CN215256480U - System for improving efficiency of gas turbine and reducing NOx - Google Patents
System for improving efficiency of gas turbine and reducing NOx Download PDFInfo
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- CN215256480U CN215256480U CN202121033748.3U CN202121033748U CN215256480U CN 215256480 U CN215256480 U CN 215256480U CN 202121033748 U CN202121033748 U CN 202121033748U CN 215256480 U CN215256480 U CN 215256480U
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Abstract
The utility model discloses a system for improving the efficiency of a gas turbine and reducing NOx, which comprises a combustion unit and a control unit, wherein the combustion unit comprises a gas compressor, a combustion chamber connected with the gas compressor, a turbine connected with the combustion chamber and a heat exchanger connected with the combustion chamber through a first pipeline; the control unit is connected with the combustion unit and comprises a second pipeline and a first valve arranged on the second pipeline. The system of the utility model avoids the natural gas at the inlet of the feed-water heating combustion chamber, and saves water resources; the temperature of air at the inlet of the air compressor can be increased in cold weather, and the resistance of air filtration at the inlet of the air compressor is reduced due to high ambient humidity; simultaneously heating natural gas at the inlet of the combustion chamber to increase the temperature of the natural gas; the combustion efficiency is effectively improved, NOx is reduced, the combustion stability of the gas turbine is improved, and the safe operation of equipment is guaranteed.
Description
Technical Field
The utility model relates to a gas turbine technical field, especially a system for improve gas turbine efficiency and fall NOx.
Background
In the early stage of the 21 st century, China starts to tie and bid gas turbines and enters the domestic market, with the development of scientific technology, the efficiency of the original gas turbines is reduced along with the deterioration, and meanwhile, the NOx emission cannot meet the existing environmental protection standard. When the existing gas turbine runs, natural gas in front of a combustion chamber is heated by adopting water supply; the inlet air of the compressor is directly heated by the outlet air of the compressor or an electric heater with larger power consumption; the combustion engine has the defects of low efficiency, high NOx emission and the like.
SUMMERY OF THE UTILITY MODEL
This section is for the purpose of summarizing some aspects of embodiments of the invention and to briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and in the abstract of the specification and the title of the application to avoid obscuring the purpose of this section, the abstract of the specification and the title of the application, and such simplifications or omissions are not intended to limit the scope of the invention.
The present invention has been made in view of the above and/or other problems with existing systems for increasing the efficiency and reducing NOx of combustion engines.
Therefore, the problem to be solved by the present invention is to provide a system for improving the efficiency of a combustion engine and reducing NOx.
In order to solve the technical problem, the utility model provides a following technical scheme: a system for improving the efficiency and reducing NOx of a gas turbine comprises a combustion unit and a control unit, wherein the combustion unit comprises a gas compressor, a combustion chamber connected with the gas compressor, a turbine connected with the combustion chamber and a heat exchanger connected with the combustion chamber through a first pipeline; the control unit is connected with the combustion unit and comprises a second pipeline and a first valve arranged on the second pipeline.
As an optimized solution of the system for improving the efficiency of a combustion engine and reducing NOx, wherein: the heat exchanger is also internally provided with a special fuel gas pipeline which is connected with the first pipeline.
As an optimized solution of the system for improving the efficiency of a combustion engine and reducing NOx, wherein: and an air special pipeline is also arranged in the heat exchanger and is connected with the control unit.
As an optimized solution of the system for improving the efficiency of a combustion engine and reducing NOx, wherein: the control unit further includes a second valve disposed on the second conduit.
As an optimized solution of the system for improving the efficiency of a combustion engine and reducing NOx, wherein: the control unit sets up a plurality ofly, all is connected with the combustion unit.
As an optimized solution of the system for improving the efficiency of a combustion engine and reducing NOx, wherein: the first control unit is connected between the compressor and the heat exchanger.
As an optimized solution of the system for improving the efficiency of a combustion engine and reducing NOx, wherein: the combustion unit further comprises an air compressor air inlet filter chamber, the second control unit further comprises a nozzle arranged below the air compressor air inlet filter chamber, and the control unit is connected between the heat exchanger and the air compressor air inlet filter chamber.
As an optimized solution of the system for improving the efficiency of a combustion engine and reducing NOx, wherein: and one end of the third control unit is only connected to the heat exchanger, and the other end of the third control unit is communicated with the atmosphere.
As an optimized solution of the system for improving the efficiency of a combustion engine and reducing NOx, wherein: the first valve adopts a manual valve.
As an optimized solution of the system for improving the efficiency of a combustion engine and reducing NOx, wherein: the second valve adopts an electric valve.
The utility model has the advantages that the system avoids the natural gas at the inlet of the water-feeding heating combustion chamber, and saves water resources; the temperature of air at the inlet of the air compressor can be increased in cold weather, and the resistance of air filtration at the inlet of the air compressor is reduced due to high ambient humidity; simultaneously heating natural gas at the inlet of the combustion chamber to increase the temperature of the natural gas; the combustion efficiency is effectively improved, NOx is reduced, the combustion stability of the gas turbine is improved, and the safe operation of equipment is guaranteed.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without inventive labor. Wherein:
FIG. 1 is a flow chart of the operation of the system for increasing the efficiency and reducing NOx of an internal combustion engine of example 1.
