Turbine shell cleaning apparatus with gapless cleaning

Abstract

The application provides a turbine shell cleaning device with gap and dead angle free cleaning, which comprises a cleaning box, a water inlet pipeline and a water outlet pipeline, an ultrasonic cleaner, a heating rod and a drying device. The cleaning box is internally provided with a liquid concentration sensor and a temperature sensor for monitoring the concentration of cleaning liquid in the box in real time. The first electromagnetic valve, the second electromagnetic valve, the ultrasonic cleaner, the temperature sensor and the heating rod are in remote communication connection with a single-chip microcomputer. The single-chip microcomputer controls the ultrasonic cleaner to ensure the optimal real-time solution concentration in the cleaning box in real time, and realizes the cleaning of each point on the surface of the turbine shell with optimal sound pressure. The application realizes the cavitation-assisted chemical cleaning of the turbine shell with the optimal cleaning solution concentration in the preset temperature range, avoids the penetration damage of the turbine shell surface caused by the large sound pressure generated by the ultrasonic wave, and avoids the corrosion damage of the turbine shell surface caused by the chemical cleaning of the turbine shell surface with the cleaning solution with high concentration.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of turbine shell cleaning, and particularly relates to a turbine shell cleaning device with gapless dead angle cleaning. BACKGROUND

[0002] The turbine shell cleaning device is a device for cleaning a turbine shell, which is a part of a turbine machine, usually made of metal, used for accommodating turbine blades and other related components. Due to the use environment, dust, oil stains, corrosion, etc. may accumulate on the surface of the turbine shell, affecting its normal work. Therefore, the turbine shell needs to be cleaned regularly. The turbine shell cleaning device has the characteristics of good cleaning effect, simple operation, and fast cleaning speed.

[0003] The existing turbine shell cleaning device needs manual addition of cleaning liquid by the worker during use, so as to clean the oil stains, carbon deposits or dirt and other impurities on the turbine shell. However, manual addition of cleaning liquid may cause the cleaning liquid to be too high or too low in concentration. Too high concentration may cause corrosion of the turbine shell surface, and too low concentration may not achieve effective cleaning effect. Therefore, it is difficult to effectively add an appropriate amount of cleaning liquid to clean the turbine shell. Therefore, how to design a turbine shell cleaning device with gapless dead angle cleaning, which can automatically add an appropriate amount of cleaning liquid and ensure the optimal concentration of the cleaning liquid in real time, and generate optimal sound pressure by ultrasonic waves, has become a problem to be solved. SUMMARY

[0004] The present application provides a turbine shell cleaning device with gapless dead angle cleaning to solve the above problems. The present application uses a single-chip microcomputer to control the ultrasonic cleaner to perform cavitation-assisted chemical cleaning of the turbine shell under the condition of ensuring the optimal cleaning solution concentration in the preset temperature range, thereby avoiding the phenomenon of penetration damage caused by the large sound pressure generated by the ultrasonic wave acting on the turbine shell surface and the corrosion damage caused by the chemical cleaning of the turbine shell surface with a large concentration of cleaning solution.

[0005] The present application provides the following technical solutions: the turbine shell cleaning device of gap dead angle cleaning, including cleaning tank, water inlet pipeline and drainage pipeline, the water inlet pipeline is connected and is established in one side of cleaning tank, the drainage pipeline is connected and is established in the outer wall of cleaning tank, the water inlet pipeline is linked with the piston push plate in the inside of the liquid storage tank through the transmission assembly, the liquid storage tank side is connected and is established with the liquid discharge pipeline, the other end of liquid discharge pipeline is connected with the cleaning tank, the outer wall of liquid storage tank is connected and is established with the liquid inlet pipeline for conveying cleaning fluid to the cleaning tank, the cleaning tank is provided with drainage pipeline on the opposite side of water inlet pipeline, the sidewall of cleaning tank and liquid storage tank opposite side is provided with ultrasonic cleaner for emitting ultrasonic wave, the inside of cleaning tank is provided with liquid concentration sensor for monitoring the concentration of cleaning fluid in tank and temperature sensor for monitoring the temperature of cleaning fluid in tank in real time, the lower part of ultrasonic cleaner is provided with heating rod on the sidewall of cleaning tank, the liquid discharge pipeline both sides are also provided with drying device, the first electromagnetic valve for opening and closing water inlet pipeline, the second electromagnetic valve for opening and closing drainage pipeline, the liquid concentration sensor, the temperature sensor, the ultrasonic cleaner and the heating rod are all connected with single-chip microcomputer remote communication, the single-chip microcomputer controls the first electromagnetic valve to open at the same time, controls the second electromagnetic valve to close, controls the ultrasonic cleaner to ensure the optimal real-time solution concentration in the cleaning tank, realizes the cleaning of each point on the surface of the turbine shell to be cleaned under the optimal sound pressure.

[0006] Further, the ultrasonic generator includes an ultrasonic generator and an ultrasonic transducer, the ultrasonic transducer is used for receiving the ultrasonic wave of sinusoidal waveform emitted by the ultrasonic generator, and converting the electric energy emitted by the ultrasonic generator into acoustic energy, so as to clean the turbine shell in the cleaning tank without dead angle; the single-chip microcomputer controls the ultrasonic generator to ensure the optimal real-time solution concentration in the cleaning tank at the same time, realizes the cleaning of each point on the surface of the turbine shell to be cleaned under the optimal sound pressure, including the following steps:

[0007] S1, real-time monitoring of the ultrasonic generator in the ultrasonic generator and the frequency of the secondary ultrasonic wave emitted by the ultrasonic transducer after transduction , constructing the harmonic sum function of the primary ultrasonic wave and the secondary ultrasonic wave :

[0008]

[0009] Among them, and are the amplitude of the normal velocity component of the i-th point on the surface of the turbine shell to be cleaned caused by the frequency and , respectively ​Xi, Yi, Zi are the coordinate values of the i-th point on the surface of the turbine shell in the body coordinate system, and respectively, Xi, Yi, Zi are the coordinate values of the i-th point in the body coordinate system, i = 1, 2,..., N; j is an imaginary number, j 2 =-1;

[0010] S2, the harmonic sum function constructed according to the S1 step , calculate the optimal sound pressure of the harmonic ultrasonic wave formed by the first ultrasonic wave and the second ultrasonic wave on the i-th point on the surface of the turbine shell to be cleaned the optimal real-time solution concentration in the cleaning tank (1) :

