CN205001553U - Special high performance ball valve in high temperature high pressure power station - Google Patents
Special high performance ball valve in high temperature high pressure power station Download PDFInfo
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- CN205001553U CN205001553U CN201520769387.7U CN201520769387U CN205001553U CN 205001553 U CN205001553 U CN 205001553U CN 201520769387 U CN201520769387 U CN 201520769387U CN 205001553 U CN205001553 U CN 205001553U
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Abstract
本实用新型涉及一种高温高压电站专用高性能球阀，包括阀体、阀座、球体、阀杆、阀盖、传动装置，阀体和阀盖采用锻钢件；主要是在阀体与阀盖之间安装金属密封环，该金属密封环的中心线与阀体通道中心线垂直，金属密封环的外环面为圆锥面；出口阀座固定密封安装在阀体出口通道内，进口阀座通过安装座浮动安装在阀体进口通道内，所述安装座固定密封安装在阀体进口通道内，进口阀座背面外圆柱面动密封安装在安装座通道孔内，在进口阀座背面凸肩与安装座端面之间安装蝶簧。具有耐高温、耐高压、耐磨损、密封性能可靠等特点，适用于电站超临界、超超临界的高温高压介质工况。
The utility model relates to a special high-performance ball valve for high-temperature and high-pressure power stations, including a valve body, a valve seat, a ball, a valve stem, a valve cover, and a transmission device. The valve body and the valve cover are made of forged steel parts; A metal sealing ring is installed between them. The center line of the metal sealing ring is perpendicular to the center line of the valve body channel. The outer ring surface of the metal sealing ring is a conical surface; The installation seat is installed floatingly in the inlet passage of the valve body, and the installation seat is fixed and sealed in the inlet passage of the valve body. The outer cylindrical surface of the back of the inlet seat is dynamically sealed in the passage hole of the installation seat. A butterfly spring is installed between the end faces of the mounting seat. It has the characteristics of high temperature resistance, high pressure resistance, wear resistance and reliable sealing performance. It is suitable for supercritical and ultra supercritical high temperature and high pressure medium working conditions of power stations.
Description
技术领域 technical field
本实用新型属于阀门领域，特别是关于一种上装式球阀。本实用新型适用于电站超临界、超超临界的高温高压介质工况。 The utility model belongs to the field of valves, in particular to a top-mounted ball valve. The utility model is suitable for supercritical and ultra-supercritical high-temperature and high-pressure medium working conditions of power stations.
背景技术 Background technique
在电站的超临界高压介质管道，要求阀门具有耐高温、耐高压性能。上装式球阀因结构简单、启闭便捷、维护方便，普遍使用于火电站超临界、超超临界等高温、高压介质工况。其特点是阀体采用一体锻钢件，球体、阀座从阀体上端面开口处装入，球体与阀座之间采用金属密封，具有耐高温、耐高压性能和维修方便等特点。其主要缺点是阀盖由螺栓安装在阀体上，在阀盖与阀体之间安装密封垫，高压工况下螺栓易被介质压力拉松，降低中腔密封性能；进出口阀座一般都采用浮动阀座结构，高压介质压力推动出口阀座移动，降低球体与阀座密封面之间的密封比压，影响密封性能。 In supercritical high-pressure medium pipelines in power stations, valves are required to be resistant to high temperature and high pressure. Due to its simple structure, convenient opening and closing, and convenient maintenance, the top-entry ball valve is widely used in high-temperature and high-pressure medium conditions such as supercritical and ultra-supercritical thermal power plants. Its characteristic is that the valve body is made of integral forged steel, the ball and the valve seat are installed from the opening on the upper end of the valve body, and the ball and the valve seat are sealed with metal, which has the characteristics of high temperature resistance, high pressure resistance and convenient maintenance. Its main disadvantage is that the valve cover is installed on the valve body by bolts, and a gasket is installed between the valve cover and the valve body. The floating valve seat structure is adopted, and the pressure of the high-pressure medium pushes the outlet valve seat to move, reducing the sealing specific pressure between the ball and the sealing surface of the valve seat and affecting the sealing performance.
发明内容 Contents of the invention
本实用新型的目的是针对现有技术存在的缺点，提供一种耐高温、耐高压、密封性能好的高温高压电站专用高性能球阀。 The purpose of this utility model is to provide a special high-performance ball valve for high-temperature and high-pressure power stations with high temperature resistance, high pressure resistance and good sealing performance in view of the shortcomings of the existing technology.
