一个技术性质

阀结构紧凑，运转平稳，密封性能好，使用寿命长，配置智能执行器可实现自动化。

两个结构特点和技术困难

结构特点：

1的特厚钢板焊接结构板的压力部分。 2平行双闸板金属密封结构，密封的硬质合金堆焊表面。打开阀门，密封摩擦副。第3组采用碟形弹簧楔形存储组织和机构，以确保阀门时，灵活可靠的运动。 4智能执行器配置，实现果阿。

技术难点：

1阀门等主要结构件的焊接与特厚钢板合计，首要问题是解决焊接渗透，没有技术构造变形。 2为了提高密封面的硬度和耐磨性，在与阀座密封面门，大面积为堆焊问题解决。 3焊接后的阀座收购，远离焊接密封面因关闭，焊后略有变形，对阀门密封性能直接影响。 4导向板铸铁材料大型超薄平板，铸造非常困难。阀门的碟形弹簧内置存储体组6，阀门被关闭，碟形弹簧压缩存储组，能源节约，以实现快速，可靠的阀门打开时。碟形弹簧组415?593℃下的高低温长期的工作，材料的选择是至关重要的。

的三种产品适用范围

平行板开裂双闸阀，适用于415?焦化含有裂解气中期和长期使用的材料593℃。

Parallel plate双闸cracking valve

One of the technical nature of

valve compact structure, smooth operation, good sealing performance, long life, configure intelligent actuators can realize automation.

two structural features and technical difficulties

structural characteristics:

1 pressure parts for the extra-thick steel plate welded structure. 2 parallel双闸sheet metal seal structure, sealing the surface of cemented carbide hardfacing. Valve is opened, sealed frictionless vice. Group 3 using disc spring wedge storage bodies and agencies, to ensure that the valve when the flexible and reliable sports. 4 Configuration of intelligent actuators, to achieve the GOA.

Technical Difficulties:

1 valve and other major structural parts are welded together with extra-thick steel plate, the primary issue is resolved weld penetration, and structural deformation without technology. 2 To enhance the sealing surface hardness and wear resistance, in the valve seat and the gate sealing surface, a large area to be addressed carbide surfacing problems. 3 acquired with the valve seat after the welding, the weld away from the sealing surface due to close, a slight deformation after welding, a direct impact on the valve sealing performance. 4-oriented plate of cast iron material for a large thin flat-panel, casting very difficult. 6 of the valve disc spring group built storage body, the valve is turned off, disc spring compression storage group, the energy savings to enable fast and reliable when the valve opens. Disc Spring Group 415 ~ 593 ℃ under high-temperature long-term work, the choice of materials is essential.

the scope of application of three products

parallel plate cracking双闸valves, suitable for 415 ~ 593 ℃ in coking material containing cracked gas medium and long-term use. (07-11-19)