Light gas turbine air intake filtration system structure

Abstract

The utility model relates to the technical field of gas turbine discloses a light gas turbine air intake filter system structure, including air intake support and filter chamber body still includes silencer and air intake pressure stabilization chamber, filter chamber body is set up in the top of air intake support through bolt, both ends of filter chamber body are equipped with air intake, the middle part of filter chamber body is equipped with air intake gas collection channel, both sides of air intake gas collection channel all are equipped with multistage filter device, be equipped with with multistage filter device corresponding several sets of access door on filter chamber body, the bottom of air intake gas collection channel is connected with the top of silencer through soft connection, the bottom of silencer is connected with air intake pressure stabilization chamber, and air intake pressure stabilization chamber sets up on ground. The utility model can not only effectively filter the impurity in air, prevent single grade filtration failure and lead to the impurity into the inside of gas turbine, but also can improve space utilization, effectively improved the use effect of air intake filter system.

Description

Technical Field

[0001] This utility model relates to the field of gas turbine technology, and in particular to a structure for a lightweight gas turbine intake air filtration system. Background Technology

[0002] The performance and operational reliability of a gas turbine are closely related to the quality and cleanliness of the air entering the unit. The inlet filter chamber structure is one of the key components ensuring the efficient and stable operation of the gas turbine. Its structural design needs to optimize the airflow field, reduce flow loss, and increase turbine output, while also preventing external dust and impurities from entering the gas turbine, thus preventing damage to the turbine blades and blockage of ventilation and cooling channels. Therefore, a qualified air filter needs to be installed at the gas turbine's inlet. Since the filter element in the filter chamber will gradually become clogged with accumulated dust and impurities over time, leading to a decline in filtration performance, the filter needs to be cleaned and replaced regularly during use.

[0003] The existing technology has at least the following problems: First, most filter chambers currently use single-stage filter cartridges. When the filter cartridge becomes clogged to a certain extent, it needs to be disassembled and replaced. After the filter cartridge is disassembled, external impurities and dust can easily enter the gas turbine through the air inlet. Moreover, during normal use, if the filter cartridge fails, it will increase the operational risk of the gas turbine. Second, replacing the filter cartridge requires a certain amount of maintenance access space. The more filter cartridge stages there are, the more maintenance access space is required, which often results in an excessively large filter chamber size. Combined with other system structures, this leads to high space occupation costs, making it unsuitable for plant areas with limited land and resulting in low space utilization. Utility Model Content

[0004] This invention addresses the shortcomings of existing technologies by developing a lightweight gas turbine intake filtration system structure. This invention can effectively filter impurities in the air, preventing impurities from entering the gas turbine due to single-stage filtration failure, and can also improve space utilization, thus effectively improving the performance of the intake filtration system.

[0005] The technical solution of this utility model to solve the technical problem is as follows: a lightweight gas turbine intake filtration system structure, including an intake bracket and a filter chamber body, as well as a silencer and an intake pressure stabilizing chamber. The filter chamber body is bolted to the top of the intake bracket. The filter chamber body has intake ports at both ends and an intake gas collection channel in the middle. Multi-stage filtration devices are provided on both sides of the intake gas collection channel. The filter chamber body has several sets of maintenance doors corresponding to the multi-stage filtration devices. The bottom of the intake gas collection channel is connected to the top of the silencer through a flexible connection. The bottom of the silencer is connected to the intake pressure stabilizing chamber, which is located on the ground.

[0006] As an optimization, a heat exchanger is installed on the inner side of the air inlet, and a rain shield is installed on the outer side of the air inlet. By installing the heat exchanger, the intake air can be heated or cooled, which has an anti-icing effect in winter and a cooling effect in summer, thereby improving the output of the gas turbine; by installing the rain shield, rainwater can be prevented from entering the filter chamber.

