Gas-steam cycle distributed energy station combined plant unit arrangement structure

Abstract

This invention relates to the field of energy station technology, specifically to a combined plant and unit layout structure for a gas-steam cycle distributed energy station. The structure includes: a plant body comprising symmetrically arranged side plants and a central plant; a gas generator set housed within the side plants, which also houses a waste heat recovery unit connected to the gas generator set, with the exhaust end of the gas generator set connected to the intake end of the waste heat recovery unit; and an auxiliary unit housed within the central plant and connected to the waste heat recovery unit. This auxiliary unit is used to condense steam and filter and recycle the condensed steam. This application combines gas turbine and steam turbine power generation technologies, achieving higher energy conversion efficiency than traditional generator sets with the same fuel consumption, resulting in lower operating costs and lower carbon emissions. Furthermore, the rational layout increases the space utilization rate of the plant.

Description

Technical Field

[0001] This invention relates to the field of energy station technology, specifically to the combined plant unit layout structure of a gas-steam cycle distributed energy station. Background Technology

[0002] Energy shortages and environmental degradation have become increasingly serious global problems. Gas-fired steam combined cycle distributed energy stations simultaneously supply electricity, heat, and cooling, utilizing energy in a cascade manner. They are characterized by high efficiency, energy saving, reduced consumption, and flexible operation. At the same time, they can improve the power supply structure, peak shaving and valley filling, and enhance energy security and emergency response capabilities. They are a major energy supply method that conforms to the national energy development trend.

[0003] For gas-steam cycle distributed energy stations with combined power plant units, the principle is to combine gas turbines and steam turbines to efficiently utilize fuel energy and achieve the combined production of electricity and heat. The advantages of gas-steam cycle distributed energy stations lie in their high-efficiency energy conversion and environmentally friendly characteristics. By combining the advantages of gas turbines and steam turbines, this layout can generate more electricity and heat with the same fuel consumption. In addition, this layout has good flexibility and adaptability, and can adjust the power generation and heating ratio according to demand to meet the needs of different users.

[0004] However, when installing the corresponding facilities in the plant, the large span between the various facilities, the long steam pipelines, water supply pipelines, and cooling pipelines between the gas power generation and waste heat utilization units and the condenser, etc., result in high initial investment and occupy a large space, reducing the space utilization rate of the plant. Summary of the Invention

[0005] The purpose of this invention is to provide a combined plant unit layout structure for a gas-steam cycle distributed energy station to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] The combined plant unit layout structure of the gas-steam cycle distributed energy station includes:

[0008] The factory building body includes symmetrically arranged side factory buildings and intermediate factory buildings;

[0009] A gas generator set is installed in the side workshop, and a waste heat recovery unit connected to the gas generator set is also installed in the side workshop. The exhaust end of the gas generator set is connected to the air inlet end of the waste heat recovery unit.

[0010] An auxiliary unit is located in the intermediate plant and connected to the waste heat recovery unit. The auxiliary unit is used to condense steam and filter and circulate the condensed steam.

[0011] As a further aspect of the present invention: the gas generator set includes gas generator bodies arranged symmetrically, with the gas generator bodies arranged side by side.

[0012] As a further embodiment of the present invention: the gas generator set further includes a turbine chassis for supporting the gas generator body, the turbine chassis is placed on the ground with a first grouting surface and a second grouting surface, and the turbine chassis is provided with a sturdy component connected to the first grouting surface and the second grouting surface.

[0013] As a further embodiment of the present invention: the stabilizing component includes a pre-embedded sleeve penetrating the first grouting surface and the second grouting surface, a pre-embedded rod is installed inside the pre-embedded sleeve, a wedge-shaped pad is fixed on the second grouting surface and sleeved on the pre-embedded rod, and a connecting structure connected to the wedge-shaped pad is provided on the pre-embedded rod.

[0014] As a further embodiment of the present invention: the connection structure includes a chassis connecting plate fixedly installed on the bottom of the turbine chassis and sleeved on the pre-embedded rod, the chassis connecting plate abutting against the wedge-shaped pad, and anchor bolts sleeved at both ends of the pre-embedded rod, the anchor bolts abutting against the chassis connecting plate.

[0015] As a further embodiment of the present invention: the waste heat utilization unit includes a waste heat boiler body and a boiler auxiliary room that are symmetrically and mirror-distributed. The waste heat boiler body and the boiler auxiliary room are arranged in a translational manner. The air inlet end of the waste heat boiler body is connected to the exhaust end of the gas generator body.