本实用新型的技术方案包括阀体、阀座、球体、阀杆、阀盖、传动装置，阀体和阀盖采用锻钢件，阀体上端面内制有安装口，球体表面喷涂硬质合金材料，阀座密封面堆焊硬质合金材料，阀盖由固定螺栓固定安装在阀体上端面内，阀杆下端与球体固定连接；主要是在阀体与阀盖之间安装金属密封环，该金属密封环的中心线与阀体通道中心线垂直，金属密封环的外环面为圆锥面；出口阀座固定密封安装在阀体出口通道内，进口阀座通过安装座浮动安装在阀体进口通道内，所述安装座固定密封安装在阀体进口通道内，进口阀座背面外圆柱面动密封安装在安装座通道孔内，在进口阀座背面凸肩与安装座端面之间安装蝶簧。 The technical scheme of the utility model includes a valve body, a valve seat, a ball, a valve stem, a valve cover, and a transmission device. The valve body and the valve cover are made of forged steel parts. material, the sealing surface of the valve seat is surfacing with hard alloy material, the valve cover is fixedly installed in the upper end surface of the valve body by fixing bolts, and the lower end of the valve stem is fixedly connected with the ball; mainly a metal sealing ring is installed between the valve body and the valve cover, The centerline of the metal sealing ring is perpendicular to the centerline of the valve body channel, and the outer ring surface of the metal sealing ring is a conical surface; the outlet valve seat is fixed and sealed in the outlet channel of the valve body, and the inlet valve seat is floatingly installed on the valve body through the mounting seat In the inlet passage, the mounting seat is fixed and sealed in the inlet passage of the valve body, and the outer cylindrical surface of the back of the inlet valve seat is dynamically sealed in the passage hole of the installation seat. reed.
最好是，阀杆与阀盖之间安装自动补偿密封装置，该自动补偿密封装置由填料、压盖、蝶型补偿弹簧和压板组成，蝶型补偿弹簧由螺栓安装的压盖的上平面与压板下平面之间，该螺栓穿过压板的安装孔与阀盖上端面的螺孔连接。 Preferably, an automatic compensation sealing device is installed between the valve stem and the valve cover, and the automatic compensation sealing device is composed of a packing, a gland, a butterfly compensation spring and a pressure plate. Between the lower planes of the pressure plate, the bolt passes through the installation hole of the pressure plate and is connected with the screw hole on the upper end surface of the valve cover.
本实用新型的优点是阀体与阀盖之间安装金属密封环，该金属密封环的外环面为圆锥面，介质压力作用在金属密封环的内环面上，将金属密封环径向撑开，其外环面的圆锥面与阀体、阀盖之间楔紧密封，达到压力自密封；进口阀座采用浮动结构，吸收高温膨胀，出口阀座采用固定结构，高压介质推动球体与其压紧密封，实现压力自密封。具有耐高温、耐高压、耐磨损、密封性能可靠等特点，适用于电站超临界、超超临界的高温高压介质工况。 The utility model has the advantage that a metal sealing ring is installed between the valve body and the valve cover, the outer ring surface of the metal sealing ring is a conical surface, and the medium pressure acts on the inner ring surface of the metal sealing ring, radially supporting the metal sealing ring The conical surface of the outer ring surface is wedge-tightly sealed with the valve body and bonnet to achieve pressure self-sealing; the inlet valve seat adopts a floating structure to absorb high temperature expansion, and the outlet valve seat adopts a fixed structure, and the high-pressure medium pushes the ball against it. Tight seal to achieve pressure self-sealing. It has the characteristics of high temperature resistance, high pressure resistance, wear resistance and reliable sealing performance. It is suitable for supercritical and ultra supercritical high temperature and high pressure medium working conditions of power stations.
附图说明 Description of drawings
图1是本实用新型的结构示意图。 Fig. 1 is a structural representation of the utility model.
1阀体、2阀座、3蝶簧、4安装座、5球体、6金属密封环、7阀盖、8阀杆、9填料、10压盖、11蝶型补偿弹簧、12压板、13螺栓、14支架、15传动装置。 1 valve body, 2 valve seat, 3 butterfly spring, 4 mounting seat, 5 ball, 6 metal sealing ring, 7 valve cover, 8 valve stem, 9 packing, 10 gland, 11 butterfly compensation spring, 12 pressure plate, 13 bolt , 14 brackets, 15 transmissions.