[0011]

[0012]

[0013] wherein S is the area of the turbine shell to be cleaned, is the real-time solution concentration in the cleaning tank (1) obtained by real-time monitoring by the liquid concentration sensor, is the real-time temperature in the cleaning tank obtained by real-time monitoring by the temperature sensor, c is the ultrasonic wave propagation speed, Q is the ultrasonic wave frequency, Q = (ω1+ω2) / c, D is the distance between the i-th point on the turbine shell to be cleaned and the ultrasonic wave generator, wherein, and are the x-axis coordinate value, y-axis coordinate value and z-axis coordinate value of the ultrasonic cleaner in the body coordinate system, respectively; is the real-time solution concentration coefficient in the cleaning tank;

[0014] S3, using HNN algorithm to optimize the optimal real-time solution concentration calculated in the S2 step , compare the optimized real-time solution concentration with the minimum concentration threshold value , min which ensures that the turbine shell to be cleaned is cleaned completely;

[0015] S4, determine whether it is lower than the minimum concentration threshold value , min, if it is lower, control the first electromagnetic valve to open, otherwise repeat the steps S1-S3.

[0016] Further, the real-time solution concentration coefficient in the cleaning tank in the S2 step is calculated according to the following formula:

[0017] wherein, is the first weight coefficient,​ is a second weight coefficient, is a third weight coefficient, = 0.7, = 0.15, = 0.15.

[0018] Further, the S3 step employs the HNN algorithm to optimize the optimal real-time solution concentration calculated in the S2 step , comprising the following steps:

[0019] S31, setting the relevant weight coefficient of the kth optimal real-time solution concentration at time t to the u-th generation optimal real-time solution concentration ; ;

[0020] S32, initializing the kth optimal real-time solution concentration , setting its initial output value ;

[0021] S33, performing a generation-by-generation optimization iteration on the kth optimal real-time solution concentration , calculating the output value of the n+1th generation from the output value of the nth generation ;

[0022] S34, according to the flow of the steps S31-S33, calculating the output value of the 1st optimal real-time solution concentration to the Mth optimal real-time solution concentration in the n+1th generation after the iteration from the nth generation to the n+1th generation;

[0023] S35, judging whether the output values of the M optimal real-time solution concentrations in the n+1th generation converge to a constant value and no longer change, if yes, outputting the constant value to which each optimal real-time solution concentration in the n+1th generation converges, otherwise repeating the steps S31-S34 to optimize the relevant weight coefficient set in the step S31 .

[0024] Further, the relevant weight coefficient set in the step S31 is as follows: when k = u, = 0; when k ≠ u, ; wherein, k ∈ [1, M], u ∈ [1, M], each optimal real-time solution concentration is a neuron in the HNN network, and M is the total number of neurons in the HNN network.

[0025] Further, the step S33 calculates the output value of the n+1th generation from the output value of the nth generation ​​​​The calculation formula is as follows:

[0026]

[0027] wherein, is a saturation function, is the kth optimal real-time solution concentration of the optimization threshold.

[0028] Further, the transmission assembly comprises a support fixedly connected to the inner wall of the water inlet pipe, a transmission rotating column rotatably connected to the inner wall of the support, a rotating fan blade fixedly connected to the outer wall of the transmission rotating column and close to one side of the water inlet pipe, the rotating fan blade being arranged in an inclined manner, the transmission assembly further comprising a movable rotating plate fixedly connected to one side of the transmission rotating column, and a movable pushing column fixedly connected to one side of the movable rotating plate, the outer wall of the movable pushing column being sleeved with a movable member initially arranged vertically, one side of the movable member being fixedly connected with a piston push rod, the outer wall of the piston push rod being slidably connected with a limiting support, one end of the piston push rod being fixedly connected with a piston push plate arranged in the liquid storage tank, the outer wall of the piston push plate being slidably connected with a liquid storage tank, and the outer wall of the liquid inlet pipe of the liquid storage tank being fixedly connected with a one-way valve.

[0029] Further, each of the drying devices is fixedly connected with a drying switch close to one side of the liquid discharge pipe, the drying device comprising two circular leaf collecting fans arranged in the side wall of the cleaning tank where the liquid discharge pipe is located, the drying switch being located at the center axis of the circular leaf collecting fan and outside the side wall of the cleaning tank; the inside of the cleaning tank is provided with two limiting clamping grooves on the side wall where the liquid discharge pipe is located, each limiting clamping groove corresponding to the inside and outside of the corresponding drying device on the side wall where the liquid discharge pipe is located, and the inner wall of each limiting clamping groove being slidably connected with a water baffle that can slide up and down, each water baffle being fixedly connected with a floating block close to one side of the inner cavity of the cleaning tank, each floating block being located above the circular hole of the side wall of the cleaning tank where the corresponding circular leaf collecting fan is located when the cleaning tank is filled with cleaning solution and the liquid discharge pipe is closed.

[0030] Further, the inside of the drain pipeline is rotationally connected with a transmission rotating rod along its axial direction, one side of the transmission rotating rod close to the inner cavity of the cleaning box is fixedly connected with a waterwheel fan blade, the other side of the transmission rotating rod is fixedly connected with a transmission gear, the outer wall of the transmission gear is engaged with an upper movable rack and a lower movable rack, the upper movable rack is fixedly connected with an upper movable rod on the side away from the liquid storage tank, the lower movable rack is fixedly connected with a lower movable rod on the side close to the liquid storage tank, the side of each movable rod away from the movable rack is fixedly connected with a corresponding extrusion plate, the side of each corresponding extrusion plate towards the outer wall of the drain pipeline is fixedly connected with a return spring, the other end of each return spring is fixedly connected on the outer wall of the drain pipeline, and each corresponding extrusion plate and each drying switch on the drying device are on the same horizontal line and correspond to each other.

[0031] Further, the inside of the drain pipeline is rotationally connected with a transmission rotating rod along its axial direction, one side of the transmission rotating rod close to the inner cavity of the cleaning box is fixedly connected with a waterwheel fan blade, the other side of the transmission rotating rod is fixedly connected with a transmission gear, the outer wall of the transmission gear is engaged with an upper movable rack and a lower movable rack, the upper movable rack is fixedly connected with an upper movable rod on the side away from the liquid storage tank, the lower movable rack is fixedly connected with a lower movable rod on the side close to the liquid storage tank, the side of each movable rod away from the movable rack is fixedly connected with a corresponding extrusion plate, the side of each corresponding extrusion plate towards the outer wall of the drain pipeline is fixedly connected with a return spring, the other end of each return spring is fixedly connected on the outer wall of the drain pipeline, and each corresponding extrusion plate and each drying switch on the drying device are on the same horizontal line and correspond to each other.

