CN203883658U - Thermoacoustic three-phase AC power generating system driven by dual-temperature heat source - Google Patents
Thermoacoustic three-phase AC power generating system driven by dual-temperature heat source Download PDFInfo
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- CN203883658U CN203883658U CN201420274150.7U CN201420274150U CN203883658U CN 203883658 U CN203883658 U CN 203883658U CN 201420274150 U CN201420274150 U CN 201420274150U CN 203883658 U CN203883658 U CN 203883658U
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Abstract
The utility model discloses a thermoacoustic three-phase AC power generating system driven by a dual-temperature heat source, which comprises a magnetofluid power generating device and a thermoacoustic converting device that forms a loop. A phase-changeable working medium is filled in the loop. The liquid phase of the phase-changeable working medium is used as the working medium of the magnetofluid power generating device, and the gas phase of the phase-changeable working medium is used as the working medium of the thermoacoustic converting device. The magnetofluid power generating device and the thermoacoustic converting device which is matched with the magnetofluid power generating device are used as a loop unit. The thermoacoustic three-phase AC power generating system is provided with at least two loop units. The loop units are respectively communicated with the phase-changeable working medium. A gas-liquid-phase changing thermoacoustic converting mechanism generates a certain amount of acoustic power, and then a travelling wave thermoacoustic engine is used as an amplifying grade for amplifying the generated acoustic power. Difference between heating temperatures of a middle-temperature heat exchanger and a high-temperature heat exchanger can realize utilization of the dual-temperature heat source, thereby driving the thermoacoustic three-phase AC power generating system to work, and improving utilization rate of middle-temperature and low-temperature low-grade heat sources. Gas-liquid phase transition exists in the thermoacoustic three-phase AC power generating system. The thermoacoustic three-phase AC power generating system has a self-adaptive adjusting capability.
Description
Technical field
The utility model relates to electricity generation system, relates in particular to the hot sound three phase AC power generating system that a kind of pair of potential temperature thermal source drives.
Background technology
Thermoacoustic engine owing to there is no mechanical moving element, simple in structure, reliable, the life-span is long, is study hotspot in recent years.Just there is blank in traveling wave thermoacoustic engine, but because regenerator place acoustic reactance is lower, operational vibration speed is larger, causes serious viscosity loss, thereby has limited engine efficiency before more than 200 years.The hot acoustic Stirling engine that the people such as the Backhaus of this my Mo Si National Laboratory of U.S.'s promise and Swift propose, performance has had significant raising, but the resonatron of standing wave is still its major part, and size is conventionally larger, axial dimension is about 4m-10m, and the energy wherein storing cannot utilize but directly dissipate.
The current gas-liquid Coupling Thermal phonomotor of newly-developed, utilizes the characteristic of the high density mass inertia of liquid refrigerant, as phonoreception, replaces traditional gas working medium resonatron.
Publication number is that the Chinese patent literature of CN101282074A discloses a kind of sound-heat liquid magnetofluid AC generating system, the liquid magnetofluid generator that comprises thermoacoustic engine, the resonatron of described thermoacoustic engine be coupling in described magnetofluid AC generating machine, for holding an openend of the pipeline of liquid magnetofluid, this pipeline is placed in magnetic field, when liquid magnetofluid is flowed in pipeline, cutting magnetic line produces electric energy, it is characterized in that, the working medium of described thermoacoustic engine is gas working medium.
Publication number is that the Chinese patent literature of CN101309040A discloses a kind of thermoacoustic driving magnetohydrodynamic electricity generation system that adopts ionic liquid at room temperature, comprise the hot sound core of the capable ripple of the first loop, resonatron, ionic liquid at room temperature, Blast Furnace Top Gas Recovery Turbine Unit (TRT) and the hot sound core of the capable ripple of the second loop that connect successively, also comprise simultaneously and be connected in two frequency regulators between the hot sound core of row ripple.The hot sound core of the capable ripple of loop comprises feedback pipe, phonoreception pipe, acoustic capacitance pipe, the first water cooler connecting successively.Blast Furnace Top Gas Recovery Turbine Unit (TRT) is comprised of rectangle stainless steel outer sleeve, insulating interlayer, permanent magnet, electrode and pigtail splice, also comprises the ionic liquid at room temperature of rectilinear oscillation simultaneously.Frequency regulator is connected to the hot sound core of row ripple by two air reservoirs with adjuster valve by two break valves.
