KR100309447B1 - Ball valve for gas pipe and manufacturing method thereof - Google Patents
Ball valve for gas pipe and manufacturing method thereof Download PDFInfo
- Publication number
- KR100309447B1 KR100309447B1 KR1019980024452A KR19980024452A KR100309447B1 KR 100309447 B1 KR100309447 B1 KR 100309447B1 KR 1019980024452 A KR1019980024452 A KR 1019980024452A KR 19980024452 A KR19980024452 A KR 19980024452A KR 100309447 B1 KR100309447 B1 KR 100309447B1
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- KR
- South Korea
- Prior art keywords
- ball
- end portion
- ball valve
- retainer
- circumferential surface
- Prior art date
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 18
- 238000010438 heat treatment Methods 0.000 claims abstract description 24
- 229920003002 synthetic resin Polymers 0.000 claims abstract 3
- 239000000057 synthetic resin Substances 0.000 claims abstract 3
- 230000002093 peripheral effect Effects 0.000 claims description 5
- 239000000463 material Substances 0.000 claims 2
- 238000003780 insertion Methods 0.000 claims 1
- 230000037431 insertion Effects 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 5
- 238000007789 sealing Methods 0.000 abstract description 3
- 230000007547 defect Effects 0.000 abstract 1
- 230000004927 fusion Effects 0.000 description 6
- 238000007500 overflow downdraw method Methods 0.000 description 3
- 230000033228 biological regulation Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000020169 heat generation Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
Classifications
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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
- F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
- F16K5/06—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having spherical surfaces; Packings therefor
- F16K5/0663—Packings
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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
- F16K25/00—Details relating to contact between valve members and seats
- F16K25/005—Particular materials for seats or closure elements
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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
- F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
- F16K5/06—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having spherical surfaces; Packings therefor
- F16K5/0605—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having spherical surfaces; Packings therefor with particular plug arrangements, e.g. particular shape or built-in means
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Taps Or Cocks (AREA)
- Valve Housings (AREA)
Abstract
Description
본 발명은 가스배관용 볼밸브 및 이의 제조방법에 관한 것으로서, 더욱 상세히 설명하면 볼시트 및 리테이너를 수용하는 엔드부를 볼과 적절한 간격을 유지시킨채로 볼밸브의 몸체 양옆에 결합시킬 수 있는 엔드부의 결합방법에 관한 것이다.The present invention relates to a gas valve ball valve and a method of manufacturing the same, in more detail, the end portion for accommodating the ball seat and the retainer is coupled to the end portion that can be coupled to both sides of the ball valve body while maintaining a proper distance from the ball It is about a method.
일반적으로 볼밸브를 제조하는 방법은 먼저 성형된 몸체에 볼밸브를 삽입시킨 후 양옆에 볼시트 및 리테이너가 수용된 엔드부를 융착결합시켜서 볼밸브의 완성품을 제조하였다.In general, a method of manufacturing a ball valve was manufactured by firstly inserting a ball valve into a molded body and then fusion-combining the end portions in which ball seats and retainers are accommodated on both sides thereof.
