Inlet air filtering device based on gas turbine and using method of inlet air filtering device

Abstract

The invention relates to the technical field of gas turbine gas inlet filtering devices, and discloses a gas turbine gas inlet filtering device and a using method thereof.The gas turbine gas inlet filtering device comprises a gas inlet pipe, and a first mounting box and a second mounting box are fixedly and symmetrically mounted on the outer surfaces of the two opposite sides of the gas inlet pipe correspondingly; the side, away from the air inlet pipe, of the first mounting box is of an opening structure, a second roller and a first roller are rotationally mounted between the top wall and the bottom wall of the first mounting box and the top wall and the bottom wall of the second mounting box correspondingly, the outer surfaces of the second roller and the first roller are sleeved with a filter belt, and a plurality of filter holes are evenly formed in the outer surface of the filter belt in a penetrating mode; the outer surfaces, close to the first mounting box and the second mounting box, of the air inlet pipe are both provided with openings for the filter belt to pass through in a penetrating mode. Dust on the inner side and the outer side of the filter belt is cleaned through the air blowing and sucking mechanism, and it is avoided that filter holes formed in the filter belt are blocked by the dust, and the air filtering effect is affected.

Description

Technical Field

[0001] The present invention relates to the technical field of gas turbine air intake filtering devices, and in particular to an air intake filtering device based on a gas turbine and a use method thereof. Background Art

[0002] The function and role of the gas turbine air intake filter is to filter out dust particles in the air, allowing clean air to enter the gas turbine from the air intake system, ensuring the safe and reliable operation of the gas turbine generator set.

[0003] An existing gas turbine air intake filter device (publication number: CN117905583A) has at least the following disadvantages: the above patent can further improve the air filtering effect by setting a first filter component, a second filter component and a third filter component; because the air contains dust particles, the dust particles will adhere to the first filter component, the second filter component and the third filter component, which can easily cause the filter holes to be blocked, affecting the air filtering effect. Summary of the invention

[0004] The purpose of the present invention is to solve the shortcomings of the prior art and to propose an air intake filter device based on a gas turbine and a method of using the same.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] The filter element is a filter element for a gas turbine engine, the filter element being a first element having a first portion and a second portion, the filter element being a second element having a second portion, the filter element being a third element having a second portion, the filter element being a fourth element having a second portion, the filter element being a fifth element having a second portion, the filter element being a fifth element having a second portion, the filter element being a fifth element having a second portion, the filter element being a fifth element having a second portion, the filter element being a fifth element

[0007] As a further solution of the present invention, the blowing and suction mechanism includes a fixing plate fixedly installed on the top of the air inlet pipe, an airbag is fixedly installed on the outer surface of the fixing plate close to the first installation box, a rotating joint connected to the interior of the support tube is installed on the top of the support tube, a mutually conductive conduit is installed between the airbag and the support tube through the rotating joint, and an extrusion assembly is installed between the top of the first installation box and the support tube.

[0008] As a further solution of the present invention, the extrusion assembly includes an eccentric wheel fixedly mounted on the outer surface of the top end of the support tube, a support plate is fixedly mounted on the top end of the intake pipe, two guide rods are inserted through the outer surface of the support plate, an extrusion plate is fixedly mounted on one end of the two guide rods close to the airbag, a top plate is fixedly mounted on the other end of the two guide rods, and the top plate is abutted against the outer periphery of the eccentric wheel.

[0009] As a further solution of the present invention, a return spring is sleeved on the outer surface of the guide rod, and the return spring is arranged between the support plate and the top plate.

[0010] As a further solution of the present invention, an adsorption mechanism is installed inside the first installation box, and the adsorption mechanism includes a first electrostatic dust absorption plate and a second electrostatic dust absorption plate fixedly installed inside the first installation box, the first electrostatic dust absorption plate and the second electrostatic dust absorption plate are respectively arranged on the inner and outer sides of the filter belt, and a baffle is fixedly installed on the outer surface of the first electrostatic dust absorption plate away from the second roller.

[0011] As a further solution of the present invention, the bottom of the first installation box near the first electrostatic dust suction plate and the second electrostatic dust suction plate is penetrated with an ash discharge port, and the bottom of the first installation box near the ash discharge port is detachably installed with an ash receiving box.

