Recovery device for oil gas discharged when light oil products are loaded into trucks or ships

Abstract

The invention relates to a recovery device for oil gas discharged when light oil products are loaded into trucks or ships. The recovery device for oil gas discharged when light oil products are loaded into trucks or ships comprises an oil gas recovery part and an oil gas collection part. The oil gas collection part comprises an oil gas delivery pipeline, an oil gas collection pipeline, a delivery pump and a control instrument. The outlet of the oil gas delivery pipeline is communicated with the inlet of the delivery pump, and the outlet of the delivery pump is communicated with the oil gas recovery part. One end of the oil gas collection pipeline is communicated with the oil gas delivery pipeline, and the other end of the oil gas collection pipeline is communicated with an oil gas escape opening in the process when light oil products are loaded into trucks or ships. The oil gas collection pipeline is provided with a flowmeter and a flow regulating valve, the flow regulating valve is controlled by the control instrument, and the volume flow rate of the oil gas is controlled to be one times to 1.5 times that of the oil products entering the corresponding trucks or ships in the truck or ship loading process. The recovery device is easy and convenient to use, oil gas can be fully collected, and the recovery device is favorable for recovery of escape oil gas.

Description

technical field [0001] The invention relates to a recovery device for oil gas discharged during the loading process of light oil products and liquid chemical products into vehicles (or ships), especially an oil gas collection device for the recovery device of oil gas discharged during the process of loading light oil products into vehicles (or ships). Background technique [0002] In the process of loading and unloading trucks (or ships) such as storage, transportation and sales of light oil products, a large amount of oil and gas escapes. According to statistics, the oil products lost by the escape of light oil products account for about 0.5% of light oil products every year. During the loading and unloading of crude oil every year in China, the total loading volume of light oil products reaches more than 100 million tons, and the loss of oil and gas escape during the loading process of oil and gas exceeds 500,000 tons. On the one hand, this leads to the waste of a large a...

AI Technical Summary

Problems solved by technology

However, in practical applications, it is found that airtight loading of vehicles (ships) is difficult to achieve. The resistance of the oil and gas recovery system is enough to make the escaped oil and gas discharge into the atmosphere from all corners that cannot be fully sealed, and cannot enter the oil and gas recovery system. The oil and gas recovery system unable to function

[0004] CN200510053912.6 discloses a liftable crane tube sealing cap. The crane tube sealing cap is made into a sealing device that can move up and down by a telescopic cylinder. Due to the difference in flatness and flatness, the alignment between the crane tube and the slot car port is inaccurate, the sealing device has problems of poor sealing and oil and gas leakage, and at the same time, a large external force is required to realize the sealed recovery of oil and gas during the loading and unloading process

CN03149833.7 discloses a movable sealing cap, which adopts a sealing body that can move 360 ​​degrees radially around the vertical pipe of the crane to realize sealing. Yan, oil and gas leakage

The operation of the above-mentioned sealed loading method is relatively complicated, and the loading generally needs to be fast and efficient, and the sealed loading affects work efficiency in actual operation

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