CN108123587A - A kind of bimodulus multistage liquid metal magnetohydrodynamic generation system and its method of work - Google Patents
A kind of bimodulus multistage liquid metal magnetohydrodynamic generation system and its method of work Download PDFInfo
- Publication number
- CN108123587A CN108123587A CN201810127402.6A CN201810127402A CN108123587A CN 108123587 A CN108123587 A CN 108123587A CN 201810127402 A CN201810127402 A CN 201810127402A CN 108123587 A CN108123587 A CN 108123587A
- Authority
- CN
- China
- Prior art keywords
- level
- liquid metal
- low boiling
- working fluid
- entrance
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K44/00—Machines in which the dynamo-electric interaction between a plasma or flow of conductive liquid or of fluid-borne conductive or magnetic particles and a coil system or magnetic field converts energy of mass flow into electrical energy or vice versa
- H02K44/08—Magnetohydrodynamic [MHD] generators
- H02K44/085—Magnetohydrodynamic [MHD] generators with conducting liquids
Abstract
The invention discloses a kind of bimodulus multistage liquid metal magnetohydrodynamic generation system and its method of works, belong to comprehensive utilization of energy field.The system can heat certain liquid metal first, be allowed to first occur partly to vaporize, power channel power generation is flowed through in a manner of self-propelled using biomass energy, nuclear reactor etc. as heat source；Then using the liquid metal after power generation as heat source, mixed with low boiling working fluid and be allowed to evaporate, continued to press on liquid metal and flow through the power generation of next stage power channel, until liquid metal temperature, which is down to, is no longer appropriate for the heat source as low boiling working fluid.The present invention by using bimodulus multistage liquid metal magnetohydrodynamic generation mode, all kinds of energy can be more fully converted into high-grade electric energy with the strategy of cascade utilization, energy conservation and environmental protection, the generation technology route of good economy performance are formed, is advantageously implemented the efficient utilization of the energy.
Description
Technical field
The present invention relates to the system and its method of work of a kind of liquid metal magnetohydrodynamic generation more particularly to a kind of bimodulus are more
Grade liquid metal magnetohydrodynamic generation system and its method of work, belong to comprehensive utilization of energy field.
Background technology
There are mainly two types of form, high temperature plasma gas Magnetohydrodynamic(MHD) generator and liquid metal magnetohydrodynamics for Magnetohydrodynamic(MHD) generator
(Liquid Metal MagnetoHydroDynamics, abbreviation LMMHD) generator, the former is with the gaseous conductor of thermal ionization
It is very high to heat source temperature requirement for working medium, usually at 3000 DEG C or more.Liquid metal compares high-temperature ionized gas, has conduction
Rate is high, and specific heat is big, requires the advantages that relatively low to heat source temperature, therefore heat source applicatory is more extensive.
And since liquid metal has certain viscosity, it is therefore desirable to which phase transformation generates bubble, the gas of expansion in liquid metal
Bubble promotes liquid metal to flow fast through the power generation of power channel cutting magnetic induction line as multiple-piston pump.At present, common solution
Scheme is that mixing is contacted with high temperature fluent metal using liquid low boiling working fluid, and it is logical that the former heated vaporization promotes the latter to enter power generation
Road generates electricity.But this scheme needs to carry out two-phase point to liquid metal and gaseous state low boiling working fluid after power channel in fluid
From reentering mixer through respective circuit again after separation, add the complexity of system.
Inventor proposes, when heat source temperature is higher than liquid metal boiling point, liquid metal itself can be used and produced by thermal evaporation
Anger bubble is as motive force, and system can only have a circuit, separator is not required, simple and compact for structure, and stability is good；And by
In participating in for no low boiling working fluid, the conductivity of liquid metal fluid is higher, and generating effect is more preferable.The heat source selection of this scheme
Property is also relatively wide, either the regenerative resources such as solar energy, biomass energy or coal, oil, nuclear energy etc.
Non-renewable energy resources.For example biomass can generate the products such as methane, ethyl alcohol or diesel oil, product combustion through different preparation of fuel technologies
Flue-gas temperature after burning can reach nearly 2000 DEG C；Moderator is for another example made with graphite, helium makees cooling agent, uranium makees the core of nuclear fuel
Reactor, core temperature is very high, and helium outlet temperature is up to 1000 DEG C.And some liquid metal boiling points are relatively low, such as the boiling of potassium
Only 800 DEG C or so of point, above-mentioned heat source is enough to be vaporized or part vaporizes.But in this scheme, fluid is logical by power generation
Behind road still there is higher temperature, have more thermal energy not reach and make full use of.
The content of the invention
Goal of the invention：
For the deficiency in above-mentioned technology, particularly liquid metal spontaneous evaporation is self-propelled flow through power channel power generation after, temperature
Degree is still higher, and the present invention proposes a kind of bimodulus multistage liquid metal magnetohydrodynamic generation system and its method of work, can will be all kinds of
Heat source is more fully converted into high-grade electric energy with the strategy of cascade utilization, forms energy conservation and environmental protection, the generation technology of good economy performance
Route is advantageously implemented the efficient utilization of the energy.
