An air conditioning system based on radiation temperature control

Abstract

The application discloses a kind of air conditioning system based on radiation temperature control, belong to high-efficiency energy-saving technical field, comprising: temperature controller, for adjusting the temperature of building indoor, the working mode of the temperature controller includes refrigeration mode and heating mode;Variable temperature adjustable metal ceiling radiation heat exchange plate is used to adjust the cold and hot radiation of building indoor, to ensure that the cold and hot radiation of building indoor is balanced.The present application detects the temperature change of inner and outer wall to determine the temperature difference of inner and outer radiation, and automatically adjusts the temperature of variable temperature adjustable metal ceiling radiation heat exchange plate according to the indoor temperature and humidity, so that the indoor temperature is balanced, and a more comfortable indoor environment is obtained, so that the human body obtains the comfort of natural constant temperature, and the flow rate of air is formed by active pushing of convection system, so that heat exchange is obtained, so that the human body in the room is not easy to feel hot and cold or overcooling and overheating.

Description

Technical Field

[0001] This invention belongs to the field of high-efficiency energy-saving technology, and specifically relates to an air conditioning system based on radiation temperature control. Background Technology

[0002] For modern standardized building project design, in addition to artistic appearance and safe and reasonable building structure design, there is also a large amount of indoor electromechanical design, and comfortable and energy-saving air conditioning is an essential functional configuration for public buildings and homes. Air conditioning has developed for nearly a century, and the mainstream form is now mainly convection (cooling / heating), such as: VAV centralized all-air system, VRV refrigerant multi-split air system, AHU+FCU decentralized fan coil (air handling unit) air system, split unit (one-to-one) air conditioner, etc., all of which use active air circulation convection heat exchange to meet the comfort temperature requirements by cooling and heating the air.

[0003] However, in actual use, uneven heating and cooling between indoors and outdoors leads to different radiant temperatures between the two sides of the building. This causes people inside the building to experience sudden changes in temperature or become too hot or too cold, resulting in discomfort. In addition, existing air conditioning and fresh air systems generally actively adjust the ventilation power, but due to the entry and exit of people and other factors, the air quality may deteriorate for a period of time. The original adjusted ventilation power is insufficient to replace the stale air. The longer this happens, the more stale air accumulates, which can also cause discomfort for people inside the building. Summary of the Invention

[0004] The purpose of this invention is to provide an air conditioning system based on radiation temperature control to solve the problems encountered in the background art.

[0005] The objective of this invention can be achieved through the following technical solutions: An air conditioning system based on radiant temperature control, the system comprising: A thermostat, used to regulate the temperature inside a building, the thermostat having operating modes including a cooling mode and a heating mode; A temperature-adjustable metal ceiling radiant heat exchanger is used to regulate the heat and cold radiation inside a building to ensure a balanced heat and cold radiation inside the building. The data acquisition module is used to collect relevant indoor and outdoor parameter information of the building; The analysis module is used to analyze and judge the collected parameter information, thereby controlling the commands. The control module adjusts the temperature-adjustable metal ceiling radiant heat exchange plate according to the acquired control instructions.

[0006] Furthermore, the variable temperature adjustable metal ceiling radiant heat exchange plate is equipped with a hot and cold circuit, and each hot and cold circuit is equipped with an electrically controlled valve for control. The hot and cold circuit is connected to an external hot and cold box, and the variable temperature adjustable metal ceiling radiant heat exchange plate is equipped with a temperature sensor for detecting the surface temperature of the heat exchange plate.

[0007] Furthermore, the parameter information includes the building's indoor and outdoor temperatures, indoor humidity, and indoor C. Concentration values ​​and the number of people indoors in the building.

