A large flow gas turbine intake device capable of filtering impurities and a method of using the same

Abstract

The application relates to the technical field of large-air-volume gas turbine air intake devices, in particular to a large-air-volume gas turbine air intake device capable of filtering impurities and a use method thereof. The device comprises supporting legs, a chassis is arranged on the supporting legs, an air intake bin with a top opening is arranged on the chassis, an air intake bin cover is arranged at the air intake bin top opening, a rotating shaft is rotatably arranged in the air intake bin, an air filter element for filtering impurities in the air intake bin is arranged on the rotating shaft, the air filter element is sealed at the top end and opened at the bottom end, the top end is fixed with the rotating shaft, and the bottom end is rotatably arranged on the inner bottom wall of the air intake bin; air intake pipelines and air outlet pipelines are arranged on the supporting legs. When the filter element is used, the filter element can timely clean the impurities adhered to the surface of the filter element, the filtering effect of the filter element is improved, the air can be effectively filtered, the excessive impurities on the surface of the filter element can be prevented from causing the air intake and outlet to be blocked and the air input into the gas turbine to be reduced, the filter element does not need to be disassembled and replaced and cleaned, and the maintenance is convenient.

Description

Technical Field

[0001] This invention relates to the technical field of large-volume gas turbine air intake devices, specifically a large-volume gas turbine air intake device capable of filtering impurities and its usage method. Background Technology

[0002] A high-volume gas turbine is an internal combustion power machine that uses a continuously flowing gas as the working fluid to drive a high-speed rotating impeller, converting the energy of fuel into useful work. It is a type of rotary impeller thermal engine. The gas turbine's intake system draws air from the air and delivers it to the turbine for reaction. The filtration accuracy of the gas turbine's intake system directly affects the turbine's service life.

[0003] Existing gas turbine intake filtration devices mostly employ two types of gas inlet structures:

[0004] The first type of external air intake filtration structure involves a filter element with a cavity. Air is drawn into the cavity of the filter element from the outside, and the air is filtered as it passes through. The air is then connected to the filter element cavity through a pipe, allowing clean gas to be supplied to the gas turbine. Large particulate impurities filtered out are adsorbed on the outer wall of the filter element.

[0005] The second type of internal air intake filtration structure involves setting up a filter element with a cavity, allowing air to be directly input into the filter element cavity. The gas will penetrate through the inner wall of the cavity and enter the external environment of the filter element. Then, the gas in the external environment of the filter element is collected and input into the gas turbine. Large particulate impurities after filtration remain in the filter element cavity.

[0006] Both of the above structures suffer from the inconvenience of disassembling the filter element during replacement and the difficulty in cleaning and maintaining it. As a result, after prolonged use, excessive impurities adhere to the surface of the filter element, clogging the filter pores. If not cleaned in time, the filtration effect of the filter element will deteriorate, and it will not be able to effectively filter the air. It can also easily cause air intake and exhaust obstruction, resulting in a reduction of the air input to the gas turbine, which can lead to serious accidents. To address this, we propose a high-volume gas turbine air intake device that can filter impurities and its usage method. Summary of the Invention

[0007] The purpose of this invention is to provide a high-volume gas turbine air intake device that can filter impurities and its usage method, in order to solve the problem mentioned in the background art that after long-term use, excessive impurities adhere to the surface of the filter element of the air intake device, clogging the filter pores. If it is not cleaned in time, the filtration effect of the filter element will deteriorate, and it will not be able to effectively filter the gas turbine air intake.

[0008] To achieve the above objectives, the present invention provides the following technical solution:

[0009] A high-volume gas turbine air intake device capable of filtering impurities includes a support leg, a base frame mounted on the support leg, an air intake chamber with a top opening mounted on the base frame, an air intake chamber cover mounted on the top opening of the air intake chamber, a rotating shaft rotatably mounted inside the air intake chamber, and an air filter element mounted on the rotating shaft for filtering impurities from the air entering the air intake chamber. The air filter element has a sealed top end and an open bottom end, with the top end fixed to the rotating shaft and the bottom end rotatably mounted on the bottom wall inside the air intake chamber.