[0012] As a further solution of the present invention, an air duct is fixedly installed on the bottom wall of the first installation box, the air duct is inserted into the interior of the second drum, and a strip air duct is opened through the outer surface of the air duct along the axial direction, and the strip air duct is arranged in the direction of the first electrostatic dust collector.

[0013] As a further solution of the present invention, a driving motor is fixedly installed on the top of the second installation box, and the output end of the driving motor passes through the top wall of the second installation box and is fixedly installed with the rotation center of the first roller.

[0014] As a further solution of the present invention, a dustproof net is fixedly installed on the inner wall of the air inlet end of the air inlet pipe, and a connecting flange is fixedly installed on the end of the air outlet end of the air inlet pipe.

[0015] A method for using an air intake filter device based on a gas turbine comprises the following steps:

[0016] S1: Install the air inlet pipe to the air inlet end of the gas turbine through the connecting flange;

[0017] S2: The incoming air is triple filtered through the dustproof net and the double-layer filter belt to prevent dust in the air from entering the gas turbine;

[0018] S3: The first roller is driven to rotate by a driving motor, so that the first roller drives the filter belt and the second roller to rotate, so that the filter belt as a whole can filter the air.

[0019] The beneficial effects of the present invention are:

[0020] 1. The dustproof net and the double-layer filter belt can perform triple filtration on the incoming air, which can effectively prevent dust in the air from entering the gas turbine and prevent dust particles in the air from causing wear and damage to key components inside the gas turbine, thereby reducing the efficiency and life of the gas turbine;

[0021] 2. The first roller is driven to rotate by a driving motor, so that the first roller can drive the filter belt and the second roller to rotate, so that the filter belt as a whole can filter the air;

[0022] 3. Clean the dust inside and outside the filter belt through the blowing and suction mechanism to prevent the filter holes on the filter belt from being blocked by dust and affecting the air filtering effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the overall structure of an air intake filter device based on a gas turbine proposed by the present invention;

[0024] Figure 2 This is a top cross-sectional structural schematic diagram of an air intake filter device based on a gas turbine proposed by the present invention;

[0025] Figure 3 A schematic diagram of the filter belt structure of an air intake filter device based on a gas turbine proposed by the present invention;

[0026] Figure 4 A schematic diagram of a through hole structure of an air intake filter device based on a gas turbine proposed by the present invention;

[0027] Figure 5 A schematic diagram of the structure of an air duct of an air intake filter device based on a gas turbine proposed by the present invention;

[0028] Figure 6 A schematic diagram of the structure of a first electrostatic dust collecting plate of an air intake filter device based on a gas turbine proposed by the present invention;

[0029] Figure 7This is a schematic diagram of the internal structure of a first installation box of an air intake filter device based on a gas turbine proposed by the present invention;

[0030] Figure 8 This is a schematic diagram of the bottom structure of a first installation box of an air intake filter device based on a gas turbine proposed by the present invention;

[0031] Fig. 9 for Figure 1 A magnified view of the structure in the middle.

[0032] In the figure: 1. air inlet pipe; 2. first installation box; 3. second installation box; 4. first roller; 5. second roller; 6. filter belt; 7. support pipe; 8. through hole; 9. air guide pipe; 10. baffle; 11. first electrostatic dust collecting plate; 12. second electrostatic dust collecting plate; 13. ash discharge port; 14. ash receiving box; 15. eccentric wheel; 16. support plate; 17. fixing plate; 18. air bag; 19. conduit; 20. rotary joint; 21. guide rod; 22. top plate; 23. extrusion plate; 24. reset spring; 25. drive motor; 26. dustproof net; 27. connecting flange. DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0034] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0035] See attached Figure 1 -Attached Fig. 9An air intake filter device based on a gas turbine comprises an air intake pipe 1, wherein a first installation box 2 and a second installation box 3 are respectively and symmetrically fixedly installed on the outer surfaces of opposite sides of the air intake pipe 1, wherein the side of the first installation box 2 away from the air intake pipe 1 is an opening structure, and a second roller 5 and a first roller 4 are respectively rotatably installed between the top wall and the bottom wall of the first installation box 2 and the second installation box 3, and a filter belt 6 is sleeved on the outer surfaces of the second roller 5 and the first roller 4, and a plurality of filter holes are evenly penetrated on the outer surfaces of the filter belt 6, and an opening for the filter belt 6 to pass through is penetrated on the outer surfaces of the air intake pipe 1 near the first installation box 2 and the second installation box 3, and the second roller 5 It is a hollow structure, and a number of through holes 8 connected to the interior of the second roller 5 are evenly penetrated through the outer circumference thereof, a support tube 7 connected to the interior thereof is fixedly installed on the top of the second roller 5, the support tube 7 penetrates the upper surface of the first mounting box 2 and is rotatably mounted therewith, an air blowing and suction mechanism is installed on the top of the air inlet pipe 1 and the first mounting box 2, a driving motor 25 is fixedly installed on the top of the second mounting box 3, an output end of the driving motor 25 penetrates the top wall of the second mounting box 3 and is fixedly mounted to the rotation center of the first roller 4, a dustproof net 26 is fixedly installed on the inner wall of the air inlet end of the air inlet pipe 1, and a connecting flange 27 is fixedly installed on the end of the air outlet end of the air inlet pipe 1.

