A method and device for correcting flow coefficient of control valve

Abstract

The present invention relates to the field of flow control technology, and specifically discloses a method and device for correcting the flow coefficient of a control valve, including: performing data processing on all temperature data of a typical room in a building in a preset time period before the current moment to obtain all temperature processing values; obtaining the indoor heat load of a typical room in the building and the predicted flow of the building based on the temperature processing value of the outdoor temperature data; controlling the flow control valve based on the predicted flow of the building to obtain the indoor adjustment temperature, and obtaining the flow judgment result based on the indoor adjustment temperature, and obtaining the standard training sample based on the flow judgment result; updating the flow control model based on a preset number of standard training samples to obtain the predicted control valve flow coefficient. The present invention can complete the adjustment of the flow control valve according to the indoor adjustment temperature, the temperature processing value of the water supply temperature data, and the temperature processing value of the return water temperature data, thereby improving the heating effect of the building.

Description

Technical Field

[0001] The present invention relates to the technical field of flow control, and in particular to a method and a device for correcting a flow coefficient of a control valve. Background Art

[0002] At present, the development of related technologies for correcting the flow coefficient of control valves is mainly due to the pursuit of efficiency and comfort of heating systems. In building heating, traditional manual gate valves or manual stop valves are widely used in heating systems, but manual control can lead to unbalanced heating problems, and insufficient manual control accuracy leads to poor heating effects. Nowadays, automatic adjustment and high-precision adjustment of the flow coefficient of control valves in building heating have become the most concerned issues for enterprises and residents.

[0003] However, there is currently no method for adjusting the flow control valve according to the indoor temperature adjustment, the temperature processing value of the water supply temperature data, and the temperature processing value of the return water temperature data to improve the heating effect of the building.

[0004] Therefore, the present invention proposes a method and a device for correcting a flow coefficient of a control valve. Summary of the invention

[0005] The present invention provides a method and device for correcting a control valve flow coefficient, which are used to obtain the indoor heat load of a typical room in a building according to a temperature processing value of outdoor temperature data, so as to facilitate the subsequent acquisition of a predicted flow rate of the building, and obtain the predicted flow rate of the building according to the indoor heat load of the typical room in the building, accurately obtain the water supply flow rate that needs to be supplied to the indoor pipe by a boiler room or other heating facilities through a heating pipe within a unit time, so as to facilitate the subsequent acquisition of an indoor adjustment temperature, accurately control the flow control valve according to the predicted flow rate of the building, obtain the indoor adjustment temperature, obtain standard training samples according to the indoor adjustment temperature, accurately obtain the training samples required to ensure that the trained flow control model has high output accuracy, update the flow control model according to a preset number of standard training samples, obtain the predicted control valve flow coefficient, and complete the adjustment of the flow control valve according to the indoor adjustment temperature, the temperature processing value of the water supply temperature data, and the temperature processing value of the return water temperature data, thereby improving the heating effect of the building.

[0006] The present invention provides a method for correcting a flow coefficient of a control valve, comprising:

[0007] S1: Obtain all temperature data of typical rooms in the building in a preset time period before the current moment, and process all temperature data to obtain all temperature processing values;

[0008] S2: Obtain the indoor heat load of a typical room in the building based on the temperature processing value of the outdoor temperature data, and obtain the predicted flow rate of the building based on the indoor heat load of the typical room in the building;

[0009] S3: Control the flow control valve based on the predicted flow of the building to obtain the indoor adjustment temperature, obtain the flow judgment result based on the indoor adjustment temperature, and obtain a standard training sample based on the flow judgment result;

[0010] S4: The flow control model is updated based on a preset number of standard training samples to obtain a predicted control valve flow coefficient.

[0011] Preferably, the method for correcting the flow coefficient of the control valve is as follows: S1: obtaining all temperature data of typical rooms in the building in a preset time period before the current moment, and performing data processing on all temperature data to obtain all temperature processing values, including:

[0012] Obtain all temperature data of typical rooms in the building in a preset time period before the current moment, where all temperature data include outdoor temperature data, indoor temperature data, water supply temperature data, and return water temperature data;

[0013] The preset time period is sampled uniformly according to the preset sampling number to obtain all sampling moments, obtain all temperature values ​​at all sampling moments, and obtain all temperature processing values ​​based on all temperature values ​​at all sampling moments.