[0010] The outrigger is equipped with an air intake pipe and an air outlet pipe. One end of the air intake pipe extends to the gap between the air intake chamber and the air filter element. The air intake pipe is used to introduce air into the air intake chamber. The base frame and the air intake chamber are provided with a ventilation channel that communicates with the inside of the air filter element. One end of the air outlet pipe is connected to the ventilation channel. The ventilation channel is used to transport the air that enters the air intake chamber and passes through the air filter element to the inside of the high-volume gas turbine.

[0011] The air filter is equipped with a tapping mechanism for tapping and removing dust from the air filter.

[0012] As described above, a high-volume gas turbine air intake device that can filter impurities: a motor is installed on the air intake cover, and the output end of the motor is connected to a rotating shaft through a coupling. The motor is used to drive the rotating shaft to rotate.

[0013] As described above, a high-volume gas turbine air intake device that can filter impurities is provided with pressure gauges installed on the air intake pipe and the air outlet pipe, respectively, and the pressure gauges are used to detect the gas pressure in the air intake pipe and the air outlet pipe.

[0014] As described above, a high-volume gas turbine air intake device that can filter impurities: the outer diameter of the air filter element is adapted to the inner diameter of the air intake chamber, and there is a gap between the air filter element and the air intake chamber.

[0015] As described above, a high-volume gas turbine air intake device capable of filtering impurities includes a flapping mechanism comprising a bracket fixed to the bottom wall inside the air intake chamber and multiple drive gears fixed to a rotating shaft. Multiple driven gears are rotatably mounted on the bracket, and the driven gears mesh with the drive gears. Multiple fixed frames are provided on the bracket, and sliding grooves are provided on the fixed frames. A sliding plate is slidably engaged on the sliding grooves. A swing arm is provided between the sliding plate and the driven gears. The two ends of the swing arm are respectively hinged to the driven gears and the sliding plate. An arc-shaped plate is provided at one end of the sliding plate.

[0016] As described above, a high-volume gas turbine air intake device capable of filtering impurities includes: multiple drive gears vertically distributed at equal intervals on a rotating shaft, and multiple driven gears and fixed frames vertically distributed at equal intervals on a support, wherein the drive gears, driven gears, and fixed frames exist in pairs.

[0017] As described above, a high-volume gas turbine air intake device that can filter impurities: the outer dimensions of the arc-shaped plate are adapted to the inner dimensions of the air filter element, and a soft adhesive layer is fixedly adhered to the side surface of the arc-shaped plate near the inner wall of the air filter element.

[0018] A method for filtering impurities using a high-volume gas turbine intake device as described in any one of claims 1-7, comprising the following steps:

[0019] S1, the gas enters the air intake chamber through the air intake pipe and reaches the air filter element that reduces the flow rate. Large solid particles and liquid particles are separated from the gas after being filtered by the air filter element. Some of them accumulate at the bottom of the air intake chamber, and some adhere to the outer wall of the air filter element.

[0020] S2, the rotation of the shaft drives the air filter to rotate, generating centrifugal force to remove particulate impurities adhering to the surface of the air filter. The rotation of the shaft drives the drive gear to rotate, which in turn drives the driven gear to rotate, causing the swing arm to swing and pull the slide plate to move back and forth in the slide groove, which in turn drives the arc plate to move back and forth. During the rotation of the air filter, the plate beats the inner wall of the air filter, causing the particulate impurities adhering to the surface of the air filter to fall off.

[0021] S3: Clean gas, after being filtered to remove impurities, enters the inside of the air filter element, passes through the air vent at the bottom of the air filter element into the outlet pipe, and is then transported to the air inlet of the high-volume gas turbine through the outlet pipe.