[0032] The beneficial effects of the present application are:

[0033] 1. The gap no dead angle cleaning turbine shell cleaning device provided by the present application is provided with a transmission assembly with a movable rotating plate and a movable part connected with the water inlet pipeline and the liquid storage tank, the first electromagnetic valve is controlled to be opened to open the water inlet pipeline, clean water is input into the cleaning box 1, after the first electromagnetic valve is opened, the outside cleaning solution raw liquid is drawn into the liquid storage tank by the piston vacuum principle, then enters the cleaning box through the liquid discharge pipeline and the liquid inlet pipeline, when the clean water enters the cleaning box through the water inlet pipeline, the water flow will impact the rotating fan blade to make the transmission rotating column rotate, the transmission rotating column will drive the circular movable plate to move the movable push column, the movable push column will drive the movable part to move the piston push rod, the piston push rod will drive the piston push plate to extrude the cleaning liquid in the liquid storage tank, the cleaning liquid will be discharged into the cleaning box through the liquid discharge pipeline, thus the amount of cleaning liquid discharged can be adjusted according to the water flow, the problem that the cleaning liquid concentration is too high or too low caused by manual addition of cleaning liquid by the staff is solved, then the clean water entering through the water inlet pipeline is diluted to the appropriate concentration for cavitation cleaning of the turbine shell surface with the ultrasonic cleaner, the single-chip microcomputer controls the first electromagnetic valve to be closed, and the ultrasonic cleaner is opened to clean the turbine shell surface.

[0034] 2. The gap no dead angle cleaning turbine shell cleaning device provided by the present application is provided with a single-chip microcomputer to construct a harmonic sum function of the first ultrasonic wave and the second ultrasonic wave , then the sound pressure of each point on the area S composed of M points on the turbine shell surface is calculated The maximum optimal real-time solution concentration , and further ensure that when the original washing solution in the cleaning tank 1 after the equal proportion dilution is not enough, the first electromagnetic valve is opened again to supplement the clean water and the washing solution original liquid at the same time, thereby realizing the cavitation assisted chemical cleaning turbine shell of the ultrasonic cleaner in the case of ensuring the preset temperature range, avoiding the phenomenon of penetration damage generated by the large sound pressure generated by the ultrasonic wave acting on the turbine shell surface, and the corrosion damage generated by the chemical cleaning of the turbine shell surface by the washing solution with high concentration.

[0035] 3、The gap no dead angle cleaning turbine shell cleaning device provided by the present application calculates the optimal real-time solution concentration in S2 step , and further uses the calculation formula to calculate the output value of the nth generation , the output value of the n+1 generation, and the related weight coefficient is constantly optimized to obtain the optimal real-time solution concentration of the convergence value. The HNN algorithm optimization can accurately improve the accuracy of the calculation result.

[0036] 4、The gap no dead angle cleaning turbine shell cleaning device provided by the present application is provided with a water baffle and a floating block. When the water in the cleaning tank is discharged through the drain pipe, the floating block will drive the water baffle to move downward, so that the drying device is not blocked and can be aligned with the turbine shell. At the same time, the water flow in the drain pipe will impact the waterwheel fan blade to drive the transmission rotating rod to rotate, the transmission rotating rod will drive the transmission gear to mesh with the movable rack, the movable rack will drive the movable rod to move the corresponding type of extrusion plate, the corresponding type of extrusion plate will extrude the drying switch to open the drying device, and the drying device will dry the turbine shell to avoid the cleaning liquid remaining in the turbine shell. BRIEF DESCRIPTION OF DRAWINGS

[0037] In the following, the application will be described in more detail based on embodiments and with reference to the drawings. In which:

[0038] Figure 1 It is a schematic diagram of the overall structure of the present application.

[0039] Figure 2 It is a flowchart of the present application for the single-chip microcomputer to realize the cleaning of each point on the surface of the turbine shell with the optimal sound pressure.

[0040] Figure 3 It is a sectional view of the water inlet pipe structure of the present application.

[0041] Figure 4 It is an enlarged view of the A part structure of the present application. Figure 3

[0042] Figure 5 It is a sectional view of the drying device structure of the present application.​

[0043] Figure 6 Enlarged view of the C part structure of the present application Figure 5

[0044] Figure 7 Cross-sectional view of the temperature guide tube structure of the present application.

[0045] Figure 8 Cross-sectional view of the drainage pipe structure of the present application.

[0046] Figure 9 Enlarged view of the B part structure of the present application Figure 8

[0047] Figure 10 Schematic diagram of the frequency change of the primary ultrasonic wave emitted by the ultrasonic wave generator obtained by real-time monitoring of the present application.

[0048] Figure 11 Schematic diagram of the frequency change of the secondary ultrasonic wave emitted by the ultrasonic wave transducer obtained by real-time monitoring of the present application.

[0049] Figure 12 Schematic diagram of the optimal sound pressure change with time when the optimal real-time solution concentration is reached in the preset temperature range controlled by the single-chip microcomputer of the present application.

[0050] Figure 13 Accuracy of the optimization results of the HNN algorithm, GA algorithm and ANN algorithm of the present application changes with time.

[0051] The reference signs are: 1, cleaning box; 2, water inlet pipe; 3, drainage pipe; 4, ultrasonic wave generator; 5, support; 6, transmission rotating column; 7, rotating fan blade; 8, movable rotating plate; 9, movable pushing column; 10, movable part; 11, piston pushing rod; 12, limiting support; 13, piston pushing plate; 14, liquid storage tank; 15, liquid discharge pipe; 16, liquid inlet pipe; 17, one-way valve; 18, drying device; 19, drying switch; 20, corresponding type extrusion plate; 21, limiting clamping groove; 22, water baffle; 23, floating block; 24, transmission rotating rod; 25, waterwheel fan blade; 26, transmission gear; 27, movable rack; 28, movable rod; 29, return spring; 30, filter screen; 31, movable scraping plate. DETAILED DESCRIPTION