[0014] Preferably, the method for correcting the flow coefficient of the control valve, based on all temperature values ​​at all sampling moments, obtains all temperature processing values, including:

[0015] The difference between the maximum value and the minimum value of each temperature data at all sampling moments and the quotient of the preset sampling number are used as the reference temperature difference of the temperature data of the corresponding type, and it is determined whether there is a temperature value of each temperature data at all sampling moments whose difference with the temperature value at the adjacent sampling moments is greater than the reference temperature difference. If so, the mean of the temperature data of the corresponding type of temperature data at all sampling moments is used as the temperature processing value of the temperature data of the corresponding type; otherwise, the temperature value of the temperature data of the corresponding type at the current moment is used as the temperature processing value of the temperature data of the corresponding type;

[0016] Among them, all temperature processing values ​​include: temperature processing values ​​of outdoor temperature data, temperature processing values ​​of indoor temperature data, temperature processing values ​​of water supply temperature data, and temperature processing values ​​of return water temperature data.

[0017] Preferably, the method for correcting the flow coefficient of the control valve, S2: obtaining the indoor heat load of a typical room in the building based on the temperature processing value of the outdoor temperature data, and obtaining the predicted flow of the building based on the indoor heat load of the typical room in the building, including:

[0018] The sum of the outdoor temperature values ​​at all sampling moments and the quotient of the preset number of samples are taken as the outdoor average temperature;

[0019] Based on the temperature processing value of the outdoor temperature data and the outdoor average temperature, the indoor heat load of the typical room in the building is obtained, and the instantaneous detection heat of the flow heat detection device at the current moment is obtained, and it is determined whether the difference between the instantaneous detection heat of the flow heat detection device at the current moment and the indoor heat load of the typical room in the building is greater than a preset difference. If the difference is greater than the preset difference, the operating parameters of the heating system are adjusted;

[0020] If the difference is not greater than the preset difference, the predicted flow rate of the building is obtained based on the indoor heat load of the typical room in the building, the temperature processing value of the water supply temperature data and the temperature processing value of the return water temperature data.

[0021] Preferably, the method for correcting the flow coefficient of the control valve, based on the temperature processing value of the outdoor temperature data and the outdoor average temperature, obtains the indoor heat load of a typical room in the building, including:

[0022] Obtain the heat consumption index, indoor basic temperature, indoor design temperature and indoor area of ​​a typical room in the building, and based on the heat consumption index, indoor basic temperature, indoor design temperature, indoor area of ​​a typical room in the building, temperature processing value of outdoor temperature data and outdoor average temperature, obtain the indoor heat load of a typical room in the building, that is;

[0023]

[0024] Among them, Q np is the indoor heat load of a typical room in a building, and Q np The unit is KW, δ is the heat consumption index, and the unit of δ is W / m 2 , S is the indoor area of ​​a typical room in the building, and the unit of S is m 2 , t0 is the indoor design temperature, t n is the indoor basic temperature, t p is the average outdoor temperature, t wn The temperature processing value for the outdoor temperature data.

[0025] Preferably, the method for correcting the flow coefficient of the control valve is to obtain the predicted flow of the building based on the indoor heat load of a typical room in the building, the temperature processing value of the water supply temperature data, and the temperature processing value of the return water temperature data, including:

[0026]

[0027] Where, m is the predicted flow rate of the building, and the unit of m is kg / s, Q np is the indoor heat load of a typical room in a building, K is the specific heat capacity of water, t gis the temperature processing value of the water supply temperature data, t h It is the temperature processing value of return water temperature data.

[0028] Preferably, the method for correcting the flow coefficient of the control valve, S3: controlling the flow control valve based on the predicted flow of the building, obtaining the indoor adjustment temperature, and obtaining the flow judgment result based on the indoor adjustment temperature, and obtaining the standard training sample based on the flow judgment result, including:

[0029] The flow rate of the flow control valve at the current moment is adjusted to be consistent with the predicted flow rate of the building, and the indoor temperature value of the typical room in the building is monitored in real time after the adjustment. When the indoor temperature value remains stable, the stable indoor temperature value is used as the indoor adjustment temperature;

[0030] A flow determination result is obtained based on the indoor adjusted temperature, and a standard training sample is obtained based on the flow determination result.

[0031] Preferably, the method for correcting the flow coefficient of the control valve, obtaining a flow determination result based on the indoor temperature adjustment, and obtaining a standard training sample based on the flow determination result, comprises:

[0032] Determine whether the indoor adjusted temperature is within the preset indoor comfortable temperature range. If so, use the corresponding indoor adjusted temperature, the temperature processing value of the water supply temperature data, the temperature processing value of the return water temperature data and the building predicted flow as standard training samples, and continue to determine new standard training samples based on all the latest collected temperature data of typical rooms in the building in the preset time period before the current moment, until the preset number of standard training samples is reached, and the preset number of standard training samples is obtained.

