CN210829422U - Turbine driving gas compression system - Google Patents
Turbine driving gas compression system Download PDFInfo
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- CN210829422U CN210829422U CN201921944728.4U CN201921944728U CN210829422U CN 210829422 U CN210829422 U CN 210829422U CN 201921944728 U CN201921944728 U CN 201921944728U CN 210829422 U CN210829422 U CN 210829422U
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Abstract
The utility model discloses a turbine drive gas compression system, including carbon dioxide compressor, low temperature regenerator, high temperature regenerator, heater, turbine, air heater, precooler, intercooler and air compressor machine. The utility model discloses can retrieve the heat that the air heaied up after the air compressor machine pressure boost, by supercritical carbon dioxide cyclic utilization, reduced the thermal power of heater to make the heat consumption of air compression process descend, saved manufacturing cost, in supercritical carbon dioxide circulation, if do not account for the cold heat between the compressed air who retrieves, then the thermal efficiency of circulation can reach 50%, and the thermal efficiency of conventional steam turbine unit is about 35%, but the utility model discloses an air compressor machine's consumption is higher, has increased about 10% than conventional compression process, consequently, total air compression process's heat consumption descends about 20%.
Description
Technical Field
The utility model relates to a gas compression technical field, in particular to turbine drive gas compression system.
Background
In the chemical industry, various air compressors and process gas compressors are used, which are usually driven by a steam turbine or a gas turbine. Because the gas compression energy consumption is high and has important influence on the production cost, the energy-saving and consumption-reducing task is valued by chemical enterprises for a long time. With the innovative development of turbine technology, a novel high-efficiency energy-saving driving scheme is claimed.
In recent years, the power cycle development taking supercritical carbon dioxide as a working medium is fast, and a supercritical carbon dioxide turbine becomes a new generation of power device. The critical point of carbon dioxide is 31 ℃/7.4MPa, and the state when the temperature and pressure exceed the critical point is a supercritical state. The supercritical carbon dioxide power cycle has good application prospect due to stable chemical property, high density, no toxicity, low cost, simple cycle system, compact structure, quick start and stop and high efficiency.
According to the gas compression process in a chemical plant, a novel turbine driving gas compression system can be formed by combining with supercritical carbon dioxide circulation, and the energy consumption is expected to be further reduced.
SUMMERY OF THE UTILITY MODEL
For solving the problem that prior art exists, the utility model aims at providing a reasonable in design, simple structure, can retrieve the heat that the air heaied up after the air compressor machine pressure boost, by supercritical carbon dioxide cyclic utilization, reduced the thermal power of heater to make the heat consumption of air compression process descend, saved manufacturing cost's turbine drive gas compression system.
For solving the above technical problem, the utility model discloses a following technical scheme realizes:
a turbine driven gas compression system comprising
The carbon dioxide compressor is used for compressing the carbon dioxide working medium;
the low-temperature regenerator is used for heating the carbon dioxide working medium pressurized by the carbon dioxide compressor, and a low-temperature side inlet of the low-temperature regenerator is communicated with an outlet of the carbon dioxide compressor;
the high-temperature regenerator is used for heating the carbon dioxide working medium heated by the low-temperature regenerator, a low-temperature side inlet of the high-temperature regenerator is communicated with a low-temperature side outlet of the low-temperature regenerator, and a high-temperature side outlet of the high-temperature regenerator is communicated with a high-temperature side inlet of the low-temperature regenerator;
the heater is used for further heating the carbon dioxide working medium heated by the high-temperature heat regenerator, and an inlet of the heater is communicated with a low-temperature side outlet of the high-temperature heat regenerator;
the inlet of the turbine is communicated with the outlet of the heater, and the outlet of the turbine is communicated with the high-temperature side inlet of the high-temperature regenerator;
the air preheater is used for preheating air, a carbon dioxide side inlet of the air preheater is communicated with a high-temperature side outlet of the low-temperature heat regenerator, and an air inlet of the air preheater is communicated with the outside atmosphere;
the precooler is used for further cooling the carbon dioxide working medium cooled by the air preheater, the inlet of the precooler is communicated with the carbon dioxide side outlet of the air preheater, and the outlet of the precooler is communicated with the inlet of the carbon dioxide compressor;
the carbon dioxide side inlet of the intercooler is communicated with the outlet of the carbon dioxide compressor, and the carbon dioxide side outlet of the intercooler is communicated with the low-temperature side inlet of the high-temperature regenerator;
the air compressor is used for boosting air through pushing of a turbine, a first section inlet of the air compressor is communicated with an air outlet of the air preheater, a first section outlet of the air compressor is communicated with a first section air side inlet of the intercooler, a first section air side outlet of the intercooler is communicated with a second section inlet of the air compressor, a second section outlet of the air compressor is communicated with a second section air side inlet of the intercooler, a second section air side outlet of the intercooler is communicated with a third section inlet of the air compressor, a third section outlet of the air compressor is communicated with a third section air side inlet of the intercooler, a third section air side outlet of the intercooler is communicated with a fourth section inlet of the air compressor, and a fourth section outlet of the air compressor is communicated with chemical equipment arranged at the downstream.