이를 도면을 참조하여 설명하면, 도1에 도시된 바와같이, 종래에는 볼(1)이 삽입된 볼밸브 몸체(4)의 단부면과 볼시트 및 리테이너(간략한 설명을 위해 도시하지 않음)가 수용된 엔드부(5) 단부면을 각각 가열한 후 양 단부면을 가압접촉시켜서 결합시키는 즉, 버트융착방법으로 볼밸브를 완성하였다. 그러나 이와같이 단부면과 단부면을 융착시켜 결합시키는 버트융착방식은 가압접촉시켜 결합시키는 도중에 볼과 엔드부의 간격을 조절하여 리테이너의 볼유지력이 균일하도록 제조하는 것이 곤란하였다. 또한 리테이너의 불균일한 볼유지력으로 인해 볼을 적절한 힘으로 지지하여 밀봉시키는 볼시트의 밀봉력이 불량하여 볼밸브의 회전작동이 불량하고, 따라서 가스유동 통로를 개폐하는 기밀구조가 불완전하였다. 미설명부호 2는 가스가 통과하는 볼밸브의 구멍이고, 미설명부호 3은 가스통로를 개폐하는 볼을 회전시키기 위한 어댑터(adapter)이다.Referring to the drawings, as shown in FIG. 1, conventionally, an end face of a ball valve body 4 into which a ball 1 is inserted, and a ball seat and a retainer (not shown for brief description) are accommodated. After heating the end surfaces of the end portions 5, the ball valves were completed by the butt fusion method. However, the butt fusion method in which the end face and the end face are fused and bonded is difficult to manufacture such that the ball holding force of the retainer is uniform by adjusting the distance between the ball and the end portion during the pressure contact. In addition, due to the non-uniform ball holding force of the retainer, the sealing force of the ball seat for supporting and sealing the ball with an appropriate force is poor, so that the rotational operation of the ball valve is poor, and thus the airtight structure for opening and closing the gas flow passage is incomplete. Reference numeral 2 is a hole in the ball valve through which gas passes, and reference numeral 3 is an adapter for rotating the ball to open and close the gas passage.
종래의 또다른 제조방식은 볼밸브의 몸체내로 엔드부를 삽입하여 융착시키는 방식이 사용되었다. 그러나 이와같은 제조방식도 볼밸브의 몸체 내주면과 엔드부의 외주면을 가열한 후 엔드부를 몸체내로 강제로 삽입시켜 융착결합시키는 것으로서 상기 종래 방식인 버트융착방식과 마찬가지로 몸체와 엔드부를 융착결합시키기전에 볼을 지지하는 리테이너의 유지력을 균일하게 조절할 수 없는 문제점이 있었다. 따라서 상기에 언급된 바와같이 이 방식도 또한 밸브내에 삽입된 볼과 이 볼을 지지하는 리테이너의 유지력 조절이 용이하지 않았고 따라서 볼밸브의 기밀구조가 불량하였다.Another conventional manufacturing method is a method of fusion by inserting the end portion into the body of the ball valve. However, such a manufacturing method also heats the inner circumferential surface of the ball valve body and the outer circumferential surface of the end portion and forcibly inserts the end portion into the body for fusion bonding. Like the conventional butt fusion method, the ball is fused before the body and the end portion. There was a problem that the holding force of the supporting retainer could not be uniformly adjusted. Thus, as mentioned above, this method also did not facilitate the adjustment of the holding force of the ball inserted in the valve and the retainer supporting the ball, and thus the airtight structure of the ball valve was poor.
상기와 같은 종래의 제조방식들은 가스유동통로의 개폐를 제어하는 볼밸브의볼과 엔드부의 간격, 즉 볼과 엔드부에 설치된 리테이너사이의 간격을 적절하게 조절한 후에 결합시킬 수 없으므로 볼밸브의 기밀구조를 적절히 조절할 수 없고, 이에따라서 볼밸브 제품의 품질불량, 생산성의 저하, 및 제조비용이 증가되는 문제점이 있었다.Conventional manufacturing methods as described above can not be combined after properly adjusting the distance between the ball and the end of the ball valve for controlling the opening and closing of the gas flow path, that is, the distance between the ball and the retainer installed in the end portion of the ball valve The structure could not be properly adjusted, and thus there was a problem in that a poor quality of the ball valve product, a decrease in productivity, and an increase in manufacturing cost.
