CN206319962U - LNG gas turbines with cascade EDFA - Google Patents
LNG gas turbines with cascade EDFA Download PDFInfo
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- CN206319962U CN206319962U CN201621467322.8U CN201621467322U CN206319962U CN 206319962 U CN206319962 U CN 206319962U CN 201621467322 U CN201621467322 U CN 201621467322U CN 206319962 U CN206319962 U CN 206319962U
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- lng
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- heat exchanger
- natural gas
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Abstract
A kind of LNG gas turbines with cascade EDFA, including combustion chamber, turbine and compressor, the compressor is used to provide compressed air to the combustion chamber with the combustion chamber, combustion gas working medium of the turbine with the combustion chamber to receive the combustion chamber output, the compressor and the turbine drive connection, the compressor includes prime compression impellor, rear class compression impellor and the compressed air channel being communicated between the prime compression impellor and rear class compression impellor, the gas turbine also includes the natural gas transportation passage that natural gas is conveyed to the combustion chamber, the compressor also includes First Heat Exchanger, the natural gas that the First Heat Exchanger is constructed and is connected in the natural gas transportation passage is exchanged heat to reduce the temperature of the compressed air with the compressed air in the compressed air channel.
Description
Technical field
The present invention relates to gas turbine field, more particularly to a kind of LNG with cascade EDFA for improving combustion engine efficiency
Gas turbine.
Background technology
When gas turbine works, compressor impeller compressed air enters combustion chamber and fuel mixed combustion.There is a kind of raising
The method of combustion engine power, is to increase number of compression stages to improve air pressure ratio.It can so have a problem that, air compresses by leading portion
Shi Wendu is improved, now again when back segment further compresses with regard to relative difficulty some.Then with regard between compressor stage plus in cold set
The standby efficiency to improve compressor.Combustion engine for burning natural gas, is generally exchanged heat by water.It is also a kind of to improve combustion engine efficiency
Method be to enter compressor before air heat-exchange cooling, and with normal temperature air exchange heat medium must must compare air themperature
It is much lower efficiently to cool down.The auxiliary equipment of this heat exchange input is more, and heat exchange efficiency is not high, and volume is relatively large.
LNG environment-protecting cleans, price is relatively low.Combustion engine for burning LNG, LNG cold energy contains abundant, and it is one not to be used
Plant and greatly waste.
The content of the invention
In view of this, the present invention proposes a kind of LNG gas turbines with cascade EDFA for making full use of LNG cold energy.
The present invention proposes a kind of LNG gas turbines with cascade EDFA, including combustion chamber, turbine and compressor, described
Compressor is used to provide compressed air to the combustion chamber with the combustion chamber, and the turbine is used with the combustion chamber
To receive the combustion gas working medium of the combustion chamber output, the compressor and the turbine drive connection, before the compressor includes
Level compression impellor, rear class compression impellor and the compressed air being communicated between the prime compression impellor and rear class compression impellor
Passage, the gas turbine also includes the natural gas transportation passage that natural gas is conveyed to the combustion chamber, and the compressor is also wrapped
First Heat Exchanger is included, the LNG that the First Heat Exchanger is constructed and is connected in the natural gas transportation passage and the pressure
The temperature that compressed air in contracting air duct is exchanged heat to reduce the compressed air is while at least partly described LNG vapour
Change.
In one embodiment, the compressor includes air input passage and the second heat exchanger, the air input passage
Connected with the prime compression impellor with to the prime compression impellor input environment air, second heat exchanger construction and company
It is connected into so that the LNG in the natural gas transportation passage is exchanged heat to reduce with the input air in the air input passage
The temperature of the input air at least partly described LNG vaporization simultaneously, in the flow direction of the natural gas transportation passage, described the
Two heat exchangers are located at the First Heat Exchanger upstream.
In one embodiment, the natural gas transportation passage end connects a LNG delivery pumps, and the other end is communicated to the combustion
Room is burnt, the LNG delivery pumps are used to pump the LNG to the natural gas transportation passage.
