Gas turbine engine cleaning equipment and cleaning method thereof

By using the use of cutting forks and high -voltage air pump systems on the gas turbine engine, combined with dry ice spraying and electromagnet technology, the tedious and poor effects of existing cleaning technology have been solved, and efficient and safe online cleaning effects are achieved.

CN119346544AInactive Publication Date: 2025-01-24XIANGYANG HANGSHUN AVIATION TECH CO LTD
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Patent Information

Application Number
CN202411662146.2
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-11-20
Publication Date
2025-01-24
Estimated Expiration
Not applicable · inactive patent

AI Technical Summary

Technical Problem

The existing gas turbine engine cleaning technology has problems such as difficulty in achieving online cleaning, cumbersome washing, long time, poor effect on lubricant deposits, and cleaning agents pollute the environment.

Method used

Adopt a cut -up lift seat with a high -pressure air pump and dry ice conveying system, drive the inner conveyor telescopic tube inside the engine through the outer expansion and retractable tube, use dry ice to spray and clean, and achieve flexibility of the spray tube through technical means such as electromagnets and low temperature paraffin to achieve technical means Adjust and stability.

Benefits of technology

Realizing online cleaning, reducing the complexity and time of operation, improving the cleaning effect of the inside of the engine, avoiding the risk of inadequate ice spraying and collision of the spray tube, and ensuring the safety of the cleaning process.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention discloses gas turbine engine cleaning equipment, and belongs to the technical field of turbine engine cleaning, the gas turbine engine cleaning equipment comprises a shear fork lifting seat, a lifting platform of the shear fork lifting seat is fixedly connected with a high-pressure gas pump, and a gas outlet of the high-pressure gas pump is communicated with a gas conveying pipe; the end, away from the high-pressure air pump, of the air conveying pipe communicates with a multi-way flow dividing valve, and a first air outlet of the multi-way flow dividing valve communicates with a telescopic conveying pipe. The telescopic conveying pipe comprises a plurality of inner-layer conveying telescopic pipes, under the condition that the inner-layer conveying telescopic pipes are driven to stretch forwards, the inner-layer conveying telescopic pipes can penetrate through the positions of fan blades of the worm wheel engine, so that the inner-layer conveying telescopic pipes penetrate into the worm wheel engine, and after the inner-layer conveying telescopic pipes penetrate into the worm wheel engine, the inner-layer conveying telescopic pipes are driven to stretch forwards. And the dry ice particle manufacturing machine is started again to spray the dry ice, the overall spraying cleaning range is larger, cleaning can be conducted by going deep into the engine, and the phenomenon that the dry ice cannot be sprayed and cleaned at the local position is reduced.
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Description

Technical Field

[0001] The present invention relates to the technical field of cleaning of worm gear engines, and in particular to equipment for cleaning gas turbine engines and a cleaning method thereof. Background Art

[0002] A gas turbine engine, or gas turbine, is a type of heat engine that is widely used in aviation, energy, ships, and automobiles. A gas turbine engine includes four processes: intake, compression, combustion, and exhaust. The air first enters the compressor and is compressed into a high-density, high-pressure, low-speed airflow, and then enters the combustion chamber to mix with the fuel and burn. The high-temperature exhaust gas generated after combustion drives the turbine to rotate, thereby outputting power. At the same time, the rotation of the turbine will also drive the compressor to continue working, forming a cycle, but after the long-term use of the turbine gas engine, the interior of the turbine gas engine needs to be cleaned. The traditional cleaning method is to use water washing, etc., but the water washing method is more troublesome and requires the removal of components, which is more troublesome overall.

[0003] In the patent entitled "Online Dry Ice Cleaning Device and Method for Aircraft Engine Cleaning" and the patent publication number CN113731958B, it is also proposed that the commonly used cleaning method is to wash the internal air path of the engine on the wing, but there are the following problems: first, the existing cleaning device cannot be cleaned online, and the controller and sensor need to be removed before water washing, which is cumbersome to operate; second, after water washing, the oil collection tank and the air source system need to be ignited and tested to remove odors, which increases maintenance work and test costs; the entire water washing time is long, and the effect on lubricating oil deposits is very poor; the cleaning agent pollutes the environment and the lubricating oil system; the cleaning Improper agent selection or inappropriate droplet atomization may lead to precipitation, and the washed sand and gravel may enter the wheel cavity with the liquid. In winter, the northern base cannot wash with water to prevent ice. The engine is cleaned neatly by utilizing the physical and chemical properties of carbon dioxide, thermodynamic principles and dry ice cleaning characteristics. However, the engine is sprayed with dry ice on the outside as a whole, and the rotation of the engine must be ensured when spraying dry ice. During the rotation of the engine, the inclined blade position will appear because the rotation cannot contact the dry ice, thereby ignoring these places. Therefore, a gas turbine engine cleaning device and a cleaning method thereof are proposed. Summary of the invention

