CN115156153B - A wind-electric field coordinated control spray cleaning device for aeroengine blades and its working method - Google Patents

Abstract

The invention belongs to the technical field of aircraft engine blade cleaning, and particularly relates to a wind-electric field cooperative regulation and control spray cleaning device for an aircraft engine blade and a working method thereof; the device mainly comprises a wind-electric field coupled annular spraying electrostatic device, an annular electrode, a hydrophobic flow passage and a cleaning liquid recovery and circulation system; 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 device of the invention 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.

Description

A wind-electric field coordinated control spray cleaning device for aeroengine blades and how it works

technical field

The invention belongs to the technical field of aeroengine blade cleaning, and in particular relates to a wind-electric field coordinated control spray cleaning device for aeroengine blades and a working method thereof.

Background technique:

After long-term operation of the aero-engine, carbon deposits, metal carbides, paint films, etc. remain on the blades and the inner wall of the engine. Long-term deposition will cause damage to the aero-engine. At the same time, there are potential safety hazards, which need to be cleaned regularly. The current common cleaning method is to use a water gun with a certain water pressure to spray the fan blade disc of the aero-engine, and use the centrifugal force generated by the rotation of the engine to make the cleaning liquid be thrown out and discharged from the tail of the aero-engine. Another common method is to immerse the engine in a cleaning pool to achieve the purpose of descaling and carbon deposition without corroding the aircraft components; however, the above two methods require a large amount of cleaning fluid and are expensive , and the cleaning efficiency of the back of the blade by the water gun spray cleaning method is low.

In view of the above problems, the present invention discloses a wind-electric field cooperative regulation and control spray technology, which enables the charged droplets to attach to the front of the blade under the coupling effect of a specific electrostatic field and wind field, and at the same time move directional to the back of the blade, greatly improving the cleaning efficiency and saving costs .

Contents of the invention

The purpose of the present invention is to overcome the deficiencies in the prior art, to provide a wind-electric field coordinated control spray cleaning device for aeroengine blades, which can effectively solve the problem that a large amount of cleaning liquid is wasted in the cleaning process, and at the same time Part of the waste cleaning liquid can be reused through the cleaning liquid recycling system to meet the current technical requirements for sustainable development; the integrated system layout with high space utilization can make operation more convenient.

In order to achieve the above object, the present invention adopts the following technical solutions:

The present invention first provides a wind-electric field coordinated control spray cleaning device for aeroengine blades. The device includes a fan, a liquid storage tank, an annular electrostatic spray device, an annular electrode, a hydrophobic flow channel, a fixed rod 1, and a fixed rod 2 , blade, super-hydrophobic material coating, cleaning liquid recovery pipe, cleaning liquid delivery pipe, main switch, first circuit switch, second circuit switch, third circuit switch, main circuit, first circuit, second circuit, third circuit Circuits, wind farms, aero engines, filters, transfer pumps, filter solenoid valves and transfer pump solenoid valves;

The fan is located in front of the aero-engine; the aero-engine includes built-in blades; the annular electrostatic spray device is located between the blades and the fan;

The position of the annular electrostatic spray device is recorded as the front end of the blade; the rear end of the blade is provided with an annular electrode; the annular electrode is arranged on the periphery of the aero-engine, corresponding to the annular electrostatic spray device;

The annular electrostatic spray device and the annular electrode are fixed by the first fixed rod and the second fixed rod;

One end of the fan is connected to the second circuit and the first circuit through the third circuit; the second circuit is electrically connected to the annular electrostatic spray device, and the third circuit is provided with a third circuit switch; the second circuit is provided with There is a second circuit switch;

The inner wall of the aero-engine is coated with a superhydrophobic material coating, and the width of the coating is greater than the width of the blade, so that the water droplets centrifuged by the blade fall on the coating surface;

The bottom of the blade is docked with a hydrophobic flow channel, so as to collect the liquid that slides off the surface of the superhydrophobic material coating; the outlet end of the hydrophobic flow channel is connected to the inlet end of the cleaning liquid recovery pipeline through a pipeline; the outlet end of the cleaning liquid recovery pipeline It is connected to the inlet end of the filter through a pipeline, and the outlet end of the filter is connected to the inlet end of the liquid storage tank through a pipeline; a filter solenoid valve is installed on the filter;

The outlet end of the liquid storage tank is connected to the inlet end of the delivery pump through a pipeline, and the outlet end of the delivery pump is connected to the inlet end of the cleaning liquid delivery pipeline through a pipeline; a delivery pump solenoid valve is installed on the delivery pump;

