CN115372541A - Experimental device for be used for ammonia efflux flame research - Google Patents
Experimental device for be used for ammonia efflux flame research Download PDFInfo
- Publication number
- CN115372541A CN115372541A CN202211290965.XA CN202211290965A CN115372541A CN 115372541 A CN115372541 A CN 115372541A CN 202211290965 A CN202211290965 A CN 202211290965A CN 115372541 A CN115372541 A CN 115372541A
- Authority
- CN
- China
- Prior art keywords
- ammonia
- jet
- ammonia gas
- pressure
- gas supply
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- 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
Landscapes
- Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Physics & Mathematics (AREA)
- Combustion & Propulsion (AREA)
- Molecular Biology (AREA)
- Engineering & Computer Science (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)
Abstract
The invention discloses an experimental device for researching ammonia jet flame, which relates to the technical field of experimental devices for researching flame, and comprises the following components: the ammonia gas purification device comprises a liquid ammonia gas supply system for providing ammonia gas for the experimental device, a nitrogen purging system for removing residual ammonia gas in a pipeline, a buffer system for caching and controlling pressure of the ammonia gas, a jet system for controlling the jet direction of the ammonia gas and discharging the residual ammonia gas in the experimental device, an ignition system, a measuring system for collecting experimental data and a water spraying system for absorbing the residual ammonia gas in the environment. The experimental device for researching the ammonia jet flame integrates the functions of measuring the temperature of the ammonia combustion flame, measuring the thermal radiation of the ammonia combustion flame, measuring the concentration of the ammonia and measuring the shape of the ammonia combustion flame, can be used for developing ammonia combustion experiments in different jet directions, and can adjust the pressure of the ammonia in the buffer system and the jet caliber of the jet system so as to adapt to actual working conditions and develop the ammonia combustion experiments under different working conditions.
Description
Technical Field
The invention relates to the technical field of experimental devices for flame research, in particular to an experimental device for ammonia jet flame research.
Background
Fossil fuel combustion brings about a serious greenhouse effect, and in order to solve environmental problems and achieve carbon neutralization, countries in the world are actively seeking clean and efficient new energy sources to replace fossil fuels. Although hydrogen energy has many advantages of no pollution, high combustion heat value, no pollution and the like, the hydrogen energy is difficult to store and transport, and the development of the hydrogen energy is greatly limited. High-density storage of hydrogen requires high pressure of about 70MPa, which requires expensive carbon fiber, and if liquefied storage is adopted, the temperature needs to be reduced to-253 ℃, which consumes a large amount of energy, and the cost is very high, and hydrogen is easy to leak and is very easy to explode after being mixed with air.
Thus, ammonia energy enters the field of view, and it is desirable to replace fuel from power plants and ships with ammonia, and carbon neutralization is achieved at lower cost by virtue of combustion technology breakthrough. Ammonia gas is composed of one nitrogen atom and three hydrogen atoms and is a natural hydrogen storage medium. The requirement for liquefying the ammonia gas is very low, the ammonia gas can be liquefied only by reducing the temperature to-33 ℃ under the normal pressure state or pressurizing to more than 0.85MPa under the normal temperature condition (20 ℃), and the ammonia gas has low storage requirement and is safe and reliable. At present, more than eighty percent of ammonia is used for producing fertilizers globally, so that the ammonia per se has a complete trade and transportation system. The storage difficulty and the transportation cost of the ammonia gas are far lower than those of the hydrogen gas, so that the existing hydrogen gas preparation process can be modified and converted into the preparation of the ammonia gas. The existing green hydrogen production technology is mainly used for electrolyzing water by utilizing electric energy which cannot be stably supplied, such as wind power generation, solar power generation and the like, so as to generate hydrogen and oxygen, and thus, the hydrogen and the oxygen are stored in a hydrogen form under the condition that the electric energy cannot be connected to the grid, and the purpose of storing energy is achieved. However, the storage and transportation costs are high due to the difficulty in storing hydrogen, and if hydrogen generated by electrolyzing water is converted into ammonia gas through an ammonia synthesis process and then liquefied and transported to a destination, the storage and transportation costs can be greatly reduced.
Currently, research on ammonia energy is still in the beginning. Generally, after the liquid ammonia is transported to a destination, two main ways are used, namely, the liquid ammonia is converted into hydrogen for use, but the energy is wasted, and meanwhile, a large-capacity hydrogen storage device is needed; secondly, the ammonia gas is directly used as fuel for combustion, which is also the main direction of the research at home and abroad at present. The experiment of burning ammonia gas in a gas turbine has been carried out by professor xiaolinxizhu at northeast university of japan, and an attempt to drive a large-sized gas turbine facility with ammonia gas as a power source has been made. Because the ignition temperature of ammonia gas is high (651.1 ℃), if ammonia is directly used as fuel, the defect that ammonia gas is not easy to combust needs to be overcome. The products of ammonia combustion are nitrogen and water, which do not cause carbon emission, but ammonia gas has a lower combustion rate than hydrogen gas and a lower combustion heat than hydrogen gas and natural gas, and it is difficult to ignite and continuously and stably combust the ammonia gas. The research on the flame characteristics of ammonia combustion is rarely reported. In addition, because ammonia gas is toxic, once the ammonia gas is diffused in the air, the ammonia gas can cause damage to the skin, eyes, respiratory tract and the like of people, and a large amount of ammonia gas can be even fatal when the ammonia gas is inhaled, so that the damage to people caused by the leakage and diffusion of the ammonia gas also needs to be fully considered when the ammonia gas combustion experiment is carried out.
In order to use ammonia as an energy source, the energy released by ammonia combustion under different combustion conditions, the combustible concentration range, combustion products, the proportion of combustion heat converted into radiation, the temperature of flame, the stable combustion condition and the like need to be fully known, so that the combustion efficiency is effectively improved, unnecessary radiation loss is reduced, and the generation of harmful gases such as nitrogen oxides and the like is inhibited. At present, the study on the combustion characteristics of ammonia gas at home and abroad is insufficient, and the temperature characteristics and radiation distribution of ammonia gas combustion flame are not known very much. Along with the popularization of ammonia energy technology, the scientific research field needs a set of experimental apparatus that can study ammonia gas burning flame, develops relevant experimental study and solves the key technical problem that ammonia gas stable combustion and leakage risk aassessment.
Disclosure of Invention
In order to overcome the defects in the prior art, the invention provides an experimental device for researching ammonia jet flames, which can simulate actual working conditions, carry out ammonia combustion experiments under different working conditions, and acquire ammonia combustion flame data for researching ammonia combustion characteristics.