The present invention also proposes a kind of LNG gas turbines with cascade EDFA, including combustion chamber, turbine and compressor, institute
Compressor is stated to be used to provide compressed air, the turbine and the combustion chamber to the combustion chamber with the combustion chamber
Combustion gas working medium to receive the combustion chamber output, the compressor and the turbine drive connection, the compressor include
Compressed air channel is communicated between some grades of compression units, the compression unit per two-stage neighboring, the gas turbine also includes
The natural gas transportation passage of natural gas is conveyed to the combustion chamber, the compressor also includes some First Heat Exchangers, wherein often
One First Heat Exchanger is corresponding with a wherein compressed air channel, and at least one of which First Heat Exchanger constructs and is connected to institute
State the LNG in natural gas transportation passage exchanged heat with the compressed air in the corresponding compressed air channel it is described to reduce
The temperature of compressed air is while at least partly described LNG vaporization.
In one embodiment, the compressor includes air input passage and the second heat exchanger, the air input passage
Connected with the first order compression unit of some grades of compression units with to the first order compression unit input environment air, institute
State the second heat exchanger construction and the LNG being connected in the natural gas transportation passage with it is defeated in the air input passage
Enter air to be exchanged heat to reduce the temperature of the input air at least partly LNG vaporization simultaneously, it is defeated in the natural gas
Send in the flow direction of passage, second heat exchanger is located at the upstream of any one First Heat Exchanger.
In one embodiment, the natural gas transportation passage end connects a LNG delivery pumps, and the other end is communicated to the combustion
Room is burnt, the LNG delivery pumps are used to pump the LNG to the natural gas transportation passage.
In summary, the present invention provides a kind of LNG gas turbines with cascade EDFA.The LNG gas turbines are calmed the anger
Machine includes some grades of compression units, and compressed air channel, each compressed air are communicated between the compression unit per two-stage neighboring
One First Heat Exchanger is set on passage so that the compressed air in LNG and compressed air channel in natural gas transportation passage is changed
Heat is to reduce the temperature of compressed air.In addition, the present invention is also set in the air input passage connected with first order compression unit
Put the second heat exchanger so that LNG is exchanged heat to reduce the temperature of input air with input air.The LNG combustion gas wheels of the present invention
Machine absorbs the heat energy of compressed air between the input air and level of compressor using LNG as low-temperature receiver to vaporize LNG.Take full advantage of
The energy that LNG contains in itself, reduces the volume of heat transmission equipment, improves heat exchange efficiency, increases capacity usage ratio, with a kind of more preferable
Mode improves the efficiency of gas turbine, reduces pollutant emission, saves use cost.
Brief description of the drawings
Fig. 1 is the simplification structural representation of the LNG gas turbines of the present invention.
Embodiment
Before describing the embodiments in more detail, it should be understood that the invention is not restricted to institute hereafter or in accompanying drawing in the application
The detailed construction or arrangement of elements of description.The embodiment that the present invention can realize for other manner.Furthermore, it is to be understood that this paper institutes
The wording and term used is solely for describing purposes, should not the explanation of being construed as limiting property." comprising " used herein, "comprising",
The similar wording such as " having " is meant comprising items listed thereafter, its equivalent and other additional things.Particularly, description is worked as
When " certain element ", the quantity that the present invention does not limit the element can also include multiple as one.
The present invention provides a kind of LNG gas turbines with cascade EDFA, and the LNG gas turbines include combustion chamber, turbine
And compressor.Compressor is used to provide compressed air to combustion chamber with combustion chamber, and turbine is with combustion chamber to receive
The combustion gas working medium of combustion chamber output, compressor and turbine drive connection.LNG gas turbines also include conveying natural gas to combustion chamber
Natural gas transportation passage, the natural gas transportation passage end connects a LNG delivery pumps, and LNG delivery pumps are to by natural
Gas transfer passage pumps LNG to combustion chamber, and the other end is communicated to combustion chamber.
