Flame tube carbon deposition removing device and method

Abstract

The invention belongs to the technical field of aero-engine combustion chamber cleaning, and relates to a flame tube carbon deposition removing device and method.The device comprises a high-pressure water system, the high-pressure water system is connected with a cleaning gun system, the cleaning gun system is connected with an engine flame tube, and the engine flame tube is connected with a carbon block turbid liquid removing device; the cleaning gun system comprises a high-pressure operation pipe and an auxiliary manipulator, the high-pressure operation pipe is connected with the high-pressure water system and arranged on the auxiliary manipulator, an automatic feeding device is arranged on the auxiliary manipulator, one end of the high-pressure operation pipe is fixed to the automatic feeding device, and the other end of the high-pressure operation pipe is connected with a cleaning nozzle. The cleaning nozzle is located at a to-be-cleaned part of the engine flame tube. Design is ingenious and compact, use is convenient, maintenance is easy, and manufacturing cost is low. The cleaning gun can conveniently enter and exit from the flame tube in a limited space, the cleaning requirements of the maximum flow, the target distance and the like can be met, and the optimal matching of the structural size and the technical performance parameters is achieved.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of cleaning the combustion chamber of an aero-engine, and relates to a device and method for removing carbon deposits from a flame tube. BACKGROUND

[0002] Carbon deposits on a flame tube are a common phenomenon in aero-gas turbine engines, and are closely related to the structure of the engine, the type of fuel, and the working conditions of the engine. For example, during use, if the oil-gas ratio at the head of the combustion chamber is too large, the combustion is incomplete, and carbon deposits are easily formed at the head. Carbon deposits are very harmful to the operation of the engine, for example, carbon deposits in the combustion chamber reduce the volume of the combustion chamber and increase the compression ratio, thereby causing knock, smoking after parking, and other frequent failures.

[0003] To this end, various methods are currently used: 1) manual mechanical cleaning method, which directly removes carbon deposits from the carbon deposit-attached surface by using a steel wire brush and other scraping methods. This method is not only time-consuming and labor-intensive, but also causes secondary damage to the surface of the part; 2) chemical solvent soaking method, which soaks carbon deposits in a softener for a long time and then manually peels off the carbon deposits. This method also causes damage to the surface of the part; 3) ultrasonic cleaning method, which requires soaking the part in a liquid phase. The use of this method is limited; 4) pneumatic sandblasting method, which mainly uses controlled gas pressure and abrasive to remove carbon deposits without damaging the surface of the part. This method has high requirements for the surrounding environment and is not suitable for the narrow operating space of the engine; 5) liquid sandblasting, which uses high-speed liquid flow as a means of spraying abrasive to achieve the effect of removing carbon deposits without damaging the body. However, the working sand liquid flow must be flushed clean again, which is not easy to achieve online cleaning; 7) dry ice cleaning, which uses an air compressor to spray dry ice particles onto the surface to be cleaned. The energy change of the solid dry ice particles causes sublimation, melting, etc., which rapidly freezes oil stains and residues, making them brittle and being peeled off. This is a new cleaning method, but it cannot remove thick carbon deposits. Most of the above carbon deposit removal operations require the flame tube to be removed from the engine for cleaning. The number of flame tubes on an airplane is large and difficult to disassemble, which not only increases maintenance costs, is time-consuming and labor-intensive, but also has very low efficiency. SUMMARY

[0004] The purpose of the present application is to provide a device and method for removing carbon deposits from a flame tube to solve the technical problem that existing carbon deposit removal methods need to be completed offline, the number of flame tubes on an airplane is large and difficult to disassemble, which not only increases maintenance costs, is time-consuming and labor-intensive, but also has very low efficiency. To achieve the above-mentioned purpose, the technical scheme of the present application is as follows: In a first aspect, the application discloses a device for removing carbon deposition of a flame tube, comprising: a high-pressure water system, the high-pressure water system being connected with a cleaning gun system, the cleaning gun system being connected with an engine flame tube, and the engine flame tube being connected with a carbon block suspension liquid removal device. The cleaning gun system comprises a high-pressure operation pipe and an auxiliary mechanical arm, the high-pressure operation pipe is connected with the high-pressure water system, and the high-pressure operation pipe is arranged on the auxiliary mechanical arm, the auxiliary mechanical arm is provided with an automatic feeding device, one end of the high-pressure operation pipe is fixed on the automatic feeding device, and the other end of the high-pressure operation pipe is connected with a cleaning nozzle, and the cleaning nozzle is located at a part to be cleaned of the engine flame tube.