FIG. 2 is a flow chart of the operation of the system for increasing the efficiency and reducing NOx of the combustion engine of example 2.
FIG. 3 is a flowchart of the operation of the system for increasing the efficiency and reducing NOx of the combustion engine of example 3.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention more comprehensible, embodiments accompanying the present invention are described in detail below with reference to the accompanying drawings.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be implemented in other ways different from the specific details set forth herein, and one skilled in the art may similarly generalize the present invention without departing from the spirit of the present invention, and therefore the present invention is not limited to the specific embodiments disclosed below.
Furthermore, the references herein to "one embodiment" or "an embodiment" refer to a particular feature, structure, or characteristic that may be included in at least one implementation of the invention. The appearances of the phrase "in one embodiment" in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments.
Example 1
Referring to fig. 1, a first embodiment of the present invention provides a system for improving efficiency and reducing NOx of a combustion engine, the system for improving efficiency and reducing NOx of a combustion engine comprises a combustion unit 100 and a control unit 200, the combustion unit 100 comprises a compressor 101, a combustion chamber 102 connected to the compressor 101, a turbine 103 connected to the combustion chamber 102, and a heat exchanger 105 connected to the combustion chamber 102 through a first pipe 104; the control unit 200, which is connected to the combustion unit 100, includes a second pipe 201 and a first valve 202 disposed on the second pipe 201.
When the system is used, part of high-temperature air extracted from the compressor 101 sequentially passes through the second pipeline 201 and the first valve 202 and enters the heat exchanger 105, natural gas in the heat exchanger 105 is preheated, the preheated natural gas enters the combustion chamber 102 from the heat exchanger 105 through the first pipeline 104, the natural gas in the combustion chamber 102 is combusted with the high-temperature air at the outlet of the compressor 101, and the combusted flue gas enters the turbine 103 to do work, so that the natural gas is fully combusted, the combustion period of the natural gas is shortened, the combustion efficiency is improved, and the combustion stability of a combustion engine is improved.
Example 2
Referring to fig. 2, a second embodiment of the present invention provides a system for increasing the efficiency and reducing NOx of a combustion engine, which is different from the first embodiment: the combustion unit 100 further includes a compressor air intake filter chamber 106, the second control unit 200 further includes a nozzle 204, a dedicated fuel gas pipeline M1 is further disposed inside the heat exchanger 105, and a dedicated air pipeline M2 is further disposed inside the heat exchanger 105.
Specifically, the control units 200 are provided in plurality, and are all connected to the combustion unit 100 to correspondingly control the natural gas in different combustion environments.
Further, a first control unit 200 is connected between the compressor 101 and the heat exchanger 105, so that the air in the compressor 101 enters the heat exchanger 105 through the control unit 200.
Preferably, the combustion unit 100 further includes a compressor air intake filter chamber 106, the second control unit 200 further includes a nozzle 204 disposed below the compressor air intake filter chamber 106, the control unit 200 is connected between the heat exchanger 105 and the compressor air intake filter chamber 106, when the ambient humidity is high or the weather is cold, the control unit 200 heats the air in the compressor air intake filter chamber 106, and the nozzle 204 is disposed to increase the heating area with the compressor air intake filter chamber 106.
Preferably, a special fuel gas pipeline M1 is further disposed inside the heat exchanger 105, and is connected to the first pipeline 104, so as to avoid the danger of mixing the air and the natural gas inside the heat exchanger 105.
Preferably, an air dedicated pipeline M2 is further disposed inside the heat exchanger 105, and is connected to the control unit 200, so as to prevent the danger of mixing the air in the heat exchanger 105 with the natural gas, and to prevent the natural gas from leaking when the air in the heat exchanger 105 is discharged.
When the system is used under the condition of high ambient humidity or cold weather, part of high-temperature air extracted from the compressor 101 passes through the second pipeline 201 and the first valve 202 of the first control unit 200 in sequence and enters the heat exchanger 105, part of the high-temperature air passes through the special air pipeline M2 and the second pipeline 201, the first valve 202 and the nozzle 204 of the second control unit 200 in sequence and heats the air in the compressor air inlet filter chamber 106, the air temperature in the compressor 101 is increased, the natural gas in the special gas pipeline M1 of the heat exchanger 105 is continuously preheated by the high-temperature air in the heat exchanger 105, the preheated natural gas enters the combustion chamber 102 from the special gas pipeline M1 through the first pipeline 104, and the natural gas in the combustion chamber 102 is combusted with the high-temperature air at the outlet of the compressor 101, the combusted flue gas enters the turbine 103 to do work, so that the natural gas is fully combusted, the combustion period of the natural gas is shortened, the combustion efficiency is improved, and the combustion stability of the gas turbine is improved.
Example 3
Referring to fig. 3, a third embodiment of the present invention provides a system for increasing the efficiency and reducing NOx of a combustion engine, which is different from the first two embodiments: the control unit 200 further comprises a second valve 203.
