CN215830405U - Comfortable intelligent outdoor sun-shading system based on photo-thermal coupling - Google Patents
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Abstract
The utility model relates to an outdoor sunshade field, specificly relate to a comfortable intelligent outdoor sunshade system based on light and heat coupling. The utility model discloses a comfortable intelligent outdoor sun-shading system based on photo-thermal coupling, which comprises a sun-shading adjusting system and an electric outer sun-shading shutter; the electric external sun-shading shutter is positioned outside the room; the sunshade adjusting system comprises a building information module, and an environment and personnel parameter memory setting module is connected with the building information module; the monitoring module is connected with the environment and personnel parameter memory setting module; the environment and personnel parameter memory setting module is connected with the monitoring module; the monitoring module is connected with the data processing module; the memory storage module is connected with the data processing module, and the data processing module is connected with the control module; a control module of the sun-shading adjusting system is connected with the electric outer sun-shading shutter; the comprehensive grading is utilized to judge the comfort of indoor light and heat environments and the influence of different louver angles on energy consumption, and the heat comfort of a human body is fully considered.
Description
Technical Field
The utility model relates to an outdoor sunshade field, specificly relate to a comfortable intelligent outdoor sunshade system based on light and heat coupling.
Background
At present, glass curtain walls are mostly adopted in public buildings, good lighting effects in rooms can be guaranteed due to large window-wall ratios of the glass curtain walls, meanwhile, more sunlight enters the rooms, indoor photo-thermal environments are affected, photo-thermal comfort and building energy consumption of personnel are further affected, and therefore in actual engineering, the energy consumption is reduced and the photo-thermal environments are improved by means of louver shading.
There are two common shutter shading modes at present: the inner louver sunshade and the outer louver sunshade are characterized in that the effective rate of blocking solar radiation by the inner louver sunshade is often lower than that of the outer louver sunshade, and a heat island effect is easily formed between the louvers and glass, so that heat is diffused indoors, solar radiation cannot be blocked from entering indoors from the source, the indoor radiant quantity is reduced, and compared with the outer louver sunshade, the capacity of improving the photo-thermal environment is limited.
After the outer shutter is adopted for shading, the indoor light and heat environment and the comprehensive energy consumption of a room lighting and air conditioning system can be simultaneously influenced. Taking summer as an example, when sunlight is blocked from entering the room, the cold load is reduced, lighting is also affected, lighting equipment may need to be started, and lighting energy consumption is increased. In winter, more sunlight is expected to enter the room, the heat load is reduced, and the lighting effect can be improved. Moreover, the glare is avoided no matter in winter or summer, and the thermal comfort of the human body is considered; in the prior art, a sun-shading system which is intelligently adjusted according to the comfort level of a human body is not fully considered.
SUMMERY OF THE UTILITY MODEL
Aiming at the defects of the prior technical scheme, the utility model aims to provide a comfortable intelligent outdoor sun-shading system based on photo-thermal coupling, which ensures the thermal comfort of indoor personnel and ensures that the energy consumption of the illumination energy consumption air conditioner of a room meets the standard after the photo-thermal coupling factor is combined.
To achieve the above object, one or more embodiments of the present invention provide the following solutions:
the utility model discloses a comfortable intelligent outdoor sun-shading system based on photo-thermal coupling, which comprises a sun-shading adjusting system and an electric outer sun-shading shutter; the electric external sun-shading shutter is positioned outside the room; the sunshade adjusting system comprises a building information module, and an environment and personnel parameter memory setting module is connected with the building information module; the monitoring module is connected with the environment and personnel parameter memory setting module; the environment and personnel parameter memory setting module is connected with the monitoring module; the monitoring module is connected with the data processing module; the memory storage module is connected with the data processing module, and the data processing module is connected with the control module; a control module of the sun-shading adjusting system is connected with the electric outer sun-shading shutter;
as a further technical scheme, the electric outer sun-shading shutter is connected with a driving controller;
as a further technical solution, the building information input module is used for inputting building information, and the related building information includes: the height, orientation, external wall and external window type of the building, the orientation, area and height of the input control room, the orientation, number and size of the windows, the type and structural size of the external sun-shading shutter.
