阅读说明：本技术 一种用于高效磁流体发电技术的固态电离种子注入装置 (Solid-state ionization seed injection device for high-efficiency magnetohydrodynamic power generation technology ) 是由 高岭 王卫民 张百灵 惠晓晖 陈小林 李博 陈威仰 王阳 于 2019-12-18 设计创作，主要内容包括：本发明一种用于高效磁流体发电技术的固态电离种子注入装置,包括气源装置、减压阀、减压阀出口管路、止回管路、增压管路、分压管路、电离种子输出管路、固态电离种子储存箱、电离种子注入喷管,所述气源装置通过增压管路与固态电离种子储存箱连接；所述气源装置通过止回管路与电离种子注入喷管连接且电离种子注入喷管伸入燃气发生器；所述固态电离种子储存箱通过电离种子输出管路与电离种子注入喷管连接。本发明采用固态电离种子注入装置,可以有效避免OH<Sup>-</Sup>和O、H原子的存在,防止OH<Sup>-</Sup>和O、H原子对电子的吸附,从而提高电导率的数值。(The invention relates to a solid-state ionization seed injection device for a high-efficiency magnetohydrodynamic power generation technology, which comprises an air source device, a pressure reducing valve outlet pipeline, a non-return pipeline, a pressurization pipeline, a pressure dividing pipeline, an ionization seed output pipeline, a solid-state ionization seed storage box and an ionization seed injection spray pipe, wherein the air source device is connected with the solid-state ionization seed storage box through the pressurization pipeline; the gas source device is connected with the ionized seed injection spray pipe through a non-return pipeline, and the ionized seed injection spray pipe extends into the fuel gas generator; the solid-state ionized seed storage box is connected with the ionized seed injection spray pipe through the ionized seed output pipeline. The invention adopts the solid ionization seed injection device, and can effectively avoid OH ‑ And O, H atoms, preventing OH ‑ And O, H adsorption of electrons by atoms, thereby increasing the value of conductivity.)

1. A solid-state ionization seed injection device for high-efficiency magnetohydrodynamic power generation technology is characterized in that: comprises an air source device, a pressure reducing valve outlet pipeline, a non-return pipeline, a pressurizing pipeline, a pressure dividing pipeline, an ionized seed output pipeline, a solid ionized seed storage box and an ionized seed injection spray pipe,

an outlet of the air source device is connected with the pressure reducing valve, and an outlet pipeline of the pressure reducing valve is respectively connected with inlets of the pressurization pipeline and the non-return pipeline; one end of the solid ionized seed storage tank is connected with the outlet of the pressurization pipeline, and the other end of the solid ionized seed storage tank is connected with the non-return pipeline through the ionized seed output pipeline; one end of the ionized seed output pipeline is connected with the solid ionized seed storage box, the other end of the ionized seed output pipeline is connected with one end of the ionized seed injection spray pipe, and the other end of the ionized seed injection spray pipe extends into the fuel gas generator;

the non-return pipeline is connected with a pressure dividing pipeline, a third gate valve is arranged on the pressure dividing pipeline and located between the pressurization pipeline and the ionization seed output pipeline, and the pressure in the non-return pipeline is smaller than the pressure in the pressurization pipeline.

2. The solid-state ionization seed injection device for the high-efficiency magnetohydrodynamic power generation technology according to claim 1, characterized in that: the export of pressure boost pipeline is located the bottom of solid-state ionization seed bin, and ionization seed output pipeline's entry is located pressure boost pipeline's export directly over, and the export of pressure boost pipeline and the interval of ionization seed output pipeline entry are not less than 5mm, and the height that highly is less than the material of pressure boost pipeline export.

3. The solid-state ionization seed injection device for the high-efficiency magnetohydrodynamic power generation technology according to claim 2, wherein: the axial line of the ionized seed injection nozzle and the axial line of the fuel gas generator form an included angle of 20-80 degrees.

4. The solid-state ionization seed injection device for the high-efficiency magnetohydrodynamic power generation technology of claim 3, wherein: the device also comprises a discharge device arranged on the ionized seed output pipeline.

5. The solid-state ionization seed injection device for the high-efficiency magnetohydrodynamic power generation technology according to claim 4, wherein: and a first gate valve is arranged at one end, close to the ionized seed injection spray pipe, of the non-return pipeline.

