CN107387798A - 上装式全通径弹性硬密封高温耐腐蚀熔盐双向阀 - Google Patents

上装式全通径弹性硬密封高温耐腐蚀熔盐双向阀 Download PDF

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CN107387798A
CN107387798A CN201710677066.8A CN201710677066A CN107387798A CN 107387798 A CN107387798 A CN 107387798A CN 201710677066 A CN201710677066 A CN 201710677066A CN 107387798 A CN107387798 A CN 107387798A
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valve
seat
valve element
elastic
high temperature
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李华祖
章文忠
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HUBEI TAIHE PETROCHEMICAL EQUIPMENT Co Ltd
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HUBEI TAIHE PETROCHEMICAL EQUIPMENT Co Ltd
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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
    • 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
    • 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
    • F16K27/06—Construction of housing; Use of materials therefor of taps or cocks
    • F16K27/067—Construction of housing; Use of materials therefor of taps or cocks with spherical plugs
    • 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
    • F16K5/0626—Easy mounting or dismounting means
    • F16K5/0636—Easy mounting or dismounting means the spherical plug being insertable from the top of the housing
    • 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
    • F16K5/0647—Spindles or actuating 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
    • F16K5/06—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
    • F16K5/0673—Composite packings
    • F16K5/0678—Composite packings in which only one of the components of the composite packing is contacting the plug
    • 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
    • F16K5/0689—Packings between housing and plug
    • 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
    • F16K5/0694—Spindle sealings
    • 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
    • F16K5/14—Special arrangements for separating the sealing faces or for pressing them together
    • F16K5/20—Special arrangements for separating the sealing faces or for pressing them together for plugs with spherical surfaces
    • F16K5/201—Special arrangements for separating the sealing faces or for pressing them together for plugs with spherical surfaces with the housing or parts of the housing mechanically pressing the seal against the plug

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

Abstract

上装式全通径弹性硬密封高温耐腐蚀熔盐双向阀，包括阀体、弹性阀座、阀芯、阀杆，阀体一边设有弹性阀座,弹性阀座与阀体通过阀座压板旋转锁紧。所述阀芯上安装密封圈，所述阀芯套入阀体的轴套中，弹性阀座与密封圈是凸对凸线密封。阀盖装入阀体的轴套，所述阀杆穿过阀盖、填料部分后锁紧。阀杆连接执行机构，执行机构的扭矩通过阀杆传递给阀芯，驱动阀芯启闭旋转。本发明上装式全通径弹性硬密封高温耐腐蚀熔盐双向阀，该双向阀结构简单无内腔死角、拆装方便、可在线维修成本低、全通径流通能力强、弹性阀座线密封，高温双流向密封可靠，降低了熔盐管线系统维护成本。

