CN114486273A - Park flexibility reforms transform unit hydrogen and burns test device thoughtlessly - Google Patents
Park flexibility reforms transform unit hydrogen and burns test device thoughtlessly Download PDFInfo
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- CN114486273A CN114486273A CN202111610883.4A CN202111610883A CN114486273A CN 114486273 A CN114486273 A CN 114486273A CN 202111610883 A CN202111610883 A CN 202111610883A CN 114486273 A CN114486273 A CN 114486273A
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- 229910052739 hydrogen Inorganic materials 0.000 title claims abstract description 52
- 239000001257 hydrogen Substances 0.000 title claims abstract description 52
- 238000012360 testing method Methods 0.000 title claims abstract description 48
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 title claims abstract description 47
- 238000002485 combustion reaction Methods 0.000 claims abstract description 195
- 238000001816 cooling Methods 0.000 claims abstract description 94
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 40
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims abstract description 32
- 239000000779 smoke Substances 0.000 claims abstract description 32
- 238000009792 diffusion process Methods 0.000 claims abstract description 29
- 239000000446 fuel Substances 0.000 claims abstract description 19
- 239000003345 natural gas Substances 0.000 claims abstract description 16
- 239000000203 mixture Substances 0.000 claims abstract description 5
- 230000001502 supplementing effect Effects 0.000 claims abstract description 5
- 239000000498 cooling water Substances 0.000 claims description 23
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims description 12
- 239000007789 gas Substances 0.000 claims description 9
- 238000012986 modification Methods 0.000 claims description 8
- 230000004048 modification Effects 0.000 claims description 8
- 229910002092 carbon dioxide Inorganic materials 0.000 claims description 6
- 239000001569 carbon dioxide Substances 0.000 claims description 6
- 239000007921 spray Substances 0.000 claims description 4
- 238000011160 research Methods 0.000 abstract description 7
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 230000007547 defect Effects 0.000 abstract description 2
- 150000002431 hydrogen Chemical class 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 238000011161 development Methods 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000003546 flue gas Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 238000010926 purge Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M15/00—Testing of engines
- G01M15/14—Testing gas-turbine engines or jet-propulsion engines
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
- F23D14/02—Premix gas burners, i.e. in which gaseous fuel is mixed with combustion air upstream of the combustion zone
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
- F23D14/46—Details, e.g. noise reduction means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
- F23D14/46—Details, e.g. noise reduction means
- F23D14/62—Mixing devices; Mixing tubes
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
- F23D14/46—Details, e.g. noise reduction means
- F23D14/72—Safety devices, e.g. operative in case of failure of gas supply
- F23D14/78—Cooling burner parts
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N31/00—Investigating or analysing non-biological materials by the use of the chemical methods specified in the subgroup; Apparatus specially adapted for such methods
- G01N31/12—Investigating or analysing non-biological materials by the use of the chemical methods specified in the subgroup; Apparatus specially adapted for such methods using combustion
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Molecular Biology (AREA)
- Analytical Chemistry (AREA)
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- General Health & Medical Sciences (AREA)
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Abstract
The invention belongs to the technical field of combustion tests, and particularly relates to a hydrogen mixed combustion test device for a park flexibility improved unit. Aiming at the defect that a hydrogen mixed combustion engine used for the flexibility of the power grid of the existing park lacks relevant research, the invention adopts the following technical scheme: the utility model provides a unit hydrogen co-combustion test device is reformed transform to garden flexibility, includes: the combustion assembly comprises an end cover and a combustor, wherein the combustor is provided with a cyclone section, a combustion chamber and an outlet section, the end cover is connected with the cyclone section, two sections of combustion pieces are arranged in the combustion chamber, and the two sections of combustion pieces comprise a front combustion convergence section and a rear combustion diffusion section; a fuel assembly disposed on the end cap to provide a hydrogen/natural gas mixture and air to the combustion chamber; a combustion-supporting assembly for supplementing air to the combustion chamber; a smoke evacuation assembly; the cooling assembly comprises a water cooling assembly and an air cooling assembly; a fire extinguishing assembly. The invention has the beneficial effects that: a hydrogen co-combustion test can be performed.