For solve resonatron longer dimension under traditional thermoacoustic engine low frequency, with the series of problems such as load matched difficulty, the people such as physics and chemistry technical research institute of Chinese Academy of Sciences sieve two storehouses have proposed novel solution-air double acting traveling wave thermoacoustic engine, three identical thermoacoustic engines are connected into loop, and the middle U-shaped resonatron that includes liquid piston that adopts connects.
Publication number is that the Chinese patent literature of CN103147949A discloses a kind of hot sound double acting oil lubrication electricity generation system, has the elementary cell of at least three grades of serial connections, and every grade of elementary cell forms by Sonic heat changing device, resonance device and oil lubrication generator; Sonic heat changing device is comprised of the first room temperature transducer connecting successively, regenerator, non-room temperature heat exchanger, thermal buffer tube and the second room temperature heat exchanger; The in-built immiscible liquid A of double u-tube and the liquid B of resonance device; In three VERTICAL TUBE of double u-tube, on liquid level, there is respectively cavity; Oil lubrication generator is connected with the cavity on liquid B liquid level; The first cavity of upper level elementary cell is connected with the first normal temperature heat exchanger of the Sonic heat changing device of next stage elementary cell, and the first cavity of final stage elementary cell is connected with the first normal temperature heat exchanger of the Sonic heat changing device of next stage elementary cell.
Although utilize loop configuration to solve the problem of acoustic power recovery, can make thermoacoustic engine obtain higher efficiency.But the topological structure of loop has the generation of direct current, may cause the overflow in U-shaped pipe, enters in core component, affect engine health operation.This structure is utilized liquid piston, mainly for utilizing the high density mass inertia of liquid working substance to carry out regulating system resonance frequency, the oscillating temperature of gas phase thermoacoustic engine, stabilized operating temperature generally higher problem still exist, and have limited the utilization for low-grade heat source.
Energy grade is the qualitative statement of energy acting ability.Generally, the essence of human use's energy is to utilize the acting of its energy, and the contained higher grade of useful component percentage of the energy is higher.Electric energy is a kind of high-grade energy, utilizes, transmits and distribute all more convenient.Thermal power generation also occupies sizable proportion in current electrical production, but because thermal power generation needs first to change through combustion of fossil fuel, intermediate link is many, and conversion efficiency is low, and in process, discharges a large amount of pernicious gases, causes environmental pollution.There are a lot of pyroprocesses in industrial enterprise, a large amount of used heat of residue after production process completes, and these used heat can not get effective utilization, belong to low-grade energy.If can utilize these low-grade energy generatings, not only can save the energy that traditional heat power station consumes, cost-saving, more can play improvement effect to air pollution present situation.
Utility model content
The deficiency existing for prior art, the utility model provides a kind of pair of hot sound three phase AC power generating system that potential temperature thermal source drives, under the less driving temperature difference, realize thermoacoustic engine starting of oscillation, and stable operation, to improve the applicability of low-grade heat source in hot sound heat engine.
The technical scheme that the utility model is dealt with problems is:
A kind of pair of hot sound three phase AC power generating system that potential temperature thermal source drives, the Sonic heat changing device that comprises hydromagnetic generating device and formation loop, in described loop, being filled with can phase-change working substance, this can phase-change working substance liquid phase as the working medium of hydromagnetic generating device, gas phase that can phase-change working substance is as the working medium of Sonic heat changing device;
Described hydromagnetic generating device and the Sonic heat changing device that matches are as a loop unit, and described hot sound three phase AC power generating system has two loop unit at least, between each loop unit, be interconnected and share described in can phase-change working substance.
As preferably, described Sonic heat changing device comprises that head and the tail connect and compose high-temperature heat-exchanging, regenerator, mid temperature heat exchanger, fluid cushion pipe and the room temperature heat exchanger of loop successively, U-shaped pipe, feedback pipe and acoustic capacitance pipe; Wherein the U-shaped pipe of each loop unit is interconnected.
Sonic heat changing device comprises two parts, a part is the gas-liquid phase transition Sonic heat changing mechanism that room temperature heat exchanger, fluid cushion pipe and mid temperature heat exchanger form, and another part is the gas phase Hang Bo Sonic heat changing mechanism that high-temperature heat-exchanging, regenerator and mid temperature heat exchanger form.Gas-liquid phase transition Sonic heat changing mechanism only needs the less driving temperature difference can realize stable heat energy to the conversion of sound merit with respect to gas phase Hang Bo Sonic heat changing mechanism.Gas-liquid phase transition Sonic heat changing mechanism is as starting of oscillation mechanism and produce certain sound merit, and gas phase Hang Bo Sonic heat changing mechanism is large by sound power amplifier again.
