CN112852516B - Water reaction metal fuel formula and use method thereof - Google Patents
Water reaction metal fuel formula and use method thereof Download PDFInfo
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- CN112852516B CN112852516B CN202110028811.2A CN202110028811A CN112852516B CN 112852516 B CN112852516 B CN 112852516B CN 202110028811 A CN202110028811 A CN 202110028811A CN 112852516 B CN112852516 B CN 112852516B
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
- C10L8/00—Fuels not provided for in other groups of this subclass
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Abstract
The invention belongs to the technical field of fuels, and discloses a water reaction metal fuel formula and a using method thereof aiming at the application problem of a metal powder/liquid water system, wherein the water reaction metal fuel formula specifically comprises the following components: the metal fuel mixture is formed by mixing metal powder and super absorbent resin powder, and the addition amount of the super absorbent resin powder in the metal fuel mixture is 0.2-2% of the mass of the metal powder. The fuel is used in a storage state, a water adding state, a metal fuel mixture and water mixing state and a fuel combustion state respectively. The implementation process of the scheme is completed. The fuel formula has the advantages of easily obtained materials, low cost, simple use, easy implementation, good compatibility of the two materials and long-term storage. The fuel of the present invention can be mixed with water quickly, and has the conditions of starting and maintaining reaction.
Description
Technical Field
The invention belongs to the technical field of fuels, and particularly relates to a water reaction metal fuel formula and a using method thereof.
Background
The water reaction metal fuel such as aluminum, magnesium and the like has wide application prospect in underwater propulsion and space propulsion, and compared with other fuels, the water reaction metal has higher energy density and is green and pollution-free. In the field of new energy, the reaction of metal fuel and water as a preparation source of hydrogen also has good application prospect.
The scholars at home and abroad make more researches on the combustion characteristics of aluminum/water and magnesium/water. To obtain a homogeneous metal powder/liquid water system, gelling agents, such as Polyacrylamide (PAM) and polyacrylic acid-acrylamide (PAA), are commonly used to increase the viscosity of the liquid water so that the metal powder can be suspended in the liquid water. The metal powder/gel system can be uniformly mixed only by stirring for a long time, and the mixed system can not be kept stable for a long time at normal temperature, which brings serious troubles to storage and practical application. In addition, magnesium powder, nano aluminum powder, and the like can spontaneously react with water at normal temperature, and pre-mixing of these metal fuels with water is not practical. The researchers propose to inhibit the spontaneous reaction of the metal powder and water by low temperature and to keep the stable distribution of the metal powder by water ice, but the metal powder/water ice system needs low temperature storage and faces great difficulty in practical use. From the application point of view, it is more desirable to establish a metal powder/liquid water mixing system quickly to achieve the purpose of mixing immediately after use.
Aiming at the application problem of a metal powder/liquid water system, the invention provides a novel water reaction metal fuel formula and a using method thereof, and the formula and the using method can realize the rapid and uniform mixing of metal powder and liquid water.
Disclosure of Invention
The invention aims to provide a water reaction metal fuel formula and a using method thereof, aiming at the problems that in the prior art, a mixture of metal powder and liquid water can be stored directly, the mixture can react slowly at low temperature and cannot be stored for a long time, the liquid water also occupies the mass, the energy density is low in the storage process, and the practical use is further caused.
The technical scheme adopted by the invention is as follows:
the water reaction metal fuel formula specifically comprises the following components:
the metal fuel mixture is formed by mixing metal powder and super absorbent resin powder, and the addition amount of the super absorbent resin powder in the metal fuel mixture is 0.2-2% of the mass of the metal powder.
Further, the metal powder is any one of magnesium powder, aluminum powder, zirconium powder or beryllium powder; preferably, the metal powder is aluminum powder.
Further, the Super Absorbent Polymer (SAP) mainly comprises low-crosslinking sodium polyacrylate, and the particle size of the SAP is smaller than 100 meshes; preferably, the particle size of the super absorbent resin powder is 200 meshes.
A use method of a water reaction metal fuel formula specifically comprises the following steps:
(a) and (4) storage state: placing the metal fuel mixture in a combustion chamber, and reserving residual space in the combustion chamber;
(b) and (3) adding water: supplying liquid water with a specified volume into the combustion chamber, filling the residual space of the combustion chamber, and allowing the added liquid water to enter pores of the metal fuel mixture through osmosis;
(c) the metal fuel mixture and water are mixed: the metal fuel mixture after absorbing water is filled in the combustion chamber, and the metal fuel mixture after absorbing water has the conditions of igniting and maintaining combustion;
(d) the fuel combustion state: and (4) igniting, enabling the fuel to be in a combustion state, and spraying the combustion spray from the spray pipe to finish the implementation process of the scheme.