Description
Technical Field
The invention belongs to the technical field of combustion tests, and particularly relates to a hydrogen mixed combustion test device for a park flexibility improved unit.
Background
The rapid development of large-scale intermittent renewable energy sources represented by wind power and photovoltaic provides great requirements for the flexibility of a power grid. The existing flexible resources mainly have four sources: the flexible operation, energy storage facilities, trans-provincial and trans-regional trading and demand side resources of the power plant can be scheduled. Compared with other three types of flexible resources, flexible operation of schedulable power plants is the most important way to provide flexibility for power systems at present.
The gas power generation has the advantages of short start-stop time, cleanness and environmental protection, and plays an important role in power grid peak regulation. In recent years, a large number of gas turbine units in a garden are continuously built, particularly, under the background that the nation vigorously promotes the realization of a '3060' double-carbon target, hydrogen energy becomes an important component of an energy system in China, the development of a hydrogen hybrid engine plays a key supporting role in the construction of a novel power system taking new energy as a main body, and important opportunities are provided for the realization of 'curve overtaking' of the gas turbine in China.
The existing gas turbine aiming at flexibility improvement has less research, meanwhile, the existing gas turbine has less reference when researching hydrogen combustion, and related research needs to be carried out urgently.
Disclosure of Invention
The invention provides a hydrogen mixed combustion test device of a park flexibility modification unit, aiming at the defect that a hydrogen mixed combustion engine used for the flexibility of the existing park power grid is lack of related research, so as to research the combustion effect of hydrogen mixed fuel and analyze the combustion condition under a new combustion test.
In order to achieve the purpose, the invention adopts the following technical scheme: the utility model provides a unit hydrogen co-combustion test device is reformed transform to garden flexibility, hydrogen co-combustion test device includes:
the combustion assembly comprises an end cover and a combustor, wherein the combustor is provided with a cyclone section, a combustion chamber and an outlet section, the end cover is connected with the cyclone section, two sections of combustion pieces are arranged in the combustion chamber, and the two sections of combustion pieces comprise a front combustion convergence section and a rear combustion diffusion section;
a fuel assembly disposed on the end cap to provide a hydrogen/natural gas mixture and air to the combustion chamber;
a combustion-supporting assembly for supplementing air to the combustion chamber;
the smoke exhaust assembly comprises a smoke exhaust pipe connected with the outlet section;
the cooling assembly comprises a water cooling assembly and an air cooling assembly;
and the fire extinguishing assembly sprays carbon dioxide into the combustion chamber.
The hydrogen mixed combustion test device of the park flexibility improved unit can simulate high-efficiency combustion and sectional combustion; the cooling assembly is arranged to realize cooling of the combustion structure and guarantee continuation of the test; the smoke exhaust assembly is arranged to exhaust smoke; the fire extinguishing assembly is arranged to realize fire extinguishing and ensure safety. The hydrogen mixed combustion test device for the park flexibility improved unit can be used for researching the combustion effect of the hydrogen mixed fuel, analyzing the combustion condition under a new combustion structure, and is complete in function, complete in system and capable of making up the blank of the existing research.
As an improvement, the front end of the combustion convergent section is connected with the inner wall of the combustion chamber into a whole, and the rear part of the combustion convergent section is separated; the front end of the combustion diffusion section is separated from the inner wall of the combustion chamber, and the rear end of the combustion diffusion section is connected into a whole.
As an improvement, the combustion chamber is of an arc-shaped structure, the middle of the combustion chamber is large, and the two ends of the combustion chamber are small; the combustion convergence section is of an arc-shaped structure, and the middle of the combustion convergence section is large, and the two ends of the combustion convergence section are small; the combustion diffusion section comprises an arc-shaped section and a flaring section, and the middle of the arc-shaped section is large, and the two ends of the arc-shaped section are small. The arc structure is favorable for gas flow.
As an improvement, the combustion diffusion section is provided with diffusion holes; a swirler is arranged in the swirling flow section and is positioned at the front end of the swirling flow section.