具体实施方式 detailed description
如图1所示的高温高压电站专用高性能球阀，包括阀体1、阀座2、球体5、阀杆8、阀盖7、传动装置15，阀体1和阀盖7采用锻钢件，提高耐压性能，阀体1上端面内制有安装口，球体5、阀座2等内件从该安装口装入阀体1内腔，实现上装式结构，球体5表面喷涂硬质合金材料，阀座2密封面堆焊硬质合金材料，提高耐磨性能，阀盖7由固定螺栓固定安装在阀体1上端面内，阀杆8下端与球体5固定连接；在阀体1与阀盖7之间安装金属密封环6，该金属密封环6的中心线与阀体1通道中心线垂直，金属密封环6的外环面为圆锥面，在介质压力作用在金属密封环6的内环面，将金属密封环6径向撑开与阀体1和阀盖7楔紧密封，实现中腔压力自密封；出口阀座固定密封安装在阀体1出口通道内，进口阀座通过安装座4浮动安装在阀体1进口通道内，安装座4固定密封安装在阀体1进口通道内，进口阀座背面外圆柱面动密封安装在安装座4通道孔内，进口阀座背面凸肩与安装座4端面之间安装蝶簧3。 As shown in Figure 1, the special high-performance ball valve for high-temperature and high-pressure power stations includes a valve body 1, a valve seat 2, a ball 5, a valve stem 8, a valve cover 7, and a transmission device 15. The valve body 1 and valve cover 7 are made of forged steel parts. To improve the pressure resistance performance, the upper end surface of the valve body 1 is provided with a mounting port, and internal parts such as the ball 5 and the valve seat 2 are installed into the inner cavity of the valve body 1 through the mounting port to realize a top-loading structure. The surface of the ball 5 is sprayed with hard alloy materials , the sealing surface of the valve seat 2 is surfacing with hard alloy materials to improve wear resistance, the valve cover 7 is fixed and installed in the upper end surface of the valve body 1 by fixing bolts, and the lower end of the valve stem 8 is fixedly connected with the ball 5; between the valve body 1 and the valve A metal sealing ring 6 is installed between the covers 7. The center line of the metal sealing ring 6 is perpendicular to the center line of the channel of the valve body 1. The outer ring surface of the metal sealing ring 6 is a conical surface. On the ring surface, the metal sealing ring 6 is radially stretched and wedged tightly with the valve body 1 and the valve cover 7 to realize the self-sealing of the middle chamber pressure; the outlet valve seat is fixed and sealed in the outlet passage of the valve body 1, and the inlet valve seat is installed through the installation Seat 4 is floatingly installed in the inlet passage of valve body 1, and installation seat 4 is fixed and sealed in the inlet passage of valve body 1. The dynamic seal of the outer cylindrical surface on the back of the inlet valve seat is installed in the channel hole of installation seat 4, and the back of the inlet valve seat has a shoulder Belleville spring 3 is installed between the mounting base 4 end faces.
阀杆8与阀盖7之间安装自动补偿密封装置，该自动补偿密封装置由填料9、压盖10、蝶型补偿弹簧11和压板12组成，蝶型补偿弹簧11由螺栓13安装的压盖10上平面与压板12下平面之间，该螺栓13穿过压板12的安装孔与阀盖7上端面的螺孔连接，在填料9磨损后，蝶型补偿弹簧11推动压盖10进一步压紧填料9，实现自动补偿功能，传动装置15通道支架14固定安装在阀盖7上端面内。 An automatic compensation sealing device is installed between the valve stem 8 and the valve cover 7. The automatic compensation sealing device is composed of a packing 9, a gland 10, a butterfly compensation spring 11 and a pressure plate 12. The butterfly compensation spring 11 is a gland installed by bolts 13. Between the upper plane of 10 and the lower plane of pressure plate 12, the bolt 13 passes through the mounting hole of the pressure plate 12 and is connected with the screw hole on the upper surface of the valve cover 7. After the packing 9 wears out, the butterfly compensation spring 11 pushes the gland 10 to be further compressed The stuffing 9 realizes the automatic compensation function, and the channel bracket 14 of the transmission device 15 is fixedly installed in the upper end surface of the valve cover 7 .
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520769387.7U CN205001553U (en) | 2015-09-28 | 2015-09-28 | Special high performance ball valve in high temperature high pressure power station |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520769387.7U CN205001553U (en) | 2015-09-28 | 2015-09-28 | Special high performance ball valve in high temperature high pressure power station |
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| Publication Number | Publication Date |
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| CN205001553U true CN205001553U (en) | 2016-01-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520769387.7U Expired - Lifetime CN205001553U (en) | 2015-09-28 | 2015-09-28 | Special high performance ball valve in high temperature high pressure power station |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112797179A (en) * | 2021-01-19 | 2021-05-14 | 金星阀门有限公司 | Top entry ball valve for thermal power ultra-supercritical |
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2015
- 2015-09-28 CN CN201520769387.7U patent/CN205001553U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112797179A (en) * | 2021-01-19 | 2021-05-14 | 金星阀门有限公司 | Top entry ball valve for thermal power ultra-supercritical |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180302 Address after: 325102 Sanjiang Industrial Park, Yongjia County, Wenzhou, Zhejiang Patentee after: ZHEJIANG BOTELI VALVE Group Address before: Yongjia Oubei County of Wenzhou City, Zhejiang province 325102 Dong'ou Industrial Zone Patentee before: BOTELI VALVE GROUP Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 325102 Sanjiang Industrial Park Yongjia County Wenzhou city Zhejiang Province Patentee after: Zhejiang bertley Technology Co.,Ltd. Address before: 325102 Sanjiang Industrial Park Yongjia County Wenzhou city Zhejiang Province Patentee before: ZHEJIANG BOTELI VALVE Group |
|
| CP01 | Change in the name or title of a patent holder | ||
| CX01 | Expiry of patent term |
Granted publication date: 20160127 |
|
| CX01 | Expiry of patent term |