Technical solution：
A kind of bimodulus multistage liquid metal magnetohydrodynamic generation system (such as Fig. 1) pushes away certainly including the spontaneous evaporation of zero level liquid metal
Dynamic power generation sub-system, the evaporation of level-one low boiling working fluid promote power generation sub-system, condensation subsystem, and the zero level liquid metal steams certainly
It is pumped from power generation sub-system is promoted to include liquid metal by hot vaporizer, zero level magnetohydrodynamic generator passage and zero level MHD, described one
Grade low boiling working fluid evaporation promotes power generation sub-system to include level-one mixer, level-one valve, level-one magnetohydrodynamic generator passage and one
Grade separator, the condensation subsystem include condenser, working medium pump；The outlet of zero level MHD pump and the liquid metal by
The entrance connection of hot vaporizer, the liquid metal are connected by the outlet of hot vaporizer and the entrance of zero level magnetohydrodynamic generator passage
It connects, the outlet of zero level magnetohydrodynamic generator passage is connected with the metal gas-liquid two-phase inflow entrance of level-one mixer, level-one mixer
Outlet is connected with the entrance of level-one magnetohydrodynamic generator passage, the outlet of level-one magnetohydrodynamic generator passage and the entrance of primary separator
Connection；The liquid metal outlet of primary separator is connected with the zero level MHD entrances pumped, the gaseous state low boiling working fluid of primary separator
Outlet is connected with the gaseous state low boiling working fluid entrance of condenser；The liquid low boiling working fluid outlet of condenser and the entrance of working medium pump
Connection, the outlet of working medium pump are connected through level-one valve with the liquid low boiling working fluid entrance of level-one mixer, the cooling of condenser
Medium inlet cools down media outlet to export cooling medium to input cooling medium.
A kind of bimodulus multistage liquid metal magnetohydrodynamic generation system, including self-propelled power generation of zero level liquid metal spontaneous evaporation
System, the evaporation of level-one low boiling working fluid promote power generation sub-system, the evaporation of two level low boiling working fluid to promote N grades of power generation sub-system ... low
The evaporation of boiling point working medium promotes power generation sub-system, condensation subsystem, and wherein N is the natural number more than or equal to 2, the zero level liquid gold
Belong to the self-propelled power generation sub-system of spontaneous evaporation to be pumped by hot vaporizer, zero level magnetohydrodynamic generator passage and zero level MHD including liquid metal,
The level-one low boiling working fluid evaporation promotes power generation sub-system to lead to including level-one mixer, level-one valve, level-one magnetohydrodynamic generator
Road and primary separator, two level low boiling working fluid evaporation promote power generation sub-system include two level MHD pumps, secondary mixer,
Two level magnetohydrodynamic generator passage, second-stage separator, two level valve, and so on, the N grades of low boiling working fluid evaporation promotes power generation
Subsystem includes N grades of MHD pumps, N grades of mixers, N grades of magnetohydrodynamic generator passages, N grades of separators, N grades of valves, the condensation subsystem
System includes condenser, working medium pump；The outlet of the zero level MHD pumps is connected with the liquid metal by the entrance of hot vaporizer, institute
Liquid metal is stated to be connected with the entrance of zero level magnetohydrodynamic generator passage by the outlet of hot vaporizer, zero level magnetohydrodynamic generator passage
Outlet is connected with the metal gas-liquid two-phase inflow entrance of level-one mixer, the outlet of level-one mixer and level-one magnetohydrodynamic generator passage
Entrance connection, the outlet of level-one magnetohydrodynamic generator passage connects with the entrance of primary separator, and the gaseous state of primary separator is low
Boiling point sender property outlet is connected by pipeline branch crossing with the gaseous state low boiling working fluid entrance of condenser, the liquid gold of primary separator
The entrance for belonging to outlet with two level MHD pumps connects, and the outlet of two level MHD pumps is connected with the liquid metal entrance of secondary mixer, and two
The outlet of grade mixer is connected with the entrance of two level magnetohydrodynamic generator passage, the outlet of two level magnetohydrodynamic generator passage and two fractions
Entrance connection from device, and so on, the N grade MHD pumps, N grades of mixers, N grades of magnetohydrodynamic generator passages, N grades of separators and
The two level MHD pumps, secondary mixer, two level magnetohydrodynamic generator passage, second-stage separator connection mode are identical；Second-stage separator
Connected to the gaseous state low boiling working fluid outlet of N grades of separators by the gaseous state low boiling working fluid entrance of pipeline branch crossing and condenser
It connects, the liquid metal outlet of second-stage separator to N-1 grades of separators is connected respectively the entrance of the MHD pumps of next stage, N fractions
Liquid metal outlet from device is connected with the zero level MHD entrances pumped, the outlet of liquid low boiling working fluid and the working medium pump of condenser
Entrance connects, and the outlet of working medium pump connect through level-one valve with the low boiling working fluid entrance of level-one mixer, through two level valve with
The low boiling working fluid entrance connection of secondary mixer, and so on, the low boiling working fluid entrance through N grades of valves and N grades of mixers
Connection；The cooling medium inlet of the condenser cools down media outlet to export cooling medium to input cooling medium.
A kind of method of work (such as Fig. 1) of bimodulus multistage liquid metal magnetohydrodynamic generation system, includes the following steps：
Step 1：Heat source is used as by the biomass energy combustion heat, nuclear reactor heat etc., liquid metal is tieed up by hot vaporizer
It holds in a certain high temperature, liquid metal is absorbed heat in liquid metal by hot vaporizer, and after reaching boiling point part vapour occurs for temperature rise
Change, rapid spatial expansion promotes liquid metal to rapidly enter zero level magnetohydrodynamic generator passage, and Lorentz force makes Fluid pressure along zero
Grade magnetohydrodynamic generator passage declines, and liquid metal steam continues to expand under pressure drop, further promotes liquid metal cutting magnetic induction
Line generates electricity；
Step 2：Completing the liquid metal biphase gas and liquid flow speed after power generation reduces, but still with higher temperature, can make
For the heat source of low boiling working fluid, mixed into level-one mixer with low boiling working fluid, due to contacting directly, low boiling working fluid heat absorption
Vaporization, expansion generation motive force are completed, liquid metal flow velocity is made to improve again, is cut subsequently into level-one magnetohydrodynamic generator passage
Magnetic induction line generates electricity；
Step 3：The fluid-mixing of liquid metal and gaseous state low boiling working fluid after level-one magnetohydrodynamic generator passage into
Enter primary separator, the gaseous state low boiling working fluid separated enters condenser and is condensed into liquid, passes through working medium pump and one afterwards
Grade valve is delivered to level-one mixer and absorbs heat again vaporization；The liquid metal separated from primary separator is through zero level MHD
Liquid metal is pumped to by hot vaporizer, completes Xun Huan.