[0004] An object of the present invention is to provide a gas turbine engine equipment for cleaning and a cleaning method thereof to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solutions: a gas turbine engine cleaning device, comprising a scissor lift seat, a high-pressure air pump is fixedly connected to the lifting platform of the scissor lift seat, a gas outlet of the high-pressure air pump is connected to a gas delivery pipe, an end of the gas delivery pipe away from the high-pressure air pump is connected to a multi-way diverter valve, and a first gas outlet of the multi-way diverter valve is connected to a telescopic delivery pipe; Among them, the telescopic conveying tube includes a plurality of inner layer conveying telescopic tubes, the diameters of the plurality of inner layer conveying telescopic tubes gradually decrease, the plurality of inner layer conveying telescopic tubes are arranged in a telescopic tube type, the outer parts of the plurality of inner layer conveying telescopic tubes are integrally formed with an outer layer expansion telescopic tube, the plurality of outer layer expansion telescopic tubes are connected through an external diversion tube, a first electrically controlled valve is connected at the air inlet position of the external diversion tube, a plurality of injection pipes are connected to the outside of the inner layer conveying telescopic tube, another air inlet of the multi-way diverter valve is connected to a dry ice conveying tube, one end of the dry ice conveying tube away from the multi-way diverter valve is connected to a dry ice particle making machine, another air outlet of the multi-way diverter valve is connected to an external diversion tube, and one end of the external diversion tube away from the multi-way diverter valve is connected to the outer layer expansion telescopic tube close to the multi-way diverter valve.

[0006] Preferably, the outer part of the inner layer conveying telescopic tube is integrally formed with a plurality of low-temperature resistant deformation rubber layers, the injection pipe is located in the middle position of the low-temperature resistant deformation rubber layer and is fixedly connected to the low-temperature resistant deformation rubber layer, the outer part of the inner layer conveying telescopic tube is integrally formed with a plurality of groups of electromagnets, each group of electromagnets is divided into a plurality of groups and are arranged in a circle around the low-temperature resistant deformation rubber layer, and the outer part of the injection pipe is integrally formed with an iron adsorption ring.

[0007] Preferably, a storage cavity is integrally formed inside the low-temperature resistant deformable rubber layer, and the interior of the storage cavity is filled with low-temperature paraffin. The low-temperature paraffin is liquid under normal conditions. The low-temperature paraffin is used to quickly condense and solidify the dry ice transported inside the inner layer of the telescopic tube when the electromagnet generates magnetic force to adsorb the iron adsorption ring, causing the injection tube to tilt to a specified state. The low-temperature paraffin is used to fix and limit the injection tube in the tilted state by solidifying the low-temperature paraffin.

[0008] Preferably, a copper heat conductive plate is inserted into the low-temperature paraffin, and the copper heat conductive plate is in a "Z" shape. The end of the copper heat conductive plate away from the low-temperature paraffin penetrates the low-temperature resistant deformation rubber layer and the outer wall of the outer expansion and expansion tube and adheres to the outer surface of the outer expansion and expansion tube.

[0009] Preferably, a heating wire is wound around the outside of the copper heat conducting plate, and the energized end of the heating wire is connected to a energized wire, one of the energized ends of the energized wire is electrically connected to the heating wire, and the other energized end is electrically connected to the electromagnet.

[0010] Preferably, a plurality of ray lamps are integrally formed on the outside of the outer layer expansion and telescopic tube, and one end of the ray lamp penetrates the outer wall of the outer layer expansion and telescopic tube and is fixedly connected to the outer wall surface of the injection pipe.

[0011] Preferably, the exteriors of the plurality of outer expansion and contraction tubes are all connected to air pressure measuring valves.

[0012] Preferably, the inlet end of the spray pipe is connected to a low-temperature resistant electric control valve, and the low-temperature resistant electric control valve is used to regulate the opening and closing of the inlet and outlet of the spray pipe and adjust the amount of dry ice sprayed from the spray pipe.

[0013] Preferably, a plurality of negative pressure suction cups are installed at the bottom of the scissors lift seat, and the negative pressure suction cups are connected to the air inlet of the high-pressure air pump through a negative pressure suction pipe.

[0014] The present invention also provides a method for cleaning gas turbine engine equipment, comprising the following steps: S1. Push the scissor lift seat as a whole to the front of the worm gear engine equipment, start the high-pressure air pump to deliver high-pressure gas to the inside of the gas delivery pipe and the multi-way diverter valve, and divert the gas to the inside of the outer expansion and telescopic tube through the multi-way diverter valve, and deliver the gas to the inside of the outer expansion and telescopic tube. The gas is delivered to the inside of the outer expansion and telescopic tube so that the outer expansion and telescopic tube expands and drives the inner delivery and telescopic tube to extend to the inside of the worm gear engine; S2, when the inner layer delivery telescopic tube extends into the interior of the turbine engine, the dry ice particle making machine is started to deliver the dry ice particles into the dry ice delivery tube and then delivered to the interior of the inner layer delivery telescopic tube through the multi-way diverter valve, and the dry ice is evenly sprayed into the interior of the turbine engine through multiple spray pipes outside the inner layer delivery telescopic tube; S3. After the dry ice is ejected through the original direction of the ejection tube, the electromagnet is started to drive the ejection tube to tilt, and the dry ice is ejected through the tilted ejection tube to different positions inside the worm engine. Each dry ice ejection time is 2-3S.