[0007] As an optimization, the multi-stage filtration device includes a first filter element, a second filter element, and a third filter element arranged sequentially and at intervals from the air inlet towards the air intake and collection channel. All three filter elements are mounted within the filtration chamber via mounting brackets and are detachably connected to the mounting brackets via knob-type pressure plates. The first filter element enables coarse filtration; the second filter element enables fine filtration; and the third filter element enables three-stage high-efficiency filtration. This not only ensures air cleanliness but also significantly improves filtration reliability, preventing impurities from entering the gas turbine due to single-stage filtration failure. The mounting brackets and knob-type pressure plates facilitate filter element installation, and the knob-type pressure plates can simultaneously secure two sets of filter elements on both sides, making installation and disassembly convenient and unrestricted by filter element thickness.

[0008] As an optimization, a first maintenance passage is provided between the heat exchanger and the first filter element, and a second maintenance passage is provided between the second and third filter elements, with maintenance doors corresponding to the first and second maintenance passages respectively. By setting up the first maintenance passage, both the heat exchanger and the first filter element can be maintained simultaneously, saving space; by setting up the second maintenance passage, both the second and third filter elements can be maintained simultaneously, also saving space.

[0009] As an optimization, both the first and second maintenance channels are equipped with grating plates. These grating plates facilitate the inspection and maintenance of the filter element located above the filter chamber by staff.

[0010] As an optimization, a ladder is vertically installed in the middle of the air intake bracket, a walkway railing is installed at the top of the air intake bracket, and the bottom of the air intake bracket is fixed to the ground with anchor bolts. The ladder makes it easy for workers to climb to the top of the air intake bracket for maintenance; the walkway railing prevents workers from accidentally falling; and the anchor bolts ensure that the air intake bracket is fixed to the ground.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] By installing an intake bracket, the filter chamber body can be supported and raised, providing space for the installation of the silencer and intake pressure stabilizing chamber, thus improving space utilization. The filter chamber body itself allows for the installation of multi-stage filtration devices. The silencer effectively reduces noise generated by high-speed airflow. The intake pressure stabilizing chamber collects and stabilizes airflow before supplying it to the gas turbine for combustion. The intake collection channel gathers airflow from two sets of intake ports and delivers it uniformly to the intake pressure stabilizing chamber. The multi-stage filtration device effectively filters impurities in the air, ensuring the cleanliness of the air entering the gas turbine. Furthermore, the multi-stage filtration structure significantly improves filtration reliability, preventing impurities from entering the gas turbine due to single-stage filtration failure. Inspection doors allow for the maintenance of the multi-stage filtration device. Flexible connections absorb thermal expansion during gas turbine operation, preventing thermal deformation of the intake system structure. This invention effectively filters impurities in the air, preventing impurities from entering the gas turbine due to single-stage filtration failure, while also improving space utilization, thus enhancing the overall performance of the intake filtration system. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of one embodiment of the present utility model.

[0014] Figure 2 This is a partial schematic diagram of the first filter element, mounting bracket, and knob-type pressure plate in one embodiment of the present invention.

[0015] In the diagram: 1. Intake bracket; 2. Filter chamber body; 3. Silencer; 4. Intake pressure stabilizing chamber; 5. Intake air collection channel; 6. Inspection door; 7. Flexible connection; 8. Heat exchanger; 9. Rain cover; 10. First filter element; 11. Second filter element; 12. Third filter element; 13. Mounting bracket; 14. Knob-type pressure plate; 15. First maintenance passage; 16. Second maintenance passage; 17. Grille plate; 18. Ladder; 19. Walkway railing; 20. Anchor bolts. Detailed Implementation

[0016] To clearly illustrate the technical features of this solution, the present invention will be described in detail below through specific implementation methods and in conjunction with the accompanying drawings.

[0017] Example 1

[0018] Figures 1 to 2 As one embodiment of this utility model, such as Figure 1As shown, a lightweight gas turbine intake filtration system structure includes an intake support 1 and a filter chamber body 2, as well as a silencer 3 and an intake pressure stabilizing chamber 4. The filter chamber body 2 is bolted to the top of the intake support 1. The filter chamber body 2 has air inlets at both ends and an intake collection channel 5 in the middle. Multi-stage filtration devices are provided on both sides of the intake collection channel 5. The filter chamber body 2 has several sets of maintenance doors 6 corresponding to the multi-stage filtration devices. The bottom of the intake collection channel 5 is connected to the top of the silencer 3 through a flexible connection 7. The bottom of the silencer 3 is connected to the intake pressure stabilizing chamber 4, which is located on the ground.