[0033] Preferably, the method for correcting the flow coefficient of the control valve, S4: updating the flow control model based on a preset number of standard training samples to obtain a predicted control valve flow coefficient, comprises:

[0034] The indoor adjustment temperature, the temperature processing value of the water supply temperature data, and the temperature processing value of the return water temperature data of each standard training sample are used as model inputs, and the building predicted flow corresponding to the standard training sample is used as model output to train the flow control model until a preset number of standard training samples have been trained to obtain a flow control model;

[0035] Set up a flow control model to obtain the predicted flow of the building, and use the predicted flow of the building as the flow coefficient of the predictive control valve;

[0036] The instantaneous detection flow of the flow heat detection device at the latest moment is obtained, and the flow of the flow control valve at the latest moment is adjusted to make the instantaneous detection flow of the flow heat detection device at the latest moment consistent with the predicted control valve flow coefficient.

[0037] The present invention provides a device for correcting a flow coefficient of a control valve, which is used to execute any one of the methods for correcting a flow coefficient of a control valve in embodiments 1 to 9, comprising:

[0038] The data processing module is used to obtain all temperature data of typical rooms in the building in a preset time period before the current moment, and to process all temperature data to obtain all temperature processing values;

[0039] A calculation module, used to obtain the indoor heat load of a typical room in the building based on the temperature processing value of the outdoor temperature data, and to obtain the predicted flow rate of the building based on the indoor heat load of the typical room in the building;

[0040] A judgment module is used to control the flow control valve based on the predicted flow of the building, obtain the indoor adjustment temperature, obtain the flow judgment result based on the indoor adjustment temperature, and obtain a standard training sample based on the flow judgment result;

[0041] The training module is used to update the flow control model based on a preset number of standard training samples to obtain a predicted control valve flow coefficient.

[0042] The beneficial effects of the present invention compared with the prior art are as follows: the indoor heat load of a typical room in a building is obtained according to the temperature processing value of outdoor temperature data, which is convenient for the subsequent acquisition of the predicted flow rate of the building, and the predicted flow rate of the building is obtained according to the indoor heat load of the typical room in the building, and the water supply flow rate that needs to be supplied by the boiler room or other heating facilities through the heating pipe within a unit time is accurately obtained, which is convenient for the subsequent acquisition of the indoor adjustment temperature, and the flow control valve is accurately controlled according to the predicted flow rate of the building to obtain the indoor adjustment temperature, and standard training samples are obtained according to the indoor adjustment temperature, and the training samples required to ensure that the trained flow control model has high output accuracy are accurately obtained, and the flow control model is updated according to a preset number of standard training samples to obtain the predictive control valve flow coefficient, and the flow control valve can be adjusted according to the indoor adjustment temperature, the temperature processing value of the water supply temperature data, and the temperature processing value of the return water temperature data, thereby improving the heating effect of the building.

[0043] Other features and advantages of the present invention will be described in the following description, and partly become apparent from the description, or be understood by practicing the present invention. The purpose and other advantages of the present invention can be realized and obtained by the structure specifically pointed out in the written application document.

[0044] The technical solution of the present invention is further described in detail below through the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0046] Figure 1 A flow chart of a method for correcting a flow coefficient of a control valve in an embodiment of the present invention;

[0047] Figure 2 The figure is a schematic diagram of a device for correcting a flow coefficient of a control valve in an embodiment of the present invention. DETAILED DESCRIPTION

[0048] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0049] Embodiment 1:

[0050] The present invention provides a method for correcting the flow coefficient of a control valve, referring to Figure 1 ,include:

[0051] S1: Obtain all temperature data of typical rooms in the building in a preset time period before the current moment, and process all temperature data to obtain all temperature processing values;

[0052] S2: Obtain the indoor heat load of a typical room in the building based on the temperature processing value of the outdoor temperature data, and obtain the predicted flow rate of the building based on the indoor heat load of the typical room in the building;

[0053] S3: Control the flow control valve based on the predicted flow of the building to obtain the indoor adjustment temperature, obtain the flow judgment result based on the indoor adjustment temperature, and obtain a standard training sample based on the flow judgment result;

[0054] S4: The flow control model is updated based on a preset number of standard training samples to obtain a predicted control valve flow coefficient.

[0055] In this embodiment, the typical living room of a building is a living room that is manually pre-selected and is located in the center of the building.

[0056] In this embodiment, the preset time period is a time period preset to obtain all temperature data of typical rooms in a building, for example, 10 minutes.

[0057] In this embodiment, the data processing is a process of obtaining all temperature processing values ​​based on all temperature data of typical rooms in the building in a preset time period before the current moment.

[0058] In this embodiment, the outdoor temperature data is the ambient temperature data outside a typical room in a building.

