Air filtering device for gas turbine

Abstract

The utility model discloses an air filtering device for a gas turbine, and particularly relates to the technical field of air filtering, the air filtering device comprises a supporting base, the top of the supporting base is fixedly connected with an air duct, the right end of the air duct is fixedly connected with a fixing ring, the inner surface of the air duct is fixedly connected with a filtering assembly, and an inner cavity of the air duct is provided with a cleaning assembly. A dust collection assembly is arranged at the bottom of the air duct, and damping shock absorbers are fixedly installed at the four corners of the bottom of the supporting base correspondingly. According to the air filtering device for the gas turbine, attachments on the surface of the filtering net can be scraped off in the equipment operation process by designing the cleaning assembly, and the situation that in the long-time equipment operation process, impurities in air block meshes of the filtering net, and the filtering effect is affected is prevented; and by designing the dust collection assembly, filtered objects scraped off in the inner cavity of the air duct can be sucked and collected in the process that the equipment stops running, and treatment by workers is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of air filtering, in particular to an air filtering device for a gas turbine. Background Art

[0002] A gas turbine is a device that uses fuel gas as fuel and converts the high-temperature and high-pressure gas generated by its combustion into mechanical energy. It is mainly composed of a compressor, a combustion chamber and a turbine. The gas turbine compresses the air to a high-pressure state through a compressor, and then mixes the high-pressure air with fuel and burns it in the combustion chamber to produce high-temperature and high-pressure fuel gas. These gases drive the turbine to rotate through the turbine, thereby driving external equipment such as compressors and generators to work, thereby generating electricity or providing power.

[0003] Chinese patent document CN217602784U discloses an air filtration energy-saving purification device for a gas turbine, including a supporting base, a plurality of shock-absorbing components are arranged at the bottom, a support is detachably connected at the top, an outer filter chamber is fixedly connected at the top of the support, the outer filter chamber is composed of six steel chrome grid plates, and its outer surface is wrapped with fiber felt, and the inner surface is attached with non-woven fabric, an ultraviolet sterilization lamp is arranged inside the non-woven fabric, an inner filter chamber is arranged inside the outer filter chamber, the inner filter chamber is composed of six bamboo carbon fiber filter nets, and a folded filter element is arranged inside, the bottom end of the folded filter element is closed, and the top end is connected with a conveying pipeline, two mesh plates are arranged in the conveying pipeline, and activated carbon is filled between the two mesh plates, and the top end of the conveying pipeline runs through the inner and outer filter chambers and is fixedly connected with a telescopic bellows, and a quick connector is arranged at the tail end of the telescopic bellows. The utility model can perform multi-stage filtration and purification treatment on air, and the overall disassembly and replacement is faster, and it is convenient to connect with the gas turbine system, which is more practical.

[0004] The above patent document can filter the air entering the gas turbine, but the attachments on the filter net cannot be cleaned during the operation of the above equipment, which can easily cause the filter net to be blocked, thereby affecting the overall filtering effect of the device. When solving the above problem, it is also necessary to solve the collection of the filtered material to avoid the aggregation of the filtered material after cleaning and affect the operation of the equipment. Utility Model Content

[0005] The main purpose of the utility model is to provide an air filter device for a gas turbine, which can effectively solve the problems of cleaning the filter screen and collecting the filtered objects.

[0006] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0007] An air filtering device for a gas turbine comprises a supporting base, a wind tube fixedly connected to the top of the supporting base, a fixing ring fixedly connected to the right end of the wind tube, a filtering assembly fixedly connected to the inner surface of the wind tube, a cleaning assembly provided in the inner cavity of the wind tube, a retaining net fixedly connected to the left side of the inner surface of the wind tube, a dust collecting assembly provided at the bottom of the wind tube, and damping shock absorbers fixedly installed at the four corners of the bottom of the supporting base.

[0008] Preferably, the filter assembly comprises a fixing plate, an outer surface of the fixing plate is fixedly connected to an inner surface of the air cylinder, and a filter screen is fixedly connected to the inner surface of the fixing plate.

[0009] Preferably, the cleaning assembly includes a support frame, the outer surface of the support frame is fixedly connected to the inner surface of the wind tube, the annular inner surface of the support frame is rotatably connected to a connecting column, the left end of the connecting column is fixedly connected to a wind impeller, the right end of the connecting column is fixedly connected to a rotating ring, and the outer surface of the rotating ring is fixedly connected to a plurality of evenly distributed scrapers.

[0010] Preferably, the dust suction assembly includes pipe one, the top of pipe one is fixedly connected to the bottom of the wind cylinder, an air valve is installed on the outer surface of pipe one, an air pump is fixedly installed on the left end of the support base, pipe two is fixedly connected to the left end of the air pump, a dust storage box is fixedly connected to the left end of pipe two, a protective door is rotatably connected to the left end of the dust storage box, a plurality of evenly distributed air holes are opened at the front end of the dust storage box, and a dustproof net is fixedly connected to the inner surface of the air hole.