[0005] Preferably, the high-pressure water system comprises a perfusion pump, one end of the perfusion pump is connected with a water tank, and the other end of the perfusion pump is connected with a high-pressure plunger pump, and the high-pressure plunger pump is connected with the cleaning gun system through a high-pressure water pipe.

[0006] Preferably, the cleaning gun system further comprises a foot valve, and the high-pressure water system is connected with the high-pressure operation pipe through the foot valve.

[0007] Preferably, the automatic feeding device comprises a base, a lead screw is arranged on the base, one end of the lead screw is provided with a support seat, the other end of the lead screw is connected with a motor, the support seat and the motor are respectively fixed at two ends of the base, a motor connecting plate is arranged between the motor and the base, a nut is arranged on the lead screw, the nut is connected with a sliding block, a guide rail matched with the sliding block is arranged on the base, and the high-pressure operation pipe is fixed on the sliding block.

[0008] Preferably, one end of the high-pressure operation pipe connected with the automatic feeding device is lower than the other end connected with the cleaning nozzle.

[0009] Preferably, the high-pressure operation pipe enters the inner cavity of the flame tube through a guide sleeve, and the guide sleeve is arranged and fixed along the shape of an outer engine cover and is installed on a fuel nozzle mounting seat.

[0010] Preferably, the cleaning nozzle is a radial double-hole water spraying nozzle, and the cleaning nozzle is automatically rotated and balanced in the middle; and the cleaning nozzle is threadedly connected with the high-pressure operation pipe.

[0011] Preferably, the carbon block suspension liquid removal device is connected with an engine nozzle mounting seat at the lower part of an engine outer casing, and a self-priming pump is used to remove the suspension liquid after cleaning to the outside of the engine.

[0012] In a second aspect, the application discloses a method for removing carbon deposition of a flame tube, which is implemented by using the device for removing carbon deposition of a flame tube according to any one of the above. The cleaning gun system is connected with the engine flame tube, the cleaning nozzle is introduced into the engine flame tube, and the engine flame tube is connected with the carbon block suspension liquid removal device. The high-pressure water system is started to provide a high-pressure water source, the high-pressure water source enters the engine flame tube along the high-pressure operation pipe and through the cleaning nozzle. Start auxiliary manipulator and automatic feeding device, control axial movement of high pressure operation pipe, make cleaning nozzle rotate and move axially; After cleaning, reduce water pressure of high pressure water system, close auxiliary manipulator and automatic feeding device, and remove cleaning nozzle. Carbon block suspension liquid removal device removes cleaned suspension liquid outside engine; cold start engine removes cleaned carbon block outside engine through nozzle mounting hole at bottom of outer engine case.

[0013] Preferably, the high pressure water system is connected with the high pressure operation pipe through a foot valve; the foot valve controls the high pressure water source to enter the high pressure operation pipe.

[0014] Compared with the prior art, the present application has the following beneficial effects: 1) The cleaning gun has a compact and ingenious structure, is convenient to use, simple to maintain, and low in manufacturing cost; the cleaning gun can be conveniently moved in and out of the flame tube in limited space, and can meet the cleaning requirements of maximum flow and target distance, so that the optimal matching of structure size and technical performance parameters is achieved; and the cleaning device has the function of online cleaning of carbon deposition in the flame tube after being connected with the upper computer; 2) The cleaning device uses high pressure pure water as the cleaning medium, can realize the stripping of carbon deposition in the combustion chamber by the kinetic energy of water, replaces the traditional operation method, liberates labor, saves energy and reduces consumption, and is pollution-free. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments, and it should be understood that the following drawings only show some embodiments of the present application, and should not be regarded as a limitation on the scope, and other related drawings can be obtained by those skilled in the art without creative labor on the premise of not paying.

[0016] Figure 1 The figure is a device structure schematic diagram of the embodiment of the present application; Figure 2 The figure is an automatic feeding device structure schematic diagram of the embodiment of the present application; Figure 3 The figure is a cleaning nozzle structure schematic diagram of the embodiment of the present application.