As a further technical solution, the environment and personnel parameter memory setting module inputs related parameters including: summer air conditioner design temperature, running time, personnel number, working time, activity level, and clothing thermal resistance under different dressing conditions.
As a further technical scheme, the environment and personnel parameter memory setting module has a memory function, and the recommended value is memorized or the parameters are reset the next day.
As a further technical scheme, the building information input module transmits the input building related information and the input related information of the environment and personnel parameter memory setting module to the monitoring module.
As a further technical scheme, the monitoring module comprises a thermal environment monitoring and analyzing module, an air conditioner load forecasting module and a light environment monitoring and analyzing module;
as a further technical scheme, the thermal environment monitoring and analyzing module is used for monitoring the air temperature, the air flow rate, the wall surface temperature, the relative humidity and the intensity of solar radiation entering a room, combining input building information, dynamically analyzing the change of solar faculae in the room by adopting ecotect software, dividing the coverage range of a direct-radiation area and a non-direct-radiation area in the room, and calculating the average radiation temperature of different indoor places; and the average heat sensation PMV voting is calculated through air temperature, wall surface temperature and thermal resistance parameter prediction of personnel clothes.
As a further technical scheme, the thermal environment monitoring and analyzing module adopts a thermometer and a solar radiation recorder.
As a further technical scheme, the air conditioner load prediction module calculates real-time air conditioner cold and heat loads by adopting DEST thermal environment simulation software according to the intensity of solar radiation entering a room and the indoor temperature.
As a further technical scheme, the light environment monitoring and analyzing module monitors the indoor space illumination and calculates the glare value of personnel.
As a further technical scheme, the luminous environment monitoring and analyzing module adopts an illuminometer.
As a further technical scheme, the data processing module scores the light environment index, the heat environment index and the comprehensive energy consumption index of the data processed by the monitoring module respectively, then carries out comprehensive scoring on the three indexes, and obtains the outer shading time-by-time control strategy through the highest scoring in each time period.
As a further technical scheme, the light environment index scoring standard scores according to the illumination and glare values; scoring according to the thermal sensation PMV predicted value by using the thermal environment index scoring standard; and scoring according to the lighting energy consumption and the air conditioner energy consumption by the comprehensive energy consumption index scoring standard.
As a further technical scheme, the memory storage module stores and feeds back the time-by-time control strategy obtained by data processing of the data processing module, and the light environment monitoring and analyzing module and the thermal environment monitoring and analyzing module analyze and evaluate the strategy again to see whether the conditions of human body light-heat comfort, energy conservation and the like are met.
As a further technical solution, the memory storage module is further configured to memorize and store the obtained control strategy, and provide a simulation comparison of data for the control of the next year.
As a further technical scheme, the control module comprises a timing control module, a time-by-time control module and a manual control module; the timing control module is used for automatically closing each electric sun-shading shutter when the room is at night; the time-by-time control module adjusts the external louver sun-shading angle time by time according to the control strategy obtained by the timing control module; the manual control module is used for manually adjusting when the angle is controlled to meet the requirements of personnel within a period of time.
As a further technical scheme, the thermal environment monitoring and analyzing module of the monitoring module is used for dynamically analyzing the change of solar faculae in a room by monitoring the air temperature, the air flow rate, the wall surface temperature, the relative humidity and the intensity of solar radiation entering the room according to input building information and by adopting ecotect software, dividing the coverage range of a direct-radiation area and a non-direct-radiation area in the room and calculating the average radiation temperature of different indoor places; and the average heat sensation PMV voting is calculated through air temperature, wall surface temperature and thermal resistance parameter prediction of personnel clothes.
As a further technical scheme, an environment monitoring and analyzing module of the monitoring module monitors the illumination of the indoor space and calculates the glare value of personnel.
As a further technical scheme, an air conditioner load prediction module of the monitoring module calculates real-time air conditioner cold and heat loads by adopting DEST thermal environment simulation software according to the intensity of solar radiation entering a room and the indoor temperature.
The beneficial effects of one or more technical schemes are as follows:
the utility model provides a comfortable intelligent outdoor sun-shading system based on photo-thermal coupling, which judges the comfort of indoor light and heat environments and the influence of different louver angles on energy consumption by utilizing comprehensive grading, realizes the heat comfort of human bodies, ensures the heat comfort of indoor personnel and ensures that the energy consumption of illumination energy consumption air conditioners in rooms meets the standard.
