CN119103529A - A boiler internal steam-water separator and its use and adjustment method - Google Patents
A boiler internal steam-water separator and its use and adjustment method Download PDFInfo
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- CN119103529A CN119103529A CN202411418912.0A CN202411418912A CN119103529A CN 119103529 A CN119103529 A CN 119103529A CN 202411418912 A CN202411418912 A CN 202411418912A CN 119103529 A CN119103529 A CN 119103529A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B37/00—Component parts or details of steam boilers
- F22B37/02—Component parts or details of steam boilers applicable to more than one kind or type of steam boiler
- F22B37/26—Steam-separating arrangements
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B37/00—Component parts or details of steam boilers
- F22B37/02—Component parts or details of steam boilers applicable to more than one kind or type of steam boiler
- F22B37/48—Devices or arrangements for removing water, minerals or sludge from boilers ; Arrangement of cleaning apparatus in boilers; Combinations thereof with boilers
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Abstract
本发明公开了一种锅炉内部汽水分离器及使用、调节方法，包括：主壳体，所述主壳体内部开设有主腔体，所述主壳体外侧固定连接有汽水进入管，所述主壳体外侧固定连接有出汽管；本发明中通过快速连接机构，可以迅速、方便地实现汽水进入管与外部管道的连接，同时两组弹簧杆的牵引力可以保证紧密连接，有效防止了漏液漏汽，通过双转子电机驱动清洁毛刷在细丝网板上旋转，能够自动清除细丝网板上可能附着的杂质，保持汽水进入管的通畅，提高运行效率，通过汽水进入管内设置的扇叶和双转子电机构成的风场系统，以及汽水进入管下方的屏蔽罩，共同作用下显著提高了汽水分离的效率，保证了汽水分离的效果。
The invention discloses a boiler internal steam-water separator and a use and adjustment method, comprising: a main shell, a main cavity is opened inside the main shell, a steam-water inlet pipe is fixedly connected to the outside of the main shell, and a steam outlet pipe is fixedly connected to the outside of the main shell; in the invention, a quick connection mechanism is used to quickly and conveniently connect the steam-water inlet pipe with an external pipeline, and at the same time, the traction force of two groups of spring rods can ensure a tight connection, effectively preventing liquid leakage and steam leakage, and a cleaning brush is driven by a dual-rotor motor to rotate on a fine wire mesh plate, which can automatically remove impurities that may be attached to the fine wire mesh plate, keep the steam-water inlet pipe unobstructed, and improve the operating efficiency, and the fan blades arranged in the steam-water inlet pipe and the wind field system composed of the dual-rotor motor, as well as the shielding cover below the steam-water inlet pipe, work together to significantly improve the efficiency of steam-water separation and ensure the effect of steam-water separation.
Description
Technical Field
The invention relates to the technical field of steam-water separator equipment, in particular to a steam-water separator in a boiler and a using and adjusting method thereof.
Background
In the prior art, the steam-water inlet pipe and the external pipeline are connected by adopting traditional bolt fastening or welding modes, the modes are complex in operation and low in connection speed, and the problems of loose connection and easy leakage possibly exist, especially under the working environment of high temperature and high pressure, the leakage risk is higher, the safety and the reliability of the system are influenced, meanwhile, in the steam-water separation process, the parts such as the filament net plate are easy to attach impurities and dirt, the steam-water separation effect is influenced, the manual regular disassembly and cleaning are possibly needed, the operation is complex, the efficiency is low, the labor cost and the maintenance difficulty are increased, and the steam-water separator inside the boiler and the using method are provided for solving the problems.
Disclosure of Invention
The invention aims to solve the problems of the prior art, provides a steam-water separator in a boiler and a using and adjusting method thereof, and has the advantages of being capable of rapidly and conveniently realizing connection of a steam-water inlet pipe and an external pipeline, automatically removing impurities possibly attached to a fine wire mesh plate and keeping the steam-water inlet pipe unobstructed, and solves the problems of the prior art.
