WO2025011366A1 - 阀门启闭件及直通型截止阀 - Google Patents

阀门启闭件及直通型截止阀 Download PDF

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Publication number
WO2025011366A1
WO2025011366A1 PCT/CN2024/102525 CN2024102525W WO2025011366A1 WO 2025011366 A1 WO2025011366 A1 WO 2025011366A1 CN 2024102525 W CN2024102525 W CN 2024102525W WO 2025011366 A1 WO2025011366 A1 WO 2025011366A1
Authority
WO
WIPO (PCT)
Prior art keywords
valve
stop
sealing gasket
chamber
straight
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
PCT/CN2024/102525
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English (en)
French (fr)
Inventor
张天惕
唐海静
马淑芳
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Oushangyuan Process & Equipment Intelligent Co
Original Assignee
Oushangyuan Process & Equipment Intelligent Co
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.)
Filing date
Publication date
Application filed by Oushangyuan Process & Equipment Intelligent Co filed Critical Oushangyuan Process & Equipment Intelligent Co
Priority to EP24838621.1A priority Critical patent/EP4589180A1/en
Priority to KR1020257011221A priority patent/KR20250065385A/ko
Priority to JP2025521541A priority patent/JP2025534176A/ja
Publication of WO2025011366A1 publication Critical patent/WO2025011366A1/zh
Pending legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • 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
    • F16K41/00—Spindle sealings
    • F16K41/02—Spindle sealings with stuffing-box ; Sealing 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
    • F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
    • F16K1/32—Details
    • 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
    • F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
    • F16K1/32—Details
    • F16K1/34—Cutting-off parts, e.g. valve members, seats
    • F16K1/36—Valve members
    • 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
    • F16K27/00—Construction of housing; Use of materials therefor
    • F16K27/02—Construction of housing; Use of materials therefor of lift valves

Definitions

  • the present application relates to the technical field of straight-through stop valves, for example, to a valve opening and closing component and a straight-through stop valve.
  • the straight-through stop valve relies on the valve stem pressure to tightly combine the valve disc sealing surface with the valve seat sealing surface to prevent the flow of medium. It has the characteristics of small friction between the sealing surfaces during opening and closing, wear resistance, small opening height, and good manufacturing process performance.
  • the straight-through stop valve is the most widely used valve in the industrial sector. It is suitable for use in sanitary and aseptic processes. This straight-through stop valve is also needed in the production process of antibiotics.
  • the straight-through stop valve When the straight-through stop valve is used in the production process of antibiotics, it is used in a sanitary and aseptic process, and the process requirements require that it be suitable for Cleaning In Place (CIP) and Sanitizing In Place (SIP).
  • CIP Cleaning In Place
  • SIP Sanitizing In Place
  • the inner cavity of the valve body needs to maintain the characteristics of low roughness, low dead angle and no liquid accumulation.
  • the valve disc In the straight-through stop valve in the related art, the valve disc is connected to the metal parts by threading or riveting to fix the valve core sealing gasket.
  • the gaps between the thread pairs or the radial gaps after riveting are dead angles.
  • the medium passing through the stop valve cannot flow out after flowing into these gaps, resulting in liquid accumulation inside the valve body and difficulty in cleaning, thereby affecting the sanitary and aseptic process environment during the production of antibiotics.
  • the present application provides a valve opening and closing member and a straight-through stop valve, which can solve the problem in the related art that the valve flap of the straight-through stop valve has a dead angle when connecting the metal parts to fix the valve core sealing gasket, resulting in the inability of the medium to flow out after flowing in.
  • An embodiment of the present application provides a valve opening and closing member, including a valve flap, one side of which is provided with a valve core sealing gasket, and a valve core sealing gasket fixing ring configured to fix the valve core sealing gasket to the valve flap;
  • the valve flap includes a valve flap body, an external threaded column is concentrically arranged below the valve flap body, an internal threaded hole is arranged on the valve core sealing gasket fixing ring and is threadedly connected to the external threaded column, and a sealing structure is arranged on the side of the external threaded column away from the valve flap body, and the sealing structure limits the medium from entering the gap between the external threaded column and the internal threaded hole.
  • the sealing structure comprises a cylinder, a cylindrical hole is below the internal threaded hole, and the cylinder is connected to the cylindrical hole by interference fit.
  • the cylinder and the external threaded column are integrally formed.
  • the internal threaded hole is configured as a blind hole to seal one end of the internal threaded hole.
  • An embodiment of the present application also provides a straight-through stop valve, including a valve body, wherein two chambers connected to the outside are arranged in the valve body, branches are respectively arranged in the two chambers, a stop chamber is arranged at the connecting point of the two chambers, a valve port is arranged at the connecting point between the stop chamber and one of the chambers, a valve shaft extending to the outside of the valve body is slidably connected through the stop chamber, and one end of the valve shaft located inside the valve body is fixedly connected to the valve disc body.
  • annular inclined flow channel is provided on the peripheral side of the valve port, and the annular inclined flow channel is connected to the cut-off cavity.
  • the valve flap body closes or opens the valve port, one of the chambers is always connected to the cut-off cavity and to the annular inclined flow channel.
  • Branches for the medium to flow out of the chamber and into the chamber are respectively provided in the two chambers, and the inner bottom of the annular inclined flow channel is inclined to one side from high to low.
  • connection points between the two chambers and the outside of the valve body are respectively connected to external pipelines by welding.