[0052] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application. ​​

[0053] As Figure 1 , Figures 3-9 shown, the gap no dead cleaning turbine shell cleaning device, including cleaning box 1, water inlet pipe 2 and drain pipe 3, water inlet pipe 2 is communicated with the side of cleaning box 1, drain pipe 3 is communicated with the outer wall of cleaning box 1, water inlet pipe 2 is linked with the piston push plate 13 in the inside of liquid storage tank 14 through transmission assembly, liquid storage tank 14 side is communicated with liquid discharge pipe 15, the other end of liquid discharge pipe 15 is communicated with cleaning box 1, the outer wall of liquid storage tank 14 is communicated with liquid inlet pipe 16 for delivering cleaning solution to cleaning box 1, cleaning box 1 is provided with drain pipe 3 on the side opposite to water inlet pipe 2, drain pipe 3 is used for discharging the sewage after cleaning out of cleaning box 1, the side wall of cleaning box 1 and liquid storage tank 14 opposite side is provided with ultrasonic cleaner 4 for emitting ultrasonic wave, the ultrasonic cleaner 4 used in the application is JA-100W series vibration ultrasonic generator equipment, liquid concentration sensor for monitoring the concentration of cleaning solution in the box in real time and temperature sensor for monitoring the temperature of cleaning solution in the box in real time are arranged in the inside of cleaning box 1, heating rod 32 is arranged on the side wall of cleaning box 1 below ultrasonic cleaner 4, heating rod 32 is used for heating the liquid in cleaning box 1, the heating rod 32 used in the application is JSD-GR series high-power heating rod, drying device 18 is further arranged on both sides of liquid discharge pipe 3, the drying device 18 used in the application is RB-81D-1 series drying high-pressure fan equipment, the first electromagnetic valve for opening and closing water inlet pipe 2, the second electromagnetic valve for opening and closing drain pipe 3, liquid concentration sensor, temperature sensor, ultrasonic cleaner 4 and heating rod 32 are all connected with single-chip microcomputer remote communication, the single-chip microcomputer controls the first electromagnetic valve to open at the same time controls the second electromagnetic valve to close to make the cleaning solution stock solution flow through liquid inlet pipe 16 into cleaning box 1 after being diluted by the same proportion of clean water of water inlet pipe 2 after being filled in cleaning box 1, controls heating rod 32 to open to heat the cleaning solution in cleaning box 1 to the preset cleaning temperature range, then controls ultrasonic cleaner 4 to ensure the optimal real-time solution concentration in cleaning box 1 at the same time, realizes the cleaning of each point on the surface of the turbine shell to be cleaned by the optimal sound pressure.

[0054] When the turbine shell is cleaned by the turbine shell cleaning device with the gap dead angle cleaning function, the turbine shell is first put into the cleaning box 1, then the first electromagnetic valve is opened and the second electromagnetic valve is closed, the external clean water enters the cleaning box 1 through the water inlet pipeline 2, and the entering clean water cannot be discharged out of the cleaning box 1 through the water outlet pipeline 3 due to the closing of the second electromagnetic valve. Through the action of the transmission assembly, the external cleaning solution raw liquid is drawn into the liquid storage tank 14 by the piston vacuum principle, and each component in the cleaning solution raw liquid is diluted in equal proportion by the entering clean water, and then the cleaning solution is diluted to a concentration suitable for cavitation cleaning of the turbine shell surface dirt by the ultrasonic cleaner 4. Then, the first electromagnetic valve is closed, and the ultrasonic cleaner 4 is opened. Under the action of the single-chip microcomputer, the ultrasonic cleaner 4 performs cavitation on the cleaning solution in the cleaning box 1, forms small bubbles to impact the turbine shell surface, and makes the dirt, carbon deposition, oil layer and the like adhered to the turbine shell surface gradually loose by the impact of the small bubbles with sound pressure generated by cavitation. At the same time, due to the cavitation, fine bubbles are formed in the cleaning solution, thereby increasing the chemical reaction contact area between each component in the cleaning solution and the dirt, carbon deposition, oil layer and the like on the turbine shell surface, and each component carried by the fine bubbles is more easily chemically reacted with the dirt and the like on the turbine shell surface, thereby shortening the chemical reaction process. At the same time, the concentration of the chemical reaction reagent does not need to be increased unnecessarily to achieve the cleaning effect. In this process, the heating rod controls the temperature of the cleaning solution in the cleaning box 1 to clean the turbine shell surface by the ultrasonic cleaner 4 at the most suitable chemical reaction and physical dissolution temperature, so that each point of the turbine shell surface to be cleaned is cleaned by the optimal sound pressure under the condition that the solution in the cleaning box 1 reaches the preset cleaning temperature range under the control of the single-chip microcomputer, and the optimal real-time solution concentration in the cleaning box 1 is ensured. The first electromagnetic valve is controlled in real time to ensure that the ultrasonic cleaner 4 has the best effect of physical impact and chemical reaction cleaning on the turbine shell, and the phenomena of penetration damage caused by the large sound pressure generated by the ultrasonic wave acting on the turbine shell surface and corrosion damage caused by the chemical reagent cleaning of the turbine shell surface by the cleaning solution with a large concentration are avoided.

[0055] When the cleaning is completed, the single-chip microcomputer controls the second electromagnetic valve to be opened, the cleaned sewage is discharged through the liquid outlet pipeline 3, and the drying device 18 is opened to dry the turbine shell in the cleaning box 1, so as to avoid rust caused by the residual water stains remaining on the turbine shell surface for a long time.

[0056] The composition of the cleaning solution stock solution can be selected from the turbine shell cleaning solvents disclosed in the prior art, such as the turbine supercharger shell cleaning solvent ratio composition disclosed in application numbers 200810246911.7, 201010106657.8, 201910897063.4, or 201710612076.3, etc.

[0057] As a preferred embodiment of the present application, the ultrasonic generator 4 comprises an ultrasonic generator and an ultrasonic transducer, the ultrasonic transducer is used to receive the ultrasonic waves of sinusoidal waveform emitted by the ultrasonic generator, and convert the electrical energy emitted by the ultrasonic generator into acoustic energy to clean the turbine shell in the cleaning tank 1 without dead angle; the single-chip microcomputer controls the ultrasonic generator 4 to ensure the optimal real-time solution concentration in the cleaning tank 1 at the same time, and realizes the cleaning of each point on the surface of the cleaned turbine shell with optimal acoustic pressure, as shown in Figure 2 , comprising the following steps:

[0058] S1, real-time monitoring of the frequency of the primary ultrasonic wave emitted by the ultrasonic generator in the ultrasonic generator 4 and the frequency of the secondary ultrasonic wave emitted by the ultrasonic transducer after transduction , constructing a harmonic sum function formed by the primary ultrasonic wave and the secondary ultrasonic wave :

[0059]

[0060] wherein, and are the amplitudes of the normal velocity components of the i-th point on the surface of the cleaned turbine shell and , respectively, is the normal velocity component of the i-th point on the surface of the cleaned turbine shell, is the i-th point on the surface of the turbine shell in its body coordinate system, and are the x-axis coordinate value, y-axis coordinate value and z-axis coordinate value of the i-th point in the body coordinate system, i=1, 2,..., N; j is an imaginary number, j 2 =-1; N points constitute all points on the area S of the cleaned turbine shell.