[0015] Compared with the prior art, the present invention has the following beneficial effects: In the present invention, before spraying dry ice to clean the worm gear engine, the gas delivered by the high-pressure air pump can be diverted to the outer expansion telescopic tube. When gas continues to enter the interior of the plurality of outer expansion telescopic tubes, the inner delivery telescopic tube can be driven to extend forward. When the inner delivery telescopic tube is driven to extend forward, the inner delivery telescopic tube can pass through the fan blade position of the worm gear engine, thereby penetrating into the interior of the worm gear engine. After penetrating into the interior of the worm gear engine, the dry ice particle making machine is started again to spray dry ice. The overall spray cleaning range is larger, and the interior of the engine can be cleaned deeply, reducing the phenomenon that the dry ice spraying cannot clean local positions.

[0016] In the present invention, due to the existence of the outer expansion telescopic tube, rigid collision between the inner transport telescopic tube and the fan blades and other components can be avoided, thereby preventing bumping and ensuring safety during the cleaning process. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of an embodiment of the present invention; Figure 2 It is a partial cross-sectional structural schematic diagram of a single inner layer conveying telescopic tube and a single outer layer expansion telescopic tube in an embodiment of the present invention; Figure 3 This is a schematic structural diagram of the inclined state of the injection pipe in an embodiment of the present invention; Figure 4 This is a schematic diagram of the structure of low-temperature paraffin in an embodiment of the present invention; Figure 5 For the embodiment of the present invention Figure 1 A schematic diagram of the enlarged structure of area A; Figure 6 For the embodiment of the present invention Figure 1 Schematic diagram of the enlarged structure of area B; Figure 7 For the embodiment of the present invention Figure 4 Schematic diagram of the enlarged structure of region C; Figure 8 Schematic diagram of the bottom view of the negative pressure suction cup in an embodiment of the present invention.

[0018] In the figure: 100, scissor lift seat; 101, dry ice pellet making machine; 102, high-pressure air pump; 103, gas delivery pipe; 104, dry ice delivery pipe; 105, multi-way diverter valve; 106, telescopic delivery pipe; 107, inner layer delivery telescopic pipe; 108, outer layer expansion telescopic pipe; 109, external diverter pipe; 110, first electric control valve; 111, injection pipe; 112, low temperature resistant electric control valve; 200, low temperature resistant deformation rubber layer; 201, iron adsorption ring; 202, electromagnet; 300, low temperature paraffin; 400, copper heat conducting plate; 401, heating wire; 402, power-carrying wire; 500, ray lamp; 600, air pressure measuring valve; 700, negative pressure suction cup. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] Embodiment 1: Figure 1 As shown, the present application is a gas turbine engine cleaning device, comprising a scissor lift 100, a high-pressure air pump 102 is fixedly connected to the lifting platform of the scissor lift 100, a gas outlet of the high-pressure air pump 102 is connected to a gas delivery pipe 103, an end of the gas delivery pipe 103 away from the high-pressure air pump 102 is connected to a multi-way diverter valve 105, and a first gas outlet of the multi-way diverter valve 105 is connected to a telescopic delivery pipe 106; Among them, the telescopic conveying tube 106 includes multiple inner layer conveying telescopic tubes 107, the diameters of the multiple inner layer conveying telescopic tubes 107 are gradually reduced, and the multiple inner layer conveying telescopic tubes 107 are arranged in a telescopic tube type. The outsides of the multiple inner layer conveying telescopic tubes 107 are all integrally formed with outer layer expansion telescopic tubes 108, and the multiple outer layer expansion telescopic tubes 108 are connected to each other through an external diversion tube 109. The outside of the inner layer conveying telescopic tube 107 is connected to multiple injection tubes 111, and the other air inlet of the multi-way diverter valve 105 is connected to the dry ice conveying tube 104, and one end of the dry ice conveying tube 104 away from the multi-way diverter valve 105 is connected to the dry ice particle making machine 101, and the other air outlet of the multi-way diverter valve 105 is connected to the external diversion tube 109, and the end of the external diversion tube 109 away from the multi-way diverter valve 105 is connected to the outer layer expansion telescopic tube 108 close to the multi-way diverter valve 105.

