CN206346787U - A kind of helium Closed Brayton Power Cycle electricity generation system of two grade utility LNG cold energy - Google Patents
A kind of helium Closed Brayton Power Cycle electricity generation system of two grade utility LNG cold energy Download PDFInfo
- Publication number
- CN206346787U CN206346787U CN201621471427.0U CN201621471427U CN206346787U CN 206346787 U CN206346787 U CN 206346787U CN 201621471427 U CN201621471427 U CN 201621471427U CN 206346787 U CN206346787 U CN 206346787U
- Authority
- CN
- China
- Prior art keywords
- helium
- lng
- outlet
- regenerator
- gas
- 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.)
- Active
Links
Landscapes
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
The utility model provides a kind of helium Closed Brayton Power Cycle electricity generation system of two grade utility LNG cold energy, and the electricity generation system at least includes first order circulation, second level circulation, LNG storage tank, voltage regulating station, combustion chamber and air preheater；First helium compressor, the first regenerator, the first flue gas helium heat exchanger, the first helium gas turbine, the first regenerator, the first heating boiler, which are sequentially passed through, from the first helium LNG heat exchangers forms the first order circulation；First generator is connected with first helium gas turbine；Second helium compressor, the second regenerator, the second flue gas helium heat exchanger, the second helium gas turbine, the second regenerator, which are sequentially passed through, from the second helium LNG heat exchangers forms the second level circulation；Second generator is connected with second helium gas turbine；Electricity generation system of the present utility model, it is the helium Closed Brayton Power Cycle electricity generation system of a kind of safe and stable and efficient two grade utility LNG cold energy, the working medium of helium compressor import is cooled to low-temperature condition using LNG, improve the efficiency of the circulation warm ratio of Brayton cycle, effectively lifting helium Closed Brayton Power Cycle electricity generation system.
Description
Technical field
The utility model is related to application of the LNG cold energy in technical field of power generation, and more particularly to a kind of two grade utility LNG is cold
The helium Closed Brayton Power Cycle electricity generation system of energy.
Background technology
With being on the rise for the environmental problem such as haze in recent years, adjusting and optimizing energy resource structure becomes urgent demand.
The energy that natural gas is more cleaned as a kind of relative coal, oil, is given priority in China's energy development Strategic Action Plan
Object, obtained country support energetically.For the ease of storage and long-distance transportation, natural gas in low temperature is generally cooled to liquid
State, as LNG (liquefied natural gas).At present, China's Coastal Areas is completed or in the LNG receiving stations built up to more than 20,
Year, import volume was close to 20,000,000 tons.LNG storage temperature is at -162 DEG C or so, it is necessary to could supply user after being heated gasification
Use, a large amount of high-quality cold energy can be discharged in the process.Traditional gasification process is generally using seawater, air even burner conduct
Thermal source, heating and gasifying is carried out using heat exchanger, is caused huge cold energy and is wasted, and the LNG that gasified with seawater can also be caused
Cold pollution to environment, destroys marine ecology.So, if this part cold energy can be used, huge warp can be produced
Ji benefit, while being also beneficial to environmental protection.
The generation technology of LNG cold energy uses mainly has following a few classes：Direct expansion method, Rankine cycle method, combined-circulation method
And for improving the power cycle characteristic of Brayton cycle or gas turbine.
LNG is first pressurized by direct expansion method by pump, is then heated with seawater or air, utilizes its pressure energy
Turbine is directly driven, expansion, which is done manual work, to generate electricity.The flow of this method and required equipment are very simple, but have only reclaimed LNG portion
Partial pressure energy, most of high-quality cold energy is wasted, and organic efficiency is very low.
