Tail gas and exhaust smoke recycling system of aero-retrofit gas turbine

Abstract

The utility model provides an aero-reform gas turbine exhaust smoke recycling system which comprises a water inlet reservoir, a reservoir and a water using assembly which are sequentially communicated through pipelines to form a loop, a one-way valve is assembled in any pipeline, the pipeline between the water inlet reservoir and the reservoir is arranged in a flue inner heat exchange system, and the water using assembly is arranged in the flue inner heat exchange system. The water using assembly comprises a gas turbine air inlet anti-icing coil pipe, a winter heating water using assembly and a domestic water using assembly which are arranged in parallel. Winter heating hot water and daily life cold / hot water are prepared for a factory / park by utilizing tail gas waste heat, meanwhile, heating medium water can be provided for a gas turbine air inlet anti-icing circulation system in extreme weather, and it is guaranteed that a gas turbine generator set stably operates under the working condition in winter; according to the system, after the gas turbine generator set is used in a combined cycle mode, low-order energy is further utilized for heat supply, the utilization rate of the low-order energy is increased, and good economic benefits and social benefits are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of energy utilization, and in particular to an aero-derivative combustion engine tail gas exhaust recycling system. Background Art

[0002] Aero-derivative gas turbines are modified aircraft jet engines and equipped with power turbines to make their speed and power meet the needs of land power generation or mechanical traction. In the existing technology, the flue gas emitted by aero-derivative gas turbine generator sets can reach 80-100℃. If it is directly discharged into the atmosphere, it is not conducive to energy conservation and emission reduction.

[0003] Therefore, the inventors believe that it is necessary to provide an aero-derivative gas turbine exhaust gas recycling system to further recycle the flue gas discharged into the atmosphere, and after combined cycle use, further utilize low-level energy for heating, thereby improving the utilization rate of low-level energy and expanding the scope of tiered utilization of high-quality energy. Utility Model Content

[0004] In view of the defects in the prior art, the purpose of the utility model is to provide an aero-derivative gas turbine exhaust gas recycling system.

[0005] According to the utility model, an aero-derivative gas turbine exhaust gas recycling system is provided, comprising a water inlet reservoir, a water reservoir and a water use component which are sequentially connected through pipelines to form a loop, and a one-way valve is installed in any pipeline. The pipeline between the water inlet reservoir and the water reservoir is arranged inside the heat exchange system in the flue, and the water use component comprises a gas turbine air intake anti-icing coil, a winter heating water component and a domestic water component which are arranged in parallel.

[0006] Preferably, the flue heat exchange system is provided with a waste heat boiler exhaust air inlet and a waste heat boiler exhaust air outlet, the flow direction of the pipe inside the flue heat exchange system is from the waste heat boiler exhaust air inlet to the waste heat boiler exhaust air outlet, and the pipe is arranged in an S shape.

[0007] Preferably, a first one-way valve, a first pump group and a pressure regulating valve are sequentially arranged on the pipeline between the water inlet reservoir and the heat exchange system in the flue, an output end of the pressure regulating valve is connected to the water inlet reservoir to form a loop, and a water inlet is arranged on the water inlet reservoir.

[0008] Preferably, the water storage capacity of the water inlet reservoir is greater than the water storage capacity of the water reservoir.

[0009] Preferably, a second one-way valve and a second pump group are sequentially arranged on the pipeline between the water reservoir and the water-using component.

[0010] Preferably, a first pressure and temperature regulating valve group is provided on the pipeline between the water reservoir and the gas turbine air intake anti-icing coil, and an output end of the first pressure and temperature regulating valve group is connected to the water reservoir to form a loop.

[0011] Preferably, a second pressure and temperature regulating valve group is provided on the pipeline between the water storage tank and the winter heating water component.

[0012] Preferably, a remote control valve group is provided on the pipeline between the water reservoir and the domestic water component.

[0013] Preferably, the pipelines are all made of stainless steel, and any pipeline is equipped with a power device and a pipeline filter.

[0014] Preferably, the water inlet reservoir and the water reservoir are both installed with a liquid level gauge, a safety valve, a discharge valve and temperature and pressure measuring elements.

[0015] Compared with the prior art, the utility model has the following beneficial effects:

[0016] The utility model further recycles the flue gas discharged into the atmosphere after subjecting the exhaust waste heat of the aero-derivative gas turbine generator set to a heat exchange cycle; utilizes the flue gas at about 80-100°C to prepare winter heating hot water and cold / hot water for daily life for the factory / park area, and at the same time, in extreme weather, can provide heat medium water for the gas turbine intake anti-icing circulation system to ensure the stable operation of the gas turbine generator set under winter conditions; after the gas turbine generator set is used through a combined cycle, the system further utilizes low-level energy for heating, thereby improving the utilization rate of low-level energy and expanding the scope of cascade utilization of high-quality energy. The comprehensive utilization rate of the energy of the entire system can reach more than 90%, with good economic and social benefits. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Other features, objects and advantages of the present invention will become more apparent by reading the detailed description of non-limiting embodiments with reference to the following drawings:

[0018] Figure 1 The utility model mainly embodies the structural schematic diagram of the aeroderivative gas turbine exhaust gas recycling system.