Drawings
The utility model is further illustrated with reference to the following figures and examples.
FIG. 1 is a block diagram of an automatic outdoor sunshade system based on photo-thermal coupling thermal comfort and energy saving of the present invention;
FIG. 2 is a flow chart of the photo-thermal coupling based thermal comfort energy-saving automatic outdoor sunshade system of the present invention;
FIG. 3 is a diagram showing changes in the value of glare of a person in a west room of an office building in Qingdao city according to the present invention;
FIG. 4 is a diagram showing the variation of PMV of a person in the west room of an office building in Qingdao city;
FIG. 5 is a diagram illustrating the comprehensive energy consumption variation in the west-oriented room of an office building in Qingdao city according to the present invention;
in the figure, the system comprises a building information module 1, a building information module 2, an environment and personnel parameter memory setting module 3, a monitoring module 4, a data processing module 5, a memory storage module 6 and a control module.
Detailed Description
Example 1
Referring to fig. 1-5, the utility model discloses a comfortable intelligent outdoor sun-shading system based on photo-thermal coupling, as shown in fig. 1, the comfortable intelligent outdoor sun-shading system based on photo-thermal coupling comprises a sun-shading adjusting system and an electric outer sun-shading shutter; the electric external sun-shading shutter is positioned outside the room; the driving controller is used for driving each electric external sunshade louver.
The sunshade adjusting system comprises a building information module, and an environment and personnel parameter memory setting module is connected with the building information module; the monitoring module is connected with the environment and personnel parameter memory setting module; the environment and personnel parameter memory setting module is connected with the monitoring module; the monitoring module is connected with the data processing module; the memory storage module is connected with the data processing module, and the data processing module is connected with the control module; and a control module of the sun-shading adjusting system is connected with the electric outer sun-shading shutter and is used for controlling the electric outer sun-shading shutter.
The building information module is used for inputting relevant information of a target building, including the height, the overall orientation, the external wall and external window type area of the building, and also inputting the orientation, the area, the height, the window orientation quantity and size of a control room, and the required shutter type and structure size.
The building information module is connected with the environment and personnel parameter memory setting module, and the data of the building information module, the environment and personnel parameter memory setting module are uploaded to the monitoring module together for monitoring and analysis.
The environment and personnel parameter memory setting module is used for presetting environment and personnel parameters in advance, and the environment and personnel parameters specifically comprise summer air conditioner design temperature, running time, personnel number, working time, activity level and clothing thermal resistance under different dressing conditions. Moreover, the environment and personnel parameter memory setting module has a memory function, and the recommended value is memorized or the parameter is reset the next day
And the data of the building information module and the environment and personnel parameter memory setting module are uploaded to the monitoring module to analyze the thermal environment, the luminous environment and the comprehensive energy consumption. Specifically, the monitoring module is divided into: the system comprises a thermal environment monitoring and analyzing module, a light environment monitoring and analyzing module and an air conditioner load predicting module, wherein the thermal environment monitoring and analyzing module, the light environment monitoring and analyzing module and the air conditioner load predicting module are used for respectively analyzing the thermal environment, the light environment and the comprehensive energy consumption; specifically, the method comprises the following steps:
the thermal environment monitoring and analyzing module adopts a thermometer instrument and a solar radiation recorder. The thermal environment monitoring and analyzing module is used for monitoring the air temperature, the air flow rate, the wall surface temperature and the relative humidity of a room and the intensity of solar radiation entering the room, combining the input building information, adopting ecotect software to dynamically analyze the change of solar faculae in the room, dividing the coverage range of a direct-incidence area and a non-direct-incidence area in the room and calculating the average radiation temperature of different indoor places; and the average heat sensation PMV voting is calculated through air temperature, wall surface temperature and thermal resistance parameter prediction of personnel clothes.
The luminous environment monitoring and analyzing module adopts an illuminometer. The luminous environment monitoring and analyzing module monitors the indoor space illumination and calculates the glare value of personnel.
The air conditioner load prediction module calculates real-time air conditioner cold and heat loads by adopting DEST thermal environment simulation software according to the intensity of solar radiation entering a room and the indoor temperature.
