Rotating speed grading adjusting method based on opening and closing force

Abstract

The invention discloses a rotating speed grading adjustment method based on opening and closing force, and belongs to the technical field of resource reutilization, and the method specifically comprises the steps: 1, obtaining the information of an overall device which comprises a front-end fan, a generator, a rear-end fan and an opening and closing mechanism, and obtaining the application scene information of the front-end fan, setting an allowable rotating speed interval of the front-end fan according to the acquired application scene information; step 2, carrying out acquisition simulation among the opening and closing mechanism, the generator and the front-end fan to obtain a simulation curve; 3, correcting the simulation curve to obtain a correlation curve; 4, grading the rotating speed of the front-end fan based on the obtained correlation curve, and marking a corresponding grading segmentation line in the correlation curve; and 5, the opening and closing force of the opening and closing mechanism is obtained in real time, the obtained opening and closing force is input into the correlation curve, the corresponding rotating speed grade is matched, and operation of the front-end fan is controlled according to the matched rotating speed grade.

Description

Technical Field

[0001] The invention belongs to the technical field of resource recycling, and in particular is a rotation speed graded regulation method based on opening and closing force. Background Art

[0002] In places such as constant temperature and humidity factories, airports, high-speed railway stations or expressway service areas, central air conditioning or central ventilation systems are generally arranged, which require the use of a variety of cooling fans or ventilation fans. During operation, the above fans will discharge gas with a stable flow rate and flow rate. In order to make full use of this gas, a wind power generation device is often installed, such as Figure 2 As shown, in order to further improve the efficiency of resource utilization by recycling resources through wind power generation devices, the present invention proposes a method for adjusting the fan speed in stages according to the opening and closing force of the opening and closing mechanism. Summary of the invention

[0003] In order to solve the problems existing in the above-mentioned solutions, the present invention provides a rotation speed graded adjustment method based on the opening and closing force.

[0004] The purpose of the present invention can be achieved through the following technical solutions:

[0005] A method for adjusting the rotation speed in stages based on the opening and closing force, the specific method comprising:

[0006] Step 1: Obtaining the overall device information, the overall device includes a front-end fan, a generator, a rear-end fan and an opening and closing mechanism, obtaining the front-end fan application scenario information, and setting the allowable speed range of the front-end fan according to the obtained application scenario information;

[0007] Step 2: Perform data acquisition simulation between the opening and closing mechanism, the generator and the front-end fan to obtain a simulation curve;

[0008] Step 3: Correct the simulation curve to obtain the correlation curve;

[0009] Step 4: Classify the rotation speed of the front-end fan based on the obtained correlation curve, and mark the corresponding classification dividing line in the correlation curve;

[0010] Step 5: Obtain the opening and closing force of the opening and closing mechanism in real time, input the obtained opening and closing force into the correlation curve, match the corresponding speed level, and control the operation of the front-end fan according to the matched speed level.

[0011] Furthermore, the method for setting the allowable speed range of the front-end fan according to the acquired application scenario information includes:

[0012] Obtain the ventilation requirements in the application scenario information. According to the obtained ventilation requirements and the corresponding number and positions of the front-end fans, set the ventilation assignment for the corresponding front-end fans, mark the set ventilation assignment as HZ, obtain the device information of the front-end fans, and set the device assignment for the front-end fans according to the obtained front-end fan device information, marked as SZ; calculate the rotational speed positioning value according to the rotational speed positioning value formula, obtain the maximum rotational speed range that the current front-end fan has, and match the corresponding allowable rotational speed range according to the maximum rotational speed range and the rotational speed positioning value.

[0013] Further, the rotational speed positioning value formula is where b1 and b2 are both proportionality coefficients, and the value range is 0 < b1 ≤ 1, 0 < b2 ≤ 1, and α is the influence coefficient of the backend device.

[0014] Further, the method for performing acquisition simulation between the opening and closing mechanism, the generator, and the front-end fans includes:

[0015] Establish a simulation model according to the obtained overall device information. The simulation model is used to perform associated simulation curves based on the input data, obtain the allowable rotational speed range, the generator operation range, and the opening and closing force range of the opening and closing mechanism. Integrate the obtained allowable rotational speed range, the generator operation range, and the opening and closing force range of the opening and closing mechanism into the simulation input data, and input the simulation input data into the simulation model to obtain the corresponding simulation curve.