A kind of method of work of bimodulus multistage liquid metal magnetohydrodynamic generation system, includes the following steps：
Step 1：Heat source is used as by the biomass energy combustion heat, nuclear reactor heat etc., liquid metal is tieed up by hot vaporizer
It holds in a certain high temperature, liquid metal absorbs heat in evaporator, temperature rise, part vaporization occurs after reaching boiling point, volume is swollen rapidly
Swollen promotion liquid metal rapidly enters zero level magnetohydrodynamic generator passage, and Lorentz force makes Fluid pressure lead to along zero level magnetohydrodynamic generator
Road declines, and liquid metal steam continues to expand under pressure drop, further promotes the power generation of liquid metal cutting magnetic induction line；
Step 2：Completing the liquid metal biphase gas and liquid flow speed after power generation reduces, but still with higher temperature, can make
For the heat source of low boiling working fluid, mixed into level-one mixer with low boiling working fluid, due to contacting directly, low boiling working fluid heat absorption
Vaporization, expansion generation motive force are completed, liquid metal flow velocity is made to improve again, is cut subsequently into level-one magnetohydrodynamic generator passage
Magnetic induction line generates electricity；
Step 3：Liquid metal after level-one magnetohydrodynamic generator passage may continue as next stage low boiling working fluid
The fluid-mixing of heat source, liquid metal and gaseous state low boiling working fluid enters primary separator, the gaseous state low boiling point work separated
Matter enters condenser condensation, and the liquid metal separated is pumped to secondary mixer and mixed again with low boiling working fluid, low boiling
Point working medium vaporized expanding promotes liquid metal, and flow velocity improves again, generates electricity into two level magnetohydrodynamic generator passage cutting magnetic induction line；
The rest may be inferred, and fluid-mixing sequentially enters subsequent stages magnetohydrodynamic generator passage；
Step 4：Enter N grades of separators, the gaseous state separated from the fluid-mixing of N grades of magnetohydrodynamic generator passage outflows
Low boiling working fluid is still condensed into liquid into condenser, and can be delivered to mixers at different levels by working medium pump afterwards absorbs heat vapour again
Change；The liquid metal separated is pumped to liquid metal by hot vaporizer through zero level MHD, completes Xun Huan.
The present invention has the advantages that：
(1) alternative of system heat sources is very big, either the regenerative resources such as solar energy, biomass energy, it can also
It is the non-renewable energy resources such as coal, oil, nuclear energy；
(2) according to heat source object and the difference of temperature, set liquid metal spontaneous evaporation self-propelled and low boiling working fluid evaporates
Two kinds of different modes are promoted, liquid metal is persistently accelerated to enter the power generation of power channel cutting magnetic induction line, it is long to add power channel
Degree improves the generated energy of system；It is higher that the former way of propelling has played liquid metal two phase flow conductivity, generating efficiency compared with
Height, it is simple in structure the advantages of, and the promotion significant effect under two kinds of ways of propelling, through numerical simulation calculation, liquid metal flows
The promotion effect of speed is up to 3 times or more；
(3) electricity generation system needs not move through mechanical switch link, directly converts heat energy into electric energy, can not only make design
It is simpler, reduce the cost of system, and capacity usage ratio higher；
(4) present invention, can be by biomass energy, nuclear reactor etc. by using the liquid metal magnetohydrodynamic generation mode of bimodulus
Heat source is more fully hereinafter converted into high-grade electric energy, can be by further setting multistage liquid metal magnetohydrodynamic generation mode
One step improves the transformation efficiency to electric energy, forms energy conservation and environmental protection, the generation technology route of good economy performance, is advantageously implemented the energy
Efficiently utilize.
Description of the drawings
Fig. 1 is a kind of structure diagram (zero level, level-one) of bimodulus multistage liquid metal magnetohydrodynamic generation system of the present invention；
Wherein：1- liquid metals are by hot vaporizer；2- zero level magnetohydrodynamic generator passages；3- level-one mixers；4- one-step valves
Door；5- level-one magnetohydrodynamic generator passages；6- separators；7- condensers；8- working medium pumps；9- zero levels MHD is pumped；A- level-ones mixer gold
Belong to gas-liquid two-phase inflow entrance；B- level-one mixer low boiling working fluid entrances；C- primary separator gaseous states low boiling working fluid exports；d-
Condenser gaseous state low boiling working fluid entrance；E- condenser liquid low boiling working fluid exports；F- separator liquid metal outlets；G- is cold
Condenser cools down medium inlet；H- condensers cool down media outlet；
Fig. 2 for a kind of structure diagram of bimodulus multistage liquid metal magnetohydrodynamic generation system of the present invention (zero level, level-one,
Two level)；
Wherein：1- liquid metals are by hot vaporizer, 2- zero level magnetohydrodynamic generator passages, 3- level-one mixers, 4- one-step valves
Door, 5- level-one magnetohydrodynamic generator passages, 6- primary separators, 7- condensers, 8- working medium pumps, 9- zero levels MHD pumps, 10- two levels MHD
Pump, 11- secondary mixers, 12- two level magnetohydrodynamic generator passages, 13- second-stage separators, 14- two level valves；A- level-one mixers
Metal gas-liquid two-phase inflow entrance, the low boiling working fluid entrance of b- level-one mixers, the gaseous state low boiling point work of c- primary separators
Matter exports, the gaseous state low boiling working fluid entrance of d- condensers, the liquid low boiling working fluid outlet of e- condensers, f- primary separators
Liquid metal outlet, the cooling medium inlet of g- condensers, the cooling media outlet of h- condensers, the liquid of i- second-stage separators
State metal outlet, the liquid metal entrance of j- secondary mixers, the gaseous state low boiling working fluid outlet of k- second-stage separators, l- pipelines
Branch crossing, the low boiling working fluid entrance of m- secondary mixers.
Specific embodiment
Make further explain to the present invention below in conjunction with the accompanying drawings.