[0019] Reference numerals:

[0020] Water inlet reservoir 1 Water inlet 2

[0021] First check valve 3 First pump group 4

[0022] Pressure regulating valve 5 Water reservoir 6

[0023] Second check valve 7 Second pump group 8

[0024] First pressure temperature regulating valve group 9 Remote control valve group 10

[0025] Second pressure and temperature regulating valve group 11 Gas turbine air intake anti-icing coil 12

[0026] Winter heating water component 13 Domestic water component 14

[0027] Waste heat boiler exhaust air inlet 15 Waste heat boiler exhaust air outlet 16 DETAILED DESCRIPTION

[0028] The utility model is described in detail below in conjunction with specific embodiments. The following embodiments will help those skilled in the art to further understand the utility model, but do not limit the utility model in any form. It should be pointed out that for those of ordinary skill in the art, several changes and improvements can be made without departing from the concept of the utility model. These all belong to the protection scope of the utility model.

[0029] like Figure 1 As shown, an aero-derivative combustion engine tail gas exhaust recycling system provided by the utility model includes a water inlet reservoir 1, a reservoir 6 and a water use component which are sequentially connected through a pipeline to form a loop, and a one-way valve is installed in any pipeline. The pipeline between the water inlet reservoir 1 and the reservoir 6 is arranged inside the heat exchange system in the flue, and the water use component includes but is not limited to a combustion engine intake anti-icing coil 12 arranged in parallel, a winter heating water component 13 and a domestic water component 14. The actual use object of the water use component can be adjusted according to the actual application.

[0030] By adopting the aero-derivative gas turbine exhaust gas recycling system of the present application, the aero-derivative gas turbine generator set can further recycle the flue gas that is about to be discharged into the atmosphere after circulating through the waste heat boiler. The exhaust gas recycling system uses flue gas at about 80-100°C to prepare winter heating hot water and cold / hot water for daily life for the factory / park. At the same time, in extreme weather, it can provide heat medium water for the gas turbine air intake anti-icing circulation system to ensure the stable operation of the gas turbine generator set under winter conditions. After the gas turbine generator set is used through the combined cycle, the system further utilizes low-level energy for heating, improves the utilization rate of low-level energy, and expands the scope of cascade utilization of high-quality energy. The comprehensive utilization rate of the energy of the entire system can reach more than 90%, with good economic and social benefits.

[0031] The heat exchange system in the flue is provided with a waste heat boiler exhaust air inlet 15 and a waste heat boiler exhaust air outlet 16. The flow direction of the pipeline inside the heat exchange system in the flue is from the waste heat boiler exhaust air inlet 15 to the waste heat boiler exhaust air outlet 16, and the pipeline is arranged in an S shape.

[0032] A first one-way valve 3, a first pump group 4 and a pressure regulating valve 5 are sequentially arranged on the pipeline between the water inlet reservoir 1 and the heat exchange system in the flue. An output end of the pressure regulating valve 5 is connected to the water inlet reservoir 1 to form a loop. A water inlet 2 is arranged on the water inlet reservoir 1.

[0033] The water storage capacity of the water inlet reservoir 1 is greater than the water storage capacity of the water reservoir 6, ensuring that the hot water inside the water reservoir 6 can be replenished in time after being consumed.

[0034] A second one-way valve 7 and a second pump group 8 are sequentially arranged on the pipeline between the water reservoir 6 and the water-using component.

[0035] A first pressure and temperature regulating valve group 9 is provided on the pipeline between the water reservoir 6 and the engine air intake anti-icing coil 12, and an output end of the first pressure and temperature regulating valve group 9 is connected to the water reservoir 6 to form a loop.

[0036] A second pressure and temperature regulating valve group 11 is provided on the pipeline between the water storage tank 6 and the winter heating water component 13 .

[0037] A remote control valve group 10 is provided on the pipeline between the water reservoir 6 and the domestic water component 14. Since the output end of the domestic water component 14 may directly consume water, it may not be circulated into the system.

[0038] All pipelines are made of 304 stainless steel to effectively avoid pipeline corrosion. Each pipeline is equipped with a power device and pipeline filter, and a one-way valve to prevent backflow.

[0039] The water inlet reservoir 1 and the water reservoir 6 are both installed with liquid level gauges, temperature and pressure measuring elements, and the water tanks and pipelines are equipped with safety function elements such as safety valves and discharge valves.