Description

上装式全通径弹性硬密封高温耐腐蚀熔盐双向阀
技术领域
本发明涉及一种用于高温熔盐管线阀门，具体是一种上装式全通径弹性硬密封高温耐腐蚀熔盐双向阀。
背景技术
熔盐是由硝酸钾（KNO3）、亚硝酸钠（NaNO2）及硝酸钠（NaNO3）的混合物。熔盐储能技术，是利用白天的光照把蓄热介质熔盐加热后存储起来，到夜晚释放，通过换热产生蒸汽推动汽轮机发电。相较于光伏发电由光直接转化为电能的存储缺陷，光热发电的储能技术能避免夜间、阴雨天不能发电的麻烦，可实现持续发电、调峰发电。
热载体炉将粉状的熔盐加热到熔点142℃以上，使其在熔融流动状态下循环使用。最高工作温度可达580℃的高温。熔盐管线运行中需保持必要的流动性，还需要耐高温、耐腐蚀的截断阀进行控制。而闸阀的密封面在启闭的频繁往复运动中，混流介质结垢沉淀于阀体下部空腔。普通o形球阀存在内腔死角会产生熔盐残留及结晶，造成阀门扭矩过大卡塞；而蝶阀流阻系数大，熔盐流动性能差；传统半球阀在高温熔盐管线中由于材质热膨胀性，造成阀门卡死；传统上装式半球阀，半球体加工难度高，更换半球体成本贵，阀座无法满足全通径要求，流通能力低。
发明内容
本发明所要解决的技术问题是提供上装式全通径弹性硬密封高温耐腐蚀熔盐双向阀，该双向阀结构简单无内腔死角、拆装方便、可在线维修成本低、全通径流通能力强、弹性阀座线密封，高温双流向密封可靠，降低了熔盐管线系统维护成本。
本发明采取的技术方案为：
上装式全通径弹性硬密封高温耐腐蚀熔盐双向阀，包括阀体、弹性阀座、阀芯、阀杆，阀体一边设有弹性阀座, 弹性阀座与阀体通过阀座压板旋转锁紧。所述阀芯上安装密封圈，所述阀芯套入阀体的轴套中，弹性阀座与密封圈是凸对凸线密封。阀盖装入阀体的轴套，所述阀杆穿过阀盖、填料部分后锁紧。阀杆连接执行机构，执行机构的扭矩通过阀杆传递给阀芯，驱动阀芯启闭旋转。
所述阀体为上装式结构， 所述弹性阀座与阀体之间设有第一金属缠绕垫；密封圈通过第二金属缠绕垫密封。
所述阀体上部设置上轴套，阀体底部设有下轴套，所述阀芯套入阀体的上、下轴套中，所述下轴套中设有第一调整垫，通过调节第一调整垫高度，使阀芯与弹性阀座配合；
阀盖装入上轴套；
所述阀杆依次穿过第二调整垫、阀盖、填料垫、填料组、填料压盖后锁紧；
所述阀盖与阀体之间设有第三金属缠绕垫。
所述阀芯回转中心有轴向偏心y的几何设计、密封圈回转中心有径向偏心x的几何设计。
所述阀芯上、下支撑为一体式半圆结构。
所述弹性阀座与密封圈是凸对凸线密封，由弹性阀座的耐松弛性能及阀体α角度介质密封比压补偿，α角度范围20～30°；弹性阀座采用Inconel X-750镍基高温合金。
所述密封圈与阀芯为分开式，密封圈采用Inconel 718合金。
所述阀体、阀芯采用CF8整体铸造成型；阀杆、轴套采用Inconel 718合金；所述金属缠绕垫采用304钢片缠绕柔性石墨。所述的结构中未说明材料均采用耐高温、耐腐蚀不锈钢材料。
本发明一种上装式全通径弹性硬密封高温耐腐蚀熔盐双向阀，技术效果如下：
1、楔形扭矩密封：阀门关闭时，执行机构的扭矩通过阀杆驱动阀芯与弹性阀座产生凸轮楔紧的机械强制密封，从机械原理上确保不依赖弹簧或工艺压力而实现严密关断，节省了制造时间及成本。
2、无摩擦自清洁：阀门一打开，阀芯立即与阀座脱离接触，流体即360°冲刷密封面，阀门关闭时，阀芯逐渐靠近阀座，开始刮扫清除阀座上的杂质、沉淀物、结晶，直至阀门关闭。在开关过程中，阀芯与阀座不接触、无摩擦、自清洁，保证了阀门使用的长寿命。
3、无阻力：全通径结构，阀芯全开时，过流面积大，无流阻，熔盐流动性能强，流量压力损失为零。
4、维修方便：在线检修时阀门拆卸、安装方便，且不易出现法兰漏盐状况，降低了工况系统维护成本。
5、备件成本低：密封圈与阀芯分开结构，更换密封圈比传统更换半球成本低。
6、无阀腔：无阀腔陷阱，无需泄压排放，从根本上消除了传统球阀因熔盐残留及结晶导致的危险。
7、高温双向密封：弹性阀座与密封圈是凸对凸线密封，避免了阀门在高温工况下材料热膨胀导致阀门卡死的风险，由弹性阀座的耐松弛性能，实现高温双向泄漏率突破；Inconel材料具有高强度、良好的韧性以及在高温环境具有耐腐蚀性，耐冲刷，使用寿命长。
8、无需短管：可直接焊接到工艺管线，无需焊接短管，极大地降低了成本。
9、重量轻：重量比传统顶装球阀降低 30% ，顶法兰尺寸减少 20% 。
附图说明
下面结合附图和实施例对本发明作进一步说明。
图1为本发明的结构示意图；
图2为图1中AA部面视图；
