CN204716402U - Gas turbine exhaust gas utilizes system - Google Patents
Gas turbine exhaust gas utilizes system Download PDFInfo
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- CN204716402U CN204716402U CN201520437886.6U CN201520437886U CN204716402U CN 204716402 U CN204716402 U CN 204716402U CN 201520437886 U CN201520437886 U CN 201520437886U CN 204716402 U CN204716402 U CN 204716402U
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- gas
- exhaust gas
- turbine exhaust
- preheating chamber
- gas turbine
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Abstract
The utility model provides a kind of gas turbine exhaust gas to utilize system, and it comprises caisson, firing chamber, venting gas appliance, wherein, also comprises: preheating chamber, on the gas channel between described caisson, firing chamber; Exhaust gas channel is provided with between described venting gas appliance and described preheating chamber, so that the Some gases wheel tail gas in described venting gas appliance is delivered to described preheating chamber, described preheating chamber for making gas turbine exhaust gas, enter combustion gas generation heat exchange before described firing chamber, with preheated fuel gas.The utility model proposes one and utilize tail gas pre-heating fuel, reduce the mode that ignition energy consumes, except improving integrated heat efficiency further, also there is the advantages such as structure is simple, reforming cost is low, applicable engineer applied.
Description
Technical field
The utility model relates to distributed energy resource system, Gas Turbine Combined-cycle system regions, utilizes system in particular to utilizing the gas turbine exhaust gas of gas turbine exhaust gas waste heat fuel.
Background technique
Gas turbine (Gas Turbine) is a kind of rotary power machinery being mechanical work using the gas of continuous-flow as working medium, thermal power transfer.In the main flow of air and combustion gas, only have the gas turbine cycle of this three large parts composition of gas compressor (Compressor), firing chamber (Combustor) and combustion gas turbine (Turbine), be commonly referred to as simple cycle.
Most of gas turbine all adopts simple cycle scheme.Gas compressor sucks air from ambient atmosphere environment, and compresses step by step through axial-flow compressor and make it supercharging, simultaneously air temperature also corresponding raising; Pressurized air is pressed to firing chamber and burns with the fuel mix that sprays into and generate the combustion gas of High Temperature High Pressure; And then enter into turbine expansion work, promote turbine and drive gas compressor High Rotation Speed together with outer load rotor, the chemical energy achieving gas or liquid fuel is partially converted into mechanical work, and exports electric work.The waste gas of discharging from turbine drains into the heat release of air nature.
Improving integrated heat efficiency is the target constantly pursued in distributed energy resource system design, to meet the requirement of modern power system design to indexs such as high energy efficiency, low emission, economizing economies.In conventional gas turbine distributed energy resource system, high-temperature fuel gas is after each link of combined cycle, and tail gas directly enters atmosphere environment, and the low grade heat energy now still contained in tail gas compared with horn of plenty, be not utilized effectively, not only waste energy, and affect environment.
Summary of the invention
The purpose of this utility model is to provide a kind of gas turbine exhaust gas to utilize system, is directly thrown into solve current gas turbine low grade heat energy tail gas the energy waste problem caused in air.
In order to solve the problem, the utility model provides a kind of gas turbine exhaust gas to utilize system, as follows:
A kind of gas turbine exhaust gas utilizes system, comprises caisson, firing chamber, venting gas appliance, wherein, also comprises: preheating chamber, on the gas channel between described caisson, firing chamber; Exhaust gas channel is provided with between described venting gas appliance and described preheating chamber, so that the gas turbine exhaust gas in described venting gas appliance is delivered to described preheating chamber, described preheating chamber for making gas turbine exhaust gas, enter combustion gas generation heat exchange before described firing chamber, with preheated fuel gas.
Preferably, utilize in system at above-mentioned gas turbine exhaust gas, also comprise: state monitoring apparatus, be located on the gas channel between described preheating chamber, firing chamber, to monitor the state of the combustion gas through preheating.
Preferably, utilize in system at above-mentioned gas turbine exhaust gas, described state monitoring apparatus is at least be provided with thermometer, barometrical gaseous state monitoring valve, at least to monitor temperature, the pressure of the combustion gas through preheating.
Preferably, utilize in system at above-mentioned gas turbine exhaust gas, also comprise: control gear, be connected with described state monitoring apparatus, be positioned on described exhaust gas channel, for the combustion gas status data of monitoring according to described state monitoring apparatus, control the exhaust flow passed through in described exhaust gas channel.
Preferably, utilize in system at above-mentioned gas turbine exhaust gas, described caisson is gas holder.