[0016] Further, the method for correcting the simulation curve includes:

[0017] Obtain the respective ideal states of the opening and closing mechanism, the generator, and the front-end fans during the establishment of the simulation model, and set the corresponding ideal assignments, marked as LXZ, LXF, and LXQ respectively; obtain the respective device states of the current opening and closing mechanism, the generator, and the front-end fans, set the corresponding actual assignments, and marked as SJZ, SJF, and SJQ respectively. According to the correction value formula:

[0018]

[0019] Calculate the correction value, where α1, α2, and α3 are all adjustment coefficients, and the value range is all (0, 1]. Correct the simulation curve according to the calculated correction value to obtain the associated curve.

[0020] Further, the method for grading the rotational speed of the front-end fans based on the obtained associated curve includes:

[0021] Obtain an association curve diagram, identify the association curve profile in the association curve diagram, set the grading restriction conditions of the front-end fan, establish a grading model, integrate the association curve profile and the grading restriction conditions into grading input data, input the grading input data into the grading model, obtain the grading points corresponding to the association curve profile, and mark the obtained grading points in the association curve diagram.

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] By analyzing the current actual overall device information, simulating the corresponding simulation curve, and then adjusting the simulation curve, the speed classification of the front-end fan is completed, and dynamic speed adjustment is achieved according to the opening and closing force of the opening and closing mechanism, so that it is more in line with the power generation efficiency requirements of the generator. At the same time, through speed classification, the speed of the front-end fan can be avoided from being frequently adjusted due to changes in the opening and closing force, which leads to a shortened service life of the front-end fan. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0025] Figure 1 is a flow chart of the method of the present invention;

[0026] Figure 2 This is an example diagram of the overall device of the present invention.

[0027] In the figure: 1. Fan; 2. Generator; 3. Automatic blade opening and closing structure; 4. Transmission parts. DETAILED DESCRIPTION

[0028] The technical solution of the present invention will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] like Figure 1 to Figure 2 As shown, a speed graded adjustment method based on the opening and closing force, the specific method includes:

[0030] Step 1: Obtaining the overall device information, the overall device includes a front-end fan, a generator, a rear-end fan and an opening and closing mechanism, obtaining the front-end fan application scenario information, and setting the allowable speed range of the front-end fan according to the obtained application scenario information;

[0031] The overall device is the information of the entire combined device as shown in Figure 2 , including the model numbers, powers, and other device information of each device. The overall device is an existing mechanism, so it will not be described in detail and can be referred to Figure 2 , but the structure it has can be adjusted.

[0032] The method for setting the allowable speed range of the front-end fan according to the obtained application scenario information includes:

[0033] Obtain the ventilation requirements in the application scenario information, set the ventilation assignment for the corresponding front-end fan according to the obtained ventilation requirements and the corresponding number and position of the front-end fans, mark the set ventilation assignment as HZ, obtain the device information of the front-end fan, including information such as power, efficiency, and usage duration, and set the device assignment of the front-end fan according to the obtained device information of the front-end fan, marked as SZ; according to the rotational speed positioning value formula Calculate the rotational speed positioning value, where b1 and b2 are both proportionality coefficients, and the value range is 0 < b1 ≤ 1, 0 < b2 ≤ 1, and α is the influence coefficient of the rear-end device, that is, the influence coefficient of devices such as generators and rear-end fans on the front-end fan, which is specifically set by the expert group; obtain the maximum speed range that the current front-end fan has, and match the corresponding allowable speed range according to the maximum speed range and the rotational speed positioning value.

[0034] The ventilation requirements in the application scenario information refer to the degree of ventilation requirements that need to be achieved in the current场所. It can be obtained according to the operation requirements of the corresponding场所, or obtained from other aspects.

[0035] Set the ventilation assignment for the corresponding front-end fan according to the obtained ventilation requirements and the corresponding number and position of the front-end fans. First, determine the single ventilation requirement of the corresponding front-end fan according to the number and position of the front-end fans, and then set the corresponding ventilation assignment manually, or first establish a ventilation assignment matching table under different single ventilation requirements and obtain the corresponding ventilation assignment through matching.