After the photo-thermal environment is monitored and analyzed, data are transmitted to the data processing module to begin to be processed, the data processing module scores the light environment index, the thermal environment index and the comprehensive energy consumption index of the data processed by the monitoring module respectively, the three indexes are scored comprehensively, and the external sunshade time-by-time control strategy is obtained through the highest scoring of each time period. The method is carried out in two parts: the first part is that the lighting energy consumption and the air conditioning energy consumption of room personnel are calculated, then the scoring is carried out according to the energy consumption index evaluation standard, and meanwhile, the personnel glare value and the heat sensation voting obtained in the monitoring process are scored according to the corresponding DGI and PMV scoring standards; and the second part is to standardize the obtained scores, calculate the information entropy of each index, convert the information entropy into the weight of each index, finally substitute the scores of the three indexes into a formula 6 to obtain the comprehensive score of each working condition room, and select the highest score angle of each time period as the time-by-time outer shutter control angle in the summarized score standard.
The thermal environment monitoring and analyzing module of the monitoring module is used for monitoring the air temperature, the air flow rate, the wall surface temperature, the relative humidity and the indoor solar radiation intensity of a room, combining the input building information, dynamically analyzing the solar facula change in the room by adopting ecotect software, dividing the coverage range of a direct-incidence area and a non-direct-incidence area in the room and calculating the average radiation temperature of different indoor places; and the average heat sensation PMV voting is calculated through air temperature, wall surface temperature and thermal resistance parameter prediction of personnel clothes.
And an environment monitoring and analyzing module of the monitoring module monitors the indoor space illumination and calculates the glare value of personnel.
An air conditioner load prediction module of the monitoring module calculates real-time air conditioner cold and heat loads by adopting DEST thermal environment simulation software according to the intensity of solar radiation entering a room and the indoor temperature.
The specific grading standards of the luminous environment index, the thermal environment index and the comprehensive energy consumption index in the data processing module are respectively as follows:
(1) grading standard of luminous environment evaluation index
According to GB 50033-2013 building lighting design Standard, the evaluation criteria of Discomfort Glare Index (DGI) are shown in the following table:
evaluation criteria for glare index
The evaluation index of the indoor light environment is the discomfort glare index DGI. When the DGI is set to be less than or equal to 16, the indoor light environment comfort is excellent; the comfort is good when the temperature is 16-18 hours; the comfort is moderate when the temperature is 18-20 hours; the comfort is poor when the temperature is 20-22 hours; comfort was unacceptable with a DGI > 22. The excellent, good, medium, poor, unacceptable, respectively, of comfort correspond to a score of 100/75/50/25/0, as shown in the following figure.
Score criteria corresponding to DGI
(2) Grading standard of thermal environment evaluation index
The method combines the specification of indoor PMV in British standard BS EN ISO 7730-2016 (Standard of building Hot and humid Environment) and Chinese standard GB 50019-2015 Industrial building heating, ventilating and air Conditioning design Specification), divides the corresponding score of PMV into five grades, and the grade is-0.2 < PMV < +0.2, and the thermal comfort is excellent; PMV is more than or equal to-0.5 and less than or equal to-0.2, PMV is more than or equal to +0.2 and less than or equal to +0.5, and the thermal comfort is good; -0.7< PMV < -0.5 and +0.5< PMV < +0.7, thermal comfort is medium; PMV is more than or equal to-1 and less than or equal to-0.7, PMV is more than or equal to +0.7 and less than or equal to +1, and thermal comfort is poor; -3< PMV < -1 and +1< PMV < +3, thermal comfort is unacceptable. The excellent, good, medium, poor, unacceptable, respectively, of comfort correspond to a score of 100/75/50/25/0, as shown in the following figure.