[0061] as shown in Figure 10 , is the frequency variation diagram of the primary ultrasonic wave emitted by the ultrasonic generator in the time domain obtained by real-time monitoring, Figure 11 as shown in , is the frequency variation diagram of the secondary ultrasonic wave emitted by the ultrasonic transducer in the time domain obtained by real-time monitoring;

[0062] , calculate the harmonic ultrasonic wave formed by the primary ultrasonic wave and the secondary ultrasonic wave finally output by the ultrasonic transducer on the i-th point on the surface of the turbine shell being cleaned Optimal sound pressure The optimal real-time solution concentration in the cleaning tank 1 at :

[0063]

[0064]

[0065] Where S is the area of ​​the turbine shell to be cleaned, which can be found by looking up the corresponding 3D design software or standard models of different turbine shells to be cleaned. is the real-time solution concentration in the cleaning tank 1 monitored by the liquid concentration sensor in real time, is the real-time temperature inside the cleaning box 1 monitored by the temperature sensor, c is the ultrasonic wave propagation speed, Q is the ultrasonic wave frequency, Q=(ω1+ω2) / c, D is the distance between the i-th point on the turbine shell being cleaned and the ultrasonic generator 4, ,in, and are respectively the x-axis coordinate value, y-axis coordinate value and z-axis coordinate value of the ultrasonic cleaner (4) in the body coordinate system; is the real-time solution concentration coefficient in the cleaning tank 1;

[0066] like Figure 12 As shown, the optimal sound pressure constructed in step S2 is when the single chip microcomputer control method of the present invention is used to control the technical effect of cavitation-assisted chemical cleaning of the turbine shell to achieve the optimal cleaning solution concentration while ensuring the preset temperature range. The calculation results change with time.

[0067] in, After the control heating rod 32 preset by the single chip is turned on, the cleaning solution in the cleaning box 1 is heated to the cleaning temperature range required to be reached. Maintaining it within this temperature range can enable the cleaning solution diluted in equal proportion to achieve the best cleaning effect for the ultrasonic vibration cleaning after the ultrasonic cleaner 4 is turned on, and give full play to the various surfactants and other components in the cleaning solution to assist the cavitation bubbles generated by the ultrasonic wave to clean the residual dirt in the dead corners on the surface of the turbine shell;

[0068] The frequency of the secondary ultrasonic wave emitted by the ultrasonic transducer after the ultrasonic cleaner 4 is turned on is controlled by the single chip microcomputer. The preset range, thereby ensuring that the total sum of the harmonics formed by the first ultrasonic wave and the second ultrasonic wave is not too large to penetrate and damage the turbine shell to be cleaned, and ensuring that the generated harmonics can reach the frequency required to effectively clean the dirt in the dead angle of the turbine shell;

[0069] S3, using HNN algorithm to optimize the optimal real-time solution concentration calculated in S2 The optimized real-time solution concentration is compared with the minimum concentration threshold value min required to ensure that the cleaned turbine shell is clean;

[0070] S4, determining whether it is lower than the minimum concentration threshold min, if lower, the first electromagnetic valve is opened, otherwise steps S1-S3 are repeated. min is different according to different cleaning solution formulations and different turbine shell models, which can be further limited according to different conditions. Preferably, the real-time solution concentration coefficient calculation formula in the cleaning tank 1 in S2 is as follows:

[0071] , wherein, is the first weight coefficient, is the second weight coefficient, is the third weight coefficient, =0.7, =0.15, =0.15.

[0072] The real-time solution concentration coefficient provided by the application fully considers the frequency of the second ultrasonic wave emitted by the ultrasonic transducer and the influence of the solution concentration controlled in the preset temperature range , respectively giving the second weight coefficient and the third weight coefficient of the power index, and then adding the multiplier first weight coefficient, which improves the accuracy when calculating the optimal real-time solution concentration .

[0073] As another preferred embodiment of the application, in order to improve the accuracy of real-time control of the optimal real-time solution concentration in the cleaning tank 1, the optimal real-time solution concentration calculated in S2 is optimized in S3 , comprising the following steps:

[0074] S31, setting the related weight coefficients of the kth optimal real-time solution concentration to the u-th generation optimal real-time solution concentration at time t;

[0075] ​S32, initializing the kth optimal real-time solution concentration , setting its initial output value ;

[0076] S33, performing a generation-by-generation optimization iteration on the kth optimal real-time solution concentration , calculating the output value of the (n+1)th generation from the output value of the nth generation ;

[0077] S34, calculating the output value of the 1st to Mth optimal real-time solution concentration in the (n+1)th generation from the iteration of the nth generation to the (n+1)th generation according to the procedures of S21-S23 steps ;

[0078] S35, judging whether the output values of the M optimal real-time solution concentrations in the (n+1)th generation converge to constant values and no longer change, if yes, outputting the constant values to which the optimal real-time solution concentrations in the (n+1)th generation converge, comparing the constant values with the minimum concentration threshold value min that guarantees the cleaned turbine shell to be cleaned in S3 step, otherwise repeating the steps S21-S24 to optimize the related weight coefficients set in S21 step .

[0079] Further preferably, the related weight coefficients set in S31 step are as follows: when k=u, ; when k≠u, ; wherein, k∈[1, M], u∈[1, M], each optimal real-time solution concentration is a neuron in the HNN network, and M is the total number of neurons in the HNN network.

[0080] Further preferably, the calculation formula of the output value of the (n+1)th generation from the output value of the nth generation in S33 step is as follows:

[0081]

[0082] wherein, is a saturation function, i.e. is the saturation value result when calculating in different value ranges, when, is the optimization threshold value of the kth optimal real-time solution concentration .