Compressor includes some grades of compression units, air input passage, some First Heat Exchangers and one second heat exchanger.Its
Middle air input passage connects to input to first order compression unit with the first order compression unit of some grades of compression units
It is defeated in surrounding air, the second heat exchanger construction and the LNG and air input passage that are connected in natural gas transportation passage
Enter air to be exchanged heat, to reduce the temperature of input air, while at least part LNG vaporization.So, the second heat exchanger is passed through
Natural gas is actually the gaseous mixture of LNG/ gaseous natural gas.Compressed air is communicated between compression unit per two-stage neighboring to lead to
Road, each First Heat Exchanger is corresponding with a wherein compressed air channel, and each First Heat Exchanger constructs and is connected to day
LNG in right gas transfer passage is exchanged heat with the compressed air in corresponding compressed air channel, to reduce compressed air
Temperature.
Specifically, some First Heat Exchangers and the second heat exchanger are respectively positioned on natural gas transportation passage, the second heat exchanger
It is also located in air input passage, to realize LNG and input air heat exchange, makes at least part LNG vaporization, reduce input air
Temperature；Some First Heat Exchangers are located on corresponding compressed air channel respectively, to realize changing for compressed air between LNG and level
The temperature of compressed air between heat, reduction stages, and make at least part LNG vaporization.In the flow direction of natural gas transportation passage, second changes
Hot device is located at the upstream of any one First Heat Exchanger.
It is specifically described below so that compressor has two stages of compression unit as an example.As shown in Figure 1 there is provided one between level
The LNG gas turbines 10 of cooling, the LNG gas turbines 10 include combustion chamber 12, turbine 14, compressor 16 and defeated to combustion chamber 12
Send the natural gas transportation passage 18 of natural gas.Combustion chamber 12 includes entry of combustion chamber 20 and combustor exit 22, and turbine 14 includes
Turbine entrance 24 and turbine outlet 26.Turbine entrance 24 connects to receive combustion gas working medium with combustor exit 22, compressor 16 with
Entry of combustion chamber 20 connects to provide compressed air to combustion chamber 12.One end of natural gas transportation passage 18 and a LNG delivery pumps
28 connections, the other end is communicated to combustion chamber 12, and LNG delivery pumps 28 are used to pump LNG, LNG vaporization to natural gas transportation passage 18
Backward combustion chamber 12 is conveyed.
In an illustrated embodiment, compressor 16 includes two stages of compression unit, and the two stages of compression unit includes prime pressure
Gas impeller 30 and rear class compression impellor 32, compressed air channel is communicated between prime compression impellor 30 and rear class compression impellor 32
34.Prime compression impellor 32 includes prime compression impellor entrance 36 and prime compression impellor outlet 38, and rear class compression impellor 32 is wrapped
Rear class compression impellor entrance 40 and rear class compression impellor outlet 42 are included, rear class compression impellor outlet 42 is connected with combustion chamber 12.Before
Compressed air channel 34 is formed between level compression impellor outlet 38 and rear class compression impellor entrance 40.
Compressor 16 also includes air input passage 44, the heat exchanger 48 of First Heat Exchanger 46 and second.Air input passage
44 connect with prime compression impellor entrance 36 so as to the input environment air of prime compression impellor 30, the second heat exchanger 48 is constructed and connected
It is connected into so that the LNG in natural gas transportation passage 18 is exchanged heat with the input air in air input passage 44, it is defeated to reduce
Enter the temperature of air, while so that LNG vaporization.First Heat Exchanger 46 is constructed and is connected in natural gas transportation passage 18
LNG is exchanged heat with the compressed air in compressed air channel 34, to reduce the temperature of compressed air, while further such that
LNG vaporization.
In an illustrated embodiment, the heat exchanger 48 of First Heat Exchanger 46 and second is located on natural gas transportation passage 18.Its
In, the second heat exchanger 48 is also located in air input passage 44, to realize LNG and input air heat exchange；First Heat Exchanger 46
It is also located on compressed air channel 34, to realize the heat exchange of compressed air between LNG and level.In the flow direction of natural gas transportation passage 18
On, the second heat exchanger 48 is located at the upstream of First Heat Exchanger 46.
The operational process to the LNG gas turbines of the present invention is briefly described below.