[0021] Specifically, during use, the staff moves the scissor lift seat 100 to the designated position. After moving the scissor lift seat 100 to the designated position, the staff starts the scissor lift seat 100 to drive the lifting platform to rise. When the lifting platform rises to the inlet position of the gas turbine engine, the high-pressure gas pump 102 is started to continuously deliver high-pressure gas to the inside of the gas delivery pipe 103. After the gas is delivered to the inside of the gas delivery pipe 103, it is diverted through the multi-way diverter valve 105. During the diversion process, the connection with the external diverter pipe 109 is opened in advance. The gas outlet port is used to deliver the gas to the external shunt pipe 109. After the gas is delivered to the inside of the external shunt pipe 109, the external shunt pipe 109 delivers the gas to the inside of the telescopic delivery pipe 106, and the gas is delivered to the inside of the outer expansion telescopic pipe 108. When the gas is delivered to the inside of the outer expansion telescopic pipe 108, the outer expansion telescopic pipe 108 will expand. At the same time, after the outer expansion telescopic pipe 108 near the multi-way diverter valve 105 expands, the first outer expansion telescopic pipe 108 can be expanded through the external shunt pipe 109. The gas is transported to the inside of the remaining outer expansion telescopic tube 108. When the remaining outer expansion telescopic tube 108 is filled with gas, it will also expand and extend, thereby driving the inner transport telescopic tube 107 in the shape of a telescopic tube to extend. When the inner transport telescopic tube 107 gradually extends, it can pass through the gap between the blades of the worm engine, thereby penetrating into the inside of the worm engine. After penetrating into the inside of the turbine engine, the dry ice pellets are transported into the dry ice delivery tube 104 by starting the dry ice pellet making machine 101. The dry ice pellets are transported to the dry ice delivery tube After the inside of 104 is closed, the channel of the external shunt pipe 109 is transported to the inside of the inner layer transport telescopic pipe 107 together with the gas pressure transported by the gas transport pipe 103 through the multi-way shunt valve 105. When the dry ice particles enter the inside of the inner layer transport telescopic pipe 107, they are evenly sprayed to the outside through the spray pipe 111 outside the inner layer transport telescopic pipe 107. The inside of the worm gear engine is sprayed and cleaned with dry ice through multiple retractable inner layer transport telescopic pipes 107 and the spray pipe 111, thereby increasing the spraying area of ​​dry ice and improving the cleaning effect.

[0022] like Figure 2 As shown, the inlet end of the spray pipe 111 is connected to a low-temperature resistant electric control valve 112, which is used to adjust the opening and closing of the inlet and outlet of the spray pipe 111 and adjust the amount of dry ice sprayed from the spray pipe 111.

[0023] Furthermore, after the integral inner layer transport telescopic tube 107 and the outer layer expansion telescopic tube 108 are extended into the interior of the worm gear engine, it is not only the outer layer expansion telescopic tube 108 that drives the inner layer transport telescopic tube 107 to extend into the interior of the engine, but the outer layer expansion telescopic tube 108 not only drives the inner layer transport telescopic tube 107 to expand and contract when expanded, but also the expanded outer layer expansion telescopic tube 108 can prevent the inner layer transport telescopic tube 107 from rigidly colliding with the engine blades, and provide buffering when a collision occurs to avoid collision with engine components.

[0024] Furthermore, a first electrically-controlled valve 110 is connected to the air inlet of the external diversion tube 109. By setting a plurality of first electrically-controlled valves 110, the amount of gas delivered by the plurality of external diversion tubes 109 to the inside of other outer expansion and telescopic tubes 108 can be controlled, thereby controlling the expansion and extension of other outer expansion and telescopic tubes 108, making it convenient for the staff to make adjustments according to usage conditions.

[0025] like Figure 1 As shown, the outsides of multiple outer expansion and telescopic tubes 108 are all connected to air pressure measuring valves 600. Through the setting of the air pressure measuring valves 600, the gas inside the outer expansion and telescopic tubes 108 can be monitored and released. When the amount of gas inside the outer expansion and telescopic tubes 108 is too much, resulting in excessive extension of the inner transporting telescopic tube 107, the gas inside the outer expansion and telescopic tubes 108 can be released through the air pressure measuring valves 600. After the gas inside the outer expansion and telescopic tubes 108 is released, the local outer expansion and telescopic tubes 108 will no longer expand but will shrink back to their original state. When the outer expansion and telescopic tubes 108 shrink back to their original state, they will drive the inner transporting telescopic tubes 107 to return to the retracted position.

[0026] like Figure 8 As shown, a plurality of negative pressure suction cups 700 are installed at the bottom of the scissor lift seat 100 , and the negative pressure suction cups 700 are connected to the air inlet of the high-pressure air pump 102 through a negative pressure suction pipe.

[0027] Specifically, by disposing a plurality of negative pressure suction cups 700 , the negative pressure suction cups 700 can be used to be adsorbed to the ground during the overall spraying of dry ice for cleaning, thereby ensuring the stability of the scissor lift seat 100 during the dry ice spraying process.

[0028] The technical scheme in the above-mentioned embodiment of the present application has at least the following technical effects or advantages: relative to the prior art, in the present embodiment, before spraying dry ice to clean the worm gear engine, the gas delivered by the high-pressure air pump 102 can be diverted to the outer expansion telescopic tube 108, and when the gas continues to enter the interior of the multiple outer expansion telescopic tubes 108, the inner delivery telescopic tube 107 can be driven to extend forward, and when the inner delivery telescopic tube 107 is driven to extend forward, the inner delivery telescopic tube 107 can pass through the fan blade position of the worm gear engine, thereby penetrating into the interior of the worm gear engine, and after penetrating into the interior of the worm gear engine, the dry ice particle making machine 101 is started again to spray dry ice, and the overall spray cleaning range is larger, and the interior of the engine can be cleaned deeply, reducing the phenomenon that the dry ice spraying cannot reach the local position, and because of the existence of the outer expansion telescopic tube 108, the rigid collision between the inner delivery telescopic tube 107 and the fan blades and other components can be avoided, thereby generating a bump phenomenon, thereby ensuring the safety during the cleaning process.