A kind of bimodulus multistage liquid metal magnetohydrodynamic generation system as shown in Figure 1, including zero level liquid metal spontaneous evaporation
Self-propelled power generation sub-system, the evaporation of level-one low boiling working fluid promote power generation sub-system, condensation subsystem, the zero level liquid metal
The self-propelled power generation sub-system of spontaneous evaporation includes liquid metal and is pumped by hot vaporizer 1, zero level magnetohydrodynamic generator passage 2 and zero level MHD
9, the level-one low boiling working fluid evaporation promotes power generation sub-system to include level-one mixer 3, level-one valve 4, level-one magnetic fluid hair
Electric channel 5 and primary separator 6, the condensation subsystem include condenser 7, working medium pump 8；The outlet of zero level MHD pump 9 and
The liquid metal is connected by the entrance of hot vaporizer 1, outlet and zero level magnetic fluid hair of the liquid metal by hot vaporizer 1
The entrance connection of electric channel 2, the outlet of zero level magnetohydrodynamic generator passage 2 and the metal gas-liquid two-phase inflow entrance a of level-one mixer 3
Connection, the outlet of level-one mixer 3 are connected with the entrance of level-one magnetohydrodynamic generator passage 5, and level-one magnetohydrodynamic generator passage 5 goes out
Mouth is connected with the entrance of primary separator 6；The entrance of liquid metal outlet f and zero level the MHD pump 9 of primary separator 6 connects, and one
The gaseous state low boiling working fluid outlet c of grade separator 6 is connected with the gaseous state low boiling working fluid entrance d of condenser 7；The liquid of condenser
Low boiling working fluid outlet e is connected with the entrance of working medium pump 8, liquid of the outlet through level-one valve 4 and level-one mixer 3 of working medium pump 8
State low boiling working fluid entrance b connections, to input cooling medium, cooling media outlet h is used the cooling medium inlet g of condenser 7
Medium is cooled down with output.
A kind of method of work of bimodulus multistage liquid metal magnetohydrodynamic generation system (such as Fig. 1) specifically comprises the following steps：
Step 1：Heat source is used as by the biomass energy combustion heat, nuclear reactor heat etc., by liquid metal by hot vaporizer 1
A certain high temperature is maintained, liquid metal such as metallic potassium is absorbed heat in liquid metal by hot vaporizer 1, temperature rise, after reaching boiling point
Generation part vaporizes, and rapid spatial expansion promotes liquid metal to rapidly enter zero level magnetohydrodynamic generator passage 2, and Lorentz force makes stream
Body pressure declines along zero level magnetohydrodynamic generator passage 2, and liquid metal steam continues to expand under pressure drop, further promotes liquid gold
Belong to cutting magnetic induction line power generation；
Step 2：Completing the liquid metal biphase gas and liquid flow speed after power generation reduces, but still with higher temperature, can make
For the heat source of low boiling working fluid such as trifluorotrichloroethane R113, mixed into level-one mixer 3 with liquid low boiling working fluid, due to
It contacts directly, the latter, which is absorbed heat, completes vaporization, expansion generation motive force, liquid metal flow velocity is made to improve again, subsequently into level-one
5 cutting magnetic induction line of magnetohydrodynamic generator passage generates electricity；
Step 3：The fluid-mixing of liquid metal and gaseous state low boiling working fluid after level-one magnetohydrodynamic generator passage 5
Into primary separator 6, the gaseous state low boiling working fluid separated enters condenser 7 and is condensed into liquid, passes through working medium pump 8 afterwards
Level-one mixer 3 is delivered to level-one valve 4 to absorb heat again vaporization；The liquid metal separated from primary separator is through zero
Grade MHD pumps 9 are sent to liquid metal by hot vaporizer 1, complete Xun Huan.
A kind of bimodulus multistage liquid metal magnetohydrodynamic generation system as shown in Figure 2, including zero level liquid metal spontaneous evaporation
Self-propelled power generation sub-system, the evaporation of level-one low boiling working fluid promote power generation sub-system, the evaporation of two level low boiling working fluid to promote power generation
Subsystem, condensation subsystem, the self-propelled power generation sub-system of zero level liquid metal spontaneous evaporation include liquid metal by thermal evaporation
Device 1, zero level magnetohydrodynamic generator passage 2 and zero level MHD pumps 9, the level-one low boiling working fluid evaporation promote power generation sub-system to include
Level-one mixer 3, level-one valve 4, level-one magnetohydrodynamic generator passage 5 and primary separator 6, the two level low boiling working fluid evaporation
Promote power generation sub-system include two level MHD pump 10, secondary mixer 11, two level magnetohydrodynamic generator passage 12, second-stage separator 13,
Two level valve 14, the condensation subsystem include condenser 7, working medium pump 8；The outlet of the zero level MHD pumps 9 and liquid gold
Belong to and being connected by the entrance of hot vaporizer 1, the liquid metal is by the outlet of hot vaporizer 1 and zero level magnetohydrodynamic generator passage 2
Entrance connects, and the outlet of zero level magnetohydrodynamic generator passage 2 is connected with the metal gas-liquid two-phase inflow entrance a of level-one mixer 3, level-one
The outlet of mixer 3 is connected with the entrance of level-one magnetohydrodynamic generator passage 5, the outlet of level-one magnetohydrodynamic generator passage 5 and level-one
The entrance connection of separator 6, the gaseous state low boiling working fluid outlet c of primary separator 6 pass through pipeline branch crossing l and condenser 7
Gaseous state low boiling working fluid entrance d connections, the entrance of liquid metal outlet f and two level the MHD pump 10 of primary separator 6 connect, and two
The outlet of grade MHD pumps 10 is connected with the liquid metal entrance j of secondary mixer 11, the outlet of secondary mixer 11 and two level magnetic current
The entrance connection of body power channel 12, the outlet of two level magnetohydrodynamic generator passage 12 are connected with the entrance of second-stage separator 13, and two
The gaseous state low boiling working fluid outlet k of grade separator is connected by the gaseous state low boiling working fluid entrance d of pipeline branch crossing l and condenser 7
It connects, the entrance of liquid metal outlet i and zero level the MHD pump 9 of second-stage separator connects, and the liquid low boiling working fluid of condenser 7 goes out