[0017] 1-high pressure water system; 2-engine flame tube; 3-carbon block suspension liquid removal device; 4-high pressure operation pipe; 5-auxiliary manipulator; 6-automatic feeding device; 601-supporting seat; 602-screw; 603-sliding block; 604-fixing seat; 605-coupling; 606-motor; 607-motor connecting plate; 608-base; 609-guide rail; 610-nut; 7-cleaning nozzle; 8-high pressure water pipe; 9-foot valve. DETAILED DESCRIPTION

[0018] In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the following will clearly and completely describe the technical solutions in the embodiments of the present application with reference to the accompanying drawings. Obviously, the described embodiments are only some but not all of the embodiments of the present application. The components of the embodiments of the present application described and shown in the accompanying drawings can be arranged and designed in various different configurations.

[0019] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but only represents selected embodiments of the present application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present application without creative work are within the scope of protection of the present application.

[0020] It should be noted that: similar reference numerals and letters represent similar items in the following drawings, therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0021] In the description of the embodiments of the present application, it should be noted that if the terms "upper", "lower", "horizontal", "inner" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship when the product of the present application is used, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second" and the like are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0022] In addition, if the term "horizontal" appears, it does not mean that the component must be absolutely horizontal, but can be slightly inclined. For example, "horizontal" only means that its direction is relatively more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined.

[0023] In the description of the embodiments of the present application, it should also be noted that unless otherwise explicitly specified and limited, if the terms "arrangement", "installation", "connection", "connection" appear, they should be understood in a broad sense, for example, they can be fixedly connected, or detachably connected, or integrally connected; can be mechanically connected, or electrically connected; can be directly connected, or indirectly connected through an intermediate medium, or the communication inside two elements. For those of ordinary skill in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0024] The present application will be described in further detail below with reference to the accompanying drawings: See Figure 1 The application discloses a flame tube carbon deposition removing device, which comprises a high-pressure water system 1, a cleaning gun system connected with the high-pressure water system 1, an engine flame tube 2 connected with the cleaning gun system and a carbon block suspension liquid removing device 3 connected with the engine flame tube 2. The cleaning gun system comprises a high-pressure operation pipe 4 connected with the high-pressure water system 1 and arranged on an auxiliary mechanical arm 5, and an automatic feeding device 6 arranged on the auxiliary mechanical arm 5, wherein one end of the high-pressure operation pipe 4 is fixed on the automatic feeding device 6, and the other end is connected with a cleaning nozzle 7 located at a part to be cleaned of the engine flame tube.

[0025] In some embodiments, the high-pressure water system 1 comprises a perfusion pump, one end of which is connected with a water tank, and the other end of which is connected with a high-pressure plunger pump connected with the cleaning gun system through a high-pressure water pipe 8.

[0026] In some embodiments, the high-pressure water system adopts tap water or cleaning liquid as the cleaning medium, and is powered by 380V / 50HZ alternating current. The high-pressure water system is composed of a low-pressure water supply system, a water tank, an ultra-high-pressure plunger pump system, a filtering system, an electric control system and the like, and can meet the requirements of low pressure (20-30MPa) and small flow for cleaning the carbon deposition of fuel nozzles and the requirements of high pressure (180MPa) and large flow for removing the carbon deposition of the flame tube.

[0027] In some embodiments, the cleaning gun system further comprises a foot valve 9, and the high-pressure water system 1 is connected with the high-pressure operation pipe 4 through the foot valve 9.

[0028] In some embodiments, the cleaning gun system is installed on the original engine nozzle mounting seat on the rear engine case, and the cleaning nozzle enters the flame tube through a hole in the center of a vortex generator of the head of the flame tube to perform cleaning work. The cleaning gun has the functions of rotation and axial movement. The cleaning gun head is provided with radial double-hole water spraying, and is automatically rotated and balanced in the center, so that the carbon block and the suspension liquid are prevented from entering the rear turbine of the flame tube due to water flow impact.

[0029] In some embodiments, see Figure 2The automatic feeding device 6 comprises a base 608, a screw rod 602 arranged on the base 608, a support seat 601 arranged at one end of the screw rod 602, a motor 606 connected to the other end of the screw rod 602, the support seat 601 and the motor 606 being fixed at two ends of the base 608 respectively, a motor connecting plate 607 arranged between the motor 606 and the base 608, a nut 610 arranged on the screw rod 602, a sliding block 603 connected to the nut 610, a guide rail 609 arranged on the base 608 and matched with the sliding block 603, and the high-pressure operation pipe 4 being fixed on the sliding block 603. The axial movement speed of the cleaning nozzle is controllable, and then the size of the carbon particles is controlled, so that the carbon particles are easily discharged. The mechanism is fixed on the auxiliary manipulator, and the automatic feeding of the cleaning nozzle is realized by using an intelligent adjustable servo system. The transmission process is as follows: servo motor, screw rod, nut, cleaning nozzle positioning, reciprocating movement and speed adjustment.

[0030] Further preferably, the automatic feeding device 6 is fixed on the auxiliary manipulator 5 through the fixing seat 604, and the screw rod 602 is connected to the output shaft of the motor 606 through the shaft coupling 605.

[0031] In some embodiments, the auxiliary manipulator: ensures that the high-pressure operation pipe can freely move with the cleaning gun, is not blocked, does not affect the normal working state of the automatic feeding mechanism and the cleaning gun, and does not cause damage to the sliding friction of the pipeline on the bottom surface. The auxiliary manipulator is composed of a lifting device, a module fixing device, a pipeline towing device, a high-pressure operation pipe guiding device, a pipe vibration and wear protection device and the like, effectively ensuring that the cleaning gun is adjustable in height, the pipe is not worn, and the cleaning work of the cleaning gun is stable and reliable. The automatic feeding device 6 body is fixed on the telescopic support; the high-pressure operation pipe is fixed on the sliding block of the automatic feeding mechanism, and enters the flame tube through the guide pipe along the engine outer cover. The automatic feeding device 6 is slightly lower than the center of the engine, and the movement direction of the sliding block is basically perpendicular to the ground; the guide pipe passes through the cleaning nozzle guiding device from the highest position of the sliding block along the engine outer cover from bottom to top, and then transitions along the tail of the flame tube to the end, and is fixed on the engine outer cover.

[0032] In some embodiments, the high-pressure operation pipe adopts imported high-polymer resin high-pressure hose as the cleaning pipeline, has good toughness, small volume expansion, and can guide the high-pressure water into the combustion chamber through the channel of the bay area, and then into the flame tube through the guide pipe. The lifting frame can be conveniently shifted according to different positions of the flame tube, and the automatic feeding device drives the high-pressure hose and the nozzle to reciprocate to remove the carbon deposition in the flame tube.

[0033] In some embodiments, the high-pressure operation pipe 4 enters the inner cavity of the flame tube through the guide sleeve; the guide sleeve is arranged and fixed along the shape of the engine outer cover, and is installed on the fuel nozzle mounting seat. The guide pipe: has a certain flexibility, is arranged and fixed along the shape of the engine outer cover, and extends to the fuel nozzle mounting seat.

[0034] In some embodiments, one end (low position) of the high-pressure working pipe is fixed on the slider of the automatic feeding mechanism through the connecting device, and the axial reciprocating movement of the cleaning nozzle is realized by controlling the movement of the slider through the automatic feeding mechanism. The other end (high position) of the high-pressure working pipe passes through the guide sleeve to connect the cleaning nozzle, and the guide pipe has a certain flexibility and is arranged along the shape of the outer cover of the engine and is fixed to extend to the fuel nozzle mounting seat. The section of the working pipe connected to the nozzle enters the inner cavity of the flame tube, and the reciprocating movement of the high-pressure working pipe in the positioning and guiding device of the guide sleeve and the cleaning nozzle is driven by the movement of the slider controlled by the automatic feeding mechanism, so that the axial reciprocating movement of the cleaning nozzle in the inner cavity of the flame tube is realized.

[0035] In some embodiments, referring to Figure 3 , the cleaning nozzle 7 is a radial double-hole water jet nozzle and is automatically rotated and balanced in the middle; the cleaning nozzle 7 is threadedly connected with the high-pressure working pipe 4.

