CN114233410B - Cleaning device for fan and compressor blade of turbofan engine - Google Patents
Cleaning device for fan and compressor blade of turbofan engine Download PDFInfo
- Publication number
- CN114233410B CN114233410B CN202111552299.8A CN202111552299A CN114233410B CN 114233410 B CN114233410 B CN 114233410B CN 202111552299 A CN202111552299 A CN 202111552299A CN 114233410 B CN114233410 B CN 114233410B
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- Prior art keywords
- cleaning
- nozzle
- inlet
- engine
- fan
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- 238000004140 cleaning Methods 0.000 title claims abstract description 143
- 239000007788 liquid Substances 0.000 claims abstract description 37
- 210000001503 joint Anatomy 0.000 claims description 2
- 238000005507 spraying Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 2
- 238000011065 in-situ storage Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D25/00—Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
- F01D25/002—Cleaning of turbomachines
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/70—Suction grids; Strainers; Dust separation; Cleaning
- F04D29/701—Suction grids; Strainers; Dust separation; Cleaning especially adapted for elastic fluid pumps
- F04D29/703—Suction grids; Strainers; Dust separation; Cleaning especially adapted for elastic fluid pumps specially for fans, e.g. fan guards
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/70—Suction grids; Strainers; Dust separation; Cleaning
- F04D29/701—Suction grids; Strainers; Dust separation; Cleaning especially adapted for elastic fluid pumps
- F04D29/705—Adding liquids
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention discloses a cleaning device for a turbofan engine fan and a compressor blade, which comprises a high-pressure air source, an air valve, a cleaning liquid tank, a liquid valve, a header, an engine fan cleaning assembly and a compressor blade cleaning assembly, wherein the high-pressure air source is connected with the cleaning liquid tank through the air valve, an outlet of the cleaning liquid tank is connected with a cleaning liquid inlet of the header through the liquid valve, and a cleaning liquid outlet of the header is respectively connected with the engine fan cleaning assembly and the compressor blade cleaning assembly; the engine fan cleaning assembly comprises an inlet cleaning device and a first nozzle; the compressor blade cleaning assembly comprises a second nozzle and a third nozzle. The invention can meet the cleaning of the fan and the compressor blade of the engine, and the inlet cleaning device can be directly fixed at the inlet of the engine, thereby avoiding the manual spraying of cleaning liquid, reducing the risk of people being sucked into the air passage, realizing the clean cleaning of the fan and the compressor blade of the turbofan engine, reducing the labor intensity of workers and improving the cleaning quality.
Description
Technical Field
The invention belongs to the technical field of aviation equipment, and particularly relates to a cleaning device for a fan and a compressor blade of a turbofan engine.
Background
Because the turbofan engine faces to complex and changeable climatic environments (such as sea wind salt fog, gobi sand dust and the like) in the use process, the surface of an airflow channel is easy to corrode or form attachments after long-term use, the working efficiency of a fan and an air compressor is influenced, and the overall working efficiency of the engine is reduced.
The current measures for cleaning the engine airflow channel in situ of the aircraft are as follows: the cleaning solution is sprayed into the engine at the inlet of the engine by manpower, and the engine is operated to suck the cleaning solution, so that the cleaning solution is weakened after being cleaned by the front-stage blades of the compressor, the cleaning effect of the rear-stage blades is not ideal, the engine is required to be operated, the risk of sucking a person into the air inlet channel exists, the engine is required to be thoroughly cleaned, and the engine is required to be disassembled for cleaning, so that the cleaning process is relatively troublesome.
Disclosure of Invention
The invention aims to solve the problem of reduced engine efficiency caused by unclean surfaces of fan and compressor blades of a turbofan engine in a marine environment, and provides a cleaning device for the fan and compressor blades of the turbofan engine so as to realize in-situ cleaning of the fan and compressor blades of the turbofan engine.
The technical scheme of the invention is as follows:
the cleaning device for the fan and the compressor blade of the turbofan engine comprises a high-pressure air source, an air valve, a cleaning liquid tank, a liquid valve, a header, an engine fan cleaning component and a compressor blade cleaning component, wherein the high-pressure air source is connected with the cleaning liquid tank through the air valve, an outlet of the cleaning liquid tank is connected with a cleaning liquid inlet 5 of the header through the liquid valve, and a cleaning liquid outlet of the header is respectively connected with the engine fan cleaning component and the compressor blade cleaning component; the engine fan cleaning assembly comprises an inlet cleaning device and a first nozzle; the compressor blade cleaning assembly comprises a second nozzle and a third nozzle;
the outlet of the header is divided into four paths, wherein: the first path is connected with the inlet cleaning device, the second path is connected with the first nozzle, the third path is connected with the second nozzle, and the fourth path is connected with the third nozzle.
Preferably, the inlet cleaning device is adjustably and lockably mounted at the engine inlet, and the remaining cleaning nozzles extend from the respective viewing flaps into the engine interior and are secured to the engine outer housing by locking means.
Preferably, the inlet cleaning device comprises a first bracket, a second bracket, parallel rods, a connecting plate, screw rod seats, adjusting bolts, adjusting nuts, incomplete annular cleaning pipes and guide rods, wherein two hollow parallel rods are respectively arranged at two ends of the first bracket through fixing screws, guide rods which are in sliding fit with the two parallel rods are respectively arranged at two ends of the second bracket, the incomplete annular cleaning pipes are arranged between the two parallel rods, two ends of the incomplete annular cleaning pipes are of closed structures, inlets are arranged in the middle of the incomplete annular cleaning pipes, four outlets facing one-stage fan blades are distributed on pipelines of the incomplete annular cleaning pipes, one ends, close to the second bracket, of the two parallel rods are connected through the connecting plate, the screw rod seats are arranged on the connecting plate, one ends of the adjusting bolts penetrate through the screw rod seats and are provided with adjusting nuts, and one ends of the adjusting bolts are in butt joint with the second bracket.
Preferably, the external contact surfaces of the first bracket and the second bracket are arc-shaped surfaces, the external contact surface of the first bracket is positioned at two ends, and the external contact surface of the second bracket is positioned in the middle.
Preferably, the first bracket and the second bracket are respectively provided with a lightening hole.
Preferably, rubber buffer pads are arranged on the external contact surfaces of the first bracket and the second bracket.
Preferably, the locking mechanism comprises a base and a spring, the cleaning nozzle penetrates through the mounting hole and is welded on the base, and the spring is arranged at the bottom of the base.
According to the invention, the engine fan cleaning assembly and the compressor blade cleaning assembly are designed to meet the requirements of cleaning the engine fan and the compressor blade, and the inlet cleaning device in the engine fan cleaning assembly can be directly fixed at the engine inlet, so that the manual spraying of cleaning liquid is avoided, the risk of people being sucked into the air inlet channel is reduced, and the cleaning liquid can be used by the rear blade by extending the cleaning nozzle into the corresponding observation port cover, thereby realizing the clean cleaning of the fan and the compressor blade of the turbofan engine, reducing the labor intensity of workers and improving the cleaning quality.
Drawings
FIG. 1 is a schematic system diagram of a preferred embodiment of the present invention;
FIG. 2 is a schematic view of a cleaning process according to a preferred embodiment of the present invention;
FIG. 3 is a schematic view of a header according to a preferred embodiment of the present invention;
FIG. 4 is a cross-sectional view taken along line A-A of FIG. 3;
FIG. 5 is a schematic view of an inlet cleaning device according to a preferred embodiment of the present invention;
FIG. 6 is a schematic view of a locking mechanism according to a preferred embodiment of the present invention;
FIG. 7 is a top view of the locking mechanism in a preferred embodiment of the invention;
in the figure: the cleaning device comprises a high-pressure air source 1, an air valve 2, a cleaning solution tank 3, a liquid valve 4, a header 5, an inlet cleaning device 6, a first nozzle 7, a second nozzle 8, a third nozzle 9, a first-stage fan blade 10, a second-stage fan blade 11, a second-stage air compressor blade 12, a fourth-fifth-sixth-seventh-stage air compressor blade 13, a locking mechanism 14, a cleaning solution inlet 51, a cleaning solution outlet 52, a first bracket 61, a second bracket 62, a parallel rod 63, a connecting plate 64, a fixing screw 65, an adjusting bolt 66, an adjusting nut 67, an incomplete annular cleaning tube 68, a guide rod 69, a base 141, a spring 142, a mounting hole 143, a screw seat 641, an inlet 681 and an outlet 682.
Description of the embodiments
The present invention will be further described by way of the following examples, however, the scope of the present invention is not limited to the following examples.
Example 1: the cleaning device for the fan and the air compressor blade of the turbofan engine as shown in fig. 1-7 comprises a high-pressure air source 1, an air valve 2, a cleaning liquid tank 3, a liquid valve 4, a header 5, an engine fan cleaning component and an air compressor blade cleaning component, wherein the high-pressure air source 1 is connected with the cleaning liquid tank 3 through the air valve 2, an outlet of the cleaning liquid tank 3 is connected with a cleaning liquid inlet 51 of the header 5 through the liquid valve 4, and a cleaning liquid outlet 52 of the header 5 is respectively connected with the engine fan cleaning component and the air compressor blade cleaning component; the engine fan cleaning assembly comprises an inlet cleaning device 6 and a first nozzle 7; the compressor blade cleaning assembly comprises a second nozzle 8 and a third nozzle 9, wherein the inlet cleaning device 6 is used for cleaning a first-stage fan blade 10, the first nozzle 7 is used for cleaning a second-stage fan blade 11, the second nozzle 8 is used for cleaning a second-stage and a third-stage compressor blade 12, and the third nozzle 9 is used for cleaning a fourth-fifth-sixth-seventh-stage compressor blade 13; the outlet of the header 5 is divided into four paths, wherein: the first path is connected with the inlet cleaning device 6, the second path is connected with the first nozzle 7, the third path is connected with the second nozzle 8, and the fourth path is connected with the third nozzle 9.
As shown in fig. 2, the inlet cleaning device 6 is adjustably and lockably mounted at the engine inlet, and the remaining cleaning spouts extend from the respective viewing flaps into the engine interior and are secured to the engine outer case by a locking mechanism 14.
As shown in fig. 5, the inlet cleaning device 6 comprises a first bracket 61, a second bracket 62, parallel rods 63, a connecting plate 64, a screw seat 641, an adjusting bolt 66, an adjusting nut 67, an incomplete annular cleaning tube 68 and a guide rod 69, wherein two hollow parallel rods 63 are respectively arranged at two ends of the first bracket 61 through the fixing bolt 65, guide rods 69 which are in sliding fit with the interiors of the two parallel rods 63 are respectively arranged at two ends of the second bracket 62, an incomplete annular cleaning tube 68 is arranged between the two parallel rods 63, two ends of the incomplete annular cleaning tube 68 are in a closed structure, an inlet 681 is arranged in the middle of the incomplete annular cleaning tube 68, four outlets 682 facing the primary fan blade 10 are distributed on the pipeline of the incomplete annular cleaning tube 68, one ends of the two parallel rods 63 close to the second bracket 62 are connected through the connecting plate 64, a screw seat 641 is arranged on the connecting plate 64, one end of the adjusting bolt 66 penetrates through the screw seat 641 to be provided with the adjusting nut 67, one end of the adjusting bolt 66 is abutted with the second bracket 62, the first bracket 61 and the second bracket 62 can be respectively abutted against the inner wall of the front end of the engine housing through the adjusting bolt 66 and the adjusting nut 67, thereby the incomplete annular cleaning tube 68 is fixed,
preferably, the outer contact surfaces of the first bracket 61 and the second bracket 62 are arc-shaped surfaces, the outer contact surface of the first bracket 61 is positioned at two ends, and the outer contact surface of the second bracket 62 is positioned in the middle.
Preferably, the first bracket 61 and the second bracket 62 are provided with weight reducing holes, and the weight of the inlet cleaning device 6 can be reduced by arranging the weight reducing holes, thereby being convenient for installation and disassembly.
Preferably, rubber cushion pads are arranged on the external contact surfaces of the first bracket 61 and the second bracket 62, and the rigid contact between the brackets and the inner wall of the front end housing of the engine can be avoided by arranging the rubber cushion pads, so that damage is caused.
Preferably, the locking mechanism 14 comprises a base 141 and a spring 142, the cleaning nozzle passes through a mounting hole 143 and is welded on the base 141, the spring 142 is arranged at the bottom of the base 141, the cleaning nozzle is fixed by passing the base 141 through a kidney-shaped hole of the engine casing, contacting the spring to the inner wall of the engine and compressing the spring, and rotating the spring by 90 degrees, and the base 101 can be fixed on the engine casing.
The cleaning process comprises the following steps: the inlet cleaning device 6 is firstly fixed on the inner wall of the front end shell of the engine, and the first nozzle 7, the second nozzle 8 and the third nozzle 9 respectively extend into the engine from the corresponding observation covers and are fixed on the outer shell of the engine through the locking mechanism 14.
Fixing of the inlet cleaning device 6: the inlet cleaning device 6 is integrally placed in the front end shell of the engine, the first bracket 61 is placed on one side of the inner wall of the front end shell of the engine during installation, the adjusting bolt 66 is screwed down, the screw rod of the adjusting bolt 66 moves towards the second bracket 62, the screw rod contacts the second bracket 62 and pushes the second bracket 62 to expand, the position of the adjusting bolt is fixed through the adjusting nut 67, and the first bracket 61 and the second bracket 62 are expanded and fastened on the inner wall of the engine shell.
Fixing a cleaning nozzle: the base 141 is inserted through the kidney-shaped hole of the engine housing, the spring 142 is compressed by contacting the inner wall of the engine, and then the base 101 is fixed on the engine housing by rotating by 90 degrees, so that the cleaning nozzle is fixed.