Mouth e is connected with the entrance of working medium pump 8, low boiling working fluid entrance b of the outlet through level-one valve 4 and level-one mixer 3 of working medium pump 8
Connection, connects, the cooling medium of the condenser 7 enters through two level valve 14 with the low boiling working fluid entrance m of secondary mixer 11
Mouth g cools down media outlet h to export cooling medium to input cooling medium.It is very big in view of the thermal capacity of liquid metal,
Low boiling working fluid liquid metal temperature drop caused by secondary mixer absorbs heat is smaller, is distributed by two level magnetohydrodynamic generator passage 12
Liquid metal temperature after electricity may be still higher, may continue as the heat source of low boiling working fluid, therefore the present invention can also make N grades
Low boiling working fluid evaporation promotes power generation sub-system extension, and wherein N is the natural number more than or equal to 2, and N grades of low boiling working fluid evaporations push away
Dynamic power generation sub-system includes N grades of MHD pumps, N grades of mixers, N grades of magnetohydrodynamic generator passages, N grades of separators, N grades of valves, the N
Grade MHD pumps, N grade mixers, N grades of magnetohydrodynamic generator passages, N grades of separators and the two level MHD pump 10, secondary mixer 11,
Two level magnetohydrodynamic generator passage 12,13 connection mode of second-stage separator are identical；The gaseous state low boiling working fluid outlet of separators at different levels
It is connected by pipeline branch crossing l with the gaseous state low boiling working fluid entrance d of condenser 7, the liquid low boiling working fluid outlet of condenser 7
E is connected with the entrance of working medium pump 8, and low boiling working fluid of the outlet of working medium pump 8 through valves at different levels and corresponding mixer at different levels enters
Mouth connection, the liquid metal outlet of second-stage separator to N-1 grades of separators are connected respectively the entrance of the MHD pumps of next stage, N
The liquid metal outlet of grade separator is connected with the entrance of zero level MHD pumps 9.
A kind of method of work of bimodulus multistage liquid metal magnetohydrodynamic generation system, specifically comprises the following steps：
Step 1：Heat source is used as by the biomass energy combustion heat, nuclear reactor heat etc., by liquid metal by hot vaporizer 1
A certain high temperature is maintained, liquid metal such as metallic potassium absorbs heat in evaporator 1, temperature rise, and part vaporization occurs after reaching boiling point,
Rapid spatial expansion promotes liquid metal to rapidly enter zero level magnetohydrodynamic generator passage 2, and Lorentz force makes Fluid pressure along zero level
Magnetohydrodynamic generator passage 2 declines, and liquid metal steam continues to expand under pressure drop, further promotes liquid metal cutting magnetic induction line
Power generation；
Step 2：Completing the liquid metal biphase gas and liquid flow speed after power generation reduces, but still with higher temperature, can make
For the heat source of low boiling working fluid such as trifluorotrichloroethane R113, mixed into level-one mixer 3 with low boiling working fluid, due to direct
Contact, vaporization is completed in low boiling working fluid heat absorption, expansion generates motive force, liquid metal flow velocity is made to improve again, subsequently into one
The 5 cutting magnetic induction line power generation of grade magnetohydrodynamic generator passage；
Step 3：Liquid metal after level-one magnetohydrodynamic generator passage 5 may continue as next stage low boiling working fluid
Heat source, the fluid-mixing of liquid metal and gaseous state low boiling working fluid enters primary separator 6, the gaseous state low boiling point separated
Working medium enters condenser 7 and condenses, and the liquid metal separated is pumped to secondary mixer 11 and mixed again with low boiling working fluid,
Low boiling working fluid vaporized expanding promotes liquid metal, and flow velocity improves again, into 12 cutting magnetic induction of two level magnetohydrodynamic generator passage
Line generates electricity；And so on, fluid-mixing sequentially enters subsequent stages magnetohydrodynamic generator passage；
Step 4：Enter N grades of separators, the gaseous state separated from the fluid-mixing of N grades of magnetohydrodynamic generator passage outflows
Low boiling working fluid is still condensed into liquid into condenser 7, and can be delivered to mixers at different levels by working medium pump 8 afterwards absorbs heat again
Vaporization；The liquid metal separated is sent to liquid metal through zero level MHD pumps 9 by hot vaporizer 1, completes Xun Huan.
A kind of principle of bimodulus multistage liquid metal magnetohydrodynamic generation system of the present invention：The biomass energy combustion heat, core is anti-
Heap heat etc. is answered by way of liquid metal magnetohydrodynamic generation, to obtain high-grade electric energy as heat source.Liquid metal connects with heat source
When touching, part vaporization first generates bubble, promotes and itself generates electricity into power channel；Liquid metal temperature after power generation is very high,
The heat source of low boiling working fluid is may continue as, low boiling working fluid vaporizes after being mixed with, and liquid metal is promoted to flow through next
Grade power channel power generation；Since the thermal capacity of liquid metal is very big, liquid metal temperature drop caused by low boiling working fluid absorbs heat is smaller,
It is still higher that the liquid metal temperature of power generation is completed again, may continue as the heat source of low boiling working fluid, low boiling working fluid is therewith
Mixing generates bubble and liquid metal flows is promoted to enter power channel power generation, and so on, can subsequently it enter corresponding at different levels low
Boiling point working medium evaporates power generation sub-system, until liquid metal temperature is down to the heat source for being not suitable anymore for as low boiling working fluid, then it is complete
Into entire power generation flow；The system sets liquid metal spontaneous evaporation self-propelled and low boiling according to heat source object and the difference of temperature
Point working medium evaporation promotes two kinds of different modes, and liquid metal is accelerated to enter the power generation of power channel cutting magnetic induction line；To avoid liquid
Gaseous state excessively influences generating effect in metal biphase gas and liquid flow, and grade is set between upper level power channel and next stage mixer
Between separator carry out gas-liquid separation, the liquid metal isolated enters next stage mixer, and gaseous state low boiling working fluid enters condensation
Device.