PMV corresponding scoring criteria
(3) Grading standard of energy consumption evaluation index
The scores of the energy consumption are obtained by comparing energy consumption data obtained by actual simulation, the score is 0 when the energy consumption is the maximum, and the score is 100 when the energy consumption is the minimum, as shown in the following chart:
grading standard corresponding to energy consumption
And then carrying out standardization treatment on the scores obtained by the indexes:
then calculating the information entropy e of each indexj：
Where the constant k is related to the number of samples m, the entropy is the largest for a system with absolutely disordered information, where e is 1, and
from the above formula, one can obtain:
this gives:
| k＝(lnm)-1，0≤e≤1 | 3 |
value of information utility hjWith an information entropy value ejThe relationship of (1) is:
| hj＝1- |
4 |
and obtaining the weight of each index after the information utility values are relatively changed:
i.e. w1、w2、w3The weights of the three indexes of luminous environment, thermal environment and energy consumption are represented respectively.
The composite score is:
| Z＝xi1·w2+xi2·w2+xi3· |
6 |
and then the scores of the three indexes are respectively substituted into a formula 6 to obtain the comprehensive score of the room under each working condition. And judging the comfort of indoor light and heat environments and the influence of different louver angles on energy consumption by utilizing comprehensive grading. Finally, a scoring summary table under different sun-shading angles is obtained, and the angle with the highest score in each time period is selected as the control angle of the sun-shading of the blinds outside each time period.
And after the data is processed, the corresponding control strategy is memorized and stored to provide data simulation comparison for the control of the next year. The memory storage module stores and feeds back the time-by-time control strategy obtained by data processing of the data processing module, and module analysis and evaluation such as luminous environment, thermal environment and the like are carried out in the data module again to see whether the conditions of human body light and heat comfort, energy conservation and the like are met.
After the data processing module finishes processing, the control strategy is used for controlling the external sun-shading shutters through the control module, timing control, time-by-time control and manual control modes can be adopted, wherein the timing control is to automatically close each electric sun-shading shutter when a room is at night, the time-by-time control is to adjust the sun-shading angles of the external sun-shading shutters time-by-time according to the obtained control angle strategy, and the manual control is to adjust the sun-shading angles manually if the control angles do not meet the comfortable demands of people for a period of time.
The working principle is as follows: building information is input into a building information module, wherein the building information comprises the height, the orientation, the type of an outer wall and an outer window of a building, the orientation, the area and the height of a control room, the orientation, the number and the size of windows, the type and the structural size of an outer sun-shading louver; presetting environment and personnel parameters in an environment and personnel parameter memory setting module in advance, wherein the environment and personnel parameters specifically comprise summer air conditioner design temperature, running time, personnel number, working time, activity level and clothing thermal resistance under different dressing conditions; analyzing the thermal environment, the luminous environment and the comprehensive energy consumption through the thermal environment monitoring and analyzing module, the luminous environment monitoring and analyzing module and the air conditioner load predicting module of the monitoring module according to the input building information, environment and personnel parameters; the data processing module scores the thermal environment index, the luminous environment index and the comprehensive energy consumption index according to the analysis data of the thermal environment, the luminous environment and the comprehensive energy consumption obtained by the monitoring module, and then comprehensively scores the three indexes, and the external sunshade time-by-time control strategy is obtained through the highest score in each time period. Storing the processed corresponding control strategy through a memory storage module, and providing a simulated comparison of data for the control of the next year; the memory storage module stores and feeds back the time-by-time control strategy obtained by data processing of the data processing module, and whether the conditions of human body light-heat comfort, energy conservation and the like are met or not is judged through module analysis and evaluation of light environment, heat environment and the like. The data processing module outputs the obtained control strategy to the control module, and the control module realizes the control of the external sun-shading shutter; the control module respectively performs timing control, time-by-time control and manual control on the external sun-shading shutter through the timing control module, the time-by-time control module and the manual control module; the timing control module is used for automatically closing each electric sun-shading shutter when the room is at night; the time-by-time control module adjusts the external louver sun-shading angle time by time according to the control strategy obtained by the timing control module; the manual control module is used for manually adjusting when the angle is controlled to meet the requirements of personnel within a period of time.
Example 2
The photo-thermal coupling based comfortable and intelligent outdoor sun-shading system is applied to the case illustration in the specific practical engineering.
The engineering implementation time is 12 days to 28 days in 6 months in summer, the actual place is a west-oriented room of a certain office building in Qingdao city, the size of the office is 24.8 multiplied by 8.6 multiplied by 3.9m, the west direction is a glass curtain wall, and the north, south and east-oriented walls are inner walls.
