Super high-rise building chimney effect regulation and control method and system based on cold air drainage

Abstract

The invention discloses a super high-rise building chimney effect regulation and control method and system based on cold air drainage, and relates to the technical field of building physics. In the heating season, the internal temperature and the outdoor temperature of a large-stroke shuttle elevator shaft are collected in real time; when the outdoor temperature is higher than the preset temperature, all the holes are closed; when the outdoor temperature is lower than the preset temperature and the indoor and outdoor temperature difference is smaller than 8 DEG C, all holes are closed; when the outdoor temperature is lower than the preset temperature and the indoor and outdoor temperature difference is larger than 8 DEG C, all holes are opened, outdoor cold air enters the large-stroke shuttling elevator shaft and is mixed with hot air in the large-stroke shuttling elevator shaft, the air temperature in the large-stroke shuttling elevator shaft is reduced, and the hot pressure difference generated by the temperature difference is weakened; and the pressure difference delta P of the elevator landing door does not exceed 65Pa. According to the invention, drainage of cold air is realized, so that the problem of chimney effect caused by temperature difference is effectively reduced. And therefore, the situation that the elevator door cannot be normally opened and closed is reduced, and the safety and normal operation of the elevator are guaranteed.

Description

Technical Field

[0001] This invention relates to the field of building physics technology, and more specifically to the field of methods and systems for controlling the chimney effect of super high-rise buildings based on cold air diversion. Background Technology

[0002] With the acceleration of urbanization and the continuous increase in building height, super high-rise buildings have gradually become one of the symbols of modern cities. When the weather is cold, the indoor temperature of the building is higher than the outdoor temperature. Due to the temperature difference between indoors and outdoors, the air density difference causes the hot air inside the building to rise. This pressure difference formed by the air density difference is called thermal pressure. The cold outdoor air will seep into the interior through the entrances, holes, and curtain wall gaps at the bottom of the super high-rise building. After being heated indoors, the cold air increases in temperature, decreases in density, and flows upward. It travels vertically through the building's stairwells, elevator shafts, pipe shafts, etc., to reach the upper floors of the building, and then is discharged through the curtain wall gaps and openings of the upper floors. This process forms the chimney effect of super high-rise buildings.

[0003] However, super high-rise buildings often face many challenges during operation, the most prominent of which is the chimney effect caused by temperature and pressure differences. The chimney effect is mainly due to the temperature difference between the inside of the building and the outside environment, which causes the airflow to rise and fall inside the building, generating excessive pressure difference. Excessive pressure difference can make it difficult for elevator doors to open or close normally, or even cause the elevator to malfunction. This unstable airflow not only affects indoor comfort, but may also lead to energy waste and aerodynamic noise and other adverse effects.

[0004] To mitigate the chimney effect, traditional technologies typically employ passive control methods, such as increasing building airtightness, adding elevator lobby doors, adjusting airflow paths, or enhancing the operation of air conditioning systems to control indoor temperature and airflow. While these passive control methods can reduce the impact of airflow on the building interior to some extent, they do not effectively solve the chimney effect problem caused by temperature and pressure differences, especially at high temperatures or high airflow velocities, where the effectiveness of traditional technologies is very limited. Summary of the Invention

[0005] The purpose of this invention is to address the fact that existing chimney effect control technologies mainly rely on passive control methods and have not effectively solved the technical problem of chimney effect caused by temperature and pressure differences. This invention provides a method and system for controlling the chimney effect of super high-rise buildings based on cold air diversion.

[0006] To achieve the above objectives, the present invention specifically adopts the following technical solution: The first aspect of the present invention provides a method for controlling the chimney effect of super high-rise buildings based on cold air diversion, comprising the following steps: S1. At least one closable opening connected to the outdoor atmosphere shall be provided on the side wall of the long-stroke shuttle elevator shaft of the super high-rise building; several indoor temperature sensors shall be vertically spaced on the inner wall of the long-stroke shuttle elevator shaft; and outdoor temperature sensors shall be arranged on the outside of the super high-rise building. S2. During the heating season, the temperature inside the long-stroke shuttle elevator shaft and the outdoor temperature are collected in real time through indoor temperature sensors and outdoor temperature sensors. Close all openings when the outdoor temperature is higher than the preset temperature. When the outdoor temperature is lower than the preset temperature and the temperature difference between the inside of the long-stroke shuttle elevator shaft and the outdoor temperature is greater than 8°C, all openings are opened to allow cold outdoor air to enter the long-stroke shuttle elevator shaft and mix with the hot air inside the long-stroke shuttle elevator shaft, thereby reducing the air temperature inside the long-stroke shuttle elevator shaft and weakening the thermal pressure difference caused by the temperature difference. When the outdoor temperature is lower than the preset temperature and the temperature difference between the inside of the long-stroke shuttle elevator shaft and the outdoor temperature is less than 8℃, close all openings. S3. Based on the temperature difference ΔT between the inside of the long-stroke shuttle elevator shaft and the outside temperature collected in step S2, confirm whether to open or close the opening so that the thermal pressure difference ΔP between the landing doors of the long-stroke shuttle elevator shaft in the super high-rise building does not exceed 65Pa.