[0059] In this embodiment, the indoor heat load of a typical room in a building is the heat power that needs to be supplied to the typical room in the building by the boiler room or other heating facilities per unit time in order to make the indoor temperature reach the indoor design temperature from the indoor basic temperature under the condition of the temperature processing value of the outdoor temperature data.

[0060] In this embodiment, the predicted flow rate of the building is the water supply flow rate that needs to be supplied to the indoor pipes by the boiler room or other heating facilities through the heating pipes within unit time based on the indoor heat load of the typical living rooms in the building, the temperature processing value of the water supply temperature data, and the temperature processing value of the return water temperature data.

[0061] In this embodiment, the flow control valve is a control valve for controlling the water flow rate in the heating pipeline.

[0062] In this embodiment, the indoor adjusted temperature is the temperature at which the indoor temperature value of a typical room in the building remains stable (the temperature value remains unchanged within one minute) after the adjustment when the flow of the flow control valve at the current moment is adjusted to be consistent with the predicted flow of the building.

[0063] In this embodiment, the flow judgment result is a judgment result of whether the predicted flow of the corresponding building can be used as a standard training sample by judging whether the indoor adjustment temperature is within a preset indoor comfortable temperature range.

[0064] In this embodiment, the standard training samples are training samples required to ensure that the trained flow control model has high output accuracy.

[0065] In this embodiment, the flow control model is based on the indoor adjusted temperature of each standard training sample, the temperature processing value of the water supply temperature data, and the temperature processing value of the return water temperature data as the model input, and the building predicted flow of the corresponding standard training sample is used as the model output to train the flow control model until a preset number of standard training samples have been trained. The flow control model obtained is input with the indoor adjusted temperature, the temperature processing value of the water supply temperature data, and the temperature processing value of the return water temperature data into the flow control model, and the flow control model can output the building predicted flow.

[0066] In this embodiment, the predictive control valve flow coefficient is the building predicted flow output by the flow control model.

[0067] The beneficial effects of the above technology are: the indoor heat load of a typical room in a building is obtained according to the temperature processing value of the outdoor temperature data, which is convenient for the subsequent acquisition of the predicted flow of the building, and the predicted flow of the building is obtained according to the indoor heat load of the typical room in the building, and the water supply flow that needs to be supplied to the indoor pipe by the boiler room or other heating facilities through the heating pipe in unit time is accurately obtained, which is convenient for the subsequent acquisition of the indoor adjustment temperature, and the flow control valve is accurately controlled according to the predicted flow of the building to obtain the indoor adjustment temperature, and standard training samples are obtained according to the indoor adjustment temperature, and the training samples required to ensure that the trained flow control model has high output accuracy are accurately obtained, and the flow control model is updated according to a preset number of standard training samples to obtain the predictive control valve flow coefficient, and the flow control valve can be adjusted according to the indoor adjustment temperature, the temperature processing value of the water supply temperature data, and the temperature processing value of the return water temperature data, thereby improving the heating effect of the building.

[0068] Embodiment 2:

[0069] Based on Example 1, a method for correcting the flow coefficient of a control valve is provided. S1: obtaining all temperature data of typical rooms in a building in a preset time period before the current moment, and performing data processing on all temperature data to obtain all temperature processing values, including:

[0070] Obtain all temperature data of typical rooms in the building in a preset time period before the current moment, where all temperature data include outdoor temperature data, indoor temperature data, water supply temperature data, and return water temperature data;

[0071] The preset time period is sampled uniformly according to the preset sampling number to obtain all sampling moments, obtain all temperature values ​​at all sampling moments, and obtain all temperature processing values ​​based on all temperature values ​​at all sampling moments.

[0072] In this embodiment, the indoor temperature data is the ambient temperature data of a typical room in a building.

[0073] In this embodiment, the water supply temperature data is the water temperature data supplied by the heating pipe to the indoor pipe.

[0074] In this embodiment, the return water temperature data is the water temperature data in the return water pipe of the building.

[0075] In this embodiment, the preset number of samples is a number preset to perform uniform sampling (time intervals between adjacent sampling moments are consistent) for a preset time period.

[0076] The beneficial effects of the above technology are: clarifying the specific parameter items of all temperature data of typical rooms in the building in the preset time period before the current moment, performing data processing on all temperature data, and obtaining all temperature processing values, which is convenient for the subsequent calculation of the indoor heat load of typical rooms in the building.