Owing to can phase-change working substance gas-liquid phase transition the high temperature evaporation expansion producing and the effect that cryogenic condensation compresses making working medium that self-oscillation occur in thermoacoustic engine, part heat is converted into sound merit, traveling wave thermoacoustic engine is large the sound power amplifier producing as amplifying stage.
As preferably, described loop unit is three, and these three loop unit connect by threeway Y type.
The U-shaped pipe of Sonic heat changing device and threeway place that is connected three U-shaped pipes are all filled with can phase-change working substance, and liquid level that can phase-change working substance is positioned at fluid cushion pipe; In system when operation,, liquid level that can phase-change working substance can enter mid temperature heat exchanger and the room temperature heat exchanger of each loop unit, and reciprocating motion between mid temperature heat exchanger and room temperature heat exchanger, but its liquid level does not enter regenerator.By three identical basic structure Y-connections, formed, make each unit volume flow rate form 120 ° of phase differences with adjacent cells place volume flow rate respectively.
Three loop unit connect by threeway, in can flowing between three loop unit by phase-change working substance of liquid state, when one of them loop unit internal pressure is larger, its inside can phase-change working substance some be extruded in other two loop unit.When the structural parameters of three unit or heating power are when asymmetric, may cause hypertonia or too low in certain loop unit, but, in the utility model owing to there being gas-liquid phase transition in loop unit, produce periodically evaporation, condensation, can avoid one of them unit internal pressure to continue higher or on the low side, thereby there is adaptive adjustment capability.
As preferably, described can comprising solvent and provide cation and the solute of anion by phase-change working substance, the steam of solvent be can phase-change working substance gas phase.
Under can phase-change working substance normal temperature, be liquid, after heating reaches the boiling point of the solvent in can phase-change working substance, solvent evaporation becomes gas working medium.
Solvent selects affect the working temperature of gas-liquid phase transition Sonic heat changing mechanism, for example, select boiling point lower than the solvent of 100 ℃, can at the temperature lower than 100 ℃, drive gas-liquid phase transition Sonic heat changing mechanism to work.The attribute that should possess as desirable solvent is: under room temperature condition, present liquid state, the coefficient of viscosity is less, stable chemical nature; Under condition of normal pressure, boiling point is lower, and gasification latent heat is less etc.Available solvent has the low boiling point solvents such as acetone, methyl alcohol and ethanol, and the boiling point of acetone, methyl alcohol and ethanol is all lower than 100 ℃.The attribute that should possess as desirable solute is: be dissolved in form after solvent can there is good electric conductivity by phase-change working substance, Heat stability is good and solute that can phase-change working substance react with solvent.Calcium chloride, silver nitrate, barium nitrate, copper chloride, potassium chloride, sodium bromide, sodium chloride and calcium nitrate all dissolve in acetone, methyl alcohol and ethanol, and do not react with its solvent.
As preferably, described solvent is acetone, methyl alcohol or ethanol, and described solute is calcium chloride, silver nitrate, barium nitrate, copper chloride, potassium chloride, sodium bromide, sodium chloride or calcium nitrate.
Wherein, the solubility property of methyl alcohol is better than ethanol, under normal temperature, be colourless transparent liquid, under normal pressure, boiling point is 64.7 ℃, relative density is 0.7915 (20/4 ℃), viscosity (20 ℃) is 0.5945mPas, and calcium nitrate therein solubility is up to 138.0 (g/100g methyl alcohol), preferred, described solvent is methyl alcohol, and described solute is calcium nitrate.
Calcium nitrate is dissolved in the methanol solution of the formation of methanol calcium nitrate, the methanol solution of this calcium nitrate be exactly a kind of can phase-change working substance, because the evaporating temperature of methyl alcohol is 64.7 ℃, can at the temperature lower than 100 ℃, drive the work of gas-liquid phase transition Sonic heat changing mechanism, that is to say that the heating-up temperature of mid temperature heat exchanger needs is lower than 100 ℃.The methyl alcohol of gaseous state is the working medium of gas phase Hang Bo Sonic heat changing mechanism, gas phase Hang Bo Sonic heat changing mechanism can be at the temperature of 200 ℃ to 300 ℃ steady operation, that is to say that high-temperature heat-exchanging heating-up temperature is 200 ℃ to 300 ℃.The heat source temperature needing due to mid temperature heat exchanger is lower than high-temperature heat-exchanging, and mid temperature heat exchanger and high-temperature heat-exchanging are simultaneously to system heating, can realize two potential temperature thermal source utilizations, drive unit work, the utilance of low-temperature level low-grade heat source in can improving.