[0008] Furthermore, the analysis method of the analysis module is as follows: In cooling mode, obtain the outdoor temperature. and indoor temperature outdoor temperature With indoor temperature Comparison: when When the indoor temperature is below 10 degrees Celsius, it indicates that the room is not affected by heat radiation, and no control command is generated at this time. when When this occurs, it indicates that the room is affected by thermal radiation, and a control command is generated at this time; In heating mode, the outdoor temperature H is obtained. and indoor temperature outdoor temperature With indoor temperature Comparison: when When the indoor environment is unaffected by cold radiation, no control command is generated. when When this occurs, it indicates that the room is affected by cold radiation, and a control command is generated at this time.

[0009] Furthermore, the method for generating the control command is as follows: Obtain the indoor humidity value R and the number of people N in the building; In cooling mode, open the cold circuit valve inside the temperature-adjustable metal ceiling radiant heat exchanger, and use the formula... *β Adjust the temperature of the temperature-adjustable metal ceiling radiant heat exchanger to... ; In heating mode, open the heat circuit valve inside the temperature-adjustable metal ceiling radiant heat exchanger, and use the formula... *β Adjust the temperature of the temperature-adjustable metal ceiling radiant heat exchanger to... ; Where CR is the standard humidity value in cooling mode, HR is the standard humidity value in heating mode, S is the area of ​​the building's interior, CW is the standard per capita area in cooling mode, and HW is the standard per capita area in heating mode. as well as β is the weighting coefficient, T is the temperature conversion coefficient, and T is the initial temperature inside the heat exchanger plate.

[0010] Furthermore, the system also includes a fresh air detection module, which is used to detect the air quality inside the building to determine whether the air inside the building needs to be replaced.

[0011] Furthermore, the detection method of the fresh air detection module is as follows: Every t time, obtain building interior C Concentration versus time curve C And the humidity change curve R over time ; Through formula Calculate the air quality coefficient ; The obtained air quality coefficient Compared with the system's preset standard threshold coefficient Comparison: like ≤ If the air quality is acceptable, no air exchange is required. Otherwise, if the air quality is substandard, the air should be replaced. in The system's preset standard concentration versus time curve, The system has a preset standard humidity change curve over time. as well as For their respective comparison thresholds, as well as This is the proportionality coefficient.

[0012] Furthermore, the method by which the fresh air detection module replaces the air is as follows: Through formula *k adjusts the ventilation power of the fresh air conditioner to ; Where P is the operating power of the current fresh air conditioner during air exchange, and K is the power conversion coefficient.

[0013] The beneficial effects of this invention are: This invention determines the difference in radiant temperature between the interior and exterior walls by detecting temperature changes in the interior and exterior walls. Combined with the indoor occupants and indoor temperature and humidity conditions, it automatically regulates the temperature of the variable temperature adjustable metal ceiling radiant heat exchanger to achieve an average indoor radiant temperature, resulting in a more comfortable indoor environment. This allows the human body to achieve a natural, constant temperature comfort, eliminating the need for an evacuation system to actively push airflow to obtain heat exchange. Therefore, people indoors are less likely to experience sudden changes in temperature or be too hot or too cold.

[0014] This invention involves the interior of a building. Concentration and preset standard The concentration is compared with the humidity and the preset standard humidity. The analysis is then used to determine the indoor air quality of the building. Based on the test results, the ventilation power of the fresh air conditioning system is increased accordingly for unqualified air quality, taking into account the number of people in the room and the size of the room. This can accurately replace all the polluted and unqualified indoor air to ensure indoor comfort.

[0015] Of course, any product implementing this invention does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a system block diagram of the present invention; Figure 2 A schematic diagram illustrating the scenario of this invention. Detailed Implementation

[0018] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0019] In one embodiment, an air conditioning system based on radiant temperature control is disclosed, such as... Figure 1 , Figure 2 As shown, the system includes: Thermostats are used to regulate the temperature inside buildings. Thermostats have two operating modes: cooling mode and heating mode. Temperature-adjustable metal ceiling radiant heat exchanger is used to regulate the heat and cold radiation inside a building to ensure a balanced heat and cold radiation inside the building. The data acquisition module is used to collect relevant indoor and outdoor parameter information of the building. The analysis module is used to analyze and judge the collected parameter information, thereby controlling the commands. The control module adjusts the temperature-adjustable metal ceiling radiant heat exchange plate according to the acquired control commands.

