CN117759362A - Hydrogen fuel combined cycle steam power plant - Google Patents
Hydrogen fuel combined cycle steam power plant Download PDFInfo
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- CN117759362A CN117759362A CN202311867154.6A CN202311867154A CN117759362A CN 117759362 A CN117759362 A CN 117759362A CN 202311867154 A CN202311867154 A CN 202311867154A CN 117759362 A CN117759362 A CN 117759362A
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- expander
- compressor
- condenser
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- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 title claims abstract description 68
- 239000000446 fuel Substances 0.000 title claims abstract description 68
- 239000001257 hydrogen Substances 0.000 title claims abstract description 68
- 229910052739 hydrogen Inorganic materials 0.000 title claims abstract description 68
- 238000002485 combustion reaction Methods 0.000 claims abstract description 97
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 14
- 239000002826 coolant Substances 0.000 claims abstract description 14
- 239000001301 oxygen Substances 0.000 claims abstract description 14
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 14
- 238000000605 extraction Methods 0.000 claims description 3
- 238000009792 diffusion process Methods 0.000 claims description 2
- 230000001105 regulatory effect Effects 0.000 claims 4
- 238000004891 communication Methods 0.000 description 17
- 238000010586 diagram Methods 0.000 description 7
- 238000010438 heat treatment Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 5
- 230000006837 decompression Effects 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 230000002427 irreversible effect Effects 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 230000005611 electricity Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000001172 regenerating effect Effects 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 230000009897 systematic effect Effects 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/16—Combined cycle power plant [CCPP], or combined cycle gas turbine [CCGT]
Abstract
The invention provides a hydrogen fuel combined cycle steam power device, and belongs to the technical field of thermodynamics and thermal dynamics. The outside has hydrogen channel and combustion chamber to communicate, the outside has oxygen channel and combustion chamber to communicate, the compressor has the first steam channel to communicate with second expander through the regenerator, the second expander has low-pressure steam channel to communicate with evaporator, the compressor has the second steam channel to communicate with combustion chamber, the condenser has condensate pipeline to communicate with evaporator through the booster pump, the evaporator has steam channel to communicate with combustion chamber again, the combustion chamber has steam channel to communicate with expander, the expander has low-pressure steam channel to communicate with evaporator through the regenerator, the evaporator has low-pressure steam channel to divide into two-way-the first way communicates with compressor and the second way communicates with condenser, the condenser has condensate pipeline to communicate with outside; the condenser is also provided with a cooling medium channel which is communicated with the outside, and the expander is connected with the compressor and transmits power to form the hydrogen fuel combined cycle steam power device.
Description
Technical field:
the invention belongs to the technical field of thermodynamics and thermal dynamics.
The background technology is as follows:
power and electricity are two basic and important demands in human life and production; among them, converting thermal energy into mechanical energy is an important technical means for providing power and electricity. In the process of converting thermal energy into mechanical energy, the most basic requirement is to adopt the simplest possible technical measure to realize the high efficiency of thermal work-for this purpose, and the technicians are diligent.
In the fuel, hydrogen belongs to a high-quality energy source; when pure oxygen combustion is carried out by taking hydrogen fuel as source energy to obtain power, the efficient utilization is a fundamental requirement, and the power is realized by a combined power cycle device; in order to improve the power application value of the hydrogen fuel, the average temperature of the heat absorption process of the circulating working medium is improved as much as possible, the temperature and the quantity of the heat release load discharged by the thermodynamic system are reduced, and the irreversible loss of the temperature difference of the main heat transfer link in the thermodynamic system is reduced.
In the prior art, the higher the temperature formed by the high-temperature heat load obtained by the circulating working medium, the higher the temperature of the circulating working medium discharged by the high-temperature expander is, the quantity of the circulating working medium is correspondingly increased, and the heat transfer temperature difference loss in the thermodynamic system is also increased.
The invention provides a hydrogen fuel combined cycle steam power device which has reasonable flow, simple structure, small irreversible loss of systematic temperature difference, suitability for oxyhydrogen combustion, flexible determination of the cycle working parameters, consistent cycle working medium and fuel products, high thermodynamic perfection and high cost performance, and is based on the basic principle of simply, actively, safely and efficiently utilizing energy to obtain power.
The invention comprises the following steps:
the invention mainly aims to provide a hydrogen fuel combined cycle steam power plant, and the specific invention is described as follows:
1. the hydrogen fuel combined cycle steam power device mainly comprises an expander, a second expander, a compressor, a booster pump, a regenerator, a condenser, an evaporator and a combustion chamber; the outside has hydrogen channel and combustion chamber to communicate, the outside has oxygen channel and combustion chamber to communicate, the compressor has the first steam channel to communicate with second expander through the regenerator, the second expander has low-pressure steam channel to communicate with evaporator, the compressor has the second steam channel to communicate with combustion chamber, the condenser has condensate pipeline to communicate with evaporator through the booster pump, the evaporator has steam channel to communicate with combustion chamber again, the combustion chamber has steam channel to communicate with expander, the expander has low-pressure steam channel to communicate with evaporator through the regenerator, the evaporator has low-pressure steam channel to divide into two-way-the first way communicates with compressor and the second way communicates with condenser, the condenser has condensate pipeline to communicate with outside; the condenser is also provided with a cooling medium channel which is communicated with the outside, and the expander is connected with the compressor and transmits power to form a hydrogen fuel combined cycle steam power device; wherein, or the expander is connected with the compressor and the booster pump and transmits power.
