Method for Online Replacement of Nozzles for Water Injection Sealing Body and Compressor Water Injection System
A technology of water injection system and compressor, which is applied in the field of compressors, and can solve problems such as regular replacement of nozzles, production shutdown, and compressor shutdown.
Active Publication Date: 2019-09-13
SHENYANG TURBO MASCH CORP
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Problems solved by technology
However, the nozzles used for water injection are sometimes clogged, and the nozzles need to be replaced regularly. The replacement of the nozzles requires the compressor to stop or even stop production, which brings inconvenience and economic losses. It is difficult to replace the nozzles online on existing domestic and imported equipment. Function
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[0034] Referring to the figure, the present invention provides a compressor water injection system that can replace nozzles online, including a water supply system 1, a nozzle 2 containing a nozzle, a water injection sealing body 3 arranged in a cavity, a ball valve 4, a nitrogen filling device 5 and Exhaust gas collection device 6. In this embodiment, the nitrogen filling device 5 is composed of a nitrogen source, a switch valve and a connecting hose, and the waste gas collection device is composed of an air pump, a switch valve, a hose and a storage tank. The water supply system 1 is connected to the nozzle 2. The nozzle 2 passes through the water injection sealing body 3 and the ball valve 4 to connect to the interior of the compressor. The nozzle 2 includes a nozzle body 20 and a nozzle 21. The nozzle 21 is arranged on the top of the nozzle body 20. In this embodiment The middle nozzle body 20 is threadedly connected with the nozzle 21 , and in other embodiments, the nozzl...
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The invention provides a water injection sealing body, which comprises a dynamic seal composed of a sealing ring, a static seal containing a sealing cavity, and a compression device for compressing or loosening the static seal, which are arranged adjacently in sequence. 1. The static sealing and pressing device is arranged in a cavity, and the cavity is provided with two air cavity interfaces, the first air cavity interface 18 communicates with the static seal, and the second air cavity interface 19 communicates with the The above-mentioned pressing device is connected. The invention also provides a method for online replacement of nozzles in the compressor water injection system. When the nozzle is replaced online, the invention does not leak the compressed gas in the compressor, nor pollute the compressed gas in the compressor, and achieves a good sealing effect.
Description
technical field [0001] The invention relates to the field of compressors, in particular to a water injection sealing body and a method for online replacement of nozzles in a compressor water injection system. Background technique [0002] At present, centrifugal compressors need a water injection system due to process requirements. Water injection can reduce the temperature of the compressed gas, inhibit the polymerization reaction, avoid coking, improve the operating efficiency and safety of the compressor, and reduce power consumption. [0003] The product gas contains olefins and high-carbon gases. When it is compressed, the temperature will rise and it will coke. The coke will stick to the impeller, diffuser and other compressor flow channels and components, which seriously affects the compression. The aerodynamic performance of the machine. The uneven coverage of the coke or the sudden shedding of parts will affect the balance of the rotor of the compressor, causing th...
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IPC IPC(8): F04D29/58F04D29/08F04D29/62
Inventor 韩帅蒋占丽陈永锋苏中帅王俊明杨明金旭李学青裴林刘雷赵洪浩周云超孙超郑光帅刘凯邵学博孙昊强文铭汉谷升亢天明
Owner SHENYANG TURBO MASCH CORP