[0036] In this embodiment, the blowing and suction mechanism includes a fixing plate 17 fixedly mounted on the top of the air intake pipe 1, an air bag 18 is fixedly mounted on the outer surface of the fixing plate 17 close to the first installation box 2, a rotating joint 20 connected to the interior of the fixing plate 17 is mounted on the top of the support tube 7, a mutually conductive conduit 19 is installed between the air bag 18 and the support tube 7 through the rotating joint 20, an extrusion assembly is installed between the top of the first installation box 2 and the support tube 7, the extrusion assembly includes an eccentric wheel 15 fixedly mounted on the outer surface of the top of the support tube 7, a support plate 16 is fixedly mounted on the top of the air intake pipe 1, two guide rods 21 are inserted through the outer surface of the support plate 16, and an extrusion assembly is fixedly mounted on one end of the two guide rods 21 close to the air bag 18. The pressure plate 23, the other end of the two guide rods 21 is fixedly installed with a top plate 22, the top plate 22 is against the outer periphery of the eccentric wheel 15, the outer surface of the guide rod 21 is sleeved with a reset spring 24, the reset spring 24 is arranged between the support plate 16 and the top plate 22, the first installation box 2 is installed with an adsorption mechanism inside, the adsorption mechanism includes a first electrostatic dust absorption plate 11 and a second electrostatic dust absorption plate 12 fixedly installed inside the first installation box 2, the first electrostatic dust absorption plate 11 and the second electrostatic dust absorption plate 12 are respectively arranged on the inner and outer sides of the filter belt 6, the outer surface of the first electrostatic dust absorption plate 11 away from the second roller 5 is fixedly installed with a baffle 10, the baffle 10 is used to guide the airflow blown out and sucked in from the through hole 8.

[0037] When the second roller 5 rotates, the eccentric wheel 15 is driven to rotate through the support tube 7, so that the eccentric wheel 15 continuously pushes the top plate 22 to move, so that the top plate 22 continuously squeezes the airbag 18 through the guide rod 21 and the squeezing plate 23, and then cooperates with the elastic force of the reset spring 24 to enable the airbag 18 to be continuously opened and closed, and the second roller 5 is continuously pumped and exhausted through the conduit 19 and the rotary joint 20, so that the second roller 5 continuously blows and exhausts the filter holes on the rotating filter belt 6 through the through hole 8. When blowing air, the outer side of the filter belt 6 adheres to the filter hole 8. The dust will be blown to the second electrostatic dust collecting plate 12, so that the second electrostatic dust collecting plate 12 absorbs the blown dust; when exhausting air, the dust adhered to the inner side of the filter belt 6 will be sucked to the first electrostatic dust collecting plate 11, so that the first electrostatic dust collecting plate 11 absorbs the sucked dust. The first electrostatic dust collecting plate 11 and the second electrostatic dust collecting plate 12 absorb the dust inside and outside the filter belt 6, which can effectively clean the surface of the filter belt 6 and prevent the filter holes on the filter belt 6 from being blocked by dust, thereby affecting the filtering effect of the air.

[0038] In this embodiment, the first installation box 2 has dust discharge ports 13 extending through the bottom thereof near the first and second electrostatic dust collecting plates 11 and 12 , and a dust receiving box 14 is detachably mounted on the bottom of the first installation box 2 near the dust discharge ports 13 .