In order to achieve the purpose, the invention adopts the following technical scheme that:
an experimental apparatus for ammonia jet flame research, the experimental apparatus includes:
a liquid ammonia gas supply system for supplying ammonia gas;
the buffer system is connected with the liquid ammonia gas supply system and is used for caching the ammonia gas output by the liquid ammonia gas supply system;
the jet system is connected with the buffer system and is used for ejecting the ammonia gas buffered in the buffer system outwards and controlling the jet direction of the ammonia gas;
the ignition system is used for igniting the ammonia gas injected by the jet system to form an ammonia gas combustion flame;
and the data measurement system is used for acquiring ammonia combustion flame data.
Preferably, the buffer system comprises a pressure regulating valve, a pressure tapping pipe and a buffer tank;
the pressure regulating valve is arranged on an air inlet pipeline of the buffer tank, the pressure in the buffer tank is obtained through a pressure sampling pipe, and the air inlet flow of the buffer tank is controlled according to the pressure in the buffer tank; if the pressure in the buffer tank is higher than a preset value, the pressure regulating valve reduces the air inlet flow; if the pressure in the buffer tank is lower than a preset value, the pressure regulating valve increases the air inlet flow.
Preferably, the jet system comprises a jet branch pipe, a first electromagnetic valve, a rotary joint and an ammonia nozzle;
the gas outlet pipeline of the buffer system is connected with the input end of the jet branch pipe; the output end of the jet branch pipe is sequentially connected with a rotary joint and an ammonia nozzle along the gas transmission direction, and the rotary joint is used for controlling the outlet direction of the ammonia nozzle, namely controlling the ammonia jet direction; the outlet aperture of the ammonia nozzle is adjustable and is used for spraying ammonia with different jet flow apertures; and a first electromagnetic valve is arranged on the jet branch pipe.
Preferably, the fluidic system further comprises a blow down manifold;
the air outlet pipeline of the buffer system is respectively connected with the input end of the jet branch pipe and the input end of the emptying branch pipe through a second tee joint; the output end of the emptying branch pipe is sequentially connected with a primary water tank, a water tank connecting pipe, a secondary water tank, a discharge pipe, a third tee joint and an emptying valve along the gas transmission direction; the output end of the emptying branch pipe is inserted into the bottom of the first-stage water tank; the spare part at the top of the primary water tank is communicated to the bottom of the secondary water tank through a water tank connecting pipe; the input end of the discharge pipe is inserted into the vacant part at the top of the secondary water tank; the output end of the discharge pipe is respectively connected with an emptying valve and a pipeline ammonia concentration sensor through a third tee joint; the emptying branch pipe is provided with a second electromagnetic valve;
the emptying branch pipe is used for discharging ammonia in the experimental device, and the discharged ammonia is dissolved by utilizing the primary water tank and the secondary water tank.
Preferably, the liquid ammonia gas supply system comprises a liquid ammonia gas supply cylinder group, an ammonia gas supply pipe, a first stop valve, a first pressure reducing valve and a first one-way valve which are sequentially connected along the gas transmission direction; the liquid ammonia storage pressure in the liquid ammonia gas supply cylinder group is higher than the liquefaction pressure of ammonia under the normal temperature condition, and after the first stop valve is opened, the liquid ammonia in the liquid ammonia gas supply cylinder group expands and vaporizes, and the ammonia is output through the ammonia gas supply pipe, the first stop valve, the first reducing valve and the first check valve in sequence.
Preferably, the ignition system comprises a methane gas supply cylinder group and an electric spark igniter;
the methane gas supply cylinder group is connected with the input end of a methane gas supply pipe, and the output end of the methane gas supply pipe is sequentially connected with a third stop valve, a third pressure reducing valve, a third one-way valve and a methane nozzle along the gas transmission direction and used for spraying methane; the electric spark igniter is used for igniting methane sprayed from the methane nozzle to form methane spray fire and igniting ammonia sprayed from the jet system.
Preferably, the data measurement system includes:
the pressure sensor and the temperature sensor are connected with the buffer system and are respectively used for measuring the pressure and the temperature of the ammonia gas cached in the buffer system;
the thermocouples are arranged along the axis of the ammonia gas jet flow and are used for measuring the temperature of the ammonia gas combustion flame;
the radiant heat flow meters are positioned beside the ammonia combustion flame and arranged in parallel to the axial direction of the ammonia jet flow, and are used for measuring the heat radiation of the ammonia combustion flame;
a spatial ammonia concentration sensor disposed in the environment for measuring a concentration of ammonia gas in the environment;
the camera is arranged beside the ammonia combustion flame, and the shooting direction of the camera is perpendicular to the ammonia jet flow direction and is used for shooting the form of the ammonia combustion flame.
Preferably, the experimental apparatus further comprises: a nitrogen purge system for providing nitrogen; the output end of the nitrogen purging system is connected with the output end of the liquid ammonia gas supply system through a first tee joint and then connected with the buffer system through a gas transmission pipe;
the nitrogen purging system comprises a nitrogen gas supply cylinder group, a nitrogen gas supply pipe, a second stop valve, a second pressure reducing valve and a second one-way valve which are sequentially connected along the gas transmission direction; liquid ammonia gas supply system and nitrogen purging system open not simultaneously, and liquid ammonia gas supply system opens in the experimentation, and the nitrogen purging system closes, and liquid ammonia gas supply system closes after the experiment finishes, and the nitrogen purging system opens, utilizes nitrogen gas to sweep remaining ammonia in the experimental apparatus.
Preferably, the experimental apparatus further comprises: a water spray system for absorbing ammonia gas from the environment; the water spraying system comprises a spraying water tank, a quantitative water pump, a water delivery pipe and a spraying rack arranged around an experimental area; the quantitative water pump conveys water stored in the spray water tank to the spray rack through the water conveying pipe, and the spray rack sprays water around the experiment area and is used for isolating and dissolving residual ammonia in the environment of the experiment area.
Preferably, after the pressure of the ammonia gas in the buffer system reaches a preset value, the jet system sprays the ammonia gas buffered in the buffer system outwards, the flow of the ammonia gas input into the buffer system is maintained in the spraying process, the pressure of the ammonia gas in the buffer system is constant, the ammonia gas sprayed by the jet system is ignited by the ignition system, and an ammonia gas constant-pressure jet combustion experiment is carried out;
or after the pressure of the ammonia gas in the buffer system reaches a preset value, the jet system sprays the ammonia gas buffered in the buffer system outwards, the ammonia gas is stopped from being input into the buffer system in the spraying process, and the ignition system is utilized to ignite the ammonia gas sprayed by the jet system to carry out the combustion experiment of the ammonia gas discharge jet.
The invention has the advantages that:
(1) The invention provides an experimental device for researching ammonia jet flame, which can simulate actual working conditions, carry out ammonia combustion experiments under different working conditions, and collect ammonia combustion flame data for researching ammonia combustion characteristics.