[0022] Compared with the prior art, the beneficial effects of the present invention are: the present invention has a rotating shaft rotatably arranged inside the air intake chamber, and an air filter element for filtering impurities in the air intake chamber is arranged on the rotating shaft. The top end of the air filter element is sealed and the bottom end is open. The top end is fixed to the rotating shaft and the bottom end is rotatably installed on the bottom wall inside the air intake chamber.

[0023] The air filter element is equipped with a tapping mechanism, which includes a bracket, a drive gear, etc., for tapping the air filter element to remove dust.

[0024] Therefore, in this invention, when filtering impurities from the intake air of a large-volume gas turbine, the gas enters the intake chamber through the intake pipe and reaches the air filter element, which reduces the flow velocity. Large solid and liquid particles are separated from the gas after being filtered by the air filter element; some accumulate at the bottom of the intake chamber, while others adhere to the outer wall of the air filter element. At this time, the rotation of the shaft drives the air filter element to rotate, generating centrifugal force to remove the particulate impurities adhering to the surface of the air filter element. The rotation of the shaft drives the drive gear to rotate, which in turn drives the driven gear to rotate, causing the swing arm to swing and pull the slide plate to move back and forth in the slide groove, which in turn drives the arc plate to move back and forth in the air. During the rotation of the air filter element, the inner wall of the air filter element is patted, causing particulate impurities adhering to the surface of the air filter element to fall off. Thus, when the filter element is in use, the rotation of the shaft drives the air filter element to rotate, generating centrifugal force to throw off particulate impurities adhering to the surface of the air filter element. The patting mechanism also pats and removes dust from the air filter element, which can promptly clean the impurities adhering to its surface, improve the filtration effect of the filter element, and effectively filter the air. It can prevent excessive impurities on the surface of the filter element from obstructing the air in and out, thereby reducing the air input to the gas turbine. At the same time, it does not require the filter element to be disassembled and replaced for cleaning, making maintenance convenient. Attached Figure Description

[0025] Figure 1 This is a first-view structural schematic diagram of a high-volume gas turbine air intake device capable of filtering impurities and its usage method.

[0026] Figure 2 This is a second-view structural schematic diagram of a high-volume gas turbine air intake device capable of filtering impurities and its usage method.

[0027] Figure 3 This is a partial cross-sectional view of the air intake chamber and air filter element, illustrating a high-volume gas turbine air intake device capable of filtering impurities and its usage method.

[0028] Figure 4 This is a cross-sectional structural diagram of a high-volume gas turbine air intake device that can filter impurities and its usage method.

[0029] Figure 5 for Figure 4 A partially enlarged structural diagram.

[0030] Figure 6 This is a partial cross-sectional view of the air intake chamber and air filter element, illustrating a high-volume gas turbine air intake device capable of filtering impurities and its usage method.

[0031] Figure 7 This is a schematic diagram of the flapping mechanism of a high-volume gas turbine air intake device that can filter impurities and its usage method.

[0032] In the diagram: 1. Support leg; 2. Base frame; 3. Air intake chamber; 4. Air intake chamber cover; 5. Air intake pipe; 6. Air outlet pipe; 7. Pressure gauge; 8. Air filter; 9. Motor; 10. Rotating shaft; 11. Beating mechanism; 1101. Bracket; 1102. Drive gear; 1103. Driven gear; 1104. Fixing frame; 1105. Slide; 1106. Slide plate; 1107. Swing arm; 1108. Curved plate; 12. Ventilation duct. Detailed Implementation

[0033] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0034] Please see Figures 1 to 7 As an embodiment of the present invention, a high-volume gas turbine air intake device capable of filtering impurities includes a support leg 1, a base frame 2 on the support leg 1, an air intake chamber 3 with a top opening on the base frame 2, an air intake chamber cover 4 installed at the top opening of the air intake chamber 3, a rotating shaft 10 rotatably installed inside the air intake chamber 3, an air filter element 8 for filtering impurities from the air entering the air intake chamber 3 on the rotating shaft 10, the air filter element 8 having a sealed top end and an open bottom end, the top end being fixed to the rotating shaft 10, and the bottom end being rotatably installed on the bottom wall inside the air intake chamber 3.