Analyzing known, for utilizing gas turbine waste heat, improving integrated heat efficiency, the utility model proposes one and utilize tail gas pre-heating fuel, reducing the mode that ignition energy consumes, except improving integrated heat efficiency further, also there is the advantages such as structure is simple, reforming cost is low, applicable engineer applied.
Accompanying drawing explanation
Fig. 1 is the theory structure schematic diagram of the utility model embodiment.
In figure, 1-gas holder; 2-preheating chamber; 3-firing chamber; 4-combined cycle system; 5-venting gas appliance; 6-control gear; 7-state monitoring apparatus; 8-exhaust gas channel.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in further details.
As shown in Figure 1, the utility model embodiment comprises as the gas holder 1 of gas turbine caisson, firing chamber 3, combined cycle system 4, venting gas appliance 5, and preheating chamber 2, state monitoring apparatus 7, control gear 6.
In order to realize using waste heat from tail gas recycling, the utility model embodiment is provided with preheating chamber 2 in the embody rule of gas turbine, as shown in Figure 1, on its gas channel between gas holder 1, firing chamber 3.Be provided with exhaust gas channel 8 between venting gas appliance 5 and preheating chamber 2, so that the part or all of gas turbine exhaust gas in venting gas appliance 5 is delivered to preheating chamber 2, preheating chamber 2 makes gas turbine exhaust gas, enter combustion gas generation heat exchange before firing chamber 3, with preheated fuel gas.Particularly, arrange preheating chamber 2 fuel can be made to be heated after flammable plastid more evenly or easier homogenization, be beneficial to the tissue of combustion process; The requirement to ignition system and cost can be reduced simultaneously.In other words, preheating chamber 2 is a heat-exchange device, and its principle is to introduce tail gas, heats the fuel body (combustion gas from gas holder 1) that inside is passed through.Specific implementation structure is comparatively various, no longer specifically limits, such as, and the structure of the heat exchanger in existing engineering, cooling unit etc.Apart from upper, preferably more recently, it does not have direct or indirect associating with gas holder 1 for preheating chamber 2 and firing chamber 3, because more far away apart from gas holder 1 better as the preheating chamber 2 of heat source thermo.。
Specifically, the combustion gas that firing chamber 3 produces is delivered to combined cycle system 4 by the utility model, the tail gas formed after being done work by combined cycle system 4 enters into venting gas appliance 5, and then causes preheating chamber 28 times by exhaust gas channel, fully reuses like this to tail gas.
In order to obtain the gaseous state data such as temperature, pressure of combustion gas after preheating in time, the present embodiment comprises state monitoring apparatus 7, can for which is provided with thermometer, manometric gaseous state monitoring valve, and be located on the gas channel between preheating chamber 2, firing chamber 3, with the state of monitoring through the combustion gas of preheating, and be easy to change, install.
In other embodiments, in the outlet port of preheating chamber 2, the instrument such as detected temperatures, pressure is set, so, by detecting the state of combustion gas in real time, combustion gas can be prevented excessively to be heated, according to the threshold value arranged, and to be regulated the amount of backflow vent by control gear 6, control the interval of fuel heating, ensure safety.Meanwhile, fuel can not excessive heat, in case ignite voluntarily before entering firing chamber 3.
In order to improve the security of operation level of the present embodiment, the present embodiment comprises control gear 6, and itself and state monitoring apparatus 7 communicate to connect, and is positioned on exhaust gas channel 8, for the combustion gas status data of monitoring according to state monitoring apparatus 7, control the exhaust flow passed through in exhaust gas channel 8.Control gear 6 can comprise the conventional air regulating device in the related domain such as valve, flashboard; Or further, in order to improve automatization level, control gear 6 can also comprise driving mechanism etc.
Overview, the effect of control gear 6 is the status data according to combustion gas, by adjustment exhaust circulation valve opening, adjustment exhaust through-current capacity, thus in safety range, adjustment fuel degree of heat.The data transmission of control gear 6, the part such as to compare and can install concentratedly in gas turbine and control rack, valve etc. are directly installed on exhaust gas channel 8.
Before control gear 6 is applied, should pre-set the safety range of the status parameter after fuel heating, when monitor data exceeds safety range, control gear 6 sends start instruction, valve is turned down and even closes, and stops heating.Wherein, the action turning down or open large valve can control according to the speed size of Parameters variation, how should set according to concrete control logic.