The steam-water separator comprises a main shell, wherein a main cavity is formed in the main shell, a steam-water inlet pipe is fixedly connected to the outer side of the main shell, a steam outlet pipe is fixedly connected to the outer side of the main shell, two groups of side fixing blocks are fixedly connected to the outer sides of the steam inlet pipe and the steam outlet pipe, a quick connecting mechanism is arranged on the side face of each side fixing block, an external pipeline is arranged on the side face of each steam-water inlet pipe, and a liquid outlet valve is fixedly connected to the lower portion of the main shell;
The quick connecting mechanism comprises a rotating block, a spring rod is fixedly connected to the side face of the rotating block, an upper arc-shaped fixing plate is fixedly connected to the movable end of the spring rod, a lower arc-shaped fixing plate is connected to the lower arc-shaped fixing plate in a rotating mode, a fixing clamping block is fixedly connected to the lower arc-shaped fixing plate, a spring block groove is formed in the lower portion of the upper arc-shaped fixing plate, a shifting block groove penetrating through the side face of the upper arc-shaped fixing plate is formed in the side face of the spring block, a fixing spring block is fixedly connected to the side face of the spring block in a sliding mode, a supporting spring is fixedly connected to the side face of the fixing spring block, a movable shifting block is fixedly connected to the side face of the fixing spring block, and a clamping block is fixedly connected to the side face of the fixing spring block.
As a still further scheme of the invention, the side surface of the steam-water inlet pipe is rotationally connected with a fan blade, the lower part of the fan blade is fixedly connected with a first gear, the side surface of the steam-water inlet pipe is fixedly connected with a double-rotor motor, a rotating shaft above the double-rotor motor is fixedly connected with a second gear, the rotating shaft below the double-rotor motor is fixedly connected with a third gear, the side surface of the steam-water inlet pipe below the third gear is fixedly connected with a filament screen plate, the side surface of the steam-water inlet pipe above the filament screen plate is rotationally connected with a fourth gear, the lower part of the fourth gear is fixedly connected with a rotation fixing block, the lower part of the rotation fixing block is fixedly connected with a cleaning brush, and the lower part of the steam-water inlet pipe is fixedly connected with a shielding cover.
As a still further proposal of the invention, the quick connecting mechanism is rotationally connected with the side fixed block through a rotating block.
As a still further scheme of the invention, the movable plectrum is in sliding connection in the plectrum groove, one end of the supporting spring is fixedly connected with the fixed elastic block, the other end of the supporting spring is fixedly connected in the elastic block groove, a groove formed in the side surface of the fixed clamping block is matched with the clamping block, and the upper part of the fixed clamping block is wedge-shaped, so that the clamping block can be conveniently extruded into the elastic block groove.
As a still further scheme of the invention, a through hole slightly larger than the diameter of the steam-water inlet pipe is formed in the first gear, and a through hole slightly larger than the diameter of the steam-water inlet pipe is formed in the fourth gear.
As a still further proposal of the invention, the number of the rotary fixing blocks and the cleaning brushes is four, and the cleaning brushes are attached to the filament net plate.
As a still further proposal of the invention, the first gear is meshed with the second gear, and the third gear is meshed with the fourth gear.
As a still further aspect of the invention, the diameter of the bottom of the shield is slightly smaller than the diameter of the main cavity to allow liquid to pass through.
The invention also discloses a using method of the steam-water separator in the boiler, which comprises the following steps:
Before the steam-water separation process is started, a quick connecting mechanism is used for connecting the steam-water inlet pipe with an external pipeline, the steam-water inlet pipe is attached to a clamping ring of the external pipeline by rotating an upper arc-shaped fixing plate, and then the lower arc-shaped fixing plate is attached to the clamping ring of the external pipeline by rotating a lower arc-shaped fixing plate. In the process, the fixed clamping block can extrude the clamping block to enter the elastic block groove, the clamping block clamps the groove on the side face of the fixed clamping block, the quick connection between the steam-water inlet pipe and the external pipeline is realized, the traction force of the two groups of spring rods ensures the close fit between the steam-water inlet pipe and the external pipeline, and the phenomenon of liquid leakage and steam leakage is prevented;
