Novel energy-saving supercharged submerged combustion heat exchange system

Abstract

The invention discloses a novel energy-saving supercharged immersion combustion heat exchange system, which belongs to the field of petrochemical industry and comprises a combustion device, an inverted U-shaped immersion device, a semi-closed evaporation device, an electric pressure control device, a waste heat power generation device and a heat exchange device. The combustion device is arranged in the evaporation device in an inverted funnel shape; the combustion device consists of a gas mixing chamber, a gas combustion chamber and an inverted U-shaped immersion pipe; the inverted-U-shaped immersion pipe with a plurality of bubbling holes in the left pipe wall is laterally arranged above the exhaust port, and the circulating baffles are arranged on the two sides of the immersion pipe and immersed in liquid in the evaporation chamber; the fuel gas conveying pipe and the air conveying pipe are covered by evaporated liquor, and the air conveying pipe is provided with an air compressor, so that the effects of increasing temperature and increasing pressure are achieved; and when the pressure in the evaporation chamber reaches a certain value, the electric pressure control device is automatically opened, and the high-temperature and high-pressure mixed flue gas enters the waste heat power generation device and the heat exchange device for secondary energy utilization. Through secondary utilization of a heat source, the energy utilization rate of the system is increased by more than 60%.

Description

technical field [0001] The invention relates to the technical field of petrochemical industry, in particular to a novel energy-saving pressurized submerged combustion heat exchange system applied to the fields of oilfield sewage treatment, crude oil gathering and transportation, heavy oil thermal recovery and the like. Background technique [0002] With the development of society and economy, a large amount of energy consumption, and the increase of pollutant emissions, many natural ecological and environmental problems have been caused. A large amount of oilfield sewage will be produced in the process of oil exploitation. Oilfield sewage is a multi-component system with complex components, high water temperature, high crude oil content and high bacterial content. Due to the high water temperature and large flow of oilfield sewage, it actually carries a large amount of oil. available thermal energy. Immersion combustion, also known as submerged combustion, refers to a new h...

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Problems solved by technology

It effectively improves the problems of the atmospheric pressure submerged combustion evaporator, such as low boiling point of liquid in the evaporation chamber, low temperature and pressure of flue gas, difficulty in secondary utilization of heat, direct discharge of pollutants, insufficient energy utilization, etc., and expands the technology of submerged combustion. field of application

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