图3为图1中BB处的放大图；
图中标记说明：1-阀体，2-阀芯，3-第一调整垫，4-下轴套，5-阀座压板，6-第一金属缠绕垫，7-弹性阀座，8-第二金属缠绕垫，9-密封圈，10-阀杆，11-上轴套，12-填料垫，13-第三金属缠绕垫，14-阀盖，15-第一螺栓，16-填料组，17-填料压盖，18-支架，19-第二螺栓，20-执行机构，21-第三螺栓，22-第二调整垫， x-径向偏心，y轴向偏心。
具体实施方式
如图1~图3所示，上装式全通径弹性硬密封高温耐腐蚀熔盐双向阀，包括阀体1、弹性阀座7、阀芯2、阀杆10，阀体1一边设有弹性阀座7, 弹性阀座7与阀体1通过阀座压板5旋转锁紧。所述阀芯2上安装密封圈9，所述阀芯2套入阀体1的轴套中，弹性阀座7与密封圈9是凸对凸线密封。阀盖14装入阀体1的轴套，所述阀杆10穿过阀盖14、填料部分后锁紧。阀杆10连接执行机构20，执行机构20的扭矩通过阀杆10传递给阀芯2，驱动阀芯2启闭旋转。
所述阀体1为上装式结构， 所述弹性阀座7与阀体1之间设有第一金属缠绕垫6；密封圈9通过第二金属缠绕垫8密封；所述阀体1上部设置上轴套11，阀体1底部设有下轴套4，所述阀芯2套入阀体1的上、下轴套中，所述下轴套4中设有第一调整垫3，通过调节第一调整垫3高度，使阀芯2与弹性阀座7配合；阀盖14装入上轴套11；所述阀杆10依次穿过第二调整垫22、阀盖14、填料垫12、填料组16、填料压盖17后锁紧；所述阀盖14与阀体1之间设有第三金属缠绕垫13。
所述阀芯2回转中心有轴向偏心y的几何设计、密封圈9回转中心有径向偏心x的几何设计。阀杆10在两个平面上的偏移产生阀芯2 “旋转+ 平移”的双矢量凸轮运动。阀门关闭时，执行机构20的扭矩通过阀杆10驱动阀芯2，阀芯2上的密封圈9逐渐靠近弹性阀座7，开始刮扫清除弹性阀座上的杂质、沉淀物、结晶，直至阀门关闭，阀芯2上的密封圈9与弹性阀座7产生凸轮楔紧的机械强制密封；从机械原理上确保不依赖弹簧或工艺压力而实现严密关断；阀门打开，阀芯2立即与弹性阀座7脱离接触，无摩擦，保证了阀门使用的长寿命。
本发明阀门为上装式全通径结构，阀芯全开时，过流面积大，无流阻，熔盐流动性能强，流量压力损失为零，在线检修时阀门拆卸、安装方便，且不易出现法兰漏盐状况，降低了熔盐管线系统维护成本。
所述阀芯2上、下支撑为一体式半圆结构。完全支撑阀芯2吸收工艺载荷，确保阀芯2运行更稳定可靠，无阀腔陷阱，无需泄压排放，从根本上消除了传统球阀因熔盐残留及结晶导致的危险。
所述弹性阀座7与密封圈9是凸对凸线密封, 弹性阀座7的圆弧面与密封圈9的圆弧面靠圆弧的最凸点楔形挤压形成线密封。由弹性阀座7的耐松弛性能及阀体α角度介质密封比压补偿，α角度范围20～30°；弹性阀座7采用Inconel X-750镍基高温合金。
采用弹性阀座7与密封圈9是凸对凸线密封，避免了阀门在高温工况下材料热膨胀导致阀门卡死的风险，由弹性阀座7的耐松弛性能及阀体α角度介质密封比压补偿（α角度范围20～30°），实现高温双向泄漏率突破。所述弹性阀座7采用Inconel X-750镍基高温合金，在700℃以下具有良好的耐腐蚀和抗氧化性能，具有较高的强度和较好的耐松弛性能；所述密封圈9与阀芯2为分开式，加工简单，在线更换成本低，密封圈9采用Inconel 718合金，在700℃时具有高强度、良好的韧性以及在高温环境具有耐腐蚀性；密封面耐冲刷，使用寿命长。
所述上轴套11与填料垫12，保证了阀杆10垂直，减少了开启摩擦力，使开启关闭更稳定。
所述阀体1、阀芯2采用CF8整体铸造成型；阀杆10、轴套采用Inconel 718合金；所述金属缠绕垫采用304钢片缠绕柔性石墨。
所述执行机构20通过阀杆10可对阀芯2作90°启闭旋转运动。执行机构20可根据工况需要，选配蜗轮型，气动型、电动型传动。
工作原理：
执行机构20通过阀杆10可对阀芯2作90°启闭旋转运动。阀门关闭时，阀芯2上的密封圈9逐渐靠近弹性阀座7，开始刮扫清除弹性阀座7上的杂质等，直至阀门关闭，阀芯2上的密封圈9与弹性阀座7产生凸轮楔紧的机械强制密封；阀门打开，阀芯2立即与阀座脱离接触，无摩擦，保证了阀门使用的长寿命。弹性阀座7与密封圈9是凸对凸线密封，由弹性阀座7的耐松弛性能及阀体α角度介质密封比压补偿，实现高温双流向功能。
本发明双向阀采用弹性阀座7与密封圈9凸对凸线密封，该双向阀结构简单无内腔死角、拆装方便、可在线维修、流通能力强、高温双流向密封可靠，无摩擦自清洁，保证了阀门使用的长寿命，降低了熔盐管线系统维护成本。