The filter solenoid valve and the delivery pump solenoid valve are electrically connected to the first circuit, and a first circuit switch is provided on the first circuit;

The annular electrostatic spray device is composed of a high-voltage electrostatic generator, a nozzle, a nozzle switch, an induction electrode, a wire, a connecting pipe, a built-in wire in the connecting pipe, a ring, a built-in circuit pipe in the ring, a built-in delivery pipe in the ring, and a rotating shaft;

The cleaning liquid delivery pipeline is connected to the circular ring built-in delivery pipeline inside the ring, and the surface of the circular ring built-in delivery pipeline is provided with a plurality of connecting pipelines, the connecting pipelines communicate with the nozzle, and a rotating shaft is provided at the connecting pipeline, so that the nozzle can Perform multi-angle rotation;

The nozzle switch is also provided on the surface of the nozzle to control the opening and closing of the nozzle; the nozzle switch is electrically connected to the built-in circuit pipeline of the ring and the high-voltage electrostatic generator through the built-in wire of the connecting pipe; the high-voltage electrostatic generator is connected to the second electrical circuit connection;

The front end of the nozzle is also provided with a sensing electrode, the sensing electrode is in the shape of a ring; the sensing electrode is electrically connected to the switch of the nozzle through a wire; that is, one end of the wire is electrically connected to the switch of the nozzle, and the other end is respectively connected to the sensor The electrodes are electrically connected with the conductive wires.

The front end of the spray head is also provided with a conductive wire, the other end of which is connected with the wire, and the conductive wire is used to contact and electrify the ejected charged cleaning liquid droplet to form a charged droplet.

Preferably, the connecting pipes are evenly spaced on the surface of the circular built-in conveying pipe and distributed in a centripetal array. Preferably, the fan is located directly in front of the aero-engine, and the two are coaxially arranged; the vertical distance between the fan and the blades of the aero-engine is 50-60 cm; the vertical distance between the annular electrostatic spray device and the blades is 10-15 cm The vertical distance between the ring electrode and the blade is 20-30cm; the vertical distance between the induction electrode and the nozzle of the nozzle is 3-5cm; the inner diameter of the induction electrode is consistent with the diameter of the nozzle.

Preferably, the width of the superhydrophobic material coating is 5-7cm greater than the width of the blade; wherein the length of the blade is the radius length of the overall fan blade, that is, the length of a single blade, and the width of the blade refers to the width of a single blade.

Preferably, the superhydrophobic material coating forms a "V"-shaped hydrophobic pattern on the inner wall of the aero-engine, extending from the top of the inner wall to the bottom hydrophobic flow channel, and the tips of the "V" all point to the hydrophobic flow channel at the bottom of the inner wall of the aero-engine.

Preferably, the hydrophobic flow channel is located at the bottom of the inner wall of the aero-engine; the hydrophobic flow channel is designed as "flat-steep-flat" according to the external structure of the aero-engine, and the included angle between the "steep" part and the horizontal plane is 10-25°.

The present invention also provides a working method for the wind-electric field cooperative regulation and control spray cleaning device for the blades of the aeroengine, and the specific steps are as follows:

S1. Turn on the main switch to energize the main circuit; control the first circuit switch and the second circuit switch to close;

Turn on the third circuit switch to control the fan to start running to form a stable wind field; turn on the first circuit switch, at this time the filter solenoid valve and the delivery pump solenoid valve are in the energized state;

S2. Open the solenoid valve of the delivery pump, the cleaning liquid can enter the delivery pump from the liquid storage tank, enter the delivery pipeline of the ring through the delivery pipeline of the cleaning solution, and store it in the delivery pipeline of the delivery pump, close the delivery pump The electromagnetic valve;

S3. Turn on the second circuit switch, start the high-voltage electrostatic generator, control the opening of the nozzle through the nozzle switch, and the cleaning liquid can be sprayed from the built-in delivery pipeline of the ring through the connecting pipeline to the nozzle, and the sprayed liquid passes through the induction electrode;

At the same time, the sprayed liquid contacts the conductive wire to generate electricity to form a charged droplet; at this time, the induction electrode group distributed in a circular array can generate an electric field with the ring electrode, so that the charged droplet can move directional in the electric field;

At this time, the wire is negatively charged, the sensing electrode is positively charged, the ring electrode needs to be installed with a ground wire, and the aeroengine shell needs to be installed with a ground wire;