The above is only the preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, without departing from the principle of the present invention, several improvements and modifications can also be made, these improvements and modifications also should
It is considered as protection scope of the present invention.
Claims (4)
1. a kind of bimodulus multistage liquid metal magnetohydrodynamic generation system, which is characterized in that including the spontaneous evaporation of zero level liquid metal certainly
Power generation sub-system, the evaporation of level-one low boiling working fluid is promoted to promote power generation sub-system, condensation subsystem, the zero level liquid metal is certainly
Evaporating self-propelled power generation sub-system includes liquid metal by hot vaporizer (1), zero level magnetohydrodynamic generator passage (2) and zero level MHD
It pumps (9), the level-one low boiling working fluid evaporation promotes power generation sub-system to include level-one mixer (3), level-one valve (4), level-one
Magnetohydrodynamic generator passage (5) and primary separator (6), the condensation subsystem include condenser (7), working medium pump (8)；Described zero
The outlet of grade MHD pumps (9) is connected with the liquid metal by the entrance of hot vaporizer (1), and the liquid metal is by hot vaporizer
(1) outlet is connected with the entrance of zero level magnetohydrodynamic generator passage (2), the outlet of zero level magnetohydrodynamic generator passage (2) and level-one
Metal gas-liquid two-phase inflow entrance (a) connection of mixer (3), the outlet of level-one mixer (3) and level-one magnetohydrodynamic generator passage
(5) entrance connection, the outlet of level-one magnetohydrodynamic generator passage (5) is connected with the entrance of primary separator (6)；Primary separator
(6) liquid metal outlet (f) is connected with the entrance of zero level MHD pumps (9), and the gaseous state low boiling working fluid of primary separator (6) goes out
The gaseous state low boiling working fluid entrance (d) of mouth (c) and condenser (7) connects；The liquid low boiling working fluid outlet (e) of condenser and work
The entrance connection of matter pump (8), liquid low boiling working fluid of the outlet through level-one valve (4) and level-one mixer (3) of working medium pump (8)
Entrance (b) connects, and the cooling medium inlet (g) of condenser (7) is to input cooling medium, and cooling media outlet (h) is to defeated
Go out to cool down medium.
2. a kind of bimodulus multistage liquid metal magnetohydrodynamic generation system, is further characterized in that, including zero level liquid metal spontaneous evaporation
Self-propelled power generation sub-system, the evaporation of level-one low boiling working fluid promote power generation sub-system, the evaporation of two level low boiling working fluid to promote power generation
N grades of low boiling working fluid evaporations of subsystem ... promote power generation sub-system, condensation subsystem, and wherein N is the natural number more than or equal to 2,
The self-propelled power generation sub-system of zero level liquid metal spontaneous evaporation includes liquid metal and is sent out by hot vaporizer (1), zero level magnetic fluid
Electric channel (2) and zero level MHD pumps (9), the level-one low boiling working fluid evaporation promote power generation sub-system to include level-one mixer
(3), level-one valve (4), level-one magnetohydrodynamic generator passage (5) and primary separator (6), the two level low boiling working fluid evaporation push away
Dynamic power generation sub-system includes two level MHD pumps (10), secondary mixer (11), two level magnetohydrodynamic generator passage (12), the second-order separation
Device (13), two level valve (14), and so on, N grades of low boiling working fluid evaporation promote power generation sub-system include N grade MHD pumps,
N grades of mixers, N grades of magnetohydrodynamic generator passages, N grades of separators, N grades of valves, the condensation subsystem include condenser (7), work
Matter pumps (8)；The outlet of the zero level MHD pumps (9) is connected with the liquid metal by the entrance of hot vaporizer (1), the liquid
The outlet of metal heated evaporator (1) is connected with the entrance of zero level magnetohydrodynamic generator passage (2), zero level magnetohydrodynamic generator passage
(2) outlet and metal gas-liquid two-phase inflow entrance (a) connection of level-one mixer (3), the outlet of level-one mixer (3) and level-one
The entrance connection of magnetohydrodynamic generator passage (5), the outlet of level-one magnetohydrodynamic generator passage (5) and the entrance of primary separator (6)
Connection, the gaseous state low boiling working fluid outlet (c) of primary separator (6) are low with the gaseous state of condenser (7) by pipeline branch crossing (l)
Boiling point working medium entrances (d) connect, and the liquid metal outlet (f) of primary separator (6) is connected with the entrance of two level MHD pumps (10),
The outlet of two level MHD pumps (10) and liquid metal entrance (j) connection of secondary mixer (11), the outlet of secondary mixer (11)
It is connected with the entrance of two level magnetohydrodynamic generator passage (12), the outlet of two level magnetohydrodynamic generator passage (12) and second-stage separator
(13) entrance connection, and so on, the N grade MHD pumps, N grades of mixers, N grades of magnetohydrodynamic generator passages, N grades of separators and
The two level MHD pumps (10), secondary mixer (11), two level magnetohydrodynamic generator passage (12), second-stage separator (13) connection side
Formula is identical；The gaseous state low boiling working fluid outlet of second-stage separator to N grades of separators passes through pipeline branch crossing (l) and condenser (7)
Gaseous state low boiling working fluid entrance (d) connection, the liquid metal outlet of second-stage separator to N-1 grades of separators is connected respectively
The entrance of the MHD pumps of next stage, the liquid metal outlet of N grades of separators are connected with the entrance of zero level MHD pumps (9), condenser (7)
Liquid low boiling working fluid outlet (e) connected with the entrance of working medium pump (8), the outlet of working medium pump (8) is through level-one valve (4) and one
Low boiling working fluid entrance (b) connection of grade mixer (3), the low boiling working fluid through two level valve (14) and secondary mixer (11)
Entrance (m) connects, and so on, it is connected through N grades of valves with the low boiling working fluid entrance of N grades of mixers；The condenser (7)
Cooling medium inlet (g) cools down media outlet (h) to export cooling medium to input cooling medium.