(2) The experimental device for researching the ammonia jet flame integrates the functions of measuring the temperature of the ammonia combustion flame, measuring the thermal radiation of the ammonia combustion flame, measuring the concentration of the ammonia and measuring the shape of the ammonia combustion flame, can be used for developing ammonia combustion experiments in different jet directions, and can adjust the pressure of the ammonia in the buffer system and the jet caliber of the jet system to adapt to actual working conditions.
(3) The storage pressure in the liquid ammonia gas supply cylinder group is higher than the liquefaction pressure of ammonia gas under the normal temperature condition, if the storage pressure is respectively 1.5MPa and 0.85MPa, the ammonia gas in the liquid ammonia gas supply cylinder group is in a liquid state and is the same as the storage working condition of the ammonia gas under the actual condition, after the first stop valve is opened, the liquid ammonia is rapidly expanded and vaporized, the formed ammonia gas flows to the buffer system for buffering so as to adjust the pressure, and then the subsequent ammonia gas combustion experiment is carried out.
(4) The experimental device is provided with a nitrogen purging system, the liquid ammonia gas supply system and the nitrogen purging system are connected with the first tee joint together, then gas is supplied to the downstream direction through the first tee joint connecting gas pipe, the liquid ammonia gas supply system is started, and the nitrogen purging system is closed in the experimental process; after the experiment is finished, the liquid ammonia gas supply system is closed, and the nitrogen purging system is opened, so that the residual ammonia in the pipeline of the experimental device is purged.
(5) The buffer system is used for buffering ammonia, the ammonia pressure is adjusted, and the ammonia combustion experiment under different pressure conditions can be realized.
(6) The jet system provided by the invention changes the jet direction of the ammonia nozzle by using the rotary joint, is used for developing ammonia combustion experiments in different jet directions, and is adjustable in outlet caliber and used for developing ammonia combustion experiments in different jet calibers.
(7) The jet system is also provided with an emptying branch pipe for discharging residual ammonia in the pipeline of the experimental device, and in order to avoid poisoning of personnel caused by ammonia, the output end of the emptying branch pipe is inserted into the bottom of the primary water tank and is used for dissolving ammonia to be discharged; the top spare part of one-level water tank communicates to second grade water tank bottom through the water tank connecting pipe for dissolve the ammonia of complete dissolution in the one-level water tank, in order to avoid causing harm to experimenter and environment.
(8) The ignition system of the invention ignites the ammonia gas by using methane injection fire, and is convenient and controllable.
(9) The measuring system integrates the functions of measuring the temperature of the ammonia combustion flame, measuring the thermal radiation of the ammonia combustion flame, measuring the shape of the ammonia combustion flame and measuring the concentration of the ammonia, comprehensively collects the data of the ammonia combustion flame and is beneficial to the comprehensive research on the ammonia combustion characteristics.
(10) The water spraying system is arranged around the experiment area, so that residual ammonia gas in the experiment area can be isolated and dissolved, and the harm to experimenters and the environment is reduced.
(11) The invention can utilize the experimental device to carry out the combustion experiment of the ammonia constant pressure jet flow and the combustion experiment of the ammonia depressurization jet flow, namely the ammonia discharge jet flow.
(12) The invention can also be used for researching the ammonia concentration field and the diffusion speed formed after ammonia leaks from the ammonia nozzle into air and is diffused under the condition that a methane ignition system is not used for ignition, and the ammonia concentration field and the diffusion speed are used for evaluating the danger range formed by liquid ammonia leakage and providing technical support for the safe storage of liquid ammonia.
Drawings
FIG. 1 is a block diagram of the present invention.
Fig. 2 is a structural view of a liquid ammonia supply system according to the present invention.
FIG. 3 is a block diagram of a nitrogen purge system of the present invention.
FIG. 4 is a diagram of a buffering system according to the present invention.
Fig. 5 is a block diagram of a fluidic system of the present invention.
Fig. 6 is a structural view of an ignition system of the present invention.
FIG. 7 is a block diagram of a data measurement system of the present invention.
FIG. 8 is a block diagram of the water spray system of the present invention.
Fig. 9 is a block diagram of the spray rack of the present invention.
Fig. 10 is a structural view of the shower of the present invention.
Fig. 11 is a structural view of the support frame of the present invention.
FIG. 12 is a view showing the structure of a sector nozzle of the present invention.
Description of the reference numerals:
1-a liquid ammonia gas supply system, 11-a liquid ammonia gas supply cylinder group, 12-an ammonia gas supply pipe, 13-a first stop valve, 14-a first pressure reducing valve, 15-a first one-way valve, 16-a first three-way pipe and 17-an ammonia gas delivery pipe;
2-a nitrogen purging system, 21-a nitrogen gas supply cylinder group, 22-a nitrogen gas supply pipe, 23-a second stop valve, 24-a second pressure reducing valve and 25-a second one-way valve;
3-a buffer system, 31-a pressure regulating valve, 32-a pressure sampling pipe and 33-a buffer tank;
4-jet system, 41-buffer tank air outlet pipe, 42-second tee joint, 43-jet branch pipe, 44-first electromagnetic valve, 45-rotary joint, 46-ammonia nozzle, 47-emptying branch pipe, 48-second electromagnetic valve, 49-primary water tank, 410-connecting pipe, 411-secondary water tank, 412-discharging pipe, 413-third tee joint and 414-emptying valve;
5-ignition system, 51-methane gas supply cylinder group, 52-methane gas supply pipe, 53-third stop valve, 54-third pressure reducing valve, 55-third one-way valve, 56-methane nozzle and 57-electric spark igniter;
6-data measurement system, 61-pressure sensor, 62-temperature sensor, 63-thermocouple, 64-bolometer, 65-pipeline ammonia concentration sensor, 66-space ammonia concentration sensor, 67-camera, 68-oscilloscope, 69-computer;
7-water spraying system, 71-spraying water tank, 72-quantitative water pump, 73-water supply pipe, 74-spraying rack, 741-spraying pipe, 742-supporting frame, 743-sector nozzle, 7412-water pipe, 7412-90-degree elbow, 7413-water inlet joint, 7414-water outlet joint, 7421-bottom plate, 7422-supporting rod and 7423-U-shaped groove.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
As shown in fig. 1, the experimental apparatus for ammonia jet flame research described in this embodiment includes a liquid ammonia gas supply system 1, a nitrogen purging system 2, a buffer system 3, a jet system 4, an ignition system 5, a data measurement system 6, and a water spray system 7.