S4. At the same time, due to the effect of the wind field, the charged cleaning liquid droplets sprayed by the nozzle first adhere to the front of the blade; the angle of the nozzle can be adjusted by rotating the shaft, so that the spray direction is towards the gap between the blades. Under the effect of the wind field, The liquid will enter the interior of the aero-engine through the gap; due to the effect of the electric field, the charged cleaning liquid droplets entering the interior of the aero-engine can move to the back of the blade in a direction; the cleaning liquid droplets will adhere to the front and back of the blade;

S5. After cleaning liquid is attached to the front and back of the blade, turn off the third circuit switch and the second circuit switch. After standing for a period of time, start the aeroengine, open the filter solenoid valve, the blade starts to rotate, and the centrifugal force generated by its rotation Let the cleaning liquid on its surface be thrown to the super-hydrophobic material coating, and the droplet will slide down to the hydrophobic flow channel through the "V"-shaped hydrophobic lines, flow through the hydrophobic flow channel to the cleaning liquid recovery pipe, then enter the filter, and filter through the filter The final liquid is delivered to the liquid storage tank;

S6. Finally, close the filter solenoid valve, close the first circuit switch, close the main switch, and the operation ends.

Preferably, the period of standing in step S5 is 10-20min.

Beneficial effects of the present invention:

1. The device of the present invention occupies less space. Compared with the cumbersome replacement of the cleaning pool for soaking, the integrated device will make it more convenient for the operator to operate the cleaning system.

2. Compared with the cleaning method of the traditional water gun, the device of the present invention is more accurate. The device adopts a wind-electric field coordinated control spray system, and the generated charged droplets have stronger adhesion to the blades and can adhere to the blades for a long time. First, chemically dissolve carbon deposits, metal carbides, etc.; second, the charged droplets can move directionally in the electric field generated by the induction electrode and the ring electrode, so that the blade can be attached to the front and back of the blade by the charged droplets.

3. The device of the present invention has the characteristics of high utilization rate. First, the cleaning liquid is sprayed out in the form of spray, so that the amount of cleaning liquid required is greatly reduced and the economic cost is reduced; the wind-electric field coupling system is used to regulate and control the absolute Most of the charged droplets are accurately attached to the blades. Compared with water gun cleaning, only a few charged droplets will be dispersed in the atmosphere; secondly, the cleaning waste liquid is recycled by using the cleaning liquid recycling system, and the part can be reused by filtering. Secondary utilization of the material; when recycling, the super-hydrophobic material coating on the inner wall of the aero-engine blade and the "V"-shaped hydrophobic texture make the recovery of cleaning waste more efficient.

Description of drawings

Fig. 1 is an overall schematic diagram of a wind-electric field coordinated regulation and control spray cleaning device for aeroengine blades;

Figure 2 is a cut-away top view of the design of the super-hydrophobic composite flow channel;

Fig. 3 is the front view of the annular electrostatic spray device;

Figure 4 is an enlarged view of the nozzle of the annular electrostatic spray device;

Reference signs: 1-high-voltage electrostatic generator, 2-fan, 3-liquid storage tank, 4-annular electrostatic spray device, 5-annular electrode, 6-hydrophobic flow channel, 7-1-fixing rod one, 7-2 -fixing rod two, 8-leaf, 9-superhydrophobic material coating, 10-cleaning liquid recovery pipe, 11-cleaning liquid delivery pipe, 12-main switch, 13-first circuit switch, 14-second circuit switch, 15-third circuit switch, 16-total circuit, 17-first circuit, 18-second circuit, 19-third circuit, 20-connecting pipe, 21-nozzle, 22-rotation shaft, 23-wind field, 24 -Aeroengine, 25-filter, 26-delivery pump, 27-induction electrode, 28-ring, 29-wire, 30-filter solenoid valve, 31-delivery pump solenoid valve, 32-circular built-in circuit pipeline, 33-circular built-in conveying pipeline, 34-nozzle switch, 35-connecting pipeline built-in wire.