[0035] The outrigger 1 is equipped with an air intake pipe 5 and an air outlet pipe 6. One end of the air intake pipe 5 extends to the gap between the air intake chamber 3 and the air filter element 8. The air intake pipe 5 is used to introduce air into the air intake chamber 3. The base frame 2 and the air intake chamber 3 are provided with a ventilation channel 12 that communicates with the air filter element 8. One end of the air outlet pipe 6 is connected to the ventilation channel 12. The ventilation channel 12 is used to transport the air that enters the air intake chamber 3 and passes through the air filter element 8 to the interior of the high-volume gas turbine.

[0036] The air filter element 8 is equipped with a tapping mechanism 11 for tapping and dust removal.

[0037] In this embodiment, gas enters the air intake chamber 3 through the air intake pipe 5 and reaches the air filter 8, which reduces the flow rate. Large solid and liquid particles are separated from the gas after being filtered by the air filter 8. Some of them accumulate at the bottom of the air intake chamber 3, while others adhere to the outer wall of the air filter 8. At this time, the rotation of the shaft 10 drives the air filter 8 to rotate, generating centrifugal force to remove the particulate impurities adhering to the surface of the air filter 8. The beating mechanism 11 is used to beat the air filter 8 to remove dust, causing the particulate impurities adhering to the surface of the air filter 8 to fall off. Thus, when the filter is in use, the centrifugal force generated by the rotation of the shaft 10 to drive the air filter 8 to rotate removes the particulate impurities adhering to the surface of the air filter 8, and the beating mechanism 11 beats the air filter 8 to remove dust, which can promptly clean the impurities adhering to its surface.

[0038] As a further embodiment of the present invention, a motor 9 is installed on the air intake cover 4. The output end of the motor 9 is connected to the rotating shaft 10 through a coupling. The motor 9 is used to drive the rotating shaft 10 to rotate.

[0039] In this embodiment, the motor 9 is started, and the motor 9 can drive the rotating shaft 10 to rotate automatically. The rotation of the rotating shaft 10 drives the air filter element 8 to rotate, generating centrifugal force. When the air filter element 8 filters impurities from the air, it can remove particulate impurities adhering to the surface of the air filter element 8, and can clean the impurities adhering to its surface in a timely manner.

[0040] As a further embodiment of the present invention, pressure gauges 7 are installed on the air inlet pipe 5 and the air outlet pipe 6 respectively, and the pressure gauges 7 are used to detect the gas pressure in the air inlet pipe 5 and the air outlet pipe 6 respectively.

[0041] In this embodiment, the pressure gauge 7 can detect the gas pressure entering the intake pipe 5 and the exhaust pipe 6 in a timely manner, so as to reasonably control the intake air flow rate.

[0042] As a further embodiment of the present invention, the outer diameter of the air filter element 8 is adapted to the inner diameter of the air intake chamber 3, and there is a gap between the air filter element 8 and the air intake chamber 3.

[0043] In this embodiment, the gap between the air filter element 8 and the air intake chamber 3 allows the air entering the air intake chamber 3 from the air intake pipe 5 to reach the gap between the air filter element 8 and the air intake chamber 3 as soon as possible before reaching the interior of the air filter element 8, thereby facilitating the filtration of impurities in the intake air through the air filter element 8.

[0044] As a further embodiment of the present invention, the tapping mechanism 11 includes a bracket 1101 fixed to the bottom wall inside the air intake chamber 3 and a plurality of drive gears 1102 fixed to the rotating shaft 10. A plurality of driven gears 1103 are rotatably mounted on the bracket 1101, and the driven gears 1103 mesh with the drive gears 1102. A plurality of fixing frames 1104 are provided on the bracket 1101, and a sliding groove 1105 is provided on the fixing frame 1104. A sliding plate 1106 is slidably engaged on the sliding groove 1105. A swing arm 1107 is provided between the sliding plate 1106 and the driven gears 1103. The two ends of the swing arm 1107 are respectively hinged to the driven gears 1103 and the sliding plate 1106. An arc-shaped plate 1108 is provided at one end of the sliding plate 1106.