[0040] When winter comes, the domestic hot water, heating and gas turbine generator set intake anti-icing systems in the park / factory area require heat media of different temperatures. This system uses the first pump group 4 as a power to heat the stored water in the water inlet reservoir 1 through the heat exchange system in the flue, and then temporarily stores it in the reservoir 6 for standby. The heat media is then transferred to the gas turbine intake anti-icing coil 12 through the second pump group 8, and the pressure, temperature and flow are adjusted through the first pressure and temperature regulating valve group 9. Similarly, the heat media in the reservoir 6 can also provide hot water for the domestic water component 14 and provide a heat source for the winter heating water component 13. The main purpose of the reservoir 6 is to prevent the system from starting and stopping frequently and to increase the system's operating life.

[0041] In summer or when the system does not need to be operated, drain the water from the pipes and turn off the pump and valve group.

[0042] This system provides heat medium water for the air intake anti-icing system of the aero-derivative gas turbine generator set through the exhaust gas recycling system, ensuring the stable operation of the gas turbine generator set under winter conditions. The flue gas at about 80-100℃ is used to prepare winter heating hot water and cold / hot water for daily life for the factory / park. After the gas turbine generator set passes through the combined cycle, the system further utilizes low-level energy for heating, improves the utilization rate of low-level energy, and expands the scope of cascade utilization of high-quality energy.

[0043] In the description of the present application, it should be understood that the terms "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0044] The above describes the specific embodiments of the present invention. It should be understood that the present invention is not limited to the above specific embodiments, and those skilled in the art can make various changes or modifications within the scope of the claims, which does not affect the essence of the present invention. In the absence of conflict, the embodiments of the present application and the features in the embodiments can be combined with each other at will.

Claims

1. An aeroderivative gas turbine exhaust gas recycling system, characterized in that: The invention comprises a water inlet reservoir (1), a water reservoir (6) and a water use component which are connected in sequence through a pipeline to form a loop, and a one-way valve is installed in each pipeline. The pipeline between the water inlet reservoir (1) and the water reservoir (6) is arranged inside a heat exchange system in a flue, and the water use component comprises a gas turbine air intake anti-icing coil (12), a winter heating water component (13) and a domestic water component (14) which are arranged in parallel.

2. The aero-derivative gas engine exhaust gas recycling system according to claim 1, characterized in that: The flue heat exchange system is provided with a waste heat boiler exhaust air inlet (15) and a waste heat boiler exhaust air outlet (16); the flow direction of the pipeline inside the flue heat exchange system is from the waste heat boiler exhaust air inlet (15) to the waste heat boiler exhaust air outlet (16), and the pipeline is arranged in an S shape.

3. The aero-derivative gas engine exhaust gas recycling system according to claim 1, characterized in that: A first one-way valve (3), a first pump group (4) and a pressure regulating valve (5) are sequentially arranged on the pipeline between the water inlet reservoir (1) and the heat exchange system in the flue; an output end of the pressure regulating valve (5) is connected to the water inlet reservoir (1) to form a loop; and a water inlet (2) is arranged on the water inlet reservoir (1).

4. The aero-derivative combustion engine exhaust gas recycling system according to claim 1, characterized in that: The water storage capacity of the water inlet reservoir (1) is greater than the water storage capacity of the water reservoir (6).

5. The aero-derivative gas engine exhaust gas recycling system according to claim 1, characterized in that: A second one-way valve (7) and a second pump group (8) are sequentially arranged on the pipeline between the water storage tank (6) and the water-using component.

6. The aero-derivative gas engine exhaust gas recycling system according to claim 1, characterized in that: A first pressure and temperature regulating valve group (9) is provided on the pipeline between the water reservoir (6) and the engine air intake anti-icing coil (12), and an output end of the first pressure and temperature regulating valve group (9) is connected to the water reservoir (6) to form a loop.

7. The aero-derivative combustion engine exhaust gas recycling system according to claim 1, characterized in that: A second pressure and temperature regulating valve group (11) is provided on the pipeline between the water storage tank (6) and the winter heating water component (13).

8. The aero-derivative combustion engine exhaust gas recycling system according to claim 1, characterized in that: A remote control valve group (10) is provided on the pipeline between the water reservoir (6) and the domestic water component (14).

9. The aero-derivative combustion engine exhaust gas recycling system according to claim 1, characterized in that: The pipelines are all made of 304 stainless steel pipelines, and any pipeline is equipped with a power device and a pipeline filter.

10. The aero-derivative gas engine exhaust gas recycling system according to claim 1, characterized in that: The water inlet reservoir (1) and the water reservoir (6) are both equipped with a liquid level gauge, a safety valve, a discharge valve, and temperature and pressure measuring elements.

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