  • connection between the two chambers and the outside of the valve body is connected to an external pipeline via a sanitary flange, and the sanitary flange seals the connection between the valve body and the external pipeline through a concave and convex surface and an O-ring.
  • the valve body is provided with an opening connected to the cut-off cavity, the opening is sealed with a valve cover via a sealing gasket, the valve cover is provided with a valve neck connected to the inside of the cut-off cavity, and the valve shaft is slidably and sealably connected to the valve neck.
  • valve shaft and the valve neck are sealed by a combined packing.
  • FIG1 is a schematic diagram of a side cross-sectional structure of a sealing structure provided by an embodiment of the present application.
  • FIG2 is a schematic side cross-sectional view of a straight-through stop valve according to an embodiment of the present application.
  • FIG3 is a side cross-sectional structural schematic diagram of a second sealing structure provided in an embodiment of the present application.
  • FIG4 is a schematic diagram of a side cross-sectional structure of a valve core sealing gasket fixing ring when the valve core sealing gasket fixing ring is not installed according to an embodiment of the present application;
  • FIG5 is a schematic diagram of a top view of an annular inclined flow channel according to an embodiment of the present application.
  • FIG6 is a schematic diagram of a side cross-sectional three-dimensional structure of a straight-through stop valve provided in one embodiment of the present application.
  • FIG7 is a schematic diagram of a three-dimensional structure of a straight-through stop valve according to an embodiment of the present application.
  • FIG8 is a schematic diagram of a medium flow state when a straight-through stop valve is opened according to an embodiment of the present application.
  • valve body 2. valve neck; 3. valve cover; 4. valve shaft; 5. valve core gasket; 6. valve core gasket fixing ring; 7. valve disc; 8. chamber; 9. stop chamber; 10. annular inclined flow channel; 11. branch;
  • valve disc body 701, valve disc body; 702, external thread column; 703, cylinder; 704, internal thread hole; 705, cylindrical hole.
  • Embodiment 1 is a diagrammatic representation of Embodiment 1:
  • an embodiment of the present application provides a valve opening and closing component, including a valve flap 7, on one side of which a valve core sealing gasket 5 and a valve core sealing gasket fixing ring 6 configured to fix the valve core sealing gasket 5 to the valve flap 7 are sequentially arranged.
  • the valve flap 7 includes a valve flap body 701, an external threaded column 702 is concentrically arranged below the valve flap body 701, an internal threaded hole 704 threadedly connected to the external threaded column 702 is arranged on the valve core sealing gasket fixing ring 6, and a sealing structure is arranged on the side of the external threaded column 702 away from the valve flap body 701, and the sealing structure limits the medium from entering the gap between the external threaded column 702 and the internal threaded hole 704.
  • a stop valve for example, a straight-through stop valve
  • the valve is opened or closed by the linear motion of the valve disc 7 inside the stop valve.
  • the straight-through stop valve is one of the important components, and in practical applications, according to the requirements of the antibiotic production process, the interior of the valve needs to have low roughness, low dead angle and no liquid accumulation.
  • the present application uses a threaded connection between the external threaded column 702 and the internal threaded hole 704 to fix the valve core sealing gasket fixing ring 6 to the valve flap body 701, thereby clamping the valve core sealing gasket 5 between the valve flap body 701 and the valve core sealing gasket fixing ring 6 and fixing it, and closing the end of the internal threaded hole 704 through a sealing structure, thereby preventing the medium flowing in the valve from entering the gap between the internal threaded hole 704 and the external threaded column 702.
  • the sealing structure is configured to limit the flow of the medium into the gap at the connection between the internal threaded hole 704 and the external threaded column 702, thereby avoiding the accumulation of liquid in the external threaded column 702 and the internal threaded hole 704, reducing the difficulty of sterilizing and cleaning the inside of the valve, and ensuring a hygienic and aseptic process environment during the production process.
  • the present invention connects and fixes the valve core sealing gasket fixing ring 6 through the external thread column 702 and the internal thread hole 704, so that the valve core sealing gasket 5 and the valve disc 7 are against each other to play a sealing and fixing role; at the same time, the present invention limits the medium from flowing into the gap between the external thread column 702 and the internal thread hole 704 through the sealing structure, thereby avoiding the valve body 1
  • the internal effusion is generated to ensure a hygienic and aseptic process during production.
  • valve core sealing gasket 5 and the valve core sealing gasket fixing ring 6 abut against each other to form a seal, the medium flowing in the valve is restricted from flowing from the side of the internal threaded hole 704 close to the valve core sealing gasket 5 into the gap between the external threaded column 702 and the internal threaded hole 704, thereby avoiding the accumulation of liquid in the metal parts fixing the valve core sealing gasket 5 in the valve, thereby ensuring the sanitary and aseptic process environment inside the valve during the production of antibiotics.
  • valve core sealing gasket 5 is configured to seal the channel for medium circulation in the valve under the drive of the valve flap body 701, and the valve core sealing gasket fixing ring 6 is fixed to the valve flap body 701, and the valve core sealing gasket 5 is clamped and fixed on both sides of the valve core sealing gasket 5 by the valve core sealing gasket fixing ring 6 and the valve flap body 701.
  • This embodiment can also be applied to other mechanical components with valve flaps 7, so that these mechanical components can achieve obstruction and sealing of the circulating medium, thereby preventing the corresponding area from being eroded by the medium and the influence of medium accumulation on the aseptic process.
  • the sealing structure includes a cylinder 703.