[0083] As shown in Figure 13 , the HNN algorithm optimization provided by the application adopts the ​​​​​​The calculation formula calculates the output value of the nth generation The output value of the n+1 generation is calculated, and the optimal real-time solution concentration of the related weight coefficient is constantly optimized to obtain the convergence value, which has higher accuracy than the GA algorithm and the ANN algorithm.

[0084] As another preferred embodiment of the present application, as shown in Figures 3-4 The transmission assembly includes a support 5 fixedly connected to the inner wall of the water inlet pipe 2, a transmission rotating column 6 rotatably connected in the inner wall of the support 5, a rotating fan blade 7 fixedly connected to the outer wall of the transmission rotating column 6 and close to one side of the water inlet pipe 2, the rotating fan blade 7 is arranged in an inclined manner, the transmission assembly further includes a movable rotating plate 8 fixedly connected to the side of the transmission rotating column 6 away from the water inlet pipe 2, and a movable pushing column 9 fixedly connected to the side of the movable rotating plate 8 away from the liquid storage tank 14, the outer wall of the movable pushing column 9 is sleeved with a movable part 10 initially arranged vertically, as shown in Figure 7 The side of the movable part 10 close to the liquid storage tank 14 is fixedly connected with a piston pushing rod 11, the outer wall of the piston pushing rod 11 is slidingly connected with a limiting support 12, one end of the piston pushing rod 11 is fixedly connected with a piston pushing plate 13 arranged in the liquid storage tank 14, the outer wall of the piston pushing plate 13 is slidingly connected with the liquid storage tank 14, the outer wall of the liquid inlet pipe 16 of the liquid storage tank 14 is fixedly connected with a one-way valve 17. The area of the piston pushing plate 13 is the same as the cross-sectional area of the side of the liquid storage tank 14 and is in sealing contact with the four planes at the junction with the liquid storage tank 14, the liquid in the liquid storage tank 14 entering from the liquid inlet pipe 16 will be sealed by the piston pushing plate 13 to the space away from the side where the transmission assembly is located, and then under the driving of the transmission assembly, the piston pushing plate 13 will move left and right, and then the liquid storage tank 14 will intermittently form a negative pressure to make the one-way valve 17 arranged on the liquid inlet pipe 16 open, and then the prepared cleaning solution stock solution stored outside enters the liquid storage tank 14, and then enters the cleaning tank 1 through the liquid outlet pipe 15. In this process, since the water flow also enters the cleaning tank through the water inlet pipe 2, the cleaning solution stock solution is diluted in equal proportion, thereby meeting the cleaning solution concentration in the ultrasonic cleaning process.

[0085] As another preferred embodiment of the present application, as shown in Figure 3 , Figure 5 and Figure 6As shown, each drying device 18 is fixedly connected with a drying switch 19 on one side close to the drainage pipeline 3. The drying device 18 comprises two circular leaf collecting fans arranged in the side wall of the cleaning tank 1 where the drainage pipeline 3 is located. The drying switch 19 is located at the center axis of the circular leaf collecting fan and outside the side wall of the cleaning tank 1. Two limiting clamping grooves 21 are arranged on the side wall of the cleaning tank 1 where the drainage pipeline 3 is located. Each limiting clamping groove 21 corresponds to the inside and outside of the corresponding drying device 18 on the side wall where the drainage pipeline 3 is located. The inner wall of each limiting clamping groove 21 is slidably connected with a water baffle 22 which can slide up and down. Each water baffle 22 is fixedly connected with a floating block 23 on one side close to the inner cavity of the cleaning tank 1. When the cleaning tank 1 is filled with cleaning solution and the drainage pipeline 3 is closed, each floating block 23 is located at the upper part of the circular hole of the side wall of the cleaning tank 1 where the corresponding circular leaf collecting fan is located.

[0086] Preferably, the water baffle 22 is made of flexible and collapsible waterproof sealing material. The initial position is that the floating block 23 is located at the upper part of the circular hole of the side wall of the cleaning tank 1 where the corresponding circular leaf collecting fan is located. At this time, the water baffle 22 is stretched from the state of being collapsed and stored at the bottom of the cleaning tank 1 to completely block the circular hole of the drying device 18 by the floating block 23, so that water cannot overflow out of the side wall of the cleaning tank 1,

[0087] Further preferably, as shown in Figure 8 , Figure 9 The inner part of the drainage pipeline 3 is rotationally connected with a transmission rotating rod 24 along the axial direction thereof. The side of the transmission rotating rod 24 close to the inner cavity of the cleaning tank 1 is fixedly connected with a waterwheel fan blade 25. The other side of the transmission rotating rod 24 is fixedly connected with a transmission gear 26. The outer wall of the transmission gear 26 is engaged with an upper movable rack 27 and a lower movable rack 27. The two movable racks 27 are arranged in parallel. The side of the upper movable rack 27 away from the storage tank 14 is fixedly connected with a movable rod 28. The side of the lower movable rack 27 close to the storage tank 14 is fixedly connected with a movable rod 28. The side of each movable rod 28 away from the movable rack 27 is fixedly connected with a corresponding extrusion plate 20. The side of each corresponding extrusion plate 20 close to the outer wall of the drainage pipeline 3 is fixedly connected with a return spring 29. The other end of each return spring 29 is fixedly connected to the outer wall of the drainage pipeline 3. Each corresponding extrusion plate 20 and the drying switch 19 on each drying device 18 correspond to each other on the same horizontal line. When the second electromagnetic valve on the drainage pipeline 3 is controlled by the single-chip microcomputer to discharge waste liquid, the floating block located at the lower part of the circular hole of the side wall of the cleaning tank 1 where the two drying devices 18 are located moves downward with the water level, and finally adheres to the bottom surface of the cleaning tank 1. At this time, the water baffle 21 is completely stored into the storage device in the bottom surface of the cleaning tank 1, thereby making the circular hole of the drying device 18 completely communicate with the outside, and the transmission rotating rod 24 rotates in the direction as shown in Figure 6The angle shown rotates counterclockwise, causing the upper portion 27 to move to the left, away from the liquid storage tank 14, while the lower portion 27 moves to the right, closer to the liquid storage tank 14. Consequently, the two corresponding extrusion plates 20 on the left and right sides of the drain pipe 3 approach the corresponding drying switches 19, eventually touching each other, turning on the leaf-collecting fans in the drying devices 18 on both sides, draining and drying the inside of the washing tank 1. Because the corresponding extrusion plates 20 are fixedly connected to the outer wall of the drain pipe 3 and one side of the corresponding extrusion plate 20 at both ends, and the corresponding extrusion plates are stretched by the continuous outward extension of the movable rack 27, when each corresponding extrusion plate 20 touches the drying switch 19, it returns to its original position due to the retraction force generated by the stretched corresponding return spring 29.