As shown in fig. 2, the liquid ammonia gas supply system 1 includes a liquid ammonia gas supply cylinder group 11, an ammonia gas supply pipe 12, a first stop valve 13, a first pressure reducing valve 14, and a first check valve 15, which are connected in sequence along a gas transmission direction. The storage pressure in the liquid ammonia gas supply cylinder group 11 is 1.5MPa, which is higher than the liquefaction pressure of ammonia gas by 0.85MPa under the normal temperature condition, at this time, the ammonia gas in the liquid ammonia gas supply cylinder group 11 is in a liquid state, which is the same as the storage working condition of the ammonia gas under the actual condition, after the first stop valve 13 is opened, the liquid ammonia is rapidly expanded and vaporized, and flows out to the gas pipe 17 through the ammonia gas supply pipe 12, the first stop valve 13, the first pressure reducing valve 14, the first check valve 15 and the first tee joint 16 in sequence.
As shown in fig. 3, the nitrogen purging system 2 includes a nitrogen gas supply cylinder group 21, a nitrogen gas supply pipe 22, a second stop valve 23, a second pressure reducing valve 24, and a second check valve 25, which are connected in sequence along the gas transmission direction. The output of second check valve 25 is connected first tee bend 16 with the output of first check valve 15, promptly liquid ammonia gas supply system 1 with first tee bend 16 is connected together to nitrogen sweep system 2, later is connected the gas-supply pipe 17 by first tee bend 16 and is supplied air downstream.
The liquid ammonia gas supply system 1 and the nitrogen purging system 2 are not started at the same time, the liquid ammonia gas supply system 1 is started to keep smooth in the experimental process, and the nitrogen purging system 2 is closed; after the experiment is finished, the liquid ammonia gas supply system 1 is closed, and the nitrogen purging system 2 is opened, so that the residual ammonia gas in the pipeline of the experimental device is purged.
As shown in fig. 4, the buffer system 3 includes a self-operated pressure regulating valve 31, a pressure sampling pipe 32, and a buffer tank 33; the pressure regulating valve 31 is connected with the buffer tank 33 through a gas pipe 17; the pressure regulating valve 31 has an automatic pressure regulating function, and obtains the pressure in the buffer tank 33 through the pressure sampling pipe 32 to be used as a control signal, so that the flow of the ammonia gas is regulated; the pressure regulating valve 31 can automatically reduce the intake air flow rate of the buffer tank 33 when the pressure in the buffer tank 33 is higher than a preset value, whereas the pressure regulating valve 31 can automatically increase the intake air flow rate of the buffer tank 33 when the pressure in the buffer tank 33 is lower than the preset value.
As shown in fig. 5, the jet system 4 includes a buffer tank air outlet pipe 41, a second tee joint 42, a jet branch pipe 43, a first solenoid valve 44, a rotary joint 45, an ammonia gas nozzle 46, an air release branch pipe 47, a second solenoid valve 48, a primary water tank 49, a water tank connecting pipe 410, a secondary water tank 411, a discharge pipe 412, a third tee joint 413 and an air release valve 414.
The buffer tank 33 is connected with a second tee joint 42 through a buffer tank air outlet pipe 41, and the buffer tank air outlet pipe 41 is respectively connected with the input end of the jet branch pipe 43 and the input end of the emptying branch pipe 47 through the second tee joint 42; the output end of the jet branch pipe 43 is sequentially connected with a first electromagnetic valve 44, a rotary joint 45 and an ammonia nozzle 46; the output end of the emptying branch pipe 47 is sequentially connected with a second electromagnetic valve 48, a primary water tank 49, a water tank connecting pipe 410, a secondary water tank 411, a discharge pipe 412, a third tee 413 and an emptying valve 414.
The jet branch pipe 43 is a jet passage of ammonia gas in the experimental process, the ammonia gas flows out of the buffer tank 33, enters the jet branch pipe 3 through the second tee joint 42 and finally enters the atmosphere through the ammonia gas nozzle 46; the rotary joint 45 can change the jet direction of the ammonia nozzle 46 through rotation for developing ammonia jet combustion experiments in different directions, and the caliber of the ammonia nozzle can be adjusted or the ammonia nozzle can be replaced for developing ammonia combustion experiments in different jet calibers.
The emptying branch pipe 47 is used for discharging residual ammonia gas in the pipeline of the experimental device, and in order to avoid poisoning of personnel caused by the ammonia gas, the output end of the emptying branch pipe 47 is inserted into the bottom of the primary water tank 49 and used for dissolving the ammonia gas to be discharged; the vacant part at the top of the primary water tank 49 is communicated to the bottom of the secondary water tank 411 through a water tank connecting pipe 410 and is used for dissolving the ammonia gas which is not completely dissolved in the primary water tank so as to avoid causing harm to experimenters and environment; the input end of the discharge pipe 412 is inserted into the top vacant part of the secondary water tank 411; the output end of the discharge pipe 412 is connected with the atmospheric valve 414 and the pipeline ammonia concentration sensor 65 through a third tee 413 respectively.
As shown in fig. 6, the ignition system 5 includes a methane gas supply cylinder group 51, a methane gas supply pipe 52, a third shutoff valve 53, a third pressure reducing valve 54, a third check valve 55, a methane nozzle 56, and an electric spark igniter 57. The methane gas supply pipe 52 is led out from the methane gas supply cylinder group 51 and then is sequentially connected with a third stop valve 53, a third pressure reducing valve 54, a third one-way valve 55 and a methane nozzle 56 along the gas transmission direction; the methane from the methane nozzle 56 is ignited by an electric spark igniter 57 to form a methane fire for igniting the ammonia gas from the ammonia gas nozzle 46 of the jet system 4.
As shown in fig. 7, the measurement system 6 includes a screw-type pressure sensor 61, a screw-type temperature sensor 62, a thermocouple 63, a bolometer 64, a line ammonia concentration sensor 65, a space ammonia concentration sensor 66, a camera 67, an oscilloscope 68, and a computer 69.
The screw thread type pressure sensor 61 and the screw thread type temperature sensor 62 are arranged on the buffer tank 33 and are used for measuring the pressure and the temperature of the ammonia gas in the buffer tank 33; the thermocouples 63 are arranged along the ammonia gas jet axis and are used for measuring the temperature of the ammonia gas combustion flame; the plurality of radiant heat flow meters 64 are positioned beside the ammonia combustion flame and are arranged in parallel to the axial direction of the ammonia jet flow, and are used for measuring the heat radiation of the ammonia combustion flame; the pipeline ammonia concentration sensor 65 is arranged on the discharge pipe 412 of the secondary water tank 411 and is used for evaluating the dissolving effect of the primary water tank 49 and the secondary water tank 411 on ammonia gas; the spatial ammonia concentration sensor 66 is arranged in the environment and is positioned at the periphery of the water spraying system 7 and used for monitoring the ammonia concentration in the environment and ensuring that the ammonia concentration discharged into the environment is less than a safe value; the camera 67 is arranged on the side surface of the ammonia gas nozzle 46, and the shooting direction of the camera 67 is vertical to the ammonia gas jet flow direction and is used for shooting the form of the ammonia gas combustion flame; the signals collected by all the sensors are connected to an oscilloscope 68 and finally collected to a computer 69.