As an improvement, the fuel assembly comprises an air pipe and a hydrogen/natural gas mixing pipe which are welded on the end cover, the hydrogen/natural gas mixing pipe is positioned in the center of the end cover, and at least two air pipes are uniformly distributed.
As a modification, the end cover is provided with internal threads, the cyclone section is provided with external threads, and the end cover is in threaded connection with the cyclone section; the outlet section is provided with internal threads, the smoke exhaust pipe is provided with external threads, and the outlet section is in threaded connection with the smoke exhaust pipe; the smoke exhaust pipe is L-shaped.
As a modification, the air cooling assembly is arranged between the combustion chamber and the water cooling assembly; the air inlet end of the air cooling assembly is positioned at the outlet section, and the air outlet end of the air cooling assembly is positioned at the rotational flow section; the water inlet end of the water cooling assembly is located at the outlet section, and the water outlet end of the water cooling assembly is located at the rotational flow section.
As an improvement, the air cooling assembly comprises a cooling air inlet pipe, a cooling air annular pipe, a cooling air outlet annular pipe and a cooling air outlet pipe which are communicated with each other, the cooling air annular pipe is located at the outlet section, the cooling air outlet annular pipe is located at the cyclone section, the cooling air pipe is located at the outer side of the combustion chamber, the combustor comprises a water flow channel piece located at the outer side of the combustion chamber, a water flow channel is formed in the water flow channel piece, and a gap used for installing the air pipe is formed between the water flow channel piece and the combustion chamber.
As an improvement, the water cooling assembly comprises a cooling water inlet pipe, a cooling water inlet ring pipe, a cooling water outlet ring pipe and a cooling water outlet pipe which are communicated with the water flow channel, wherein the cooling water inlet pipe is higher than the cooling water outlet pipe; the cooling air outlet pipe is higher than the cooling air inlet pipe.
As an improvement, the combustion-supporting assembly comprises a combustion-supporting air pipe, and the air outlet end of the combustion-supporting air pipe is positioned between the inner wall of the combustion chamber and the combustion diffusion section.
As an improvement, the fire extinguishing assembly comprises a fire extinguishing circular pipe and a fire extinguishing air inlet pipe which are communicated, a plurality of nozzles are arranged on the fire extinguishing circular pipe, the fire extinguishing circular pipe is connected with the combustion chamber into a whole, and the fire extinguishing circular pipe is close to the combustion diffusion section.
The hydrogen mixed combustion test device for the park flexibility improved unit has the advantages that: two sections of combustion pieces are arranged, so that the sectional combustion can be realized; the combustion-supporting component is arranged, so that high-efficiency combustion can be simulated; the cooling assembly is arranged to realize cooling of the combustion structure and guarantee continuation of the test; the smoke exhaust assembly is arranged to exhaust smoke; the fire extinguishing assembly is arranged, fire extinguishing is achieved, and safety is guaranteed.
Drawings
Fig. 1 is a partially cut perspective view of a hydrogen-mixed combustion test apparatus according to a first embodiment of the present invention.
Fig. 2 is a partially cross-sectioned front view of a hydrogen-mixed combustion test apparatus according to a first embodiment of the present invention.
In the figure, 1, a combustion assembly; 11. an end cap; 12. a cyclone section; 13. a combustion chamber; 14. an outlet section; 15. two-stage combustion members; 151. a combustion convergence section; 152. a combustion diffusion section; 153. a diffusion hole; 16. a swirler;
2. a fuel assembly; 21. an air tube; 22. a hydrogen/natural gas mixing tube;
3. a combustion-supporting assembly; 31. a combustion air pipe;
4. a smoke evacuation assembly; 41. a smoke exhaust pipe;
5. an air cooling assembly; 51. a cooling air inlet pipe; 52. a cooling air annular tube; 53. a cooling air pipe; 54. a cooling air outlet collar; 55. a cooling air outlet pipe;
6. a water-cooling assembly; 61. a cooling water inlet pipe; 62. a cooling water inlet ring pipe; 63. a water flow passage member; 64. a cooling water outlet ring pipe; 65. a cooling water outlet pipe;
7. a fire extinguishing assembly; 71. a fire extinguishing air inlet pipe; 72. a fire extinguishing ring pipe; 73. and (4) a nozzle.