6. The solid-state ionization seed injection device for the high-efficiency magnetohydrodynamic power generation technology of claim 5, wherein: and a second gate valve is arranged on the ionization seed output pipeline and is positioned between the discharging device and the solid ionization seed storage box.

7. The solid-state ionization seed injection device for the high-efficiency magnetohydrodynamic power generation technology of claim 3, wherein: the axis of the ionized seed injection nozzle and the axis of the gas generator form an included angle of 30 degrees.

8. The solid-state ionization seed injection device for the high-efficiency magnetohydrodynamic power generation technology according to any one of claims 1 to 7, wherein: also comprises an ionized seed injection valve arranged on the solid ionized seed storage tank.

Technical Field

The invention belongs to the technical field of plasmas, and particularly relates to a solid-state ionization seed injection device for a high-efficiency magnetohydrodynamic power generation technology.

Background

The magnetohydrodynamic power generation is a novel power generation mode for directly converting heat energy into electric energy, the working principle of the magnetohydrodynamic power generation is Faraday's law of electromagnetic induction, and the magnetohydrodynamic power generation utilizes induced electromotive force generated by cutting magnetic lines of force when a conductive fluid moves at high speed in a magnetic field to convert the energy. The magnetohydrodynamic power generation is generated by cutting magnetic induction lines by conductive fluid, and the common generator is generated by cutting the magnetic induction lines by metal conductors. Therefore, the magnetohydrodynamic power generation does not need to convert heat energy into kinetic energy of the metal conductor, so that the energy loss is less, and high-efficiency power generation can be realized.

At present, because the non-equilibrium ionization technology is not mature, the requirement of the aerospace field cannot be met by adopting the power extraction of the non-equilibrium ionization magnetofluid; the balanced ionization technology is relatively mature, the requirement of conductivity required by extracting certain electric energy can be generated by adding an ionization seed only by meeting a certain temperature requirement (2500K), and particularly, the advantage of power extraction of the balanced ionization magnetofluid is obvious under the condition that the flight speed is high enough or the temperature of a combustion chamber is high enough. With the successful development of the light carbon nano tube, the magnet problem restricting the application of the balanced ionization magnetofluid power extraction technology in the aerospace field is expected to be solved.

The research of magnetofluid technology must make the moving fluid in magnetic field have certain conductivity, and the weak ionization of ordinary gas can be started when the temperature reaches 6000K, so that it can raise its working efficiencyWhich high temperatures are not possible with typical hydrocarbon fuel combustion. In order to make the gas have the conductivity required for magnetofluid technical research, injection of alkali metal or alkali metal salt substances with lower ionization potential into the fluid is often used as ionization seeds, such as K₂CO₃，CsCO₃NaK, etc., but the water entering the combustion chamber along with the ionized seeds can seriously affect the level of the conductivity, and directly restrict the generating efficiency of the magnetofluid.

At present, ionized seeds are generally injected into the gas generator in a manner of ionizing an aqueous seed solution, which can solve the injection problem of the ionized seeds to some extent. However, under high temperature conditions water vapor will decompose to give a certain amount of OH^-According to the existing data, OH^-Is an electronegative species that affects the concentration of electrons in the ionized gas in two ways. First, the electron is adsorbed to form OH^-Negative ions, which reduce the number of free electrons generated by thermal ionization, thereby directly affecting the conductivity of the ionized gas; II and K₂CO₃The decomposed potassium atoms are reduced to synthesize KOH again, and the number of potassium atoms which can be ionized in the gas is reduced, so that the conductivity of the ionized gas is indirectly influenced. In addition, OH is removed^-There is also a certain amount of O, H atoms, which also have a certain adsorption of electrons, which reduces the value of the conductivity.

Disclosure of Invention

Aiming at the defects and shortcomings in the prior art, the invention aims to provide a method for effectively avoiding OH^-And O, H atoms, used for the solid ionization seed injection device of the high-efficiency magnetofluid power generation technology.