Rankine cycle method is using LNG as low-temperature receiver, and environment constitutes low temperature Rankine from appropriate medium as thermal source as working medium
Circulation.If working medium selection is proper so that the evaporation process of working medium and LNG gasification can be matched preferably, then can be had
Effect reduces heat transferDamage.It is more efficient that this method compares direct expansion method, comes into operation extensively at present, technology maturation, and
And can be combined with direct expansion method, combined-circulation is constituted, the utilization rate of LNG cold energy is further improved.
For gas turbine, in the peak time of summer electricity consumption, because environment temperature is higher, make combustion engine intake air
Temperature is raised, and the air capacity sucked under certain pressure ratio is reduced, and leverages exerting oneself for combustion engine.Using LNG cold energy to combustion gas
Turbine inlet air is cooled down, and improves dynamical system characteristic, it is to avoid the decline that combustion engine is exerted oneself, and can improve combustion engine efficiency.No
The dew point limitation due to water vapor in air is crossed, inlet air is minimum can only to be cooled to 5 DEG C or so, and improved efficiency is limited, and changes
Hot device is coldLoss is larger.
For Closed Brayton Power Cycle, compressor inlet working medium is also cooled down using LNG cold energy, reduces compressor
Wasted work, increase circulation temperature rise ratio, so as to improve cycle efficieny.Cycle fluid can select helium or nitrogen etc., they excellent
Gesture is, its exchanged heat with LNG during all without undergoing phase transition, very low temperature can be cooled to, further increase is followed
Ring temperature rise ratio, with LNG gasification temperature-rise period can good match, and can further be reduced by modes such as cascade utilizations
Heat exchangeDamage, improve the utilization ratio of cold energy.
In the working medium selection of Closed Brayton Power Cycle, helium is because its specific heat capacity is big, heat exchange property is protruded and turns into and follows
The ideal chose of ring working medium.Helium Closed Brayton Power Cycle is more suitable for the application of high-temperature field relative to traditional Rankine cycle,
Higher heat to power output efficiency can be realized.And because helium has chemical inertness, unlike steam Rankine cycle has cavitation
Problem, is conducive to the life-span of extension device, reduces system operation maintenance cost.In addition, the heat exchange property of helium is protruded, its heat conduction
Coefficient and specific heat are air more than 5 times, it means that to reach identical heat exchange amount, will using the equipment size of helium working medium
Greatly reduce so that equipment arrangement is more flexible, is easy to modular development.
Utility model content
The shortcoming of prior art in view of the above, the purpose of this utility model is to provide a kind of two grade utility LNG cold
The helium Closed Brayton Power Cycle electricity generation system of energy, is cooled to low-temperature condition by the working medium of helium compressor import using LNG, carries
The efficiency of the circulation warm ratio of high Brayton cycle, effectively lifting helium Closed Brayton Power Cycle electricity generation system.
In order to achieve the above objects and other related objects, the utility model provides a kind of helium of two grade utility LNG cold energy
Closed Brayton Power Cycle electricity generation system, the electricity generation system at least includes first order circulation, second level circulation, LNG storage tank, pressure regulation
Stand, combustion chamber and air preheater；
The first order circulation includes the first helium-LNG heat exchangers, the first helium compressor, the first regenerator, the first cigarette
Gas-helium heat exchanger, the first helium gas turbine, the first generator, the first heating boiler；
First helium compressor, the first regenerator, the first cigarette are sequentially passed through from the first helium-LNG heat exchangers
Gas-helium heat exchanger, the first helium gas turbine, the first regenerator, the first heating boiler form the first order circulation；Described first
Generator is connected with first helium gas turbine；
The second level circulation includes the second helium-LNG heat exchangers, the second helium compressor, the second regenerator, the second cigarette
Gas-helium heat exchanger, the second helium gas turbine, the second generator；
Second helium compressor, the second regenerator, the second cigarette are sequentially passed through from the second helium-LNG heat exchangers
Gas-helium heat exchanger, the second helium gas turbine, the second regenerator form the second level circulation；Second generator with it is described
Second helium gas turbine is connected；
The LNG storage tank is connected by a LNG pump with the gas inlet of the second helium-LNG heat exchangers, and described
The gas outlet of two helium-LNG heat exchangers is connected with the gas inlet of the first helium-LNG heat exchangers, and described first
The gas outlet of helium-LNG heat exchangers is connected to the voltage regulating station；
The gas inlet of the combustion chamber is connected with the voltage regulating station, the air intake of the combustion chamber and the air
The air outlet slit of preheater is connected, and the outlet of the combustion chamber is connected with the smoke inlet of first flue gas-helium heat exchanger,
The exhanst gas outlet of first flue gas-helium heat exchanger is connected with the smoke inlet of second flue gas-helium heat exchanger, described
The exhanst gas outlet of second flue gas-helium heat exchanger is connected with the smoke inlet of the air preheater.