[0029] Embodiment 2: Considering that there are many internal parts of the worm gear engine, and the blades of the worm gear engine are also inclined, during the process of spraying dry ice cleaning, the direction of spraying dry ice by the inner layer delivery telescopic tube 107 is constant. When facing the inclined blades and the connecting gap located at the rear position of the inner layer delivery telescopic tube 107, the inner layer delivery telescopic tube 107 that vertically sprays dry ice cannot effectively spray dry ice to these places. In view of the above technical problems, the present application proposes the following technical solutions to solve the above technical problems, specifically: like Figure 2-Figure 4 As shown, the outer part of the inner layer transport telescopic tube 107 is integrally formed with a plurality of low-temperature resistant deformation rubber layers 200, the injection tube 111 is located in the middle position of the low-temperature resistant deformation rubber layer 200 and is fixedly connected to the low-temperature resistant deformation rubber layer 200, the outer part of the inner layer transport telescopic tube 107 is integrally formed with a plurality of groups of electromagnets 202, each group of electromagnets 202 is divided into a plurality of groups and are arranged in a circle around the low-temperature resistant deformation rubber layer 200, and the outer part of the injection tube 111 is integrally formed with an iron adsorption ring 201.

[0030] Specifically, during use, when it is necessary to change the spraying direction of the inner layer transport telescopic tube 107, the staff will uniformly turn on the electromagnet 202 at the specified angle position. After turning on the electromagnet 202 at the specified position, the electromagnet 202 at the specified position will generate magnetism, and when magnetism is generated, the iron adsorption ring 201 can be adsorbed. When the iron adsorption ring 201 is adsorbed, the iron adsorption ring 201 will cause the injection tube 111 to tilt. When the injection tube 111 tilts to a specified degree, the high-pressure air pump 102 and the dry ice particle maker 101 are turned on again to transport the dry ice into the interior of the inner layer transport telescopic tube 107. After the dry ice is transported to the interior of the inner layer transport telescopic tube 107, it is sprayed out through the tilted inner layer transport telescopic tube 107.

[0031] Furthermore, in the process of the electromagnet 202 adsorbing the iron adsorption ring 201, when the iron adsorption ring 201 is tilted, the low-temperature resistant deformable rubber layer 200 outside the circumference of the injection tube 111 and the inner layer conveying telescopic tube 107 connected to the outside of the injection tube 111 will be deformed. When the electromagnet 202 no longer generates adsorption force on the iron adsorption ring 201, the deformed low-temperature resistant deformable rubber layer 200 and the iron adsorption ring 201 are no longer subjected to pulling force. When the low-temperature resistant deformable rubber layer 200 and the iron adsorption ring 201 are no longer subjected to pulling force, the low-temperature resistant deformable rubber layer 200 and the iron adsorption ring 201 will rebound to their original positions, thereby straightening the injection tube 111 to its original position.

[0032] Furthermore, because the plurality of electromagnets 202 are arranged in a circle outside the spraying tube 111 , the spraying tube 111 can be driven to spray dry ice toward different positions by turning on the electromagnets 202 at different positions.

[0033] like Figure 6 As shown, a plurality of radiation lamps 500 are integrally formed on the outside of the outer expansion and telescopic tube 108 , and one end of the radiation lamp 500 penetrates the outer wall of the outer expansion and telescopic tube 108 and is fixedly connected to the outer wall surface of the injection tube 111 .

[0034] Specifically, in order to facilitate the staff to understand the tilt direction of the injection tube 111, the X-ray lamp 500 can be turned on. When the injection tube 111 tilts, the X-ray lamp 500 can be driven to tilt together. When the injection tube 111 drives the X-ray lamp 500 to tilt together, the X-ray lamp 500 can emit light rays. The staff can determine the tilt angle of the injection tube 111 by observing the direction of the light rays.

[0035] The technical solution in the above-mentioned embodiment of the present application has at least the following technical effects or advantages: relative to embodiment one, in this embodiment, when the staff needs to change the spraying direction of dry ice, the iron adsorption ring 201 can be adsorbed by turning on the electromagnet 202. In the process of adsorbing the iron adsorption ring 201, the injection tube 111 can be driven to tilt. When the injection tube 111 is tilted, the spraying direction of dry ice can be changed. By changing the spraying direction of dry ice to spray backward or to a designated position, the inclined fan blades or connected gap positions can be cleaned by dry ice spraying, thereby further enhancing the overall cleaning effect.