[0045] In this embodiment, the rotation of the rotating shaft 10 drives the drive gear 1102 to rotate, which in turn drives the driven gear 1103 to rotate, causing the swing arm 1107 to swing and pull the slide plate 1106 to move back and forth in the slide groove 1105, which in turn drives the arc plate 1108 to move back and forth. During the rotation of the air filter element 8, the plate 1108 is patted against the inner wall of the air filter element 8, which can knock off the particulate impurities adhering to the surface of the air filter element 8.

[0046] As a further embodiment of the present invention, multiple driving gears 1102 are vertically distributed at equal intervals on the rotating shaft 10, and multiple driven gears 1103 and fixed frames 1104 are vertically distributed at equal intervals on the support 1101. The driving gears 1102, driven gears 1103, and fixed frames 1104 exist in pairs.

[0047] In this embodiment, by setting multiple driving gears 1102, driven gears 1103, and fixed brackets 1104 and vertically distributing them at equal intervals, the working linkage can beat the inner wall of the air filter element 8 from all directions, making the air filter element 8 more thoroughly dust-removing.

[0048] As a further embodiment of the present invention, the outer dimensions of the arc plate 1108 are adapted to the inner dimensions of the air filter element 8, and a soft adhesive layer is fixedly adhered to the side surface of the arc plate 1108 near the inner wall of the air filter element 8.

[0049] In this embodiment, the soft rubber layer can reduce the damage to the surface of the air filter 8 caused by the arc plate 1108 hitting the inner wall of the air filter 8, and extend the service life of the air filter 8.

[0050] The working principle of this invention is as follows: Gas enters the air intake chamber 3 through the air intake pipe 5 and reaches the air filter 8, which reduces the flow rate. Large solid and liquid particles are separated from the gas after being filtered by the air filter 8. Some of them accumulate at the bottom of the air intake chamber 3, while others adhere to the outer wall of the air filter 8. The starter motor 9 drives the rotating shaft 10 to rotate, which in turn rotates the air filter 8 and generates centrifugal force to remove the particulate impurities adhering to the surface of the air filter 8. The rotation of the rotating shaft 10 drives the drive gear 1102 to rotate, which in turn drives the driven gear 1103 to rotate. This causes the swing arm 1107 to swing and pull the slide plate 1106 to move back and forth in the slide groove 1105, which in turn drives the arc plate 1108 to move back and forth. During the rotation of the air filter 8, the plate beats the inner wall of the air filter 8, causing the particulate impurities adhering to the surface of the air filter 8 to fall off. After that, the clean gas after filtering the impurities enters the inside of the air filter 8, enters the air outlet pipe 6 through the air vent 12 at the bottom of the air filter 8, and is then transported to the air inlet of the high-volume gas turbine through the air outlet pipe 6.

[0051] The above embodiments are exemplary and not restrictive. Therefore, any technical solutions that can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention are included within the scope of the present invention.

