Organic Rankine cycle flue gas waste heat recovery system
A Rankine cycle, flue gas waste heat technology, applied in mechanical equipment, steam engine installations, machines/engines, etc., can solve the problems of system operation, unstable system operation, overheating of the heat source, etc., to achieve stable system operation and waste heat. Utilize efficiency and high quality, control efficient effects
Active Publication Date: 2017-03-15
CHONGQING UNIV
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Problems solved by technology
However, during the operation of the system, there will be certain interference and fluctuations, which will lead to instability of the system operation, such as sudden increase in the work of the evaporator, overheating of the heat source end, insufficient circulating water at the condensation end, etc., resulting in deviations in the power generation of the system , in severe cases, it will lead to equipment shutdown, which not only affects the operation of the system, but also reduces the life of the system equipment, which is a huge challenge to the system economy
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[0030] The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be understood that the preferred embodiments are only for illustrating the present invention, not for limiting the protection scope of the present invention.
[0031] As shown in the figure, the organic Rankine cycle flue gas waste heat recovery system of this embodiment includes an organic Rankine system 1 and a flue gas treatment system 2, and is characterized in that it also includes a shunt protection system 3, an over-temperature protection system 4, and a control system 5. The shunt protection system 3 and the flue gas treatment system 2 are connected in parallel with the organic Rankine system 1 through the three-way valve I6. At the same time, the shunt protection system 3, the flue gas treatment system 2, and the organic Rankine system 1 are all connected to the flue gas channel 7 The flow divider protection system 3 and the f...
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The invention discloses an organic Rankine cycle flue gas waste heat recovery system, and belongs to the technical field of waste heat utilization. The organic Rankine cycle flue gas waste heat recovery system comprises an organic Rankine system and a flue gas processing system, and further comprises a flow distribution protection system and a control system. The flow distribution protection system and the flue gas processing system are connected with the organic Rankine system in parallel through a three-way valve I and communicate with a flue gas channel. The flow distribution protection system is arranged and used as an auxiliary system for conducting flow distribution on the amount of flue gas entering the system, and therefore the amount of the flue gas and heat which pass through the main system, namely, the organic Rankine system can be kept stable all the time, the system can be in the stable running state all the time, and the problems that because all parts of the system are in the overheated or high-load running state for a long time, the service life of the parts is influenced and cost is increased are solved; and meanwhile, control is conducted on the whole waste heat recovery process through the control system, control over the system can be more efficient, accurate and intelligent, and the waste heat utilization efficiency and quality are higher.
Description
Technical field [0001] The invention belongs to the technical field of waste heat utilization, and specifically relates to an organic Rankine cycle flue gas waste heat recovery system with protection function and stable operation. Background technique [0002] There is a large amount of medium and low temperature waste heat in petroleum, metallurgy, steel and other chemical industries. If a large amount of medium and low temperature flue gas and wastewater are discharged into the environment directly through boilers or condensing equipment, this will release a lot of heat, but Not only will it cause huge energy waste, but it will also cause serious environmental thermal pollution. Recycling these waste heat resources can improve the utilization rate of primary energy on the one hand, and on the other hand, it can also reduce the environmental heat pollution problem in the chemical industry. In addition, there are abundant other forms of low-grade heat sources in my country, such...
Claims
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IPC IPC(8): F01K27/00F01K25/10F01K13/02F01K21/04
CPCF01K13/02F01K21/04F01K25/10F01K27/00
Inventor 刘朝王述昆张诚徐肖肖李期斌
Owner CHONGQING UNIV