[0077] Embodiment 3:

[0078] Based on Example 2, the method for correcting the flow coefficient of the control valve, based on all temperature values ​​at all sampling moments, obtains all temperature processing values, including:

[0079] The difference between the maximum value and the minimum value of each temperature data at all sampling moments and the quotient of the preset sampling number are used as the reference temperature difference of the temperature data of the corresponding type, and it is determined whether there is a temperature value of each temperature data at all sampling moments whose difference with the temperature value at the adjacent sampling moments is greater than the reference temperature difference. If so, the mean of the temperature data of the corresponding type of temperature data at all sampling moments is used as the temperature processing value of the temperature data of the corresponding type; otherwise, the temperature value of the temperature data of the corresponding type at the current moment is used as the temperature processing value of the temperature data of the corresponding type;

[0080] Among them, all temperature processing values ​​include: temperature processing values ​​of outdoor temperature data, temperature processing values ​​of indoor temperature data, temperature processing values ​​of water supply temperature data, and temperature processing values ​​of return water temperature data.

[0081] The beneficial effects of the above technology are: a method for obtaining all temperature processing values ​​based on all temperature values ​​at all sampling moments is given in detail, which is convenient for the subsequent calculation of indoor heat loads of typical rooms in the building.

[0082] Embodiment 4:

[0083] Based on Example 1, a method for correcting a control valve flow coefficient, S2: obtaining an indoor heat load of a typical room in a building based on a temperature processing value of outdoor temperature data, and obtaining a predicted flow rate of the building based on the indoor heat load of the typical room in the building, comprising:

[0084] The sum of the outdoor temperature values ​​at all sampling moments and the quotient of the preset number of samples are taken as the outdoor average temperature;

[0085] Based on the temperature processing value of the outdoor temperature data and the outdoor average temperature, the indoor heat load of the typical room in the building is obtained, and the instantaneous detection heat of the flow heat detection device at the current moment is obtained, and it is determined whether the difference between the instantaneous detection heat of the flow heat detection device at the current moment and the indoor heat load of the typical room in the building is greater than a preset difference. If the difference is greater than the preset difference, the operating parameters of the heating system are adjusted;

[0086] If the difference is not greater than the preset difference, the predicted flow rate of the building is obtained based on the indoor heat load of the typical room in the building, the temperature processing value of the water supply temperature data and the temperature processing value of the return water temperature data.

[0087] In this embodiment, the flow heat detection device is a device that can collect instantaneous heat consumption and water supply flow in a building, and the flow heat detection device includes a heat consumption detection meter and a flow detection meter.

[0088] In this embodiment, the instantaneous detected heat of the flow heat detection device is the heat consumption of the entire building per unit time collected by the flow heat detection device.

[0089] In this embodiment, the preset difference value is a difference value preset in order to accurately obtain a subsequent processing process.

[0090] In this embodiment, the operating parameters of the heating system are the main parameters that affect the operating effect of the heating system when heating the building, such as boiler power, heating pressure, etc.

[0091] The beneficial effects of the above technology are: accurately obtaining the indoor heat load of a typical room in a building based on the temperature processing value of the outdoor temperature data and the average outdoor temperature, which is convenient for obtaining the subsequent predicted flow of the building, and obtaining the predicted flow of the building based on the indoor heat load of the typical room in the building, and accurately obtaining the water supply flow that needs to be supplied to the indoor pipes by the boiler room or other heating facilities through the heating pipes within unit time, which is convenient for obtaining the subsequent indoor temperature adjustment.

[0092] Embodiment 5:

[0093] Based on Example 1, the method for correcting the flow coefficient of the control valve is to obtain the indoor heat load of a typical room in the building based on the temperature processing value of the outdoor temperature data and the outdoor average temperature, including:

[0094] Obtain the heat consumption index, indoor basic temperature, indoor design temperature and indoor area of ​​a typical room in the building, and based on the heat consumption index, indoor basic temperature, indoor design temperature, indoor area of ​​a typical room in the building, temperature processing value of outdoor temperature data and outdoor average temperature, obtain the indoor heat load of a typical room in the building, that is;

[0095]

[0096] Among them, Q np is the indoor heat load of a typical room in a building, and Q np The unit is KW, δ is the heat consumption index, and the unit of δ is W / m 2 , S is the indoor area of ​​a typical room in the building, and the unit of S is m 2 , t0 is the indoor design temperature, t n is the indoor basic temperature, t p is the average outdoor temperature, t wn The temperature processing value for the outdoor temperature data.

[0097] In this embodiment, the indoor design temperature is a target value of the house heating temperature pre-designed by the heating company.

[0098] In this embodiment, the indoor basic temperature is the lowest temperature that can be maintained in a typical room of a building when there is no heating.

[0099] The beneficial effects of the above technology are: a method for accurately obtaining the indoor heat load of a typical room in a building based on the temperature processing value of the outdoor temperature data and the outdoor average temperature is given in detail, which is convenient for obtaining the subsequent predicted flow of the building.