Due to the temperature of the high-temperature heat-exchanging temperature higher than mid temperature heat exchanger, mid temperature heat exchanger can be used as the low-temperature heat source of gas phase traveling wave engine.Come from gas phase steam that the temperature of high-temperature heat-exchanging is higher in the heat release of mid temperature heat exchanger place, release heat can be used as the driving heat of gas-liquid phase transition Sonic heat changing mechanism, strengthening gas-liquid phase transition Sonic heat changing process, the sound merit of output increases, and drives the work of gas phase traveling wave thermoacoustic engine.
Mid temperature heat exchanger is the high-temperature heat-exchanging end of gas-liquid phase transition Sonic heat changing mechanism, is again the room temperature heat exchanger end of gas phase Hang Bo Sonic heat changing mechanism.By regulating the heat that adds of high-temperature heat-exchanging, make gas phase Hang Bo Sonic heat changing mechanism at mid temperature heat exchanger place thermal discharge lower than gas-liquid phase transition Sonic heat changing mechanism at mid temperature heat exchanger place thermal discharge, make system in the heat absorption of mid temperature heat exchanger place, realize the utilization of lower temperature position thermal source.
For preventing entering in gas phase Hang Bo Sonic heat changing mechanism because liquid level vibration makes liquid, can adopt between regenerator and mid temperature heat exchanger elastic membrane is set, this elastic membrane can allow gas pass through to stop liquid to pass through simultaneously, but increase elastic membrane and can affect operating efficiency, elastic membrane cost is high, and when working temperature is higher, its less stable.Therefore reasonable mode is that mid temperature heat exchanger is lengthened, other heat exchangers are consistent with conventional heat exchanger length, because fluid cross-section is small bore, it is not serious that liquid splash enters the situation of regenerator, according to real work situation, suitable lengthening mid temperature heat exchanger can effectively prevent that liquid level vibration from enter in gas phase Hang Bo Sonic heat changing mechanism liquid.
Solute forms cation and anion after being dissolved in solvent, thereby can in the liquid phase of phase-change working substance, contain cation and anion, with cation and anion can phase-change working substance during at a high speed through magnetic induction line in hydromagnetic generating device, effect due to Lorentz force, cation and anion are respectively to two electrode skews, so positive charge and negative electrical charge are accumulated respectively and produce voltage between the two poles of the earth on two electrodes, will just can form Circuits System in voltage place in circuit with wire.Due to what can phase-change working substance do, be periodically variable reciprocating motion, what therefore form is alternating current.The structure of hydromagnetic generating device comprises symmetrical permanent magnet and the electrode between two permanent magnets, and electrode surrounded can phase-change working substance passage.
As preferably, being provided with for a pair of permanent magnet of magnetic induction line is provided of described hydromagnetic generating device, this permanent magnet has domes.The passage that the permanent magnet of electrode and arch surrounds is larger, and the unit interval is flow through the can phase-change working substance more of hydromagnetic generating device, can produce larger electric current.
As preferably, the voltage swing that the hydromagnetic generating device in described three loop unit produces equates and 120 ° of phase place mutual deviations.
The sound merit that Sonic heat changing device produces drive liquid can phase-change working substance reciprocating motion in pipeline, through hydromagnetic generating device, can produce electric energy by phase-change working substance cutting magnetic induction line.In electronic engineering, three-phase alternating current is generally by three electric power systems that frequency is identical, electromotive force amplitude equates, the alternating current circuit of phase difference mutual deviation hexagonal angle forms.As a rule, three-phase alternating current divides two kinds of delta connection (Δ) and wye connections (Y).Delta connection is each phase power supply is joined end to end successively, forms three square rings; Wye connection is that one end of each phase power supply is connected to a bit, forms a neutral point, and this connection is called again three-phase three-wire system.If draw a neutral line from this neutral point, total becomes three-phase four-wire system again.Two kinds of circuit can change, i.e. Y-Δ conversion or be called variable star angle is a kind of wye-circuit to be converted to equivalent Δ shape circuit, or Δ shape circuit conversion are become to the method for equivalent wye-circuit.
Known according to electro-acoustical analogy, fluid pressure difference P is compared into voltage U, flow Q
mcompare into electric current I, flow resistance R
m, fluid capacitance C
mwith influenza L
manalogy is resistance R, capacitor C and inductance L respectively, can be by the anti-Z of stream
m=R
m-j/ ω C
m+ j ω L
manalogy is impedance Z.