[0016] As a further embodiment of the present invention: the auxiliary unit includes condensers installed in the intermediate plant and arranged symmetrically.

[0017] As a further embodiment of the present invention: the auxiliary unit also includes a filter and circulation pipeline installed in the intermediate plant, wherein the filter is connected to the pipeline of the condenser.

[0018] Compared with existing technologies, the advantages of this invention are: This application combines gas turbine and steam turbine power generation technologies, achieving higher energy conversion efficiency than traditional generator sets with the same fuel consumption, resulting in lower operating costs and lower carbon emissions. Natural gas or other fuels are burned in the combustion chamber of the gas turbine generator, producing high-temperature, high-pressure gas that drives the turbine blades to rotate, thereby generating electricity. The high-temperature gas discharged from the gas turbine generator enters the waste heat recovery unit, where it is heated to produce high-temperature, high-pressure steam, which drives the steam turbine to rotate, further generating electricity.

[0019] The exhaust end of the gas generator body is connected to the intake end of the waste heat recovery unit, which can transport the high-temperature gas generated by the gas generator body to the waste heat recovery unit for power generation. The gas generator body adopts a bottom-outlet method, which optimizes the layout of the enclosed busbar, improves reliability and aesthetics. At the same time, the side plant and the intermediate plant adopt a single-span, large-span, large-platform design, which simplifies the internal layout and improves maintenance convenience and civil engineering economic benefits.

[0020] The gas generator and auxiliary units are arranged longitudinally, which allows for the rational arrangement of various production equipment in a turbine hall with a smaller footprint. This improves the effective utilization of plant space and reduces the footprint of the plant itself, thus lowering the initial investment in civil engineering. The two condensers share a single circulation pipeline in and out of the plant, reducing the length of the circulation pipeline and optimizing the engineering workload. Attached Figure Description

[0021] Figure 1 A schematic diagram of an embodiment of the combined plant unit layout structure for a gas-steam cycle distributed energy station.

[0022] Figure 2 This is a schematic diagram of the gas generator set in an embodiment of the combined plant unit layout structure of a gas-steam cycle distributed energy station.

[0023] Figure 3 A schematic diagram of the turbine chassis in an embodiment of the combined plant unit layout structure of a gas-steam cycle distributed energy station.

[0024] Figure 4 This is a schematic diagram of the structure of some gas generator sets in the embodiment of the combined plant unit layout of a gas-steam cycle distributed energy station.

[0025] In the diagram: 1. Steam turbine chassis; 2. Embedded sleeve; 3. Embedded rod; 301. Anchor bolt; 4. First grouting surface; 5. Second grouting surface; 6. Wedge-shaped shim; 7. Chassis connecting plate; 8. Condenser; 9. Waste heat boiler body; 10. Boiler auxiliary room; 11. Filter; 12. Circulation pipeline; 13. Gas generator body; 14. Plant body; 1401. Lateral plant; 1402. Intermediate plant. Detailed Implementation

[0026] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0027] Furthermore, elements in this invention are referred to as being "fixed to" or "set on" another element, which may be directly on the other element or may also include an intervening element. When an element is considered to be "connected" to another element, it may be directly connected to the other element or may also include an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementations.

[0028] Please see Figures 1-4 In this embodiment of the invention, the combined plant unit layout structure of the gas-steam cycle distributed energy station includes:

[0029] The plant body 14 includes symmetrically arranged lateral plant buildings 1401 and intermediate plant buildings 1402. The gas-steam combined cycle generator set is a highly efficient power generation system that combines gas turbine and steam turbine power generation technologies. It can achieve higher energy conversion efficiency than traditional generator sets with the same fuel consumption, resulting in lower operating costs and lower carbon emissions. This power generation technology has been widely used in the power, industrial, and other fields.

