CN110206908A - 一种组合式球阀阀芯 - Google Patents

一种组合式球阀阀芯 Download PDF

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Publication number
CN110206908A
CN110206908A CN201910119224.7A CN201910119224A CN110206908A CN 110206908 A CN110206908 A CN 110206908A CN 201910119224 A CN201910119224 A CN 201910119224A CN 110206908 A CN110206908 A CN 110206908A
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CN
China
Prior art keywords
valve core
restricting orifice
orifice
type
piece
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.)
Withdrawn
Application number
CN201910119224.7A
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English (en)
Inventor
万胜军
高德明
王明
毛健
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.)
HARBIN POWER PLANT VALVE CO Ltd
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HARBIN POWER PLANT VALVE CO Ltd
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.)
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Priority to CN201910119224.7A priority Critical patent/CN110206908A/zh
Publication of CN110206908A publication Critical patent/CN110206908A/zh
Withdrawn legal-status Critical Current

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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
    • F16K47/00—Means in valves for absorbing fluid energy
    • F16K47/04—Means in valves for absorbing fluid energy for decreasing pressure or noise level, the throttle being incorporated in the closure member
    • F16K47/045—Means in valves for absorbing fluid energy for decreasing pressure or noise level, the throttle being incorporated in the closure member and the closure member being rotatable
    • 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
    • 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
    • F16K5/08—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
    • 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
    • F16K5/08—Details
    • F16K5/10—Means for additional adjustment of the rate of flow
    • 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
    • F16K5/08—Details
    • F16K5/12—Arrangements for modifying the way in which the rate of flow varies during the actuation of the valve

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Taps Or Cocks (AREA)

Abstract

本发明涉及一种组合式球阀阀芯，包括球形阀芯体、节流孔板。阀芯体的顶端为阀杆接口，阀芯体的中部为圆形通道，通道一侧是小孔式球面调节副，阀芯体的圆形通道内沿流道方向设置1块节流孔板，其下部有节流孔。节流孔板与圆形通道的上部空间设置1块或多块节流孔板，下部空间未设置节流孔板。该阀芯既适用于小流量高压差工况，也适用于大流量小压差工况，阀门适用范围广。

Description

一种组合式球阀阀芯
技术领域
本发明涉及一种组合式球阀阀芯，适用于小流量高压差、大流量小压差并存的工况，用于火电、核电、石化领域的球阀。
背景技术
现有可调节流量的球阀用阀芯为“V”形阀芯、节流小孔+节流孔板组合式阀芯或圆形通孔阀芯。圆形通孔阀芯的调节精度低；“V”形阀芯对于液体介质调节精度较高，但对于蒸汽介质的调节效果不理想，特别是高压差介质工况，极易产生冲蚀现象；节流小孔+节流孔板组合式阀芯仅适用于高压差工况。但目前火电、核电、石化领域设备存在小流量高压差、大流量小压差并存的工况，“V”形阀芯、节流小孔+节流孔板组合式阀芯或圆形通孔阀芯不适用于上述复杂工况。高压差工况下，“V”形阀芯、圆形通孔阀芯易产生冲蚀，阀门使用寿命短；节流小孔+节流孔板组合式阀芯不适用于大流量小压差工况，阀芯流通能力不足。
发明内容
本发明提供一种组合式球阀阀芯，小开度下具有多级调节、减压功能，大开度下变为圆形通孔式阀芯，适用于小流量高压差、大流量小压差并存的工况，阀门适用范围广，使用寿命长，可靠性高。
本发明的技术方案是：它包括球形阀芯体、节流孔板，阀芯体的上端为阀杆接口，阀芯体的中部为圆形通道，通道一侧是小孔式球面调节副，阀芯体的圆形通道内沿流道方向设置 1块A型节流孔板，A型节流孔板仅在下半部分加工有节流孔；节流孔板与圆形通道的上部空间设置1块或多块B型节流孔板，下部空间不设置节流孔板。
本发明的有益效果是：高压差工况时，球形阀芯体在前部分行程下工作，可精确调节介质的流量和压力，通过多级减压，有效避免汽蚀现象和高速介质冲蚀，提高阀门使用寿命；小压差、大流量工况时，球形阀芯体在大开度下工作，下部空间开启，下部介质仅经球面节流副一级减压，达到较大的流通能力，阀门适用范围广。
附图说明
图1是本发明的全开结构示意图；
图2是本发明的小开度介质流动示意图
图3球形阀芯体的A-A向示图
图4球面调节副B向示意图
图5是A型节流孔板示意图
图6是B型节流孔板示意图
图中，1.球形阀芯体、2.阀杆接口、3.阀座、4.A型节流孔板、5.B型节流孔板、6.球面调节副、7.圆形通道
具体实施方式
如图1、图2、图3、图4、图5、图6所示，本发明包括球形阀芯体(1)、阀座(3)、A 型节流孔板(4)、B型节流孔板(5)、球面调节副(6)、圆形通道(7)等。球形阀芯体(1) 的中部为圆形通道(7)，通道一侧是小孔式球面调节副，阀芯体的圆形通道内沿流道方向设置1块A型节流孔板，A型节流孔板仅在下半部分加工有节流孔；A型节流孔板与圆形通道的上部空间内设置1块或多块B型节流孔板，下部空间不设置节流孔板。通过阀杆接口(2)，球形阀芯体(1)与阀杆相连，由阀杆带动球形阀芯体(1)旋转。当阀杆带动球形阀芯体(1) 从关位旋转至如图2所示位置时，介质先流经球面调节副(6)，再流经B型节流孔板(5)，最后经A型节流孔板(4)流出，此开度范围适用于高压差工况；当阀杆带动球形阀芯体(1) 从图2所示位置旋转至图1位置时，A型节流孔板的下部空间开启，下部介质只流经球面调节副(6)，阀门流通能力大大增加，适用于小压差、大流量工况，从而达到阀门适用范围广的目的。