[0036] In some embodiments, the carbon block suspension liquid removal device 3 is connected with the engine nozzle mounting seat at the lower part of the outer cover of the engine, and the cleaned suspension liquid is removed to the outside of the engine through the self-priming pump. The carbon block suspension liquid removal system: the carbon block suspension liquid flows into the inner wall of the outer cover through the air hole on the flame tube, the nozzle of the system is connected to the engine nozzle mounting seat at the lower part of the outer cover of the engine and is removed and fixed during operation, and the cleaned suspension liquid can be removed to the outside of the engine through the self-priming pump through 18 mm solid particles; the cleaned carbon block can be removed to the outside of the engine through the nozzle mounting hole at the bottom of the outer cover through the cold start of the engine, so that the cleaning effect is achieved.

[0037] The application also discloses a method for removing carbon deposition from a flame tube, which is realized by using the carbon deposition removal device according to any one of the application. The cleaning gun system is connected with the engine flame tube 2, the cleaning nozzle 7 is introduced into the engine flame tube 2, and the engine flame tube 2 and the carbon block suspension liquid removal device 3 are connected; The high-pressure water system 1 is started to provide a high-pressure water source, the high-pressure water source passes through the cleaning nozzle 7 into the engine flame tube 2 along the high-pressure working pipe 4; The auxiliary mechanical hand 5 and the automatic feeding device 6 are started to control the axial movement of the high-pressure working pipe 4, so that the cleaning nozzle 7 rotates and moves axially; After cleaning, the water pressure of the high-pressure water system 1 is lowered, the auxiliary mechanical hand 5 and the automatic feeding device 6 are turned off, and the cleaning nozzle 7 is removed; The carbon block suspension liquid removal device 3 removes the cleaned suspension liquid to the outside of the engine; the cleaned carbon block is removed to the outside of the engine through the nozzle mounting hole at the bottom of the outer cover through the cold start of the engine.

[0038] In some embodiments, the high-pressure water system 1 is connected with the high-pressure working pipe 4 through the foot valve 9, and the high-pressure water source enters the high-pressure working pipe 4 through the foot valve 9.

[0039] The cleaning device uses tap water or cleaning liquid as the cleaning medium, and is powered by a 380V / 50HZ motor / diesel engine AC power supply. The high-pressure water system is introduced into the workshop through a 50m high-pressure pipe, and the control system is powered by the 220V plugboard in the workshop. The high-pressure water system pumps water from the water tank through a filter and pressurizes it to the target pressure. The high-pressure pipe sprays the high-pressure water through the cleaning gun system to the carbon deposition area in the inner cavity of the flame tube and the carbon deposition area of the fuel nozzle. The impact force of the high-pressure water stream is used to break up and remove the carbon deposition. During the cleaning process, carbon blocks and suspended liquids are prevented from entering the turbine at the rear of the flame tube due to the impact of the water stream. The carbon blocks and suspended liquids fall onto the inner wall of the outer casing through the air holes in the flame tube, and finally the suspended liquids are removed through the small holes at the lower part of the outer casing. The carbon blocks are removed by starting the engine, achieving the cleaning effect.

[0040]

EMBODIMENT

[0041] The high-pressure pipe sprays the high-pressure water through the cleaning gun system to the carbon deposition area in the inner cavity of the flame tube, and the impact force of the high-pressure water stream is used to break up and remove the carbon deposition. The high-pressure water system pumps water from the water tank through a filter and pressurizes it to the target pressure, and then the high-pressure cleaning gun system enters the engine flame tube to perform cleaning work. The carbon blocks and suspended liquids fall onto the inner wall below the combustion chamber through the air holes in the flame tube, and finally the suspended liquids are removed by the cleaning liquid removal device through the lower nozzle mounting hole. The carbon blocks are filtered and collected, and the cleaning liquid is discharged into a sewage tank for treatment. The cleaning sewage flows out of the engine through the carbon block and suspended liquid removal system at the fuel nozzle port at the bottom of the engine combustion chamber outer sleeve, flows into a sewage collection tank through a hose, and is subjected to carbon block and sewage separation treatment. After cleaning is completed, the engine is subjected to cold blowing operation to blow off the residual water in the engine.