[0020] Through the above technical solution, this application determines whether the indoor and outdoor radiant temperatures are balanced by comparing them. Then, the analysis module analyzes the collected relevant parameter information and accordingly regulates the temperature of the adjustable metal ceiling radiant heat exchanger. By controlling the temperature of the adjustable metal ceiling radiant heat exchanger, the balance of indoor building surface radiant temperature can be achieved, thus creating a comfortable indoor environment. This solves the problem of balanced heat radiation inside and outside the building, achieving a consistent and comfortable space both inside and outside the building. Its radiant heat exchange principle is passive, using a heat exchanger with adjustable radiant temperature to maintain the indoor temperature, solving the problem of uniform indoor radiant temperature and providing the human body with a naturally constant temperature comfort. It eliminates the need for an airflow system to actively push air to create heat exchange, so the human body is less likely to experience sudden temperature changes or excessive heat / coldness indoors.

[0021] As one embodiment of the present invention, the temperature-adjustable metal ceiling radiant heat exchange plate is provided with a hot and cold circuit, and each hot and cold circuit is equipped with an electrically controlled valve for control. The hot and cold circuit is connected to an external hot and cold box. The temperature-adjustable metal ceiling radiant heat exchange plate is provided with a temperature sensor for detecting the surface temperature of the heat exchange plate.

[0022] The above technical solution involves incorporating a hot and cold circuit within the temperature-adjustable metal ceiling radiant heat exchange plate. This allows for the control of the hot and cold circuits based on the temperature difference between outdoor hot and cold radiation, thus maintaining radiant balance. Simultaneously, a temperature sensor on the surface monitors the heat exchange plate's surface temperature and compares it with the temperature of the built-in hot and cold circuits. This allows for timely detection and handling of frost or condensation on the heat exchange plate surface, thereby protecting it.

[0023] As one embodiment of the present invention, the parameter information includes the building's indoor and outdoor temperatures, the building's indoor humidity value, and the building's indoor C... Concentration values ​​and the number of people indoors in the building.

[0024] Through the above technical solution, since temperature and humidity serve as intuitive data for judging cold and heat radiation temperature, combined with the indoor C of the building... Parameters such as concentration values ​​and the number of people indoors can be used to determine the balance of heat and cold radiation in a building and to assess air quality.

[0025] As one embodiment of the present invention, the analysis method of the analysis module is as follows: In cooling mode, obtain the outdoor temperature. and indoor temperature outdoor temperature With indoor temperature Comparison: when When the indoor temperature is below 10 degrees Celsius, it indicates that the room is not affected by heat radiation, and no control command is generated at this time. when When this occurs, it indicates that the room is affected by thermal radiation, and a control command is generated at this time; In heating mode, the outdoor temperature H is obtained. and indoor temperature outdoor temperature With indoor temperature Comparison: when When the indoor environment is unaffected by cold radiation, no control command is generated. when When this occurs, it indicates that the room is affected by cold radiation, and a control command is generated at this time.

[0026] Through the above technical solution, this implementation provides a method for judging the balance of cold and heat radiation, specifically, obtaining the outdoor temperature in cooling mode. and indoor temperature outdoor temperature With indoor temperature Comparison: When When the building's interior is not affected by outdoor solar heat radiation, and the heat radiation does not affect the rise in indoor air temperature, no adjustments are needed. When the outdoor temperature is affected by external solar thermal radiation, a control command is generated to adjust the indoor radiant temperature; similarly, when in heating mode, the outdoor temperature H is obtained. and indoor temperature outdoor temperature With indoor temperature Comparison: When When the building's interior is unaffected by external cold radiation, the cold radiation from the exterior walls will not affect the decrease in the building's indoor air temperature, and no adjustment to the radiation temperature is required; therefore, no control command is generated. When the temperature is high enough to indicate that the interior is affected by the cold radiation from the exterior wall, a control command is generated to adjust the heat exchange plates accordingly to ensure that the internal and external radiation temperatures are consistent. This allows for a clear and intuitive assessment of whether the cold and heat radiation temperature of the exterior wall is affecting the building's interior under different operating modes, facilitating subsequent adjustments.