During cleaning, the engine is operated, the liquid valve 4 and the air valve 2 are opened, high-pressure air in the high-pressure air source 1 enters the cleaning liquid tank 3, and the cleaning liquid is divided into four paths through the header 5 under the pressure of the air, wherein: the first path is connected with the inlet cleaning device 6, cleaning liquid enters an inlet 681 of the incomplete annular cleaning pipe 68 and is sprayed to the primary fan blade 10 through an outlet 682; the second path is connected with the first nozzle 7 and is sprayed to the secondary fan blade 11; the third path is connected with the second nozzle 8 and is sprayed to the second-third-stage compressor blade 12; the fourth path is connected with the third nozzle 9 and is sprayed to the fourth, fifth, sixth and seventh stages of compressor blades 13, and meanwhile the blades rotate and rub with cleaning liquid, so that the cleaning effect is achieved.
While the fundamental and principal features of the invention and advantages of the invention have been shown and described, it will be apparent to those skilled in the art that the invention is not limited to the details of the foregoing exemplary embodiments, but may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.
Claims (5)
1. The cleaning device for the turbofan engine fan and the compressor blade comprises a high-pressure air source, an air valve, a cleaning liquid tank, a liquid valve, a header, an engine fan cleaning component and a compressor blade cleaning component, and is characterized in that the high-pressure air source is connected with the cleaning liquid tank through the air valve, an outlet of the cleaning liquid tank is connected with a cleaning liquid inlet of the header through the liquid valve, and a cleaning liquid outlet of the header is respectively connected with the engine fan cleaning component and the compressor blade cleaning component; the engine fan cleaning assembly comprises an inlet cleaning device and a first nozzle; the compressor blade cleaning assembly comprises a second nozzle and a third nozzle;
the outlet of the header is divided into four paths, wherein: the first path is connected with the inlet cleaning device, the second path is connected with the first nozzle, the third path is connected with the second nozzle, and the fourth path is connected with the third nozzle; the inlet cleaning device is arranged at the inlet of the engine in an adjustable and locking way, and other cleaning nozzles extend into the engine from corresponding observation covers respectively and are fixed on the outer shell of the engine through a locking mechanism; the inlet cleaning device comprises a first support, a second support, parallel rods, a connecting plate, a screw rod seat, adjusting bolts, adjusting nuts, an incomplete annular cleaning pipe and guide rods, wherein two hollow parallel rods are respectively arranged at two ends of the first support through fixing screws, the guide rods which are in sliding fit with the two parallel rods are respectively arranged at two ends of the second support, the incomplete annular cleaning pipe is arranged between the two parallel rods, two ends of the incomplete annular cleaning pipe are of a closed structure, an inlet is arranged in the middle of the incomplete annular cleaning pipe, four outlets facing one-stage fan blades are distributed on a pipeline of the incomplete annular cleaning pipe, one ends, close to the second support, of the two parallel rods are connected through the connecting plate, the screw rod seat is arranged on the connecting plate, one end of each adjusting bolt penetrates through the screw rod seat and is provided with the adjusting nuts, and one end of each adjusting bolt is in butt joint with the second support.
2. The cleaning apparatus for turbofan engine fan and compressor blades of claim 1 wherein the outer contact surfaces of the first and second brackets are arcuate, the outer contact surface of the first bracket being at both ends and the outer contact surface of the second bracket being intermediate.
3. The cleaning apparatus for turbofan engine fan and compressor blades of claim 1 wherein said first and second brackets are each provided with lightening holes.
4. The cleaning apparatus for turbofan engine fan and compressor blades of claim 2 wherein the outer contact surfaces of the first and second brackets are each provided with a rubber cushion.
5. A cleaning apparatus for turbofan engine fan and compressor blades as defined in claim 1 wherein the locking mechanism comprises a base and a spring, the cleaning nozzle passing through the mounting hole and being welded to the base, the spring being provided at the bottom of the base.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111552299.8A CN114233410B (en) | 2021-12-17 | 2021-12-17 | Cleaning device for fan and compressor blade of turbofan engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111552299.8A CN114233410B (en) | 2021-12-17 | 2021-12-17 | Cleaning device for fan and compressor blade of turbofan engine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114233410A CN114233410A (en) | 2022-03-25 |
| CN114233410B true CN114233410B (en) | 2023-12-05 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111552299.8A Active CN114233410B (en) | 2021-12-17 | 2021-12-17 | Cleaning device for fan and compressor blade of turbofan engine |
Country Status (1)
| Country | Link |
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| CN (1) | CN114233410B (en) |
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| CN114233410A (en) | 2022-03-25 |
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