[0036] Set the device assignment of the front-end fan according to the obtained device information of the front-end fan. It can be set by establishing a learning model or manually. Among them, the specific process of establishing and training the learning model is common knowledge in this field.

[0037] Match the corresponding allowable speed range according to the maximum speed range and the rotational speed positioning value. The expert group establishes the corresponding rotational speed positioning value matching table, matches the corresponding speed range through the calculated rotational speed positioning value, compares the matched speed range with the maximum speed range, and obtains the intersection range, which is the allowable speed range.

[0038] Step 2: Perform data acquisition simulation between the opening and closing mechanism, the generator and the front-end fan to obtain a simulation curve;

[0039] The method for performing data acquisition simulation between the opening and closing mechanism, the generator and the front-end fan includes:

[0040] A simulation model is established based on the acquired overall device information. The simulation model is used to associate simulation curves according to input data, obtain the allowable speed range, generator operation range, and opening and closing force range of the opening and closing mechanism, and integrate the obtained allowable speed range, generator operation range, and opening and closing force range of the opening and closing mechanism into simulation input data. The simulation input data is input into the simulation model to obtain the corresponding simulation curve.

[0041] The simulation curve includes the relationship between the opening and closing force and the front-end fan speed, and is set as far as possible within the optimal operating range of the generator.

[0042] The method of establishing a simulation model based on the acquired overall device information is established by an expert group based on the overall device information and the corresponding mechanical principles. For example, the front-end fan rotates to drive the generator to generate electricity, thereby changing the opening and closing force of the opening and closing mechanism, and establishing a corresponding simulation model based on mechanical principles and ideal conditions. The specific undisclosed parts are common knowledge in this field, so they are not described in detail.

[0043] The generator operation range and the opening and closing force range of the opening and closing mechanism can be obtained through the overall device information, which is common knowledge in the field.

[0044] Step 3: Correct the simulation curve to obtain the correlation curve;

[0045] Methods for correcting the simulation curve include:

[0046] The ideal states of the opening and closing mechanism, generator and front-end fan during the simulation model establishment process are obtained, and the corresponding ideal values ​​are set, marked as LXZ, LXF and LXQ respectively; the current equipment states of the opening and closing mechanism, generator and front-end fan are obtained, and the corresponding actual values ​​are set, marked as SJZ, SJF and SJQ respectively. According to the correction value formula:

[0047]

[0048] Calculate the correction value, where α1, α2, and α3 are adjustment coefficients, and their value ranges are all (0, 1], which can be optimized by genetic algorithm; modify the simulation curve according to the calculated correction value to obtain the correlation curve.

[0049] Because the simulation model is based on ideal conditions during the simulation process, the corresponding ideal values ​​are set by the expert group during the establishment process.

[0050] The current equipment states of the opening and closing mechanism, generator and front-end fan are obtained, and corresponding actual values ​​are set. The expert group also sets the corresponding actual values ​​by referring to the process of setting ideal values. The specific undisclosed parts are common knowledge in this field.

[0051] The simulation curve is corrected according to the calculated correction value, and a corresponding learning model is established by an expert group. Intelligent correction is performed through the learning model. The specific establishment and training process is common knowledge in this field and will not be described in detail.

[0052] Step 4: Classify the rotation speed of the front-end fan based on the obtained correlation curve, and mark the corresponding classification dividing line in the correlation curve;

[0053] The method for classifying the rotation speed of the front-end fan based on the obtained correlation curve includes:

[0054] Obtain an association curve diagram, identify the association curve profile in the association curve diagram, set the grading restriction conditions of the front-end fan, and set the grading restriction conditions manually, mainly based on the actual device information of the front-end fan; establish a grading model, integrate the association curve profile and the grading restriction conditions into grading input data, input the grading input data into the grading model, obtain the grading points corresponding to the association curve profile, and mark the obtained grading points in the association curve diagram.

[0055] The hierarchical model is established based on a CNN network or a DNN network and is trained by setting a corresponding training set. The corresponding establishment and training process is common knowledge in this field and will not be described in detail.