Specific implementation method

Below in conjunction with specific accompanying drawing and embodiment the present invention will be further described:

Example 1:

As shown in Figure 1-4, the device includes fan 2, liquid storage tank 3, annular electrostatic spray device 4, annular electrode 5, hydrophobic flow channel 6, fixed rod one 7-1, fixed rod two 7-2, blades 8. Super-hydrophobic material coating 9, cleaning liquid recovery pipeline 10, cleaning liquid delivery pipeline 11, main switch 12, first circuit switch 13, second circuit switch 14, third circuit switch 15, main circuit 16, first circuit 17. The second circuit 18, the third circuit 19, the wind field 23, the aircraft engine 24, the filter 25, the transfer pump 26, the filter solenoid valve 30 and the transfer pump solenoid valve 31;

Described blower fan 2 is positioned at the front of aero-engine 24, and both are coaxially arranged; Described aero-engine 24 comprises built-in blade 8, and the vertical distance of fan 2 and the blade 8 of aero-engine 24 is 50cm; Described annular electrostatic spraying device 4 Located between the blade 8 and the blower fan 2, the vertical distance between the annular electrostatic spray device 4 and the blade 8 of the aero-engine 24 is 12cm;

The residing position of described annular electrostatic spray device 4 is marked as the front end of blade 8; Then, ring electrode 5 is provided at the rear end of blade 8, and the vertical distance between ring electrode 5 and blade 8 is 25cm; Described ring electrode 5 is located at The periphery of the aero-engine 24 corresponds to the annular electrostatic spray device 4;

The inner diameter of the ring electrode 5 needs to be 4 cm larger than the outer diameter of the compressor casing of the aero-engine 24 .

The annular electrostatic spray device 4 and the annular electrode 5 are fixed by a fixed rod one 7-1 and a fixed rod two 7-2, and the number of fixed rods can be increased;

One end of the fan 2 is connected to the second circuit 18 and the first circuit 17 through the third circuit 19; the second circuit 18 is electrically connected to the annular electrostatic spray device 4, and the third circuit 19 is provided with a third circuit switch 15; the second circuit 18 is provided with a second circuit switch 14;

The inner wall of the aero-engine 24 is coated with a super-hydrophobic material coating 9, and the coating width is greater than the width of the blade 8, so that the water drops that the blade 8 centrifuges fall on the coating surface; the width of the super-hydrophobic material coating 9 is 5 cm greater than the width of the blade 8 ; wherein the length of the blade 8 is the radius length of the overall fan blade, that is, the length of a single blade 8, and the width of the blade 8 is the width of a single blade 8.

The bottom of the blade 8 is docked with a hydrophobic flow channel 6, so as to collect the liquid that slides off the surface of the superhydrophobic material coating 9; wherein the hydrophobic flow channel 6 is located at the bottom of the inner wall of the aero-engine 24; "flat-steep-flat" design, the angle between the "steep" part and the horizontal plane is 15°, and the different structures of different aero-engines will cause the angle between the "steep" part and the horizontal plane to be different; the outlet end of the hydrophobic flow channel 6 It is connected to the inlet end of the cleaning liquid recovery pipeline 10; the outlet end of the cleaning liquid recovery pipeline 10 is connected to the inlet end of the filter 25, and the outlet end of the filter 25 is connected to the inlet end of the liquid storage tank 3; A filter solenoid valve 30 is installed;

The super-hydrophobic material coating 9 is formed with a "V"-shaped hydrophobic pattern on the inner wall of the aero-engine 24, extending from the top of the inner wall to the bottom hydrophobic flow channel 6, and the "V"-shaped tip points to the hydrophobic flow channel at the bottom of the inner wall of the aero-engine 24 6; The "V"-shaped hydrophobic lines can better enrich the liquid and make it flow into the hydrophobic flow channel 6;

The outlet of the liquid storage tank 3 is connected to the inlet of the delivery pump 26, and the outlet of the delivery pump 26 is connected to the inlet of the cleaning liquid delivery pipeline 11; the delivery pump 26 is equipped with a delivery pump electromagnetic valve 31;

The filter solenoid valve 30 and the delivery pump solenoid valve 31 are electrically connected to the first circuit 17, and the first circuit 17 is provided with a first circuit switch 13,

The outlet end of the cleaning liquid delivery pipeline 11 is connected to the annular electrostatic spraying device 4 pipelines;

The annular electrostatic spray device 4 is composed of a high-voltage electrostatic generator 1, a nozzle 21, a nozzle switch 34, an induction electrode 27, a wire 29, a connecting pipe 20, a built-in wire 35 in the connecting pipe, a ring 28, a built-in circuit pipe 32 in the ring, and a circular ring. The ring is composed of a built-in delivery pipeline 33 and a rotating shaft 22;