Further, the rest volume of the combustion chamber in the step (a) is filled with inert gas or air, and the metal fuel mixture is placed for a prolonged time under the anhydrous environment.
Further, in the step (a), the metal fuel mixture is directly stored in the combustion chamber, or is firstly stored in another powder storage device and then is sent into the combustion chamber when in use.
Further, the residual space reserved in the combustion chamber in the step (a) is the volume of liquid water required by combustion, and the proportion of the metal fuel mixture and the volume of the metal fuel mixture in the combustion chamber are obtained through calculation.
Further, in the step (b), the speed of the liquid water entering the metal fuel mixture is increased by constructing a water supply channel inside the metal fuel mixture. Further, in step (b), a water supply channel is arranged in the combustion chamber, the water supply channel comprises a water inlet pipe, a main water supply pipe and a secondary water supply pipe, the water inlet pipe is coaxially arranged along the central axis of the combustion chamber, the main water supply pipe is outwards arranged along the outer wall of the water inlet pipe in a dispersing manner, each main water supply pipe extends from top to bottom to be arranged into a plurality of secondary water supply pipes, and micropores are formed in the secondary water supply pipes.
Furthermore, the water supply channel is made of metal aluminum or other materials which are easy to decompose at high temperature, and the materials which are easy to decompose at high temperature are polymethyl methacrylate.
The invention has the beneficial effects that:
1. the fuel of the invention is a mixture of metal powder and super absorbent resin powder, and the two materials have good compatibility and can be stored for a long time.
2. The mass content of the metal powder in the fuel is more than 98 percent, and the energy density is high.
3. The fuel of the invention can be mixed with water quickly, and the water is distributed in the fuel to obtain a uniform mixing system.
4. The fuel formula of the invention has the advantages of easily obtained materials, low cost, simple use and easy implementation.
5. The fuel of the present invention has conditions for initiating and maintaining the reaction after mixing with water.
Drawings
FIG. 1 shows a photomicrograph at a microscopic magnification of 40 of the super absorbent resin powder before absorption of water.
Fig. 2 shows a photomicrograph of the super absorbent resin powder after water absorption, wherein the microscope magnification is 40, and the water absorption mass is 100 times of the self mass.
Fig. 3 shows the phenomenon that the fuel (mixture of aluminum powder and low-crosslinking sodium polyacrylate powder) of the present invention is ignited and continuously burned after being mixed with water, and the morphology of the product after the combustion.
Fig. 4 shows a state diagram of different stages in an embodiment of the invention.
In fig. 4, (a), the memory state; (b) adding water; (c) the metal fuel mixture and the water are mixed; (d) a fuel combustion state;
FIG. 5 is a schematic view showing the arrangement of water supply passages in the present invention;
FIG. 6 is a schematic view showing the overall structure of a water supply passage according to the present invention;
wherein, 1, a water inlet of the combustion chamber; 2. a combustion chamber; 3. a nozzle; 4. liquid water; 5. a metal fuel mixture; 6. igniting powder; 7. a metal fuel mixture after water absorption; 8. a combustion jet; 9. a water supply channel; 10. a water inlet pipe; 11. a main water supply pipe; 12. a secondary water supply pipe.
Detailed Description
In order to more clearly illustrate the invention, the invention is further described below with reference to preferred embodiments and the accompanying drawings. Similar parts in the figures are denoted by the same reference numerals. It is to be understood by persons skilled in the art that the following detailed description is illustrative and not restrictive, and is not to be taken as limiting the scope of the invention.
In one embodiment of the present invention, fig. 1 and 2 show photomicrographs before and after water absorption of the super absorbent resin powder at a magnification of 40. The super absorbent resin powder can absorb hundreds of times of deionized water in 30 seconds and fix the deionized water, so that the liquid water is in a form similar to water particles. Therefore, the super absorbent resin powder and the metal powder can be mixed in advance, and water is added when necessary to form a metal powder/liquid water uniform mixing system. Fig. 3 shows a phenomenon that a fuel (a mixture of aluminum powder and low-crosslinking sodium polyacrylate powder) is ignited and continuously burned after being mixed with water, and a form of a combustion product, and the mixture of the fuel and water can be ignited and stably burned.
According to the early experimental research results, the invention obtains a water reaction fuel formula, namely metal powder and super absorbent resin powder which are uniformly mixed.