As shown in fig. 8, the water spray system includes a spray water tank 71, a constant water pump 72, a water supply pipe 73, and a spray stand 74. The quantitative water pump 72 conveys water stored in the spray water tank 71 to the spray rack 74 through the water conveying pipe 73, so that water is sprayed around an experimental area, residual ammonia gas in the experimental area is isolated and dissolved, and the harm to experimenters and the environment is reduced.
As shown in fig. 9, the shower stand 74 includes a shower pipe 741, support frames 742, and fan nozzles 743, the shower pipe 741 is supported by 8 support frames 742, and the fan nozzles 743 are installed below the shower pipe 741.
As shown in fig. 10, the spray pipe 741 includes a water pipe 7411, 90 ° elbows 7412, a water inlet joint 7413 and a water outlet joint 7414, the spray pipe 741 is a rectangular structure integrally, and is formed by splicing four water pipes 7411, and four corners of the spray pipe 741 are welded with the four water pipes 7411 by using 4 90 ° elbows 7412; the water inlet joint 7413 is fixed at two diagonal positions above the spray pipe 741 by welding and is used for connecting a water supply pipe; the water outlet joint 7414 is fixed below the water pipe and used for water discharging and spraying.
As shown in fig. 11, the supporting frame 742 comprises a bottom plate 7421, a supporting rod 7422 and a U-shaped groove 7423; the bottom plate 7421 and the support rod 7422 are connected by fillet welding; the U-shaped groove 7423 is fixed at the top of the support rod 7422 and is connected by welding; the support frame 742 is used for supporting the spray pipe 741, and the spray pipe 741 is limited by the U-shaped groove 7423. The left view in fig. 11 is a side view of the support frame 742, the middle view in fig. 11 is a front view of the support frame 742, and the right view in fig. 11 is a perspective view of the support frame 742.
As shown in fig. 12, the water flow channel of the fan nozzle 743 is divided into a first flow channel and a second flow channel, the water inlet of the first flow channel is the water inlet of the fan nozzle 743 and is communicated with the water outlet of the water pipe 7411, the water outlet of the first flow channel is communicated with the water inlet of the second flow channel, and the water outlet of the second flow channel is the water outlet of the fan nozzle 743; the sectional area of the water inlet of the first flow channel is larger than that of the water outlet of the first flow channel, the sectional area of the water outlet of the first flow channel is equal to that of the water inlet of the second flow channel, and the sectional area of the water inlet of the second flow channel is smaller than that of the water outlet of the second flow channel. The left view in fig. 12 isbase:Sub>A front view of the fan nozzle 743, the center view in fig. 12 isbase:Sub>A sectional view of the fan nozzle 743 taken along the linebase:Sub>A-base:Sub>A, and the right view in fig. 12 isbase:Sub>A perspective view of the fan nozzle 743.
Example 2
The embodiment discloses the operation steps of developing an ammonia constant pressure jet combustion experiment by using the experimental device for ammonia jet flame research provided in the embodiment 1:
s1, setting an air pipeline:
the first stop valve 13 on the ammonia gas supply pipe 12 is opened, and the second stop valve 23 on the nitrogen gas supply pipe 22 is closed; setting a preset pressure value of the self-operated pressure regulating valve 31 according to the pressure requirement of the experiment; closing the first electromagnetic valve 44 on the jet branch pipe 43 to ensure that the ammonia gas does not leak from the ammonia gas nozzle 46 before the formal start of the experiment; opening a second electromagnetic valve 48 on the emptying branch pipe 47 to ensure that the emptying branch pipe 47 is kept unblocked, wherein in the initial stage of the experiment, the pressure and the temperature of ammonia gas in the buffer tank 33 do not meet the experimental requirements, and at the moment, the ammonia gas is injected into the primary water tank 49 and the secondary water tank 411 through the emptying branch pipe 47 to be dissolved, so that the harm to personnel is avoided; adjusting a rotary joint 45 connected to the jet branch pipe 43 to enable the direction of the ammonia nozzle 46 to meet the experimental requirements;
s2, setting a water pipeline:
filling the primary water tank 49, the secondary water tank 411 and the spray water tank 71 with water, starting the quantitative water pump 72, pumping the water in the spray water tank 71 to the spray rack 74, and performing spray protection on the periphery of the experimental area;
s3, opening the data measurement system 6:
starting a threaded pressure sensor 61 and a threaded temperature sensor 62, and monitoring and recording the pressure and the temperature in the buffer tank 33; starting a thermocouple 63 and a radiant heat flow meter 64 for collecting the temperature and the heat radiation of the ammonia combustion flame; a starting pipeline ammonia concentration sensor 65 and a space ammonia concentration sensor 66 for detecting the ammonia gas concentration; turning on the camera 67 for shooting the ammonia combustion flame shape; the oscilloscope 68 and the computer 69 are opened for data collection;
s4, starting the ignition system 5:
opening the third stop valve 53 on the methane gas supply pipe 52; starting the electric spark igniter 57 to make it continuously discharge; opening a third pressure reducing valve 54 to release methane from the methane gas supply cylinder group 51, and finally flowing out through a methane nozzle 56 to be ignited by an electric spark igniter 57 to form a methane jet fire;
s5, pressure regulation and maintenance of ammonia gas:
opening a first stop valve 13 on the ammonia gas supply pipe 12, and then opening a first pressure reducing valve 14 to vaporize and release the liquid ammonia in the liquid ammonia gas supply cylinder group 11; the pressure in the buffer tank 33 continuously rises along with the continuous increase of the flow of the ammonia gas, and when the pressure reaches the preset value of the self-operated pressure regulating valve 31, the pressure regulating valve 31 starts to dynamically regulate the flow on the gas transmission pipe 17, so as to maintain the stable pressure in the buffer tank 33; at this time, the ammonia gas released in the process of adjusting the pressure in the buffer tank 33 to be stable is completely injected into the primary water tank 49 and the secondary water tank 411 through the emptying branch pipe 47 to be dissolved;
s6, ammonia gas ignition:
opening the first solenoid valve 44 and simultaneously closing the second solenoid valve 48, so that the ammonia gas is switched from the emptying branch pipe 47 to the jet branch pipe 43 and is jetted into the atmosphere through the ammonia gas nozzle 46; at this time, in front of the ammonia gas nozzle 46, the methane ignition system 5 is already opened, and the injected ammonia gas meets the methane flame and can be directly ignited;
s7, ending the experiment and purging the pipeline:
closing the first electromagnetic valve 44 to finish ammonia gas release, and simultaneously opening the second electromagnetic valve 48 to ensure that the emptying branch pipe 47 is unblocked and residual ammonia gas is injected into the primary water tank 49; closing the first shut-off valve 13 and the first pressure reducing valve 14 on the ammonia gas supply pipe 12; opening a second stop valve 23 and a second pressure reducing valve 24 on the nitrogen supply pipe 22 to release the nitrogen purging pipeline; all sensors and cameras 67 are turned off.
