Tank opening overflowing gas collecting and processing device

Abstract

The invention discloses a tank opening overflowing gas collecting and processing device which comprises a gas collecting cover arranged above an oil storage tank opening, a reaction chamber with the top open and the inside provided with a gas distribution net and a vacuum pump connected with a top opening of the gas collecting cover through an external gas pipe. A gas outlet pipe of the vacuum pump is connected with the gas distribution net, a liquid inlet pipe is communicated with the reaction chamber, and the connection point of the liquid inlet pipe and the reaction chamber wall is lower than the position of the gas distribution net. By means of the device, tank opening overflowing gas can be collected and processed together, controllable processing and discharging of toxic harmful gas are achieved, a safety production requirement is met, and a safety environment-friendly technical requirement is met.

Description

technical field [0001] The invention relates to a gas collecting device, in particular to a device for collecting and treating gas overflowing from a tank mouth. Background technique [0002] In the process of crude oil gathering, transportation, storage and transportation, oilfield associated gas and water vapor directly enter the crude oil storage tank along with the gathering and transportation pipeline network, and are separated in the storage tank and overflow from the tank mouth, and the overflowing mixed gas contains natural gas, hydrogen sulfide, A large amount of harmful gases such as carbon monoxide, carbon dioxide, and sulfur dioxide. At the same time, a large amount of high-temperature water vapor in the spilled gas mostly carries a large amount of oil droplets and solid particles in crude oil. The wanton spillage of these gases will cause serious pollution to the environment and bring serious safety hazards. [0003] In order to solve the hidden dangers caused b...

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Problems solved by technology

[0002] In the process of crude oil gathering, transportation, storage and transportation, oilfield associated gas and water vapor directly enter the crude oil storage tank along with the gathering and transportation pipeline network, and are separated in the storage tank and overflow from the tank mouth, and the overflowing mixed gas contains natural gas, hydrogen sulfide, A large amount of harmful gases such as carbon monoxide, carbon dioxide, and sulfur dioxide. At the same time, a large amount of high-temperature water vapor in the spilled gas mostly carries a large amount of oil droplets and solid particles in crude oil. The wanton spillage of these gases will cause serious pollution to the environment and bring serious safety hazards

[0003] In order to solve the hidden dangers caused by the overflow of the tank mouth, there is currently no effective method other than airtight production, and the limitation of airtight production is that it can only achieve partial airtightness in the crude oil gathering and transportation link, and finally remains in the crude oil processing and refining process. Open discharge, the so-called airtightness is just to reduce the discharge point, so that the original scattered discharge has become a centralized discharge, and there are two fatal shortcomings in the closed centralized discharge. First, the gas that should be discharged must enter the gathering and transportation pipeline network , putting forward higher requirements for the design of the pipeline network; secondly, all toxic and harmful gases are concentrated in the terminal discharge, which brings more serious safety hazards

[0004] In order to ensure safe production, it is necessary to develop a tank mouth overflow gas collection and treatment device, so that the gas generated during the crude oil production process can be discharged in time after treatment, preventing the random overflow of harmful gas gases and solid and liquid particles, polluting the environment, affecting Safe Production

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