The cleaning liquid delivery pipeline 11 is connected to the circular ring built-in delivery pipeline 33 inside the ring 28, and the surface of the circular ring built-in delivery pipeline 33 is provided with 8 evenly distributed connecting pipelines 20, and the connecting pipelines 20 are distributed in an array in the centripetal direction . 8 are only for example, and more than 16 are required under normal circumstances; the connecting pipe 20 is communicated with the nozzle 21, and a rotating shaft 22 is provided at the connecting pipe 20, so that the nozzle 21 can be rotated at multiple angles;

The surface of the nozzle 21 is also provided with a nozzle switch 34 to control the opening and closing of the nozzle 21; the nozzle switch 34 is electrically connected to the ring built-in circuit pipeline 32 and the high-voltage electrostatic generator 1 through the built-in wire 35 of the connecting pipeline; The high-voltage electrostatic generator 1 is electrically connected to the second circuit 18;

The front end of described shower head 21 is also provided with induction electrode 27, and the vertical distance of induction electrode 27 and shower head 21 spouts is 3cm, and described induction electrode 27 is ring shape, and its internal diameter is consistent with shower head 21 diameters; Described induction electrode 27 passes through The wire 29 is electrically connected to the nozzle switch 34; that is, one end of the wire 29 is electrically connected to the nozzle switch 34, and the other end is electrically connected to the sensing electrode 27 and the conductive wire respectively.

Because the nozzle 21 is connected to the connecting pipe 20, the nozzle 21 is also uniformly distributed in a circular array; wherein, the nozzle adopts a capillary nozzle, the inner diameter of the capillary is 0.3 mm, the outer diameter is 0.5 mm, and the diameter of the nozzle is 10.0 mm;

The length distance of the ejected liquid of the nozzle 21 needs to be greater than or equal to the length of the blade 8, and the maximum width of the ejection needs to be greater than the sum of the maximum width of each blade 8 and the gap between the blades, that is, to ensure that the cleaning liquid ejected by the nozzle 21 Realize the effect of spraying and cleaning the entire blade disc of the fan;

Due to the different specifications of the 24 blades 8 of the aero-engine, the length thereof is between 20 mm and 800 mm. The specific regulation is well known by professionals, and will not be repeated here;

The front end of the spray head 21 is also provided with a conductive wire, the other end of which communicates with the conductive wire 29, and the conductive wire is used for contacting with the ejected charged cleaning liquid droplets for electrification.

A working method for a wind-electric field coordinated regulation and control of a spray cleaning device, the specific steps are as follows:

S1, open main switch 12, total circuit 16 is energized; Now first circuit switch 13, second circuit switch 14; Open the 3rd circuit switch 15, control blower fan 2 starts running, forms stable wind field 23; Open the first Circuit switch 13, now the filter solenoid valve 30 and the delivery pump solenoid valve 31 are in the energized state;

Fan 2 can specifically adopt the existing commonly used models, and the power of the fan can be changed according to the changes in different environments during off-site operations, so as to ensure that the sprayed charged cleaning fluid droplets will not escape into the atmosphere in large quantities through the wind field 23;

S2. Open the solenoid valve 31 of the delivery pump, the cleaning liquid can enter the delivery pump 26 from the liquid storage tank 3, enter the delivery pipeline 33 of the ring 28 through the delivery pipeline 11 of the cleaning solution, and store it in the built-in ring of the ring 28 In the delivery pipeline 33, close the delivery pump electromagnetic valve 31;

S3, open the second circuit switch 14, the high-voltage electrostatic generator 1 starts, and the nozzle 21 is controlled by the nozzle switch 34 to open, and the cleaning liquid can be delivered from the ring built-in delivery pipeline 33 to the nozzle 21 through the connecting pipeline 20. The liquid passes through the sensing electrode 27; at the same time, the sprayed liquid contacts the conductive wire to electrify the liquid, and at this time, the sensing electrode 27 group distributed in a circular array can generate an electric field with the ring electrode 5, and the charged droplet can Make directional movement in the electric field;

The high-voltage electrostatic generator 1 can generate a voltage of 0-20kV, where the high-voltage electrostatic generator 1 generates a voltage of 15kV to the induction electrode 27 and the wire 29 .