Claims (10)

1.上装式全通径弹性硬密封高温耐腐蚀熔盐双向阀，包括阀体（1）、弹性阀座（7）、阀芯（2）、阀杆（10），其特征在于：阀体（1）一边设有弹性阀座（7）, 弹性阀座（7）与阀体（1）通过阀座压板（5）旋转锁紧；所述阀芯（2）上安装密封圈（9），所述阀芯（2）套入阀体（1）的轴套中，弹性阀座（7）与密封圈（9）是凸对凸线密封；阀盖（14）装入阀体（1）的轴套，所述阀杆（10）穿过阀盖（14）、填料部分后锁紧；阀杆（10）连接执行机构（20），执行机构（20）的扭矩通过阀杆（10）传递给阀芯（2），驱动阀芯（2）启闭旋转。
2.根据权利要求1所述上装式全通径弹性硬密封高温耐腐蚀熔盐双向阀，其特征在于：所述阀体（1）为上装式结构， 所述弹性阀座（7）与阀体（1）之间设有第一金属缠绕垫（6）；密封圈（9）通过第二金属缠绕垫（8）密封；所述阀体（1）上部设置上轴套（11），阀体（1）底部设有下轴套（4），所述阀芯（2）套入阀体（1）的上、下轴套中，所述下轴套（4）中设有第一调整垫（3），通过调节第一调整垫（3）高度，使阀芯（2）与弹性阀座（7）配合；阀盖（14）装入上轴套（11）；所述阀杆（10）依次穿过第二调整垫（22）、阀盖（14）、填料垫（12）、填料组（16）、填料压盖（17）后锁紧；所述阀盖（14）与阀体（1）之间设有第三金属缠绕垫（13）。
3.根据权利要求1所述上装式全通径弹性硬密封高温耐腐蚀熔盐双向阀，其特征在于：所述阀芯（2）回转中心有轴向偏心y的几何设计、密封圈（9）回转中心有径向偏心x的几何设计。
4.根据权利要求1所述上装式全通径弹性硬密封高温耐腐蚀熔盐双向阀，其特征在于：所述阀芯（2）上、下支撑为一体式半圆结构。
5.根据权利要求1所述上装式全通径弹性硬密封高温耐腐蚀熔盐双向阀，其特征在于：所述弹性阀座（7）与密封圈（9）是凸对凸线密封，由弹性阀座（7）的耐松弛性能及阀体（1）α角度介质密封比压补偿，α角度范围20～30°；弹性阀座（7）采用Inconel X-750镍基高温合金。
6.根据权利要求1所述上装式全通径弹性硬密封高温耐腐蚀熔盐双向阀，其特征在于：所述密封圈（9）与阀芯（2）为分开式，密封圈（9）采用Inconel 718合金。
7.根据权利要求1所述上装式全通径弹性硬密封高温耐腐蚀熔盐双向阀，其特征在于：所述阀体（1）、阀芯（2）采用CF8整体铸造成型；阀杆（10）、轴套采用Inconel 718合金；所述金属缠绕垫采用304钢片缠绕柔性石墨。
8.一种阀门无摩擦自清洁方法，其特征在于：阀门一打开，阀芯（2）立即与阀座脱离接触，流体即360°冲刷密封面；阀门关闭时，阀芯（2）逐渐靠近阀座，阀芯（2）上的密封圈（9）逐渐靠近弹性阀座（7），开始刮扫清除阀座上的杂质、沉淀物，直至阀门关闭，在开关过程中，阀芯（2）与阀座不接触、无摩擦、自清洁。
9.一种阀门启闭方法，其特征在于：执行机构（20）通过阀杆（10）对阀芯（2）作90°启闭旋转运动，阀门关闭时，阀芯（2）上的密封圈（9）逐渐靠近弹性阀座（7），开始刮扫清除弹性阀座（7）上的杂质等，直至阀门关闭，阀芯（2）上的密封圈（9）与弹性阀座（7）产生凸轮楔紧的机械强制密封；阀门打开，阀芯（2）立即与阀座脱离接触，无摩擦，保证了阀门使用的长寿命；弹性阀座（7）与密封圈（9）是凸对凸线密封，由弹性阀座（7）的耐松弛性能及阀体α角度介质密封比压补偿，实现高温双流向功能。
10.如权利要求1~9所述任意一种上装式全通径弹性硬密封高温耐腐蚀熔盐双向阀，其特征在于：用于高温工况下材料的双流向密封。
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109357035A (zh) * 2018-12-29 2019-02-19 浙江东信阀门有限公司 一种阀杆轴向密封球阀
EP4048925A4 (en) * 2019-10-25 2023-07-26 ITT Manufacturing Enterprises, LLC SEGMENTED VALVE WITH SEALING RIB