[0007] In one implementation, in step S3, the thermal pressure difference ΔP between the doors is calculated using the following formula: ; in, Indoor air density, Let gravitational acceleration be 9.8 m / s². The difference in elevation between the ground and the neutral plane. To control the temperature inside the elevator shaft during long-distance travel, The outdoor temperature is reduced by the cold air flow process, which effectively reduces the temperature difference in the long-travel elevator shaft and suppresses the thermal pressure difference caused by the temperature difference, thereby preventing the elevator doors from failing to close properly due to excessive pressure difference.

[0008] In one embodiment, in step S3, the temperature inside the long-stroke shuttle elevator shaft is monitored in real time by an indoor temperature sensor, and the outdoor temperature is monitored in real time by an outdoor temperature sensor. The temperature inside the long-stroke shuttle elevator shaft and the outdoor temperature are uploaded to the building control platform in real time by the building automation system. The building control platform controls the opening switch to keep the pressure difference between the landing doors inside the long-stroke shuttle elevator shaft below 65Pa, thus ensuring the stable opening and closing of the elevator doors.

[0009] In one implementation, the ratio of the sum of the longitudinal cross-sectional areas of all openings to the cross-sectional area of ​​the long-stroke shuttle elevator shaft is 0.08-0.1.

[0010] In one implementation, the center of the bottommost opening is no more than 50m above the outdoor ground level.

[0011] In one implementation, an indoor temperature sensor is installed on the inner wall of the long-travel elevator shaft every 5-10 floors in a super high-rise building.

[0012] In one implementation, in step S2, the preset temperature is 15°C. When the outdoor temperature is higher than 15°C, the building control platform will remind staff to close all openings.

[0013] In one implementation, in step S2, the preset temperature is 15°C, and when the outdoor temperature is higher than 15°C, all openings are automatically closed through the building control platform.

[0014] In one implementation, in step S1, because adding air ducts increases resistance, all openings can be directly connected to the outdoor atmosphere, instead of being connected to the outside through air ducts.

[0015] A second aspect of the present invention provides a chimney effect control system for super high-rise buildings based on cold air diversion, applicable to the aforementioned chimney effect control method for super high-rise buildings based on cold air diversion. The system includes at least one openable and closable opening on the side wall of a long-stroke shuttle elevator shaft in the super high-rise building; a plurality of indoor temperature sensors vertically spaced on the inner wall of the long-stroke shuttle elevator shaft; an outdoor temperature sensor located on the outside of the super high-rise building; a building automation system; a building control platform; and opening and closing mechanisms at each opening. The indoor and outdoor temperature sensors are signal-connected to the building automation system, and the building automation system is signal-connected to the building control platform. The building control platform controls the opening and closing mechanisms to open and close the openings.

[0016] The beneficial effects of this invention are as follows: 1. This invention achieves the diversion of cold air by setting openings in the long-travel elevator shaft of super high-rise buildings, thereby effectively reducing the chimney effect caused by temperature differences.

[0017] 2. This invention reduces the thermal pressure difference by mixing cold air with hot air after it enters the long-stroke shuttle elevator shaft, thereby reducing the occurrence of elevator doors failing to open and close properly and ensuring the safety and normal operation of the elevator.

[0018] 3. This invention automatically adjusts the opening and closing of the opening based on the temperature difference, avoiding excessive introduction of cold air and saving energy. When the outdoor temperature is higher than the set threshold, the system will automatically close the opening to prevent unnecessary introduction of cold air, ensuring energy saving of the system at high temperatures and further reducing the building's energy consumption.

[0019] 4. Through the building automation system, the data from indoor and outdoor temperature sensors are monitored and uploaded to the building control platform in real time. The system can quickly respond to changes in temperature difference and automatically or manually remind staff to adjust the opening status of the openings, avoiding potential delays and errors, ensuring temperature difference control and airflow stability, thereby improving the building's operating efficiency. Attached Figure Description

[0020] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0021] Figure 1 This is a flowchart of the method for controlling the chimney effect of super high-rise buildings based on cold air diversion, according to the present invention.

[0022] Figure 2 This is a schematic diagram of the overall structure of the cold air diversion system.

[0023] Figure 3 This is a partial structural diagram of a long-travel shuttle elevator shaft.