Detailed Description
The technical solutions of the embodiments of the present invention will be explained and explained below with reference to the drawings of the embodiments of the present invention, but the embodiments described below are only preferred embodiments of the present invention, and are not all embodiments. Other embodiments obtained by persons skilled in the art without any inventive work based on the embodiments in the embodiment belong to the protection scope of the invention.
Referring to fig. 1 and fig. 2, the hydrogen co-combustion testing apparatus for a park flexibility modification unit of the present invention comprises:
the combustion assembly comprises an end cover and a combustor, wherein the combustor is provided with a cyclone section, a combustion chamber and an outlet section, the end cover is connected with the cyclone section, two sections of combustion pieces are arranged in the combustion chamber, and the two sections of combustion pieces comprise a front combustion convergence section and a rear combustion diffusion section;
a fuel assembly disposed on the end cap to provide a hydrogen/natural gas mixture and air to the combustion chamber;
a combustion-supporting assembly for supplementing air to the combustion chamber;
the smoke exhaust assembly comprises a smoke exhaust pipe connected with the outlet section;
the cooling assembly comprises a water cooling assembly and an air cooling assembly;
and the fire extinguishing assembly sprays carbon dioxide into the combustion chamber.
The hydrogen mixed combustion test device of the park flexibility improved unit can simulate high-efficiency combustion and sectional combustion; the cooling assembly is arranged to realize cooling of the combustion structure and guarantee continuation of the test; the smoke exhaust assembly is arranged to exhaust smoke; the fire extinguishing assembly is arranged, fire extinguishing is achieved, and safety is guaranteed. The hydrogen mixed combustion test device for the park flexibility improved unit can be used for researching the combustion effect of the hydrogen mixed fuel, analyzing the combustion condition under a new combustion structure, and is complete in function, complete in system and capable of making up the blank of the existing research.
Example one
Referring to fig. 1 and fig. 2, a park flexibility modification unit hydrogen mixed combustion test device according to a first embodiment of the present invention includes:
the combustion assembly 1 comprises an end cover 11 and a combustor, wherein the combustor is provided with a cyclone section 12, a combustion chamber 13 and an outlet section 14, the end cover 11 is connected with the cyclone section 12, two sections of combustion pieces 15 are arranged in the combustion chamber 13, and each two sections of combustion pieces 15 comprises a front combustion convergence section 151 and a rear combustion diffusion section 152;
a fuel assembly 2 disposed on the end cover 11 for supplying a hydrogen 22/natural gas mixture and air to the combustion chamber 13;
a combustion-supporting assembly 3 for supplementing air to the combustion chamber 13;
a smoke evacuation assembly 4 comprising a smoke evacuation duct 41 connected to said outlet section 14;
the cooling assembly comprises a water cooling assembly 6 and an air cooling assembly 5;
and the fire extinguishing assembly 7 sprays carbon dioxide into the combustion chamber 13.
In this embodiment, the front end of the combustion convergence section 151 is connected with the inner wall of the combustion chamber 13 as a whole, and the rear end is separated; the front end of the combustion diffusion section 152 is separated from the inner wall of the combustion chamber 13, and the rear end is connected as a whole.
In this embodiment, the combustion chamber 13 is an arc-shaped structure, and has a large middle and small ends; the combustion convergence section 151 is of an arc-shaped structure, and the middle of the combustion convergence section is large, and the two ends of the combustion convergence section are small; the combustion diffusion section 152 includes an arc-shaped section and a flared section, and the arc-shaped section has a large middle and small ends. The arc structure is favorable for gas flow.
In this embodiment, the combustion diffuser section 152 is provided with diffuser holes 153. The diffusion holes 153 are uniformly distributed annularly. A space is formed between the two sections of the combustion piece 15 and the combustion chamber 13, and a combustion supporting pipe is arranged in the space.