3. a kind of method of work of bimodulus multistage liquid metal magnetohydrodynamic generation system as claimed in claim 1, feature
It is, includes the following steps：
Step 1：Heat source is used as by the biomass energy combustion heat, nuclear reactor heat etc., liquid metal is tieed up by hot vaporizer (1)
It holds in a certain high temperature, liquid metal is absorbed heat in liquid metal by hot vaporizer (1), and after reaching boiling point part occurs for temperature rise
Vaporization, rapid spatial expansion promote liquid metal to rapidly enter zero level magnetohydrodynamic generator passage (2), and Lorentz force makes Fluid pressure
Decline along zero level magnetohydrodynamic generator passage (2), liquid metal steam continues to expand under pressure drop, further liquid metal is promoted to cut
Cut magnetic induction line power generation；
Step 2：Completing the liquid metal biphase gas and liquid flow speed after power generation reduces, but still with higher temperature, can be used as low
The heat source of boiling point working medium is mixed into level-one mixer (3) with low boiling working fluid, due to contacting directly, low boiling working fluid heat absorption
Vaporization, expansion generation motive force are completed, liquid metal flow velocity is made to improve again, subsequently into level-one magnetohydrodynamic generator passage (5)
Cutting magnetic induction line generates electricity；
Step 3：The fluid-mixing of liquid metal and gaseous state low boiling working fluid after level-one magnetohydrodynamic generator passage (5) into
Enter primary separator (6), the gaseous state low boiling working fluid separated enters condenser (7) and is condensed into liquid, passes through working medium afterwards
Pump (8) and level-one valve (4) are delivered to level-one mixer (3) and absorb heat again vaporization；The liquid separated from primary separator
State metal is sent to liquid metal through zero level MHD pumps (9) by hot vaporizer (1), completes Xun Huan.
4. a kind of method of work of bimodulus multistage liquid metal magnetohydrodynamic generation system as claimed in claim 2, feature
It is, includes the following steps：
Step 1：Heat source is used as by the biomass energy combustion heat, nuclear reactor heat etc., liquid metal is tieed up by hot vaporizer (1)
It holds in a certain high temperature, liquid metal absorbs heat in evaporator (1), temperature rise, part vaporization occurs after reaching boiling point, volume is rapid
It expands against liquid metal and rapidly enters zero level magnetohydrodynamic generator passage (2), Lorentz force makes Fluid pressure along zero level magnetic fluid
Power channel (2) declines, and liquid metal steam continues to expand under pressure drop, further promotes liquid metal cutting magnetic induction line hair
Electricity；
Step 2：Completing the liquid metal biphase gas and liquid flow speed after power generation reduces, but still with higher temperature, can be used as low
The heat source of boiling point working medium is mixed into level-one mixer (3) with low boiling working fluid, due to contacting directly, low boiling working fluid heat absorption
Vaporization, expansion generation motive force are completed, liquid metal flow velocity is made to improve again, subsequently into level-one magnetohydrodynamic generator passage (5)
Cutting magnetic induction line generates electricity；
Step 3：Liquid metal after level-one magnetohydrodynamic generator passage (5) may continue as next stage low boiling working fluid
The fluid-mixing of heat source, liquid metal and gaseous state low boiling working fluid enters primary separator (6), the gaseous state low boiling point separated
Working medium enter condenser (7) condensation, the liquid metal separated pump to secondary mixer (11) again with low boiling working fluid
Mixing, low boiling working fluid vaporized expanding promote liquid metal, and flow velocity is improved, cut into two level magnetohydrodynamic generator passage (12) again
Cut magnetic induction line power generation；The rest may be inferred, and fluid-mixing sequentially enters subsequent stages magnetohydrodynamic generator passage；
Step 4：Enter N grades of separators from the fluid-mixing of N grades of magnetohydrodynamic generator passage outflows, the gaseous state low boiling separated
Point working medium is still condensed into liquid into condenser (7), and can be delivered to mixers at different levels by working medium pump (8) afterwards absorbs heat again
Vaporization；The liquid metal separated is sent to liquid metal through zero level MHD pumps (9) by hot vaporizer (1), completes Xun Huan.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810127402.6A CN108123587B (en) | 2018-02-08 | 2018-02-08 | Dual-mode multistage liquid metal magnetohydrodynamic power generation system and working method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810127402.6A CN108123587B (en) | 2018-02-08 | 2018-02-08 | Dual-mode multistage liquid metal magnetohydrodynamic power generation system and working method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108123587A true CN108123587A (en) | 2018-06-05 |
| CN108123587B CN108123587B (en) | 2020-04-24 |
Family
ID=62233625
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810127402.6A Active CN108123587B (en) | 2018-02-08 | 2018-02-08 | Dual-mode multistage liquid metal magnetohydrodynamic power generation system and working method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108123587B (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108806813A (en) * | 2018-06-14 | 2018-11-13 | 中国工程物理研究院核物理与化学研究所 | A kind of core pulse power supply and operation method |
| CN109980893A (en) * | 2019-03-05 | 2019-07-05 | 黑龙江工程学院 | A kind of new-type magnetic fluid mobile power generating device |
| CN110111912A (en) * | 2019-06-14 | 2019-08-09 | 北京卫星环境工程研究所 | Spontaneous evaporation metal MHD integral reactor |