Example 3
The embodiment discloses an operation step of carrying out an ammonia discharge jet combustion experiment by using the experimental device for ammonia jet flame research provided by the embodiment 1:
s1, setting an air pipeline:
the first stop valve 13 on the ammonia gas supply pipe 12 is opened, and the second stop valve 23 on the nitrogen gas supply pipe 22 is closed; setting a preset pressure value of the self-operated pressure regulating valve 31 according to the pressure requirement of the experiment; the first electromagnetic valve 44 on the jet branch pipe 43 and the second electromagnetic valve 48 on the emptying branch pipe 47 are closed, so that the ammonia gas is prevented from leaking before the formal start of the experiment; adjusting a rotary joint 45 connected to the jet branch pipe 43 to enable the direction of the ammonia nozzle 46 to meet the experimental requirements;
s2, setting a water pipeline:
filling the primary water tank 49, the secondary water tank 411 and the spray water tank 71 with water, starting the quantitative water pump 72, pumping the water in the spray water tank 71 to the spray rack 74, and performing spray protection on the periphery of the experimental area;
s3, opening the data measurement system 6:
starting a screw thread type pressure sensor 61 and a screw thread type temperature sensor 62, and monitoring and recording the pressure and the temperature in the buffer tank 33; starting a thermocouple 63 and a radiant heat flow meter 64 for collecting the temperature and the heat radiation of the ammonia combustion flame; a starting pipeline ammonia concentration sensor 65 and a space ammonia concentration sensor 66 for detecting the ammonia gas concentration; turning on the camera 67 for shooting the ammonia combustion flame shape; the oscilloscope 68 and the computer 69 are opened for data collection;
s5, starting the ignition system 5;
opening the third stop valve 53 on the methane gas supply pipe 52; starting the electric spark igniter 57 to make it continuously discharge; opening a third pressure reducing valve 54 to release methane from the methane gas supply bottle group 51, and finally flowing out through a methane nozzle 56 to be ignited by an electric spark igniter 57 to form methane jet fire;
s5, pressure accumulation of ammonia gas:
opening a first stop valve 13 on the ammonia gas supply pipe 12, and then opening a first pressure reducing valve 14 to vaporize and release the liquid ammonia in the liquid ammonia gas supply cylinder group 11; the pressure in the buffer tank 33 continuously rises along with the continuous increase of the flow of the ammonia gas, and when the pressure reaches the preset value of the self-operated pressure regulating valve 31, the first pressure reducing valve 14 is closed to stop supplying the ammonia gas;
s6, ammonia gas ignition:
opening the first electromagnetic valve 44 to make the ammonia gas in the buffer tank 33 jet into the atmosphere through the ammonia gas nozzle 46; at this time, the methane ignition system 5 is already turned on in front of the ammonia gas nozzle 46, and the ammonia gas ejected from the methane flame can be directly ignited;
s7, ending the experiment and purging the pipeline:
closing the first electromagnetic valve 44 to finish ammonia gas release, and simultaneously opening the second electromagnetic valve 48 to ensure that the emptying branch pipe 47 is unblocked and residual ammonia gas is injected into the primary water tank 49; opening a second stop valve 23 and a second pressure reducing valve 24 on the nitrogen supply pipe 22 to release the nitrogen purging pipeline; all sensors and cameras 67 are turned off.
The experimental device for researching the ammonia jet flame integrates the functions of measuring the temperature of the ammonia combustion flame, measuring the thermal radiation of the ammonia combustion flame, measuring the concentration of the ammonia and measuring the shape of the ammonia combustion flame, can be used for developing ammonia combustion experiments in different jet directions, and can adjust the pressure and the jet caliber of the ammonia so as to adapt to actual working conditions. In addition, under the condition that an ignition system is not used for ignition, toxic ammonia cloud can be formed after ammonia flows into the atmosphere from the ammonia nozzle 46, multiple groups of ammonia concentration sensors and micro anemometers can be continuously arranged in the ammonia jet direction according to ammonia concentration, an ammonia concentration field and diffusion speed formed after liquid ammonia leakage and diffusion are researched, the toxic ammonia cloud is used for evaluating a danger range formed by liquid ammonia leakage and providing technical support for safe storage of the liquid ammonia.
The invention is not to be considered as limited to the specific embodiments shown and described, but is to be understood to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention as defined by the appended claims.
Claims (10)
1. An experimental device for studying ammonia jet flame, which is characterized by comprising:
a liquid ammonia gas supply system (1) for supplying ammonia gas;
the buffer system (3) is connected with the liquid ammonia gas supply system (1), and the buffer system (3) is used for buffering ammonia gas output by the liquid ammonia gas supply system (1);
the jet system (4) is connected with the buffer system (3), and the jet system (4) is used for ejecting the ammonia gas buffered in the buffer system (3) outwards and controlling the jet direction of the ammonia gas;
an ignition system (5) for igniting the ammonia gas injected by the jet system (4) to form an ammonia gas combustion flame;
and the data measurement system (6) is used for acquiring ammonia gas combustion flame data.
2. An experimental installation for ammonia jet flame research according to claim 1, characterized in that the buffer system (3) comprises a pressure regulating valve (31), a pressure tapping pipe (32), a buffer tank (33);
the pressure regulating valve (31) is arranged on an air inlet pipeline of the buffer tank (33), the pressure in the buffer tank (33) is obtained through a pressure taking pipe (32), and the air inlet flow of the buffer tank (33) is controlled according to the pressure in the buffer tank (33); if the pressure in the buffer tank (33) is higher than a preset value, the pressure regulating valve (31) reduces the air inlet flow; if the pressure in the buffer tank (33) is lower than a preset value, the pressure regulating valve (31) increases the intake air flow rate.
