Y1 (en) 1990-10-31

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