[0088] More preferably, Figure 5 As shown, the drainage pipe 3 is fixedly connected to a filter screen 30 on the cylindrical inner wall near the inner cavity of the cleaning box 3, and a movable scraper plate 31 is fixedly connected to the circumferential outer wall of the transmission rotating rod 24 on the side near the inner cavity of the cleaning box 1 relative to the waterwheel fan blade 25. The movable scraper plate 31 is slidably connected to the side wall of the filter screen 30 near the inner cavity of the cleaning box 1. When the cleaning wastewater is discharged to the outside of the drainage pipe 3, the impact of the water flow in the cleaning box 1 causes the transmission rotating rod 24 to rotate, thereby driving the movable scraper plate 31 to rotate in place, and then scraping the filter screen 30 with a radius of the same length as its length on the inner side of the cleaning box 1, thereby preventing the drainage pipe 13 from being blocked by residues in the wastewater and dirt such as floating oil washed out by the cleaning solution.

[0089] In the present invention, unless otherwise expressly specified or limited, the terms "install," "connect," "connect," "fix," and the like should be understood in a broad sense. For example, they may refer to fixed connections, removable connections, or integration; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal connections between two components or interactions between two components. There are various methods for removable installation, such as plug-in and snap-fit ​​connections, or bolt connections.

[0090] The above description of the embodiments and the drawings clearly and completely describes the concept, specific structure and generated technical effects of the present application, so as to fully understand the purpose, features and effects of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, not all the embodiments, and other embodiments obtained by those skilled in the art based on the embodiments of the present application without creative labor are within the protection scope of the present application. In addition, all the coupling / connection relationships mentioned in the text do not mean that the components are directly connected, but that a better coupling structure can be formed by adding or reducing coupling accessories according to the specific implementation.

[0091] The above description of the embodiments of the present application is only used to further illustrate the present application and cannot be understood as limiting the protection scope of the present application. The skilled in the art can make some non-essential improvements and adjustments to the present application according to the above content of the present application, which are all within the protection scope of the present application.

Claims

1. A turbine casing cleaning device for gapless cleaning, comprising a cleaning tank, a water inlet conduit and a water outlet conduit, characterized in that, The water inlet pipeline is communicated with one side of the cleaning tank, the water outlet pipeline is communicated with the outer wall of the cleaning tank, the water inlet pipeline is connected with the piston push plate in the liquid storage tank through the transmission assembly, one side of the liquid storage tank is communicated with the liquid outlet pipeline, the other end of the liquid outlet pipeline is communicated with the cleaning tank, the outer wall of the liquid storage tank is communicated with the liquid inlet pipeline for conveying the cleaning liquid into the cleaning tank, the cleaning tank is provided with the water outlet pipeline on the side opposite to the water inlet pipeline, the side wall opposite to the liquid storage tank of the cleaning tank is further provided with the ultrasonic cleaner for emitting ultrasonic waves, the cleaning tank is internally provided with the liquid concentration sensor for monitoring the concentration of the cleaning liquid in the tank in real time and the temperature sensor for monitoring the temperature of the cleaning liquid in the tank in real time, the lower part of the ultrasonic cleaner is provided with the heating rod on the side wall of the cleaning tank, the liquid outlet pipeline is further provided with the drying device on both sides, the first electromagnetic valve for opening and closing the water inlet pipeline, the second electromagnetic valve for opening and closing the water outlet pipeline, the liquid concentration sensor, the temperature sensor, the ultrasonic cleaner and the heating rod are all remotely communicated with the single-chip microcomputer, the single-chip microcomputer controls the first electromagnetic valve to be opened and controls the second electromagnetic valve to be closed at the same time, then controls the heating rod to be opened to heat the cleaning solution in the cleaning tank to the preset cleaning temperature range, and then controls the ultrasonic cleaner to ensure the optimal real-time solution concentration in the cleaning tank, so that each point on the surface of the cleaned turbine shell is cleaned under the optimal sound pressure; The ultrasonic cleaner comprises an ultrasonic generator and an ultrasonic transducer, the ultrasonic transducer is used for receiving the ultrasonic waves in the form of sinusoidal wave emitted by the ultrasonic generator, and converting the electric energy emitted by the ultrasonic generator into acoustic energy, so as to clean the turbine shell in the cleaning tank without dead angle; the single-chip microcomputer controls the ultrasonic cleaner to ensure the optimal real-time solution concentration in the cleaning tank at the same time, so that each point on the surface of the cleaned turbine shell is cleaned under the optimal sound pressure, including the following steps: S1, real-time monitoring of the ultrasonic cleaner in the ultrasonic generator issued a frequency ω1 ultrasonic and ultrasonic transducer transduced after the emission of secondary ultrasonic frequency ω2, the first ultrasonic and secondary ultrasonic harmonic sum function V(t,x i ,y i ,z i ) is constructed wherein V1(t,x i ,y i ,z i ) and V2(t,x i ,y i ,z i ) are amplitudes of normal velocity components of the i-th point r(x i ,y i ,z i ) on the surface of the turbine shell being cleaned due to frequencies ω1and ω2, respectively, r(x i ,y i ,z i ) is the i-th point on the surface of the turbine shell in its body coordinate system, x i , y i , and z i are x-axis coordinate value, y-axis coordinate value, and z-axis coordinate value of the i-th point in the body coordinate system, respectively, i = 1, 2,..., N; j is an imaginary number, j 2 = -1; S2, the harmonic sum function V(t,x i ,y i ,z i ), calculate the harmonic ultrasonic wave formed by the primary ultrasonic wave and the secondary ultrasonic wave finally output by the ultrasonic transducer to the i-th point r(x i ,y i ,z i )'s optimal sound pressure p(t,r(x i ,y i ,z i )) The optimal real-time solution concentration ρ in the cleaning box s,e (t): Wherein, S is the area of the turbine shell to be cleaned, p s is the real-time solution concentration in the cleaning tank obtained by real-time monitoring by the liquid concentration sensor, T(t) is the real-time temperature in the cleaning tank obtained by real-time monitoring by the temperature sensor, c is the ultrasonic wave propagation speed, Q is the ultrasonic wave frequency, Q=(ω1+ω2) / c, D is the distance between the i-th point on the turbine shell to be cleaned and the ultrasonic cleaning device, Wherein, X0, Y0 and Z0 are the x-axis coordinate value, y-axis coordinate value and z-axis coordinate value of the ultrasonic cleaning device in the body coordinate system respectively; C s is the real-time solution concentration coefficient in the cleaning tank; S3, using HNN algorithm to optimize the optimal real-time solution concentration ρ calculated in the step S2 s,e (t), comparing the optimized real-time solution concentration with the minimum concentration threshold ρ ensuring the turbine shell to be cleaned completely s,min ; S4, judging whether it is lower than a minimum concentration threshold p s,min If it is lower, the first electromagnetic valve is opened, otherwise the steps S1-S3 are repeated.