In another embodiment of the present invention, as shown in fig. 4, the metal powder and the super absorbent resin powder are mixed uniformly before the 4 stages of fig. 4.
Stage (a) is a storage state in which the metal-fuel mixture 5 is placed in the combustion chamber 2, the remaining volume of the combustion chamber 2 can be filled with inert gas or air, and the metal-fuel mixture 5 can be stored for a long time in a water-free environment.
When in use, stage (b) is entered into a water-adding state, and a specified volume of liquid water 4 is supplied into the combustion chamber 2 through the combustion chamber water inlet 1 to fill the remaining volume of the combustion chamber 2. The added liquid water 4 enters the pores of the metal fuel mixture 5 due to osmosis, and the water-absorbent resin powder therein absorbs water and expands, so that the combustion chamber is filled with the absorbed metal fuel mixture 7.
At this time, the metal fuel mixture and water are mixed in the stage (c), and the metal fuel mixture 7 after water absorption in the stage has the conditions for ignition and combustion maintenance.
Finally, ignition is carried out by the ignition charge 6, the fuel combustion state in the stage (d) is entered, and the combustion jet 8 is jetted out from the nozzle 3, thereby completing the implementation process of the scheme.
In another embodiment of the present invention, during the step (a), the metal fuel mixture 5 can be stored directly in the combustion chamber 2, or can be stored in another powder storage device and then fed into the combustion chamber 2. The remaining volume of the combustion chamber 2 is the volume of the liquid water 4 required for combustion, and the super absorbent resin contained in the metal fuel mixture 5 can absorb the liquid water 4, so that the proportion of the metal fuel mixture 5 and the volume of the metal fuel mixture 5 in the combustion chamber 2 can be calculated.
In another embodiment of the present invention, during the implementation of the step (b), some measures may be taken to increase the speed of the liquid water 4 entering the metal fuel mixture 5, such as constructing a water supply channel inside the metal fuel mixture 5 for the combustion chamber 2, and the water supply channel may increase the water penetration area.
In another embodiment of the present invention, as shown in fig. 5 and 6, in the water adding state in step (b), a water supply channel 9 is disposed in the combustion chamber 2, the water supply channel 9 includes a water inlet pipe 10, a main water supply pipe 11 and a secondary water supply pipe 12, the water inlet pipe 10 is coaxially arranged along a central axis of the combustion chamber 2, the main water supply pipe 11 is dispersedly arranged along an outer wall of the water inlet pipe 10, each main water supply pipe 11 is extended from top to bottom and is provided as a plurality of secondary water supply pipes 12, and the secondary water supply pipes 12 are provided with micro-holes.
The water supply channel 9 is made of metal aluminum or other materials which are easy to decompose at high temperature, and the materials which are easy to decompose at high temperature are polymethyl methacrylate.
In the water adding state in the step (b), one part of water is directly supplied to the combustion chamber 2 through the combustion chamber water inlet 1, and the other part of water passes through the water inlet pipe 10, flows through the main water supply pipe 11, is dispersed into the secondary water supply pipe 12, and finally passes through micropores formed in the secondary water supply pipe 12 to enter the metal fuel mixture 5.
The water supply channel 9 is made of metal aluminum, and the aluminum can be used as fuel to burn in the fuel burning state in the step (d). Meanwhile, other materials which are easily decomposed at high temperature can be selected, such as polymethyl methacrylate (PMMA), also known as acrylic or organic glass, and the like.
It should be understood that the above-mentioned embodiments of the present invention are only examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention, and it will be obvious to those skilled in the art that other variations or modifications may be made on the basis of the above description, and all embodiments may not be exhaustive, and all obvious variations or modifications may be included within the scope of the present invention.
Claims (7)
1. The use method of the water reaction metal fuel formula is characterized in that the water reaction metal fuel formula specifically comprises the following components:
the metal fuel mixture is formed by mixing metal powder and super absorbent resin powder, and the addition amount of the super absorbent resin powder in the metal fuel mixture is 0.2-2% of the mass of the metal powder;
the main component of the super absorbent resin is low cross-linked sodium polyacrylate, and the particle size of the super absorbent resin is less than 100 meshes;
the use method of the water reaction metal fuel formula specifically comprises the following steps:
(a) and (4) storage state: placing the metal fuel mixture in a combustion chamber, and reserving residual space in the combustion chamber;
(b) and (3) adding water: supplying liquid water with a specified volume into the combustion chamber, filling the residual space of the combustion chamber, and allowing the added liquid water to enter pores of the metal fuel mixture through osmosis;
(c) the metal fuel mixture and water are mixed: the metal fuel mixture after absorbing water is filled in the combustion chamber, and the metal fuel mixture after absorbing water has the conditions of igniting and maintaining combustion;
(d) the fuel combustion state: and (4) igniting, wherein the fuel is in a combustion state, and the combustion jet is jetted out from the jet pipe to finish the implementation process of the scheme.