[0027] In the above technical solution, the indoor and outdoor temperatures of the building can be detected by installing corresponding temperature detection devices. For example, a black sphere temperature detection module that utilizes strong radiant heat reception can be used to detect changes in radiant (black sphere) temperature and dry sphere temperature, automatically correct for deviations in human body temperature, and determine the temperature magnitude, thereby better judging whether the indoor and outdoor radiant temperatures are balanced.

[0028] As one embodiment of the present invention, the control command is generated in the following manner: Obtain the indoor humidity value R and the number of people N in the building; In cooling mode, open the cold circuit valve inside the temperature-adjustable metal ceiling radiant heat exchanger, and use the formula... *β Adjust the temperature of the temperature-adjustable metal ceiling radiant heat exchanger to... ; In heating mode, open the heat circuit valve inside the temperature-adjustable metal ceiling radiant heat exchanger, and use the formula... *β Adjust the temperature of the temperature-adjustable metal ceiling radiant heat exchanger to... ; Where CR is the standard humidity value in cooling mode, HR is the standard humidity value in heating mode, S is the area of ​​the building's interior, CW is the standard per capita area in cooling mode, and HW is the standard per capita area in heating mode. as well as β is the weighting coefficient, T is the temperature conversion coefficient, and T is the initial temperature inside the heat exchanger plate.

[0029] Through the above technical solution, this embodiment provides a method for adjusting the heat exchange plate, specifically, in cooling mode, when At this time, it is necessary to open the cold circuit valve inside the temperature-adjustable metal ceiling radiant heat exchanger to switch the radiant temperature. The specific temperature of the cold circuit inside the temperature-adjustable metal ceiling radiant heat exchanger can be obtained through the formula... *β adjustment: As can be seen from the formula, the greater the temperature difference between the inside and outside, the more temperature adjustment is required. Generally, in humid environments, moisture absorbs more heat, and when humidity is high, the indoor temperature rises significantly. Therefore, the higher the humidity level, or the more people in the building, the higher the temperature, and the more temperature adjustments are needed. Thus, the formula... *β Based on a comprehensive assessment of factors such as the number of people, humidity levels, and the magnitude of temperature differences between indoors and outdoors, the system automatically adjusts the temperature of the cold circuit within the temperature-adjustable metal ceiling radiant heat exchanger to maintain even heat and cold radiation indoors and ensure comfort. Similarly, in heating mode, the heat circuit valve within the temperature-adjustable metal ceiling radiant heat exchanger is opened, and the temperature is adjusted according to the formula... *β Adjust the temperature of the temperature-adjustable metal ceiling radiant heat exchanger to... As the formula shows, the greater the temperature difference between the inside and outside, the more temperature needs to be adjusted. In heating mode, fewer people indoors result in less heat generation, or lower humidity, leading to a lower indoor temperature. Therefore, the radiant temperature needs to be adjusted accordingly. *β Based on a comprehensive assessment of factors such as the number of people, humidity levels, and the magnitude of temperature differences between the inside and outside, the system automatically adjusts the temperature of the heat exchanger within the variable-temperature adjustable metal ceiling radiant heat exchanger to maintain even heat and cold radiation within the room, ensuring indoor comfort. This operation addresses the issue of solar radiation heating the building's exterior walls (especially windows for natural light) or cold air cooling the exterior walls, which negatively impacts indoor comfort. It also reduces energy consumption by minimizing air circulation. The radiant temperature adjustment of the variable-temperature adjustable metal ceiling radiant heat exchanger significantly reduces the impact of outdoor heat and cold radiation on indoor temperature. By comparing the temperature changes of the inside and outside walls to determine the difference in radiant temperature, and considering the number of people and indoor temperature and humidity, the system automatically adjusts the temperature of the heat exchanger to ensure even heat and cold radiation within the room, resulting in a more comfortable indoor environment.