[0056] Step 5: Obtain the opening and closing force of the opening and closing mechanism in real time, input the obtained opening and closing force into the correlation curve, match the corresponding speed level, and control the operation of the front-end fan according to the matched speed level.

[0057] The above formulas are all calculated by removing dimensions and taking numerical values. The formula is a formula that is closest to the actual situation obtained by collecting a large amount of data and performing software simulation. The preset parameters and preset thresholds in the formula are set by technical personnel in this field according to actual conditions or obtained by simulating a large amount of data.

[0058] The above embodiments are only used to illustrate the technical method of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical method of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical method of the present invention.

Claims

1. A speed graded adjustment method based on opening and closing force, characterized in that: Specific methods include: Step 1: Obtaining the overall device information, the overall device includes a front-end fan, a generator, a rear-end fan and an opening and closing mechanism, obtaining the front-end fan application scenario information, and setting the allowable speed range of the front-end fan according to the obtained application scenario information; Step 2: Perform data acquisition simulation between the opening and closing mechanism, the generator and the front-end fan to obtain a simulation curve; Step 3: Correct the simulation curve to obtain the correlation curve; Step 4: Classify the rotation speed of the front-end fan based on the obtained correlation curve, and mark the corresponding classification dividing line in the correlation curve; Step 5: Obtain the opening and closing force of the opening and closing mechanism in real time, input the obtained opening and closing force into the correlation curve, match the corresponding speed level, and control the operation of the front-end fan according to the matched speed level.

2. The speed graded adjustment method based on the opening and closing force according to claim 1 is characterized in that: The method for setting the allowable speed range of the front-end fan according to the obtained application scenario information includes: Obtain the ventilation requirements in the application scenario information, set the ventilation value of the corresponding front-end fan according to the obtained ventilation requirements and the corresponding number and position of the front-end fans, mark the set ventilation value as HZ, obtain the device information of the front-end fan, set the device value of the front-end fan according to the obtained front-end fan device information, and mark it as SZ; calculate the speed positioning value according to the speed positioning value formula, obtain the maximum speed range of the current front-end fan, and match the corresponding allowable speed range according to the maximum speed range and the speed positioning value.

3. The speed graded adjustment method based on the opening and closing force according to claim 2 is characterized in that: The rotational speed positioning value formula is where b1 and b2 are both proportionality coefficients, and their value ranges are 0 < b1 ≤ 1, 0 < b2 ≤ 1, and α is the influence coefficient of the backend device.

4. The method for adjusting the rotation speed by levels based on the opening and closing force according to claim 1, characterized in that: The method for performing data acquisition simulation between the opening and closing mechanism, the generator and the front-end fan includes: A simulation model is established based on the acquired overall device information. The simulation model is used to associate simulation curves according to input data, obtain the allowable speed range, generator operation range, and opening and closing force range of the opening and closing mechanism, and integrate the obtained allowable speed range, generator operation range, and opening and closing force range of the opening and closing mechanism into simulation input data. The simulation input data is input into the simulation model to obtain the corresponding simulation curve.

5. The method for adjusting the rotation speed by levels based on the opening and closing force according to claim 1, characterized in that: Methods for correcting the simulation curve include: The ideal states of the opening and closing mechanism, generator and front-end fan during the simulation model establishment process are obtained, and the corresponding ideal values ​​are set, marked as LXZ, LXF and LXQ respectively; the current equipment states of the opening and closing mechanism, generator and front-end fan are obtained, and the corresponding actual values ​​are set, marked as SJZ, SJF and SJQ respectively. According to the correction value formula: Calculate the correction value, where α1, α2, and α3 are adjustment coefficients, and their value ranges are all (0, 1]. Correct the simulation curve according to the calculated correction value to obtain the correlation curve.

6. The method for adjusting the rotation speed by levels based on the opening and closing force according to claim 1, characterized in that: The method for classifying the rotation speed of the front-end fan based on the obtained correlation curve includes: Obtain an association curve diagram, identify the association curve profile in the association curve diagram, set the grading restriction conditions of the front-end fan, establish a grading model, integrate the association curve profile and the grading restriction conditions into grading input data, input the grading input data into the grading model, obtain the grading points corresponding to the association curve profile, and mark the obtained grading points in the association curve diagram.

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