또한, 몸체와 엔드부가 결합되는 부분 또는 몸체의 내주면과 엔드부의 외주면을 동시에 열을 가하여 몸체와 엔드부의 결합될 부분을 각각 반용융시키고, 이때 엔드부를 몸체를 향해 가압하여 볼과 리테이너 사이의 간격을 조절함으로써 리테이너의 볼 유지력을 조절하여야 하므로 옌드부를 몸체의 양측에서 동시에 융착결합시키는 것은 매우 곤란하였고, 따라서 볼밸브의 제조시간이 많이 소요되는 문제점도 있었다.In addition, by simultaneously heating the inner peripheral surface and the outer peripheral surface of the end portion of the body and the end portion to which the body and the end portion are joined, the parts to be joined to the body and the end portion are semi-melted, respectively, and the end portion is pressed toward the body to reduce the distance between the ball and the retainer. Since it is necessary to adjust the ball holding force of the retainer by adjusting it, it is very difficult to fusion-bond the yard part at both sides of the body at the same time, and thus there is a problem that the manufacturing time of the ball valve takes a lot.
본 발명은 몸체와 엔드부를 가열시킨다음 엔드부를 결합시킴과 동시에 볼과 엔드부의 간격을 조절하는 종래의 볼밸브 제조방식과 달리 볼과 엔드부 즉, 볼과 볼시트를 지지하는 리테이너 간격을 융착결합시키기 전에 미리 조절하여 리테이너의 볼 유지력을 조절한 상태에서 볼밸브의 몸체와 엔드부를 융착결합시킴으로써 볼과 리테이너를 소정간격을 유지시키도록 제조할 수 있는 개선된 볼밸브의 몸체와 엔드부의 결합방법을 제공하는 것이다.The present invention, unlike the conventional ball valve manufacturing method for heating the body and the end portion and then combines the end portion and adjusts the distance between the ball and the end portion fusion bonding the retainer gap for supporting the ball and the end portion, that is, the ball and the ball seat Improved ball valve body and end joining method that can be manufactured to maintain a predetermined distance by fusion bonding the ball valve body and the end portion while adjusting the ball holding force of the retainer in advance before adjusting To provide.
또한, 상기의 엔드부 결합방법에 의해 제조된 볼밸브를 제공하는 것이다.In addition, it is to provide a ball valve manufactured by the above end portion coupling method.
도1은 종래의 볼밸브의 단면도.1 is a cross-sectional view of a conventional ball valve.
도2는 본 발명의 볼밸브의 일부절개 단면도.Figure 2 is a partial cutaway cross-sectional view of the ball valve of the present invention.
* 도면의 주요부분에 대한 설명* Description of the main parts of the drawings
50 : 볼밸브 51 :볼50: ball valve 51: ball
52 : 발열코일 54 : 몸체52: heating coil 54: body
55 : 엔드부 57 : 리테이너55 end portion 57 retainer
58 : 볼시트 60 : 외주면58: ball seat 60: outer peripheral surface
본 발명의 볼밸브 제조방법은, 볼밸브(50)의 몸체(54)에 외부전원의 공급으로 발열되는 발열코일(56)이 설치된 엔드부(55)를 삽입하여 가조립하고,In the ball valve manufacturing method of the present invention, by inserting the end portion 55 is installed in the body 54 of the ball valve 50, the heat generating coil 56 is generated by the supply of an external power source,
상기 가조립상태에서 볼(51)을 회전시킴으로써 리테이너(57)의 볼(51) 유지력을 검사하고,The ball 51 holding force of the retainer 57 is inspected by rotating the ball 51 in the temporarily assembled state,
몸체(54)에 삽입된 엔드부(55)를 이동시켜 볼(51)과 리테이너(57)의 간격을 조절하여 볼(51) 유지력을 균일하게 유지시키고,By moving the end portion 55 inserted into the body 54 to adjust the distance between the ball 51 and the retainer 57 to maintain the ball 51 holding force uniformly,
리테이너(57)의 볼(51) 유지력을 균일하게 유지한 상태로 발열코일(56)에 전원을 공급하여 볼밸브의 몸체(54) 내주면(52)과 엔드부(55)의 외주면(60)을 융융시킴으로써 몸체(54) 내주면(52)과 엔드부(55) 외주면(60)을 융착결합시킬 수 있는 것이 특징이다.Supplying power to the heating coil 56 while maintaining the retaining force of the ball 51 of the retainer 57 uniformly so that the inner circumferential surface 52 of the body 54 and the outer circumferential surface 60 of the end portion 55 of the ball valve are supplied. By fusion, the inner circumferential surface 52 of the body 54 and the outer circumferential surface 60 of the end portion 55 can be fusion-bonded.