  • the valve core sealing gasket fixing ring 6 is also provided with a cylindrical hole 705.
  • the cylindrical hole 705 is located below the internal threaded hole 704.
  • the cylinder 703 and the cylindrical hole 705 are connected by interference fit to prevent the connection between the valve core sealing gasket fixing ring 6 and the valve disc 7 from loosening.
  • the cylinder 703 and the cylindrical hole 705 are connected by interference fit, which has a limiting effect on the movement of the valve core sealing gasket fixing ring 6, thereby preventing the external threaded column 702 and the internal threaded hole 704 from loosening.
  • the main technical feature lies in the sequential arrangement of the external threaded column 702 and the cylinder 703.
  • the interference fit connection between the cylinder 703 and the cylindrical hole 705 realizes the mechanical sealing of the cylindrical hole 705, and the sealing of the other side of the internal threaded hole 704 is realized by the friction between the valve core sealing gasket 5 and the valve core sealing gasket fixing ring 6, thereby limiting the medium passing through the valve from flowing into the gap between the external threaded column 702 and the internal threaded hole 704, avoiding the generation of liquid accumulation in the external threaded column 702 and the internal threaded hole 704, reducing the difficulty of sterilizing and cleaning the inside of the valve, and ensuring the hygiene and aseptic process environment during the production process.
  • the external threaded column 702 and the cylinder 703 can be integrally formed, or they can be separately formed and then concentrically connected together by welding or other means. It is only necessary to ensure that the external threaded column 702 and the internal threaded hole 704 can be threadedly engaged, and that the cylinder 703 and the cylindrical hole 705 can be interference fit and connected to achieve a mechanical sealing effect.
  • the external threaded column 702 can also be integrally formed with the valve flap body 701, or they can be concentrically connected together by welding or other means.
  • the sealing structure may also be an annular sealing ring arranged at the end of the external threaded column 702 and a cylindrical hole 705 arranged in the same manner.
  • an annular sealing ring at the end of the external threaded column 702 to make sliding contact with the inner wall of the cylindrical hole 705
  • a sealing effect is produced to prevent the medium from flowing into the gap between the internal threaded hole 704 and the external threaded column 702.
  • this technical means lacks the effect of preventing the connection between the external threaded column 702 and the internal threaded hole 704 from loosening.
  • the above two technical means of this embodiment have better effects.
  • the cylinder 703 and the external threaded column 702 are integrally formed, which makes the overall production process more convenient and the overall structure more stable.
  • the internal threaded hole 704 is set as a blind hole to achieve sealing of one end of the internal threaded hole 704, and also limit the medium flowing inside the valve body 1 from entering the gap between the external threaded column 702 and the internal threaded hole 704, avoiding the accumulation of liquid inside the valve body 1 and ensuring the hygiene and aseptic process during the production process.
  • the internal threaded hole 704 When the internal threaded hole 704 is set as a blind hole, the end of the internal threaded hole 704 facing the valve flap body 701 is in a connected state, and the end of the internal threaded hole 704 away from the valve flap body 701 is in a closed state, so that the medium flowing inside the valve cannot enter the internal threaded hole 704 from the end of the internal threaded hole 704 away from the valve flap body 701, thereby forming a sealing effect on one end of the internal threaded hole 704, thereby avoiding the problem of liquid accumulation in the gap at the connection between the internal threaded hole 704 and the external threaded column 702.
  • the length of the external threaded column 702 should be less than the depth of the internal threaded hole 704, ensuring that the valve core sealing gasket fixing ring 6 and the valve flap body 701 and the valve core sealing gasket 5 are respectively abutted.
  • Embodiment 2 is a diagrammatic representation of Embodiment 1:
  • an embodiment of the present application also provides a straight-through stop valve, including a valve body 1, in which two chambers 8 connected to the outside are arranged, and branches 11 are respectively arranged in the two chambers 8, and a stop chamber 9 is arranged at the connecting point of the two chambers 8, and a valve port is arranged at the connecting point between the stop chamber 9 and one of the chambers 8, and a valve shaft 4 extending to the outside of the valve body 1 is slidably connected through the stop chamber 9, and the end of the valve shaft 4 located inside the valve body 1 is fixedly connected to the valve disc body 701.
  • connection between the two chambers 8 and the outside of the valve body 1 is connected to an external pipeline, and the valve shaft 4 is connected to an actuator, which includes an electric type, a pneumatic type or a manual type.
  • the actuator drives the valve shaft 4 to move upward, and the valve disc 7, the valve core sealing gasket 5 and the valve core sealing gasket fixing ring 6 synchronously follow the movement of the valve shaft 4, and the valve core sealing gasket 5 disengages from the valve port where the shut-off chamber 9 and the chamber 8 are connected, so that the shut-off chamber 9 is connected to the two chambers 8 at the same time.
  • the inside of the valve body 1 is in a state where the medium can flow.
  • the valve body 1 is provided with a plurality of valve elements, and the plurality of valve elements are provided with a plurality of valve elements.
  • the plurality of valve elements are provided with a plurality of valve elements, and the plurality of valve elements are provided with a plurality of valve elements.
  • the plurality of valve elements are provided with a plurality of valve elements, and the plurality of valve elements are provided with a plurality of valve elements.
  • valve shaft 4 drives the valve disc 7 and the valve core sealing gasket 5 to move up and down, so that the valve core sealing gasket 5 is away from or pressed against the connection between the chamber 8 and the cut-off chamber 9, thereby realizing the opening or closing of the inside of the valve body 1.