[0019] By setting up the intake bracket 1, the filter chamber body 2 can be supported and raised, providing space for the installation of the silencer 3 and the intake pressure stabilizing chamber 4, thus improving space utilization. By setting up the filter chamber body 2, a multi-stage filtration device can be installed. By setting up the silencer 3, the noise generated when high-speed airflow passes through can be effectively reduced. By setting up the intake pressure stabilizing chamber 4, the gas can be collected and stabilized before being supplied to the gas turbine for combustion. By setting up the intake gas collection channel 5, the airflow from the two sets of intake ports can be collected and uniformly delivered to the intake pressure stabilizing chamber 4. By setting up the multi-stage filtration device, impurities in the air can be effectively filtered, ensuring the cleanliness of the air entering the gas turbine. The multi-stage filtration structure can also significantly improve filtration reliability and prevent impurities from entering the gas turbine due to single-stage filtration failure. By setting up the inspection door 6, the multi-stage filtration device can be inspected and maintained. By setting up the flexible connection 7, the thermal expansion during the operation of the gas turbine can be absorbed, preventing thermal deformation of the intake system structure.

[0020] A heat exchanger 8 is mounted on the inner side of the air inlet via a bracket, and a rain shield 9 is mounted on the outer side of the air inlet. A filter steel mesh is installed at the air inlet at the bottom of the rain shield 9. The filter steel mesh can prevent large particles such as flying insects, leaves, and birds from entering the filter chamber body 2. By setting up the heat exchanger 8, the intake air can be heated or cooled, providing an anti-icing effect in winter and a cooling effect in summer, thereby improving the output of the gas turbine. The rain shield 9 can prevent rainwater from entering the filter chamber body 2.

[0021] like Figure 1 and Figure 2As shown, the multi-stage filtration device includes a first filter element 10, a second filter element 11, and a third filter element 12 arranged sequentially and at intervals from the air inlet to the air intake and collection channel 5. The first filter element 10, second filter element 11, and third filter element 12 are all mounted inside the filter chamber body 2 via mounting brackets 13. Each filter element 10, second filter element 11, and third filter element 12 is threadedly connected to its respective mounting bracket 13 via a knob-type pressure plate 14. The mounting bracket 13 is welded and fixed to the filter chamber body 2. By setting the first filter element 10, coarse filtration can be performed; by setting the second filter element 11, fine filtration can be performed; and by setting the third filter element 12, three-stage high-efficiency filtration can be performed. This not only ensures air cleanliness but also significantly improves filtration reliability, preventing impurities from entering the gas turbine due to single-stage filtration failure. The mounting brackets 13 and knob-type pressure plates 14 facilitate filter element installation, and the knob-type pressure plates 14 can simultaneously fix two sets of filter elements on both sides, making installation and disassembly convenient and not limited by filter element thickness.

[0022] A first maintenance passage 15 is provided between the heat exchanger 8 and the first filter element 10, and a second maintenance passage 16 is provided between the second filter element 11 and the third filter element 12. Maintenance doors 6 correspond to the first maintenance passage 15 and the second maintenance passage 16 respectively. By providing the first maintenance passage 15, both the heat exchanger 8 and the first filter element 10 can be maintained simultaneously, saving space; similarly, by providing the second maintenance passage 16, both the second filter element 11 and the third filter element 12 can be maintained simultaneously, also saving space.

[0023] Both the first maintenance passage 15 and the second maintenance passage 16 are equipped with grating plates 17. By setting up the grating plates 17, it is convenient for staff to inspect and maintain the filter element inside the upper part of the filter chamber body 2.