The summer running time of the air conditioner is 9:00 to 17:00, the specific design temperature is 26 ℃, the working time of workers is 9:00 to 17:00, and the specific clothing thermal resistance is 0.5 clo.
The thermal environment, the luminous environment and the comprehensive energy consumption scoring are respectively carried out in the monitoring process, and the change of the glare value of the monitoring personnel by using the illuminometer is shown in figure 3. The calculated heat sensing voting changes according to the thermal environment parameters and the thermal resistance prediction of the personnel clothes are shown in figure 4. The comprehensive energy consumption and energy consumption changes of the room in the data calculation process are shown in fig. 5.
The corresponding summer west room composite energy consumption index scores are given in the following table:
the luminous environment index score is given in the following table:
the thermal environment index score is given in the following table:
the optimal control strategy obtained by comprehensive scoring is that the scoring summary results of the positions close to the window under different outer louver sun-shading angles in summer are as follows:
| Time | highest scoring angle | Scoring |
| 10：00 | 120° | 80.13 |
| 11：00 | 150° | 84.29 |
| 12：00 | 150° | 83.36 |
| 13：00 | 30° | 85.58 |
| 14：00 | 60° | 79.78 |
| 15：00 | 90° | 61.15 |
| 16：00 | 90° | 53.71 |
| 17：00 | 30° | 32.71 |
The highest score of each time period can be obtained, and the sun shading control of the louver angle outside summer is as follows: 9: 00-10: 00 at 120 degrees; 10: 00-11: 00, 150 degrees; 11: 00-12: 00 at 150 degrees; 12: 00-13: 00, 30 °; 13: 00-14: 00, 60 °; 14: 00-15: 00, 60 degrees; 15: 00-16: 00, 90 degrees; 16: 00-17: 00, 30 degrees.
In light of the foregoing description of the preferred embodiment of the present invention, it is to be understood that numerous changes and modifications may be made by those skilled in the art without departing from the spirit and scope of the utility model. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.
Claims (9)
1. A comfortable intelligent outdoor sun-shading system based on photo-thermal coupling is characterized by comprising a sun-shading adjusting system and an electric outer sun-shading shutter; the sunshade adjusting system comprises a building information module, and an environment and personnel parameter memory setting module is connected with the building information module; the monitoring module is connected with the environment and personnel parameter memory setting module; the environment and personnel parameter memory setting module is connected with the monitoring module; the monitoring module is connected with the data processing module; the memory storage module is connected with the data processing module, and the data processing module is connected with the control module; and a control module of the sun-shading adjusting system is connected with the electric outer sun-shading shutter.
2. A comfortable intelligent outdoor sunshade system based on photothermal coupling as claimed in claim 1, wherein the electric outer sunshade louver is connected with the driving controller.
3. A photo-thermal coupling based intelligent outdoor sunshade system according to claim 1, wherein the electric external sunshade louver is located outside the room.
4. The intelligent outdoor sunshade system based on photothermal coupling comfort as claimed in claim 1, wherein the building information input module transmits the inputted building related information and the inputted related information of the environment and personnel parameter memory setting module to the monitoring module.
5. A photothermal coupling based intelligent outdoor sunshade system according to claim 1, wherein said monitoring module comprises a thermal environment monitoring and analyzing module, an air conditioning load predicting module and a light environment monitoring and analyzing module.
6. A comfortable and intelligent outdoor sunshade system based on photothermal coupling according to claim 5, characterized in that the thermal environment monitoring and analyzing module adopts thermometer and solar radiation recorder.
7. A comfortable intelligent outdoor sunshade system based on photothermal coupling according to claim 5, characterized in that the luminous environment monitoring and analyzing module uses illuminometer.
8. A comfortable intelligent outdoor sunshade system based on photo-thermal coupling as claimed in claim 5, characterized in that the control module comprises a timing control module, a time-by-time control module and a manual control module.
9. The intelligent outdoor sunshade system based on photothermal coupling comfort is characterized in that the data processing module scores the light environment index, the heat environment index and the comprehensive energy consumption index of the data processed by the monitoring module respectively, and then comprehensively scores the three indexes, and the exterior sunshade time-by-time control strategy is obtained through the highest score of each time period.
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