  • valve flap 7 is applied in this embodiment, so that when this embodiment is actually used, the existence of dead angles inside the straight-through stop valve is reduced, the existence of liquid accumulation at the valve flap 7 inside the straight-through stop valve is avoided, and the difficulty of sterilizing and cleaning the straight-through stop valve is reduced.
  • straight-through stop valves are also used in industries such as food, medicine, and chemicals
  • the straight-through stop valve provided in this application can also be used in these industries, and the use of the straight-through stop valve needs to comply with specific usage requirements.
  • annular inclined flow channel 10 is arranged on the peripheral side of the valve port, and the annular inclined flow channel 10 is connected with the cut-off chamber 9.
  • the valve disc body 701 closes or opens the valve port, one of the chambers 8 is always connected with the cut-off chamber 9 and the annular inclined flow channel 10.
  • Branches 11 for the medium to flow out of the chamber 8 and into the chamber 8 are respectively arranged in the two chambers 8, and the inner bottom of the annular inclined flow channel 10 is inclined to one side from high to low.
  • the straight-through stop valve in the related art is also provided with an annular flow channel inside, which is also arranged around the valve port, but the inner bottom of the annular flow channel in the related art is arranged horizontally, that is, after the valve body 1 is installed, the valve shaft 4 is in a vertical state, and the inner bottom of the annular flow channel in the related art is a horizontal plane.
  • the cut-off chamber 9 is always connected to the chamber 8 on the right side of the figure, the chamber 8 on the left side of the figure is not connected to the cut-off chamber 9 when the valve port is closed by the valve disc 7, and the annular inclined flow channel 10 is always connected to the chamber 8 on the right side of the figure.
  • the straight-through stop valve in the present application is in the state where the valve port is closed and opened respectively.
  • the medium fills the interior of the valve body 1 and flows through the two chambers 8 and the stop chamber 9 through the valve body 1. At this time, the medium will also fill the annular inclined flow channel 10 located around the valve port.
  • the medium falling into the annular inclined flow channel 10 flows along the inner bottom of the annular inclined flow channel 10 under the action of its own gravity, and enters the left chamber 8 through the connection between the annular inclined flow channel 10 and the chamber 8 on the left, and then is discharged through the branch 11 in the chamber 8 on the left, thereby avoiding the presence of liquid accumulation in the annular inclined flow channel 10, further reducing the possibility of liquid accumulation in the valve body 1, and ensuring the sanitary and aseptic process environment inside the valve body 1 during the production of antibiotics, and the condensed water in the chamber 8 can also be It flows out of the chamber 8 through the branch 11 .
  • the medium required for disinfection and sterilization such as water vapor, can enter the chamber 8 through the position where the chamber 8 is connected to the outside, and can also enter the chamber 8 through the branch 11.
  • connection points between the two chambers 8 and the outside of the valve body 1 are connected to the external pipeline by welding.
  • connection between the outside of the valve body 1 and the chamber 8 of the straight-through stop valve in the related art is generally connected by an ordinary flange and sealed by a flat sealing gasket. Since the flat sealing gasket cannot be accurately positioned and the sealing surface of the ordinary flange is relatively rough, liquid will accumulate between the flanges after the connection.
  • the present application connects to the external pipeline by welding to eliminate the dead angle and sealing problems of the docking and avoid the existence of liquid accumulation.
  • connection between the two chambers 8 and the outside of the valve body 1 is also connected to the external pipeline through a sanitary flange, and the sanitary flange seals the connection between the valve body 1 and the external pipeline through the concave and convex surface and the O-ring.
  • connection between the outside of the valve body 1 and the chamber 8 of the straight-through stop valve in the related art is generally connected by an ordinary flange and sealed by a flat sealing gasket. Since the flat sealing gasket cannot be accurately positioned and the sealing surface of the ordinary flange is relatively rough, liquid will accumulate between the flanges after the connection. By adopting a sanitary flange connection and cooperating with an O-ring seal, the dead angles generated after the connection and the dead angles between the sealing gaskets can be greatly reduced.
  • the valve body 1 is provided with an opening communicating with the cut-off chamber 9 , the opening is sealed with a valve cover 3 via a sealing gasket, the valve cover 3 is provided with a valve neck 2 communicating with the inside of the cut-off chamber 9 , and a valve shaft 4 is slidingly and sealingly connected in the valve neck 2 .
  • valve body 1 The opening on the valve body 1 is sealed by the valve cover 3 and the sealing gasket, so as to facilitate the movement of the valve shaft 4 and prevent the outflow of the medium, thereby ensuring good sealing inside the valve body 1.
  • valve shaft 4 and the valve neck 2 are sealed by a combined packing, which ensures good sealing of the valve shaft 4 during the up and down movement, and prevents the medium from flowing out of the valve body 1 through the gap between the valve shaft 4 and the valve neck 2.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Lift Valve (AREA)

Abstract

一种阀门启闭件及直通型截止阀，阀门启闭件包括阀瓣（7），阀瓣（7）的一侧依次设置有阀芯密封垫（5），及设置为将阀芯密封垫（5）固定至阀瓣（7）上的阀芯密封垫固定圈（6），阀瓣（7）包括阀瓣本体（701），阀瓣本体（701）下方同心设置有外螺纹柱（702），阀芯密封垫固定圈（6）上设置有与外螺纹柱（702）螺纹连接的内螺纹孔（704），外螺纹柱（702）背离阀瓣本体（701）的一侧设置有密封结构，密封结构限制介质进入外螺纹柱（702）和内螺纹孔（704）的间隙中。

Description

阀门启闭件及直通型截止阀
本申请要求在2023年07月13日提交中国专利局、申请号为202310857048.3的中国专利申请的优先权，该申请的全部内容通过引用结合在本申请中。
技术领域
本申请涉及直通型截止阀技术领域，例如涉及一种阀门启闭件及直通型截止阀。
背景技术
直通型截止阀依靠阀杆压力，使阀瓣密封面与阀座密封面紧密结合，阻止介质流通，具有在启闭过程中密封面之间摩擦力小，耐磨，开启高度小，制造工艺性能好等特点，直通型截止阀是工业部门中使用最广泛的一种阀门，适合在卫生和无菌工艺中使用，在抗生素生产的过程中也需要用到这种直通型截止阀。
直通型截止阀应用在抗生素的生产过程中时，由于是在卫生和无菌工艺中使用，在工艺要求上需要能适合就地清洗(Cleaning In Place，CIP)和就地消毒(Sanitizing In Place，SIP)的清洗方式，阀体内腔需要保持具有低粗糙度、低死角和无积液的特性，而相关技术中的直通型截止阀中，阀瓣通过螺纹连接或者铆接的方式连接金属零件以固定阀芯密封垫，但通过此种方式连接金属零件时，螺纹副之间的间隙或者铆接之后的径向间隙都是死角，截止阀内通过的介质在流入这些间隙之后无法再流出来，导致阀体内部积液并难以清理，从而影响抗生素生产过程中的卫生和无菌工艺的环境。
发明内容
本申请提供了一种阀门启闭件及直通型截止阀，能够解决相关技术中的直通型截止阀的阀瓣在连接金属零件固定阀芯密封垫时存在死角而导致介质流入后无法流出的问题。
本申请一实施例提供了一种阀门启闭件，包括阀瓣，所述阀瓣的一侧依次设置有阀芯密封垫，及设置为将阀芯密封垫固定至阀瓣上的阀芯密封垫固定圈；
所述阀瓣包括阀瓣本体，所述阀瓣本体下方同心设置有外螺纹柱，所述阀芯密封垫固定圈上设置有与外螺纹柱螺纹连接的内螺纹孔，所述外螺纹柱背离阀瓣本体的一侧设置有密封结构，所述密封结构限制介质进入外螺纹柱和内螺纹孔的间隙中。
在一实施例中，所述密封结构包括圆柱，所述内螺纹孔下方为圆柱孔，所述圆柱与所述圆柱孔过盈配合连接。
在一实施例中，所述圆柱和外螺纹柱一体成型。
在一实施例中，所述内螺纹孔设置为盲孔以对内螺纹孔一端密封。
本申请一实施例还提供了一种直通型截止阀，包括阀体，所述阀体内设置有两个与外部连通的腔室，两个所述腔室内分别设置有支路，两个所述腔室的连通处设置有截止腔，所述截止腔和其中一个腔室的连通处设置有阀口，所述截止腔内贯穿滑动连接有延伸至阀体外部的阀轴，且所述阀轴位于阀体内部的一端与阀瓣本体固定连接。
在一实施例中，所述阀口的周侧设置有环形倾斜流道，且所述环形倾斜流道与截止腔连通，在所述阀瓣本体封闭或者打开阀口时，其中一个所述腔室与截止腔始终保持连通并与环形倾斜流道连通，两个所述腔室内分别设置有供介质流出腔室和进入腔室的支路，且所述环形倾斜流道的内底部由高到低向一侧倾斜。
在一实施例中，两个所述腔室与阀体外部的连通处分别通过焊接的方式与外部管道连接。
在一实施例中，两个所述腔室与所述阀体外部的连通处通过卫生法兰与外部管道连接，且所述卫生法兰通过凹凸面与O型密封圈配合密封所述阀体与所述外部管道的连接处。
在一实施例中，所述阀体上设置有与截止腔连通的开口，所述开口处通过密封垫密封连接有阀盖，所述阀盖上设置有与截止腔内部连通的阀颈，所述阀轴滑动密封连接于所述阀颈内。
在一实施例中，所述阀轴和所述阀颈之间通过组合填料密封。
附图说明
图1为本申请一实施例提供的一种密封结构侧面剖视结构示意图；
图2为本申请一实施例提供一种直通型截止阀的侧面剖视结构示意图；
图3为本申请一实施例提供第二种密封结构的侧面剖视结构示意图；
图4为本申请一实施例提供阀芯密封垫固定圈未安装时的侧面剖视结构示意图；
图5为本申请一实施例提供环形倾斜流道的俯视结构示意图；
图6为本申请一实施例提供一种直通型截止阀的侧面剖视立体结构示意图；
图7为本申请一实施例提供一种直通型截止阀的立体结构示意图；
图8为本申请一实施例提供一种直通型截止阀打开时的介质流通状态示意图。
图中的标号分别表示如下：1、阀体；2、阀颈；3、阀盖；4、阀轴；5、阀芯密封垫；6、阀芯密封垫固定圈；7、阀瓣；8、腔室；9、截止腔；10、环形倾斜流道；11、支路；
701、阀瓣本体；702、外螺纹柱；703、圆柱；704、内螺纹孔；705、圆柱孔。
具体实施方式
实施例1：
如图1、图3和图4所示，本申请一实施例提供了一种阀门启闭件，包括阀瓣7，阀瓣7的一侧依次设置有阀芯密封垫5和设置为将阀芯密封垫5固定至阀瓣7上的阀芯密封垫固定圈6。
阀瓣7包括阀瓣本体701，阀瓣本体701下方同心设置有外螺纹柱702，阀芯密封垫固定圈6上设置有与外螺纹柱702螺纹连接的内螺纹孔704，在外螺纹柱702背离阀瓣本体701的一侧设置有密封结构，通过密封结构限制介质进入外螺纹柱702和内螺纹孔704的间隙中。
在本实施例中，具体应用于截止阀中，例如是直通型截止阀中，通过阀瓣7在截止阀内部的直线运动打开或者关闭阀门。
在抗生素的生产工艺流程中，直通型截止阀是其中一个重要的部件，且在实际应用中，根据抗生素生产工艺的要求，阀门的内部需要低粗糙度、低死角和无积液，本申请通过外螺纹柱702和内螺纹孔704螺纹连接以将阀芯密封垫固定圈6固定至阀瓣本体701上，从而将阀芯密封垫5夹持在阀瓣本体701和阀芯密封垫固定圈6之间并进行固定，并通过密封结构封闭内螺纹孔704的端部，从而阻止阀门中流通的介质进入内螺纹孔704和外螺纹柱702之间的间隙中。
密封结构设置为限制介质流入内螺纹孔704和外螺纹柱702连接处的间隙内部，避免了外螺纹柱702和内螺纹孔704内积液的产生，减小了对阀门内部杀菌清洁的难度，保证了生产过程中的卫生和无菌工艺的环境。
本申请通过外螺纹柱702与内螺纹孔704连接固定阀芯密封垫固定圈6，从而使阀芯密封垫5与阀瓣7相抵，起到密封固定的作用；同时，本申请通过密封结构限制介质流入外螺纹柱702和内螺纹孔704之间的间隙中，避免了阀体1 内部产生积液，保证了生产过程中的卫生和无菌工艺。
且又由于阀芯密封垫5和阀芯密封垫固定圈6相抵形成密封，从而也限制了阀门中流通的介质从内螺纹孔704上靠近阀芯密封垫5的一侧流入外螺纹柱702和内螺纹孔704之间的间隙中，避免了阀门中固定阀芯密封垫5的金属零件存在积液，保证了阀门内部在抗生素生产过程中的卫生和无菌工艺环境。
在本实施例中，阀芯密封垫5设置为在阀瓣本体701的带动下密封阀门中供介质流通的通道，并通过将阀芯密封垫固定圈6固定在阀瓣本体701上，通过阀芯密封垫固定圈6和阀瓣本体701在阀芯密封垫5两侧进行夹持并固定阀芯密封垫5。
本实施例中还可以应用在其它具有阀瓣7的机械部件中，使得这些机械部件实现对流通介质的阻碍和密封，从而避免相应区域内部受到介质的侵蚀以及介质积液对无菌工艺的影响。
密封结构包括圆柱703，阀芯密封垫固定圈6还设有圆柱孔705，圆柱孔705位于内螺纹孔704下方，圆柱703与圆柱孔705过盈配合连接，防止了阀芯密封垫固定圈6与阀瓣7的连接发生松动。
由于圆柱703和圆柱孔705的表面是光滑的，所以通过圆柱703和圆柱孔705之间过盈配合连接实现机械密封效果，从而阻止阀门中流通的介质进入外螺纹柱702和内螺纹孔704之间的间隙中，避免了阀门中的介质流入外螺纹柱702和内螺纹孔704之间的间隙产生积液，减小了对于阀门内部杀菌清洁的难度，保证了生产过程中的卫生和无菌工艺的环境。
且圆柱703和圆柱孔705之间为过盈配合连接，对阀芯密封垫固定圈6的运动具有限制作用，从而起到防止外螺纹柱702和内螺纹孔704之间松动的效果。
即在本实施例中，主要技术特征在于外螺纹柱702和圆柱703的顺序设置，圆柱703和圆柱孔705之间的过盈配合连接实现对圆柱孔705的机械密封，并通过阀芯密封垫5和阀芯密封垫固定圈6之间的相抵实现对内螺纹孔704另一侧的密封，从而限制经过阀门的介质流入外螺纹柱702和内螺纹孔704之间的间隙中，避免了外螺纹柱702和内螺纹孔704内积液的产生，减小了对阀门内部杀菌清洁的难度，保证了生产过程中的卫生和无菌工艺的环境。
在本实施例中，外螺纹柱702和圆柱703之间可以一体成型，也可以分体成型后通过焊接或者其它方式同心连接在一起，只需要保证外螺纹柱702和内螺纹孔704之间能够螺纹咬合，且圆柱703和圆柱孔705之间能够过盈配合连接并实现机械密封效果即可，其次，外螺纹柱702也可以和阀瓣本体701之间是一体成型，或者通过焊接等其它方式同心连接在一起。