도2에 도시된 바와같이, 상기와 같은 제조방법에 의해 제조된 본 발명의 볼밸브는, 상기 엔드부(55)가 몸체(54)의 내주면(52)에 삽입되고, 외주면(60)에 외부 전원의 공급으로 발열되는 발열코일(56)이 설치되며, 볼시트(58)와 리테이너(57)의 유지력을 균일하게 조절하도록 볼(51)과 리테이너(57)사이의 간격을 조절하기 위해 몸체(54)의 내주면(52)에서 이동가능하고, 조절된 볼시트(58) 유지력을 유지시킨 상태로 발열코일(56)에 외부전원을 인가하는 단자(59)가 형성되며, 발열코일(56)의 발열작용에 의해 몸체(54)의 내주면(52)과 엔드부(55)의 외주면(60)이 동시에 융착되는 것이 특징이다. 미설명부호 53은 가스통로를 개폐하는 볼(51)을 회전시키기 위한 어댑터이다.As shown in FIG. 2, in the ball valve of the present invention manufactured by the manufacturing method as described above, the end portion 55 is inserted into the inner circumferential surface 52 of the body 54, and is external to the outer circumferential surface 60. A heating coil 56 is installed to generate heat by supplying power, and a body (for adjusting the distance between the ball 51 and the retainer 57) to uniformly adjust the holding force of the ball seat 58 and the retainer 57. 54 is movable on the inner circumferential surface 52, a terminal 59 for applying external power to the heating coil 56 while maintaining the adjusted ball seat 58 holding force is formed, and the heating coil 56 The inner circumferential surface 52 of the body 54 and the outer circumferential surface 60 of the end portion 55 are simultaneously fused by heat generation. Reference numeral 53 is an adapter for rotating the ball 51 for opening and closing the gas passage.
엔드부(55)의 발열코일(56) 외경은 볼밸브의 몸체(54) 내주면(52)에 접촉되지 않는 것이 바람직하다.It is preferable that the outer diameter of the heating coil 56 of the end portion 55 does not contact the inner circumferential surface 52 of the body 54 of the ball valve.
도면을 참조하여 본 발명의 볼밸브의 작용을 더욱 상세히 설명하면 다음과 같다.The operation of the ball valve of the present invention with reference to the drawings in more detail as follows.
볼밸브(50)의 엔드부(55) 외주면(60)에는 발열코일(56)이 설치되어서 단자(59)를 통해 외부전원을 공급하면 발열코일(56)에 열이 발생되어 엔드부(55) 외주면(60)과 몸체(54) 내주면(52)을 함께 융착시킨다. 상기와 같이 구성된 엔드부(55)를 볼(51)이 삽입된 몸체(54)의 일측에 가조립시키고, 몸체(54)의 타측에 엔드부(55)를 가조립시킨다. 이와같은 가조립상태에서 어댑터(53)로 볼(51)을 회전시킴으로써 볼(51)에 접촉되는 볼시트(58)의 볼(51) 유지력을 검사하고, 검사규정값과 상이하면 엔드부(55)를 몸체(54)내로 밀어넣거나 빼냄으로써 볼(51)과 리테이너(57) 사이의 간격을 조절하여 리테이너(57)의 볼(51) 유지력을 균일하게 조절한다. 볼시트(58)를 지지하는 엔드부(55)의 리테이너(57)에 의해 볼(51) 유지력이 균일하게 조절된 후 엔드부(55)의 외주면(60)에 돌출 형성된 외부전원 단자(59)를 통해 발열코일(56)에 전원(미도시됨)을 공급하면 발열코일(56)은 가열되어 열이 발생되고 이와같은 발열작용에 의해 엔드부(55)의 외주면(60)과 몸체(54)의 내주면(52)이 동시에 용융되어 함께 융착결합된다.A heating coil 56 is installed on the outer circumferential surface 60 of the end portion 55 of the ball valve 50, and when the external power is supplied through the terminal 59, heat is generated in the heating coil 56 so that the end portion 55 is formed. The outer circumferential surface 60 and the body 54 are fused together. The end portion 55 configured as described above is temporarily assembled on one side of the body 54 into which the ball 51 is inserted, and the end portion 55 is temporarily assembled on the other side of the body 54. The ball 51 holding force of the ball seat 58 in contact with the ball 51 is examined by rotating the ball 51 with the adapter 53 in such a preassembled state, and the end portion 