2. The use method of the water-reactive metal fuel formulation according to claim 1, wherein the metal powder is any one of magnesium powder, aluminum powder, zirconium powder or beryllium powder.
3. The method of claim 1, wherein the remaining volume of the combustion chamber in step (a) is filled with an inert gas or air, and the metal fuel mixture is left for an extended period of time in a water-free environment.
4. The method of claim 1, wherein in step (a), the metal fuel mixture is stored directly in the combustion chamber, or stored in another powder storage device before being fed into the combustion chamber.
5. The method of claim 1, wherein the remaining space in the combustion chamber in step (a) is the volume of liquid water required for combustion, and the ratio of the metal-fuel mixture and the volume of the metal-fuel mixture in the combustion chamber are calculated.
6. The method as claimed in claim 1, wherein in the step (b), a water supply channel is disposed in the combustion chamber, the water supply channel includes a water inlet pipe, a main water supply pipe and a secondary water supply pipe, the water inlet pipe is coaxially disposed along a central axis of the combustion chamber, the main water supply pipe is dispersively disposed along an outer wall of the water inlet pipe, each main water supply pipe extends from top to bottom and is disposed as a plurality of secondary water supply pipes, and the secondary water supply pipes are provided with micropores.
7. The use method of the water-reactive metal fuel formulation according to claim 6, wherein the water supply channel is made of aluminum or other materials that are easily decomposed at high temperature, and the materials that are easily decomposed at high temperature are polymethyl methacrylate.
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| CN202110028811.2A CN112852516B (en) | 2021-01-11 | 2021-01-11 | Water reaction metal fuel formula and use method thereof |
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| CN202110028811.2A CN112852516B (en) | 2021-01-11 | 2021-01-11 | Water reaction metal fuel formula and use method thereof |
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| CN112852516B true CN112852516B (en) | 2022-04-08 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2162755C1 (en) * | 2000-06-15 | 2001-02-10 | Закрытое акционерное общество "ФИРМА РИКОМ" | Composition preparation method |
| RU2241721C1 (en) * | 2003-07-02 | 2004-12-10 | Государственное научное учреждение Всероссийский научно-исследовательский технологический институт ремонта и эксплуатации машинно-тракторного парка | Method for preparing composition |
| EP2055669A2 (en) * | 2007-11-01 | 2009-05-06 | Honeywell International Inc. | Hydrogen producing fuel for power generator |
| CN102502491A (en) * | 2011-11-18 | 2012-06-20 | 北京理工大学 | Preparation for highly reactive hydroreactive metal material used for preparing hydrogen gas |
| CN109764355A (en) * | 2019-01-17 | 2019-05-17 | 中国科学院力学研究所 | A kind of ignition system for micron metal powder and liquid aqueous mixtures |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9337501B2 (en) * | 2003-07-29 | 2016-05-10 | Intelligent Energy Limited | Hydrogen-generating fuel cell cartridges |
| RU2015147998A (en) * | 2013-04-10 | 2017-05-11 | Винтерсхол Хольдинг Гмбх | FLUID COMPOSITION FOR THERMAL TREATMENT OF CELLS |
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2021
- 2021-01-11 CN CN202110028811.2A patent/CN112852516B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2162755C1 (en) * | 2000-06-15 | 2001-02-10 | Закрытое акционерное общество "ФИРМА РИКОМ" | Composition preparation method |
| RU2241721C1 (en) * | 2003-07-02 | 2004-12-10 | Государственное научное учреждение Всероссийский научно-исследовательский технологический институт ремонта и эксплуатации машинно-тракторного парка | Method for preparing composition |
| EP2055669A2 (en) * | 2007-11-01 | 2009-05-06 | Honeywell International Inc. | Hydrogen producing fuel for power generator |
| CN102502491A (en) * | 2011-11-18 | 2012-06-20 | 北京理工大学 | Preparation for highly reactive hydroreactive metal material used for preparing hydrogen gas |
| CN109764355A (en) * | 2019-01-17 | 2019-05-17 | 中国科学院力学研究所 | A kind of ignition system for micron metal powder and liquid aqueous mixtures |
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| CN112852516A (en) | 2021-05-28 |
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