[0036] Embodiment 3 Considering that dry ice is transported in the inner telescopic tube 107, the temperature of the inner telescopic tube 107 will drop sharply during the process of transporting dry ice. When the temperature of the inner telescopic tube 107 drops sharply, the magnetic force of the electromagnet 202 will be further strengthened. Under low temperature conditions, the resistance of the wire decreases, the current passing rate increases, and the generated magnetic field may be enhanced. Once the magnetic force of the electromagnet 202 is too strong, the adsorption force on the injection tube 111 will increase, which will cause the injection tube 111 to tilt excessively, and further cause the injection tube 111 to be unable to spray dry ice in a specified direction, and the cleaning effect at the specified position cannot be achieved. In view of the above technical problems, the present application provides the following technical solutions, specifically: like Figure 4-Figure 7 As shown, a storage cavity is integrally formed inside the low-temperature resistant deformable rubber layer 200, and the interior of the storage cavity is filled with low-temperature paraffin 300. The low-temperature paraffin 300 is liquid under normal conditions. The low-temperature paraffin 300 is used when the electromagnet 202 generates magnetic force to adsorb the iron adsorption ring 201, causing the injection tube 111 to tilt to a specified state. The low temperature of the dry ice transported inside the inner layer of the telescopic tube 107 is used to quickly condense and solidify, and the injection tube 111 in the tilted state is fixed and limited by solidifying the low-temperature paraffin 300.

[0037] Specifically, during use, a storage cavity is provided inside the low-temperature deformable rubber layer 200, and low-temperature paraffin 300 is filled inside the storage cavity. When the spray tube 111 is tilted due to the magnetic adsorption of the electromagnet 202, the low-temperature deformable rubber layer 200 will be deformed. When the low-temperature deformable rubber layer 200 is deformed, the liquid level of the low-temperature paraffin 300 inside the storage cavity will also change. In the process of the inner layer transport telescopic tube 107 transporting the dry ice spray tube 111 to spray dry ice, the dry ice will be transported to the storage cavity by the low-temperature deformable rubber layer 200. Ice will absorb the heat in the low-temperature paraffin 300, causing the temperature of the low-temperature paraffin 300 to decrease. When the temperature of the low-temperature paraffin 300 decreases, the low-temperature paraffin 300 will solidify. Once solidification occurs, the solidified low-temperature paraffin 300 can drive the low-temperature resistant deformation rubber layer 200 to limit and fix the inclined injection pipe 111, thereby preventing the increase of current passing through the electromagnet 202 under continuous low-temperature conditions, resulting in an enhanced magnetic field and enhanced adsorption force. When the adsorption force is enhanced, the injection pipe 111 will be overly tilted.

[0038] The technical solution in the above-mentioned embodiment of the present application has at least the following technical effects or advantages: relative to the second embodiment, in the present embodiment, the low-temperature paraffin 300 is liquid in the normal state and will not affect the injection position of the injection tube 111. When the electromagnet 202 adsorbs the injection tube 111 to change its position and is spraying dry ice, the dry ice will absorb the heat in the low-temperature paraffin 300 inside the low-temperature resistant deformable rubber layer 200, causing the low-temperature paraffin 300 to solidify and harden. When the low-temperature paraffin 300 solidifies and hardens, the position of the injection tube 111 can be fixed, so that even when the magnetic force of the electromagnet 202 is enhanced due to low temperature, the position of the injection tube 111 will not be excessively adsorbed and tilted, thereby ensuring the normal injection angle of the injection tube 111.

[0039] Embodiment 4 Considering that during the overall cleaning process, the low-temperature paraffin 300 will solidify after being cooled by dry ice, although the solidified low-temperature paraffin 300 can further ensure the tilt stability of the injection pipe 111, the direction of the injection pipe 111 is not constant during the cleaning process. It may be necessary to frequently adjust the angle of the injection pipe 111 during the cleaning state. When the low-temperature paraffin 300 solidifies, if you want to adjust the injection pipe 111 again, you need to return the low-temperature paraffin 300 to a liquid state. It takes a while for the low-temperature paraffin 300 to return to a liquid state at room temperature. It is impossible to wait for the low-temperature paraffin 300 to return to its original state during the cleaning process. In view of the above technical problems, the present application proposes the following technical solutions to solve the above technical problems, specifically: like Figure 4-Figure 6As shown, a copper heat conducting plate 400 is inserted into the low-temperature paraffin 300, and the copper heat conducting plate 400 is in a "Z" shape. The end of the copper heat conducting plate 400 away from the low-temperature paraffin 300 penetrates the low-temperature deformation resistant rubber layer 200 and the outer wall of the outer expansion and expansion tube 108 and fits against the outer surface of the outer expansion and expansion tube 108, and the upper end of the "Z"-shaped copper heat conducting plate 400 fits against the outer wall of the outer expansion and expansion tube 108 to increase the heat receiving and dissipation area, and the lower end is inserted into the low-temperature paraffin 300 to increase the contact between the low-temperature paraffin 300 and the low-temperature paraffin 300.

[0040] Specifically, during use, by setting the copper heat conducting plate 400, under normal conditions, the speed at which external heat enters the solidified low-temperature paraffin 300 can be accelerated through the copper heat conducting plate 400, and the speed at which the solidified low-temperature paraffin 300 returns to a liquid state can be further accelerated.