[0030] A gas turbine generator set is installed within the lateral plant 1401. The gas turbine generator set includes symmetrically arranged gas turbine generator bodies 13, which are arranged side-by-side. The gas turbine generator set also includes a turbine chassis 1 for supporting the gas turbine generator bodies 13. The turbine chassis 1 is placed on a ground surface with a first grouting surface 4 and a second grouting surface 5. The turbine chassis 1 is equipped with a stabilizing component connected to the first grouting surface 4 and the second grouting surface 5. The stabilizing component includes components that penetrate the first grouting surface 4 and the second grouting surface 5. The second grouting surface 5 has a pre-embedded sleeve 2, and a pre-embedded rod 3 is installed inside the pre-embedded sleeve 2. A wedge-shaped pad 6 is fixed on the second grouting surface 5 and sleeved on the pre-embedded rod 3. The pre-embedded rod 3 is provided with a connection structure that connects to the wedge-shaped pad 6. The connection structure mentioned above includes a chassis connecting plate 7 fixedly installed on the bottom of the turbine chassis 1 and sleeved on the pre-embedded rod 3. The chassis connecting plate 7 abuts against the wedge-shaped pad 6. Anchor bolts 301 are sleeved at both ends of the pre-embedded rod 3, and the anchor bolts 301 abut against the chassis connecting plate 7.

[0031] In detail, natural gas or other fuels are burned in the combustion chamber of the gas generator body 13, producing high-temperature, high-pressure gas that drives the turbine blades to rotate, thereby generating electricity. The high-temperature gas discharged from the gas generator body 13 enters the waste heat recovery unit, where it is heated to produce high-temperature, high-pressure steam, which drives the steam turbine to rotate, further generating electricity. The turbine chassis 1 is the core structure of the gas generator body 13 and needs to have sufficient strength, rigidity, and dynamic characteristics to resist equipment loads and vibrations. Therefore, it is necessary to ensure the stability of the turbine chassis 1 so that it can meet the requirements for stable operation of the unit. When installing the turbine chassis 1, it can be first poured on the ground to form a first grouting surface 4 and a second grouting surface 5. Under the action of the first grouting surface 4 and the second grouting surface 5, the rigidity and strength of the ground are enhanced to meet the support force for the gas generator body 13. At the same time, it can be installed within the first grouting surface 4 and the second grouting surface 5. Install the pre-embedded sleeve 2 and insert the pre-embedded rod 3 into the pre-embedded sleeve 2. When the insertion depth of the pre-embedded rod 3 reaches the required level, the anchor bolt 301 can be installed at the bottom of the pre-embedded rod 3 to fix the bottom of the pre-embedded rod 3. After the pre-embedded rod 3 is installed, the wedge-shaped shim 6 can be fitted onto the pre-embedded rod 3 and fixed onto the second grouting surface 5 with bolts. Under the action of the wedge-shaped shim 6, the stability of the pre-embedded rod 3 is further enhanced. At this time, the chassis connecting plate 7 can be fitted onto the pre-embedded rod 3 and abut against the wedge-shaped shim 6. At the same time, the chassis connecting plate 7 is fixed to the pre-embedded rod 3 with the anchor bolt 301. Under the action of the wedge-shaped shim 6 and the pre-embedded rod 3, the stress and vibration resistance of the turbine chassis 1 are well guaranteed, ensuring the normal operation of the gas generator body 13.

[0032] The exhaust end of the gas generator body 13 is connected to the intake end of the waste heat utilization unit, which can transport the high-temperature gas generated by the gas generator body 13 to the waste heat utilization unit for power generation. The gas generator body 13 adopts a bottom-out line method, which optimizes the layout of the enclosed busbar and improves reliability and aesthetics. At the same time, the side plant 1401 and the intermediate plant 1402 adopt a single-span, large-span, and large-platform design, which simplifies the internal layout and improves maintenance convenience and civil engineering economic benefits.

[0033] The lateral plant 1401 is also equipped with a waste heat utilization unit connected to the gas generator set. The exhaust end of the gas generator set is connected to the air inlet end of the waste heat utilization unit. The waste heat utilization unit includes a waste heat boiler body 9 and a boiler auxiliary room 10 that are symmetrically and mirror-distributed. The waste heat boiler body 9 and the boiler auxiliary room 10 are arranged in a translational manner. The air inlet end of the waste heat boiler body 9 is connected to the exhaust end of the gas generator body 13.

[0034] It should be noted that the air inlet of the waste heat boiler body 9 is connected to the exhaust end of the gas generator body 13. This arrangement helps to reduce the length of pipes and cables, and decrease the pressure drop in the pipes, thereby reducing construction investment and improving economic efficiency. Simultaneously, it improves the space utilization of the auxiliary plant. Furthermore, due to the shorter pipe length, heat loss during gas transport is also minimal, thus increasing the heat utilization rate of the waste heat boiler body 9. When high-temperature gas is introduced into the waste heat boiler body 9, it heats the water in the boiler, converting it into high-pressure steam. This steam is then transported to the steam turbine, driving it to generate electricity. This combined cycle not only improves energy utilization but also reduces pollutant emissions. The boiler auxiliary room 10 is located inside the waste heat boiler body 9, and the outer area can be used to house other auxiliary rooms, thereby increasing the space utilization of the plant.