In a preferred embodiment of the present invention, the carbon dioxide compressor, the turbine and the air compressor are arranged coaxially.
Compared with the prior art, the utility model discloses can retrieve the heat that the air heaied up after the air compressor machine pressure boost, by supercritical carbon dioxide cyclic utilization, reduced the thermal power of heater to make the heat consumption of air compression process descend, saved manufacturing cost, in supercritical carbon dioxide circulation, if do not count the cold heat between the compressed air who retrieves, then the thermal efficiency of circulation can reach 50%, and the thermal efficiency of conventional steam turbine unit is about 35%, but the utility model discloses an air compressor machine's consumption is higher, has increased about 10% than conventional compression process, consequently, the heat consumption of total air compression process descends about 20%.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic diagram of the gas compression of the present invention.
Detailed Description
In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand and understand, the present invention is further explained by combining with the specific drawings.
Referring to fig. 1, a turbine driven gas compression system is shown, including a carbon dioxide compressor 100, a low temperature regenerator 200, a high temperature regenerator 300, a heater 400, a turbine 500, an air preheater 700, a precooler 600, an intercooler 900, and an air compressor 800.
The carbon dioxide compressor 100 is used for compressing carbon dioxide working medium, the low-temperature heat regenerator 200 is used for heating the carbon dioxide working medium pressurized by the carbon dioxide compressor 100, and a low-temperature side inlet of the low-temperature heat regenerator 200 is communicated with an outlet of the carbon dioxide compressor 100.
The high-temperature regenerator 300 is used for heating the carbon dioxide working medium heated by the low-temperature regenerator 200, a low-temperature side inlet of the high-temperature regenerator 300 is communicated with a low-temperature side outlet of the low-temperature regenerator 200, and a high-temperature side outlet of the high-temperature regenerator 300 is communicated with a high-temperature side inlet of the low-temperature regenerator 200.
The heater 400 is used for further heating the carbon dioxide working medium heated by the high-temperature regenerator 300, an inlet of the heater 400 is communicated with a low-temperature side outlet of the high-temperature regenerator 300, the turbine 500 is used for providing pushing power, an inlet of the turbine 500 is communicated with an outlet of the heater 400, and an outlet of the turbine 500 is communicated with a high-temperature side inlet of the high-temperature regenerator 300.
The air preheater 700 is used for preheating air, a carbon dioxide side inlet of the air preheater 700 is communicated with a high-temperature side outlet of the low-temperature heat regenerator 200, an air inlet of the air preheater 700 is communicated with the outside atmosphere, the precooler 600 is used for further cooling a carbon dioxide working medium cooled by the air preheater 700, an inlet of the precooler 600 is communicated with a carbon dioxide side outlet of the air preheater 700, and an outlet of the precooler 600 is communicated with an inlet of the carbon dioxide compressor 100.
The carbon dioxide side inlet of the intercooler 900 is communicated with the outlet of the carbon dioxide compressor 100, the carbon dioxide side outlet of the intercooler 900 is communicated with the low-temperature side inlet of the high-temperature heat regenerator 300, the air compressor 800 is used for boosting the air by pushing the turbine 500, and the first section inlet of the air compressor 500 is communicated with the air outlet of the air preheater 700.
The first section outlet of the air compressor 800 is communicated with the first section air side inlet of the intercooler 900, the first section air side outlet of the intercooler 900 is communicated with the second section inlet of the air compressor 800, the second section outlet of the air compressor 800 is communicated with the second section air side inlet of the intercooler 900, the second section air side outlet of the intercooler 900 is communicated with the third section inlet of the air compressor 800, the third section outlet of the air compressor 800 is communicated with the third section air side inlet of the intercooler 900, the third section air side outlet of the intercooler 900 is communicated with the fourth section inlet of the air compressor 800, the fourth section outlet of the air compressor 800 is communicated with chemical equipment arranged at the downstream, and in the embodiment, the carbon dioxide compressor 100, the turbine 500 and the air compressor 800 are coaxially arranged.
The utility model discloses a concrete operation as follows:
s1, boosting a carbon dioxide working medium to 18MPa through a carbon dioxide compressor 100, dividing the carbon dioxide working medium into two paths, enabling one path of the carbon dioxide working medium to enter a low-temperature heat regenerator 200 to absorb waste heat of the carbon dioxide working medium discharged by a turbine 500, and enabling the other path of the carbon dioxide working medium to enter an intercooler 900 to absorb heat of compressed air and cool the compressed air;
s2, combining the two heated carbon dioxide working media, and enabling the two heated carbon dioxide working media to enter a high-temperature heat regenerator 300 to absorb the waste heat of the carbon dioxide working media discharged by the turbine 500;
s3, the carbon dioxide working medium heated by the high-temperature heat regenerator 300 enters a heater 400 for further heating, the heating temperature reaches 520 ℃, and finally the carbon dioxide working medium enters a turbine 500 for expansion and work, and the turbine 500 pushes an air compressor 800 to work;
s4, the carbon dioxide working medium discharged by the turbine 500 releases heat through the high-temperature heat regenerator 300 and the low-temperature heat regenerator 200, releases heat to air through the air preheater 700, is cooled to normal temperature through the precooler 600, and finally returns to the carbon dioxide compressor 100;
s5, air preheated by the air preheater 700 enters a first section of an air compressor for pressurization, then enters a first section of an intercooler 900 for cooling, then enters a second section of the air compressor 800 for pressurization, then enters a second section of the intercooler 900 for cooling, then enters a third section of the air compressor 800 for pressurization, then enters a third section of the intercooler 900 for cooling, then enters a fourth section of the air compressor 800 for pressurization, the compression ratio of each section of pressurization is 2.5, the pressure reaching the process requirement is 3.5Mpa, and finally the air is sent to downstream chemical equipment.
To sum up the utility model discloses can retrieve the heat that the air heaied up after the air compressor machine pressure boost, by supercritical carbon dioxide cyclic utilization, reduced the thermal power of heater to make the heat consumption of air compression process descend, saved manufacturing cost, in supercritical carbon dioxide circulation, if do not count the heat of cold between the compressed air of retrieving, then the thermal efficiency of circulation can reach 50%, and the thermal efficiency of conventional steam turbine unit is about 35%, but the utility model discloses an air compressor machine's consumption is higher, has increased about 10% than conventional compression process, consequently, total air compression process's heat consumption descends about 20%.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (2)
1. A turbine driven gas compression system comprising
The carbon dioxide compressor is used for compressing the carbon dioxide working medium;
the low-temperature regenerator is used for heating the carbon dioxide working medium pressurized by the carbon dioxide compressor, and a low-temperature side inlet of the low-temperature regenerator is communicated with an outlet of the carbon dioxide compressor;
the high-temperature regenerator is used for heating the carbon dioxide working medium heated by the low-temperature regenerator, a low-temperature side inlet of the high-temperature regenerator is communicated with a low-temperature side outlet of the low-temperature regenerator, and a high-temperature side outlet of the high-temperature regenerator is communicated with a high-temperature side inlet of the low-temperature regenerator;
the heater is used for further heating the carbon dioxide working medium heated by the high-temperature heat regenerator, and an inlet of the heater is communicated with a low-temperature side outlet of the high-temperature heat regenerator;
the inlet of the turbine is communicated with the outlet of the heater, and the outlet of the turbine is communicated with the high-temperature side inlet of the high-temperature regenerator;
the air preheater is used for preheating air, a carbon dioxide side inlet of the air preheater is communicated with a high-temperature side outlet of the low-temperature heat regenerator, and an air inlet of the air preheater is communicated with the outside atmosphere;
the precooler is used for further cooling the carbon dioxide working medium cooled by the air preheater, the inlet of the precooler is communicated with the carbon dioxide side outlet of the air preheater, and the outlet of the precooler is communicated with the inlet of the carbon dioxide compressor;
the carbon dioxide side inlet of the intercooler is communicated with the outlet of the carbon dioxide compressor, and the carbon dioxide side outlet of the intercooler is communicated with the low-temperature side inlet of the high-temperature regenerator;
the air compressor is used for boosting air through pushing of a turbine, a first section inlet of the air compressor is communicated with an air outlet of the air preheater, a first section outlet of the air compressor is communicated with a first section air side inlet of the intercooler, a first section air side outlet of the intercooler is communicated with a second section inlet of the air compressor, a second section outlet of the air compressor is communicated with a second section air side inlet of the intercooler, a second section air side outlet of the intercooler is communicated with a third section inlet of the air compressor, a third section outlet of the air compressor is communicated with a third section air side inlet of the intercooler, a third section air side outlet of the intercooler is communicated with a fourth section inlet of the air compressor, and a fourth section outlet of the air compressor is communicated with chemical equipment arranged at the downstream.
2. A turbine drive gas compression system as set forth in claim 1 wherein: the carbon dioxide compressor, the turbine and the air compressor are coaxially arranged.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921944728.4U CN210829422U (en) | 2019-11-12 | 2019-11-12 | Turbine driving gas compression system |
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| CN201921944728.4U CN210829422U (en) | 2019-11-12 | 2019-11-12 | Turbine driving gas compression system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110671164A (en) * | 2019-11-12 | 2020-01-10 | 上海发电设备成套设计研究院有限责任公司 | Turbine driving gas compression system and working method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110671164A (en) * | 2019-11-12 | 2020-01-10 | 上海发电设备成套设计研究院有限责任公司 | Turbine driving gas compression system and working method thereof |
| CN110671164B (en) * | 2019-11-12 | 2023-11-24 | 上海发电设备成套设计研究院有限责任公司 | Turbine-driven gas compression system and working method thereof |
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