2. The turbine casing cleaning arrangement of claim 1, wherein, The real-time solution concentration coefficient in the cleaning tank (1) in the S2 step is calculated according to the following formula: wherein a1 is a first weight coefficient, a2 is a second weight coefficient, and a3 is a third weight coefficient, a1 = 0.7, a2 = 0.15, and a3 = 0.

15.

3. The turbine casing cleaning apparatus of claim 1, wherein, The S3 step adopts HNN algorithm to optimize the optimal real-time solution concentration ρ calculated in the S2 step s,e (t), comprising the following steps: S31, set the kth optimal real-time solution concentration at time t the correlation weight coefficient m of the u-th generation optimal real-time solution concentration k,u ;​ S32, initialize the kth optimal real-time solution concentration set its initial output value S33, to the kth optimal real-time solution concentration The optimization iteration is performed generation by generation according to the output value y of the nth generation k (n) calculating the output value y of the n+1th generation k (n+1); S34. Calculate the output value of the 1st optimal real-time solution concentration in the nth+1 generation after the iteration from the nth generation to the nth+1 generation according to the flow of the steps S31-S33. to the Mth optimal real-time solution concentration in the nth+1 generation. S35, judging whether the output values of the M optimal real-time solution concentrations in the n+1th generation converge to constant values without further change, if yes, outputting the constant values to which the M optimal real-time solution concentrations in the n+1th generation converge, otherwise, repeating the steps S31-S34 to optimize the relevant weight coefficients m set in the step S31 k,u .

4. The turbine casing cleaning arrangement of claim 3, wherein, The correlation weight coefficient m set in the S31 step k,u As follows: when k = u, m k,u = 0; when k ≠ u, Wherein, k ∈ [1, M], u ∈ [1, M], each optimal real-time solution concentration as a neuron in the HNN network, M is the total number of neurons in the HNN network.

5. The turbine casing cleaning apparatus of claim 3, wherein, The output value y of the S33 step according to the nth generation k (n) The output value y of the nth+1 generation is calculated k The calculation formula of (n+1) is as follows: where sat(·) is a saturation function, L k is the kth optimal real-time solution concentration of the optimization threshold.

6. The turbine casing cleaning apparatus of claim 1, wherein, The transmission assembly comprises a support fixedly connected to the inner wall of the water inlet pipeline, a transmission rotating column rotatably connected to the inner wall of the support, and a rotating fan blade fixedly connected to the outer wall of the transmission rotating column and close to one side of the water inlet pipeline, wherein the rotating fan blade is arranged in an inclined manner, the transmission assembly further comprises a movable rotating plate fixedly connected to one side of the transmission rotating column, and a movable push column fixedly connected to one side of the movable rotating plate, the outer wall of the movable push column is sleeved with a movable element initially arranged in a vertical manner, one side of the movable element is fixedly connected with a piston push rod, the outer wall of the piston push rod is slidably connected with a limiting support, one end of the piston push rod is fixedly connected with a piston push plate arranged in the liquid storage tank, and the outer wall of the piston push plate is slidably connected with the liquid storage tank, and the outer wall of the liquid inlet pipeline of the liquid storage tank is fixedly connected with a one-way valve.

7. The turbine casing cleaning apparatus of claim 1, wherein, Each of the drying devices is fixedly connected with a drying switch near one side of the drainage pipeline, the drying device comprises two circular leaf collecting fans arranged in the side wall of the cleaning tank where the drainage pipeline is located, the drying switch is located at the center axis of the leaf collecting fan and outside the side wall of the cleaning tank; the inside of the cleaning tank is provided with two limiting clamping grooves on the side wall where the drainage pipeline is located, each limiting clamping groove corresponds to the drying device on the inside and outside of the side wall where the drainage pipeline is located, the inner wall of each limiting clamping groove is slidably connected with a water baffle that can slide up and down, each water baffle is fixedly connected with a floating block near one side of the inner cavity of the cleaning tank, when the cleaning tank is filled with cleaning solution and the drainage pipeline is closed, each floating block is located above the circular hole of the side wall of the cleaning tank where the corresponding circular leaf collecting fan is located.

8. The gap-free cleaning turbine casing washing apparatus of claim 7, wherein, The inside of the drainage pipeline is rotatably connected with a transmission rotating rod along the axial direction, the waterwheel fan blade is fixedly connected to one side of the transmission rotating rod near the inner cavity of the cleaning tank, the transmission gear is fixedly connected to the other side of the transmission rotating rod, the outer wall of the transmission gear is engaged with an activity rack, the two activity racks are arranged in parallel, the activity rack located at the upper part is fixedly connected with an activity rod on the side away from the liquid storage tank, the activity rack located at the lower part is fixedly connected with an activity rod on the side near the liquid storage tank, the activity rod is fixedly connected with a corresponding extrusion plate on the side away from the activity rack, the corresponding extrusion plate is fixedly connected with a return spring on the side facing the outer wall of the drainage pipeline, the other end of the return spring is fixedly connected to the outer wall of the drainage pipeline, and each corresponding extrusion plate and the drying switch of each drying device correspond to each other on the same horizontal line.

9. The gap-free, dead-band-free cleaning turbine casing washing apparatus of claim 8, wherein, The drainage pipeline is fixedly connected with a filter screen on the cylindrical inner wall near the inner cavity of the cleaning tank, the circumferential outer wall of the transmission rotating rod is fixedly connected with an activity scraping plate, and the activity scraping plate is slidably connected to the side wall of the filter screen near the inner cavity of the cleaning tank.

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