2. The hydrogen fuel combined cycle steam power device mainly comprises an expander, a second expander, a compressor, a booster pump, a regenerator, a condenser, an evaporator and a combustion chamber; the outside has hydrogen channel and combustion chamber to communicate, the outside has oxygen channel and combustion chamber to communicate, the compressor has the first steam channel to communicate with second expander through the regenerator, the second expander has low-pressure steam channel to communicate with evaporator, the compressor has the second steam channel to communicate with combustion chamber, the condenser has condensate pipeline to communicate with evaporator through booster pump, the evaporator has steam channel to communicate with combustion chamber again, the combustion chamber has steam channel to communicate with expander, the expander has steam channel to communicate with oneself through the regenerator, the expander has low-pressure steam channel to communicate with evaporator again after the expander has steam channel of low pressure to divide into two ways-the first way communicates with compressor and the second way communicates with condenser, the condenser has condensate pipeline to communicate with outside; the condenser is also provided with a cooling medium channel which is communicated with the outside, and the expander is connected with the compressor and transmits power to form a hydrogen fuel combined cycle steam power device; wherein, or the expander is connected with the compressor and the booster pump and transmits power.
3. The hydrogen fuel combined cycle steam power device mainly comprises an expander, a second expander, a compressor, a booster pump, a heat regenerator, a condenser, an evaporator, a combustion chamber and a second heat regenerator; the outside has hydrogen channel and combustion chamber to communicate, the outside has oxygen channel and combustion chamber to communicate, the compressor has the first steam channel to communicate with second expander through the regenerator, the second expander has low-pressure steam channel to communicate with evaporator, the compressor has the second steam channel to communicate with combustion chamber through the second regenerator, the condenser has condensate pipeline to communicate with evaporator through booster pump, the evaporator has steam channel to communicate with combustion chamber through the second regenerator again, the combustion chamber has steam channel to communicate with expander, the expander has low-pressure steam channel to communicate with evaporator through the second regenerator and regenerator, the evaporator has low-pressure steam channel to divide into two ways-the first way is communicated with compressor and the second way is communicated with condenser, the condenser has condensate pipeline to communicate with outside; the condenser is also provided with a cooling medium channel which is communicated with the outside, and the expander is connected with the compressor and transmits power to form a hydrogen fuel combined cycle steam power device; wherein, or the expander is connected with the compressor and the booster pump and transmits power.
4. The hydrogen fuel combined cycle steam power device mainly comprises an expander, a second expander, a compressor, a booster pump, a heat regenerator, a condenser, an evaporator, a combustion chamber and a second heat regenerator; the outside has hydrogen channel to communicate with combustion chamber, the outside has oxygen channel to communicate with combustion chamber, the compressor has first steam channel to communicate with second expander through the regenerator, the second expander has low-pressure steam channel to communicate with evaporator, the compressor has second steam channel to communicate with combustion chamber through the second regenerator, the condenser has condensate pipeline to communicate with evaporator through booster pump, the evaporator has steam channel to communicate with combustion chamber through the second regenerator, the combustion chamber has steam channel to communicate with expander, the expander has low-pressure steam channel to communicate with evaporator through the regenerator after the steam channel is communicated with itself through the second regenerator, the evaporator has low-pressure steam channel to divide into two ways-the first way communicates with compressor and the second way communicates with condenser, the condenser has condensate pipeline to communicate with outside; the condenser is also provided with a cooling medium channel which is communicated with the outside, and the expander is connected with the compressor and transmits power to form a hydrogen fuel combined cycle steam power device; wherein, or the expander is connected with the compressor and the booster pump and transmits power.
5. The hydrogen fuel combined cycle steam power plant is formed by adding a second booster pump and a low-temperature heat regenerator in any one of the hydrogen fuel combined cycle steam power plants in the 1-4 th step, adjusting the communication of a condenser condensate pipe and the booster pump to the communication of the condenser condensate pipe and the low-temperature heat regenerator through the second booster pump, and adding a steam extraction channel to the compressor to be communicated with the low-temperature heat regenerator, wherein the low-temperature heat regenerator is further communicated with the booster pump through the condensate pipe.