By three each emf phases of hydromagnetic generating device, be E
a, E
b, E
cequivalent Y-connection symmetrical threephase source.The electromotive force of power supply is E'
a, E'
b, E'
c.If take into account the anti-Z of the internal resistance of source
i, Z '
i=Z
i/ 3, each emf phase is:
, amplitude identical for parameter frequencies such as the pressure of Oscillating flow in three elementary cells of existing loop traveling wave thermoacoustic engine, speed equates, 120 ° of phase place mutual deviations.According to electric circuit knowledge, existing loop traveling wave thermoacoustic engine can be converted into star structure.Therefore, the flowing velocity of liquid working substance in each loop unit is, the pressure and other parameters of gaseous working medium is all pressed sinusoidal rule variation, wherein pressure and speed homophase in time.Because the structure of three loop unit is identical, therefore, in three loop unit, the parameter frequency such as the pressure of Oscillating flows, speed is identical, amplitude equates, 120 ° of phase place mutual deviations.Under the effect of electromagnetic induction, three loop unit produce the voltage of 120 ° of phase phasic differences.According to electromagnetic induction formula: E=BLv, the Changing Pattern of known output electromotive force E is identical with the Changing Pattern of Oscillating flow speed v in addition, and the frequency of oscillation of Sonic heat changing device is the frequency of output voltage.By wire, the circuit of three hydromagnetic generating devices is drawn according to above-mentioned delta connection (Δ) and is connected with wye connection (Y), form the alternating current that similar existing ac power generation produces.
The beneficial effects of the utility model are: with gas-liquid phase transition Sonic heat changing mechanism, produce a certain amount of sound merit, then it is large the sound power amplifier producing as amplifying stage to using traveling wave thermoacoustic engine.Mid temperature heat exchanger is different from high-temperature heat-exchanging heating-up temperature, can realize two potential temperature thermal source utilizations, drive system work, the utilance of low-temperature level low-grade heat source in can improving.Installed System Memory, at gas-liquid phase transition, produces periodically evaporation, condensation, can avoid one of them unit internal pressure to continue higher or on the low side, has adaptive adjustment capability.
Accompanying drawing explanation
Fig. 1 is the structural representation of the hot sound three phase AC power generating system of of the present utility model pair of potential temperature thermal source driving;
Fig. 2 is the schematic cross-section of hydromagnetic generating device in the hot sound three phase AC power generating system that drives of the of the present utility model pair of potential temperature thermal source;
Fig. 3 be the circuit of the hot sound three phase AC power generating system that drives of the of the present utility model pair of potential temperature thermal source while adopting triangle to connect with the figure that contrasts of conventional alternator;
Fig. 4 be the circuit of the hot sound three phase AC power generating system that drives of the of the present utility model pair of potential temperature thermal source while adopting star-like connection with the figure that contrasts of conventional alternator;
Fig. 5 is displacement, speed and the pressure vibration figure of the Traveling wave of the hot sound three phase AC power generating system that drives of the of the present utility model pair of potential temperature thermal source;
Fig. 6 is the three phase sine voltage pattern of the hot sound three phase AC power generating system of of the present utility model pair of potential temperature thermal source driving.
Reference numeral:
1 is high-temperature heat-exchanging, and 2 is regenerator, and 3 is mid temperature heat exchanger, and 4 is fluid cushion pipe, 5 is room temperature heat exchanger, 6 methanol solutions that are calcium nitrate, and 7 is U-shaped pipe, 8 is feedback pipe, 9 is acoustic capacitance chamber, and 10 is hydromagnetic generating device, and 11 is threeway, and 12 is insulating interlayer, 13 is permanent magnet, and 14 is vent valve, and 15 is liquid feed valve, and 16 is prefill valve, 17 is liquid level gauge, and 18 is electrode, and 19 is pigtail splice, and 20 is wire, 21 is insulating case, and 22 is stainless steel outer sleeve, and 23 is passage.
Embodiment
Below in conjunction with specific embodiment, the utility model is described in further detail.
As shown in Figure 1, the hot sound three phase AC power generating system that two potential temperature thermals source drive comprises three loop unit that structure is identical, is respectively loop unit a, loop unit b and loop unit c, and each loop unit comprises Sonic heat changing device and hydromagnetic generating device.
Sonic heat changing device comprises high-temperature heat-exchanging 1, regenerator 2, mid temperature heat exchanger 3, fluid cushion pipe 4, room temperature heat exchanger 5, U-shaped pipe 7, the feedback pipe 8 harmony cavity volumes 9 that head and the tail connect.Wherein high-temperature heat-exchanging 1, regenerator 2, mid temperature heat exchanger 3, fluid cushion pipe 4 and room temperature heat exchanger 5 are for being connected successively from top to bottom, and U-shaped pipe 7 is connected to the lower end of room temperature heat exchanger 5.