[0030] In the above technical solution, the standard humidity value CR in cooling mode, the standard humidity value HR in heating mode, and the standard per capita area CWHW in cooling mode and the standard per capita area HW in heating mode are all determined based on historical data, with weighting coefficients... as well as The temperature conversion coefficient β was determined based on a comprehensive analysis of historical data and relevant data from big data, and will not be elaborated on here.

[0031] As one embodiment of the present invention, the system further includes a fresh air detection module, which is used to detect the air quality inside the building, thereby determining whether the air inside the building needs to be replaced. The detection method of the fresh air detection module is as follows: Every t time, obtain building interior C Concentration versus time curve C And the humidity change curve R over time ; Through formula Calculate the air quality coefficient ; The obtained air quality coefficient Compared with the system's preset standard threshold coefficient Comparison: like ≤ If the air quality is acceptable, no air exchange is required. Otherwise, if the air quality is substandard, the air should be replaced. in The system's preset standard concentration versus time curve, The system has a preset standard humidity change curve over time. as well as For their respective comparison thresholds, as well as This is the proportionality coefficient.

[0032] Through the above technical solution, this embodiment provides a method for detecting indoor air quality in buildings. Specifically, at regular intervals (the duration of which can be manually set), indoor air quality (C) is measured. Concentration versus time curve C And the humidity change curve R over time Then through the formula The air quality coefficient was determined through comprehensive analysis. This allows for the assessment of indoor air quality within the building, and the determination of air quality during this time period. Concentration and preset standard The concentration was compared, and the humidity during this period was compared with the preset standard humidity. This combined analysis yielded the indoor air quality and the resulting air quality coefficient. Compared with the system's preset standard threshold coefficient When comparing, ≤ This indicates that during this period Concentration, humidity and preset If the concentration and humidity levels do not change significantly and do not exceed standard values, the air quality is acceptable. In this case, air exchange is not required, and the fresh air system is operating normally. > This indicates that the air pollution level exceeds the preset standard, and the indoor air quality of the building is substandard. At this time, it is necessary to replace the indoor air to completely replace the pollutants and ensure the comfort of the building.

[0033] In the above technical solution, the standard concentration changes over time. The system's preset standard humidity change curve over time All data were fitted based on historical building interior data, with their respective comparison thresholds. as well as proportionality coefficient , and standard threshold coefficient All of these can be obtained from relevant historical data and big data, which will not be elaborated on here.

[0034] As one embodiment of the present invention, the method by which the fresh air detection module replaces air is as follows: Through formula *k adjusts the ventilation power of the fresh air conditioner to ; Where P is the operating power of the current fresh air conditioner during air exchange, and K is the power conversion coefficient.

[0035] Through the above technical solution, this embodiment provides specific operations when indoor ventilation is required in a building. Since the original ventilation power of the fresh air system is insufficient to completely replace the stale air indoors when air replacement is needed, the stale air accumulates, causing discomfort to those inside. Therefore, when unqualified air quality is detected, a formula is used to... *k adjusts the ventilation power of the fresh air conditioner to As can be seen from the formula, the more the detected air quality exceeds the threshold, the more power needs to be increased. At the same time, the larger the indoor area or the more people, the more power needs to be increased. By combining the indoor air quality, the number of people and the size of the indoor area, the ventilation power of the fresh air conditioning system can be increased accordingly. This way, all the polluted and substandard indoor air can be accurately replaced, ensuring indoor comfort.