[0024] Figure 4 This is a schematic diagram of a partial structure of the opening.

[0025] Figure 5 This is a simulation diagram of the technical solution in Example 4.

[0026] Explanation of the attached diagram labels: 1. Long-stroke shuttle elevator shaft; 2. Opening; 3. Indoor temperature sensor. Detailed Implementation

[0027] To make the technical problems, technical solutions, and technical effects of the present invention clearer, 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. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0028] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0029] Example 1 Please see the appendix Figures 1 to 4 This embodiment provides a method for controlling the chimney effect of super high-rise buildings based on cold air diversion, including the following steps: S1. At least one openable opening 2 that communicates with the outdoor atmosphere is provided on the side wall of the long-stroke shuttle elevator shaft 1 of the super high-rise building; several indoor temperature sensors 3 are vertically spaced on the inner wall of the long-stroke shuttle elevator shaft 1; and outdoor temperature sensors are arranged on the outside of the super high-rise building. S2. During the heating season, the temperature inside the large-stroke shuttle elevator shaft 1 and the outdoor temperature are collected in real time by indoor temperature sensor 3 and outdoor temperature sensor. Close all openings 2 when the outdoor temperature is higher than the preset temperature; When the outdoor temperature is lower than the preset temperature and the temperature difference between the inside temperature of the large-stroke shuttle elevator shaft 1 and the outdoor temperature is greater than 8℃, all openings 2 are opened to allow cold outdoor air to enter the large-stroke shuttle elevator shaft 1 and mix with the hot air inside the large-stroke shuttle elevator shaft 1, thereby reducing the air temperature inside the large-stroke shuttle elevator shaft 1 and weakening the thermal pressure difference caused by the temperature difference. When the outdoor temperature is lower than the preset temperature and the temperature difference between the inside temperature of the large-stroke shuttle elevator shaft 1 and the outdoor temperature is less than 8℃, close all openings 2. S3. Based on the temperature difference ΔT between the inside of the large-stroke shuttle elevator shaft 1 and the outside temperature collected in step S2, confirm whether to open or close the opening 2 so that the thermal pressure difference ΔP between the landing doors of the large-stroke shuttle elevator shaft 1 in the super high-rise building does not exceed 65Pa.

[0030] Specifically, firstly, at least one openable opening 2 is provided on the side wall of the large-stroke shuttle elevator shaft 1 of the building. The design of the opening 2 allows cold air to enter the large-stroke shuttle elevator shaft 1 smoothly. Then, the thermal pressure difference ΔP between the landing doors is calculated using the following formula: ; in, Indoor air density, The acceleration due to gravity is taken as 9.8 m / s². 2 , The difference in elevation between the ground and the neutral plane. To control the temperature inside the elevator shaft during long-distance travel, The outdoor temperature is reduced by the cold air flow process, which effectively reduces the temperature difference in the long-travel elevator shaft and suppresses the thermal pressure difference caused by the temperature difference, thereby preventing the elevator door from failing to close properly due to excessive pressure difference. Finally, the temperature inside the large-stroke shuttle elevator shaft 1 is monitored in real time by the indoor temperature sensor 3, and the outdoor temperature is monitored in real time by the outdoor temperature sensor. The temperature inside the large-stroke shuttle elevator shaft 1 and the outdoor temperature are uploaded to the building control platform in real time by the building automation system. The building control platform controls the opening and closing of the regulating opening 2 to keep the pressure difference between the landing doors in the large-stroke shuttle elevator shaft 1 below 65Pa, ensuring the stable opening and closing of the elevator doors.

[0031] The temperature difference ΔT between the interior and exterior temperatures of the long-stroke shuttle elevator shaft 1 is uploaded to the building control platform in real time through the building automation system. Specifically, the temperature difference ΔT between the inside and outside of the large-stroke shuttle elevator shaft 1 is transmitted in real time to the Building Automation System (BAS) via a data acquisition module. The BAS, as the central control platform, is responsible for collecting, analyzing, and storing real-time data from various sensors. It not only monitors the temperature difference ΔT between the inside and outside of the large-stroke shuttle elevator shaft 1, but also dynamically adjusts the system in real time through comprehensive data processing, sending the adjustment results to each control unit. All these events and data are accurately recorded and uploaded to the building control platform for archiving. On the building control platform, managers can view the specific measures taken by the system each time an event occurs, including the opening and closing of the opening 2, adjustment time, and corresponding environmental change data, providing comprehensive monitoring of the cold air diversion system.

