Devices for dry gas sealing of compressors

A technology of dry gas sealing and compressor, which is applied in the sealing device of piston pump, liquid tightness measurement using liquid/vacuum degree, mechanical equipment, etc. Problems such as the service life of the pressure pump, to achieve the effect of saving external sealing gas, improving the service life and reducing the running time

Active Publication Date: 2022-06-28
西门子能源工业透平机械(葫芦岛)有限公司
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AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved by the present invention is that the booster pump is always started when the compressor is shut down after running or when the compressor trips, and the booster pump can only be turned off manually, resulting in excessive running time of the booster pump. Long, can not be closed in time, and reduce the service life of the booster pump

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  • Devices for dry gas sealing of compressors
  • Devices for dry gas sealing of compressors

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Embodiment Construction

[0056] In order to have a clearer understanding of the technical features, objects and effects of the present invention, the specific embodiments of the present invention will now be described with reference to the accompanying drawings.

[0057] In the figures, the actual line connections are marked with solid lines and the connections of the signal lines are marked with dashed lines.

[0058] figure 1 A device 1 for dry gas sealing of a compressor according to the invention is shown. The device 1 has: a detection mechanism 6, the detection mechanism detects the gas pressure inside the compression cylinder of the compressor 10, and obtains a first pressure value and a first pressure value signal indicating the first pressure value; the booster pump 3, When the booster pump is turned on, a part of the gas in the compression cylinder is delivered to the booster pump, and the booster pump pressurizes the pressure of the part of the gas to a second pressure value through space c...

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Abstract

The invention provides a dry gas sealing device for a compressor. The device has a detection mechanism for detecting the pressure value of the gas inside the compression cylinder of the compressor; it receives a part of the gas inside the compression cylinder and pressurizes it, and increases the pressure. The pressurized gas is used to seal the leaking part of the compressor; the booster pump that supplies the leaking part with external sealing gas to seal the leaking part; the external sealing gas supply mechanism that can be manipulated to turn on and off the leaking part and the external sealing gas The first valve connected to the supply mechanism; the controller communicated with the detection mechanism, the controller receives the gas pressure value detected by the detection mechanism, and the controller communicates with the booster pump and the first valve to control the valve according to the signal of the detection mechanism The booster pump and / or the first valve are opened or closed.

Description

technical field [0001] The present invention relates to a device for dry gas sealing of compressors. Background technique [0002] The dry gas seal of the compressor is used to seal the leakage portion formed between the rotor shaft and the compression cylinder which protrudes outward from the inside of the compression cylinder of the compressor. When the compressor stops after operation or when the compressor trips, the pressure of the compressed gas inside the compression cylinder of the compressor is very high. Since most of the compressed gas inside the compression cylinder contains dangerous media, it is necessary to seal between the compression cylinder and the external environment in order to prevent the dangerous media from leaking into the external environment and causing danger to workers. Typically, the leak site is sealed by supplying an external sealing gas to the leak site in the compression cylinder. However, since the pressure of the delivered outer sealing...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F04C27/00F04C27/02F04C28/28G01M3/26
CPCF04C27/009F04C27/02F04C28/28G01M3/26
Inventor 赵金蕊王明胜
Owner 西门子能源工业透平机械(葫芦岛)有限公司
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