3. An experimental installation for ammonia jet flame research according to claim 1, characterized in that the jet system (4) comprises a jet branch (43), a first solenoid valve (44), a rotary joint (45), an ammonia nozzle (46);
the air outlet pipeline of the buffer system (3) is connected with the input end of the jet branch pipe (43); the output end of the jet branch pipe (43) is sequentially connected with a rotary joint (45) and an ammonia nozzle (46) along the gas transmission direction, and the rotary joint (45) is used for controlling the outlet direction of the ammonia nozzle (46), namely controlling the ammonia jet direction; the outlet aperture of the ammonia nozzle (46) is adjustable and is used for spraying ammonia with different jet flow apertures; and a first electromagnetic valve (44) is arranged on the jet branch pipe (43).
4. An experimental setup for ammonia jet flame research according to claim 3, characterized in that the jet system (4) further comprises blow-down manifolds (47);
the gas outlet pipeline of the buffer system (3) is respectively connected with the input end of the jet branch pipe (43) and the input end of the emptying branch pipe (47) through a second tee joint (42); the output end of the emptying branch pipe (47) is sequentially connected with a primary water tank (49), a water tank connecting pipe (410), a secondary water tank (411), a discharge pipe (412), a third tee joint (413) and an emptying valve (414) along the gas transmission direction; the output end of the emptying branch pipe (47) is inserted into the bottom of the primary water tank (49); the spare part at the top of the primary water tank (49) is communicated to the bottom of the secondary water tank (411) through a water tank connecting pipe (410); the input end of the discharge pipe (412) is inserted into the top vacant part of the secondary water tank (411); the output end of the discharge pipe (412) is respectively connected with an emptying valve (414) and a pipeline ammonia concentration sensor (65) through a third tee joint (413); a second electromagnetic valve (48) is arranged on the emptying branch pipe (47);
the emptying branch pipe (47) is used for discharging ammonia in the experimental device, and the discharged ammonia is dissolved by utilizing a primary water tank (49) and a secondary water tank (411).
5. The experimental device for the ammonia jet flame research as defined in claim 1, wherein the liquid ammonia gas supply system (1) comprises a liquid ammonia gas supply cylinder group (11), an ammonia gas supply pipe (12), a first stop valve (13), a first pressure reducing valve (14) and a first one-way valve (15) which are connected in sequence along a gas transmission direction; the liquid ammonia storage pressure in the liquid ammonia gas supply cylinder group (11) is higher than the liquefaction pressure of ammonia under the normal temperature condition, and after the first stop valve (13) is opened, the liquid ammonia in the liquid ammonia gas supply cylinder group (11) expands and vaporizes, and the ammonia passes through the ammonia gas supply pipe (12), the first stop valve (13), the first reducing valve (14) and the first check valve (15) in sequence to be output.
6. An experimental installation for ammonia jet flame research according to claim 1, characterized in that the ignition system (5) comprises a methane gas supply cylinder group (51) and an electric spark igniter (57);
the methane gas supply cylinder group (51) is connected with the input end of a methane gas supply pipe (52), and the output end of the methane gas supply pipe (52) is sequentially connected with a third stop valve (53), a third pressure reducing valve (54), a third one-way valve (55) and a methane nozzle (56) along the gas transmission direction and is used for spraying methane; the electric spark igniter (57) is used for igniting methane sprayed from the methane nozzle (56) to form methane spraying fire and igniting ammonia sprayed from the jet system (4).
7. An experimental installation for ammonia jet flame research according to claim 1, characterized in that said data measurement system (6) comprises:
the pressure sensor (61) and the temperature sensor (62) are connected with the buffer system (3) and are respectively used for measuring the pressure and the temperature of the ammonia gas cached in the buffer system (3);
a plurality of thermocouples (63) arranged along the ammonia gas jet axis for measuring the temperature of the ammonia gas combustion flame;
the radiant heat flow meters (64) are positioned beside the ammonia combustion flame and are arranged in parallel to the axial direction of the ammonia jet flow, and are used for measuring the heat radiation of the ammonia combustion flame;
a spatial ammonia concentration sensor (66) disposed in the environment for measuring a concentration of ammonia gas in the environment;
and the camera (67) is arranged beside the ammonia combustion flame, and the shooting direction of the camera (67) is perpendicular to the ammonia jet flow direction and is used for shooting the shape of the ammonia combustion flame.
8. An experimental apparatus for ammonia jet flame research according to claim 1, characterized in that the experimental apparatus further comprises: a nitrogen purge system (2) for providing nitrogen; the output end of the nitrogen purging system (2) is connected with the output end of the liquid ammonia gas supply system (1) through a first tee joint (16), and then is connected with the buffer system (3) through a gas transmission pipe (17);
the nitrogen purging system (2) comprises a nitrogen gas supply bottle group (21), a nitrogen gas supply pipe (22), a second stop valve (23), a second reducing valve (24) and a second one-way valve (25) which are sequentially connected along the gas transmission direction; liquid ammonia gas supply system (1) is not opened simultaneously with nitrogen gas purging system (2), opens liquid ammonia gas supply system (1) in the experimentation, and nitrogen gas purging system (2) are closed, and liquid ammonia gas supply system (1) is closed after the experiment is ended, and nitrogen gas purging system (2) are opened, utilize nitrogen gas to sweep remaining ammonia in the experimental apparatus.
9. The experimental setup for ammonia jet flame research as claimed in claim 1, characterized in that the experimental setup further comprises: a water spraying system (7) for absorbing ammonia gas from the environment; the water spraying system comprises a spraying water tank (71), a quantitative water pump (72), a water delivery pipe (73) and a spraying rack (74) arranged around an experimental area; the quantitative water pump (72) conveys water stored in the spray water tank (71) to a spray rack (74) through a water conveying pipe (73), and the spray rack (74) sprays water around an experimental area and is used for isolating and dissolving residual ammonia in the environment of the experimental area.