Claims (3)

1.一种组合式球阀阀芯，包括球形阀芯体、节流孔板；阀芯的顶端为阀杆接口，阀芯体的中部为圆形通道，其特征是圆形通道(7)的一侧是小孔式球面调节副(6)，阀芯体的圆形通道内沿流道方向设置1块A型节流孔板，A型节流孔板与圆形通道的上部空间内设置1块或多块B型节流孔板。
2.根据权利要求1所述的一种组合式球阀阀芯，其特征是阀芯体的圆形通道内沿流道方向设置1块A型节流孔板，A型节流孔板与圆形通道的上部空间内设置1块或多块B型节流孔板；下部空间不设置节流孔板。
3.根据权利要求1所述的一种组合式球阀阀芯，其特征是A型节流孔板仅在下半部分加工有节流孔。
CN201910119224.7A 2019-02-17 2019-02-17 一种组合式球阀阀芯 Withdrawn CN110206908A (zh)

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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5771929A (en) * 1996-10-24 1998-06-30 Dresser Industries, Inc. Low noise ball valve assembly with airfoil insert
RU2327920C1 (ru) * 2006-11-24 2008-06-27 Александр Павлович Андреев Клапан регулирующий
CN106051205A (zh) * 2016-08-16 2016-10-26 航天长征化学工程股份有限公司 一种调节球阀
CN106641315A (zh) * 2016-11-29 2017-05-10 无锡海力自控工程有限公司 一种调节球阀
CN107740869A (zh) * 2017-11-24 2018-02-27 航天长征化学工程股份有限公司 一种降噪球阀
CN107917229A (zh) * 2017-12-01 2018-04-17 航天长征化学工程股份有限公司 一种静音球阀
CN209557705U (zh) * 2019-02-17 2019-10-29 哈电集团哈尔滨电站阀门有限公司 一种组合式球阀阀芯

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5771929A (en) * 1996-10-24 1998-06-30 Dresser Industries, Inc. Low noise ball valve assembly with airfoil insert
RU2327920C1 (ru) * 2006-11-24 2008-06-27 Александр Павлович Андреев Клапан регулирующий
CN106051205A (zh) * 2016-08-16 2016-10-26 航天长征化学工程股份有限公司 一种调节球阀
CN106641315A (zh) * 2016-11-29 2017-05-10 无锡海力自控工程有限公司 一种调节球阀
CN107740869A (zh) * 2017-11-24 2018-02-27 航天长征化学工程股份有限公司 一种降噪球阀
CN107917229A (zh) * 2017-12-01 2018-04-17 航天长征化学工程股份有限公司 一种静音球阀
CN209557705U (zh) * 2019-02-17 2019-10-29 哈电集团哈尔滨电站阀门有限公司 一种组合式球阀阀芯

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Address after: 150046 No. 1, mat street, Xiangfang District, Heilongjiang, Harbin

Applicant after: HARBIN POWER PLANT VALVE Co.,Ltd.

Address before: Hanan Hanan Industrial Park core area three road 150066 Heilongjiang city of Harbin province No. 6

Applicant before: HARBIN POWER PLANT VALVE Co.,Ltd.

WW01 Invention patent application withdrawn after publication
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Application publication date: 20190906