[0039] When it is necessary to clean the dust on the surface of the first electrostatic dust collecting plate 11 and the second electrostatic dust collecting plate 12, the power supply of the first electrostatic dust collecting plate 11 and the second electrostatic dust collecting plate 12 is disconnected, so that the dust adsorbed on the surface of the first electrostatic dust collecting plate 11 and the second electrostatic dust collecting plate 12 falls into the ash receiving box 14 through the ash discharge port 13, so that the dust can be collected and cleaned.

[0040] In this embodiment, an air duct 9 is fixedly installed on the bottom wall of the first installation box 2, and the air duct 9 is inserted into the interior of the second drum 5. A strip air duct is opened through the outer surface of the air duct 9 along its axial direction, and the strip air duct is arranged in the direction of the first electrostatic dust collector 11.

[0041] When in use, the air duct 9 without the strip air duct outlet can block part of the through holes 8 on the second drum 5, so that the blowing and exhausting airflow can be concentrated at the strip air duct outlet, thereby increasing the airflow intensity and better cleaning the dust on the surface of the filter belt 6.

[0042] A method for using an air intake filter device based on a gas turbine comprises the following steps:

[0043] S1: Install the air inlet pipe 1 to the air inlet end of the gas turbine by connecting the flange 27;

[0044] S2: The incoming air is triple filtered through the dustproof net 26 and the double-layer filter belt 6 to prevent dust in the air from entering the gas turbine;

[0045] S3: The first roller 4 is driven to rotate by the driving motor 25, so that the first roller 4 drives the filter belt 6 and the second roller 5 to rotate, so that the filter belt 6 as a whole can filter the air.

[0046] From the above description, it can be seen that the above-mentioned embodiment of the present invention achieves the following technical effects: when in use, the intake pipe 1 is installed at the intake end of the gas turbine by connecting the flange 27. When the air is taken in, the dustproof net 26 and the double-layer filter belt 6 can perform triple filtration on the incoming air, which can effectively prevent dust in the air from entering the gas turbine, and prevent dust particles in the air from causing wear and damage to the key components inside the gas turbine, thereby reducing the efficiency and life of the gas turbine;

[0047] The first roller 4 is driven to rotate by the driving motor 25, so that the first roller 4 can drive the filter belt 6 and the second roller 5 to rotate, so that the filter belt 6 as a whole can filter the air;

[0048] When the second roller 5 rotates, the eccentric wheel 15 is driven to rotate through the support tube 7, so that the eccentric wheel 15 continuously pushes the top plate 22 to move, so that the top plate 22 continuously squeezes the airbag 18 through the guide rod 21 and the squeezing plate 23, and then cooperates with the elastic force of the reset spring 24 to enable the airbag 18 to be continuously opened and closed, and the second roller 5 is continuously pumped and exhausted through the conduit 19 and the rotary joint 20, so that the second roller 5 continuously blows and exhausts the filter holes on the rotating filter belt 6 through the through hole 8. When blowing air, the outer side of the filter belt 6 adheres to the filter hole 8. The dust will be blown to the second electrostatic dust collecting plate 12, so that the second electrostatic dust collecting plate 12 absorbs the blown dust; when exhausting air, the dust adhered to the inner side of the filter belt 6 will be sucked to the first electrostatic dust collecting plate 11, so that the first electrostatic dust collecting plate 11 absorbs the sucked dust. The first electrostatic dust collecting plate 11 and the second electrostatic dust collecting plate 12 absorb the dust inside and outside the filter belt 6, which can effectively clean the surface of the filter belt 6 and prevent the filter holes on the filter belt 6 from being blocked by dust, thereby affecting the filtering effect of the air.

[0049] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. An air intake filter device based on a gas turbine, comprising an air intake pipe (1), characterized in that: The first installation box (2) and the second installation box (3) are respectively and symmetrically fixedly installed on the outer surfaces of the opposite sides of the air intake pipe (1); the side of the first installation box (2) away from the air intake pipe (1) is an open structure; the second roller (5) and the first roller (4) are respectively rotatably installed between the top wall and the bottom wall of the first installation box (2) and the second installation box (3); the outer surfaces of the second roller (5) and the first roller (4) are sleeved with a filter belt (6); the outer surface of the filter belt (6) is evenly penetrated with a plurality of filter holes; the air intake pipe (1) 1) Openings for the filter belt (6) to pass through are provided on the outer surfaces close to the first installation box (2) and the second installation box (3); the second roller (5) is a hollow structure, and a plurality of through holes (8) connected to the interior of the second roller (5) are evenly provided on the outer circumference of the second roller (5); a support tube (7) connected to the interior of the second roller (5) is fixedly installed on the top of the second roller (5); the support tube (7) passes through the upper surface of the first installation box (2) and is rotatably installed therewith; and a blowing and suction mechanism is installed on the air inlet pipe (1) and the top of the first installation box (2).

