Thermal energy dynamic system of oil field exhaust gas based on cyclic condensation of working medium

Abstract

The invention discloses a thermal energy dynamic system of oil field exhaust gas based on cyclic condensation of working medium comprising a gasification device, a turbine, a condensation device and a one-way hydraulic pump which are successively cycled and communicated through a circulating pipeline; circulating work medium is contained in the circulating pipeline; a thermal-arrest device which is installed outside the gasification device is communicated with an oil field exhaust gas burner comprising an exhaust gas inlet, an oil field exhaust gas induced draught fan, an exhaust gas combustion chamber, a continuous fire guider and a hot gas discharge pipe; the gasification device comprises a gasification chamber and a preheating chamber; an exhaust port of the turbine is provided with a pre-condensing chamber which is in touch with the preheating chamber in parallel. The thermal energy dynamic system of oil field exhaust gas based on cyclic condensation of working medium can accelerate the condensation, improve the efficiency of the turbine, reduce the heat expelled outside, and thereby enhance the heat energy conversion efficiency.

Description

technical field [0001] The invention belongs to the field of energy utilization equipment, in particular to an oil field waste gas heat energy power system based on working medium circulation condensation. Background technique [0002] Energy is an important material basis for the survival and development of human society. Throughout the history of the development of human society, every major progress of human civilization is accompanied by the improvement and replacement of energy. The development and utilization of energy has greatly promoted the development of the world economy and human society. [0003] However, with the continuous development and consumption of energy, non-renewable energy sources such as petroleum, coal mines, and natural gas are gradually reduced, and energy conservation and recycling are gradually being valued. The basic content of my country's current energy strategy is: adhere to the priority of conservation, based on domestic, diversified deve...

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Problems solved by technology

[0007] However, the common problems of existing thermal power generation equipment are: a. The temperature at the exhaust port of the turbine is relatively high, resulting in high pressure at the exhaust port, and the work conversion efficiency of the turbine is low; b. The heat displacement of the condensing device is relatively large , the waste of heat energy is large, the condensation speed through natural condensation is slow, and the active condensation method (fan air cooling or liquid pump water cooling) requires additional power consumption; c. The temperature requirements for high-temperature heat sources are high, generally above 200 ° C, and The thermal energy conversion efficiency is low, and the thermal energy conversion efficiency is generally 15% to 35%; d. Gasification heat absorption is slow, and the output power of the thermal energy machine is relatively small; e. The heat collection effect of the heat collection device is not good, and the external waste heat absorption rate is small , f. The gasification temperature of the working fluid is unstable, the condensation effect of the working fluid is not good, and the working fluid is easy to deteriorate or appear impurities

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