The methanol solution 6 that has calcium nitrate in U-shaped pipe 7, is provided with hydromagnetic generating device 10 in U-shaped pipe 7, hydromagnetic generating device 10 has the passage that allows the methanol solution 6 of calcium nitrate to pass.
It in Fig. 1, is only the position relationship of showing between each loop unit for convenient, in actual conditions, loop unit is all vertical layouts, so that liquid phase that can phase-change working substance is positioned at the bottom of loop unit, threeway and hydromagnetic generating device are all positioned at the bottom of loop unit.
The start-up course of introducing system and operation principle below.
Before the hot sound three phase AC power generating system operation of of the present utility model pair of potential temperature thermal source driving, first open vent valve 14 and liquid feed valve 15, close prefill valve 16, utilize vacuum pump to find time by 14 pairs of systems of vent valve.After completing and finding time, close vent valve 14, open prefill valve 16, the annotate methanol solution of calcium nitrate, and enter the amount of liquid of system by liquid level gauge 17 monitoring, when intrasystem liquid level is higher than mid temperature heat exchanger lower end and reach after set point, close liquid feed valve 15 and prefill valve 16.
Complete after liquid filling, utilize mid temperature heat exchanger 3 heating to three loop unit simultaneously of industrial exhaust heat or used heat, temperature surpasses after certain threshold values (boiling point of methyl alcohol), methyl alcohol start vaporizer, and wherein the steam of methyl alcohol is as the working medium of gas phase thermoacoustic engine.By 3 pairs of systems of mid temperature heat exchanger, carry out continuous heating, liquid level after certain hour in U-shaped pipe 7 is lower than mid temperature heat exchanger 3,3 of mid temperature heat exchangers contact with the steam of methyl alcohol and the steam heated to methyl alcohol, in pipe methanol vapor in high temperature with lower than mid temperature heat exchanger 3 and the liquid methanol heat exchange in low-temperature condition, liquid methanol continues evaporation, and intrasystem pressure increases gradually.
The evaporation capacity of methyl alcohol reaches after set point, because the minimizing of liquid methanol and the increase of gaseous methanol make liquid level position lower than room temperature heat exchanger 5, unlatching room temperature heat exchanger 5 carries out cooling, and it is cooling that room temperature heat exchanger 5 can adopt cooling water to carry out, and the temperature of room temperature heat exchanger 5 remains at room temperature.
Formation temperature gradient between room temperature heat exchanger 5 and mid temperature heat exchanger 3, when temperature gradient surpasses after certain critical value, vibrates in system.Methanol vapor contact room temperature heat exchanger 5 rear temperature in U-shaped pipe 7 reduce and are condensed into liquid state, and U-shaped pipe 7 internal pressures decline and cause liquid level to go up to contact mid temperature heat exchanger 3, and liquid methanol is evaporation again after contacting with mid temperature heat exchanger 3.
While there is vibration in system, liquid level lifting between mid temperature heat exchanger 3 and room temperature heat exchanger 5, the liquid methanol evaporation of absorbing heat from high temperature heat source, gaseous methanol is in the heat release condensation of low-temperature heat source place.
Intrasystem oscillation action makes the liquid generation reciprocating motion in the U-shaped pipe of single loop unit, in addition because three U-shaped pipes 7 connect by threeway 11, during vibration, the methanol solution of calcium nitrate flows between three loop unit by threeway, 120 ° of three unit phase phasic differences, the interior level change of one of them U-shaped pipe 7, the liquid level of connected two unit is affected by phase difference, liquid level raises or reduces, methyl alcohol execution cycle property evaporative condenser in this unit in arbitrary unit, realizes the output of sound merit simultaneously.
As shown in Figure 2, hydromagnetic generating device is permanent magnet 13, insulating interlayer 12 and stainless steel outer sleeve 22 from inside to outside successively, is electrode 18 between permanent magnet, and electrode 18 is connected with pigtail splice 19, and pigtail splice 19 outsides are surrounded by insulating case 21.Wherein permanent magnet 13 is arch, and permanent magnet 13 fits with insulating interlayer 12, and permanent magnet 13 and electrode 18 surround passage 23, and the methanol solution of calcium nitrate is interior when mobile at passage 23, and the cation in the methanol solution of calcium nitrate and anion all can be subject to Lorentz force.