Preferably, the concrete structure of the first order circulation is：The helium outlet warp of the first helium-LNG heat exchangers
Cross first helium compressor with the first helium entrance of first regenerator to be connected, the first helium of first regenerator
Gas outlet is connected with the helium entrance of first flue gas-helium heat exchanger, and the helium of first flue gas-helium heat exchanger goes out
Mouth is connected with the helium entrance of first helium gas turbine, helium outlet and first regenerator of first helium gas turbine
The second helium entrance be connected, the outlet of the second helium of first regenerator is by first heating boiler and described first
The helium entrance of helium-LNG heat exchangers is connected, and first generator is connected with first helium gas turbine.
Preferably, the concrete structure of the second level circulation is：The helium outlet warp of the second helium-LNG heat exchangers
Cross second helium compressor with the first helium entrance of second regenerator to be connected, the first helium of second regenerator
Gas outlet is connected with the helium entrance of second flue gas-helium heat exchanger, and the helium of second flue gas-helium heat exchanger goes out
Mouth is connected with the helium entrance of second helium gas turbine, helium outlet and second regenerator of second helium gas turbine
The second helium entrance be connected, the outlet of the second helium of second regenerator and the helium of the second helium-LNG heat exchangers
Entrance is connected, and second generator is connected with second helium gas turbine.
Preferably, the second helium outlet of second regenerator and the helium entrance of the second helium-LNG heat exchangers
Between one second heating boiler can also be set.
Preferably, the temperature of the helium outlet of the second helium-LNG heat exchangers in the circulation of the second level is less than described the
The temperature of the helium outlet of the first helium-LNG heat exchangers in primary cycle.
Preferably, the temperature of the helium outlet of the first flue gas-helium heat exchanger in the first order circulation is higher than described
The temperature of the helium outlet of the second flue gas-helium heat exchanger in the circulation of the second level.
As described above, the helium Closed Brayton Power Cycle electricity generation system of two grade utility LNG cold energy of the present utility model, has
Following beneficial effect：
1st, helium compressor import working medium is cooled down using LNG cold energy, solve environment temperature it is higher when, helium turbine goes out
The technical problem of power reduction, increases circulation warm ratio, compared with the circulation without inlet gas cooling, and the thermal efficiency of first order circulation is carried
High by about 4%, the thermal efficiency of second level circulation improves about 10%, and system effectiveness is obviously improved.
2nd, Closed Brayton Power Cycle helium turbine uses helium as working medium, the working medium phase with gas turbine or steam turbine
Than, helium can be run under low-temperature condition, the problems such as in the absence of phase transformation under low temperature, and the LNG under supercriticality easily with
The cooling procedure of helium matches.
3rd, cascade utilization is carried out to the LNG cold energy of different temperature sections using two-stage helium-LNG heat exchangers, reduces systemLoss, effectively improves cold energy use rate.
4th, the utility model uses helium Closed Brayton Power Cycle electricity generation system, and it has simple and compact for structure, occupation of land face
The features such as product is small, is easy to be arranged and apply in each LNG receiving station
Brief description of the drawings
Fig. 1 is the structural representation of the helium Closed Brayton Power Cycle electricity generation system of the utility model two grade utility LNG cold energy
Figure.
Component label instructions
1 first order is circulated
11 first helium-LNG heat exchangers
12 first helium compressors
13 first regenerators
First helium entrance of 131 first regenerators
The first helium outlet of 132 first regenerators
Second helium entrance of 133 first regenerators
The second helium outlet of 134 first regenerators
14 first flue gases-helium heat exchanger
15 first helium gas turbines
16 first generators
17 heating boilers
Circulate 2 second level
21 second helium-LNG heat exchangers
22 second helium compressors
23 second regenerators
First helium entrance of 231 second regenerators
The first helium outlet of 232 second regenerators
Second helium entrance of 233 second regenerators
The second helium outlet of 234 second regenerators
24 second flue gases-helium heat exchanger
25 second helium gas turbines
26 second generators
3 LNG storage tanks
4 LNG pumps
5 voltage regulating stations
6 combustion chambers
7 air preheaters
Embodiment
Illustrate embodiment of the present utility model below by way of specific instantiation, those skilled in the art can be by this theory
Content disclosed by bright book understands other advantages of the present utility model and effect easily.The utility model can also be by addition
Different embodiments are embodied or practiced, and the various details in this specification can also be based on different viewpoints with answering
With, without departing from it is of the present utility model spirit under carry out various modifications or alterations.
Refer to accompanying drawing.It should be noted that the diagram provided in the present embodiment only illustrates this practicality in a schematic way
New basic conception, then in schema only display with relevant component in the utility model rather than according to component during actual implement
Number, shape and size are drawn, and kenel, quantity and the ratio of each component can be a kind of random change during its actual implementation, and
Its assembly layout kenel may also be increasingly complex.
As shown in figure 1, the utility model provides a kind of helium Closed Brayton Power Cycle generating system of two grade utility LNG cold energy
System, the electricity generation system at least includes first order circulation 1, second level circulation 2, LNG storage tank 3, voltage regulating station 4, combustion chamber 6 and sky
Air preheater 7.The first order circulation 1 and second level circulation 2 are helium Closed Brayton Power Cycle.
Wherein, the first order circulation includes the first helium-LNG heat exchangers 11, the first helium compressor 12, the first backheat
Device 13, the first flue gas-helium heat exchanger 14, the first helium gas turbine 15, the first generator 16, heating boiler 17；From described first
Helium-LNG heat exchangers 11 sequentially pass through first helium compressor 12, the first regenerator 13, the first flue gas-helium heat exchanger
14th, the first helium gas turbine 15, the first regenerator 13, heating boiler 17 form the first order circulation 1；First generator 16
It is connected with first helium gas turbine 16.
The specific annexation of all parts is in the first order circulation：The helium of the first helium-LNG heat exchangers 11
Gas outlet is connected with the first helium entrance 131 of first regenerator 13 by first helium compressor 12, and described the
The first helium outlet 132 of one regenerator 13 is connected with the helium entrance of first flue gas-helium heat exchanger 14, and described first
The helium outlet of flue gas-helium heat exchanger 14 is connected with the helium entrance of first helium gas turbine 15, and first helium is saturating
Flat 16 helium outlet is connected with the second helium entrance 133 of first regenerator 13, the second helium of first regenerator
Gas outlet 134 is connected by the heating boiler 17 with the helium entrance of the first helium-LNG heat exchangers 11, and described first
Generator 16 is connected with first helium gas turbine 15.It is sequentially connected between all parts by pipeline.
The second level circulation 2 includes the second helium-LNG heat exchangers 21, the second helium compressor 22, the second regenerator
23rd, the second flue gas-helium heat exchanger 24, the second helium gas turbine 25, the second generator 26；From the second helium-LNG heat exchangers
21 to sequentially pass through second helium compressor 22, the second regenerator 23, the second flue gas-helium heat exchanger 24, the second helium saturating
Flat 25, second regenerator 23 forms the second level circulation 2；Second generator 26 and the phase of the second helium gas turbine 25
Even.It is sequentially connected between all parts by pipeline.
In the electricity generation system, the LNG storage tank 3 passes through a LNG pump 4 and the day of the second helium-LNG heat exchangers 21
Right gas entrance is connected, the gas outlet of the second helium-LNG heat exchangers 21 and the first helium-LNG heat exchangers 11
Gas inlet is connected, and the gas outlet of the first helium-LNG heat exchangers 11 is connected to the voltage regulating station 5.
In addition, in the electricity generation system, the gas inlet of the combustion chamber 6 is connected with the voltage regulating station 5, the burning
The air intake of room 6 is connected with the air outlet slit of the air preheater 7, and the outlet of the combustion chamber 6 and first flue gas-
The smoke inlet of helium heat exchanger 14 is connected, and the exhanst gas outlet of first flue gas-helium heat exchanger 14 and second flue gas-
The smoke inlet of helium heat exchanger 24 is connected, the exhanst gas outlet of second flue gas-helium heat exchanger 24 and the air preheat
The smoke inlet of device 7 is connected.
In the present embodiment, the workflow of the electricity generation system is as follows：
On the one hand, for liquefied natural gas (LNG), first, LNG passes through the LNG pump 4 after being come out from the LNG storage tank 3
7MPa (critical pressure for being more than LNG) is pressurized to, it is in a supercritical state after its overheat to ensure；Then, LNG passes through described
Second helium-LNG heat exchangers 21 of secondary cycle 2, discharge cold energy, the helium in the second helium-LNG heat exchangers 21 are entered
Row precooling, by helium gas cooling to -50 DEG C of low temperature, and LNG itself heat absorptions are warming up to -68.81 DEG C, more than critical-temperature (- 82.3
DEG C), into supercriticality；Afterwards, LNG circulates 1 the first helium-LNG heat exchangers 11 by the first order again, cools down institute
The helium in the first helium-LNG heat exchangers 11 is stated to -20 DEG C, while self-recovery is to normal temperature, as common natural gas；Finally,
By voltage regulating station 5, a part of natural gas is exported by pipeline external user, another part natural gas then transports to combustion chamber 6,
It is used as the fuel of helium Closed Brayton Power Cycle electricity generation system.
On the other hand, burn front and rear gas for combustion chamber 6, and first, the air needed for combustion chamber 6 comes from the sky
Air preheater 7, is preheated using the waste heat of waste gas in air preheater 7 to air, is then sent into the air after preheating and is fired
Room 6 is burnt, and the high-temperature flue gas produced by combustion chamber 6 is burnt first passes through the first flue gas-helium heat exchanger 14, with first order circulation 1
Helium exchanged heat, the temperature of flue gas come out after now exchanging heat from the exhanst gas outlet of first flue gas-helium heat exchanger 14
Still very high, these high-temperature flue gas are again by the second flue gas-helium heat exchanger 24, and the helium for circulating 2 with the second level is exchanged heat,
These last flue gases are preheated by air preheater 7 to air, are discharged to after cooling as waste gas in environment.
Another further aspect, for first order circulation 1, first, the helium of first order circulation 1 is exchanged heat by the first flue gas-helium
Device 14 absorbs the heat of flue gas, is heated to 850 DEG C, subsequently into expansion work in the first helium gas turbine 15, drives first to send out
Motor 16 is generated electricity.Helium after being done work from first helium gas turbine 15, then by the first regenerator 13 (from the second helium
Gas entrance 133 enters, the second helium outlet 134 goes out) carry out backheat.Helium temperature after backheat is still higher (126 DEG C), connects
Into heating boiler 17 and exchanged heat, provide heating or hot water for external user, itself is then cooled to normal temperature.The helium of normal temperature
Pass through the first helium-LNG heat exchangers 11 again, be cooled to -20 DEG C of low temperature in advance by LNG.Helium after cooling enters back into the first helium pressure
Mechanism of qi 12 is boosted, subsequently into the first regenerator 13 (entering from the first helium entrance 131, the first helium outlet 132 goes out), quilt
The higher temperatures helium heating of first helium gas turbine 15 discharge, finally exports 132 helium out from the helium of the first regenerator 13 first
Gas, which is entered back into, absorbs heat in the first flue gas-helium heat exchanger 14, complete the whole process of first order circulation.
In addition, for second level circulation 2, it is similar that the cyclic process circulates 1 process with the first order.In second level circulation 2
Helium absorbs heat by the second flue gas-helium heat exchanger 24, and temperature is increased to 550 DEG C, subsequently into the second helium gas turbine 25
Middle expansion work, drives the second generator 26 to generate electricity.The helium of second helium gas turbine 25 outlet again by the second regenerator 23 (from
Second helium entrance 233 enters, the second helium outlet 234 goes out) backheat is carried out, subsequently enter and enter in the second helium-LNG heat exchangers 21
Row precooling, is cooled to -50 DEG C of low temperature.These low-temperature heliums enter back into the second helium compressor 22 and are compressed boosting, connect
Into the second regenerator (entering from the first helium entrance 231, the first helium outlet 232 goes out) 23, by the first helium gas turbine 25
Export the heating of higher temperatures helium, finally from the helium of the second regenerator 23 first export 232 helium out enter back into the second flue gas-
Heat is absorbed in helium heat exchanger 24, the whole process of second level circulation is completed.
It should be noted that in above-described embodiment, 2 helium-LNG heat exchangers are circulated for first order circulation 1 and the second level
The low-temperature helium of (i.e. helium compressor import) is exported, the helium temperature of helium compressor import is lower in theory, the effect of circulation
Rate is higher, but needs to consider construction costs and actual conditions are determined, and is not limited to the parameter in embodiment.
It should also be noted that, in above-described embodiment, because the low-pressure end of second regenerator 23 is exported in second level circulation 2
The helium temperature of (the second helium outlet 234) is relatively low (about 65 DEG C), so being exchanged heat in the second regenerator 23 and the second helium-LNG
The second heating boiler (not illustrated) is not added between device 21,, can also if helium temperature is higher herein in Practical Project
Heating boiler is added, this portion of energy is made full use of.
As an example, due to the second level circulate 2 and the first order circulation 1 in helium in helium-LNG heat exchangers successively by
LNG is cooled to low-temperature condition, therefore, the temperature of the helium outlet of the second helium-LNG heat exchangers 21 in the second level circulation 2
Degree circulates the temperature of the helium outlet of the first helium-LNG heat exchangers 11 in 1 less than the first order.
As an example, due to the first order circulate 1 and the second level circulation 2 in helium in flue gas-helium heat exchanger successively
By flue gas to the condition of high temperature, therefore, the helium outlet of the first flue gas-helium heat exchanger 14 in the first order circulation 1
Temperature higher than the second level circulate 2 in the second flue gas-helium heat exchanger 24 helium outlet temperature.
Above-described embodiment only illustrative principle of the present utility model and its effect are new not for this practicality is limited
Type.Any person skilled in the art can all be carried out without prejudice under spirit and scope of the present utility model to above-described embodiment
Modifications and changes.Therefore, such as those of ordinary skill in the art without departing from the essence disclosed in the utility model
God and all equivalent modifications completed under technological thought or change, should be covered by claim of the present utility model.
Claims (6)
1. a kind of helium Closed Brayton Power Cycle electricity generation system of two grade utility LNG cold energy, it is characterised in that the electricity generation system
At least include first order circulation, second level circulation, LNG storage tank, voltage regulating station, combustion chamber and air preheater；
First order circulation include the first helium-LNG heat exchangers, the first helium compressor, the first regenerator, the first flue gas-
Helium heat exchanger, the first helium gas turbine, the first generator, the first heating boiler；
First helium compressor, the first regenerator, the first flue gas-helium are sequentially passed through from the first helium-LNG heat exchangers
Gas heat exchanger, the first helium gas turbine, the first regenerator, the first heating boiler form the first order circulation；Described first generates electricity
Machine is connected with first helium gas turbine；
Second level circulation include the second helium-LNG heat exchangers, the second helium compressor, the second regenerator, the second flue gas-
Helium heat exchanger, the second helium gas turbine, the second generator；
Second helium compressor, the second regenerator, the second flue gas-helium are sequentially passed through from the second helium-LNG heat exchangers
Gas heat exchanger, the second helium gas turbine, the second regenerator form the second level circulation；Second generator and second helium
Gas turbine is connected；
The LNG storage tank is connected by a LNG pump with the gas inlet of the second helium-LNG heat exchangers, second helium
The gas outlet of gas-LNG heat exchangers is connected with the gas inlet of the first helium-LNG heat exchangers, first helium
The gas outlet of gas-LNG heat exchangers is connected to the voltage regulating station；
The gas inlet of the combustion chamber is connected with the voltage regulating station, the air intake of the combustion chamber and the air preheat
The air outlet slit of device is connected, and the outlet of the combustion chamber is connected with the smoke inlet of first flue gas-helium heat exchanger, described
The exhanst gas outlet of first flue gas-helium heat exchanger is connected with the smoke inlet of second flue gas-helium heat exchanger, and described second
The exhanst gas outlet of flue gas-helium heat exchanger is connected with the smoke inlet of the air preheater.
2. the helium Closed Brayton Power Cycle electricity generation system of two grade utility LNG cold energy according to claim 1, its feature exists
In：The concrete structure of first order circulation is：First helium is passed through in the helium outlet of the first helium-LNG heat exchangers
Air pressure mechanism of qi is connected with the first helium entrance of first regenerator, the outlet of the first helium of first regenerator with it is described
The helium entrance of first flue gas-helium heat exchanger is connected, the helium outlet and described first of first flue gas-helium heat exchanger
The helium entrance of helium gas turbine is connected, and the helium outlet of first helium gas turbine and the second helium of first regenerator enter
Mouth is connected, and the second helium outlet of first regenerator is by first heating boiler and the first helium-LNG heat exchange
The helium entrance of device is connected, and first generator is connected with first helium gas turbine.
3. the helium Closed Brayton Power Cycle electricity generation system of two grade utility LNG cold energy according to claim 1, its feature exists
In：The concrete structure of second level circulation is：Second helium is passed through in the helium outlet of the second helium-LNG heat exchangers
Air pressure mechanism of qi is connected with the first helium entrance of second regenerator, the outlet of the first helium of second regenerator with it is described
The helium entrance of second flue gas-helium heat exchanger is connected, the helium outlet and described second of second flue gas-helium heat exchanger
The helium entrance of helium gas turbine is connected, and the helium outlet of second helium gas turbine and the second helium of second regenerator enter
Mouth is connected, and the second helium outlet of second regenerator is connected with the helium entrance of the second helium-LNG heat exchangers, institute
The second generator is stated with second helium gas turbine to be connected.
4. the helium Closed Brayton Power Cycle electricity generation system of two grade utility LNG cold energy according to claim 3, its feature exists
In：It can also be set between the second helium outlet of second regenerator and the helium entrance of the second helium-LNG heat exchangers
Put one second heating boiler.
5. the helium Closed Brayton Power Cycle electricity generation system of two grade utility LNG cold energy according to claim 1, its feature exists
In：The temperature of the helium outlet of the second helium-LNG heat exchangers in the second level circulation is less than in first order circulation
The temperature of the helium outlet of first helium-LNG heat exchangers.
6. the helium Closed Brayton Power Cycle electricity generation system of two grade utility LNG cold energy according to claim 1, its feature exists
In：The temperature of the helium outlet of the first flue gas-helium heat exchanger in the first order circulation is higher than in the circulation of the second level
The second flue gas-helium heat exchanger helium outlet temperature.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621471427.0U CN206346787U (en) | 2016-12-29 | 2016-12-29 | A kind of helium Closed Brayton Power Cycle electricity generation system of two grade utility LNG cold energy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621471427.0U CN206346787U (en) | 2016-12-29 | 2016-12-29 | A kind of helium Closed Brayton Power Cycle electricity generation system of two grade utility LNG cold energy |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206346787U true CN206346787U (en) | 2017-07-21 |
Family
ID=59323184
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621471427.0U Active CN206346787U (en) | 2016-12-29 | 2016-12-29 | A kind of helium Closed Brayton Power Cycle electricity generation system of two grade utility LNG cold energy |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206346787U (en) |
-
2016
- 2016-12-29 CN CN201621471427.0U patent/CN206346787U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106837441B (en) | A kind of gas turbine using LNG cold energy-nitrogen Brayton cycle combined generating system | |
| CN106545370A (en) | A kind of helium Closed Brayton Power Cycle electricity generation system of two grade utility LNG cold energy | |
| CN103206317B (en) | Cascaded recycling system for waste heat of internal combustion generating set | |
| CN111022138B (en) | Supercritical carbon dioxide power generation system based on absorption heat pump waste heat recovery | |
| CN105258384B (en) | A kind of thermoelectric cold polygenerations systeme of integrated thermochemical process | |
| CN104697239B (en) | A kind of new Organic Rankine Cycle cold, heat and power triple supply system of biomass driving | |
| CN105605827A (en) | Complementary type distributed energy system integrating internal combustion engine tail gas into thermochemical process | |
| CN205895337U (en) | Coupled system that pressure energy and cool and thermal power trigeminy supplied | |
| CN108843418A (en) | A kind of double pressure high efficiency burnt gas supercritical carbon dioxide association circulating power generation systems | |
| CN205638705U (en) | Utilize LNG system ice and use natural gas to supply system as cool and thermal power trigeminy of fuel | |
| CN110005486A (en) | A kind of zero carbon emission cold, heat electric shaft producting device and working method based on full thermal cycle | |
| Du et al. | Performance and economy of trigenerative adiabatic compressed air energy storage system based on multi-parameter analysis | |
| CN107387183A (en) | The power circulation system and electricity-generating method that a kind of cold energy of liquefied natural gas generates electricity | |
| CN207194972U (en) | The power circulation system that a kind of cold energy of liquefied natural gas generates electricity | |
| CN204574604U (en) | The novel Organic Rankine Cycle cold, heat and power triple supply system that a kind of living beings drive | |
| CN203532054U (en) | Combined circulation system of microturbine based on renewable energy sources | |
| CN103452670A (en) | Micro gas turbine combined circulating system based on renewable energy sources | |
| CN206346787U (en) | A kind of helium Closed Brayton Power Cycle electricity generation system of two grade utility LNG cold energy | |
| CN203756253U (en) | Low-temperature type organic Rankine cycle waste heat power generation system for steel plant | |
| CN216282169U (en) | LNG power station combined cycle unit inlet gas cooling system with cold accumulation | |
| CN215174935U (en) | High-low temperature heat storage peak shaving system of thermal power plant | |
| CN114934843A (en) | Multi-energy efficient complementary integrated dual-pressure ORC combined cycle power generation system | |
| CN209539413U (en) | A kind of low parameter heat recovery system | |
| CN204729187U (en) | A kind of distributed energy resource system based on Stirling engine | |
| CN204534516U (en) | A kind of Novel supercritical carbon dioxide coal-burning boiler |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant |