CN117225797A - Cleaning system of aeroengine - Google Patents
Cleaning system of aeroengine Download PDFInfo
- Publication number
- CN117225797A CN117225797A CN202311507232.1A CN202311507232A CN117225797A CN 117225797 A CN117225797 A CN 117225797A CN 202311507232 A CN202311507232 A CN 202311507232A CN 117225797 A CN117225797 A CN 117225797A
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- Prior art keywords
- cleaning
- water
- head
- blade
- engine blade
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- 238000004140 cleaning Methods 0.000 title claims abstract description 144
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 88
- 238000005406 washing Methods 0.000 claims abstract description 9
- 239000007921 spray Substances 0.000 claims abstract description 6
- 238000011010 flushing procedure Methods 0.000 claims description 51
- 238000001914 filtration Methods 0.000 claims description 13
- 238000003860 storage Methods 0.000 claims description 10
- 230000013011 mating Effects 0.000 claims description 8
- 230000000694 effects Effects 0.000 abstract description 14
- 238000010992 reflux Methods 0.000 abstract description 7
- 239000002699 waste material Substances 0.000 abstract description 4
- 238000000034 method Methods 0.000 description 12
- 239000007788 liquid Substances 0.000 description 11
- 230000008569 process Effects 0.000 description 10
- 238000001125 extrusion Methods 0.000 description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 3
- 230000009471 action Effects 0.000 description 3
- 229910052799 carbon Inorganic materials 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 239000012459 cleaning agent Substances 0.000 description 3
- 230000008021 deposition Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000005507 spraying Methods 0.000 description 3
- 230000005684 electric field Effects 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 238000005192 partition Methods 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 241000238631 Hexapoda Species 0.000 description 1
- 150000001298 alcohols Chemical class 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002457 bidirectional effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011086 high cleaning Methods 0.000 description 1
- 230000002209 hydrophobic effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000010926 purge Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Landscapes
- Cleaning By Liquid Or Steam (AREA)
Abstract
The invention relates to the technical field of cleaning equipment, in particular to a cleaning system of an aeroengine, which comprises a frame body and a cleaning frame, wherein a fixing piece for fixing and driving an engine blade to rotate is arranged on the frame body; the cleaning frame comprises a cleaning unit and a reflux unit, wherein the cleaning unit and the reflux unit can respectively extend to the upper part and the lower part of the engine blade, the cleaning unit comprises a first cleaning head capable of cleaning the front surface of the engine blade and a second cleaning head capable of cleaning the back surface of the adjacent engine blade, and the first cleaning head and the second cleaning head can spray cleaning water to the engine blade. According to the invention, the front and the back of the engine blade can be respectively washed by arranging the first washing head and the second washing head, the engine blade can be automatically rotated after the corresponding blade is washed, the degree of automation is high, the cleaning effect is good, the cleaned cleaning water can be used for a second time after being filtered by arranging the reflux unit, and the resource waste is reduced.
Description
Technical Field
The invention relates to the technical field of cleaning equipment, in particular to a cleaning system of an aeroengine.
Background
Because the aeroengine is directly faced in the flight direction, dirt which is easy to adhere to dust, insects and the like can be stranded on the blades in the long-time flight process, and a large amount of carbon deposition is adhered to the rear side of the end face of the blades of the engine due to high-speed rotation of the engine, if the air engine is not cleaned, certain resistance is brought to rotation of the blades, and power consumption required by rotation is increased.
The prior art discloses a Chinese invention patent with the bulletin number of CN115156153B, the patent name of which is a wind-electric field cooperative regulation and control spray cleaning device for aero-engine blades and a working method thereof, and particularly discloses an annular spray electrostatic device, an annular electrode, a hydrophobic flow passage and a cleaning liquid recovery and circulation system which are coupled with the wind-electric field; the device firstly attaches a part of cleaning liquid drops which are crushed by static electricity on the front surface of the blade through a wind field to clean the blade; then, the other part of charged cleaning liquid droplets are sent into the aeroengine by adjusting the spraying angle, and then the charged cleaning liquid droplets move directionally along with the electric field and are attached to the back of the fan blade of the engine, so that the effect of cleaning the back of the blade is realized.
The scheme occupies smaller space and is convenient to operate; the cleaning agent can effectively save the consumption of the cleaning agent, and has the advantages of low cost, high cleaning efficiency and the like; and the cleaning liquid recycling system is used for recycling the cleaning waste liquid, and the waste liquid is reused by filtering.
However, in the above scheme, the cleaning liquid is moved to the back of the blade through the electric field movement, and the whole blade has a certain radian, so that the moving process has a certain difficulty, the rear side of the blade is more carbon deposition layers, and the cleaning effect achieved by simply sliding the liquid drop on the surface of the pollution layer is very limited, so that the cleaning device is only suitable for some slightly dirty blades, and has poor cleaning effect on the working conditions of thicker carbon deposition layers and wider distribution surfaces.
Accordingly, a purging system for an aircraft engine is proposed to solve the above-mentioned problems.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides a cleaning system of an aeroengine, which can effectively solve the problem of unsatisfactory cleaning effect in the prior art.
In order to achieve the above purpose, the invention is realized by the following technical scheme:
the invention provides a cleaning system of an aeroengine, which comprises a frame body and a cleaning frame, wherein a fixing piece for fixing and driving an engine blade to rotate is arranged on the frame body; the cleaning frame comprises a cleaning unit and a backflow unit, wherein the cleaning unit can extend to the upper part and the lower part of the engine blade respectively, the cleaning unit comprises a first cleaning head capable of cleaning the front surface of the engine blade and a second cleaning head capable of cleaning the back surface of the adjacent engine blade, the first cleaning head and the second cleaning head can spray cleaning water to the engine blade, the backflow unit is used for collecting the cleaning water dropped from the engine blade, and the backflow unit is communicated with the second cleaning head through a filtering unit; the flushing surface of the second flushing head is opposite to the back surface of the engine blade, and the second flushing head is elastically hinged on the frame body and can swing towards one side far away from the axial center direction of the engine blade.
Further, the frame body further comprises a water storage tank, and the first flushing head is communicated with the water storage tank through a water supply pipeline.
Further, a push rod capable of moving back and forth towards one side of the swinging direction of the second flushing head is arranged on the frame body, the push rod is inclined towards one end of the second flushing head, the outer end face of the second flushing head is located on the moving path of the push rod inclined face, and the second flushing head can be driven to swing when the push rod abuts against the outer end face of the second flushing head.
Further, a driving frame capable of reciprocating towards the direction of the engine blade is arranged on the frame body, a deflector rod is vertically arranged at the bottom of the push rod, and the deflector rod is located on the moving path of the driving frame.
Further, one side of the fixing piece far away from the engine blade is provided with a roller capable of rotating unidirectionally, a C-shaped adapter frame with a concave surface facing the direction of the engine blade is arranged in the frame body, a first bevel gear is sleeved on the outer side of the roller, a second bevel gear meshed with the first bevel gear is rotatably arranged at the bottom end of the C-shaped adapter frame, and the driving frame can be matched with the second bevel gear intermittently and drive the second bevel gear to rotate unidirectionally.
Further, a driving gear is rotatably arranged on the C-shaped adapter frame and above the second bevel gear, a toothed plate meshed with the driving gear is arranged on the driving frame, and the second bevel gear is driven to rotate when the toothed plate contacts the driving gear.
Further, the upper end of the second bevel gear is provided with a matching block which can elastically stretch up and down, the upper end of the matching block is an inclined plane, the bottom of the driving gear is vertically provided with a pin rod, and the inclined plane of the upper end of the matching block is positioned on the moving path of the pin rod.
Further, a filter bin is further arranged at the bottom of the frame body, the filter bin is communicated with the backflow unit, and a filter screen is arranged between the filter bin and the backflow unit; wherein the driving frame is also provided with a sponge block which is contacted with the cleaning water in the filtering bin, the upper end part of the sponge block is provided with a water drawing net, the upper end of the water drawing net is provided with a water collecting area near one end of the engine blade, and the water collecting area can be communicated with the water storage tank and/or the second flushing head.
Further, the sponge block is rectangular, and one side end surface of the filtering bin, which faces the sponge block, is an inclined surface which inclines from top to bottom.
Further, a plurality of water collecting depressions communicated with the water collecting area are arranged on the end face of the water drawing net at intervals, and a plurality of water passing holes communicated with the inside of the filtering bin are arranged in at least one water collecting depression.
Compared with the known public technology, the technical scheme provided by the invention has the following beneficial effects:
according to the invention, the front and the back of the engine blade can be respectively washed by arranging the first washing head and the second washing head, and the engine blade can be automatically rotated after the corresponding blade is washed, so that the degree of automation is high, and the cleaning effect is good;
the cleaning water after cleaning can be used for the second time after being filtered through the arrangement of the reflux unit, so that the resource waste is reduced;
the one-way intermittent rotation of the engine blade can be realized through the arrangement of the driving frame, and the flushing angle of the second flushing head can be changed, so that the edge part and the root part of the back surface of the blade are flushed, and the cleaning effect on the back surface of the blade is good;
in addition to the primary filtration of the used cleaning water by the sponge block, the exuded water can be reused as cleaning water by squeezing.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It is evident that the drawings in the following description are only some embodiments of the present invention and that other drawings may be obtained from these drawings without inventive effort for a person of ordinary skill in the art.
FIG. 1 is a schematic diagram of the overall structure of an embodiment of the present invention;
FIG. 2 is a schematic side view of the overall structure of an embodiment of the present invention;
FIG. 3 is a schematic bottom view of the overall structure of an embodiment of the present invention;
FIG. 4 is a schematic view of a cleaning unit according to an embodiment of the present invention;
FIG. 5 is a schematic diagram of the structure shown in FIG. 4A according to an embodiment of the present invention;
FIG. 6 is a schematic view of a roller driving structure according to an embodiment of the present invention;
FIG. 7 is an exploded view of the mating structure of the drive gear and the second bevel gear according to an embodiment of the present invention;
FIG. 8 is a schematic view of a structure (latch assembly) of a connecting frame according to an embodiment of the present invention;
FIG. 9 is a schematic side view of a dual C-shaped adaptor rack according to an embodiment of the present invention;
FIG. 10 is a schematic side cross-sectional view of a filter cartridge in accordance with an embodiment of the invention;
FIG. 11 is a schematic diagram of a water scooping net according to an embodiment of the present invention;
fig. 12 is a schematic view of a structure with an elastic plate at the rear side of a sponge block according to an embodiment of the present invention.
Reference numerals in the drawings represent respectively: 1. a frame body; 11. a fixing member; 111. a roller; 112. a first bevel gear; 12. c-shaped transfer frame; 121. a second bevel gear; 122. a drive gear; 123. a mating block; 124. a pin rod; 13. a filtering bin; 131. a filter screen; 14. a water drawing net; 141. water collecting depression; 142. a water passing hole; 2. a cleaning frame; 21. a cleaning unit; 211. a first rinse head; 212. a second rinse head; 22. a reflow unit; 3. a water storage tank; 4. a drive rack; 41. a push rod; 411. a deflector rod; 42. a toothed plate; 421. latch teeth; 43. sponge block.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. It will be apparent that the described embodiments are some, but not all, embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The invention is further described below with reference to examples.
Examples: among the traditional cleaning device to engine blade, mainly divide into two kinds of cleaning means, one kind is directly washes engine blade's front, and this kind of cleaning means is comparatively weak to engine blade's back cleaning effect, and the second kind is whole to be detached engine blade and is put into insulating cleaning pond and soak, and this kind of cleaning mode is comparatively loaded down with trivial details.
Because the aircraft body is not exposed out of the blades of the aircraft engine, the outer parts of the blades are usually protected by the bullet-shaped blade bins, so that the working space which can be provided is very limited, a flushing means with good effect is required to be applied to the back surfaces of the blades, the problem of space arrangement of how to extend the flushing heads into the inner parts of the blade bins is solved, and meanwhile, whether the spraying route can interfere with the cleaning spraying route on the front surfaces of the blades or not is also considered, so that the cleaning effect is influenced.
To this end, the present disclosure proposes a cleaning system for an aeroengine, referring to fig. 1-12, mainly comprising two parts of a frame body 1 and a cleaning frame 2, wherein one side of the frame body 1 facing an engine blade is provided with a cleaning frame 2 which can extend into a gap between the engine blade and a blade bin, the cleaning frame 2 comprises two parts, and the two parts can be respectively moved to the upper end and the lower end of the engine blade.
Specifically, the cleaning rack 2 includes a cleaning unit 21 and a reflow unit 22 that can extend to the top and the bottom of the engine blade, the cleaning unit 21 includes a first cleaning head 211 that can clean the front of the engine blade and a second cleaning head 212 that can clean the back of the adjacent engine blade, it is worth noting that the engine blade in this case is flat, and the blade body is turned over in a certain rotation direction, and both the front and the back of the blade have a certain streamline radian.
If the front and the back of the engine blade are provided with the jet heads which are symmetrically arranged in a plane, the liquid sprayed by the jet heads facing the front can flow under the action of gravity and water impact force towards the lower part of the end face of the blade, the cleaning surface through which the cleaning water flows down from the front and the received flushing force are relatively good, but the corresponding part of the jet head facing the back is close to the upper part of the blade, if the flushing force is large, the water flow can splash out of the blade bin, if the flushing force is small, the water flow can flow towards the outer edge direction of the blade under the action of gravity, and the cleaning effect of the root of the corresponding blade is not ideal.
For this purpose, the first and second flushing heads 211, 212 can spray cleaning water to the engine blade, while the flushing surface of the second flushing head 212 is opposite to the back surface of the engine blade, and is elastically hinged to the frame body 1 and can swing toward the side away from the axial direction of the engine blade.
Each flushing head is internally provided with a suction structure and is communicated with a water supply source through a water pipe.
More specifically, the blade on the engine impeller is provided with a vertically upward blade, the cleaning surface of the first cleaning head 211 is right opposite to the front surface of the blade, the first cleaning head 211 is right opposite to the left upper end of the blade in the direction opposite to the engine impeller, the water flows along the direction of the right upper end and the whole end surface of the blade, the cleaning effect is better, the second cleaning head 212 is provided with two cleaning states, one of the states is vertically downward, but the second cleaning head 212 and the first cleaning head 211 are not arranged side by side, the cleaning surface of the second cleaning head 212 is vertically downward in the direction of the front surface facing the back surface of the impeller, the cleaning surface of the second cleaning head 212 is vertically downward in the direction of the right side of the outer edge of the blade adjacent to the engine blade corresponding to the first cleaning head 211, the water flow will impact the outer edge direction of the blade (back surface) at first, and because the streamline direction of the blade back surface is impacted towards the sitting left lower direction, the second flushing head 212 in this state will flush the outer edge of the blade and the end surface close to the middle part of the blade, and the second flushing head 212 in this case can change its orientation, and is based on the direction after the blade rotates a certain angle, after that, the original orientation of the second flushing head 212 will change from the outer edge of the blade to the root direction of the blade, there will also be a flushing process to the root of the blade, because the flushing force of the whole second flushing head 212 does not change, therefore the process of thoroughly flushing the blade back surface is performed under the same flushing force.
Specifically, in this case, the upper end of the second flushing head 212 is elastically hinged to the frame body 1 through a pin, and a plane in which the rotation direction is located is parallel to a plane in which the impeller rotates.
In this case, the rotation of the second flushing head 212 and the rotation of the engine blades are intermittent and in a certain sequence.
In the present case, the frame body 1 is provided with a fixing part 11 for fixing and driving the engine blade to rotate, the fixing part 11 extends into the blade bin and can drive the engine blade to rotate, and the specific clamping mode is not limited, in the present case, the fixing part 11 is in a shape of a circular truncated cone, the surface is made of a rough material, through extrusion, the outer end face of the fixing part 11 can be embedded into the middle part of the engine blade (most of the middle part of the engine blade is convenient to assemble and can have a cylindrical cavity space), and in addition, other mechanical structures can be adopted to realize modes of driving the engine blade to rotate, such as a clamping jaw, a bidirectional electric push rod and the like, which are not repeated herein.
The frame 1 is provided with a driving frame 4 capable of reciprocating in the direction of the engine blade, the driving frame 4 is driven by a screw rod arranged in the frame 1, the frame 1 is provided with a push rod 41 capable of reciprocating in one side of the swinging direction of the second flushing head 212, the push rod 41 is inclined towards one end of the second flushing head 212, the outer end face of the second flushing head 212 is positioned on the moving path of the inclined face of the push rod 41, and the second flushing head 212 can be driven to swing when the push rod 41 is abutted against the outer end face of the second flushing head 212.
In this case, a deflector 411 is vertically disposed at the bottom of the push rod 41, the deflector 411 is located on the moving path of the driving frame 4, specifically, a pushing block is disposed on the driving frame 4, the deflector 411 is located on the moving path of the pushing block, a clamping hole is formed on the end face of the pushing block facing the deflector 411, when the push rod 41 is far away from the second cleaning head 212, the flushing face of the second cleaning head 212 is vertically downward, and when the push rod 41 approaches the second cleaning head 212 and contacts the side end face of the second cleaning head 212, the second cleaning head 212 is pushed to one side to drive the second cleaning head 212 to deviate in an angle.
A torsion spring is provided between the pin shaft on the second flushing head 212 and the frame 1, so that a reset function can be realized.
In this case, a roller 111 capable of rotating unidirectionally is disposed on a side of the fixing member 11 away from the engine blade, a first bevel gear 112 is sleeved on the outer side of the roller 111, and the driving frame 4 is intermittently engaged with the second bevel gear 121 to drive the roller to rotate unidirectionally.
The unidirectional rotation of the roller 111 can rotate only clockwise/anticlockwise, specifically, in this case, a C-shaped adapter frame 12 with a concave surface facing the direction of the engine blade is arranged in the frame body 1, a second bevel gear 121 meshed with the first bevel gear 112 is rotatably arranged at the bottom end of the C-shaped adapter frame 12, a driving gear 122 is rotatably arranged on the C-shaped adapter frame 12 and above the second bevel gear 121, a toothed plate 42 meshed with the driving gear 122 is arranged on the driving frame 4, and the toothed plate 42 contacts the driving gear 122 to drive the second bevel gear 121 to rotate.
The end face of the toothed plate 42 is provided with the latch 421, the latch 421 can drive the driving gear 122 to rotate when contacting the driving gear 122, as shown in fig. 8, the number of the latch 421 can be adjusted according to the actual working condition, a plurality of convex holes are formed in the toothed plate 42, and the latch 421 is in a convex structure and is arranged in the convex holes in an inserting mode.
In order to rotate the driving gear 122, only the second bevel gear 121 is rotated in one direction, in this case, an upper end of the second bevel gear 121 is provided with a mating block 123 that can elastically stretch up and down, an upper end of the mating block 123 is an inclined plane, a pin 124 is vertically disposed at a bottom of the driving gear 122, and an upper end inclined plane of the mating block 123 is located on a moving path of the pin 124.
As shown in fig. 9, the cleaning method in the present case may be at least two according to the above-mentioned amplitude and the number of times of driving the impeller to rotate.
If only the above-mentioned mode is adopted, the first cleaning head 211 cleans the front surface of the blade, the second cleaning head 212 cleans the back surface (upper end) of the adjacent blade, when the driving frame 4 moves (toward the impeller), the toothed plate 42 and the driving gear 122 are matched, the impeller rotates a certain angle, the relative distance between the second cleaning head 212 and the blade cleaned by the second cleaning head increases, but at this time, the cleaning angle of the second cleaning head 212 is not changed, while as the driving frame 4 moves continuously, the angle of the second cleaning head 212 is changed (toward the corresponding cleaning blade) by the push rod 41, at this time, the back root position of the blade is flushed, after a period of cleaning, the driving frame 4 is retracted to the initial position, during the retraction, the toothed plate 42 and the driving gear 122 are contacted once, but at this time, the pin 124 contacts the upper end inclined surface of the matching block 123, the impeller is not rotated, after the toothed plate 42 and the driving gear 122 are staggered, the driving frame 4 moves toward the impeller again, the impeller rotates in the direction, and each time the blade is retracted.
If, as shown in fig. 9, two first bevel gears 112 are sleeved on the outer sides of the rollers 111, and two corresponding C-shaped adaptor frames 12 are also provided, but the difference is that the external teeth numbers of the driving gears 122 on the two C-shaped adaptor frames 12 are different, and when the teeth numbers of the driving gears 122 arranged in the direction far away from the impeller are different from those of the driving gears 122 arranged in the direction far away from the impeller, the impeller has two angular offset processes in the whole cleaning process, the first time is just as in the foregoing process, when the toothed plate 42 and the driving gears 122 arranged in the direction far away from the impeller are matched, the angular amplitude of the impeller is larger, at this time, the teeth numbers can be set according to the number of the blades, so that the two blades can be switched after one time, that is, the action objects of the two flushing heads are sequentially changed, and when the toothed plate 42 and the driving gears 122 arranged in the direction near to the impeller are matched, as the teeth numbers of the teeth numbers are less, the rotation amplitude of the impeller is not large, not only the flushing surface of the first flushing head 211 can be increased, but also the second flushing head 212 and the corresponding blade of the blade 212 can be driven to be continuously moved towards the root of the blade 4, and the second flushing head 212 can be continuously flushed.
The cleaning water after washing of the two washing heads can drop into the backflow unit 22 below the impeller, the end surface of the backflow unit 22 is an arc surface and is used for collecting the cleaning water dropped from the engine blades, and the backflow unit 22 is communicated with the second washing head 212 through the filtering unit.
Specifically, the bottom of the frame body 1 is also provided with a filter bin 13, the filter bin 13 is communicated with the reflux unit 22, and a filter screen 131 is arranged between the filter bin 13 and the reflux unit 22; wherein, the driving frame 4 is also provided with a sponge block 43 contacted with the cleaning water in the filtering bin 13, and the liquid collected by the reflux unit 22 is absorbed by the sponge block 43 after being filtered by the filter screen 131.
The frame body 1 further comprises a water storage tank 3, the first flushing head 211 is communicated with the water storage tank 3 through a water supply pipeline, other cleaning agents such as alcohols can be added into the water storage tank 3 to improve the cleaning effect, and in practice, cleaning water can be supplemented into the filter bin 13 at regular time of the water storage tank 3, so that water loss is avoided.
The upper end of the sponge block 43 is provided with a water drawing net 14, the sponge block 43 can be extruded with the side wall of the filtering bin 13 along with the movement of the driving frame 4, water of the sponge block 43 is separated out and oozes out towards the upper end of the water drawing net 14, one end, close to the engine blade, of the upper end of the water drawing net 14 is provided with a water collecting area, the water collecting area is arc-shaped and extends along the width direction of the sponge block 43, and the water collecting area can be communicated with the water storage tank 3 and/or the second flushing head 212 to serve as a cleaning water source of the two flushing heads.
In order to improve the extrusion effect, the sponge block 43 is rectangular, and one side end surface of the filter bin 13 facing the sponge block 43 is an inclined surface inclined from top to bottom, namely, the extrusion force is larger as the sponge block 43 is closer to the impeller, and the water seepage speed is faster.
Specifically, a plurality of water collecting depressions 141 communicated with the water collecting area are arranged on the end surface of the water drawing net 14 at intervals, wherein at least one water collecting depression 141 is provided with a plurality of water passing holes 142 communicated with the inside of the filter bin 13, other water collecting depressions 141 are directly and vertically communicated with the water collecting area, and in the process of extruding the sponge block 43, precipitated water flows into the other water collecting depressions 141 through the water passing holes 142 (no water passing holes 142 are arranged), and then flows into the water collecting area to be collected for suction of the flushing head.
It should be noted that, in order to avoid water flowing back into the backflow unit 22 when the sponge block 43 is extruded, a layer of partition board is disposed inside the filtering bin 13 and under the water collecting area in this case, the partition board is staggered with the bottom end of the sponge block 43, and the speed of the exuded water flowing from the bottom of the sponge is reduced during the extrusion process of the sponge block 43.
In addition, as shown in fig. 12, an elastic plate may be further disposed on the other side of the sponge block 43, so that the whole sponge block 43 is extruded during the moving process, and the collecting speed of the water collecting area is improved.
The above embodiments are only for illustrating the technical solution of the present invention, and are not limiting; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; these modifications or substitutions do not depart from the essence of the corresponding technical solutions from the protection scope of the technical solutions of the embodiments of the present invention.
Claims (10)
1. A cleaning system for an aircraft engine, comprising:
the engine blade fixing device comprises a frame body (1), wherein a fixing piece (11) for fixing and driving an engine blade to rotate is arranged on the frame body (1);
the cleaning frame (2), the cleaning frame (2) comprises a cleaning unit (21) and a backflow unit (22) which can extend to the upper part and the lower part of the engine blade respectively, the cleaning unit (21) comprises a first cleaning head (211) capable of cleaning the front surface of the engine blade and a second cleaning head (212) capable of cleaning the back surface of the adjacent engine blade, the first cleaning head (211) and the second cleaning head (212) can spray cleaning water to the engine blade, the backflow unit (22) is used for collecting the cleaning water dropped from the engine blade, and the backflow unit (22) is communicated with the second cleaning head (212) through a filtering unit;
the flushing surface of the second flushing head (212) is opposite to the back surface of the engine blade, and the second flushing head is elastically hinged on the frame body (1) and can swing towards one side far away from the axial direction of the engine blade.
2. An aircraft engine washing system according to claim 1, wherein the frame (1) further comprises a water reservoir (3), the first washing head (211) and the water reservoir (3) being in communication via a water supply line.
3. An aeroengine cleaning system according to claim 2, wherein the frame (1) is provided with a push rod (41) capable of reciprocating towards one side of the swinging direction of the second cleaning head (212), the push rod (41) is inclined towards one end of the second cleaning head (212) and the outer end surface of the second cleaning head (212) is located on the moving path of the inclined surface of the push rod (41), and the second cleaning head (212) can be driven to swing when the push rod (41) is abutted against the outer end surface of the second cleaning head (212).
4. A cleaning system for an aeroengine according to claim 3, wherein the frame (1) is provided with a driving frame (4) capable of reciprocating in the direction of the engine blade, the bottom of the push rod (41) is vertically provided with a deflector rod (411), and the deflector rod (411) is located on the moving path of the driving frame (4).