During start, LNG delivery pumps 28 are first run, and conveying LNG enters the second heat exchanger 48, into prime compression impellor 30
The LNG that air is first passed through in the second heat exchanger 48, the second heat exchanger 48 is cooled down to input air, while LNG also can
Carry out a certain degree of vaporization.The gaseous natural gas for vaporizing incomplete LNG and/or low temperature continues to flow into First Heat Exchanger
46.The LNG/ gaseous natural gas that the air compressed through prime compression impellor 30 passes through in First Heat Exchanger 46, First Heat Exchanger 46
Above-mentioned compressed air is cooled down, the compressed air after cooling is passed through rear class compression impellor 32 and continues to compress, after heat absorption
The gaseous natural gas of vaporization is passed through combustion chamber 14, and the air after being compressed through rear class compression impellor 32 is passed through combustion chamber 14.After vaporization
The mixed combustion in combustion chamber 14 of gaseous natural gas and compressed air, promote turbine 16 turbine acting.
Above-described embodiment is illustrated for two stages of compression unit, i.e. prime compression impellor and rear class compression impellor.Should
When understanding, for prime compression impellor and rear class compression impellor are just for any two successive stages compression impellor.For many
Remaining two stages of compression unit, the situation of such as 3 grades compression units, first order impeller and second level impeller constitute two successive stages, then and the
One stage impeller is referred to as prime, and second level impeller is referred to as rear class.Second level impeller and third level impeller also constitute two successive stages,
Now second level impeller is referred to as prime, and third level impeller is referred to as rear class.
It should be appreciated that in the above-described embodiments, compressor includes the two-stage or the pressure more than two-stage of same compressor
Gas impeller.In other embodiments, each compression unit of compressor can also implement into single compressor, now each compressor
Can be coaxially connected with turbine.When the compression unit of compressor is single compressor, its structure setting mode is calmed the anger with above-mentioned
The structure setting mode of impeller is similar, differs only in compression impellor being substituted for compressor.
In summary, the present invention provides a kind of LNG gas turbines with cascade EDFA.The LNG gas turbines are calmed the anger
Machine includes some grades of compression units, and compressed air channel, each compressed air are communicated between the compression unit per two-stage neighboring
One First Heat Exchanger is set on passage so that the compressed air in LNG and compressed air channel in natural gas transportation passage is changed
Heat is to reduce the temperature of compressed air, while at least part LNG vaporization.In addition, the present invention also connects with first order compression unit
Second heat exchanger is set in logical air input passage so that LNG is exchanged heat to reduce the temperature of input air with input air
Degree.The LNG gas turbines of the present invention absorb the heat energy of compressed air between the input air and level of compressor using LNG as low-temperature receiver,
Reclaiming the heat energy of air is used to vaporize LNG, while reducing air themperature.The energy that LNG contains in itself is taken full advantage of, reduction is changed
The volume of hot equipment, improves heat exchange efficiency, increases capacity usage ratio, the effect of gas turbine is improved with a kind of better way
Rate, reduces pollutant emission, saves use cost.
Concepts described herein may be embodied to other forms in the case of without departing from its spirit and characteristic.It is disclosed
Specific embodiment should be considered as exemplary rather than restricted.Therefore, the scope of the present invention be by appended claim,
Rather than be determined according to these descriptions before.Any change in the letter and equivalency range of claim is all
The scope of these claims should be belonged to.
Claims (6)
1. a kind of LNG gas turbines with cascade EDFA, including combustion chamber, turbine and compressor, the compressor with it is described
Combustion chamber is used to provide compressed air to the combustion chamber, and the turbine is with the combustion chamber to receive the combustion
Burn the combustion gas working medium of room output, the compressor and the turbine drive connection, the compressor include prime compression impellor, after
Level compression impellor and the compressed air channel being communicated between the prime compression impellor and rear class compression impellor, the combustion gas
Turbine also includes the natural gas transportation passage that natural gas is conveyed to the combustion chamber, it is characterised in that the compressor also includes
First Heat Exchanger, the LNG that the First Heat Exchanger is constructed and is connected in the natural gas transportation passage and the compression
The temperature that compressed air in air duct is exchanged heat to reduce the compressed air is while at least partly described LNG vaporization.