| CN112240233A (en) * | 2020-09-07 | 2021-01-19 | 南京航空航天大学 | LMMHD/ORC coupling power generation system and working method thereof |
| CN114567143A (en) * | 2022-02-22 | 2022-05-31 | 南京航空航天大学 | Gas-liquid separator for gas-liquid metal two-phase magnetohydrodynamic power generation system and working method thereof |
| CN116722766A (en) * | 2023-08-10 | 2023-09-08 | 南京航空航天大学 | Dual-cycle nuclear power system with coupled plasma and liquid metal and working method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6028375A (en) * | 1996-12-26 | 2000-02-22 | Kishi; Harunori | Energy converter |
| CN105443178A (en) * | 2015-12-18 | 2016-03-30 | 南京航空航天大学 | Ship waste heat power generation device based on liquid metal magnetohydrodynamic power generation and working method of ship waste heat power generation device |
| CN107221370A (en) * | 2017-06-09 | 2017-09-29 | 南京航空航天大学 | Core gradient utilization system and method based on liquid metal spontaneous evaporation magnetohydrodynamic generator |
-
2018
- 2018-02-08 CN CN201810127402.6A patent/CN108123587B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6028375A (en) * | 1996-12-26 | 2000-02-22 | Kishi; Harunori | Energy converter |
| CN105443178A (en) * | 2015-12-18 | 2016-03-30 | 南京航空航天大学 | Ship waste heat power generation device based on liquid metal magnetohydrodynamic power generation and working method of ship waste heat power generation device |
| CN107221370A (en) * | 2017-06-09 | 2017-09-29 | 南京航空航天大学 | Core gradient utilization system and method based on liquid metal spontaneous evaporation magnetohydrodynamic generator |
Non-Patent Citations (1)
| Title |
|---|
| 刘洋等: "液态金属磁流体发电系统", 《发电设备》 * |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108806813A (en) * | 2018-06-14 | 2018-11-13 | 中国工程物理研究院核物理与化学研究所 | A kind of core pulse power supply and operation method |
| CN109980893A (en) * | 2019-03-05 | 2019-07-05 | 黑龙江工程学院 | A kind of new-type magnetic fluid mobile power generating device |
| CN109980893B (en) * | 2019-03-05 | 2020-08-14 | 黑龙江工程学院 | Magnetic fluid mobile power generation device |
| CN110111912A (en) * | 2019-06-14 | 2019-08-09 | 北京卫星环境工程研究所 | Spontaneous evaporation metal MHD integral reactor |
| CN112240233A (en) * | 2020-09-07 | 2021-01-19 | 南京航空航天大学 | LMMHD/ORC coupling power generation system and working method thereof |
| CN112240233B (en) * | 2020-09-07 | 2021-09-28 | 南京航空航天大学 | LMMHD/ORC coupling power generation system and working method thereof |
| CN114567143A (en) * | 2022-02-22 | 2022-05-31 | 南京航空航天大学 | Gas-liquid separator for gas-liquid metal two-phase magnetohydrodynamic power generation system and working method thereof |
| CN114567143B (en) * | 2022-02-22 | 2023-10-24 | 南京航空航天大学 | Gas-liquid separator of gas-liquid metal two-phase magnetohydrodynamic power generation system and working method |
| CN116722766A (en) * | 2023-08-10 | 2023-09-08 | 南京航空航天大学 | Dual-cycle nuclear power system with coupled plasma and liquid metal and working method |
| CN116722766B (en) * | 2023-08-10 | 2023-11-17 | 南京航空航天大学 | Dual-cycle nuclear power system with coupled plasma and liquid metal and working method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108123587B (en) | 2020-04-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108123587A (en) | A kind of bimodulus multistage liquid metal magnetohydrodynamic generation system and its method of work | |
| WO2020239068A1 (en) | Cascaded power generation system combining magnetic levitation-based orc power generators for utilizing medium/low temperature geothermal energy | |
| US8272217B2 (en) | Method and device for carrying out a thermodynamic cyclic process | |
| AU2008349706B2 (en) | Method for operating a thermodynamic circuit, as well as a thermodynamic circuit | |
| US5953918A (en) | Method and apparatus of converting heat to useful energy | |
| JP4388067B2 (en) | Method and apparatus for performing a thermodynamic cycle | |
| US20030167769A1 (en) | Mixed working fluid power system with incremental vapor generation | |
| Lu et al. | Analysis of organic Rankine cycles using zeotropic mixtures as working fluids under different restrictive conditions | |
| JPH0427367B2 (en) | ||
| Ma et al. | Performance investigation of a novel closed Brayton cycle using supercritical CO2-based mixture as working fluid integrated with a LiBr absorption chiller | |
| US20120067049A1 (en) | Systems and methods for power generation from multiple heat sources using customized working fluids | |
| US4086772A (en) | Method and apparatus for converting thermal energy to mechanical energy | |
| Yang et al. | Potential of transcritical recompression Rankine cycle operating with CO2-based binary mixtures | |
| Xie et al. | Flash evaporation strategy of organic Rankine cycle for geothermal power performance enhancement: A case study | |
| US4847525A (en) | Methods and systems for magnetohydrodynamic power conversion | |
| CN111396291B (en) | Compressed gas waste heat recovery power generation system | |
| Skubienko et al. | Using an absorption heat pump in the regeneration system of turbine model K-300-240-2 manufactured by Kharkov turbo generator plant (KhTGP) | |
| US7373904B2 (en) | Stratified vapor generator | |
| TW201508237A (en) | Heat exchanger, heat engine system and control method using the same | |
| Zhang et al. | Performance Improvement of KCS (Kalina Cycle System) 34 by Replacing Throttle Valve With Single-Screw Expander | |
| CN104110284B (en) | Low-temperature heat power generation organic media blood circulation | |
| CN103790661B (en) | Phase-change heat power generation system | |
| Huang et al. | Thermodynamic Analysis of Organic Flash Cycle By R600a/R601a Mixtures▴ | |
| WO2003008767A2 (en) | Mixed working fluid power system with incremental vapor generation | |
| BR102015002645A2 (en) | system, process and use of a system for the reuse of thermal energy from a heat source |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |