Combined material high temperature and high pressure slag discharge ball valve
A high-temperature and high-pressure ball valve technology, which is applied in the field of high-pressure slag discharge ball valves and high-temperature combined materials, can solve the problems of reducing the service life of the two valves and economic losses, and achieve the effects of increasing service life, improving service life and reducing production costs
Active Publication Date: 2016-01-13
ZHEJIANG ZHONGDE AUTOMATIC CONTROL VALVE +1
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Problems solved by technology
In this case, the service life of the two valves is greatly reduced due to the influence of dust accumulation in the cavity between the two valve cores, resulting in significant economic losses.
Method used
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Embodiment Construction
[0023] refer to image 3 , the high-temperature and high-pressure slagging ball valve of the combined material of the present invention comprises a high-temperature wear-resistant O-type ball valve 3, a flange sealing gasket 4, a high-temperature wear-resistant V-type ball valve 5, and stud bolts and nuts 6. The high-temperature wear-resistant O-type ball valve 3 The high-temperature wear-resistant V-shaped ball valve 5 is connected to form an integrated control valve through stud bolts and nuts 6 to form a combined high-temperature and high-pressure slag discharge ball valve. The high-temperature wear-resistant O-shaped ball valve 3 and the high-temperature wear-resistant V-shaped ball valve 5 are still A flange sealing gasket 4 is provided to ensure the sealing of the combination valve. The high temperature and wear-resistant O-shaped ball valve 3 has a single seat structure, the valve seat is set on the medium inlet side, and the outlet side valve cavity is designed as a circ...
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The invention discloses a high-temperature and high-pressure composite material slagging ball valve assembly which comprises a high-temperature wear-resisting O-shaped ball valve, a flange sealing gasket, a high-temperature wear-resisting V-shaped ball valve and a stud nut, wherein the high-temperature wear-resisting O-shaped ball valve and the high-temperature wear-resisting V-shaped ball valve are connected through the stud nut to form a combination valve, and the flange sealing gasket is further arranged between the high-temperature wear-resisting O-shaped ball valve and the high-temperature wear-resisting V-shaped ball valve; the high-temperature wear-resisting O-shaped ball valve is of a single-valve-seat structure, the valve body of the high-temperature wear-resisting O-shaped ball valve is of a half-splitting type central symmetry structure, the high-temperature wear-resisting O-shaped ball valve is mounted on the medium outlet side to serve as a sealing valve, and the high-temperature wear-resisting V-shaped ball valve is of a one-way sealing structure and is mounted on the medium inlet side to serve as a separation valve. The high-temperature and high-pressure composite material slagging ball valve assembly has the advantages of being good in wear resistance, good in sealing performance, long in service life and resistant to high temperature and high pressure.
Description
【Technical field】 [0001] The invention relates to the technical field of high-temperature and high-pressure slag discharge ball valves for combined materials, and is especially suitable for controlling valves for high-temperature solid particles or powdery media such as coal slag and coal powder in industries such as coal chemical industry. 【Background technique】 [0002] my country is vigorously developing the coal chemical industry. The ash fusion fluidized bed pulverized coal gasification technology is an advanced coal gasification patent technology independently developed by my country. In this device, the gasifier is the key equipment, and the slag discharge, The working condition of the ash discharge system is very bad. The system not only has high temperature (up to 1000°C for a short time), high pressure difference, and the medium is solid particles or powder, the performance requirements for the valve are very high, and the valve is required to be wear-resistant, cor...
Claims
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IPC IPC(8): F16K5/06F16K5/20F16K49/00F16K41/02
CPCF16K5/0605F16K5/0657F16K5/0694F16K27/067F16K49/00
Inventor 李伟董庭鸿李俊王加明粟飞
Owner ZHEJIANG ZHONGDE AUTOMATIC CONTROL VALVE