Specifically, the control unit 200 further includes a second valve 203 disposed on the second pipe 201, and the second valve 203 is configured to mainly perform a shut-off function.
Furthermore, one end of the third control unit 200 is connected to the heat exchanger 105 only, and the other end is communicated with the atmosphere, so that the air in the heat exchanger 105 can be directly discharged into the atmosphere through the control unit 200 when the ambient temperature is high.
Preferably, the first valve 202 is a manual valve, and is configured to perform a system isolation function during equipment maintenance.
Preferably, the second valve 203 is an electrically operated valve, and is configured to be opened and closed remotely when the unit is in operation, so as to control the medium flowing through the pipeline.
When the system is used under the condition of higher ambient temperature, the air extracted from the compressor 101 and partially cooled enters the air dedicated pipeline M2 of the heat exchanger 105 through the second pipeline 201, the first valve 202 and the second valve 203 of the first control unit 200 in sequence, the natural gas in the special gas pipeline M1 of the heat exchanger 105 is cooled to avoid danger caused by over-high temperature of the natural gas, the cooled natural gas enters the combustion chamber 102 from the special gas pipeline M1 through the first pipeline 104, the natural gas in the combustion chamber 102 is combusted with high-temperature air at the outlet of the compressor 101, and the combusted flue gas enters the turbine 103 to do work, so that the natural gas is fully combusted, the combustion period of the natural gas is shortened, the combustion efficiency is improved, and the combustion stability of the gas turbine is improved; closing the first valve 202 and the second valve 203 of the second control unit 200, preventing the air in the compressor air inlet filter chamber 106 from being reduced by the reduced temperature air, reducing the combustion abundance of natural gas, and discharging the reduced temperature air into the atmosphere through the second pipeline 201, the first valve 202 and the second valve 203 of the third control unit 200.
It should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention can be modified or replaced with equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should be covered by the scope of the claims of the present invention.
Claims (10)
1. A system for increasing the efficiency and reducing NOx of a combustion engine, comprising: comprises the steps of (a) preparing a mixture of a plurality of raw materials,
a combustion unit (100) comprising a compressor (101), a combustion chamber (102) connected to the compressor (101), a turbine (103) connected to the combustion chamber (102), and a heat exchanger (105) connected to the combustion chamber (102) by a first duct (104); and the number of the first and second groups,
the control unit (200) is connected with the combustion unit (100) and comprises a second pipeline (201) and a first valve (202) arranged on the second pipeline (201).
2. The system for increasing the efficiency and reducing NOx of a combustion engine as set forth in claim 1, wherein: the heat exchanger (105) is also internally provided with a special fuel gas pipeline (M1) which is connected with the first pipeline (104).
3. A system for increasing the efficiency and reducing NOx of a combustion engine as set forth in claim 1 or 2, wherein: an air special pipeline (M2) is further arranged inside the heat exchanger (105) and is connected with the control unit (200).
4. A system for increasing the efficiency and reducing NOx of a combustion engine as set forth in claim 3, wherein: the control unit (200) further comprises a second valve (203) arranged on the second conduit (201).
5. A system for increasing the efficiency and reducing NOx in a combustion engine as set forth in any one of claims 1, 2 or 4, wherein: the control units (200) are arranged in a plurality and are connected with the combustion unit (100).
6. The system for increasing the efficiency and reducing NOx of a combustion engine as set forth in claim 5, wherein: a first of said control units (200) is connected between said compressor (101) and said heat exchanger (105).
7. A system for increasing the efficiency and reducing NOx of a combustion engine as set forth in any one of claims 1, 2, 4 or 6, wherein: the combustion unit (100) further comprises a compressor air inlet filter chamber (106), the second control unit (200) further comprises a nozzle (204) arranged below the compressor air inlet filter chamber (106), and the control unit (200) is connected between the heat exchanger (105) and the compressor air inlet filter chamber (106).
8. A system for increasing the efficiency and reducing NOx of a combustion engine as set forth in any one of claims 1, 2, 4 or 6, wherein: one end of the third control unit (200) is only connected to the heat exchanger (105), and the other end of the third control unit is communicated with the atmosphere.
9. The system for increasing the efficiency and reducing NOx of a combustion engine as set forth in claim 1, wherein: the first valve (202) is a manual valve.
10. The system for increasing the efficiency and reducing NOx of a combustion engine as set forth in claim 4, wherein: the second valve (203) adopts an electric valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121033748.3U CN215256480U (en) | 2021-05-14 | 2021-05-14 | System for improving efficiency of gas turbine and reducing NOx |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121033748.3U CN215256480U (en) | 2021-05-14 | 2021-05-14 | System for improving efficiency of gas turbine and reducing NOx |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215256480U true CN215256480U (en) | 2021-12-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121033748.3U Active CN215256480U (en) | 2021-05-14 | 2021-05-14 | System for improving efficiency of gas turbine and reducing NOx |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215256480U (en) |
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2021
- 2021-05-14 CN CN202121033748.3U patent/CN215256480U/en active Active
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