[0100] Embodiment 6:

[0101] On the basis of Example 4, a method for correcting the flow coefficient of the control valve is used to obtain the predicted flow of the building based on the indoor heat load of a typical room in the building, the temperature processing value of the supply temperature data, and the temperature processing value of the return temperature data, including:

[0102]

[0103] Where, m is the predicted flow rate of the building, and the unit of m is kg / s, Q np is the indoor heat load of a typical room in a building, K is the specific heat capacity of water, t g is the temperature processing value of the water supply temperature data, t h It is the temperature processing value of return water temperature data.

[0104] The beneficial effects of the above technology are: it gives in detail a method for obtaining the predicted flow of a building based on the indoor heat load of a typical room in the building, and accurately obtains the water supply flow that needs to be supplied to the indoor pipes by the boiler room or other heating facilities through the heating pipes per unit time, which is convenient for the subsequent acquisition of indoor temperature adjustment.

[0105] Embodiment 7:

[0106] Based on Example 1, a method for correcting a flow coefficient of a control valve, S3: controlling a flow control valve based on a predicted flow of a building, obtaining an indoor adjustment temperature, and obtaining a flow judgment result based on the indoor adjustment temperature, and obtaining a standard training sample based on the flow judgment result, including:

[0107] The flow rate of the flow control valve at the current moment is adjusted to be consistent with the predicted flow rate of the building, and the indoor temperature value of the typical room in the building is monitored in real time after the adjustment. When the indoor temperature value remains stable, the stable indoor temperature value is used as the indoor adjustment temperature;

[0108] A flow determination result is obtained based on the indoor adjusted temperature, and a standard training sample is obtained based on the flow determination result.

[0109] The beneficial effects of the above technology are: accurately controlling the flow control valve according to the predicted flow of the building, obtaining the indoor adjusted temperature, and obtaining standard training samples based on the indoor adjusted temperature, accurately obtaining the training samples required to ensure that the trained flow control model has high output accuracy.

[0110] Embodiment 8:

[0111] Based on Example 7, the method for correcting the flow coefficient of the control valve, obtaining a flow determination result based on the indoor temperature adjustment, and obtaining a standard training sample based on the flow determination result, includes:

[0112] Determine whether the indoor adjusted temperature is within the preset indoor comfortable temperature range. If so, use the corresponding indoor adjusted temperature, the temperature processing value of the water supply temperature data, the temperature processing value of the return water temperature data and the building predicted flow as standard training samples, and continue to determine new standard training samples based on all the latest collected temperature data of typical rooms in the building in the preset time period before the current moment, until the preset number of standard training samples is reached, and the preset number of standard training samples is obtained.

[0113] In this embodiment, the preset indoor comfortable temperature range is the preset user indoor comfortable temperature. In this embodiment, the user indoor comfortable temperature is set to 21 to 22 degrees.

[0114] In this embodiment, the preset number is the number of standard training samples collected, which is preset to keep the output accuracy of the flow control model above a certain standard, for example, 500.

[0115] The beneficial effects of the above technology are: a method for obtaining standard training samples according to the indoor temperature adjustment is given in detail, which is convenient for the subsequent training of the flow control model.

[0116] Embodiment 9:

[0117] Based on Example 1, the method for correcting the flow coefficient of the control valve, S4: updating the flow control model based on a preset number of standard training samples to obtain a predicted control valve flow coefficient, includes:

[0118] The indoor adjustment temperature, the temperature processing value of the water supply temperature data, and the temperature processing value of the return water temperature data of each standard training sample are used as model inputs, and the building predicted flow corresponding to the standard training sample is used as model output to train the flow control model until a preset number of standard training samples have been trained to obtain a flow control model;

[0119] Set up a flow control model to obtain the predicted flow of the building, and use the predicted flow of the building as the flow coefficient of the predictive control valve;

[0120] The instantaneous detection flow of the flow heat detection device at the latest moment is obtained, and the flow of the flow control valve at the latest moment is adjusted to make the instantaneous detection flow of the flow heat detection device at the latest moment consistent with the predicted control valve flow coefficient.

[0121] In this embodiment, the instantaneous detection flow of the flow heat detection device is the instantaneous flow data collected by the flow heat detection device, which can represent the instantaneous flow of the pipeline where the flow control valve (controls water supply) of the building is located.

[0122] The beneficial effects of the above technology are: the flow control model is updated according to a preset number of standard training samples to obtain the predictive control valve flow coefficient, and the flow control valve can be self-adjusted according to the indoor adjustment temperature, the temperature processing value of the water supply temperature data, and the temperature processing value of the return water temperature data, thereby improving the heating efficiency of the building.