At this time, the wire 29 is negatively charged, the sensing electrode 27 is positively charged, the ring electrode 5 needs to be installed with a ground wire, and the aero-engine 24 casing needs to be equipped with a ground wire;

Since the induction electrode 21 and the wire 29 are electrically connected to the high-voltage electrostatic generator 1, a high voltage will be generated during the working state, so the nozzle 21 needs to be covered with an insulating casing to avoid damage to the nozzle 21 and other components by the high voltage;

The insulating casing used by the shower head 21 can be made of Teflon, or of course a ceramic casing, and the ring electrode 5 can be a copper electrode;

S4, because of the effect of the wind field 23, the sprayed charged cleaning liquid droplets first adhere to the front of the blade 8; the angle of the nozzle 21 can be adjusted by the rotating shaft 22, so that the spray direction is towards the gap between the blades 8, and in the wind field 23 Under the action of , the liquid will enter the interior of the aero-engine 24 through the gap; due to the effect of the electric field, the charged cleaning liquid droplets entering the interior of the aero-engine 24 can move to the back of the blade 8 in a direction, and after 15 minutes, the cleaning liquid droplets will adhere to the blade 8 front and back;

S5. After the cleaning liquid is attached to the front and back of the blade 8, turn off the third circuit switch 15 and the second circuit switch 14, and after standing for 20 minutes, adhere to the back of the overall blade disc of the fan to deal with carbon deposits, metal carbides and other substances Carry out chemical dissolution; start the aero-engine 24, open the filter solenoid valve 30, and the blade 8 starts to rotate, and the centrifugal force generated by its rotation allows the cleaning waste liquid on its surface to be thrown to the super-hydrophobic material coating 9, through the "V"-shaped hydrophobic The texture makes the droplets slide down to the hydrophobic flow channel 6, flow through the hydrophobic flow channel 6 to the cleaning liquid recovery pipeline 10, and then enter the filter 25, and the liquid filtered by the filter 25 is transported to the liquid storage tank 3;

Such as 15min, 20min, this length of time can be changed according to the on-site conditions, and an example time length is given here, because the environment on the spot and the specifications of the aero-engine 24 are different, so the charged cleaning fluid droplets move to the required time on the back of the blade 8. time varies;

When the cleaning liquid droplets are attached, because there is very little cleaning liquid that does not react with the stain, the mixed liquid state of the cleaning liquid and the cleaning waste liquid is collectively referred to as the cleaning waste liquid;

After the cleaning waste liquid enters the filter 25 from the hydrophobic channel 6, the filter 25 will filter and recycle the cleaning waste liquid, filter the cleaning waste liquid that cannot be reused, and transport the reusable cleaning liquid to the storage tank. In the liquid tank 3;

The cleaning solution in the liquid storage tank 3 can flow into the delivery pump 26, and the delivery pump 26 will deliver the cleaning solution to the annular built-in delivery pipeline 33 of the annular electrostatic spray device 4 again;

Among them, the filter element in the filter 25 contains a filter screen that can filter out insoluble precipitates and metal carbides, deposits, and paint films produced by chemical reactions, and contains filter materials that can decompose and filter oily substances, toxic and soluble chemicals, etc. It is an existing material, which is purchased from a clean filter element on the market. The specific components are well known by professionals, and will not be repeated here (of course, the cleaning material can also be independently developed to replace it);

Among them, the non-recyclable cleaning liquid components include but are not limited to: those that will react with cleaning waste liquid to produce precipitation, or produce non-decomposable, toxic substances, etc.;

The filtered waste liquid needs to remove the filter element of the filter 25 for processing or use a catheter to export it under negative pressure;

S6. Finally, close the filter solenoid valve 30, close the first circuit switch 13, close the main switch 12, and the operation ends.

Explanation: the above embodiments are only used to illustrate the present invention and are not intended to limit the technical solutions described in the present invention; therefore, although the specification has described the present invention in detail with reference to the above-mentioned embodiments, those of ordinary skill in the art should It is understood that the present invention can still be modified or equivalently replaced; and all technical solutions and improvements that do not depart from the spirit and scope of the present invention should be covered within the scope of the claims of the present invention.

Claims (10)