When the present embodiment runs, combustion gas is flowed out from gas holder 1 and is entered preheating chamber 2.Gas turbine exhaust gas automatic exhauster 5 is introduced preheating chamber 2 by gas channel 8, to the gaseous fuel heating in preheating chamber 2, after making its supercharging, intensification, burns through condition monitoring control valve unit 7 flowing in combustion chamber 3.According to state monitoring apparatus 7 feedack, control gear 6 regulates tail gas to flow into the flow of preheating chamber 2, prevents fuel superheater, ensures system safety operation.The hot fluid spontaneous combustion room 3 completing combustion process is flowed out, and through combined cycle or the acting of combined cycle system 4, forms tail gas, and via venting gas appliance 5, flows into preheating chamber 2, enters next circulation.
The fuel gas of gas turbine, after preheating, can reduce the consumption to ignition energy, thus saves ignition system from power consumption, reduces the requirement to ignition system declared working condition, the relative prolongation ignition system life-span, increases the redundancy of ignition system reliability.Visible, the utility model can improve integrated heat efficiency further, and structure is simple, implementation cost is low.
As known by the technical knowledge, the utility model can be realized by other the embodiment not departing from its Spirit Essence or essential feature.Therefore, above-mentioned disclosed embodiment, with regard to each side, all just illustrates, is not only.Allly all to be included in the utility model within the scope of the utility model or being equal to the change in scope of the present utility model.
Claims (5)
1. gas turbine exhaust gas utilizes a system, comprises caisson, firing chamber, venting gas appliance, it is characterized in that, also comprise:
Preheating chamber, on the gas channel between described caisson, firing chamber;
Exhaust gas channel is provided with between described venting gas appliance and described preheating chamber, so that the gas turbine exhaust gas in described venting gas appliance is delivered to described preheating chamber, described preheating chamber for making gas turbine exhaust gas, enter combustion gas generation heat exchange before described firing chamber, with preheated fuel gas.
2. gas turbine exhaust gas according to claim 1 utilizes system, it is characterized in that, also comprises:
State monitoring apparatus, is located on the gas channel between described preheating chamber, firing chamber, to monitor the state of the combustion gas through preheating.
3. gas turbine exhaust gas according to claim 2 utilizes system, it is characterized in that, described state monitoring apparatus is at least be provided with thermometer, barometrical gaseous state monitoring valve, at least to monitor temperature, the pressure of the combustion gas through preheating.
4. gas turbine exhaust gas according to claim 2 utilizes system, it is characterized in that, also comprises:
Control gear, is connected with described state monitoring apparatus, is positioned on described exhaust gas channel, for the combustion gas status data of monitoring according to described state monitoring apparatus, controls the exhaust flow passed through in described exhaust gas channel.
5. gas turbine exhaust gas according to claim 1 utilizes system, it is characterized in that, described caisson is gas holder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520437886.6U CN204716402U (en) | 2015-06-24 | 2015-06-24 | Gas turbine exhaust gas utilizes system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520437886.6U CN204716402U (en) | 2015-06-24 | 2015-06-24 | Gas turbine exhaust gas utilizes system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204716402U true CN204716402U (en) | 2015-10-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520437886.6U Expired - Fee Related CN204716402U (en) | 2015-06-24 | 2015-06-24 | Gas turbine exhaust gas utilizes system |
Country Status (1)
| Country | Link |
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| CN (1) | CN204716402U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104929780A (en) * | 2015-06-24 | 2015-09-23 | 中国能建集团装备有限公司北京技术中心 | Gas turbine tail gas utilization system |
| CN107869391A (en) * | 2016-09-23 | 2018-04-03 | 熵零技术逻辑工程院集团股份有限公司 | A kind of zero-emission thermo-motor |
-
2015
- 2015-06-24 CN CN201520437886.6U patent/CN204716402U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104929780A (en) * | 2015-06-24 | 2015-09-23 | 中国能建集团装备有限公司北京技术中心 | Gas turbine tail gas utilization system |
| CN107869391A (en) * | 2016-09-23 | 2018-04-03 | 熵零技术逻辑工程院集团股份有限公司 | A kind of zero-emission thermo-motor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20160912 Address after: 100044 Beijing Haidian District Xizhimen North Shimonoseki Land Temple 32 Patentee after: Beijing Electric Power Automatic Equipment Co., Ltd. Address before: 100044 Beijing city Haidian District four crossing the road Land Temple 32 building three layer 11 Patentee before: Beijing Technical Center of China Energy Engineering Group Equipment Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151021 Termination date: 20190624 |
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| CF01 | Termination of patent right due to non-payment of annual fee |