In this embodiment, a swirler 16 is disposed in the swirling section 12, and the swirler 16 is located at the front end of the swirling section 12. The cyclone section 12 is provided with a limit step, and the cyclone 16 is arranged on the limit step.
In this embodiment, the fuel assembly 2 includes an air tube 21 and a hydrogen/natural gas mixing tube 22 welded to the end cover 11, the hydrogen/natural gas mixing tube 22 is located at the center of the end cover 11, and at least two air tubes 21 are uniformly distributed.
In this embodiment, the end cover 11 has an internal thread, the cyclone section 12 has an external thread, and the end cover 11 is in threaded connection with the cyclone section 12; the outlet section 14 is provided with an internal thread, the smoke exhaust pipe 41 is provided with an external thread, and the outlet section 14 and the smoke exhaust pipe 41 are in threaded connection.
In this embodiment, the smoke exhaust pipe 41 is L-shaped.
In this embodiment, the air cooling assembly 5 is disposed between the combustion chamber 13 and the water cooling assembly 6; the air inlet end of the air cooling assembly 5 is positioned at the outlet section 14, and the air outlet end is positioned at the rotational flow section 12; the water inlet end of the water cooling component 6 is positioned at the outlet section 14, and the water outlet end is positioned at the rotational flow section 12.
In this embodiment, the air cooling assembly 5 includes a cooling air inlet pipe 51, a cooling air ring pipe 52, a cooling air pipe 53, a cooling air outlet ring pipe 54 and a cooling air outlet pipe 55, which are communicated with each other, the cooling air ring pipe 52 is located at the outlet section 14, the cooling air outlet ring pipe 54 is located at the swirling flow section 12, the cooling air pipe 53 is located at the outer side of the combustion chamber 13, the combustor includes a water flow passage member 63 located at the outer side of the combustion chamber 13, a water flow passage is formed in the water flow passage member 63, and a gap for installing the air pipe 21 is formed between the water flow passage and the combustion chamber 13. The cooling air pipes 53 are distributed annularly and uniformly. The water flow channels are uniformly distributed in a plurality of annular shapes.
In this embodiment, the water cooling assembly 6 includes a cooling water inlet pipe 61, a cooling water inlet ring pipe 62, a cooling water outlet ring pipe 64 and a cooling water outlet pipe 65 which are communicated with the water flow channel.
In this embodiment, the cooling water inlet pipe 61 is higher than the cooling water outlet pipe 65; the cooling air outlet duct 55 is higher than the cooling air inlet duct 51.
In this embodiment, the combustion-supporting assembly 3 includes a combustion-supporting air pipe 31, and the air outlet end of the combustion-supporting air pipe 31 is located between the inner wall of the combustion chamber 13 and the combustion diffusion section 152.
In this embodiment, the fire extinguishing assembly 7 includes a fire extinguishing pipe 72 and a fire extinguishing air inlet pipe 71, which are communicated with each other, a plurality of nozzles 73 are disposed on the fire extinguishing pipe 72, the fire extinguishing pipe 72 is connected with the combustion chamber 13, and the fire extinguishing pipe 72 is close to the combustion diffusion section 152.
In this embodiment, the specific operation flow is as follows: firstly, a burner is installed in place, then a swirler 16 is installed on a swirling section 12, an end cover 11 is connected with the swirling section 12, a smoke exhaust pipe 41 is connected with an outlet section 14, cooling air is introduced into a cooling air inlet pipe 51 after installation is finished, and the cooling air sequentially passes through a cooling air annular pipe 52, a cooling air pipe 53 and a cooling air outlet ring pipe 54; and a cooling air outlet duct 55. In the process of introducing the cooling air, the cooling air can be blown to the combustion chamber 13 through the air pipe 21 of the fuel assembly 2, the air is discharged through the smoke discharge pipe 41 until the air is stable, then the hydrogen 22/natural gas mixed fuel is introduced, and after the fuel and the air are fully mixed through the swirler 16, a combustion test is carried out. An igniter (not shown) is started to ignite the air and hydrogen 22/natural gas mixed fuel, the fuel is firstly combusted in the combustion convergence section 151, unburned fuel enters the combustion diffusion section 152 to be subjected to diffusion combustion, and part of the fuel is diffused to the space between the two sections of the combustion piece 15 and the combustion chamber 13 through diffusion holes 153 to be combusted. During the period, the combustion air can enter the combustion chamber 13 in two ways through the combustion air pipe 31 to carry out the air-supplementing combustion test. The flue gas generated by the combustion is discharged through the smoke discharge pipe 41.