1. a wind-electric field cooperative regulation spray cleaning device for aeroengine blade, is characterized in that, described device comprises blower fan (2), liquid storage tank (3), annular electrostatic spraying device (4), annular electrode ( 5), hydrophobic channel (6), fixed rod one (7-1), fixed rod two (7-2), blade (8), superhydrophobic material coating (9), cleaning liquid recovery pipe (10), Cleaning liquid delivery pipe (11), main switch (12), first circuit switch (13), second circuit switch (14), third circuit switch (15), main circuit (16), first circuit (17) , second circuit (18), third circuit (19), wind field (23), aeroengine (24), filter (25), delivery pump (26), filter solenoid valve (30) and delivery pump electromagnetic valve (31); The fan (2) is positioned in front of the aero-engine (24); the aero-engine (24) includes a built-in blade (8); the annular electrostatic spray device (4) is positioned between the blade (8) and the fan (2) ; The residing position of the annular electrostatic spray device (4) is marked as the front end of the blade (8); then the rear end of the blade (8) is provided with a ring electrode (5); The periphery of (24) corresponds to the annular electrostatic spraying device (4); The annular electrostatic spray device (4) and the annular electrode (5) are fixed by a fixed rod one (7-1) and a fixed rod two (7-2); One end of the blower fan (2) is connected to the second circuit (18) and the first circuit (17) through the third circuit (19); the second circuit (18) is electrically connected to the annular electrostatic spraying device (4), The third circuit (19) is provided with a third circuit switch (15); the second circuit (18) is provided with a second circuit switch (14); The inner wall of the aero-engine (24) is coated with a superhydrophobic material coating (9), and the width of the coating is greater than the width of the blade (8), so that the water droplets centrifuged by the blade (8) fall on the coating surface; The bottom of the blade (8) is docked with a hydrophobic flow channel (6), so as to collect the liquid that slides down from the surface of the superhydrophobic material coating (9); ) inlet end is connected through a pipeline; the outlet end of the cleaning liquid recovery pipeline (10) is connected with the inlet end of the filter (25) through a pipeline, and the outlet end of the filter (25) is connected with the inlet end of the liquid storage tank (3) through Pipeline connection; filter solenoid valve (30) is installed on the filter (25); The outlet of the liquid storage tank (3) is connected to the inlet of the delivery pump (26) through a pipeline, and the outlet of the delivery pump (26) is connected to the inlet of the cleaning liquid delivery pipeline (11) through a pipeline; the delivery pump ( 26) A conveying pump electromagnetic valve (31) is installed on it; The filter solenoid valve (30) and delivery pump solenoid valve (31) are electrically connected to the first circuit (17), and a first circuit switch (13) is provided on the first circuit (17); The annular electrostatic spray device (4) consists of a high-voltage electrostatic generator (1), a nozzle (21), a nozzle switch (34), an induction electrode (27), a wire (29), a connecting pipe (20), and a built-in wire in the connecting pipe. (35), ring (28), ring built-in circuit pipeline (32), ring built-in delivery pipeline (33) and rotating shaft (22); The cleaning liquid delivery pipeline (11) is connected with the ring built-in delivery pipeline (33) inside the ring (28), and the surface of the ring built-in delivery pipeline (33) is provided with a plurality of connecting pipelines (20), and the connecting pipelines (20 ) is communicated with the nozzle (21), and the connecting pipe (20) is provided with a rotating shaft (22), so that the nozzle (21) can be rotated at multiple angles; The surface of the nozzle (21) is also provided with a nozzle switch (34), which is used to control the opening and closing of the nozzle (21); 32) being electrically connected to the high-voltage electrostatic generator (1); the high-voltage electrostatic generator (1) is electrically connected to the second circuit (18); The front end of the nozzle (21) is also provided with an induction electrode (27), and the induction electrode (27) is in the shape of a ring; the induction electrode (27) is electrically connected to the nozzle switch (34) through a wire (29) ; That is, one end of the wire (29) is electrically connected to the nozzle switch (34), and the other end is electrically connected to the sensing electrode (27) and the conductive wire; The front end of the spray head (21) is also provided with a conductive wire, the other end of which communicates with the wire (29), and the conductive wire is used to contact and electrify the ejected charged cleaning liquid droplets to form charged droplets. 2. A kind of wind-electric field coordinated control spray cleaning device for aeroengine blades according to claim 1, characterized in that, the connecting pipes (20) are evenly spaced on the surface of the ring built-in conveying pipe (33) , and it is distributed in a centripetal array. 