2. The gas turbine-based air intake filter device according to claim 1, characterized in that: The blowing and suction mechanism comprises a fixing plate (17) fixedly mounted on the top end of the air inlet pipe (1); an air bag (18) is fixedly mounted on the outer surface of the fixing plate (17) close to the first installation box (2); a rotating joint (20) connected to the interior of the support tube (7) is mounted on the top end of the support tube (7); a mutually conducting conduit (19) is mounted between the air bag (18) and the support tube (7) via the rotating joint (20); and an extrusion assembly is mounted between the top of the first installation box (2) and the support tube (7).

3. The gas turbine-based air intake filter device according to claim 2, characterized in that: The extrusion assembly comprises an eccentric wheel (15) fixedly mounted on the outer surface of the top end of the support tube (7); a support plate (16) is fixedly mounted on the top end of the intake pipe (1); two guide rods (21) are inserted through the outer surface of the support plate (16); an extrusion plate (23) is fixedly mounted on one end of the two guide rods (21) close to the airbag (18); a top plate (22) is fixedly mounted on the other end of the two guide rods (21); the top plate (22) abuts against the outer periphery of the eccentric wheel (15).

4. The gas turbine-based air intake filter device according to claim 3, characterized in that: The outer surface of the guide rod (21) is sleeved with a return spring (24), and the return spring (24) is arranged between the support plate (16) and the top plate (22).

5. The gas turbine-based air intake filter device according to claim 1, characterized in that: An adsorption mechanism is installed inside the first installation box (2), and the adsorption mechanism comprises a first electrostatic dust absorption plate (11) and a second electrostatic dust absorption plate (12) fixedly installed inside the first installation box (2), the first electrostatic dust absorption plate (11) and the second electrostatic dust absorption plate (12) are respectively arranged on the inner and outer sides of the filter belt (6), and a baffle (10) is fixedly installed on the outer surface of the first electrostatic dust absorption plate (11) away from the second roller (5).

6. The gas turbine-based air intake filter device according to claim 5, characterized in that: The first installation box (2) is provided with an ash discharge port (13) at the bottom near the first electrostatic dust suction plate (11) and the second electrostatic dust suction plate (12), and an ash receiving box (14) is detachably installed at the bottom of the first installation box (2) near the ash discharge port (13).

7. The gas turbine-based air intake filter device according to claim 6, characterized in that: An air duct (9) is fixedly mounted on the bottom wall of the first mounting box (2), the air duct (9) is inserted into the interior of the second drum (5), and a strip-shaped air duct opening is provided through the outer surface of the air duct (9) along the axial direction thereof, the strip-shaped air duct opening is arranged in the direction of the first electrostatic dust collecting plate (11).

8. The gas turbine-based air intake filter device according to claim 1, characterized in that: A driving motor (25) is fixedly mounted on the top of the second installation box (3); the output end of the driving motor (25) passes through the top wall of the second installation box (3) and is fixedly mounted to the rotation center of the first roller (4).

9. The gas turbine-based air intake filter device according to claim 1, characterized in that: A dust screen (26) is fixedly mounted on the inner wall of the air inlet end of the air inlet pipe (1), and a connecting flange (27) is fixedly mounted on the end of the air outlet end of the air inlet pipe (1).

10. A method for using an air intake filter device based on a gas turbine, characterized in that: An air intake filter device based on a gas turbine according to any one of claims 1 to 9 is used, comprising the following steps: S1: Installing the air inlet pipe (1) at the air inlet end of the gas turbine by connecting the flange (27); S2: The incoming air is triple filtered through the dustproof net (26) and the double-layer filter belt (6) to prevent dust in the air from entering the gas turbine; S3: The first roller (4) is driven to rotate by a driving motor (25), so that the first roller (4) drives the filter belt (6) and the second roller (5) to rotate, so that the filter belt (6) as a whole can filter the air.

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