10. The experimental device for the ammonia jet flame research as claimed in claim 1, wherein after the pressure of the ammonia gas in the buffer system (3) reaches a preset value, the jet system (4) injects the ammonia gas buffered in the buffer system (3) outwards, the flow of the ammonia gas input into the buffer system (3) is maintained during the injection process, the pressure of the ammonia gas in the buffer system (3) is constant, and the ignition system (5) is used for igniting the ammonia gas injected by the jet system (4) to perform the combustion experiment of the ammonia gas constant-pressure jet;
or after the pressure of the ammonia in the buffer system (3) reaches a preset value, the jet system (4) injects the ammonia buffered in the buffer system (3) outwards, the ammonia is stopped from being input into the buffer system (3) in the injection process, and the ignition system (5) is utilized to ignite the ammonia injected by the jet system (4) so as to carry out the combustion experiment of the ammonia discharge jet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211290965.XA CN115372541B (en) | 2022-10-21 | 2022-10-21 | Experimental device for be used for ammonia efflux flame research |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211290965.XA CN115372541B (en) | 2022-10-21 | 2022-10-21 | Experimental device for be used for ammonia efflux flame research |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115372541A true CN115372541A (en) | 2022-11-22 |
| CN115372541B CN115372541B (en) | 2023-02-10 |
Family
ID=84073770
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211290965.XA Active CN115372541B (en) | 2022-10-21 | 2022-10-21 | Experimental device for be used for ammonia efflux flame research |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115372541B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116626263A (en) * | 2023-07-20 | 2023-08-22 | 合肥工业大学智能制造技术研究院 | Heterogeneous hydrogen cloud explosion double-flame testing system and method |
| CN118033034A (en) * | 2024-04-15 | 2024-05-14 | 合肥工业大学 | Liquid hydrogen jet combustion test system |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203389247U (en) * | 2013-07-24 | 2014-01-15 | 中国天辰工程有限公司 | Emergency water curtain system |
| CN105259308A (en) * | 2015-10-15 | 2016-01-20 | 南京工业大学 | Test system for effect of decontaminating leaked ammonia gas with water curtain |
| CN207169371U (en) * | 2017-07-16 | 2018-04-03 | 湖南汇虹试剂有限公司 | A kind of ammoniacal liquor device for absorbing tail gas |
| CN111812145A (en) * | 2020-07-27 | 2020-10-23 | 西南交通大学 | Low-temperature liquid hydrogen jet flame research experimental device |
| CN114458444A (en) * | 2022-01-29 | 2022-05-10 | 青岛双瑞海洋环境工程股份有限公司 | Ship liquid ammonia supply system and ammonia fuel power ship |
| CN114738139A (en) * | 2022-03-30 | 2022-07-12 | 青岛双瑞海洋环境工程股份有限公司 | Ship engine liquid ammonia supply system and ship |
| CN114776488A (en) * | 2022-04-22 | 2022-07-22 | 招商局金陵鼎衡船舶(扬州)有限公司 | Marine natural gas and ammonia dual-purpose energy supply system |
| CN114954885A (en) * | 2022-06-20 | 2022-08-30 | 青岛双瑞海洋环境工程股份有限公司 | Ammonia fuel supply system and ship |
| CN114992017A (en) * | 2022-06-20 | 2022-09-02 | 青岛双瑞海洋环境工程股份有限公司 | Heat exchange pressurization device, system and method for marine ammonia fuel supply system |
-
2022
- 2022-10-21 CN CN202211290965.XA patent/CN115372541B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203389247U (en) * | 2013-07-24 | 2014-01-15 | 中国天辰工程有限公司 | Emergency water curtain system |
| CN105259308A (en) * | 2015-10-15 | 2016-01-20 | 南京工业大学 | Test system for effect of decontaminating leaked ammonia gas with water curtain |
| CN207169371U (en) * | 2017-07-16 | 2018-04-03 | 湖南汇虹试剂有限公司 | A kind of ammoniacal liquor device for absorbing tail gas |
| CN111812145A (en) * | 2020-07-27 | 2020-10-23 | 西南交通大学 | Low-temperature liquid hydrogen jet flame research experimental device |
| CN114458444A (en) * | 2022-01-29 | 2022-05-10 | 青岛双瑞海洋环境工程股份有限公司 | Ship liquid ammonia supply system and ammonia fuel power ship |
| CN114738139A (en) * | 2022-03-30 | 2022-07-12 | 青岛双瑞海洋环境工程股份有限公司 | Ship engine liquid ammonia supply system and ship |
| CN114776488A (en) * | 2022-04-22 | 2022-07-22 | 招商局金陵鼎衡船舶(扬州)有限公司 | Marine natural gas and ammonia dual-purpose energy supply system |
| CN114954885A (en) * | 2022-06-20 | 2022-08-30 | 青岛双瑞海洋环境工程股份有限公司 | Ammonia fuel supply system and ship |
| CN114992017A (en) * | 2022-06-20 | 2022-09-02 | 青岛双瑞海洋环境工程股份有限公司 | Heat exchange pressurization device, system and method for marine ammonia fuel supply system |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116626263A (en) * | 2023-07-20 | 2023-08-22 | 合肥工业大学智能制造技术研究院 | Heterogeneous hydrogen cloud explosion double-flame testing system and method |
| CN116626263B (en) * | 2023-07-20 | 2023-09-29 | 合肥工业大学智能制造技术研究院 | Heterogeneous hydrogen cloud explosion double-flame testing system and method |
| CN118033034A (en) * | 2024-04-15 | 2024-05-14 | 合肥工业大学 | Liquid hydrogen jet combustion test system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN115372541B (en) | 2023-02-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN115372541B (en) | Experimental device for be used for ammonia efflux flame research | |
| CN109708000B (en) | L-CH2 type hydrogen station heat management system | |
| CN111982556B (en) | Hydrogen energy automobile fire simulation and prevention and control experimental method and device | |
| CN109682924A (en) | High-pressure gas pipeline leakage lights to form injection fire test device and its test method | |
| CN112963732A (en) | BOG comprehensive utilization system of LNG receiving station | |
| CN106338401A (en) | Airspace-engine test-bed long-range exhaust system | |
| CN108956089B (en) | Storage tank leakage flash evaporation jet flow behavior characteristic experimental test device and method | |
| CN106051760B (en) | Fuel injection device | |
| CN108776020A (en) | A kind of pilot system of hollow brick accumulation of heat heating | |
| CN105840983A (en) | LNG skid-mounted fuel gas supply device | |
| CN103486580B (en) | Tiny-oil ignition oxygenation combustion energy conservation system | |
| WO2023071261A1 (en) | Experimental device and method for testing features of urea direct-injection pyrolysis spray gun | |
| CN117147622A (en) | Hydrogen leakage diffusion combustion simulation experiment device | |
| CN216669293U (en) | Urea direct injection pyrolysis spray gun characteristic test experimental device | |
| CN206191578U (en) | Fuel injection device | |
| CN104696982A (en) | Coal-fired stove with vapor supported combustion function | |
| CN201242163Y (en) | Movable waste gases and waste liquid treatment vehicle | |
| JPWO2019003317A1 (en) | Power generation equipment | |
| CN204513396U (en) | A kind of weld heating device | |
| CN209229787U (en) | Segmented rocket engine combustion chamber and power drive unit | |
| CN210595964U (en) | NG cold air generating device | |
| CN208919702U (en) | A kind of LNG rapid air feeding system based on submerged combustion gasifier | |
| CN207729241U (en) | LNG, BOG, EAG air temperature type gasification air supply system device | |
| CN206282932U (en) | A kind of liquid fuel air of flame fuel battery compares control device | |
| CN100441705C (en) | Heat-treatment method for storage tank body of large-scale total pressure type LPG carrying vessel |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |