Utility model content
The purpose of the utility model is to provide a kind of miniature gas turbines, utilize the heat of tail gas to the pressure of gas turbine
The air of the import of mechanism of qi is cooled down, and is heated to the gas for entering combustion chamber, can be to the tail gas of micro-gas-turbine
The heat of middle carrying is made full use of, and the thermal efficiency of gas turbine is further increased.
In order to achieve the above objectives, the utility model adopts the following technical solutions:
A kind of miniature gas turbine, including compressor 10, shaft 20, combustion chamber 11, turbine 12, lithium bromide chiller 17 and
Inlet gas cooling device 18;
The compressor 10, turbine 12 are connected by shaft 20, combustion chamber 11 be set to compressor 10 and turbine 12 it
Between, the exhaust outlet of compressor 10 is connected to the air inlet of combustion chamber 11, and the exhaust outlet of combustion chamber 11 is connected to the air inlet of turbine 12
Mouthful, the exhaust outlet of turbine 12 connects lithium bromide chiller 17, provides heat source, the refrigeration member of lithium bromide chiller 17 for lithium bromide chiller 17
Part is connected to inlet gas cooling device 18, and inlet gas cooling device 18 is connected to the air inlet of compressor 10.
In some specific embodiments, one end far from the turbine 12 of compressor 10 is provided with generator 13, sends out
Motor 13 is connect with compressor 10, turbine 12 by shaft 20.
In some specific embodiments, the lithium bromide chiller 17 includes: the sequentially connected generator 171 of head and the tail, cold
Condenser 172, the cooling module 173, circulating pump 175 and absorber 174;The exhaust outlet of the turbine 12 connects the generator
171, heat source is provided for generator 171, generator 171 is provided with lithium-bromide solution;The cooling module is evaporator, and air inlet is cold
But device 18 and the evaporator heat exchange.
In some specific embodiments, the lithium bromide chiller 17 further includes heat exchanger 176, to from the generator
The high temperature concentrated solution of 171 outflows carries out heat exchange with the low temperature weak solution flowed out from the absorber 174.
In some specific embodiments, circulating pump 175 is provided between the generator 171 and the absorber 174.
In some specific embodiments, be provided between the inlet gas cooling device 18 and the air inlet of compressor 10 into
Gas dehumidifying filter device 19.
In some specific embodiments, air point is provided between the exhaust outlet and lithium bromide chiller 17 of the turbine 12
Device 14 is flowed, which is divided into two branches for the exhaust of turbine 12, and one of branch connects lithium bromide machine
Group 17, another branch connect the gas access of the regenerator 15 in miniature gas turbine.
In some specific embodiments, the high-temperature gas entrance of the regenerator 15 connects the air flow device
14, lead to the outlet of 15 high-temperature gas of regenerator atmosphere, and the exhaust outlet of the cryogenic gas entrance connection compressor 10 of regenerator 15 returns
The cryogenic gas outlet of hot device 15 is connected to the air inlet of combustion chamber 11.
It further include wind power generation plant 21 and energy storage device 22 in some specific embodiments;
The exhaust outlet of turbine 12 connects the wind power generation plant 21, and the exhaust outlet of the wind power generation plant 21 connects institute
State lithium bromide chiller 17;
The wind power generation plant 21 is connect with the energy storage device 22.
In some specific embodiments, it is arranged between the exhaust outlet and lithium bromide chiller 17 of wind power generation plant 21
There is air part flow arrangement 14, the air flow device 14 is used to the exhaust of wind power generation plant 21 being divided into two branches,
In branch connect lithium bromide chiller 17, another branch connects regenerator 15.
In conclusion the utility model provides a kind of miniature gas turbine, including compressor, shaft, combustion chamber, thoroughly
Flat, lithium bromide chiller and inlet gas cooling device;The exhaust outlet of turbine connects lithium bromide chiller, and lithium bromide chiller is connected to air inlet
Cooling device, inlet gas cooling device are connected to the air inlet of compressor.The miniature gas turbine by setting lithium bromide chiller and
Inlet gas cooling device is freezed using the heat of tail gas, is cooled down to the air of the air inlet of the compressor of gas turbine, energy
It is enough that the heat carried in the tail gas of micro-gas-turbine is made full use of, further increase the thermal efficiency of gas turbine.
Miniature gas turbine provided by the utility model has following beneficial technical effect:
1, the air inlet of miniature gas turbine is cooled down to improve the thermal efficiency using the heat in tail gas.
2, the dehumidifying filter device being arranged between the cooling device and air inlet of miniature gas turbine dehumidifies to air inlet
And filtering.
3, the energy that the tail gas of miniature gas turbine carries has obtained reasonable distribution and utilization by air flow device, into
One step improves the thermal efficiency.
4, wind power generation plant is set in the exhaust end of turbine, the pressure in turbine tail gas is utilized, improves miniature combustion
The thermal efficiency of gas-turbine.
5, the exhaust of wind power generation plant is used further to heat the gas for entering combustion chamber by regenerator, is utilized
Thermal energy in turbine tail gas, further improves the thermal efficiency of miniature gas turbine.
Specific embodiment
To make the objectives, technical solutions and advantages of the present invention clearer, With reference to embodiment
And referring to attached drawing, the utility model is further described.It should be understood that these descriptions are merely illustrative, and do not really want
Limit the scope of the utility model.In addition, in the following description, descriptions of well-known structures and technologies are omitted, to avoid not
Necessarily obscure the concept of the utility model.
The utility model provides a kind of miniature gas turbine, referring to Fig. 1 comprising compressor 10, shaft 20, combustion chamber
11, turbine 12, lithium bromide chiller 17 and inlet gas cooling device 18;Compressor 10, turbine 12 are connected by shaft 20, combustion chamber
11 are set between compressor 10 and turbine 12, the air inlet of the exhaust outlet connection combustion chamber 11 of compressor 10, combustion chamber 11
Exhaust outlet is connected to the air inlet of turbine 12, and the exhaust outlet of turbine 12 connects lithium bromide chiller 17, provides for lithium bromide chiller 17
Heat source, the cooling module of lithium bromide chiller 17 are connected to inlet gas cooling device 18, and inlet gas cooling device 18 is connected to compressor 10
Air inlet.
Air inlet of the utility model by setting lithium bromide chiller 17 using the tail gas of miniature gas turbine to compressor 10
It is cooled down, to improve the efficiency of miniature gas turbine.The temperature of the inlet air of miniature gas turbine is lower, gas in air
The speed of molecular motion is lower, and work done during compression needed for reaching same pressure is with regard to smaller, therefore the initial temperature of gas is smaller, miniature combustion
The ratio function of the output of gas-turbine is higher, i.e. the efficiency of miniature gas turbine is higher.
Further, one end far from the turbine 12 of compressor 10 is provided with generator 13, generator 13 with calm the anger
Machine 10, turbine 12 are connected by shaft 20, and the shaft work for exporting turbine 12 is converted into electric energy storage or drives electronic set
Standby work.
Further, the lithium bromide chiller 17 carries out cooling concrete principle such as to the air inlet of compressor 10 using tail gas
Shown in the following figure.
Lithium bromide chiller 17 may include: the sequentially connected generator 171 of head and the tail, condenser 172, cooling module 173, follow
Ring pump 175 and absorber 174, lithium bromide chiller 17 can also include heat exchanger 176, and generator 171 is set to turbine 12
Exhaust outlet.Cooling module concretely evaporator, the evaporator heat exchange of inlet gas cooling device 18 and lithium bromide chiller 17.
Wherein, the partial tail gas of turbine 12 is shunted to the heating for being used for generator 171, when lithium bromide water solution is in generator
After heating in 171 by the tail gas of turbine 12, the water in lithium bromide water solution is constantly vaporized, with the continuous vaporization of dampening, hair
Lithium bromide water solution concentration in raw device 171 constantly increases, and into absorber 174, vapor enters condenser 172, is condensed
It is condensed after cooling water temperature in device 172, becomes the liquid water of high pressure low temperature.
When the water in condenser 172 enters evaporator 173 by throttle valve (not shown), rapid expansion and vapour
Change, and largely absorb the heat of chilled water in evaporator 173 in vaporescence, to achieve the purpose that cooling refrigeration, herein
In the process, low temperature vapor enters absorber 174, and the lithium bromide water solution being absorbed in device 174 absorbs, and solution concentration is gradually
It reduces, then generator 171 is sent back to by circulating pump 175, complete entire circulation, so move in endless cycles, continuously produce cooling capacity, due to bromine
Change lithium weak solution to be cooled in absorber 174, temperature is lower, in order to save the heat of heat dilute solution, improves entire dress
The thermal efficiency set increases a heat exchanger 176 in systems, the high temperature concentrated solution and absorber for allowing generator 171 to flow out
The low temperature weak solution of 174 outflows carries out heat exchange, improves the temperature that weak solution enters generator 171, just realizes utilization in this way
The tail gas of turbine 12 passes through the purpose that lithium bromide chiller 17 freezes.
Specifically, the chilled water that lithium bromide chiller 17 generates is connected to inlet gas cooling device 18 and realizes circulation, thus
The input of cold source is provided for inlet gas cooling device 18, inlet gas cooling device 18 carries out the air inlet of compressor 10 using chilled water
Cooling down.
Further, air inlet dehumidifying filtering dress is additionally provided between inlet gas cooling device 18 and the air inlet of compressor 10
Set 19.If bringing more moisture or sour gas, by running for a long time, compressor 10 in the air inlet of compressor 10 into
Blade be easy to be corroded or surface oxidisation, influence the service life of compressor 10.It is provided in the dehumidifying filter device 19
Dehumidify filter core and resin filter element, to filter out to the moisture and sour gas that have in air inlet.
Optionally, it is provided with air flow device 14 between the exhaust outlet of turbine 12 and lithium bromide chiller 17, the air
Part flow arrangement 14 is used to for the exhaust of turbine 12 being divided into two branches, and one of branch connects lithium bromide chiller 17, and another
A branch then passes through 15 row Xiang great Qi of regenerator.The exhaust of turbine 12 can be divided into two branch by the way that air flow device 14 is arranged
Road is utilized, and is cooled down all the way by lithium bromide chiller 17 to the air inlet of compressor 10, another way then utilizes the heat of tail gas
It measures and the gas for entering combustion chamber 11 is heated.The allocation proportion of air flow device 14 can be adjusted according to extraneous temperature
Section, such as in cold winter, air flow device 14 can close the branch for lithium bromide chiller 17 of entering, and by all tails
Gas heat is for heating.
Specifically, the high-temperature gas entrance of regenerator 15 connects air flow device 14, the outlet of 15 high-temperature gas of regenerator
Lead to atmosphere, the exhaust outlet of the cryogenic gas entrance connection compressor 10 of regenerator 15, the cryogenic gas of regenerator 15, which exports, to be connected
It is connected to the air inlet of combustion chamber 11.
The tail gas of turbine 12 is further rationally utilized by using air flow device 14, to improve tail gas heat quantity
Utilization rate, further improve the thermal efficiency of miniature gas turbine.
The utility model another embodiment provides for a kind of miniature gas turbines, referring to Fig. 3 comprising compressor
10, shaft 20, combustion chamber 11, turbine 12, wind power generation plant 21 and regenerator 15;Compressor 10, turbine 12 pass through shaft 20
Connection, combustion chamber are set between compressor 10 and turbine 12, the air inlet of the exhaust outlet connection combustion chamber 11 of compressor 10, combustion
The exhaust outlet for burning room 11 is connected to the air inlet of turbine 12, and the exhaust outlet of turbine 12 connects wind power generation plant 21, regenerator 15
High-temperature gas entrance connection wind power generation plant 21 exhaust, the exhaust outlet of wind power generation plant 21 connects lithium bromide chiller
17, lead to the outlet of 15 high-temperature gas of regenerator atmosphere, and the exhaust outlet of the cryogenic gas entrance connection compressor 10 of regenerator 15 returns
The cryogenic gas outlet of hot device 15 is connected to the air inlet of combustion chamber 11, is added using the waste heat in tail gas to the air inlet of combustion chamber 11
Heat.
By the setting of above structure, so that the waste heat of the tail gas of turbine 12 is recycled by regenerator 15,
Wind power generation plant is arranged in the exhaust end of turbine, and the pressure in turbine tail gas is utilized, improves the thermal effect of miniature gas turbine
Rate so that the overbottom pressure in the tail gas of turbine 12 is recycled by wind power generation plant 21, and is done work by wind power generation plant
The heat carried in gas afterwards is then further utilized by regenerator, i.e., the kinetic energy in the tail gas of miniature gas turbine and
Thermal energy has obtained reasonable recycling simultaneously, improves the whole thermal efficiency of miniature gas turbine.
Further, the miniature gas turbine of the utility model further includes and electric storage device 22, as shown in Fig. 3, wind-force
Power generator 21 is connected to electric storage device 22, so that the electric energy that wind power generation plant 21 generates is stored into electric storage device 22.
Generator 13 is also connected to electric storage device 22 simultaneously.Since when environment temperature is lower, miniature gas turbine can not normally start,
Therefore, when temperature is lower in winter, it is often necessary to use redundant electrical power and be preheated to miniature gas turbine, quickly to start
Miniature gas turbine.And the above-mentioned electric energy generated using tail gas overbottom pressure can be first stored in electric storage device 22, in miniature gas
Use when turbine needs pipeline start up by preheating, certainly, which also can be applied to urgent electricity consumption or illumination etc..
Optionally, air flow device is provided between the exhaust outlet of wind power generation plant 21 and lithium bromide chiller 17
14, which is used to for the exhaust of wind power generation plant 21 being divided into two branches, and one of branch connects bromine
Change lithium unit 17, and another branch then passes through 15 row Xiang great Qi of regenerator.It can be by wind-force by setting air flow device 14
The exhaust of power generator 21 is divided into two branches and is utilized, all the way by lithium bromide chiller 17 to the air inlet of compressor 10 into
Row cooling, another way then heat the gas for entering combustion chamber 11 using the heat of tail gas.Point of air flow device 14
It can be adjusted according to extraneous temperature with ratio, such as in cold winter, air flow device 14 can will enter lithium bromide
The branch of unit 17 is closed, and all tail gas heat quantities are used to heat.
The exhaust of wind power generation plant 21 is further rationally utilized by using air flow device 14, to improve
The utilization rate of tail gas heat quantity further improves the thermal efficiency of miniature gas turbine.
Further, device of solar generating is additionally provided between the cryogenic gas outlet of regenerator 15 and combustion chamber 11
16, device of solar generating 16 is also connected to electric storage device 22.The device of solar generating 16 be used for enter combustion chamber 11 into
The gas of port is further heated.
Specifically, as shown in figure 4, the device of solar generating 16 include thermal storage device 165, sequentially connected condenser 161,
Heat dump 162, thermoelectric conversion device 163 and electric power variation device 164, thermal storage device 165 connect heat dump 162 and thermoelectricity simultaneously
Conversion equipment 163, thermal storage device 165 are connected to the air inlet of combustion chamber 11, and electric power variation device 164 is then connected to electric storage device
22.Therefore, which can both be the inlet air heating of combustion chamber 11, while can use the heat of solar energy
Certain electric energy is stored, for the preheating or urgent electricity consumption or illumination etc. before starting for miniature gas turbine.
In addition, when the heat that heat dump 162 is absorbed into is more than the transfer capability of thermoelectric conversion device 163,165 meeting of thermal storage device
Heat more than needed is stored into storage, its specified amount of translation is not achieved in the heat that heat dump 162 supplies thermoelectric conversion device 163
When, the heat supplement of storage can be then supplied to thermoelectric conversion device 163 by thermal storage device 165, and the benefit of solar energy can be improved in this way
With rate.
Further, thermal storage device 165 is connected with temperature sensor (not shown), and temperature sensor is set to regenerator
15 cryogenic gas outlet, when the temperature that temperature sensor detects that the cryogenic gas of regenerator 15 exports reaches predetermined value,
Then the gas for entering combustion chamber 11 is heated in the pause of thermal storage device 165, and the heat of thermal storage device 165 is then completely used for supplement power generation.Cause
For when the gas temperature itself come out from regenerator 15 has had relatively high temperature, thermal storage device 165 again heats it,
Then the efficiency of heat exchange is substantially reduced, and being used to generate electricity then by the heat of thermal storage device 165 at this time, it is higher to the utilization rate of solar energy.
Further, condenser 161 is set to the housing outer surface of miniature gas turbine, for converging solar energy.
In conclusion the utility model provides a kind of miniature gas turbine, including compressor, shaft, combustion chamber, thoroughly
Flat, lithium bromide chiller and inlet gas cooling device;The exhaust outlet of turbine connects lithium bromide chiller, and lithium bromide chiller is connected to air inlet
Cooling device, inlet gas cooling device are connected to the air inlet of compressor.The miniature gas turbine by setting lithium bromide chiller and
Inlet gas cooling device is freezed using the heat of tail gas, is cooled down to the air of the air inlet of the compressor of gas turbine, energy
It is enough that the heat carried in the tail gas of micro-gas-turbine is made full use of, further increase the thermal efficiency of gas turbine.
It should be understood that the above-mentioned specific embodiment of the utility model is used only for exemplary illustration or explains this reality
With novel principle, without constituting limitations of the present invention.Therefore, in the spirit and scope without departing from the utility model
In the case of any modification, equivalent substitution, improvement and etc. done, should be included within the scope of protection of this utility model.In addition,
The appended claims for the utility model are intended to cover to fall into attached claim scope and boundary or this range and boundary
Whole change and modification in equivalent form.