The steam-water mixture is led into the main cavity through the steam-water inlet pipe, the steam-water mixture starts a preliminary steam-water separation process, fan blades arranged on the side face of the steam-water inlet pipe start to rotate under the drive of the double-rotor motor to generate a wind field, steam in the steam-water mixture is facilitated to rise, a liquid part is submerged under the action of gravity, meanwhile, a shielding cover below the steam-water inlet pipe prevents liquid drops from being attracted and floating by the wind field generated by the fan blades, so that the steam-water separation effect is further ensured, steam-water separation is preliminarily realized, a fine wire mesh plate is further arranged in the steam-water inlet pipe, the fine wire mesh plate is made of grid type materials composed of wire type materials, when the diameter of the liquid drops is larger than that of gaps between the wire meshes, the fine wire mesh plate cannot be intercepted by the wire mesh, and for small-diameter liquid drops, due to the fact that the water has certain viscosity and the irregular shape of the liquid drops under high speed, the phenomenon of bridging occurs due to the tension of the water drops when passing through the gaps formed by the wire meshes, the small-mesh plate is intercepted, and the steam-water separation efficiency is further improved;
And thirdly, a rotating shaft below the double-rotor motor drives the third gear to rotate, and a fourth gear meshed with the third gear also starts to rotate. The rotating fixed block below the fourth gear rotates along with the rotating fixed block, so that the cleaning brush is driven to rotate on the filament screen, the structure is beneficial to removing impurities possibly attached to the filament screen, and the smoothness of the steam-water inlet pipe is ensured;
And fourthly, after steam-water separation, steam is discharged through a steam outlet pipe, and a liquid part is left in the main cavity, so that when the liquid in the main cavity is accumulated to a certain degree, the separated water can be discharged through controlling a liquid outlet valve.
Further, an adjusting method of the steam-water separator inside the boiler is added, and in the first step, the operation of the quick connection mechanism is automatically performed through an intelligent sensor and an algorithm. The butt joint condition of the steam-water inlet pipe (3) and the external pipeline (7) is detected by utilizing an image recognition technology, and the positions of the upper arc-shaped fixing plate (63) and the lower arc-shaped fixing plate (64) are automatically adjusted through a machine learning algorithm so as to realize the optimal sealing and connecting effects. This may reduce the complexity of the operation and the need for manual adjustment. The method comprises the following specific steps:
step one, system components and hardware configuration
The intelligent sensor and the camera select an industrial camera with higher resolution ratio, have high frame rate and ensure continuous images which can be captured at high speed.
The distance sensor is a laser distance measuring sensor, has high measurement accuracy requirement and is used for accurately controlling and detecting the distance between the steam-water inlet pipe and the external pipeline.
Pressure sensor-pressure change during connection was monitored and recorded using a pressure sensor with an accuracy of + -0.01 bar to evaluate sealing performance.
Hardware interface-using an industrial computer with high-speed processing capability, equipped with a well-performing GPU to support complex machine learning computations and real-time data processing.
Step two, data collection and pretreatment
Parameters such as video image sequence, distance sensor readings at each stage, pressure sensor readings, and data from at least 1000 connection operations including success and failure cases were recorded during each connection operation and collected at an early stage.
And annotating the video of each operation, including marking the time point of connection success or failure and the associated sensor readings, as well as the correct position of the fixture plate.
Step three, building and training a machine learning model
Defining CNN architecture and parameter ranges:
CNN architecture selection:
infrastructure-a network architecture with a sequence of multi-layer convolutional layer, batch normalization layer, reLU activation layer, max-pooling layer, and two fully-connected layers is selected. Such a structure may ensure sufficient model complexity to capture complex image features.
And the output layer is used for classifying or regressing according to the requirements, and the last layer is used for selecting a softmax function so as to adapt to the requirements of the recognition task.
The parameters include:
learning rate, the speed of updating the model weight is affected.
Batch size-smaller batches may provide more frequent updates, while larger batches may increase memory utilization and computational efficiency.
The number of filters, the feature extraction capacity of the influence model.
The filter size determines the local field of view size for feature extraction.
Initializing whale population:
Population size, number of whales is set, and the position of each whale is a super-parameter configuration.
Random initialization, namely randomly initializing each super parameter within a specified range, and ensuring diversity of the population.
And (3) adaptability evaluation:
Modeling a CNN model is built based on the position (super parameter set) of each whale. The specific construction steps are as follows:
The position X i of each whale represents a specific set of CNN hyper-parameters. These super parameters include:
learning rate (η), batch size (B), number of filters (F n), size of filters (F s)
Then constructing a CNN model according to the super parameter set, optimizing by using the selected learning rate eta and Adam, compiling an Optimizer to prepare for training, wherein the Optimizer is an Optimizer formula:
Optimizer=Adam(η)
and finally training and evaluating, namely training each model by using the marked data set, evaluating the performance of the model on the verification set, and selecting a mean square error as the fitness evaluation.
Updating whale positions:
Surrounding prey strategies (narrowing the search):
Xi,new＝X*-A·|C·X*-Xi|
spiral update strategy (simulating spiral predation behavior of whale):
Xi,new＝|X*-Xi|·eb·l·cos(2πl)+X*
Where b=1 is the screw constant for controlling the tightness of the screw behaviour, a, C is calculated according to the following formula:
A=2a·r-a
C=2q
X i,new is the new position of whale after update;
x i is the position of the ith whale and represents a hyper-parameter set of CNN;
x * is the optimal super-parameter set currently found;
A is a coefficient matrix used for controlling the amplitude of the searching step and influencing the approach degree of whales to the optimal solution or the random direction;
C is another coefficient matrix for calculating the distance between the target whale and the current whale position;
l is a random number in the interval of [ -1,1] and is used in a spiral updating strategy to determine the ascending or descending direction and amplitude of a spiral;
a is a coefficient which linearly decreases along with the iterative process and is used for controlling the value of A to influence the global property and the locality of search;
r and q are random numbers in the interval of [0,1] and are used for dynamically adjusting the values of A and C, so that the randomness and diversity of the searching process are increased;
random or exploratory updates the algorithm decides to explore new areas, whales will randomly move towards or away from the best solution, which helps to jump out of local optima.
Termination conditions steps 3 and 4 are repeated until the maximum number of iterations and fitness are reached and there is no significant improvement over successive generations.
Step four, implementing and automatically adjusting
Design of a control algorithm:
firstly, the position of the arc-shaped fixing plate is precisely controlled by using a stepping motor so as to realize rapid and precise butt joint with an external pipeline.
The implementation mode is as follows:
a closed loop control system is designed which dynamically adjusts the number and direction of steps of the stepper motor based on the predicted data obtained from the model in step three.
This is achieved using a PID (proportional-integral-derivative) controller. The pid controller adjusts the control output based on the deviation (i.e., the difference between the expected position and the actual position).
Wherein:
u (t) is a control input (drive signal of the stepping motor) at time t;
e (t) is the deviation at time t, i.e. the difference between the predicted position and the current position;
e (τ) represents the error or deviation in the past period τ (from 0 to the current time t);
K p、Ki、Kd is the proportional, integral and differential gains of the PID controller respectively;
Real-time feedback control:
and (3) processing real-time data, predicting the position where the arc-shaped fixed plate should be by the machine learning model in real time, and sending the position difference (deviation) to a control system.
Step motor adjustment:
the step motor adjusts the step number and direction of the driving signal u (t) calculated according to the PID algorithm to minimize the position deviation.
The control resolution of the stepper motor determines the accuracy of the adjustment, each step of the stepper motor corresponding to a small adjustment of the position of the fixed plate.
Step five, monitoring and maintaining
User interface developing a Graphical User Interface (GUI) displaying real-time data, operating status, historical trend graphs, and proposed warnings or adjustment suggestions.
And the maintenance interface is used for providing system performance log, error report and maintenance reminding functions.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the invention, through the quick connecting mechanism, the connection between the steam-water inlet pipe and the external pipeline can be realized quickly and conveniently, meanwhile, the traction force of the two groups of spring rods ensures the connection compactness, the phenomenon of liquid leakage and steam leakage is effectively prevented, and the safety and reliability of the system are improved.
2. According to the invention, the cleaning brush is driven to rotate on the filament screen plate by the double-rotor motor, so that impurities possibly attached to the filament screen plate can be automatically removed, the smoothness of the steam-water inlet pipe is maintained, the trouble of manual cleaning is reduced, and the operation efficiency of equipment is improved.
3. According to the invention, the wind field system formed by the fan blades and the double-rotor motor arranged in the steam-water inlet pipe and the shielding cover below the steam-water inlet pipe are used together, so that the steam-water separation efficiency is obviously improved. The wind field generated by the fan blades is favorable for rising of steam and sinking of liquid, and the shielding cover prevents the floating of liquid drops, so that the steam-water separation effect is ensured.
4. Through the application of intelligent control technology, this patent has effectively promoted the degree of automation and the accuracy of soda admission pipe and outside pipeline butt joint operation, has shown the precision and the efficiency that have improved the operation, has reduced the demand and the possible mistake of manual operation. In addition, the overall reliability of the system is improved, and the technical level and market competitiveness are correspondingly enhanced. These implementation details not only optimize the product performance, but also help to highlight the innovations and technical advances thereof in the patent application, bringing obvious economic and technical benefits to users and industries.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic illustration of the structure within the main chamber of the present invention;
FIG. 3 is a schematic view of the steam-water inlet pipe in the present invention;
FIG. 4 is a schematic view showing the structure of a cleaning brush according to the present invention;
FIG. 5 is a schematic view of the structure of a first gear in the present invention;
FIG. 6 is a schematic view of the quick connect mechanism of the present invention;
FIG. 7 is a schematic view of the structure at A in the present invention;
FIG. 8 is a flow chart of the intelligent monitoring and adjusting method of the steam-water separator in the boiler in the invention.
1, A main shell; 2, a main cavity, 3, a steam-water inlet pipe, 4, a steam outlet pipe, 5, a side fixing block, 6, a quick connecting mechanism, 61, a rotating block, 62, a spring rod, 63, an upper arc fixing plate, 64, a lower arc fixing plate, 65, a fixing clamping block, 66, a spring block groove, 67, a poking piece groove, 68, a fixing poking block, 69, a supporting spring, 610, a movable poking piece, 611, a clamping block, 7, an external pipeline, 8, a fan blade, 9, a first gear, 10, a double-rotor motor, 11, a second gear, 12, a third gear, 13, a filament screen plate, 14, a fourth gear, 15, a rotating fixing block, 16, a cleaning brush, 17, a shielding cover and 18, and a liquid outlet valve.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. In the description of the present invention, unless explicitly stated or limited otherwise, the terms "mounted," "connected," and "configured" are to be construed broadly, and may, for example, be fixedly connected, detachably connected, or integrally connected, mechanically connected, electrically connected, directly connected, indirectly connected via an intermediary, or communicate between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art. Hereinafter, an embodiment of the present invention will be described in accordance with its entire structure.
Referring to fig. 1 to 7, in the embodiment of the invention, the steam-water separator in the boiler comprises a main shell 1, wherein a main cavity 2 is arranged in the main shell 1, a steam-water inlet pipe 3 is fixedly connected to the outer side of the main shell 1, a steam outlet pipe 4 is fixedly connected to the outer side of the main shell 1, two groups of side fixing blocks 5 are fixedly connected to the outer sides of the steam-water inlet pipe 3 and the steam outlet pipe 4, a quick connecting mechanism 6 is arranged on the side surface of each side fixing block 5, an external pipeline 7 is arranged on the side surface of each steam-water inlet pipe 3, and a liquid outlet valve 18 is fixedly connected to the lower part of the main shell 1 and used for controlling water separated in the main cavity 2 to be discharged;
The quick connecting mechanism 6 comprises a rotating block 61, the quick connecting mechanism 6 is rotationally connected with the side fixing block 5 through the rotating block 61, a spring rod 62 is fixedly connected to the side face of the rotating block 61, an upper arc-shaped fixing plate 63 is fixedly connected to the movable end of the spring rod 62, a lower arc-shaped fixing plate 64 is rotationally connected to the lower portion of the upper arc-shaped fixing plate 63, a fixing clamping block 65 is fixedly connected to the lower arc-shaped fixing plate 64, a spring block groove 66 is formed in the lower portion of the upper arc-shaped fixing plate 63, a poking piece groove 67 penetrating through the side face of the upper arc-shaped fixing plate 63 is formed in the side face of the spring block groove 66, a fixing spring block 68 is slidably connected to the inside of the spring block groove 66, a supporting spring 69 is fixedly connected to the side face of the fixing spring block 68, a clamping block 611 is fixedly connected to the side face of the fixing spring block 68, the moving poking piece 610 is slidably connected to the inside the poking piece groove 67, one end of the supporting spring 69 is fixedly connected to the fixing spring block 68, a groove formed in the side face of the spring block 66 is matched with the clamping block 65, and the clamping block 65 is wedge-shaped, and the clamping block is convenient to extrude the clamping block 611 into the groove 66.
By adopting the scheme, when the quick connecting mechanism 6 is not used, the lower arc-shaped fixing plate 64 is not fixed with the upper arc-shaped fixing plate 63, when the steam-water inlet pipe 3 is required to be connected with the external pipeline 7, only the upper arc-shaped fixing plate 63 is required to be rotated to be attached to the clamping ring of the external pipeline 7, the lower arc-shaped fixing plate 64 is rotated to be attached to the clamping ring of the external pipeline 7, the clamping block 65 can squeeze the clamping block 611 to enter the elastic block groove 66, the clamping block 611 clamps the groove on the side surface of the clamping block 65 to complete fixation, the traction force of the two groups of spring rods 62 ensures that the steam-water inlet pipe 3 is tightly attached to the external pipeline 7 to prevent leakage of liquid, and when the steam-water inlet pipe 3 is required to be detached, only the shifting piece 610 is required to be shifted to enable the clamping block 611 not to clamp the groove on the side surface of the clamping block 65 any more, and the connection between the steam-water inlet pipe 3 and the external pipeline 7 can be relieved by rotating the lower arc-shaped fixing plate 64.
Referring to fig. 1 and 5, the fan blade 8 is rotatably connected to the side surface of the steam-water inlet pipe 3, the first gear 9 is fixedly connected to the side surface of the fan blade 8, a through hole slightly larger than the diameter of the steam-water inlet pipe 3 is formed in the first gear 9, the double-rotor motor 10 is fixedly connected to the side surface of the steam-water inlet pipe 3, the second gear 11 is fixedly connected to the rotating shaft above the double-rotor motor 10, the third gear 12 is fixedly connected to the rotating shaft below the double-rotor motor 10, the fine wire mesh plate 13 is fixedly connected to the side surface of the steam-water inlet pipe 3 below the third gear 12, the fourth gear 14 is rotatably connected to the side surface of the steam-water inlet pipe 3 above the fine wire mesh plate 13, a through hole slightly larger than the diameter of the steam-water inlet pipe 3 is formed in the fourth gear 14, the rotary fixing block 15 is fixedly connected to the lower portion of the fourth gear 14, the cleaning brush 16 is fixedly connected to the lower portion of the rotary fixing block 15, four groups of the rotary fixing block 15 and the cleaning brush 16 are arranged, the cleaning brush 16 is attached to the fine wire mesh plate 13, the shielding cover 17 is fixedly connected to the lower portion of the steam-water inlet pipe 3, the first gear 9 is meshed with the second gear 11, the fourth gear 12 is meshed with the third gear 12, the fourth gear 14 is meshed with the fourth gear 14, and the small fan blade 17 is meshed with the small liquid is slightly separated from the small cavity 17, and the small liquid is prevented from being sucked by the small liquid, and the small liquid is sucked by the small cavity through the small cavity 17, and the small liquid is prevented from the small liquid drop due to the small liquid drop is sucked.
By adopting the scheme, the double-rotor motor 10 is started, the upper rotating shaft drives the second gear 11 to rotate, the first gear 9 and the fan blades 8 are driven to rotate, wind fields are generated, the lower rotating shaft drives the third gear 12 to rotate, the fourth gear 14 and the rotating fixing block 15 are driven to rotate, the cleaning brush 16 is enabled to rotate on the filament screen 13, impurities possibly attached to the cleaning brush are removed, and the shielding cover 17 prevents liquid drops from being attracted and floating by the wind fields generated by the fan blades 8, so that the steam-water separation effect is ensured.
The application method of the steam-water separator in the boiler comprises the following steps:
Before the steam-water separation process is started, the quick connection mechanism 6 is used for connecting the steam-water inlet pipe 3 and the external pipeline 7, the upper arc-shaped fixing plate 63 is rotated to be attached to the clamping ring of the external pipeline 7, and then the lower arc-shaped fixing plate 64 is rotated to be attached to the clamping ring of the external pipeline 7. In the process, the fixed clamping block 65 can extrude the clamping block 611 to enter the elastic block groove 66, the clamping block 611 clamps the groove on the side surface of the fixed clamping block 65, the quick connection between the steam-water inlet pipe 3 and the external pipeline 7 is realized, the traction force of the two groups of spring rods 62 ensures the close fitting of the steam-water inlet pipe 3 and the external pipeline 7, and the phenomenon of liquid leakage and steam leakage is prevented;
The steam-water mixture is led into the main cavity 2 through the steam-water inlet pipe 3, the steam-water mixture starts a preliminary steam-water separation process, the fan blades 8 arranged on the side surface of the steam-water inlet pipe 3 start to rotate under the drive of the double-rotor motor 10 to generate a wind field, the wind field is helpful for rising steam in the steam-water mixture, the liquid part is sunk under the action of gravity, meanwhile, the shielding cover 17 below the steam-water inlet pipe 3 prevents liquid drops from being attracted and floating by the wind field generated by the fan blades 8, so that the steam-water separation effect is further ensured, the steam-water separation is preliminarily realized, the steam-water inlet pipe 3 is internally provided with a fine wire mesh plate 13 which is composed of wire mesh materials, when the diameter of liquid drops is larger than the gap between wires, the liquid drops cannot be intercepted through the wires, and for small-diameter liquid drops, the phenomenon of 'bridging' occurs due to the self tension when the liquid drops pass through the gap composed of wires, so that the water is intercepted, and the steam-water separation efficiency is further improved;
And step three, the rotating shaft below the double-rotor motor 10 drives the third gear 12 to rotate, and the fourth gear 14 meshed with the third gear 12 also starts to rotate. The rotary fixing block 15 below the fourth gear 14 rotates along with the rotary fixing block, so that the cleaning brush 16 is driven to rotate on the filament screen 13, and the structure is beneficial to removing impurities possibly attached to the filament screen 13 and ensuring the smoothness of the steam-water inlet pipe 3;
And fourthly, after steam-water separation, steam is discharged through the steam outlet pipe 4, and a liquid part is left in the main cavity 2, so that when the liquid in the main cavity 2 is accumulated to a certain degree, the separated water can be discharged through controlling the liquid outlet valve 18.
Further, an adjusting method of the steam-water separator in the boiler is added, and the operation of the quick connection mechanism is automatically performed through the intelligent sensor and the algorithm. In the first step, the operation of the quick connection mechanism is automatically performed through an intelligent sensor and an algorithm. The butt joint condition of the steam-water inlet pipe (3) and the external pipeline (7) is detected by utilizing an image recognition technology, and the positions of the upper arc-shaped fixing plate (63) and the lower arc-shaped fixing plate (64) are automatically adjusted through a machine learning algorithm so as to realize the optimal sealing and connecting effects. This may reduce the complexity of the operation and the need for manual adjustment. The method comprises the following specific steps:
step one, system components and hardware configuration
The intelligent sensor and the camera select industrial cameras with the resolution of 1080p and above and have the frame rate of at least 60fps, so that continuous images with high-speed operation can be captured.
The distance sensor is a laser distance measuring sensor, the measuring precision is +/-0.1 mm, and the distance sensor is used for accurately controlling and detecting the distance between the steam-water inlet pipe and the external pipeline.
Pressure sensor-pressure change during connection was monitored and recorded using a pressure sensor with an accuracy of + -0.01 bar to evaluate sealing performance.
Hardware interface-using an industrial computer with high-speed processing capability, equipped with NVIDIA GPUs to support complex machine learning computations and real-time data processing.
Step two, data collection and pretreatment
Parameters such as video image sequence, distance sensor readings at each stage, pressure sensor readings, and data from at least 1000 connection operations including success and failure cases were recorded during each connection operation and collected at an early stage.
And annotating the video of each operation, including marking the time point of connection success or failure and the associated sensor readings, as well as the correct position of the fixture plate.
Step three, building and training a machine learning model
Defining CNN architecture and parameter ranges:
CNN architecture selection:
infrastructure-a network architecture with a sequence of multi-layer convolutional layer, batch normalization layer, reLU activation layer, max-pooling layer, and two fully-connected layers is selected. Such a structure may ensure sufficient model complexity to capture complex image features.
And the output layer is used for classifying or regressing according to the requirements, and the last layer is used for selecting a softmax function so as to adapt to the requirements of the recognition task.
Parameter ranges:
Learning rate from 0.0001 to 0.01.
Batch size from 16 to 128.
Number of filters the number of filters per convolutional layer is from 32 to 512.
Filter size from 3x3 to 7x7.
Initializing whale population:
population size setting the number of 30 whales, wherein the 'position' of each whale is a super-parameter configuration.
Random initialization, namely randomly initializing each super parameter within a specified range, and ensuring diversity of the population.
And (3) adaptability evaluation:
Modeling a CNN model is built based on the position (super parameter set) of each whale. The specific construction steps are as follows:
The position X i of each whale represents a specific set of CNN hyper-parameters. These super parameters include:
learning rate (η), batch size (B), number of filters (F n), size of filters (F s)
The selection range of each parameter is:
η∈[0.0001,0.01]
B∈[16,128]
Fn∈[32,512]
Fs∈{3×3,5×5,7×7}
Then constructing a CNN model according to the super parameter set, optimizing by using the selected learning rate eta and Adam, compiling an Optimizer to prepare for training, wherein the Optimizer is an Optimizer formula:
Optimizer=Adam(η)
and finally training and evaluating, namely training each model by using the marked data set, evaluating the performance of the model on the verification set, and selecting a mean square error as the fitness evaluation.
Updating whale positions:
Surrounding prey strategies (narrowing the search):
Xi,new＝X*-A·|C·X*-Xi|
spiral update strategy (simulating spiral predation behavior of whale):
Xi,new＝|X*-Xi|·eb·l·cos(2πl)+X*
Where b=1 is the screw constant for controlling the tightness of the screw behaviour, a, C is calculated according to the following formula:
A=2a·r-a
C=2q
X i,new is the new position of whale after update;
x i is the position of the ith whale and represents a hyper-parameter set of CNN;
x * is the optimal super-parameter set currently found;
A is a coefficient matrix used for controlling the amplitude of the searching step and influencing the approach degree of whales to the optimal solution or the random direction;
C is another coefficient matrix for calculating the distance between the target whale and the current whale position;
l is a random number in the interval of [ -1,1] and is used in a spiral updating strategy to determine the ascending or descending direction and amplitude of a spiral;
a is a coefficient which linearly decreases along with the iterative process and is used for controlling the value of A to influence the global property and the locality of search;
r and q are random numbers in the interval of [0,1] and are used for dynamically adjusting the values of A and C, so that the randomness and diversity of the searching process are increased;
random or exploratory updates the algorithm decides to explore new areas, whales will randomly move towards or away from the best solution, which helps to jump out of local optima.
Termination conditions steps 3 and 4 are repeated until a maximum number of iterations of 100 times and a certain fitness is reached and no significant improvement is achieved in successive generations.
Step four, implementing and automatically adjusting
Design of a control algorithm:
firstly, the position of the arc-shaped fixing plate is precisely controlled by using a stepping motor so as to realize rapid and precise butt joint with an external pipeline.
The implementation mode is as follows:
a closed loop control system is designed which dynamically adjusts the number and direction of steps of the stepper motor based on the predicted data obtained from the model in step three.
This is achieved using a PID (proportional-integral-derivative) controller. The PID controller adjusts the control output based on the deviation (i.e., the difference between the desired position and the actual position).
Wherein:
k p、Ki、Kd is set to 0.1, 0.01 and 0.005 respectively
Real-time feedback control:
and (3) processing real-time data, predicting the position where the arc-shaped fixed plate should be by the machine learning model in real time, and sending the position difference (deviation) to a control system.
Step motor adjustment:
the step motor adjusts the step number and direction of the driving signal u (t) calculated according to the PID algorithm to minimize the position deviation.
The control resolution of the stepper motor determines the accuracy of adjustment, and each step of the stepper motor corresponds to the tiny adjustment of the position of the fixed plate, so that the accuracy of not more than 0.1mm is realized.
Step five, monitoring and maintaining
User interface developing a Graphical User Interface (GUI) displaying real-time data, operating status, historical trend graphs, and proposed warnings or adjustment suggestions.
And the maintenance interface is used for providing system performance log, error report and maintenance reminding functions.
The present invention is not limited to the above-mentioned embodiments, and any person skilled in the art, based on the technical solution of the present invention and the inventive concept thereof, can be replaced or changed equally within the scope of the present invention.
Claims (10)
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| US20040083986A1 (en) * | 1994-05-06 | 2004-05-06 | Ashton Augustus J. | Upper bundle steam generator cleaning, inspection, and repair system |
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| CN114207339A (en) * | 2019-06-14 | 2022-03-18 | 瑞士科技创新股份公司 | Pipe joint applicator and joint production method |
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