5. The aircraft engine cleaning system according to claim 4, wherein a roller (111) capable of rotating unidirectionally is arranged on a side, away from the engine blade, of the fixing member (11), a C-shaped adapter bracket (12) with a concave surface facing the direction of the engine blade is arranged in the bracket body (1), a first conical gear (112) is sleeved on the outer side of the roller (111), a second conical gear (121) meshed with the first conical gear (112) is rotatably arranged at the bottom end of the C-shaped adapter bracket (12), and the driving bracket (4) can be intermittently matched with the second conical gear (121) and drives the second conical gear to rotate unidirectionally.
6. The aircraft engine cleaning system according to claim 5, characterized in that a drive gear (122) is rotatably mounted on the C-shaped adapter bracket (12) above the second bevel gear (121), and that a toothed plate (42) which meshes with the drive gear (122) is provided on the drive bracket (4) and drives the second bevel gear (121) to rotate when the toothed plate (42) contacts the drive gear (122).
7. The aircraft engine cleaning system according to claim 6, wherein an upper end of the second bevel gear (121) is provided with a mating block (123) that can elastically stretch up and down, an upper end of the mating block (123) is inclined, a pin (124) is vertically provided at a bottom of the driving gear (122), and an upper end inclined surface of the mating block (123) is located on a moving path of the pin (124).
8. The cleaning system of an aeroengine according to claim 7, wherein a filter house (13) is further arranged at the bottom of the frame body (1), the filter house (13) is communicated with the backflow unit (22), and a filter screen (131) is arranged between the filter house (13) and the backflow unit (22);
the device is characterized in that a sponge block (43) which is in contact with the cleaning water in the filtering bin (13) is further arranged on the driving frame (4), a water drawing net (14) is arranged at the upper end of the sponge block (43), a water collecting area is arranged at one end, close to the engine blades, of the upper end of the water drawing net (14), and the water collecting area can be communicated with the water storage tank (3) and/or the second flushing head (212).
9. The aircraft engine cleaning system according to claim 8, wherein the sponge block (43) is rectangular, and a side end surface of the filter house (13) facing the sponge block (43) is an inclined surface inclined from top to bottom.
10. The aircraft engine cleaning system according to claim 9, wherein a plurality of water collecting depressions (141) communicated with the water collecting area are arranged on the end face of the water drawing net (14) at intervals, and a plurality of water passing holes (142) communicated with the interior of the filter house (13) are arranged in at least one water collecting depression (141).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311507232.1A CN117225797B (en) | 2023-11-14 | 2023-11-14 | Cleaning system of aeroengine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311507232.1A CN117225797B (en) | 2023-11-14 | 2023-11-14 | Cleaning system of aeroengine |
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| CN117225797A true CN117225797A (en) | 2023-12-15 |
| CN117225797B CN117225797B (en) | 2024-05-28 |
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| CN1705524A (en) * | 2004-02-16 | 2005-12-07 | 燃气涡轮效率股份有限公司 | Method and apparatus for cleaning a turbofan gas turbine engine |
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| US20160010497A1 (en) * | 2014-07-08 | 2016-01-14 | Rolls-Royce Corporation | Cleaning system for a turbofan gas turbine engine |
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| CN111226025A (en) * | 2017-10-16 | 2020-06-02 | 汉莎技术股份公司 | Device for cleaning turbine blades of a jet engine |
| CN115156153A (en) * | 2022-07-14 | 2022-10-11 | 江苏大学 | Wind-electric field cooperative regulation spray cleaning device for aero-engine blade and working method thereof |
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2023
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| CN1705524A (en) * | 2004-02-16 | 2005-12-07 | 燃气涡轮效率股份有限公司 | Method and apparatus for cleaning a turbofan gas turbine engine |
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| CN115156153A (en) * | 2022-07-14 | 2022-10-11 | 江苏大学 | Wind-electric field cooperative regulation spray cleaning device for aero-engine blade and working method thereof |
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|---|---|
| CN117225797B (en) | 2024-05-28 |
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