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2384060Y (zh) * 1999-07-01 2000-06-21 王春莲 金属弹性密封球阀
CN1587763A (zh) * 2004-07-15 2005-03-02 浙江大学 锥面硬密封球阀
CN2708056Y (zh) * 2004-05-19 2005-07-06 重庆川武仪表有限公司 一种浮动阀座偏心半球球阀
CN203892602U (zh) * 2014-04-24 2014-10-22 欧冠阀门科技有限公司 一种三偏心金属硬密封半球阀
CN204922068U (zh) * 2015-07-03 2015-12-30 浙江西铁阀门有限公司 一种上装式全通径偏心半球阀
CN105402435A (zh) * 2015-12-24 2016-03-16 四川勃朗蜀威科技有限公司 一种角行程调节阀阀座结构
CN205715755U (zh) * 2016-04-29 2016-11-23 上海精艺阀门制造有限公司云南分公司 一种双偏心补偿式半球熔盐阀
CN207131905U (zh) * 2017-08-09 2018-03-23 湖北泰和石化设备有限公司 上装式全通径弹性硬密封高温耐腐蚀熔盐双向阀

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2384060Y (zh) * 1999-07-01 2000-06-21 王春莲 金属弹性密封球阀
CN2708056Y (zh) * 2004-05-19 2005-07-06 重庆川武仪表有限公司 一种浮动阀座偏心半球球阀
CN1587763A (zh) * 2004-07-15 2005-03-02 浙江大学 锥面硬密封球阀
CN203892602U (zh) * 2014-04-24 2014-10-22 欧冠阀门科技有限公司 一种三偏心金属硬密封半球阀
CN204922068U (zh) * 2015-07-03 2015-12-30 浙江西铁阀门有限公司 一种上装式全通径偏心半球阀
CN105402435A (zh) * 2015-12-24 2016-03-16 四川勃朗蜀威科技有限公司 一种角行程调节阀阀座结构
CN205715755U (zh) * 2016-04-29 2016-11-23 上海精艺阀门制造有限公司云南分公司 一种双偏心补偿式半球熔盐阀
CN207131905U (zh) * 2017-08-09 2018-03-23 湖北泰和石化设备有限公司 上装式全通径弹性硬密封高温耐腐蚀熔盐双向阀

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109357035A (zh) * 2018-12-29 2019-02-19 浙江东信阀门有限公司 一种阀杆轴向密封球阀
CN109357035B (zh) * 2018-12-29 2023-12-01 浙江东信阀门有限公司 一种阀杆轴向密封球阀
EP4048925A4 (en) * 2019-10-25 2023-07-26 ITT Manufacturing Enterprises, LLC SEGMENTED VALVE WITH SEALING RIB

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