Gas inlet filter of gas turbine

Abstract

The utility model discloses a gas turbine inlet air filter, which comprises a filter cartridge, support seats B symmetrically welded on the outer wall of the filter cartridge, and a filter screen plate inserted in the filter cartridge, an air guide assembly is arranged outside the filter cartridge, and a self-cleaning assembly is arranged in the filter cartridge; and the air guide assembly comprises a support ring welded on the outer wall of the filter cartridge. The filter screen plate is used for filtering and cleaning air, an air inlet connector of the air inlet pipe is communicated and connected with an air blower carried by the gas turbine through an external pipeline and an electromagnetic valve, when the filter screen plate needs to be cleaned, the air blower is started through external control equipment, pressurized air passes through an air blowing cover, and the air blowing cover is used for blowing air. The back-flushing cleaning device has the advantages that good self-cleaning performance is achieved, accumulation of dust on the surface of the filter screen plate is reduced, good air permeability is achieved, and the labor amount of workers is reduced.

Description

TECHNICAL FIELD

[0001] The utility model belongs to filter technical field, concretely relates to a gas turbine intake filter. BACKGROUND

[0002] As an efficient energy conversion device, the performance of the gas turbine is highly dependent on the cleanliness of the intake system. During the operation of the gas turbine, if the particulate matter in the air directly enters the compressor without effective filtration, it will cause blade wear, efficiency decline and shortened operation life. Therefore, the reliability of the intake filter directly affects the overall operation efficiency of the gas turbine;

[0003] In the prior art, the patent with publication number CN219509721U discloses a gas turbine intake filter using an elastic clamping structure, which solves the problem of installation stability, but still has significant defects:

[0004] Firstly, a dense dust layer is easily formed on the surface of the filter screen after long-term operation, which causes the pressure difference to rise and the air permeability to drop sharply, and frequent shutdown and disassembly for cleaning are required, resulting in increased operation and maintenance costs;

[0005] Secondly, the traditional backwashing system mainly uses single-direction pulse blowing, which has problems such as insufficient air flow coverage and cleaning blind area in the edge area of the filter screen. Therefore, it is necessary to design a gas turbine intake filter to solve the above problems. UTILITY MODEL CONTENTS

[0006] The utility model aims to provide a gas turbine intake filter to solve the problems raised in the background art.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a gas turbine intake filter, comprising a filter cartridge, a support seat B symmetrically welded to the outer wall of the filter cartridge, and a filter screen plate inserted into the inside of the filter cartridge, a gas guide assembly is installed on the outside of the filter cartridge, and a self-cleaning assembly is installed in the inside of the filter cartridge;

[0008] The gas guide assembly comprises a support ring welded to the outer wall of the filter cartridge, an air inlet pipe fixedly connected to the surface of the support ring, and a gas blowing cover circumferentially and equidistantly connected to the surface of the air inlet pipe;

[0009] The self-cleaning assembly comprises a backflushing cleaning pipe installed in the inside of the filter cartridge, and a gas blowing hole A and a gas blowing hole B opened on the surface of the backflushing cleaning pipe.

[0010] Preferably, the surface of the support ring is fixedly connected to a limiting frame, and the limiting frame is pressed onto the surface of the air inlet pipe.

[0011] Preferably, the bottom of the support ring is fixedly connected with reinforcing ribs, and the reinforcing ribs are circumferentially and equidistantly arranged on the outer wall of the filter cartridge.

[0012] Preferably, the air blowing cover penetrates the filter cartridge, and the penetrating end of the air blowing cover extends to a position below the filter screen plate.

[0013] Preferably, the surface of the air inlet pipe is in conductive connection with an air inlet joint, and one of the air blowing covers and the backflushing pipe of the air inlet pipe are in conductive connection.

[0014] Preferably, the backflushing pipe is located at a position below the filter screen plate, and the backflushing pipe is fixedly connected with the filter cartridge through the bottom support.

[0015] Preferably, a compression ring is inserted into the open top of the filter cartridge, the surface of the compression ring is welded with a support seat A, and the support seat A and a support seat B are corresponding.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] 1. The filter cartridge is externally provided with an air guide assembly, and the filter cartridge is internally provided with a self-cleaning assembly. The filter screen plate is used for filtering and cleaning air. The air inlet joint of the air inlet pipe is in conductive connection with a blower carried by a gas turbine through an external pipeline and an electromagnetic valve. When the filter screen plate needs to be cleaned, the blower is started through an external control device. The gas after pressure increase is blown to the inner surface of the filter screen plate through the air blowing cover, the air blowing holes A and the air blowing holes B on the surface of the backflushing pipe, has good self-cleaning performance, reduces the accumulation of dust on the surface of the filter screen plate, has good air permeability, and reduces the labor of workers.

[0018] 2. The compression ring is inserted into the open position of the filter cartridge, and the filter screen plate is extruded and fixed. The support seat A and the support seat B are corresponding, and then a locking piece is used for installation and fixation. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a whole structure schematic view of the utility model;

[0020] Figure 2 It is a filter cartridge and air inlet pipe structure schematic view of the utility model;

[0021] Figure 3 It is a filter cartridge and backflushing pipe structure schematic view of the utility model;

[0022] Figure 4 It is another view structure schematic view of the filter cartridge and the backflushing pipe of the utility model.

[0023] In the figure: 1, filter cartridge; 2, support ring; 3, limit frame; 4, air inlet pipe; 5, filter screen plate; 6, pressing ring; 7, support seat A; 8, support seat B; 9, back flushing cleaning pipe; 10, air blowing hole A; 11, air blowing hole B; 12, air blowing cover; 13, bottom support; 14, reinforcing rib. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0025] Embodiment one: please refer to Figures 1 to 4 The present application provides a kind of gas turbine intake filter technical solutions: including filter cartridge 1, support seat B 8 being symmetrically welded on the outer wall of filter cartridge 1, and filter screen plate 5 being inserted in the inside of filter cartridge 1, the outside of filter cartridge 1 is equipped with air guide component, the inside of filter cartridge 1 is equipped with self-cleaning component;

[0026] Air guide component includes support ring 2 welded on the outer wall of filter cartridge 1, air inlet pipe 4 fixedly connected on the surface of support ring 2, air blowing cover 12 circumferentially equidistantly connected on the surface of air inlet pipe 4.

[0027] Self-cleaning component includes back flushing cleaning pipe 9 installed in the inside of filter cartridge 1, air blowing hole A 10 and air blowing hole B 11 opened on the surface of back flushing cleaning pipe 9.

[0028] Limit frame 3 is fixedly connected on the surface of support ring 2, limit frame 3 is pressed on the surface of air inlet pipe 4, reinforcing rib 14 is fixedly connected on the bottom position of support ring 2, multiple reinforcing ribs 14 are circumferentially equidistantly arranged on the outer wall of filter cartridge 1, air blowing cover 12 penetrates filter cartridge 1, and the penetrating end of air blowing cover 12 extends to the position below filter screen plate 5, air inlet pipe 4 is in communication with air inlet connector on the surface, one of air blowing cover 12 and back flushing cleaning pipe 9 of air inlet pipe 4 is in communication, back flushing cleaning pipe 9 is located at the position below filter screen plate 5, and back flushing cleaning pipe 9 is fixedly connected with filter cartridge 1 through bottom support 13.

[0029] From the above description, the utility model has the following beneficial effects: The filter cartridge 1 is externally provided with a gas guiding assembly, and internally provided with a self-cleaning assembly, the filter screen plate 5 is used for filtering and cleaning air, the air inlet joint of the air inlet pipe 4 is connected with the air blower carried by the gas turbine through an external pipeline and a solenoid valve, when the filter screen plate 5 needs to be cleaned, the air blower is started through an external control device, the gas after pressurization is blown to the inner surface of the filter screen plate 5 through the air blowing cover 12 and the air blowing holes A10 and B11 on the surface of the backflushing cleaning pipe 9, the filter screen plate 5 has good self-cleaning performance, reduces the accumulation of dust on the surface of the filter screen plate 5, has good air permeability, and reduces the labor of workers.

[0030] Embodiment two: please refer to Figures 1 to 4 As shown in the drawings, on the basis of embodiment one, the utility model provides a kind of gas turbine intake filter technical scheme: the top opening position of filter cartridge 1 is inserted with compression ring 6, support seat A7 is welded on the surface of compression ring 6, support seat A7 and support seat B8 correspond.