55 is different from the inspection regulation value. By adjusting the distance between the ball 51 and the retainer 57 by pushing or withdrawing into the body 54, the ball 51 holding force of the retainer 57 is uniformly adjusted. The external power terminal 59 protruding from the outer circumferential surface 60 of the end portion 55 after the ball 51 holding force is uniformly adjusted by the retainer 57 of the end portion 55 supporting the ball seat 58. When power (not shown) is supplied to the heating coil 56 through the heating coil 56, the heating coil 56 is heated to generate heat. The outer peripheral surface 60 and the body 54 of the end portion 55 are generated by such a heating action. The inner circumferential surface 52 of is melted and fused together at the same time.
한편, 종래의 볼밸브제조방법과 같이 엔드부(55)를 몸체(54)의 일측에 삽입결합시켜서 융착시킨 후 타측의 엔드부(55)를 결합시켜서 볼(51)과 리테이너(57)의 간격을 조절하여 볼시트(58)의 볼(51) 유지력을 조절할 수도 있다.Meanwhile, as in the conventional ball valve manufacturing method, the end portion 55 is inserted into one side of the body 54 to be fused, and then the end portion 55 of the other side is joined to form a gap between the ball 51 and the retainer 57. It is also possible to adjust the ball 51 holding force of the ball seat 58.
상기에 기술한 바와같은 구조의 볼밸브는 볼밸브의 몸체에 엔드부를 가조립한 상태에서 엔드부의 리테이너와 볼과의 간격을 소정간격으로 유지시킨채 몸체와 엔드부를 동시에 융착결합시킬 수 있게 함으로써 볼밸브의 제조시에 엔드부의 간격조절 및 융착을 용이하게 하여 볼시트를 지지하는 리테이너의 불균일한 볼 유지력을 감소시켜서 볼밸브의 제품신뢰성을 향상시키고, 볼밸브의 생산성을 향상시키는 효과를 갖는다.The ball valve having the structure as described above allows the ball valve to be fused at the same time while maintaining the distance between the retainer and the ball at a predetermined interval while the end is temporarily assembled to the ball valve body. It is easy to adjust the distance and fusion of the end portion during the manufacture of the non-uniform ball holding force of the retainer supporting the ball seat to improve the product reliability of the ball valve, and has the effect of improving the productivity of the ball valve.
Claims (3)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019980024452A KR100309447B1 (en) | 1998-06-23 | 1998-06-23 | Ball valve for gas pipe and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019980024452A KR100309447B1 (en) | 1998-06-23 | 1998-06-23 | Ball valve for gas pipe and manufacturing method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR19980065116A KR19980065116A (en) | 1998-10-07 |
| KR100309447B1 true KR100309447B1 (en) | 2002-07-31 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1019980024452A KR100309447B1 (en) | 1998-06-23 | 1998-06-23 | Ball valve for gas pipe and manufacturing method thereof |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR100309447B1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR102397383B1 (en) * | 2020-10-23 | 2022-05-12 | 주식회사 에스에스피 | Ball valve for landfill gas discharge |
-
1998
- 1998-06-23 KR KR1019980024452A patent/KR100309447B1/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| KR19980065116A (en) | 1998-10-07 |
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