3. A kind of wind-electric field cooperative regulation and control spray cleaning device for aeroengine blades according to claim 1, characterized in that, the fan (2) is located directly in front of the aeroengine (24), and the two are coaxial Setting; the vertical distance between the fan (2) and the blade (8) of the aero-engine (24) is 50-60cm. 4. A kind of wind-electric field cooperative regulation and control spray cleaning device for aeroengine blades according to claim 1, characterized in that, the vertical distance between the annular electrostatic spray device (4) and the blade (8) is 10- 15cm; the vertical distance between the ring electrode (5) and the blade (8) is 20-30cm. 5. A kind of wind-electric field coordinated control spray cleaning device for aeroengine blades according to claim 1, characterized in that, the vertical distance between the induction electrode (27) and the nozzle (21) nozzle is 3-5cm ; The inner diameter of the induction electrode (27) is consistent with the diameter of the nozzle (21). 6. A kind of wind-electric field cooperative regulation and control spray cleaning device for aeroengine blades according to claim 1, characterized in that, the width of the superhydrophobic material coating (9) is greater than the width of the blade (8) by 5-7cm Wherein the length of the blade (8) is the radius length of the overall fan blade, i.e. the length of a single blade (8), and the width of the blade (8) refers to the width of a single blade (8). 7. A kind of wind-electric field cooperative control spray cleaning device for aeroengine blades according to claim 1, characterized in that, the superhydrophobic material coating (9) is formed with " V"-shaped hydrophobic lines extend from the top of the inner wall to the bottom hydrophobic flow channel (6); the tips of the "V" shape all point to the hydrophobic flow channel (6) at the bottom of the inner wall of the aero-engine (24). 8. A kind of wind-electric field coordinated control spray cleaning device for aeroengine blades according to claim 1, characterized in that, the hydrophobic flow channel (6) is positioned at the bottom of the inner wall of the aeroengine (24); the hydrophobic flow channel (6) According to the external structure of the aero-engine (24), it is designed as "flat-steep-flat", wherein the angle between the "steep" part and the horizontal plane is 10-25°. 9. A working method for a wind-electric field cooperative regulation and control spray cleaning device for aeroengine blades, characterized in that, the specific steps are as follows: S1, open main switch (12), make total circuit (16) energize; Control the first circuit switch (13), the second circuit switch (14) to close; Open the third circuit switch (15), the control blower fan (2) starts to run, and forms a stable wind field (23); open the first circuit switch (13), and now the filter electromagnetic valve (30) and the delivery pump electromagnetic valve ( 31) In the power-on state; S2, open the delivery pump electromagnetic valve (31), the cleaning liquid can enter the delivery pump (26) from the liquid storage tank (3), and enter the ring built-in delivery pipeline (33) of the ring (28) through the cleaning solution delivery pipeline (11) ), and stored in the circular ring built-in delivery pipeline (33) of the circular ring (28), close the delivery pump electromagnetic valve (31); S3, open the second circuit switch (14), the high-voltage electrostatic generator (1) starts, and the nozzle (21) is controlled by the nozzle switch (34) to open, and the cleaning liquid can pass through the connecting pipeline (20) from the ring built-in delivery pipeline (33) ) is transported to the nozzle (21) for ejection, and the ejected liquid passes through the induction electrode (27); Simultaneously, the sprayed liquid contacts with the conductive wire to electrify, so that the liquid is charged. At this time, the group of induction electrodes (27) distributed in a circular array can generate an electric field with the ring electrode (5), so that the charged droplets can be charged in the electric field. make directional movement; Now, the lead (29) is negatively charged, the induction electrode (27) is positively charged, the ring electrode (5) needs to be installed with a ground wire, and the aero-engine (24) shell needs to be equipped with a ground wire; S4, because of the effect of the wind field (23) simultaneously, the charged cleaning fluid droplet sprayed by the nozzle (21) first adheres to the blade (8) front; the angle of the nozzle (21) can be adjusted by the rotating shaft (22), so that the nozzle The outlet direction is towards the gap between the blades (8), under the action of the wind field (23), the liquid will pass through the gap and enter the interior of the aero-engine (24); due to the effect of the electric field, the charged cleaning fluid entering the interior of the aero-engine (24) The droplets can move to the back of the blade (8) in a directional manner; the cleaning liquid droplets will adhere to the front and back of the blade (8); S5, after the front and back of the blade (8) are all attached with cleaning fluid, close the third circuit switch (15) and the second circuit switch (14), after standing for a period of time, start the aero-engine (24), open the filter The solenoid valve (30), the blade (8) starts to rotate, and the centrifugal force generated by its rotation makes the cleaning liquid on its surface fling to the super-hydrophobic material coating (9), and the droplet slides down to the hydrophobic flow through the "V"-shaped hydrophobic lines. Road (6), through the hydrophobic flow channel (6), flows to the cleaning liquid recovery pipeline (10), and then enters the filter (25), and the liquid filtered by the filter (25) is transported to the liquid storage tank (3); S6. Finally, close the filter solenoid valve (30), close the first circuit switch (13), close the main switch (12), and the operation ends. 10. A working method for a wind-electric field coordinated control spray cleaning device for aeroengine blades according to claim 9, characterized in that the period of standing in step S5 is 10-20 minutes.