During the test, the air and hydrogen 22/natural gas mixing ratio can be adjusted to carry out combustion tests with different proportions. The combustion test under different combustion-supporting air can be carried out by adjusting the combustion-supporting air quantity.
During the test, cooling air can carry out the heat transfer to the combustion chamber, cooling combustion chamber. During the test, cooling tests with different air flow rates and flow rates can be carried out.
During the test, if the temperature of the air outlet is too high, cooling water can be fed to cool the combustion chamber 13.
During the test, if an emergency occurs, carbon dioxide can be introduced through the fire extinguishing air inlet pipe 71, and the carbon dioxide flows through the fire extinguishing circular pipe 72 and is sprayed out through the nozzle 73 to perform emergency fire extinguishing.
After the test is completed, the combustion chamber 13 is cooled by continuing to introduce water and air. At the same time, the hydrogen 22/natural gas feed is stopped and the purging of the interior of the combustion chamber 13 with air is continued. Meanwhile, the air can be blown and swept through the combustion air pipe 31, and the blown and swept air is discharged through the smoke exhaust pipe 41.
The hydrogen mixed combustion test device for the park flexibility improved unit has the beneficial effects that: two sections of combustion pieces 15 are arranged, so that the sectional combustion can be realized; the combustion-supporting component 3 is arranged, so that high-efficiency combustion can be simulated; the cooling assembly is arranged to realize cooling of the combustion structure and guarantee continuation of the test; the smoke exhaust component 4 is arranged to exhaust smoke; the fire extinguishing assembly 7 is arranged to realize fire extinguishing and ensure safety.
While the invention has been described with reference to specific embodiments thereof, it will be understood by those skilled in the art that the invention is not limited thereto but is intended to cover all modifications and equivalents as may be included within the spirit and scope of the invention. Any modification which does not depart from the functional and structural principles of the invention is intended to be included within the scope of the following claims.
Claims (10)
1. The utility model provides a unit hydrogen co-combustion test device is reformed transform to garden flexibility which characterized in that: the hydrogen co-combustion test device includes:
the combustion assembly (1) comprises an end cover (11) and a combustor, wherein the combustor is provided with a cyclone section (12), a combustion chamber (13) and an outlet section (14), the end cover (11) is connected with the cyclone section (12), two sections of combustion pieces (15) are arranged in the combustion chamber (13), and the two sections of combustion pieces (15) comprise a front combustion convergence section (151) and a rear combustion diffusion section (152);
a fuel assembly (2) disposed on the end cover (11) and providing a hydrogen/natural gas mixture (22) and air to the combustion chamber (13);
a comburent assembly (3) for supplementing air to said combustion chamber (13);
a smoke evacuation assembly (4) comprising a smoke evacuation duct (41) connected to the outlet section (14);
the cooling assembly comprises a water cooling assembly (6) and an air cooling assembly (5);
and the fire extinguishing assembly (7) sprays carbon dioxide into the combustion chamber (13).
2. The park flexibility modified unit hydrogen co-combustion test device of claim 1, characterized in that: the front end of the combustion convergence section (151) is connected with the inner wall of the combustion chamber (13) into a whole, and the rear part is separated; the front end of the combustion diffusion section (152) is separated from the inner wall of the combustion chamber (13), and the rear end of the combustion diffusion section is connected into a whole.