A solid-state ionization seed injection device for high-efficiency magnetohydrodynamic power generation technology comprises an air source device, a pressure reducing valve outlet pipeline, a non-return pipeline, a pressurization pipeline, a pressure dividing pipeline, an ionization seed output pipeline, a solid-state ionization seed storage box and an ionization seed injection spray pipe,

an outlet of the air source device is connected with the pressure reducing valve, and an outlet pipeline of the pressure reducing valve is respectively connected with inlets of the pressurization pipeline and the non-return pipeline;

one end of the solid ionized seed storage tank is connected with the outlet of the pressurization pipeline, and the other end of the solid ionized seed storage tank is connected with the non-return pipeline through the ionized seed output pipeline; one end of the ionized seed output pipeline is connected with the solid ionized seed storage box, the other end of the ionized seed output pipeline is connected with one end of the ionized seed injection spray pipe, and the other end of the ionized seed injection spray pipe extends into the fuel gas generator;

the non-return pipeline is connected with a pressure dividing pipeline, a third gate valve is arranged on the pressure dividing pipeline and is located between the pressurization pipeline and the ionization seed output pipeline, and the pressure in the non-return pipeline is smaller than the pressure in the pressurization pipeline.

The export of pressure boost pipeline is located the bottom of solid-state ionization seed bin, and ionization seed output pipeline's entry is located pressure boost pipeline's export directly over, and the export of pressure boost pipeline and the interval of ionization seed output pipeline entry are not less than 5mm, and the height that highly is less than the material of pressure boost pipeline export.

Preferably, the axis of said ionized seed injection lance is angled at an angle of between 20 ° and 80 ° with respect to the axis of the gasifier.

Preferably, the device further comprises a discharging device arranged on the ionized seed output pipeline.

Preferably, a first gate valve is arranged at one end, close to the ionized seed injection spray pipe, of the check pipeline.

Preferably, a second gate valve is arranged on the ionized seed output pipeline and is positioned between the discharging device and the solid ionized seed storage box.

Preferably, the axis of said ionized seed injection lance is angled at 30 ° with respect to the axis of the gasifier.

Preferably, the device further comprises an ionized seed injection valve arranged on the solid ionized seed storage tank.

Compared with the prior art, the invention has the following advantages:

(1) the non-return pipeline is added to serve as a normally open circuit, so that high-pressure airflow in the pipeline always flows to the combustion chamber through the ionized seed injection nozzle, on one hand, the dispersion effect of ionized seeds can be increased, the ionized seeds are injected into the combustion chamber more uniformly, on the other hand, the flame can be ensured not to flow back, and the injected ionized seeds are more uniform and dispersed;

(2) the invention adds a partial pressure pipeline for adjusting the pressure and flow rate of the stop loop and adjusting the injection amount of the ionized seeds;

(3) the ionization seed discharging device is additionally arranged, and ionization seeds remained in the pipeline of the ionization seed output pipeline are discharged through the discharging pipeline, so that the ionization seeds are prevented from polluting experimental equipment.

(4) The ionized seed injection nozzle is positioned at the upper part of the injection panel of the fuel gas generator, and the axis of the nozzle forms an included angle with the axis of the generator, so that the mixing effect of ionized seeds and airflow is improved, and the improvement of the electrical conductivity of the airflow is facilitated.

(5) The invention adopts the developed solid ionization seed injection device, and can effectively avoid OH^-And O, H atoms, thereby avoiding the adsorption of electrons, improving the value of the conductivity, and having simple structure and easy operation.

Drawings

FIG. 1 is a schematic structural diagram of a solid ionization seed injection device for high-efficiency magnetohydrodynamic power generation technology according to the present invention;

Detailed Description

The following description of the embodiments of the present invention refers to the accompanying drawings and examples:

it should be noted that the structures, proportions, sizes, and other dimensions shown in the drawings and described in the specification are only for the purpose of understanding and reading the present disclosure, and are not intended to limit the scope of the present disclosure, which is defined by the following claims, and any modifications of the structures, changes in the proportions and adjustments of the sizes, without affecting the efficacy and attainment of the same, are intended to fall within the scope of the present disclosure.

Meanwhile, it should be understood that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations and positional relationships based on the orientations and positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the devices or elements in question must have a specific orientation, be constructed and operated in a specific orientation, and are not intended to limit the scope of the present invention, and changes or modifications in the relative relationships thereof without substantial technical changes may be made. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features shown. Thus, features defined as "first", "second", etc. may indicate, either explicitly or implicitly, the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

The invention provides a solid ionization seed injection device for high-efficiency magnetohydrodynamic power generation technology, which can effectively avoid OH by adopting the solid ionization seed injection device^-And O, H atoms.