[0041] Furthermore, a heating wire 401 is wound around the outside of the copper heat conducting plate 400 , and a power conducting wire 402 is connected to the power conducting end of the heating wire 401 . One power conducting end of the power conducting wire 402 is electrically connected to the heating wire 401 , and the other power conducting end is electrically connected to the electromagnet 202 .

[0042] Specifically, when the direction of the injection tube 111 needs to be adjusted immediately, the heating wire 401 can be turned on through the energized wire 402. When the heating wire 401 is turned on, the heat generated can be transmitted to the low-temperature paraffin 300 through the heating wire 401. By heating the low-temperature paraffin 300, the low-temperature paraffin 300 can quickly return to a liquid state. When the low-temperature paraffin 300 returns to a liquid state, it will lose the fixing and limiting effects on the injection tube 111. When the injection tube 111 loses the fixing and limiting effects, the electromagnet 202 in different directions is started again to adsorb the iron adsorption ring 201 to drive the injection tube 111 to adjust its angle.

[0043] The technical scheme in the above-mentioned embodiment of the present application has at least the following technical effects or advantages: relative to embodiment three, in this embodiment, through the arrangement of the copper heat conducting plate 400 and the heating wire 401, when the position of the injection tube 111 needs to be quickly adjusted, the heating wire 401 can be energized through the power-carrying wire 402. After the heating wire 401 is energized, the heating wire 401 will generate heat, and the heat will be transferred to the low-temperature paraffin 300 through the copper heat conducting plate 400, so that the low-temperature paraffin 300 is heated and returns to a liquid state. When the low-temperature paraffin 300 returns to a liquid state, it will lose the fixation and limitation of the injection tube 111. When the injection tube 111 loses the fixation and limitation effect, the injection tube 111 is driven to adjust its angle by starting the electromagnet 202 in a different orientation again to adsorb the iron adsorption ring 201.

[0044] The present invention also provides a cleaning method for cleaning gas turbine engine equipment, comprising the following steps: S1. Push the scissor lift 100 as a whole to the front of the worm gear engine equipment, start the high-pressure gas pump 102 to deliver high-pressure gas to the inside of the gas delivery pipe 103 and the multi-way diverter valve 105, and divert the gas to the inside of the outer expansion telescopic tube 108 through the multi-way diverter valve 105, and deliver the gas to the inside of the outer expansion telescopic tube 108. The gas is delivered to the inside of the outer expansion telescopic tube 108, so that the outer expansion telescopic tube 108 expands and drives the inner delivery telescopic tube 107 to extend to the inside of the worm gear engine; S2, when the inner layer delivery telescopic tube 107 extends into the interior of the turbine engine, the dry ice particle making machine 101 is started to deliver the dry ice particles into the dry ice delivery tube 104 and then to the interior of the inner layer delivery telescopic tube 107 through the multi-way diverter valve 105, and the dry ice is evenly sprayed into the interior of the turbine engine through the multiple spraying pipes 111 outside the inner layer delivery telescopic tube 107; S3. After the dry ice is ejected in the original direction through the ejection tube 111, the electromagnet 202 is started to drive the ejection tube 111 to tilt, and the dry ice is ejected through the tilted ejection tube 111 to different positions inside the worm gear engine. Each dry ice ejection time is 2-3S.

[0045] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A gas turbine engine cleaning device, comprising a scissor lift seat (100), characterized in that: A high-pressure air pump (102) is fixedly connected to the lifting platform of the scissor lift seat (100); a gas outlet of the high-pressure air pump (102) is connected to a gas delivery pipe (103); an end of the gas delivery pipe (103) away from the high-pressure air pump (102) is connected to a multi-way diverter valve (105); and a first gas outlet of the multi-way diverter valve (105) is connected to a telescopic delivery pipe (106); The telescopic delivery tube (106) comprises a plurality of inner-layer delivery telescopic tubes (107), the diameters of the plurality of inner-layer delivery telescopic tubes (107) gradually decrease, the plurality of inner-layer delivery telescopic tubes (107) are arranged in a telescopic tube type, the outer parts of the plurality of inner-layer delivery telescopic tubes (107) are integrally formed with outer-layer expansion telescopic tubes (108), the plurality of outer-layer expansion telescopic tubes (108) are connected to each other via an external shunt tube (109), the air inlet of the external shunt tube (109) is connected to a first electrically controlled valve (110), and the inner-layer delivery telescopic tubes (106) are connected to each other via an external shunt tube (109). The outside of the tube (107) is connected to a plurality of injection tubes (111); another air inlet of the multi-way diverter valve (105) is connected to a dry ice delivery tube (104); one end of the dry ice delivery tube (104) away from the multi-way diverter valve (105) is connected to a dry ice particle making machine (101); another air outlet of the multi-way diverter valve (105) is connected to an external diverter tube (109); one end of the external diverter tube (109) away from the multi-way diverter valve (105) is connected to an outer expansion and contraction tube (108) close to the multi-way diverter valve (105).