[0035] An auxiliary unit is installed in the intermediate plant 1402 and connected to the waste heat utilization unit. The auxiliary unit is used to condense steam and filter and circulate the condensed steam. The auxiliary unit includes condensers 8 installed in the intermediate plant 1402 and arranged symmetrically. The auxiliary unit also includes a filter 11 and a circulation pipeline 12 installed in the intermediate plant 1402. The filter 11 is connected to the pipeline of the condenser 8.

[0036] Furthermore, the gas generator body 13 and auxiliary units are arranged longitudinally, which allows for the rational arrangement of various production equipment within a turbine hall with a smaller footprint. This improves the effective utilization of plant space and reduces the footprint of the plant body 14, thus lowering the initial investment in civil engineering. The inlet of the condenser 8 is connected to the exhaust of the waste heat boiler body 9. Through the condenser 8, the gas is condensed into a liquid. Since the two condensers 8 are symmetrically arranged, and the filter 11 and circulation pipeline 12 are located between the two condensers 8, the interconnecting pipelines are shorter, thereby reducing construction difficulty. The liquid produced after condensation by the condenser 8 is transported to the filter 11. Under the action of the filter 11, the condensed liquid is filtered and then transported to the circulation pipeline 12. Therefore, the two condensers 8 share a single circulation pipeline 12 to enter and exit the plant, reducing the length of the circulation pipeline 12 and optimizing the engineering workload.

[0037] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0038] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A combined plant unit layout structure for a gas-steam cycle distributed energy station, characterized in that: include: The main body of the factory building (14) includes a symmetrically arranged side factory building (1401) and a middle factory building (1402). A gas generator set is installed in the side plant (1401). The side plant (1401) is also equipped with a waste heat utilization unit connected to the gas generator set. The exhaust end of the gas generator set is connected to the air inlet end of the waste heat utilization unit. An auxiliary unit is installed in the intermediate plant (1402) and connected to the waste heat utilization unit. The auxiliary unit is used to condense steam and filter and circulate the condensed steam. The gas generator set includes symmetrically arranged gas generator bodies (13), which are arranged side by side; The gas generator set also includes a turbine chassis (1) for supporting the gas generator body (13). The turbine chassis (1) is placed on the ground with a first grouting surface (4) and a second grouting surface (5). The turbine chassis (1) is provided with a sturdy component that is connected to the first grouting surface (4) and the second grouting surface (5). The stabilizing component includes a pre-embedded sleeve (2) that penetrates the first grouting surface (4) and the second grouting surface (5). A pre-embedded rod (3) is installed inside the pre-embedded sleeve (2). A wedge-shaped pad (6) is fixed on the second grouting surface (5) and sleeved on the pre-embedded rod (3). A connection structure is provided on the pre-embedded rod (3) that connects to the wedge-shaped pad (6). The connection structure includes a chassis connecting plate (7) fixedly installed at the bottom of the turbine chassis (1) and sleeved on the pre-embedded rod (3). The chassis connecting plate (7) abuts against the wedge-shaped pad (6). Anchor bolts (301) are sleeved at both ends of the pre-embedded rod (3), and the anchor bolts (301) abut against the chassis connecting plate (7).

2. The combined plant unit layout structure of the gas-steam cycle distributed energy station according to claim 1, characterized in that, The waste heat utilization unit includes a waste heat boiler body (9) and a boiler auxiliary room (10) that are symmetrically and mirror-distributed. The waste heat boiler body (9) and the boiler auxiliary room (10) are arranged in a translational manner. The air inlet of the waste heat boiler body (9) is connected to the exhaust end of the gas generator body (13).

3. The combined plant unit layout structure of the gas-steam cycle distributed energy station according to claim 1, characterized in that, The auxiliary unit includes condensers (8) installed in the intermediate plant (1402) and arranged symmetrically.

4. The combined plant unit layout structure of the gas-steam cycle distributed energy station according to claim 3, characterized in that, The auxiliary unit also includes a filter (11) and a circulation pipeline (12) installed in the intermediate plant (1402), and the filter (11) is connected to the pipeline of the condenser (8).

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