In system in oscillatory process, the reciprocating motion in hydromagnetic generating device Tong 23 roads of the methanol solution of calcium nitrate, and the direction of motion of solution is vertical with magnetic induction line, according to left hand rule, can judge cation and the anion motion in the opposite direction respectively of solution, and finally be parked on corresponding electrode.Because the methanol solution of calcium nitrate is reciprocating in the passage 23 of hydromagnetic generating device, thus hydromagnetic generating device produces is alternating current.
By wire, two electrodes of three hydromagnetic generating devices are coupled together according to certain way, can form the power supply of similar conventional alternator.
As shown in Figure 3, the delta connection of conventional alternator is that each phase winding is joined end to end successively, and each connected point is drawn, three phase lines as three-phase electricity, connection of the present utility model is that three hydromagnetic generating devices are connected by delta connection, again three wires are connected between three hydromagnetic generating devices, form the similar Circuits System of delta connection with conventional alternator.
As shown in Figure 4, conventional alternator star connection is that one end of each phase winding is all connected on a bit above, and their other end is as lead-out wire, is respectively three phase lines; The utility model adopts similar connection, a wherein wire of three hydromagnetic generating devices is linked together, with three wires, connect respectively again another root wire of hydromagnetic generating device, form the similar Circuits System of wye connection with conventional AC Blast Furnace Top Gas Recovery Turbine Unit (TRT).
Because each hydromagnetic generating device can be drawn two wires, two kinds of different modes that can need to provide by Fig. 3 or Fig. 4 according to actual user connect.Star connection, because power output is little, is usually used in small-power, and high pulling torque motor, or standby during the starting of the larger motor of power are less to machine loss like this, after normal work, use delta connection instead again.
As shown in Figure 5, top is the Velocity-time relation curve of liquid flow in loop unit, below is loop unit internal pressure-time curve, and the speed of the hot sound Oscillating flow of unit inner fluid and the pressure in unit all change by sinusoidal rule, and pressure and speed homophase.Because three basic cell structures are identical, therefore, in three elementary cells, the parameter frequency such as the pressure of Oscillating flows, speed is identical, amplitude equates, 120 ° of phase place mutual deviations.According to electromagnetic induction formula: E=BLv, the Changing Pattern of known output electromotive force E is identical with the Changing Pattern of Oscillating flow speed v in addition, and the frequency of oscillation of Sonic heat changing device is the frequency of output voltage.
As shown in Figure 6, A, B, C represent respectively the voltage E that the hydromagnetic generating device of loop unit a produces
a, loop unit a the voltage E that produces of hydromagnetic generating device
bthe voltage E producing with the hydromagnetic generating device of loop unit a
c, E
a, E
band E
csize is the same, 120 ° of phase place mutual deviations.
The above-mentioned description to embodiment is can understand and apply the utility model for ease of those skilled in the art.Person skilled in the art obviously can easily make various modifications to above-described embodiment, and General Principle described herein is applied in other embodiment and needn't passes through performing creative labour.Therefore, the utility model is not limited to above-described embodiment, and those skilled in the art are according to announcement of the present utility model, and the improvement of making for the utility model and modification all should be within protection ranges of the present utility model.
Claims (8)
1. the hot sound three phase AC power generating system that two potential temperature thermals source drive, the Sonic heat changing device that comprises hydromagnetic generating device and formation loop, it is characterized in that: in described loop, being filled with can phase-change working substance, this can phase-change working substance liquid phase as the working medium of hydromagnetic generating device, gas phase that can phase-change working substance is as the working medium of Sonic heat changing device;
Described hydromagnetic generating device and the Sonic heat changing device that matches are as a loop unit, and described hot sound three phase AC power generating system has two loop unit at least, between each loop unit, be interconnected and share described in can phase-change working substance.
2. the hot sound three phase AC power generating system that the as claimed in claim 1 pair of potential temperature thermal source drives, it is characterized in that: described Sonic heat changing device comprises that head and the tail connect and compose high-temperature heat-exchanging, regenerator, mid temperature heat exchanger, fluid cushion pipe and the room temperature heat exchanger of loop successively U-shaped pipe, feedback pipe and acoustic capacitance pipe; Wherein the U-shaped pipe of each loop unit is interconnected.
3. the as claimed in claim 1 pair of hot sound three phase AC power generating system that potential temperature thermal source drives, is characterized in that: described loop unit is three, and these three loop unit connect by threeway Y type.