在一实施例中，密封结构也可以是设置在外螺纹柱702端部的环形密封圈和同样设置的圆柱孔705，通过在外螺纹柱702的端部设置环形密封圈与圆柱孔705的内壁滑动接触，从而产生密封效果，避免内螺纹孔704和外螺纹柱702之间的间隙中流入介质，但相比于本实施例中的圆柱703和圆柱孔705的过盈配合连接，此技术手段缺少了防止外螺纹柱702和内螺纹孔704之间连接松动的效果，本实施例的上述两种技术手段具有更好的效果。
圆柱703和外螺纹柱702一体成型，使得整体生产工艺更加便捷，整体结构也更加稳定。
将内螺纹孔704设置为盲孔，实现对内螺纹孔704一端的密封，还限制了阀体1内部流通的介质进入外螺纹柱702和内螺纹孔704的间隙，避免了阀体1内部产生积液，保证了生产过程中的卫生和无菌工艺。
当内螺纹孔704设置为盲孔时，内螺纹孔704朝向阀瓣本体701的一端处于连通状态，内螺纹孔704背离阀瓣本体701的一端处于封闭状态，从而使得阀门内部流通的介质无法从内螺纹孔704上背离阀瓣本体701的一端进入内螺纹孔704内，对内螺纹孔704的一端形成密封效果，继而避免了内螺纹孔704和外螺纹柱702连接处的间隙产生积液的问题。
且为了保证阀芯密封垫5能够通过阀芯密封垫固定圈6固定至阀瓣本体701的一侧，外螺纹柱702的长度应小于内螺纹孔704的深度，保证了阀芯密封垫固定圈6与阀瓣本体701分别以及阀芯密封垫5相抵。
实施例2：
如图2以及图5至图8所示，本申请实施例还提供了一种直通型截止阀，包括阀体1，阀体1内设置有两个与外部连通的腔室8，两个腔室8内分别设置有支路11，两个腔室8的连通处设置有截止腔9，截止腔9和其中一个腔室8的连通处设置有阀口，截止腔9内贯穿滑动连接有延伸至阀体1外部的阀轴4，且阀轴4位于阀体1内部的一端与阀瓣本体701固定连接。
本申请在抗生素生产的实际使用过程中，两个腔室8与阀体1外部的连通处连接外部管道，阀轴4与执行机构连接，执行机构包括电动型、气动型或者手动型。
当需要打开阀体1内部的通道时，执行机构驱动阀轴4向上运动，阀瓣7和阀芯密封垫5以及阀芯密封垫固定圈6同步跟随阀轴4运动，阀芯密封垫5脱离截止腔9和腔室8连通处的阀口，从而使得截止腔9同时和两个腔室8连通，此时阀体1内部处于介质可流通的状态。
当需要关闭阀体1内部供介质流通的通道时，执行机构驱动阀轴4向下运 动，使得阀瓣7和阀芯密封垫5以及阀芯密封垫固定圈6同步跟随阀轴4运动，阀芯密封垫5运动至与阀口的外壁相抵形成密封，从而阻断介质在阀体1内部流通，实现介质在阀体1内部的流通和断流。
本申请通过阀轴4带动阀瓣7和阀芯密封垫5上下运动，使得阀芯密封垫5远离或者压紧腔室8和截止腔9的连通处，从而实现阀体1内部的开启或者关闭。
阀瓣7应用在本实施例中，使得本实施例在实际应用时，直通型截止阀的内部减少了死角的存在，避免了直通型截止阀内阀瓣7处积液的存在，减小了直通型截止阀在杀菌清洁时的难度。
由于食品、医药和化工等行业也有直通型截止阀的应用，本申请提供的直通型截止阀也可以应用于这些行业中，且直通型截止阀的使用需要符合具体使用要求。
阀口的周侧设置有环形倾斜流道10，且环形倾斜流道10与截止腔9连通，在阀瓣本体701封闭或者打开阀口时，其中一个腔室8与截止腔9始终保持连通并与环形倾斜流道10连通，两个腔室8内分别设置有设置为供介质流出腔室8和进入腔室8的支路11，且环形倾斜流道10的内底部由高到低向一侧倾斜。
相关技术中的直通型截止阀的内部也设置有环形流道，也是设置在阀口周侧，但是相关技术中的环形流道的内底部为水平设置，即在阀体1安装完成后阀轴4呈竖直状态，且相关技术中的环形流道的内底部为水平面。
而在本申请中，如图2和图8所示，截止腔9始终与图示右侧的腔室8连通，图示左侧的腔室8在阀口被阀瓣7封闭时与截止腔9处于不连通的状态，并且环形倾斜流道10始终与图示右侧的腔室8保持连通状态。
在图2和图8中，本申请中的直通型截止阀分别处于阀口被封闭和被打开的状态，当本申请处于图8所示阀口被打开的状态时，介质充满阀体1内部，并流经两个腔室8及截止腔9通过阀体1，此时介质也会填充满位于阀口周侧的环形倾斜流道10。
当本申请处于图2所示阀口被封闭的状态时，介质从阀体1内部流出，而位于环形倾斜流道10内的介质则会流入与环形倾斜流道10连通的腔室8内，即流入图示2中右侧的腔室8内，由于环形倾斜流道10的底部是由高到低向一侧倾斜，使得落入环形倾斜流道10中的介质在自身重力的作用下沿环形倾斜流道10的内底部流动，并通过环形倾斜流道10和左侧的腔室8之间的连通处进入左侧腔室8内，然后通过左侧的腔室8内的支路11排出，避免了环形倾斜流道10中存在积液，进一步减小了阀体1中存在的积液的可能性，保证了阀体1内部在抗生素生产过程中的卫生和无菌工艺环境，且腔室8内的冷凝水等也可 通过支路11流出腔室8外。