[0042] The above is only a preferred embodiment of the present application and is not intended to limit the present application. Those skilled in the art can make various modifications and changes to the present application. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A carbon removal device for a flame tube, characterized in that, include: High-pressure water system (1), high-pressure water system (1) is connected to cleaning gun system, cleaning gun system is connected to engine flame tube (2), engine flame tube (2) is connected to carbon block suspension discharge device (3). The cleaning gun system includes a high-pressure working pipe (4) and an auxiliary manipulator (5). The high-pressure working pipe (4) is connected to the high-pressure water system (1), and the high-pressure working pipe (4) is mounted on the auxiliary manipulator (5). An automatic feeding device (6) is mounted on the auxiliary manipulator (5). One end of the high-pressure working pipe (4) is fixed on the automatic feeding device (6), and the other end is connected to a cleaning nozzle (7). The cleaning nozzle (7) is located at the part of the engine flame tube to be cleaned.

2. The flame tube carbon removal device according to claim 1, characterized in that, The high-pressure water system (1) includes: an injection pump, one end of which is connected to a water tank and the other end is connected to a high-pressure plunger pump, which is connected to the cleaning gun system through a high-pressure water pipe (8).

3. The flame tube carbon removal device according to claim 1, characterized in that, The cleaning gun system also includes a foot valve (9), and the high-pressure water system (1) is connected to the high-pressure working pipe (4) through the foot valve (9).

4. The flame tube carbon removal device according to claim 1, characterized in that, The automatic feeding device (6) includes: a base (608), a lead screw (602) is provided on the base (608), a support seat (601) is provided at one end of the lead screw (602), and a motor (606) is connected to the other end. The support seat (601) and the motor (606) are respectively fixed at both ends of the base (608). A motor connecting plate (607) is provided between the motor (606) and the base (608). A nut (610) is provided on the lead screw (602), and a slider (603) is connected to the nut (610). A guide rail (609) adapted to the slider (603) is provided on the base (608). A high-pressure working pipe (4) is fixed on the slider (603).

5. The flame tube carbon removal device according to claim 1, characterized in that, The end of the high-pressure working pipe (4) connected to the automatic feeding device (6) is lower than the end connected to the cleaning nozzle (7).

6. The carbon removal device for a flame tube according to claim 1, characterized in that, The high-pressure working pipe (4) enters the inner cavity of the flame tube through the guide sleeve; the guide sleeve is fixed in the outer shape of the engine cover and is installed on the fuel nozzle mounting seat.

7. The flame tube carbon removal device according to claim 1, characterized in that, The cleaning nozzle (7) is a radial double-hole water spray nozzle that automatically rotates and is balanced in the center; the cleaning nozzle (7) is threadedly connected to the high-pressure working pipe (4).

8. The carbon removal device for a flame tube according to claim 1, characterized in that, The carbon block suspension removal device (3) is connected to the engine nozzle mounting seat at the bottom of the engine outer casing and removes the cleaned suspension to the outside of the engine through a self-priming pump.

9. A method for removing carbon deposits from a flame tube, characterized in that, The carbon removal device for the flame tube as described in any one of claims 1 to 8 is used, comprising: Connect the cleaning gun system to the engine flame tube (2), introduce the cleaning nozzle (7) into the engine flame tube (2), and connect the engine flame tube (2) and the carbon block suspension removal device (3). The high-pressure water system (1) is started, providing a high-pressure water source. The high-pressure water source enters the engine flame tube (2) through the cleaning nozzle (7) along the high-pressure working pipe (4). Start the auxiliary manipulator (5) and the automatic feeding device (6) to control the axial movement of the high-pressure working pipe (4), so that the cleaning nozzle (7) rotates and moves axially; After the cleaning meets the standards, reduce the water pressure of the high-pressure water system (1), turn off the auxiliary manipulator (5) and the automatic feeding device (6), and remove the cleaning nozzle (7). The carbon block suspension removal device (3) discharges the cleaned suspension to the outside of the engine; when the engine is cold-started, the cleaned carbon blocks are discharged to the outside of the engine through the nozzle mounting hole at the bottom of the outer casing.

10. A method for removing carbon deposits from a flame tube according to claim 9, characterized in that, The high-pressure water system (1) is connected to the high-pressure working pipe (4) through a foot valve (9); the foot valve (9) controls the high-pressure water source to enter the high-pressure working pipe (4).

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