4. the hot sound three phase AC power generating system that the as claimed in claim 1 pair of potential temperature thermal source drives, is characterized in that: described can comprising solvent and provide cation and the solute of anion by phase-change working substance, the steam of solvent be can phase-change working substance gas phase.
5. the as claimed in claim 4 pair of hot sound three phase AC power generating system that potential temperature thermal source drives, is characterized in that: described solvent is acetone, methyl alcohol or ethanol; Described solute is calcium chloride, silver nitrate, barium nitrate, copper chloride, potassium chloride, sodium bromide, sodium chloride or calcium nitrate.
6. the as claimed in claim 5 pair of hot sound three phase AC power generating system that potential temperature thermal source drives, is characterized in that: described solvent is methyl alcohol, and described solute is calcium nitrate.
7. the as claimed in claim 1 pair of hot sound three phase AC power generating system that potential temperature thermal source drives, is characterized in that: described hydromagnetic generating device is provided with for a pair of permanent magnet of magnetic induction line is provided, and this permanent magnet has domes.
8. the hot sound three phase AC power generating system that the as claimed in claim 3 pair of potential temperature thermal source drives, is characterized in that: the voltage swing that the hydromagnetic generating device in described three loop unit produces equates and 120 ° of phase place mutual deviations.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201420274150.7U CN203883658U (en) | 2014-05-26 | 2014-05-26 | Thermoacoustic three-phase AC power generating system driven by dual-temperature heat source |
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| CN201420274150.7U CN203883658U (en) | 2014-05-26 | 2014-05-26 | Thermoacoustic three-phase AC power generating system driven by dual-temperature heat source |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104079142A (en) * | 2014-05-26 | 2014-10-01 | 浙江大学 | Thermo-acoustic three-phase alternating current generating system driven by double-temperature-position heat source |
| CN104847608A (en) * | 2015-04-09 | 2015-08-19 | 中国科学院理化技术研究所 | Multi-level traveling wave thermoacoustic engine system for flue gas waste heat |
| CN105810985A (en) * | 2016-03-07 | 2016-07-27 | 大连理工大学 | Ternary working substance pair applicable to inverse electrodialysis type thermal-electric conversion system |
| CN105865080A (en) * | 2016-05-24 | 2016-08-17 | 浙江大学 | Low-grade heat energy converter for thermo-acoustic drive |
| CN106286004A (en) * | 2016-09-29 | 2017-01-04 | 佛山市程显科技有限公司 | A kind of polyphase ac thermal-magnetic power generation system of Thermoacoustic engine |
| CN114687882A (en) * | 2020-12-29 | 2022-07-01 | 中国科学院理化技术研究所 | Efficient loop type gas-liquid coupling thermoacoustic system |
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2014
- 2014-05-26 CN CN201420274150.7U patent/CN203883658U/en not_active Withdrawn - After Issue
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104079142A (en) * | 2014-05-26 | 2014-10-01 | 浙江大学 | Thermo-acoustic three-phase alternating current generating system driven by double-temperature-position heat source |
| CN104079142B (en) * | 2014-05-26 | 2016-06-22 | 浙江大学 | The thermoacoustic three phase AC power generating system that a kind of dual temperature position thermal source drives |
| CN104847608A (en) * | 2015-04-09 | 2015-08-19 | 中国科学院理化技术研究所 | Multi-level traveling wave thermoacoustic engine system for flue gas waste heat |
| CN105810985A (en) * | 2016-03-07 | 2016-07-27 | 大连理工大学 | Ternary working substance pair applicable to inverse electrodialysis type thermal-electric conversion system |
| CN105810985B (en) * | 2016-03-07 | 2018-07-06 | 大连理工大学 | Suitable for the ternary working medium pair of inverse electrodialysis formula thermo-electrically converting system |
| CN105865080A (en) * | 2016-05-24 | 2016-08-17 | 浙江大学 | Low-grade heat energy converter for thermo-acoustic drive |
| CN105865080B (en) * | 2016-05-24 | 2019-04-02 | 浙江大学 | The low grade heat energy converter of Thermoacoustic engine |
| CN106286004A (en) * | 2016-09-29 | 2017-01-04 | 佛山市程显科技有限公司 | A kind of polyphase ac thermal-magnetic power generation system of Thermoacoustic engine |
| CN106286004B (en) * | 2016-09-29 | 2018-06-22 | 佛山市程显科技有限公司 | A kind of polyphase ac thermal-magnetic power generation system of Thermoacoustic engine |
| CN114687882A (en) * | 2020-12-29 | 2022-07-01 | 中国科学院理化技术研究所 | Efficient loop type gas-liquid coupling thermoacoustic system |
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