[0011] Preferably, the scraper is in contact with the surface of the filter screen.

[0012] Preferably, a plurality of threaded holes are formed at the right end of the fixing ring.

[0013] Preferably, the second pipe passes through the right end of the dust storage box and extends into the inner cavity of the dust storage box.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] 1. The cleaning component of the utility model can scrape off the attachments on the surface of the filter screen during the operation of the equipment, so as to prevent the impurities in the air from clogging the mesh of the filter screen and affecting the filtering effect during the long-term operation of the equipment.

[0016] 2. The utility model can absorb and collect the filtered materials scraped from the inner cavity of the wind tube when the equipment stops running by means of the dust suction component, and uniformly suck them into the dust storage box for storage, so that the subsequent staff can clean the filtered materials, thereby improving the use efficiency of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 It is a schematic cutaway diagram of the overall structure of the utility model;

[0019] Figure 3 This is a schematic diagram of the overall structure of the utility model from another perspective;

[0020] Figure 4 For the utility model Figure 2 The enlarged schematic diagram at A in the middle;

[0021] Figure 5 For the utility model Figure 2 Enlarged schematic diagram of point B in the middle.

[0022] In the figure: 1. support base; 2. air cylinder; 3. fixing ring; 4. filter assembly; 41. fixing plate; 42. filter net; 5. cleaning assembly; 51. support frame; 52. connecting column; 53. wind impeller; 54. rotating ring; 55. scraper; 6. baffle; 7. dust suction assembly; 71. pipe 1; 72. air valve; 73. vacuum pump; 74. pipe 2; 75. dust storage box; 76. protective door; 77. air vent; 78. dust net; 8. damping shock absorber. DETAILED DESCRIPTION

[0023] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0024] The gas turbine is a conventional design of the prior art. The compressor inside it inhales air from the external atmospheric environment and compresses it step by step through the axial flow compressor to increase the pressure. At the same time, the air temperature is also increased accordingly. The compressed air is pressed into the combustion chamber to mix with the injected fuel and burn to generate high-temperature and high-pressure gas. This solution is mainly installed at the air inlet of the gas turbine to filter the air and thus improve the conversion effect of the equipment, and to scrape off the attachments on the filter plate through the airflow generated by the inhaled air.

[0025] like Figure 2 and Figure 4As shown, an air filtering device for a gas turbine comprises a supporting base 1, a wind tube 2 is fixedly connected to the top of the supporting base 1, a fixing ring 3 is fixedly connected to the right end of the wind tube 2, a plurality of threaded holes are opened at the right end of the fixing ring 3, a filter assembly 4 is fixedly connected to the inner surface of the wind tube 2, the filter assembly 4 comprises a fixing plate 41, an outer surface of the fixing plate 41 is fixedly connected to the inner surface of the wind tube 2, a filter screen 42 is fixedly connected to the inner surface of the fixing plate 41, and the main purpose of the filter screen 42 is to filter impurities in the air to prevent impurities in the air from entering the equipment, causing wear to the internal parts of the equipment, and reducing the service life of the equipment.

[0026] Further, such as Figure 2 and Figure 4 As shown, the inner cavity of the wind tube 2 is provided with a cleaning assembly 5, and the cleaning assembly 5 includes a support frame 51, the outer surface of the support frame 51 is fixedly connected to the inner surface of the wind tube 2, and the annular inner surface of the support frame 51 is rotatably connected to a connecting column 52, the left end of the connecting column 52 is fixedly connected to a wind impeller 53, and the right end of the connecting column 52 is fixedly connected to a rotating ring 54, and the outer surface of the rotating ring 54 is fixedly connected to a plurality of evenly distributed scrapers 55, and the scrapers 55 are in contact with the surface of the filter screen 42;

[0027] When the compressor inside the gas turbine inhales air from the external atmospheric environment, airflow is generated, causing the impeller 53 to rotate, and then the connecting column 52 connected thereto rotates, and the rotating ring 54 at the right end of the connecting column 52 rotates synchronously. At this time, the scraper 55 on the outer surface of the rotating ring 54 will scrape off the attachments on the filter screen 42, thereby achieving the purpose of cleaning the filter screen 42.

[0028] like Figure 1 and Figure 5 As shown, a retaining net 6 is fixedly connected to the left side of the inner surface of the air cylinder 2, a dust collecting assembly 7 is arranged at the bottom of the air cylinder 2, the dust collecting assembly 7 comprises a pipe 1 71, the top of the pipe 1 71 is fixedly connected to the bottom of the air cylinder 2, an air valve 72 is installed on the outer surface of the pipe 1 71, an air pump 73 is fixedly installed on the left end of the support base 1, a pipe 2 74 is fixedly connected to the left end of the air pump 73, a dust storage box 75 is fixedly connected to the left end of the pipe 2 74, a protective door 76 is rotatably connected to the left end of the dust storage box 75, a plurality of evenly distributed air holes 77 are opened at the front end of the dust storage box 75, a dustproof net 78 is fixedly connected to the inner surface of the air hole 77, the pipe 2 74 passes through the right end of the dust storage box 75 and extends into the inner cavity of the dust storage box 75;

[0029] The air valve 72 used in this solution is of conventional design in the prior art, and its main function is to regulate or prevent the flow of gas. It is usually composed of a rotatable or movable valve.

