Environmental recovery device capable of on-line waste water discharge suitable for natural gas transmission station

Abstract

The invention relates to an environmental protection recovery device capable of on-line waste water discharge suitable for a natural gas transmission station. The environmental protection recovery device is characterized in that, the device comprises a waste water discharge pool with a roof plate on the top part and waste water discharge pipelines, the waste water discharge pipelines are communicated with the waste water discharge pool, waste water is discharged into the waste water discharge pool, an anti-seep device is arranged inside the waste water discharge pool, an anti-washing and anti-static device is arranged on the bottom of the waste water discharge pool, a ventilation device is arranged on the top part of the waste water discharge pool, and a water level detection device and a waste water recovery loading device are also arranged inside the waste water discharge pool. The environmental protection recovery device has the advantages that the device is not subjected to the restrictions of waste water discharge pressure, dirt amount, and dirt, and is safe and environmentally friendly; the waste water does not flow back to a main pipe, natural gas can be discharged into the atmosphere in time, the security risk is eliminated, impact on the bottom of the pool by the dirt is buffered, and agglomeration of static electricity is avoided.

Description

technical field [0001] The invention relates to a sewage discharge device, in particular to an environmental protection recovery device suitable for online sewage discharge in natural gas transmission stations. Background technique [0002] Natural gas contains a variety of impurities, such as acid gases such as carbon dioxide and hydrogen sulfide, liquids such as heavy hydrocarbons and water, and solids such as sediment and iron filings. The presence of acidic substances will accelerate corrosion of pipelines, and the presence of water will easily form hydrates and cause damage to equipment. Blockage and solid impurities will cause damage to pipeline equipment and instruments, seriously affecting the safety of natural gas pipelines and the gas experience of natural gas end users. Therefore, the natural gas station will be equipped with cyclone separators, filter separators and other equipment at the design site to continuously filter and separate The impurities in the natur...

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Problems solved by technology

[0005] 2. The volume of the sewage tank is only about 10 cubic meters, which has great restrictions on the pipeline sewage with high water content and large dust content. Especially when the pipeline is pigging, the ball collection station should specially make a temporary sewage pool , increasing the workload, and at the same time, the pressure on environmental protection is relatively high

[0006] 3. The design and manufacture of the blowdown tank are complicated, and the economic cost is high. The sulfide in the sewage will cause corrosion on the inner wall of the blowdown tank, and it is not easy to clearly grasp and maintain the internal operation of the blowdown tank

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