[0024] A ladder 18 is vertically installed in the middle of the air intake bracket 1, a walkway railing 19 is installed at the top of the air intake bracket 1, and the bottom of the air intake bracket 1 is fixed to the ground by anchor bolts 20. The ladder 18 makes it convenient for workers to climb to the top of the air intake bracket 1 for maintenance; the walkway railing 19 prevents workers from falling accidentally; and the anchor bolts 20 fix the air intake bracket 1 to the ground.

[0025] During intake, air enters the filter chamber body 2 through the rain shields 9 on both sides and the air inlet. The heat exchanger 8 heats the intake air, and then the air passes through the first filter element 10, the second filter element 11, and the third filter element 12 in sequence to complete filtration. The clean air on both sides is collected in the intake collection channel 5 and enters the silencer 3 through the flexible connection 7. The silencer 3 can effectively reduce the noise generated when the high-speed airflow passes through. Finally, the air enters the intake pressure stabilizing chamber 4, and after the air is collected and stabilized, it is supplied to the gas turbine for combustion on the rear side. During maintenance, workers can climb to the top of the intake bracket 1 using ladder 18 and enter the first maintenance passage 15 through the maintenance door 6 to inspect the heat exchanger 8 and the first filter element 10. When entering the second maintenance passage 16 through the maintenance door 6, they can inspect the second filter element 11 and the third filter element 12. When the filter element needs to be replaced, workers can unscrew the knob-type pressure plates 14 on both sides of the filter element, remove the filter element for replacement, and then tighten the knob-type pressure plates 14 again to fix the filter element. The replacement process is very convenient and quick.

[0026] The descriptions of the orientation or relative positional relationships of the structure in this utility model, such as "center", "up", "down", "left", "right", "vertical", "horizontal", "inner", and "outer", are based on the orientation or positional relationships shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the structure referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

Claims

1. A lightweight gas turbine intake filtration system structure, comprising an intake support (1) and a filter chamber body (2), characterized in that: It also includes a muffler (3) and an intake pressure stabilizing chamber (4). The filter chamber body (2) is bolted to the top of the intake bracket (1). The filter chamber body (2) has air inlets at both ends and an intake air collection channel (5) in the middle. Multi-stage filtration devices are provided on both sides of the intake air collection channel (5). The filter chamber body (2) has several sets of maintenance doors (6) corresponding to the multi-stage filtration devices. The bottom of the intake air collection channel (5) is connected to the top of the muffler (3) through a flexible connection (7). The bottom of the muffler (3) is connected to the intake pressure stabilizing chamber (4). The intake pressure stabilizing chamber (4) is set on the ground.

2. The structure of the lightweight gas turbine inlet filtration system according to claim 1, characterized in that: A heat exchanger (8) is provided on the inner side of the air inlet, and a rain cover (9) is provided on the outer side of the air inlet.

3. The structure of the lightweight gas turbine inlet filtration system according to claim 2, characterized in that: The multi-stage filtration device includes a first filter element (10), a second filter element (11), and a third filter element (12) arranged sequentially at intervals from the air inlet to the air intake and collection channel (5). The first filter element (10), the second filter element (11), and the third filter element (12) are all installed in the filter chamber body (2) through a mounting bracket (13). The first filter element (10), the second filter element (11), and the third filter element (12) are all detachably connected to the mounting bracket (13) through a knob-type pressure plate (14).

4. The structure of the lightweight gas turbine inlet filtration system according to claim 3, characterized in that: A first maintenance channel (15) is provided between the heat exchanger (8) and the first filter element (10), and a second maintenance channel (16) is provided between the second filter element (11) and the third filter element (12). The maintenance door (6) corresponds to the first maintenance channel (15) and the second maintenance channel (16) respectively.

5. The structure of the lightweight gas turbine inlet filtration system according to claim 4, characterized in that: Both the first maintenance passage (15) and the second maintenance passage (16) are equipped with grating plates (17).

6. The structure of the lightweight gas turbine inlet filtration system according to any one of claims 1 to 5, characterized in that: A ladder (18) is vertically installed in the middle of the air intake bracket (1), a walkway railing (19) is installed at the top of the air intake bracket (1), and the bottom of the air intake bracket (1) is set on the ground by anchor bolts (20).

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