[0030] During the operation of the equipment, the air valve 72 is in a closed state. When it is necessary to collect and clean the filtrate in the inner cavity of the air duct 2, the gas turbine needs to be shut down, and then the air valve 72 is opened and the vacuum pump 73 is started. The input end of the vacuum pump 73 extracts the attachments in the inner cavity of the air duct 2 through the pipe 1 71, and the attachments are sucked into the dust storage box 75 through the pipe 2 74 through the output end of the vacuum pump 73 for collection. The air vent 77 opened at the front end of the dust storage box 75 is used to balance the air pressure inside the dust storage box 75, and the dustproof net 78 can retain the filtrate inside the dust storage box 75, which is convenient for subsequent cleaning by the staff.

[0031] like Figure 3 As shown, damping shock absorbers 8 are fixedly installed at the four corners of the bottom of the support base 1. The damping shock absorber 8 used in this solution is a conventional design of the prior art, which is mainly composed of two parts: a spring and a damper. It reduces the vibration amplitude of the structure or equipment by consuming or transferring vibration energy, thereby reducing the impact of vibration on the surrounding environment or damage to the equipment.

[0032] The working principle of the utility model is as follows: during the operation of the equipment, the compressor inside the gas turbine generates air flow when it inhales air from the external atmospheric environment, thereby causing the impeller 53 to rotate, and then causing the connecting column 52 connected thereto to rotate, and the rotating ring 54 at the right end of the connecting column 52 rotates synchronously, at which time the scraper 55 on the outer surface of the rotating ring 54 will scrape off the attachments on the filter screen 42; when the equipment stops running, the air valve 72 is opened and the vacuum pump 73 is started, and the input end of the vacuum pump 73 extracts the attachments in the inner cavity of the air duct 2 through the pipe 1 71, and the attachments are sucked into the dust storage box 75 through the output end of the vacuum pump 73 through the pipe 2 74 for collection.

[0033] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. An air filter device for a gas turbine, comprising a support base (1), characterized in that: The top of the support base (1) is fixedly connected to a wind tube (2), the right end of the wind tube (2) is fixedly connected to a fixing ring (3), the inner surface of the wind tube (2) is fixedly connected to a filter assembly (4), the inner cavity of the wind tube (2) is provided with a cleaning assembly (5), the left side of the inner surface of the wind tube (2) is fixedly connected to a blocking net (6), the bottom of the wind tube (2) is provided with a dust collection assembly (7), and damping shock absorbers (8) are fixedly installed at the four corners of the bottom of the support base (1).

2. The air filter device for a gas turbine according to claim 1, characterized in that: The filter assembly (4) comprises a fixing plate (41), the outer surface of the fixing plate (41) is fixedly connected to the inner surface of the air cylinder (2), and the inner surface of the fixing plate (41) is fixedly connected to a filter screen (42).

3. The air filter device for a gas turbine according to claim 1, characterized in that: The cleaning assembly (5) comprises a support frame (51), the outer surface of the support frame (51) is fixedly connected to the inner surface of the wind tube (2), the annular inner surface of the support frame (51) is rotatably connected to a connecting column (52), the left end of the connecting column (52) is fixedly connected to a wind impeller (53), the right end of the connecting column (52) is fixedly connected to a rotating ring (54), and the outer surface of the rotating ring (54) is fixedly connected to a plurality of evenly distributed scrapers (55).

4. The air filter device for a gas turbine according to claim 1, characterized in that: The dust suction assembly (7) comprises a pipe 1 (71), the top of the pipe 1 (71) is fixedly connected to the bottom of the air cylinder (2), an air valve (72) is installed on the outer surface of the pipe 1 (71), an air pump (73) is fixedly installed on the left end of the support base (1), the left end of the air pump (73) is fixedly connected to a pipe 2 (74), the left end of the pipe 2 (74) is fixedly connected to a dust storage box (75), the left end of the dust storage box (75) is rotatably connected to a protective door (76), a front end of the dust storage box (75) is provided with a plurality of evenly distributed air holes (77), and the inner surface of the air hole (77) is fixedly connected to a dustproof net (78).

5. The air filter device for a gas turbine according to claim 3, characterized in that: The scraper (55) is in contact with the surface of the filter screen (42).

6. The air filter device for a gas turbine according to claim 1, characterized in that: The right end of the fixing ring (3) is provided with a plurality of threaded holes.

7. The air filter device for a gas turbine according to claim 4, characterized in that: The second pipe (74) passes through the right end of the dust storage box (75) and extends into the inner cavity of the dust storage box (75).

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