[0036] The above description is merely an example and illustration of the concept of the present invention. Those skilled in the art can make various modifications or additions to the specific embodiments described or use similar methods to replace them, as long as they do not deviate from the concept of the invention or exceed the scope defined in the claims, they should all fall within the protection scope of the present invention.

Claims

1. An air conditioning system based on radiant temperature control, characterized in that... The system includes: A thermostat, used to regulate the indoor temperature of a building, wherein the thermostat has two operating modes: a cooling mode and a heating mode. A temperature-adjustable metal ceiling radiant heat exchanger is used to regulate the thermal radiation inside a building to ensure balanced thermal radiation. The heat exchanger includes a thermal circuit, each equipped with an electrically controlled valve. This circuit is connected to an external thermal chamber. A temperature sensor is also included on the heat exchanger to detect the surface temperature. The data acquisition module is used to collect relevant indoor and outdoor parameter information of the building, including indoor and outdoor temperature, indoor humidity, indoor CO2 concentration, and number of people in the building. The analysis module is used to analyze and judge the collected parameter information, thereby controlling the commands. The analysis method of the analysis module is as follows: In cooling mode, obtain the outdoor temperature. and indoor temperature outdoor temperature With indoor temperature Comparison: When ≤ When the indoor temperature is normal, it indicates that the room is not affected by heat radiation, and no control command is generated; when the temperature is normal, it indicates that the room is not affected by heat radiation. > When this occurs, it indicates that the room is affected by thermal radiation, and a control command is generated at this time; In heating mode, the outdoor temperature is obtained. and indoor temperature outdoor temperature With indoor temperature Comparison: When ≥ When the indoor environment is unaffected by cold radiation, no control command is generated; when... < When this occurs, it indicates that the room is affected by cold radiation, and a control command is generated at this time; The control module adjusts the temperature-adjustable metal ceiling radiant heat exchange plate according to the acquired control instructions. The control instructions are generated in the following manner: Obtain the indoor humidity value R and the number of people N in the building; In cooling mode, open the cold circuit valve inside the temperature-adjustable metal ceiling radiant heat exchanger, and use the formula... ， Adjust the temperature of the variable temperature adjustable metal ceiling radiant heat exchanger to... ; in: This is the standard humidity value in cooling mode. For the area of ​​the building, This represents the standard per capita area under cooling mode. as well as These are the weighting coefficients. The temperature conversion coefficient, The initial temperature inside the heat exchanger plate; In heating mode, open the heat circuit valve inside the temperature-adjustable metal ceiling radiant heat exchanger, and use the formula... ， Adjust the temperature of the variable temperature adjustable metal ceiling radiant heat exchanger to... ; in: This is the standard humidity value under heating mode. For the area of ​​the building, This refers to the standard per capita area under heating conditions. as well as These are the weighting coefficients. The temperature conversion coefficient, The initial temperature inside the heat exchanger plate; The fresh air detection module is used to detect the indoor air quality of a building to determine whether the indoor air needs to be replaced. The detection method of the fresh air detection module is as follows: Every Time, obtaining architectural interior Concentration versus time curve And the humidity change curve over time. ;Through formula ， Calculate the air quality coefficient J; in: The system's preset standard concentration versus time curve, The system has a preset standard humidity change curve over time. as well as For their respective comparison thresholds as well as This is the proportionality coefficient; The obtained air quality coefficient Compared with the system's preset standard threshold coefficient Compare: If ≤ If the air quality is acceptable, no air exchange is required. Otherwise, if the air quality is substandard, the air should be replaced. The method by which the fresh air detection module replaces the air is as follows: Through formula , Adjust the air exchange power of the fresh air conditioner to ; in: This refers to the operating power of the current fresh air conditioning unit during air exchange. For the number of people inside the building, For the area of ​​the building room, This is the power conversion factor.

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