2. A gas turbine engine cleaning device according to claim 1, characterized in that: The outer portion of the inner layer transport telescopic tube (107) is integrally formed with a plurality of low temperature resistant deformation rubber layers (200); the injection tube (111) is located at the middle position of the low temperature resistant deformation rubber layer (200) and is fixedly connected to the low temperature resistant deformation rubber layer (200); the outer portion of the inner layer transport telescopic tube (107) is integrally formed with a plurality of groups of electromagnets (202); each group of electromagnets (202) is divided into a plurality of groups and arranged in a circular shape around the low temperature resistant deformation rubber layer (200); and the outer portion of the injection tube (111) is integrally formed with an iron adsorption ring (201).

3. The gas turbine engine cleaning device according to claim 2, characterized in that: A storage cavity is integrally formed inside the low-temperature resistant deformable rubber layer (200), and the storage cavity is filled with low-temperature paraffin (300). The low-temperature paraffin (300) is liquid in a normal state. The low-temperature paraffin (300) is used to rapidly condense and solidify the dry ice transported inside the inner layer transport telescopic tube (107) when the electromagnet (202) generates magnetic force to adsorb the iron adsorption ring (201) so that the injection tube (111) is tilted to a specified state, thereby fixing and limiting the injection tube (111) in the tilted state by solidifying the low-temperature paraffin (300).

4. The gas turbine engine cleaning device according to claim 3, characterized in that: A copper heat conducting plate (400) is inserted into the low-temperature paraffin (300), and the copper heat conducting plate (400) is in a "Z" shape. One end of the copper heat conducting plate (400) away from the low-temperature paraffin (300) penetrates the low-temperature resistant deformation rubber layer (200) and the outer wall of the outer expansion and telescopic tube (108), and is attached to the outer surface of the outer expansion and telescopic tube (108).

5. The gas turbine engine cleaning device according to claim 4, characterized in that: A heating wire (401) is wound around the outside of the copper heat conducting plate (400), and the energized end of the heating wire (401) is connected to a energized wire (402), one of the energized ends of the energized wire (402) is electrically connected to the heating wire (401), and the other energized end is electrically connected to the electromagnet (202).

6. The gas turbine engine cleaning device according to claim 1, characterized in that: A plurality of ray lamps (500) are integrally formed on the outside of the outer layer expansion and telescopic tube (108), and one end of the ray lamp (500) penetrates the outer wall of the outer layer expansion and telescopic tube (108) and is fixedly connected to the outer wall surface of the injection tube (111).

7. The gas turbine engine cleaning device according to claim 1, characterized in that: The exteriors of the plurality of outer expansion and contraction tubes (108) are all connected to an air pressure measuring valve (600).

8. The gas turbine engine cleaning device according to claim 1, characterized in that: The inlet end of the spray pipe (111) is connected to a low-temperature resistant electric control valve (112), and the low-temperature resistant electric control valve (112) is used to regulate the opening and closing of the inlet and outlet of the spray pipe (111) and to adjust the amount of dry ice sprayed from the spray pipe (111).

9. The gas turbine engine cleaning device according to claim 1, characterized in that: A plurality of negative pressure suction cups (700) are installed at the bottom of the scissor lift seat (100), and the negative pressure suction cups (700) are connected to the air inlet of the high-pressure air pump (102) via a negative pressure suction pipe.

10. A method for cleaning gas turbine engine equipment, using the method for cleaning gas turbine engine equipment according to any one of claims 1 to 9, characterized in that: The following steps are involved: S1. Push the scissor lift seat (100) as a whole to the front of the worm gear engine device, start the high-pressure gas pump (102) to deliver high-pressure gas to the inside of the gas delivery pipe (103) and the multi-way diverter valve (105), and divert the gas to the inside of the outer expansion telescopic pipe (108) through the multi-way diverter valve (105), and deliver the gas to the inside of the outer expansion telescopic pipe (108). The gas is delivered to the inside of the outer expansion telescopic pipe (108), so that the outer expansion telescopic pipe (108) expands and drives the inner delivery telescopic pipe (107) to extend to the inside of the worm gear engine; S2, when the inner layer delivery telescopic tube (107) is extended into the turbine engine, the dry ice particle making machine (101) is started to deliver the dry ice particles into the dry ice delivery tube (104) and then into the inner layer delivery telescopic tube (107) through the multi-way diverter valve (105), and the dry ice is evenly sprayed into the turbine engine through a plurality of spray pipes (111) outside the inner layer delivery telescopic tube (107); S3. After the dry ice is ejected in the original direction through the ejection pipe (111), the electromagnet (202) is started to drive the ejection pipe (111) to tilt, and the dry ice is ejected through the tilted ejection pipe (111). The dry ice is ejected through the tilted ejection pipe (111) to different positions inside the worm gear engine, and each dry ice ejection time is 2-3 seconds.

Citation Information

Patent Citations

  • An online dry ice cleaning device and method for aircraft engine cleaning.

    CN113731958B