[0031] Using the above technical scheme, compression ring 6 is inserted in the opening position of filter cartridge 1, and filter screen plate 5 is extruded and fixed, support seat A7 and support seat B8 correspond, then using locking piece installation fixed can.

[0032] The working principle and use process of the utility model: the filter cartridge 1 is externally provided with a gas guiding assembly, and internally provided with a self-cleaning assembly, the filter screen plate 5 is used for filtering and cleaning air, the air inlet joint of the air inlet pipe 4 is connected with the air blower carried by the gas turbine through an external pipeline and a solenoid valve, when the filter screen plate 5 needs to be cleaned, the air blower is started through an external control device, the gas after pressurization is blown to the inner surface of the filter screen plate 5 through the air blowing cover 12 and the air blowing holes A10 and B11 on the surface of the backflushing cleaning pipe 9, the filter screen plate 5 has good self-cleaning performance, reduces the accumulation of dust on the surface of the filter screen plate 5, has good air permeability, and reduces the labor of workers; compression ring 6 is inserted in the opening position of filter cartridge 1, and filter screen plate 5 is extruded and fixed, support seat A7 and support seat B8 correspond, then using locking piece installation fixed can.

[0033] It is to be noted that the relational terms herein, such as first and second, and the like, are used solely to distinguish one from another entity or action without necessarily requiring or implying any actual relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus. An element proceeded by "comprises... a" does not, without more constraints, exclude the existence of additional identical elements in the process, method, article, or apparatus that comprises the element.

[0034] The above description is merely intended to illustrate the technical solutions of the present application, but not to limit the present application. Other modifications or equivalent replacements to the technical solutions of the present application made by those skilled in the art shall be included in the scope of the claims of the present application, as long as these modifications or equivalent replacements do not depart from the spirit and scope of the technical solutions of the present application.

Claims

1. A gas turbine air intake filter comprising a filter cartridge (1), a support seat B (8) symmetrically welded to the outer wall of said filter cartridge (1), and a filter screen (5) inserted inside said filter cartridge (1), characterized in that: The filter cartridge (1) is externally provided with an air guide assembly, and internally provided with a self-cleaning assembly; The air guide assembly comprises a support ring (2) welded to the outer wall of the filter cartridge (1), an air inlet pipe (4) fixedly connected to the surface of the support ring (2), and air blowing covers (12) circumferentially and equidistantly connected to the surface of the air inlet pipe (4). The self-cleaning assembly comprises a back-flushing pipe (9) installed in the filter cartridge (1), and air blowing holes A (10) and B (11) formed in the surface of the back-flushing pipe (9).

2. A gas turbine air intake filter according to claim 1, characterised in that: The surface of the support ring (2) is fixedly connected with a limiting frame (3), and the limiting frame (3) is pressed against the surface of the air inlet pipe (4).

3. A gas turbine air inlet filter according to claim 1, characterised in that: The bottom of the support ring (2) is fixedly connected with reinforcing ribs (14), and a plurality of the reinforcing ribs (14) are circumferentially and equidistantly arranged on the outer wall of the filter cartridge (1).

4. A gas turbine air inlet filter according to claim 1, characterised in that: The air blowing covers (12) penetrate through the filter cartridge (1), and the penetrating ends of the air blowing covers (12) extend to a position below the filter screen plate (5).

5. A gas turbine air inlet filter according to claim 1, characterised in that: The surface of the air inlet pipe (4) is conductively connected with an air inlet connector, and one of the air blowing covers (12) and the back-flushing pipe (9) of the air inlet pipe (4) are conductively connected.

6. A gas turbine air inlet filter according to claim 1, characterised in that: The back-flushing pipe (9) is located below the filter screen plate (5), and is fixedly connected with the filter cartridge (1) through a bottom support (13).

7. A gas turbine air inlet filter according to claim 1, characterised in that: A pressing ring (6) is inserted into the top opening position of the filter cartridge (1), the surface of the pressing ring (6) is welded with a support seat A (7), and the support seat A (7) and a support seat B (8) are corresponding.

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