3. The park flexibility modified unit hydrogen co-combustion test device according to claim 2, characterized in that: the combustion chamber (13) is of an arc-shaped structure, the middle of the combustion chamber is large, and the two ends of the combustion chamber are small; the combustion convergence section (151) is of an arc-shaped structure, and the middle of the combustion convergence section is large, and the two ends of the combustion convergence section are small; the combustion diffusion section (152) comprises an arc-shaped section and a flaring section, wherein the middle of the arc-shaped section is large, and the two ends of the arc-shaped section are small.
4. The park flexibility modification unit hydrogen co-combustion test device according to claim 2, characterized in that: the combustion diffusion section (152) is provided with diffusion holes (153); a swirler (16) is arranged in the swirling section (12), and the swirler (16) is positioned at the front end of the swirling section (12).
5. The park flexibility modified unit hydrogen co-combustion test device of claim 1, characterized in that: the fuel assembly (2) comprises an air pipe (21) and a hydrogen/natural gas mixed gas (22) which are welded on the end cover (11), the hydrogen/natural gas mixed gas (22) is located in the center of the end cover (11), and the air pipe (21) is at least two and uniformly distributed.
6. The park flexibility modified unit hydrogen co-combustion test device of claim 1, characterized in that: the end cover (11) is provided with internal threads, the cyclone section (12) is provided with external threads, and the end cover (11) is in threaded connection with the cyclone section (12); the outlet section (14) is provided with an internal thread, the smoke exhaust pipe (41) is provided with an external thread, and the outlet section (14) and the smoke exhaust pipe (41) are in threaded connection; the smoke exhaust pipe (41) is L-shaped.
7. The park flexibility modified unit hydrogen co-combustion test device of claim 1, characterized in that: the combustion-supporting assembly (3) comprises a combustion-supporting air pipe (31), and the air outlet end of the combustion-supporting air pipe (31) is positioned between the inner wall of the combustion chamber (13) and the combustion diffusion section (152); the fire extinguishing assembly (7) comprises a fire extinguishing circular pipe (72) and a fire extinguishing air inlet pipe (71) which are communicated, a plurality of nozzles (73) are arranged on the fire extinguishing circular pipe (72), the fire extinguishing circular pipe (72) and the combustion chamber (13) are connected into a whole, and the fire extinguishing circular pipe (72) is close to the combustion diffusion section (152).
8. The park flexibility modified unit hydrogen co-combustion test device of claim 1, characterized in that: the air cooling assembly (5) is arranged between the combustion chamber (13) and the water cooling assembly (6); the air inlet end of the air cooling assembly (5) is positioned at the outlet section (14), and the air outlet end of the air cooling assembly is positioned at the rotational flow section (12); the water inlet end of the water cooling component (6) is located at the outlet section (14), and the water outlet end of the water cooling component is located at the rotational flow section (12).
9. The park flexibility modified unit hydrogen co-combustion test device of claim 8, characterized in that: the air cooling assembly (5) comprises a cooling air inlet pipe (51), a cooling air annular pipe (52), cooling air pipes (53) (21), a cooling air outlet ring pipe (54) and a cooling air outlet pipe (55), wherein the cooling air annular pipe (52) is positioned at the outlet section (14), the cooling air outlet ring pipe (54) is positioned at the rotational flow section (12), the cooling air pipes (53) (21) are positioned at the outer side of the combustion chamber (13), the combustor comprises a water flow channel piece (63) positioned at the outer side of the combustion chamber (13), a water flow channel is formed in the water flow channel piece (63), and a gap for installing the air pipes (21) is formed between the water flow channel and the combustion chamber (13).
10. The park flexibility modified unit hydrogen co-combustion test device of claim 9, characterized in that: the water cooling assembly (6) comprises a cooling water inlet pipe (61), a cooling water inlet ring pipe (62), a cooling water outlet ring pipe (64) and a cooling water outlet pipe (65), which are communicated with the water flow channel, wherein the cooling water inlet pipe (61) is higher than the cooling water outlet pipe (65); the cooling air outlet pipe (55) is higher than the cooling air inlet pipe (51).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111610883.4A CN114486273A (en) | 2021-12-27 | 2021-12-27 | Park flexibility reforms transform unit hydrogen and burns test device thoughtlessly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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