The invention is further described below with reference to the accompanying drawings.

As shown in fig. 1, a solid-state ionized seed injection device for high-efficiency mhd technology comprises an air source device 6, a pressure reducing valve 14, a pressure reducing valve outlet pipeline 15 non-return pipeline 3, a pressure increasing pipeline 9, a pressure dividing pipeline 4, an ionized seed output pipeline 7, a solid-state ionized seed storage tank 8 and an ionized seed injection spray pipe 2, wherein anhydrous potassium carbonate is selected as ionized seeds, and the potassium carbonate is ground to 5um by a planetary ball mill before use.

An outlet of the air source device 6 is connected with a pressure reducing valve 14, and an outlet pipeline 15 of the pressure reducing valve is respectively connected with inlets of the pressurization pipeline 9 and the check pipeline 3; the total pressure in the entire installation line is regulated by the pressure reducing valve 14 so that the gas pressure supplied from the gas supply installation 1 is not too high or too low.

One end of the solid-state ionization seed storage tank 8 is connected with an outlet of the pressurization pipeline 9, and the other end of the solid-state ionization seed storage tank 8 is connected with the non-return pipeline 3 through the ionization seed output pipeline 7; one end of the ionized seed output pipeline 7 is connected with the solid ionized seed storage box 8, the other end of the ionized seed output pipeline is connected with one end of the ionized seed injection spray pipe 2, and the other end of the ionized seed injection spray pipe 2 extends into the fuel gas generator 1;

the non-return pipeline 3 is connected with a pressure dividing pipeline 4, a third gate valve 13 is arranged on the pressure dividing pipeline 4 and is positioned between the pressure increasing pipeline 9 and the ionization seed output pipeline 7, and the pressure in the non-return pipeline 3 is smaller than the pressure in the pressure increasing pipeline 9.

Specifically, the outlet of the pressurization pipeline 9 is located at the bottom of the solid-state ionization seed storage box 8, the inlet of the ionization seed output pipeline 7 is located right above the outlet of the pressurization pipeline 9, the distance between the outlet of the pressurization pipeline 9 and the inlet of the ionization seed output pipeline 7 is not less than 5mm, and the height of the outlet of the pressurization pipeline 9 is lower than the height of the material.

The gas output by the gas source device 6 is converged by the pressure reducing valve 14, the non-return pipeline 3 and the ionized seed output pipeline 7 in sequence, enters the ionized seed injection spray pipe 2 and is injected into the gas generator 1;

the partial pressure pipeline 4 is located non return pipeline 3, is equipped with third gate valve 13 on the partial pressure pipeline 4, opens the third gate valve 13 during the use, makes non return pipeline 3 internal pressure less than the pressure boost pipeline 9 internal pressure, ensures that the ionization seed gets into in the ionization seed injection spray tube 2 through ionization seed output pipeline 7 and pours into the gas generator 1 through ionization seed injection spray tube 2.

The partial pressure pipeline 4 is used for adjusting the pressure and the flow rate of the non-return pipeline 3 and adjusting the injection amount of the ionized seeds. And the pressure in the non-return pipeline 3 can not be too high, otherwise the gas retention time is too short, the ionized seeds can not be effectively injected, when the pressure in the non-return pipeline 3 is too high, the third gate valve 13 is opened to open the partial pressure pipeline 4, and the pressure is reduced through the partial pressure pipeline 4.

A part of gas provided by the gas source device 6 is converged by the pressure reducing valve 14, the check pipeline 3 and the ionized seed output pipeline 7, enters the ionized seed injection nozzle 2 and is injected into the gas generator 1, and a part of gas is pressurized to the solid ionized seed storage tank 8 by the pressure reducing valve 14 and the pressurization pipeline 9; the high pressure in the solid-state ionized seed storage box 8 and the injection effect of the high-speed flowing air flow of the check pipeline 3 can enable the ionized seeds in the solid-state ionized seed storage box 8 to enter the ionized seed output pipeline 7, and then the ionized seeds and the air flow of the check pipeline 3 are converged and injected into the fuel gas generator 1 through the ionized seed injection spray pipe 2.