[0123] Embodiment 10:

[0124] The present invention provides a device for correcting a flow coefficient of a control valve, which is used to execute any one of the methods for correcting a flow coefficient of a control valve in embodiments 1 to 9, comprising:

[0125] The data processing module is used to obtain all temperature data of typical rooms in the building in a preset time period before the current moment, and to process all temperature data to obtain all temperature processing values;

[0126] A calculation module, used to obtain the indoor heat load of a typical room in the building based on the temperature processing value of the outdoor temperature data, and to obtain the predicted flow rate of the building based on the indoor heat load of the typical room in the building;

[0127] A judgment module is used to control the flow control valve based on the predicted flow of the building, obtain the indoor adjustment temperature, obtain the flow judgment result based on the indoor adjustment temperature, and obtain a standard training sample based on the flow judgment result;

[0128] The training module is used to update the flow control model based on a preset number of standard training samples to obtain a predicted control valve flow coefficient.

[0129] The beneficial effects of the above technology are: the indoor heat load of a typical room in a building is obtained according to the temperature processing value of the outdoor temperature data, which is convenient for the subsequent acquisition of the predicted flow of the building, and the predicted flow of the building is obtained according to the indoor heat load of the typical room in the building, and the water supply flow that needs to be supplied to the indoor pipe by the boiler room or other heating facilities through the heating pipe in unit time is accurately obtained, which is convenient for the subsequent acquisition of the indoor adjustment temperature, and the flow control valve is accurately controlled according to the predicted flow of the building to obtain the indoor adjustment temperature, and standard training samples are obtained according to the indoor adjustment temperature, and the training samples required to ensure that the trained flow control model has high output accuracy are accurately obtained, and the flow control model is updated according to a preset number of standard training samples to obtain the predictive control valve flow coefficient, and the flow control valve can be adjusted according to the indoor adjustment temperature, the temperature processing value of the water supply temperature data, and the temperature processing value of the return water temperature data, thereby improving the heating effect of the building.

[0130] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A method for correcting a flow coefficient of a control valve, characterized in that: include: S1: Obtain all temperature data of typical rooms in the building in a preset time period before the current moment, and process all temperature data to obtain all temperature processing values; S2: Obtain the indoor heat load of a typical room in the building based on the temperature processing value of the outdoor temperature data, and obtain the predicted flow rate of the building based on the indoor heat load of the typical room in the building; S3: Control the flow control valve based on the predicted flow of the building to obtain the indoor adjustment temperature, obtain the flow judgment result based on the indoor adjustment temperature, and obtain a standard training sample based on the flow judgment result; S4: updating the flow control model based on a preset number of standard training samples to obtain a predicted control valve flow coefficient; Among them, the indoor heat load of a typical room in a building is obtained based on the temperature processing value of the outdoor temperature data and the outdoor average temperature, including: Obtain the heat consumption index, indoor basic temperature, indoor design temperature and indoor area of ​​a typical room in the building, and based on the heat consumption index, indoor basic temperature, indoor design temperature, indoor area of ​​a typical room in the building, temperature processing value of outdoor temperature data and outdoor average temperature, obtain the indoor heat load of a typical room in the building, that is; Among them, Q np is the indoor heat load of a typical room in a building, and Q np The unit is KW, δ is the heat consumption index, and the unit of δ is W / m2, S is the indoor area of ​​a typical room in the building, and the unit of S is m2, t0 is the indoor design temperature, t n is the indoor basic temperature, t p is the average outdoor temperature, t wn Temperature processing value for outdoor temperature data; Among them, S3: controlling the flow control valve based on the predicted flow of the building to obtain the indoor adjustment temperature, and obtaining the flow judgment result based on the indoor adjustment temperature, and obtaining the standard training sample based on the flow judgment result, including: The flow rate of the flow control valve at the current moment is adjusted to be consistent with the predicted flow rate of the building, and the indoor temperature value of the typical room in the building is monitored in real time after the adjustment. When the indoor temperature value remains stable, the stable indoor temperature value is used as the indoor adjustment temperature; Obtain flow determination results based on the indoor temperature adjustment, and obtain standard training samples based on the flow determination results; Wherein, the flow judgment result is obtained based on the indoor temperature adjustment, and the standard training sample is obtained based on the flow judgment result, including: Determine whether the indoor adjustment temperature is within the preset indoor comfort temperature range. If so, use the corresponding indoor adjustment temperature, the temperature processing value of the water supply temperature data, the temperature processing value of the return water temperature data and the building prediction flow as standard training samples, and continue to determine new standard training samples based on all the temperature data of the typical rooms in the building in the preset time period before the current moment, until the obtained standard training samples reach the preset number, and obtain the preset number of standard training samples; Wherein, S4: updating the flow control model based on a preset number of standard training samples to obtain a predicted control valve flow coefficient, including: The indoor adjustment temperature, the temperature processing value of the water supply temperature data, and the temperature processing value of the return water temperature data of each standard training sample are used as model inputs, and the building predicted flow corresponding to the standard training sample is used as model output to train the flow control model until a preset number of standard training samples have been trained to obtain a flow control model; Set up a flow control model to obtain the predicted flow of the building, and use the predicted flow of the building as the flow coefficient of the predictive control valve; The instantaneous detection flow of the flow heat detection device at the latest moment is obtained, and the flow of the flow control valve at the latest moment is adjusted to make the instantaneous detection flow of the flow heat detection device at the latest moment consistent with the predicted control valve flow coefficient.

2. A method for correcting a flow coefficient of a control valve according to claim 1, characterized in that: S1: Obtain all temperature data of typical rooms in the building in a preset time period before the current moment, and process all temperature data to obtain all temperature processing values, including: Obtain all temperature data of typical rooms in the building in a preset time period before the current moment, where all temperature data include outdoor temperature data, indoor temperature data, water supply temperature data, and return water temperature data; The preset time period is sampled uniformly according to the preset sampling number to obtain all sampling moments, obtain all temperature values ​​at all sampling moments, and obtain all temperature processing values ​​based on all temperature values ​​at all sampling moments.

3. A method for correcting a flow coefficient of a control valve according to claim 2, characterized in that: Obtain all temperature processing values ​​based on all temperature values ​​at all sampling moments, including: The difference between the maximum value and the minimum value of each temperature data at all sampling moments and the quotient of the preset sampling number are used as the reference temperature difference of the temperature data of the corresponding type, and it is determined whether there is a temperature value of each temperature data at all sampling moments whose difference with the temperature value at the adjacent sampling moments is greater than the reference temperature difference. If so, the mean of the temperature data of the corresponding type of temperature data at all sampling moments is used as the temperature processing value of the temperature data of the corresponding type; otherwise, the temperature value of the temperature data of the corresponding type at the current moment is used as the temperature processing value of the temperature data of the corresponding type; Among them, all temperature processing values ​​include: temperature processing values ​​of outdoor temperature data, temperature processing values ​​of indoor temperature data, temperature processing values ​​of water supply temperature data, and temperature processing values ​​of return water temperature data.

4. A method for correcting a flow coefficient of a control valve according to claim 1, characterized in that: S2: Based on the temperature processing value of the outdoor temperature data, the indoor heat load of the typical room in the building is obtained, and based on the indoor heat load of the typical room in the building, the predicted flow of the building is obtained, including: The sum of the outdoor temperature values ​​at all sampling moments and the quotient of the preset number of samples are taken as the outdoor average temperature; Based on the temperature processing value of the outdoor temperature data and the outdoor average temperature, the indoor heat load of the typical room in the building is obtained, and the instantaneous detection heat of the flow heat detection device at the current moment is obtained, and it is determined whether the difference between the instantaneous detection heat of the flow heat detection device at the current moment and the indoor heat load of the typical room in the building is greater than a preset difference. If the difference is greater than the preset difference, the operating parameters of the heating system are adjusted; If the difference is not greater than the preset difference, the predicted flow rate of the building is obtained based on the indoor heat load of the typical room in the building, the temperature processing value of the water supply temperature data and the temperature processing value of the return water temperature data.

5. A method for correcting a flow coefficient of a control valve according to claim 4, characterized in that: The predicted flow of the building is obtained based on the indoor heat load of the typical rooms in the building, the temperature processing value of the water supply temperature data, and the temperature processing value of the return water temperature data, including: Where, m is the predicted flow rate of the building, and the unit of m is kg / s, Q np is the indoor heat load of a typical room in a building, K is the specific heat capacity of water, t g is the temperature processing value of the water supply temperature data, t h It is the temperature processing value of return water temperature data.

6. A device for correcting a flow coefficient of a control valve, characterized in that: The method for correcting a flow coefficient of a control valve according to any one of claims 1 to 5 comprises: The data processing module is used to obtain all temperature data of typical rooms in the building in a preset time period before the current moment, and to process all temperature data to obtain all temperature processing values; A calculation module, used to obtain the indoor heat load of a typical room in the building based on the temperature processing value of the outdoor temperature data, and to obtain the predicted flow rate of the building based on the indoor heat load of the typical room in the building; A judgment module is used to control the flow control valve based on the predicted flow of the building, obtain the indoor adjustment temperature, obtain the flow judgment result based on the indoor adjustment temperature, and obtain a standard training sample based on the flow judgment result; The training module is used to update the flow control model based on a preset number of standard training samples to obtain a predicted control valve flow coefficient.

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