其次，当两个腔室8和截止腔9内在需要进行消毒灭菌时，消毒灭菌所需要的介质例如水蒸气等既可以通过腔室8与外部连通的位置进入腔室8内部，也可以通过支路11进入腔室8内部。
两个腔室8与阀体1外部的连通处通过焊接的方式与外部管道连接。
相关技术中的直通型截止阀的阀体1外部和腔室8的连通处一般通过普通法兰进行连接，并通过平面密封垫进行密封，由于平面密封垫无法进行精确定位，且普通法兰的密封面也比较粗糙，使得法兰和法兰之间在连接后会存在积液，本申请通过焊接的方式与外部管道连接可以消除对接的死角和密封问题，避免了积液的存在。
两个腔室8与阀体1外部的连通处还通过卫生法兰与外部管道连接，且卫生法兰通过凹凸面与O型密封圈配合密封阀体1与外部管道的连接处。
由前述可知，相关技术中的直通型截止阀的阀体1外部和腔室8的连通处一般通过普通法兰进行连接，并通过平面密封垫进行密封，由于平面密封垫无法进行精确定位，且普通法兰的密封面也比较粗糙，使得法兰和法兰之间在连接后会存在积液，通过采用卫生法兰连接，并配合O型密封圈密封，可以较大程度的减少连接之后产生的死角以及密封垫之间的死角。
阀体1上设置有与截止腔9连通的开口，开口处通过密封垫密封连接有阀盖3，阀盖3上设置有与截止腔9内部连通的阀颈2，阀轴4滑动密封连接于阀颈2内。
阀体1上的开口通过阀盖3和密封垫进行密封，从而便于阀轴4进行运动，并避免介质的流出，保证阀体1内部密封性良好。
阀轴4和阀颈2之间通过组合填料密封。保证了阀轴4在上下运动过程中的密封性良好，避免介质通过阀轴4和阀颈2之间的间隙流出至阀体1外部。

Claims (10)

  1. 一种阀门启闭件，包括阀瓣(7)；
    其中，所述阀瓣(7)的一侧依次设置有阀芯密封垫(5)，及设置为将阀芯密封垫(5)固定至阀瓣(7)上的阀芯密封垫固定圈(6)；
    所述阀瓣(7)包括阀瓣本体(701)，所述阀瓣本体(701)下方同心设置有外螺纹柱(702)，所述阀芯密封垫固定圈(6)上设置有与外螺纹柱(702)螺纹连接的内螺纹孔(704)，所述外螺纹柱(702)背离阀瓣本体(701)的一侧设置有密封结构，所述密封结构设置为限制介质进入外螺纹柱(702)和内螺纹孔(704)的间隙中。
  2. 根据权利要求1所述的一种阀门启闭件，其中，所述密封结构包括圆柱(703)，所述内螺纹孔(704)下方为圆柱孔(705)，所述圆柱(703)与所述圆柱孔(705)过盈配合连接。
  3. 根据权利要求2所述的一种阀门启闭件，其中，所述圆柱(703)和外螺纹柱(702)一体成型。
  4. 根据权利要求1所述的一种阀门启闭件，其中，所述内螺纹孔(704)设置为盲孔以对所述内螺纹孔(704)一端密封。
  5. 一种包含权利要求1-4任一项所述阀门启闭件的直通型截止阀，包括阀体(1)；
    其中，所述阀体(1)内设置有两个与外部连通的腔室(8)，两个所述腔室(8)内分别设置有支路(11)，两个所述腔室(8)的连通处设置有截止腔(9)，所述截止腔(9)和其中一个腔室(8)的连通处设置有阀口，所述截止腔(9)内贯穿滑动连接有延伸至阀体(1)外部的阀轴(4)，且所述阀轴(4)位于阀体(1)内部的一端与阀瓣本体(701)固定连接。
  6. 根据权利要求5所述的直通型截止阀，其中，所述阀口的周侧设置有环形倾斜流道(10)，且所述环形倾斜流道(10)与截止腔(9)连通，在所述阀瓣本体(701)封闭或者打开阀口时，其中一个所述腔室(8)与截止腔(9)始终保持连通并与环形倾斜流道(10)连通，两个所述腔室(8)内分别设置有供介质流出腔室(8)和进入腔室(8)的支路(11)，且所述环形倾斜流道(10)的内底部由高到低向一侧倾斜。
  7. 根据权利要求5所述的直通型截止阀，其中，两个所述腔室(8)与阀体(1)外部的连通处分别通过焊接的方式与外部管道连接。
  8. 根据权利要求5所述的直通型截止阀，其中，两个所述腔室(8)与所述阀体(1)外部的连通处通过卫生法兰与外部管道连接，且所述卫生法兰通过凹凸面与O型密封圈配合密封所述阀体(1)与所述外部管道的连接处。
  9. 根据权利要求5所述的直通型截止阀，其中，所述阀体(1)上设置有与截止腔(9)连通的开口，所述开口通过密封垫密封连接有阀盖(3)，所述阀盖(3)上设置有与所述截止腔(9)内部连通的阀颈(2)，所述阀轴(4)滑动密封连接于所述阀颈(2)内。
  10. 根据权利要求9所述的直通型截止阀，其中，所述阀轴(4)和所述阀颈(2)之间通过组合填料密封。
PCT/CN2024/102525 2023-07-13 2024-06-28 阀门启闭件及直通型截止阀 Pending WO2025011366A1 (zh)

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