2. there is the LNG gas turbines of cascade EDFA as claimed in claim 1, it is characterised in that the compressor includes sky
Gas input channel and the second heat exchanger, the air input passage connect to calm the anger to the prime with the prime compression impellor
Impeller input environment air, second heat exchanger construction and the LNG being connected in the natural gas transportation passage and institute
The input air in air input passage is stated to be exchanged heat to reduce the temperature of the input air at least partly LNG simultaneously
Vaporization, in the flow direction of the natural gas transportation passage, second heat exchanger is located at the First Heat Exchanger upstream.
3. there is the LNG gas turbines of cascade EDFA as claimed in claim 1, it is characterised in that the natural gas transportation is led to
Road one end connects a LNG delivery pumps, and the other end is communicated to the combustion chamber, and the LNG delivery pumps are to defeated to the natural gas
Passage is sent to input LNG.
4. a kind of LNG gas turbines with cascade EDFA, including combustion chamber, turbine and compressor, the compressor with it is described
Combustion chamber is used to provide compressed air to the combustion chamber, and the turbine is with the combustion chamber to receive the combustion
The combustion gas working medium of room output, the compressor and the turbine drive connection are burnt, the compressor includes some grades of compression units,
Compressed air channel is communicated between compression unit per two-stage neighboring, the gas turbine also includes conveying to the combustion chamber
The natural gas transportation passage of natural gas, it is characterised in that the compressor also includes some First Heat Exchangers, each of which first
Heat exchanger is corresponding with a wherein compressed air channel, and at least one of which First Heat Exchanger is constructed and is connected to described natural
LNG in gas transfer passage is exchanged heat empty to reduce the compression with the compressed air in the corresponding compressed air channel
The temperature of gas is while at least partly described LNG vaporization.
5. there is the LNG gas turbines of cascade EDFA as claimed in claim 4, it is characterised in that the compressor includes sky
Gas input channel and the second heat exchanger, the air input passage and the first order compression unit of some grades of compression units connect
Pass to the first order compression unit input environment air, second heat exchanger construction and be connected to the natural gas
LNG in transfer passage is exchanged heat to reduce the temperature of the input air with the input air in the air input passage
While at least partly described LNG vaporization, in the flow direction of the natural gas transportation passage, second heat exchanger is located at any one
The upstream of the individual First Heat Exchanger.
6. there is the LNG gas turbines of cascade EDFA as claimed in claim 4, it is characterised in that the natural gas transportation is led to
Road one end connects a LNG delivery pumps, and the other end is communicated to the combustion chamber, and the LNG delivery pumps are to defeated to the natural gas
Passage is sent to pump the LNG.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621467322.8U CN206319962U (en) | 2016-12-29 | 2016-12-29 | LNG gas turbines with cascade EDFA |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621467322.8U CN206319962U (en) | 2016-12-29 | 2016-12-29 | LNG gas turbines with cascade EDFA |
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| Publication Number | Publication Date |
|---|---|
| CN206319962U true CN206319962U (en) | 2017-07-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201621467322.8U Active CN206319962U (en) | 2016-12-29 | 2016-12-29 | LNG gas turbines with cascade EDFA |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106499519A (en) * | 2016-12-29 | 2017-03-15 | 深圳智慧能源技术有限公司 | There is the LNG gas turbines of interstage cooling |
| WO2018119921A1 (en) * | 2016-12-29 | 2018-07-05 | 深圳智慧能源技术有限公司 | Lng gas turbine with inter-stage cooling |
-
2016
- 2016-12-29 CN CN201621467322.8U patent/CN206319962U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106499519A (en) * | 2016-12-29 | 2017-03-15 | 深圳智慧能源技术有限公司 | There is the LNG gas turbines of interstage cooling |
| WO2018119921A1 (en) * | 2016-12-29 | 2018-07-05 | 深圳智慧能源技术有限公司 | Lng gas turbine with inter-stage cooling |
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