6. A hydrogen fuel combined cycle steam power device is formed by adding a second evaporator and a diffuser pipe in any one of the hydrogen fuel combined cycle steam power devices in the 1 st, the 3 rd and the 4 th, adjusting the communication between a low-pressure steam channel of a regenerator and the evaporator to be that between the low-pressure steam channel of the regenerator and the second evaporator through the evaporator, adjusting the communication between the low-pressure steam channel of the second expander and the evaporator to be that between the low-pressure steam channel of the second expander and the second evaporator through the evaporator, adjusting the communication between the low-pressure steam channel of the evaporator and a compressor respectively to be that between the low-pressure steam channel of the second evaporator and the compressor respectively, adjusting the communication between a condensate pipe of the condenser and the evaporator to be that between the condensate pipe of the condenser and the second evaporator through the booster pump and then between the wet steam channel of the second evaporator and the evaporator through the diffuser pipe.
7. The hydrogen-fuel combined cycle steam power plant is formed by adding a second evaporator and a diffuser pipe in the hydrogen-fuel combined cycle steam power plant of the 2 nd aspect, adjusting the communication between the low-pressure steam channel of the expander and the evaporator to the communication between the low-pressure steam channel of the expander and the second evaporator through the evaporator, adjusting the communication between the low-pressure steam channel of the second expander and the evaporator to the communication between the low-pressure steam channel of the second expander and the second evaporator through the evaporator, adjusting the communication between the low-pressure steam channel of the evaporator and the compressor respectively to the low-pressure steam channel of the second evaporator and the compressor respectively to the low-pressure steam channel of the condenser respectively to the compressor and the condenser, adjusting the communication between the condensate pipe of the condenser and the evaporator through the booster pump to the condensate pipe of the condenser and the second evaporator, and then adjusting the communication between the second evaporator and the wet steam channel through the diffuser pipe to the evaporator.
8. The hydrogen-fuel combined cycle steam power plant is formed by adding an expansion speed increaser and replacing an expansion machine, adding a second expansion speed increaser and replacing a second expansion machine, adding a dual-energy compressor and replacing a compressor, adding a newly added diffuser pipe and replacing a booster pump in any one of the hydrogen-fuel combined cycle steam power plants of the 1 st to 7 th.
Description of the drawings:
FIG. 1 is a schematic thermodynamic system diagram of a hydrogen-fuelled combined cycle steam power plant according to the present invention.
FIG. 2 is a schematic thermodynamic system diagram of a hydrogen-fuelled combined cycle steam power plant according to the present invention.
FIG. 3 is a schematic thermodynamic system diagram of a hydrogen-fuelled combined cycle steam power plant according to the present invention.
Fig. 4 is a schematic thermodynamic system diagram of a hydrogen-fuelled combined cycle steam power plant according to the present invention.
Fig. 5 is a schematic thermodynamic system diagram of a hydrogen-fuelled combined cycle steam power plant according to the present invention.
FIG. 6 is a schematic thermodynamic system diagram of a hydrogen-fuelled combined cycle steam power plant according to the present invention.
FIG. 7 is a schematic thermodynamic system diagram of a hydrogen-fuelled combined cycle steam power plant according to the present invention.
In the figure, a 1-expander, a 2-second expander, a 3-compressor, a 4-booster pump, a 5-regenerator, a 6-condenser, a 7-evaporator, an 8-combustion chamber, a 9-second regenerator, a 10-second booster pump, a 11-low temperature regenerator, a 12-second evaporator and a 13-diffusion pipe are arranged; a-expansion speed increaser, B-second expansion speed increaser, C-dual-energy compressor and D-newly added diffuser.
The specific embodiment is as follows:
it is to be noted that the description of the structure and the flow is not repeated if necessary; obvious procedures are not described. The invention is described in detail below with reference to the drawings and examples.
The hydrogen-fuel combined cycle steam power plant shown in fig. 1 is implemented as follows:
(1) Structurally, the device mainly comprises an expander, a second expander, a compressor, a booster pump, a regenerator, a condenser, an evaporator and a combustion chamber; the outside is provided with a hydrogen channel and a combustion chamber 8 which are communicated, the outside is also provided with an oxygen channel and a combustion chamber 8 which are communicated, the compressor 3 is provided with a first steam channel which is communicated with the second expander 2 through the heat regenerator 5, the second expander 2 is also provided with a low-pressure steam channel which is communicated with the evaporator 7, the compressor 3 is also provided with a second steam channel which is communicated with the combustion chamber 8, the condenser 6 is provided with a condensate pipeline which is communicated with the evaporator 7 through the booster pump 4, then the evaporator 7 is further provided with a steam channel which is communicated with the combustion chamber 8, the combustion chamber 8 is also provided with a steam channel which is communicated with the expander 1, the expander 1 is also provided with a low-pressure steam channel which is communicated with the evaporator 7 through the heat regenerator 5, the evaporator 7 is also provided with a low-pressure steam channel which is divided into two paths, namely, the first path is communicated with the compressor 3 and the second path is communicated with the condenser 6, and the condenser 6 is also provided with a condensate pipeline which is communicated with the outside; the condenser 6 is also provided with a cooling medium passage communicating with the outside, and the expander 1 is connected to the compressor 3 and transmits power.
(2) In the flow, hydrogen and oxygen with higher external pressure enter a combustion chamber 8 for combustion to generate high-temperature high-pressure steam; part of low-pressure steam discharged by the evaporator 7 enters the compressor 3 to be boosted and heated to a certain extent and then is divided into two paths, wherein the first path is subjected to heat absorption and heating through the heat regenerator 5 and is subjected to depressurization and work through the second expander 2 and then is provided for the evaporator 7, and the second path is subjected to pressure boosting and heating continuously and then enters the combustion chamber 8 to be mixed with high-temperature steam, absorbs heat and is heated; part of condensate discharged by the condenser 6 is boosted by the booster pump 4, absorbs heat and warms up and vaporizes by the evaporator 7, and then enters the combustion chamber 8 to be mixed with high-temperature steam to absorb heat and warms up; the steam discharged by the combustion chamber 8 flows through the expander 1 to reduce pressure and work, flows through the regenerator 5 to release heat and reduce temperature, and then is supplied to the evaporator 7; the low-pressure steam discharged by the heat regenerator 5 and the second expander 2 flows through the evaporator 7 to release heat and cool, and then is divided into two paths, wherein the first path enters the compressor 3 to raise the pressure and the temperature, and the second path enters the condenser 6 to release heat and condense; the condensed water of the condenser 6 is divided into two paths, wherein the first path is provided for the booster pump 4, and the second path is discharged to the outside; the hydrogen fuel provides driving heat load through the combustion chamber 8, and the cooling medium takes away low-temperature heat load through the condenser 6; work output by the expander 1 and the second expander 2 is provided for the compressor 3 and external power, or work output by the expander 1 and the second expander 2 is provided for the compressor 3, the booster pump 4 and external power, so as to form the hydrogen fuel combined cycle steam power device.
The hydrogen-fuel combined cycle steam power plant shown in fig. 2 is implemented as follows:
(1) Structurally, the device mainly comprises an expander, a second expander, a compressor, a booster pump, a regenerator, a condenser, an evaporator and a combustion chamber; the outside has hydrogen channel to communicate with combustion chamber 8, the outside has oxygen channel to communicate with combustion chamber 8, the compressor 3 has first steam channel to communicate with second expander 2 through the regenerator 5, the second expander 2 has low-pressure steam channel to communicate with evaporator 7, the compressor 3 has second steam channel to communicate with combustion chamber 8, the condenser 6 has condensate pipeline to communicate with evaporator 7 through booster pump 4, then evaporator 7 has steam channel to communicate with combustion chamber 8, combustion chamber 8 has steam channel to communicate with expander 1, expander 1 has steam channel to communicate with oneself through regenerator 5, expander 1 has low-pressure steam channel to communicate with evaporator 7 again, evaporator 7 has low-pressure steam channel to divide into two ways-the first way communicates with compressor 3 and the second way communicates with condenser 6, condenser 6 has condensate water pipe to communicate with outside; the condenser 6 is also provided with a cooling medium passage communicating with the outside, and the expander 1 is connected to the compressor 3 and transmits power.
(2) In flow, compared with the hydrogen fuel combined cycle steam power plant shown in fig. 1, the difference is that: the steam discharged by the combustion chamber 8 enters the expander 1 to perform decompression and work, flows through the regenerator 5 to release heat and cool to a certain extent, enters the expander 1 to continue decompression and work, and then is provided for the evaporator 7 to form the hydrogen fuel combined cycle steam power device.
The hydrogen-fuel combined cycle steam power plant shown in fig. 3 is implemented as follows:
(1) Structurally, the device mainly comprises an expander, a second expander, a compressor, a booster pump, a heat regenerator, a condenser, an evaporator, a combustion chamber and a second heat regenerator; the outside is provided with a hydrogen channel and a combustion chamber 8 which are communicated, the outside is also provided with an oxygen channel and a combustion chamber 8 which are communicated, the compressor 3 is provided with a first steam channel which is communicated with the second expander 2 through the heat regenerator 5, the second expander 2 is also provided with a low-pressure steam channel which is communicated with the evaporator 7, the compressor 3 is also provided with a second steam channel which is communicated with the combustion chamber 8 through the second heat regenerator 9, the condenser 6 is provided with a condensate pipe which is communicated with the evaporator 7 through the booster pump 4, the evaporator 7 is further provided with a steam channel which is communicated with the combustion chamber 8 through the second heat regenerator 9, the combustion chamber 8 is also provided with a steam channel which is communicated with the expander 1, the expander 1 is also provided with a low-pressure steam channel which is divided into two paths, namely, the first path is communicated with the compressor 3 and the second path is communicated with the condenser 6, and the condenser 6 is also provided with a condensate pipe which is communicated with the outside; the condenser 6 is also provided with a cooling medium passage communicating with the outside, and the expander 1 is connected to the compressor 3 and transmits power.
(2) In flow, compared with the hydrogen fuel combined cycle steam power plant shown in fig. 1, the difference is that: high-pressure steam discharged by the evaporator 7 and the compressor 3 flows through the second heat regenerator 9 to absorb heat and raise temperature, and then enters the combustion chamber 8; the low-pressure steam discharged by the expander 1 flows through the second heat regenerator 9, the heat regenerator 5 and the evaporator 7 to release heat and cool gradually, so that the hydrogen fuel combined cycle steam power device is formed.
The hydrogen-fuelled combined cycle steam power plant shown in fig. 4 is implemented as follows:
(1) Structurally, the device mainly comprises an expander, a second expander, a compressor, a booster pump, a heat regenerator, a condenser, an evaporator, a combustion chamber and a second heat regenerator; the outside is provided with a hydrogen channel and a combustion chamber 8 which are communicated, the outside is also provided with an oxygen channel and a combustion chamber 8 which are communicated, the compressor 3 is provided with a first steam channel which is communicated with the second expander 2 through the heat regenerator 5, the second expander 2 is also provided with a low-pressure steam channel which is communicated with the evaporator 7, the compressor 3 is also provided with a second steam channel which is communicated with the combustion chamber 8 through the second heat regenerator 9, the condenser 6 is provided with a condensate pipeline which is communicated with the evaporator 7 through the booster pump 4, then the evaporator 7 is further provided with a steam channel which is communicated with the combustion chamber 8 through the second heat regenerator 9, the combustion chamber 8 is also provided with a steam channel which is communicated with the expander 1, the expander 1 is further provided with a low-pressure steam channel which is communicated with the evaporator 7 through the heat regenerator 5 after the steam channel is communicated with the expander 1, the evaporator 7 is also provided with a low-pressure steam channel which is divided into two paths, namely, the first path is communicated with the compressor 3 and the second path is communicated with the condenser 6, and the condenser 6 is also provided with a condensate pipeline which is communicated with the outside; the condenser 6 is also provided with a cooling medium passage communicating with the outside, and the expander 1 is connected to the compressor 3 and transmits power.
(2) In flow, compared with the hydrogen fuel combined cycle steam power plant shown in fig. 1, the difference is that: high-pressure steam discharged by the evaporator 7 and the compressor 3 flows through the second heat regenerator 9 to absorb heat and raise temperature, and then enters the combustion chamber 8; the steam discharged by the combustion chamber 8 enters the expander 1 to perform decompression and work, flows through the second regenerator 9 to release heat and reduce temperature after reaching a certain degree, enters the expander 1 to continue decompression and work, flows through the regenerator 5 to release heat and reduce temperature and is provided for the evaporator 7, and the hydrogen fuel combined cycle steam power device is formed.
The hydrogen-fuel combined cycle steam power plant shown in fig. 5 is implemented as follows:
(1) Structurally, in the hydrogen-fuel combined cycle steam power device shown in fig. 1, a second booster pump and a low-temperature heat regenerator are added, a condensate pipe of the condenser 6 is communicated with the booster pump 4, the condensate pipe of the condenser 6 is communicated with the low-temperature heat regenerator 11 through the second booster pump 10, a steam extraction channel is additionally arranged on the compressor 3 and is communicated with the low-temperature heat regenerator 11, and the condensate pipe of the low-temperature heat regenerator 11 is communicated with the booster pump 4.
(2) In flow, compared with the hydrogen fuel combined cycle steam power plant shown in fig. 1, the difference is that: part of condensate discharged by the condenser 6 flows through the second booster pump 10 to be boosted and then enters the low-temperature regenerator 11 to be mixed with the extracted steam from the compressor 3, absorbs heat and heats up, and the extracted steam is released to form condensate; condensate of the low-temperature heat regenerator 11 flows through the booster pump 4 to boost pressure, and then enters the evaporator 7 to absorb heat to raise temperature and vaporize; the low-pressure steam discharged by the heat regenerator 5 and the second expander 2 flows through the evaporator 7 to release heat and cool, and then is divided into two paths, wherein the first path enters the compressor 3 to raise the pressure and the temperature, and the second path enters the condenser 6 to release heat and condense; the low-pressure steam enters the compressor 3 to be boosted and heated to a certain extent, and then is divided into two paths, namely a first path is provided for the low-temperature heat regenerator 11, and a second path is divided into two paths after the boosting and the heating are continued, namely the first path is provided for the heat regenerator 5 and the second path enters the combustion chamber 8, so that the hydrogen fuel combined cycle steam power device is formed.
The hydrogen-fuel combined cycle steam power plant shown in fig. 6 is implemented as follows:
(1) In the hydrogen-fuel combined cycle steam power plant shown in fig. 1, a second evaporator and a diffuser pipe are added, the communication between a low-pressure steam channel of the regenerator 5 and the evaporator 7 is adjusted to be that the low-pressure steam channel of the regenerator 5 is communicated with the second evaporator 12 through the evaporator 7, the communication between the low-pressure steam channel of the second expander 2 and the evaporator 7 is adjusted to be that the low-pressure steam channel of the second expander 2 is communicated with the second evaporator 12 through the evaporator 7, the communication between the low-pressure steam channel of the evaporator 7 and the compressor 3 and the condenser 6 is respectively adjusted to be that the low-pressure steam channel of the second evaporator 12 is respectively communicated with the compressor 3 and the condenser 6, the communication between the condenser 6 and the evaporator 7 is adjusted to be that the condensate channel of the condenser 6 is communicated with the second evaporator 12 through the booster pump 4, and then the wet steam channel of the second evaporator 12 is communicated with the evaporator 7 through the diffuser pipe 13.
(2) In flow, compared with the hydrogen fuel combined cycle steam power plant shown in fig. 1, the difference is that: part of condensate discharged by the condenser 6 is boosted by the booster pump 4, absorbs heat and warms up by the second evaporator 12, is partially vaporized and is increased in speed, is reduced in speed and boosted by the diffuser pipe 13, and then enters the evaporator 7 to absorb heat and vaporize; low-pressure steam discharged by the heat regenerator 5 and the second expander 2 is gradually released and cooled through the evaporator 7 and the second evaporator 12, and then respectively enters the compressor 3 for boosting and heating and the condenser 6 for releasing heat and condensing to form the hydrogen fuel combined cycle steam power device.
The hydrogen-fuelled combined cycle steam power plant shown in fig. 7 is implemented as follows:
(1) Structurally, in the hydrogen-fuel combined cycle steam power plant shown in fig. 1, an expansion speed increaser a is added in place of the expander 1, a second expansion speed increaser B is added in place of the second expander 2, a dual-energy compressor C is added in place of the compressor 3, and a new diffuser pipe D is added in place of the booster pump 4.
(2) In flow, compared with the hydrogen fuel combined cycle steam power plant shown in fig. 1, the difference is that: part of low-pressure steam discharged by the evaporator 7 enters the dual-energy compressor C to be boosted, heated and decelerated to a certain extent and then is divided into two paths, wherein the first path is subjected to heat absorption and heating through the heat regenerator 5, and the second path is subjected to depressurization, work and acceleration through the second expansion speed increaser B and then is provided for the evaporator 7, and the second path is subjected to pressure boosting and heating continuously and then enters the combustion chamber 8 to be mixed with high-temperature steam, absorb heat and heat; part of condensate discharged by the condenser 6 flows through the newly added diffuser pipe D to be reduced in speed and boosted, flows through the evaporator 7 to absorb heat and evaporate, and then enters the combustion chamber 8 to be mixed with high-temperature steam to absorb heat and raise temperature; the steam discharged by the combustion chamber 8 flows through the expansion speed increaser A to be decompressed, work done and slowed down, flows through the heat regenerator 5 to release heat and cool down, and then is supplied to the evaporator 7; the low-pressure steam discharged by the heat regenerator 5 and the second expansion speed increaser B flows through the evaporator 7 to release heat and cool, and then is divided into two paths, wherein the first path enters the dual-energy compressor C to raise the pressure and raise the temperature and reduce the speed, and the second path enters the condenser 6 to release heat and condense; the work output by the expansion speed increaser A and the second expansion speed increaser B is provided for the dual-energy compressor C and external power to form the hydrogen fuel combined cycle steam power device.
The hydrogen fuel combined cycle steam power device provided by the invention has the following effects and advantages:
(1) The water vapor is a circulating working medium, the oxyhydrogen combustion is used for producing high-temperature steam, the properties of fuel combustion products are consistent with those of the circulating working medium, and the separation process of the combustion products is simple.
(2) The utilization degree of the temperature difference in the back heating link between gases (steam) is high, and the heat-changing work efficiency is improved.
(3) And in the regenerative link between the gas (steam) working medium and the liquid working medium, the flow rate of the gas working medium is large, the temperature change interval is relatively narrow, the irreversible loss of the temperature difference is reduced, and the heat-variable work efficiency is improved.
(4) The constant temperature realizes low-temperature heat load discharge, the temperature difference loss is small, and the heat change work efficiency is improved.
(5) By utilizing the characteristics of working media, the temperature difference utilization level in the heat transfer process is improved by adopting a simple technical means, and the heat efficiency is improved.
(6) The flow is reasonable, the structure is simple, the manufacturing cost of the hydrogen fuel combined cycle steam power plant is obviously reduced, and the system economy is improved.
(7) And a plurality of heat regeneration technical means are provided, and the coordination of the device in the aspects of power, thermal efficiency, step-up ratio and the like is effectively improved.
(8) The method provides a plurality of specific technical schemes, is beneficial to improving the reasonable utilization level of energy and expanding the application range and the value of the hydrogen fuel combined cycle steam power plant.
Claims (8)
1. The hydrogen fuel combined cycle steam power device mainly comprises an expander, a second expander, a compressor, a booster pump, a regenerator, a condenser, an evaporator and a combustion chamber; the outside is provided with a hydrogen channel which is communicated with a combustion chamber (8), the outside is also provided with an oxygen channel which is communicated with the combustion chamber (8), the compressor (3) is provided with a first steam channel which is communicated with a second expander (2) through a heat regenerator (5), the second expander (2) is also provided with a low-pressure steam channel which is communicated with an evaporator (7), the compressor (3) is also provided with a second steam channel which is communicated with the combustion chamber (8), the condenser (6) is provided with a condensate pipeline which is communicated with the evaporator (7) through a booster pump (4), the evaporator (7) is further provided with a steam channel which is communicated with the combustion chamber (8), the combustion chamber (8) is also provided with a steam channel which is communicated with the expander (1), the expander (1) is also provided with a low-pressure steam channel which is communicated with the evaporator (7) through the heat regenerator (5), the evaporator (7) is also provided with a low-pressure steam channel which is divided into two paths, namely the first path is communicated with the compressor (3) and the second path is communicated with the condenser (6), and the condenser (6) is also provided with condensate pipeline which is communicated with the outside; the condenser (6) is also provided with a cooling medium channel which is communicated with the outside, and the expander (1) is connected with the compressor (3) and transmits power to form a hydrogen fuel combined cycle steam power device; wherein, or the expander (1) is connected with the compressor (3) and the booster pump (4) and transmits power.
2. The hydrogen fuel combined cycle steam power device mainly comprises an expander, a second expander, a compressor, a booster pump, a regenerator, a condenser, an evaporator and a combustion chamber; the outside is provided with a hydrogen channel which is communicated with a combustion chamber (8), the outside is also provided with an oxygen channel which is communicated with the combustion chamber (8), the compressor (3) is provided with a first steam channel which is communicated with a second expander (2) through a heat regenerator (5), the second expander (2) is also provided with a low-pressure steam channel which is communicated with the evaporator (7), the compressor (3) is also provided with a second steam channel which is communicated with the combustion chamber (8), the condenser (6) is provided with a condensate pipeline which is communicated with the evaporator (7) through a booster pump (4), then the evaporator (7) is further provided with a steam channel which is communicated with the combustion chamber (8), the combustion chamber (8) is also provided with a steam channel which is communicated with the expander (1), the expander (1) is further provided with a low-pressure steam channel which is communicated with the evaporator (7) after the heat regenerator (5) is communicated with the evaporator, the evaporator (7) is also provided with the low-pressure steam channel which is divided into two paths, namely the first path which is communicated with the compressor (3) and the second path which is communicated with the condenser (6), and the condenser (6) is also communicated with the outside; the condenser (6) is also provided with a cooling medium channel which is communicated with the outside, and the expander (1) is connected with the compressor (3) and transmits power to form a hydrogen fuel combined cycle steam power device; wherein, or the expander (1) is connected with the compressor (3) and the booster pump (4) and transmits power.
3. The hydrogen fuel combined cycle steam power device mainly comprises an expander, a second expander, a compressor, a booster pump, a heat regenerator, a condenser, an evaporator, a combustion chamber and a second heat regenerator; the outside is provided with a hydrogen channel which is communicated with a combustion chamber (8), the outside is also provided with an oxygen channel which is communicated with the combustion chamber (8), the compressor (3) is provided with a first steam channel which is communicated with a second expander (2) through a heat regenerator (5), the second expander (2) is also provided with a low-pressure steam channel which is communicated with an evaporator (7), the compressor (3) is also provided with a second steam channel which is communicated with the combustion chamber (8) through a second heat regenerator (9), the condenser (6) is provided with a condensate pipeline which is communicated with the evaporator (7) through a booster pump (4), the evaporator (7) is also provided with a steam channel which is communicated with the combustion chamber (8) through the second heat regenerator (9), the combustion chamber (8) is also provided with a steam channel which is communicated with the expander (1), the expander (1) is also provided with a low-pressure steam channel which is communicated with the evaporator (7) through the second heat regenerator (9), the evaporator (7) is also provided with a low-pressure steam channel which is divided into two paths, namely the first path is communicated with the compressor (3) and the second path is also communicated with the condenser (6), and the condenser (6) is communicated with the outside through the condensate pipeline; the condenser (6) is also provided with a cooling medium channel which is communicated with the outside, and the expander (1) is connected with the compressor (3) and transmits power to form a hydrogen fuel combined cycle steam power device; wherein, or the expander (1) is connected with the compressor (3) and the booster pump (4) and transmits power.
4. The hydrogen fuel combined cycle steam power device mainly comprises an expander, a second expander, a compressor, a booster pump, a heat regenerator, a condenser, an evaporator, a combustion chamber and a second heat regenerator; the outside is provided with a hydrogen channel which is communicated with a combustion chamber (8), the outside is also provided with an oxygen channel which is communicated with the combustion chamber (8), the compressor (3) is provided with a first steam channel which is communicated with a second expander (2) through a heat regenerator (5), the second expander (2) is also provided with a low-pressure steam channel which is communicated with an evaporator (7), the compressor (3) is also provided with a second steam channel which is communicated with the combustion chamber (8) through a second heat regenerator (9), the condenser (6) is provided with a condensate pipeline which is communicated with the evaporator (7) through a booster pump (4), the evaporator (7) is also provided with a steam channel which is communicated with the combustion chamber (8) through the second heat regenerator (9), the combustion chamber (8) is also provided with a steam channel which is communicated with the expander (1) through the second heat regenerator (9), the expander (1) is also provided with a low-pressure steam channel which is communicated with the evaporator (7) through the second heat regenerator (5), the evaporator (7) is also provided with the low-pressure steam channel which is divided into two paths, namely a first path which is communicated with the compressor (3) and a second path which is communicated with the condensate pipeline (6), and the condensate pipeline is communicated with the outside; the condenser (6) is also provided with a cooling medium channel which is communicated with the outside, and the expander (1) is connected with the compressor (3) and transmits power to form a hydrogen fuel combined cycle steam power device; wherein, or the expander (1) is connected with the compressor (3) and the booster pump (4) and transmits power.
5. A hydrogen fuel combined cycle steam power device is characterized in that a second booster pump and a low-temperature heat regenerator are added in any one of the hydrogen fuel combined cycle steam power devices in claims 1-4, a condensate pipe arranged on a condenser (6) is communicated with the booster pump (4) and is adjusted to be communicated with the low-temperature heat regenerator (11) through a second booster pump (10), a steam extraction channel is additionally arranged on a compressor (3) and is communicated with the low-temperature heat regenerator (11), and a condensate pipe arranged on the low-temperature heat regenerator (11) is communicated with the booster pump (4) to form the hydrogen fuel combined cycle steam power device.
6. In any one of the hydrogen fuel combined cycle steam power devices according to claims 1, 3 and 4, a second evaporator and a diffuser pipe are added, the low-pressure steam channel of the regenerator (5) is communicated with the evaporator (7) and is adjusted to be communicated with the second evaporator (12) through the evaporator (7), the low-pressure steam channel of the second expander (2) is communicated with the evaporator (7) and is adjusted to be communicated with the second evaporator (2) through the evaporator (7), the low-pressure steam channel of the evaporator (7) is communicated with the second evaporator (12) through the evaporator (7), the low-pressure steam channel of the evaporator (7) is respectively communicated with the compressor (3) and the condenser (6) and is adjusted to be communicated with the compressor (3) and the condenser (6) through a condensate pipe, the condensate pipe of the condenser (6) is communicated with the evaporator (7) through a booster pump (4) and is adjusted to be communicated with the second evaporator (12) through the condensate pipe, and then the wet steam channel of the second evaporator (12) is communicated with the wet steam power device through the second evaporator (13).
7. In the hydrogen fuel combined cycle steam power plant, a second evaporator and a diffuser pipe are added in the hydrogen fuel combined cycle steam power plant according to claim 2, the low-pressure steam channel of the expander (1) is communicated with the evaporator (7) and is regulated to be communicated with the second evaporator (12) through the evaporator (7), the low-pressure steam channel of the second expander (2) is communicated with the evaporator (7) and is regulated to be communicated with the second evaporator (12) through the evaporator (7), the low-pressure steam channel of the evaporator (7) is respectively communicated with the compressor (3) and the condenser (6) and is regulated to be communicated with the compressor (3) and the condenser (6) through the low-pressure steam channel of the second evaporator (12), the condensate pipe of the condenser (6) is communicated with the evaporator (7) through the pressure booster pump (4) and is regulated to be communicated with the condensate pipe of the condenser (6) through the pressure booster pump (4) and is communicated with the second evaporator (12) through the second evaporator (12), and then the low-pressure steam channel of the second evaporator (12) is communicated with the wet steam pipe through the condenser (13) to form the combined cycle steam power plant.
8. In the hydrogen fuel combined cycle steam power plant, an expansion speed increaser (A) is added to replace the expansion machine (1), a second expansion speed increaser (B) is added to replace the second expansion machine (2), a dual-energy compressor (C) is added to replace the compressor (3), a new diffusion pipe (D) is added to replace the booster pump (4) to form the hydrogen fuel combined cycle steam power plant.
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| CN202211744110X | 2022-12-30 | ||
| CN202211744110 | 2022-12-30 |
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