CN-224228737-U - Waste heat power generation system of centrifugal air compressor

Abstract

The utility model relates to the technical field of waste heat utilization of centrifugal air compressors, in particular to a tar residue treatment system. The centrifugal air compressor is provided with an N-level compressor, N is more than or equal to 2, the N-level compressor is connected with N-1 high-efficiency heat exchangers in series through pipelines, an outlet of the high-efficiency heat exchanger is connected with an inlet pipeline of an organic working medium-hot water heat exchanger, an outlet of the organic working medium-hot water heat exchanger is connected with an inlet pipeline of the high-efficiency heat exchanger to form a circulating water system, a water supplementing pipeline is connected with the circulating water system, an outlet of the organic working medium-hot water heat exchanger is connected with an inlet pipeline of a working medium expander, an outlet of the working medium expander is connected with an inlet pipeline of a working medium condenser, an outlet of the working medium condenser is connected with an inlet pipeline of the organic working medium-hot water heat exchanger to form an organic working medium circulating system, and the working medium expander is connected with a generator pipeline. The waste heat of the centrifugal air compressor can be effectively utilized, and the current situation of insufficient power supply in factories can be relieved.

Inventors

• LV XIN
• ZHEN NI
• LI HUA
• WANG MINGDENG

Assignees

• 中冶焦耐(大连)工程技术有限公司

Dates

Publication Date

20260512

Application Date

20250530

Claims (6)

1. 1. A centrifugal air compressor waste heat power generation system is characterized in that: The device comprises a centrifugal air compressor, wherein the centrifugal air compressor is provided with N-level compressors, N is more than or equal to 2, and the N-level compressors are connected with N-1 high-efficiency heat exchangers in series through pipelines; The outlet of the high-efficiency heat exchanger is connected with the inlet pipeline of the organic working medium-hot water heat exchanger, the outlet of the organic working medium-hot water heat exchanger is connected with the inlet pipeline of the high-efficiency heat exchanger to form a circulating water system, and the water supplementing pipeline is connected with the circulating water system; An outlet of the organic working medium-hot water heat exchanger is connected with an inlet pipeline of the working medium expander, an outlet of the working medium expander is connected with an inlet pipeline of the working medium condenser, and an outlet of the working medium condenser is connected with an inlet pipeline of the organic working medium-hot water heat exchanger to form an organic working medium circulation system; the working medium expander is connected with the generator pipeline.
2. 2. The centrifugal air compressor waste heat power generation system according to claim 1, wherein: The N-level compressor is a three-level compressor, which is a first-level compressor, a second-level compressor and a three-level compressor respectively, the N-1 high-efficiency heat exchangers are 2 high-efficiency heat exchangers, which are a first high-efficiency heat exchanger and a second high-efficiency heat exchanger respectively, the first-level compressor, the first high-efficiency heat exchanger, the second-level compressor, the second high-efficiency heat exchanger and the three-level compressor are connected through pipelines in turn, and an outlet of the three-level compressor is connected with a waste heat regeneration dryer through a pipeline.
3. 3. The centrifugal air compressor waste heat power generation system according to claim 1, wherein: And a working medium pump is arranged on a pipeline of the outlet of the working medium condenser connected with the inlet of the organic working medium-hot water heat exchanger.
4. 4. The centrifugal air compressor waste heat power generation system according to claim 1, wherein: and a water supplementing pump is arranged on the water supplementing pipeline.
5. 5. The centrifugal air compressor waste heat power generation system according to claim 1, wherein: and a circulating pump and a pressure stabilizing tank are arranged on a pipeline of the organic working medium-hot water heat exchanger, wherein the outlet of the pipeline is connected with the inlet of the efficient heat exchanger.
6. 6. The centrifugal air compressor waste heat power generation system according to claim 1, wherein: The generator is connected to a power grid through a grid-connected cabinet to complete electric connection and grid-connected control.

Description

Waste heat power generation system of centrifugal air compressor Technical Field The utility model relates to the technical field of waste heat utilization of centrifugal air compressors, in particular to a waste heat power generation system of a centrifugal air compressor. Background The centrifugal air compressor is mechanical equipment for compressing gas by utilizing impellers rotating at high speed, and is widely applied to the fields of industrial manufacture, energy sources, chemical industry and the like. The centrifugal air compressor is a 'power heart' in a coking plant area, and pumps compressed air through impeller high-speed rotation, so as to provide a 'life air source' for a coke oven system, dust removing equipment and pneumatic valves and drive the production and efficient operation of the whole plant. However, a great amount of compression heat is generated in the operation process of the centrifugal air compressor, and the centrifugal air compressor for coking production is usually provided with three stages of compressors, so that a great amount of circulating water is needed to cool the compressors three ways, and most of heat taken away by the circulating water is released by a cooling tower or is released to the atmosphere by an evaporative cooling system. Whether it is a cooling tower or an evaporative cooling system, the heat released by the cooler is wasted and the heat is not fully recovered. In addition, at present, a plurality of factories face the current situation that the power consumption of production equipment is large, and high-power and high-load equipment is more and more, once the power consumption load is unstable, sudden power failure caused by current overload can bring immeasurable results to the factories. Disclosure of utility model In order to overcome the defects in the prior art, the utility model provides a waste heat power generation system of a centrifugal air compressor, which can effectively utilize waste heat of the centrifugal air compressor and relieve the current situation of insufficient power supply in factories. In order to achieve the above purpose, the utility model is realized by adopting the following technical scheme: A waste heat power generation system of a centrifugal air compressor comprises a centrifugal air compressor, wherein the centrifugal air compressor is provided with N-level compressors, N is more than or equal to 2, the N-level compressors are connected with N-1 efficient heat exchangers in series through pipelines, an outlet of each efficient heat exchanger is connected with an inlet pipeline of an organic working medium-hot water heat exchanger, an outlet of each organic working medium-hot water heat exchanger is connected with an inlet pipeline of each efficient heat exchanger to form a circulating water system, a water supplementing pipeline is connected with the circulating water system, an outlet of each organic working medium-hot water heat exchanger is connected with an inlet pipeline of a working medium expander, an outlet of the working medium expander is connected with an inlet pipeline of a working medium condenser, an outlet of the working medium condenser is connected with an inlet pipeline of each organic working medium-hot water heat exchanger to form an organic working medium circulating system, and the working medium expander is connected with a generator pipeline. Further, the N-level compressor is a three-level compressor, which is a first-level compressor, a second-level compressor and a three-level compressor respectively, the N-1 high-efficiency heat exchangers are 2 high-efficiency heat exchangers, which are a first high-efficiency heat exchanger and a second high-efficiency heat exchanger respectively, the first-level compressor, the first high-efficiency heat exchanger, the second-level compressor, the second high-efficiency heat exchanger and the three-level compressor are connected through pipelines in turn, and an outlet of the three-level compressor is connected with a waste heat regeneration dryer through a pipeline. Further, a working medium pump is arranged on a pipeline of the outlet of the working medium condenser connected with the inlet of the organic working medium-hot water heat exchanger. Further, a water supplementing pump is arranged on the water supplementing pipeline. Further, a circulating pump and a pressure stabilizing tank are arranged on a pipeline connecting the outlet of the organic working medium-hot water heat exchanger with the inlet of the efficient heat exchanger. Further, the generator is connected to a power grid through a grid-connected cabinet to complete electric connection and grid-connected control. Compared with the prior art, the utility model has the beneficial effects that: 1. The N-stage compressor is connected with N-1 high-efficiency heat exchangers in series through pipelines, an outlet of the high-efficiency heat exchanger is connected with an inlet pipeline