Specifically, the ionized seed injection lance 2 is positioned at the upper part of the injection panel of the gas generator 1, the axis of the ionized seed injection lance 2 is at an angle of 20-80 degrees with respect to the axis of the gas generator 1, the design angle facilitates the injection of the ionized seeds, wherein the angle of 30 degrees is optimized, so that the ionized seeds injected into the gas generator 1 through the ionized seed injection lance 2 are discrete and uniform, the mixing effect of the ionized seeds and the gas flow is increased, and the conductivity of the gas flow is improved.

The solid-state ionized seed storage tank 8 is connected with the non-return pipeline 3 through an ionized seed output pipeline 7.

Specifically, a first gate valve 11 is arranged at one end of the non-return pipeline 3 close to the ionized seed injection nozzle 2. The first gate valve 11 functions as a switch for controlling whether the ionized seeds in the check line 3 enter the ionized-seed injection nozzle 2. The non-return pipeline 3 is used as a normal open circuit, so that high-pressure airflow always flows to the fuel gas generator 1 through the ionization seed injection spray pipe 2. In the experimental process, the solid ionizing seed injection device can increase the dispersion effect of the ionizing seeds due to the existence of the check pipeline 3, so that the ionizing seeds are more uniformly injected into the fuel gas generator 1, and the backflow of flame can be prevented.

Specifically, the outlet of the pressurization pipeline 9 is located at the bottom of the solid-state ionized seed storage tank 8, the inlet of the ionized seed output pipeline 7 is located right above the outlet of the pressurization pipeline 9, the distance between the outlet of the pressurization pipeline 9 and the inlet of the ionized seed output pipeline 7 is not less than 5mm, and the height of the outlet of the pressurization pipeline 9 is lower than the height of the material. So that the gas of the gas source device 6 blows and floats the solid ionized seeds through the pressurization pipeline 9 and outputs the solid ionized seeds to the ionized seed injection spray pipe 2 through the ionized seed output pipeline 7.

Specifically, the device also comprises a discharge device 5 arranged on the ionized seed output pipeline 7. The discharging device 5 is used for discharging the residual ionized seeds in the ionized seed output pipeline 7, so that the ionized seeds are prevented from polluting the equipment. Anhydrous potassium carbonate was selected as the ionizing seed and the potassium carbonate was milled to 5um using a planetary ball mill before use.

Specifically, the ionized seed output pipeline 7 is provided with a second gate valve 12, which is located between the discharging device 5 and the solid-state ionized seed storage tank 8. The second gate valve 12 functions as a switch, the second gate valve 12 is closed, and the discharging device 5 is opened, so that the ionized seeds remained between the check pipeline 3 and the second gate valve 12 in the ionized seed output pipeline 7 are discharged.

Specifically, an ionized-seed injection valve 10 provided on the solid-state ionized-seed storage tank 8 is further included for injecting ionized seeds from the outside into the ionized-seed storage tank 8.

The working principle is as follows:

part of the gas provided by the gas source device 6 is converged by the non-return pipeline 3 and the ionized seed output pipeline 7 and enters the gas generator 1 through the ionized seed injection spray pipe 2, and part of the gas increases the pressure to the solid ionized seed storage tank 8 through the pressurization pipeline 9, so that the ionized seeds in the solid ionized seed storage tank 8 can enter the ionized seed output pipeline 7 under the action of high pressure in the solid ionized seed storage tank 8 and the injection action of high-speed flowing gas flow of the non-return pipeline 3, and then the gas is converged by the gas flow of the non-return pipeline 3 and is injected into the gas generator 1 through the ionized seed injection spray pipe 2. The non-return pipeline 3 is used as a normally open circuit, so that high-pressure airflow always flows to the fuel gas generator 1 through the ionized seed injection nozzle 2, flame is prevented from flowing back, and injected ionized seeds are more uniform and dispersed. The partial pressure pipeline 4 is used for adjusting the pressure and the flow rate of the non-return pipeline 3, and the discharging device 5 is used for discharging the residual ionized seeds in the ionized seed output pipeline 7.

In summary, the present invention employs the solid-state ionization seed injection device, which can effectively avoid OH^-And O, H atoms, preventing OH^-And O, H adsorption of electrons by atoms, thereby increasing the value of conductivity.

Although the preferred embodiments of the present invention have been described in detail with reference to the accompanying drawings, the present invention is not limited to the above embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the spirit of the present invention.

Many other changes and modifications can be made without departing from the spirit and scope of the invention. It is to be understood that the invention is not to be limited to the specific embodiments, but only by the scope of the appended claims.