Claims

1. A high-volume gas turbine air intake device capable of filtering impurities, comprising support legs (1), characterized in that, A base frame (2) is fixed on the support leg (1), and an air intake chamber (3) with a top opening is fixed on the base frame (2). An air intake chamber cover (4) is installed at the top opening of the air intake chamber (3). A rotating shaft (10) is rotatably installed inside the air intake chamber (3). An air filter element (8) for filtering impurities from the air entering the air intake chamber (3) is fixed on the rotating shaft (10). The air filter element (8) has a sealed top end and an open bottom end. The top end is fixed to the rotating shaft (10), and the bottom end is rotatably installed on the bottom wall inside the air intake chamber (3). The support leg (1) is fixed with an air intake pipe (5) and an air outlet pipe (6). One end of the air intake pipe (5) extends to the gap between the air intake chamber (3) and the air filter (8). The air intake pipe (5) is used to intake air into the air intake chamber (3). The base frame (2) and the air intake chamber (3) are provided with ventilation channels (12) that communicate with the air filter (8). One end of the air outlet pipe (6) is connected to the ventilation channel (12). The ventilation channel (12) is used to transport the air that enters the air intake chamber (3) and is filtered by the air filter (8) to the interior of the high-volume gas turbine. The air filter (8) is provided with a tapping mechanism (11) for tapping and removing dust from the air filter (8); The tapping mechanism (11) includes a bracket (1101) fixed to the bottom wall inside the air intake chamber (3) and a plurality of drive gears (1102) fixed to the rotating shaft (10). A plurality of driven gears (1103) are rotatably mounted on the bracket (1101). The driven gears (1103) mesh with the drive gears (1102). A plurality of fixed frames (1104) are fixed on the bracket (1101). A sliding groove (1105) is fixed on the fixed frame (1104). A sliding plate (1106) is slidably engaged on the sliding groove (1105). A swing arm (1107) is provided between the sliding plate (1106) and the driven gear (1103). The two ends of the swing arm (1107) are respectively hinged to the driven gear (1103) and the sliding plate (1106). An arc plate (1108) is fixed at one end of the sliding plate (1106). Multiple driving gears (1102) are vertically distributed at equal intervals on the rotating shaft (10), and multiple driven gears (1103) and fixed frames (1104) are vertically distributed at equal intervals on the support (1101). The driving gears (1102), driven gears (1103), and fixed frames (1104) exist in pairs. The outer dimensions of the arc plate (1108) are adapted to the inner dimensions of the air filter (8), and a soft adhesive layer is fixedly adhered to the side surface of the arc plate (1108) near the inner wall of the air filter (8).

2. The high-volume gas turbine air intake device capable of filtering impurities according to claim 1, characterized in that, A motor (9) is fixedly installed on the air intake cover (4). The output end of the motor (9) is connected to the rotating shaft (10) through a coupling. The motor (9) is used to drive the rotating shaft (10) to rotate.

3. The high-volume gas turbine air intake device capable of filtering impurities according to claim 1, characterized in that, Pressure gauges (7) are fixedly installed on the air inlet pipe (5) and the air outlet pipe (6), respectively. The pressure gauges (7) are used to detect the gas pressure in the air inlet pipe (5) and the air outlet pipe (6).

4. The high-volume gas turbine air intake device capable of filtering impurities according to claim 1, characterized in that, The outer diameter of the air filter (8) is adapted to the inner diameter of the air intake chamber (3), and there is a gap between the air filter (8) and the air intake chamber (3).

5. A method for filtering impurities using a high-volume gas turbine intake device as described in any one of claims 1-4, characterized in that, Includes the following steps: S1, the gas enters the air intake chamber (3) through the air intake pipe (5) and reaches the air filter (8) which reduces the flow rate. Large solid particles and liquid particles are separated from the gas after being filtered by the air filter (8). Some of them gather at the bottom of the air intake chamber (3) and some adhere to the outer wall of the air filter (8). S2, the rotating shaft (10) drives the air filter (8) to rotate, generating centrifugal force to remove particulate impurities adhering to the surface of the air filter (8). The rotating shaft (10) drives the drive gear (1102) to rotate, which in turn drives the driven gear (1103) to rotate, which in turn drives the swing arm (1107) to swing and pull the slide plate (1106) to move back and forth in the slide groove (1105), which in turn drives the arc plate (1108) to move back and forth. During the rotation of the air filter (8), the plate hits the inner wall of the air filter (8), causing the particulate impurities adhering to the surface of the air filter (8) to fall off. S3, the clean gas after filtering impurities enters the inside of the air filter (8), enters the air outlet pipe (6) through the air vent (12) at the bottom of the air filter (8), and is then transported to the air inlet of the large air volume gas turbine through the air outlet pipe (6).

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