[0032] In this embodiment, through this series of control steps, the solution can achieve dynamic adjustment of the temperature and thermal pressure difference inside the long-stroke shuttle elevator shaft 1 in super high-rise buildings, while effectively reducing the negative impact of the chimney effect, ensuring the normal operation of the elevator doors and reducing aerodynamic noise, and improving the comfort and safety of the building.

[0033] Example 2 Please see the appendix Figures 2 to 4 This embodiment is a further optimization based on Embodiment 1, as detailed below: The center of the bottommost opening 2 is no more than 50m above the outdoor ground level.

[0034] Specifically, in super high-rise buildings, the area below the neutral plane is under negative pressure, which can more effectively guide outdoor cold air into the core tube area of ​​the building, thereby suppressing the chimney effect caused by temperature difference in the large-stroke shuttle elevator shaft 1. This height can ensure that the airflow around the opening 2 is relatively stable, avoiding the impact of unstable airflow at high altitudes on the efficiency of cold air diversion. In addition, this height is set within a reasonable range of building structure and facility layout, which not only meets the actual needs of cold air diversion, but also does not affect the aesthetics and functionality of the building facade.

[0035] Example 3 This embodiment is a further optimization based on Embodiment 1 or Embodiment 2, as detailed below: The total opening area A of hole 2 o The ratio of the cross-sectional area A1 of the long-stroke shuttle elevator shaft 1 to that of the long-stroke shuttle elevator shaft 1 is 0.08-0.1; Specifically, the total opening area A of opening 2 o The ratio of the cross-sectional area A1 of the large-stroke shuttle elevator shaft 1 to the cross-sectional area A1 is precisely set to 0.08-0.1. Based on the testing and simulation analysis of various building wind environments and airflow rates, the opening area A... o The ratio of the cold air inflow to the cross-sectional area A1 of the long-stroke shuttle elevator shaft 1 directly affects the amount and velocity of cold air inflow. If the ratio is too large, it may lead to excessive cold air inflow, thus affecting the operation of the elevator and the normal operation of other air conditioning equipment in the building. If the ratio is too small, the cold air diversion effect will be greatly reduced, and the chimney effect cannot be effectively weakened. Therefore, a ratio range of 0.08-0.1 ensures the stability and efficiency of cold air diversion, while not causing excessive impact on other systems in the building.

[0036] Example 4 This embodiment is a further optimization based on Embodiment 1 or Embodiment 2, as detailed below: An indoor temperature sensor 3 is installed on the inner wall of the long-travel elevator shaft 1 every 5-10 floors; Specifically, multiple indoor temperature sensors 3 monitor the temperature inside the long-stroke shuttle elevator shaft 1 in real time, while an outdoor temperature sensor monitors the outdoor temperature in real time and uploads the data to the building control platform. Both indoor and outdoor temperature sensors are high-precision sensors. During installation, it is ensured that the indoor temperature sensors 3 are evenly distributed at key locations on the inner wall of the long-stroke shuttle elevator shaft 1. Temperature data is uploaded to the control platform through the building automation system to monitor the temperature inside the long-stroke shuttle elevator shaft 1 in real time. Based on the temperature difference between the temperature inside the long-stroke shuttle elevator shaft 1 and the outdoor temperature, the control platform ensures that it alerts and controls the opening and closing of the opening 2 based on real-time data. The indoor temperature sensors 3 are required to be evenly distributed and cover the entire area of ​​the long-stroke shuttle elevator shaft 1 to avoid temperature monitoring blind spots.

[0037] Example 5 This embodiment is a further optimization based on any one of Embodiments 1 to 4, as detailed below: When the outdoor temperature is higher than 15℃, the building control platform will remind personnel to close opening 2. Specifically, when the outdoor temperature exceeds 15℃, a reminder signal is issued through the building control platform, prompting staff to close opening 2. The purpose of this operation is to avoid unnecessary introduction of cold air, save energy, and ensure the normal operation of airflow inside the building. Indoor temperature sensor 3 monitors the outdoor temperature in real time. When the outdoor temperature exceeds 15℃, indoor temperature sensor 3 will automatically trigger the feedback mechanism of the control system. The temperature difference ΔT in the large-stroke shuttle elevator shaft 1 is monitored in real time by indoor temperature sensor 3. The building control platform integrates a temperature monitoring data processing module. According to the preset control logic, when the outdoor temperature is detected to exceed 15℃, the building control platform will issue a reminder to the building management personnel. The reminder signal is displayed through a visual interface or sent to relevant personnel through voice prompts, emails, SMS, etc. The reminder content includes the temperature or a suggestion to close opening 2 and the potential energy waste.

[0038] Example 6 This embodiment is a further optimization based on any one of Embodiments 1 to 4, as detailed below: Opening 2 will automatically close when the outdoor temperature is above 15℃; Specifically, when the outdoor temperature exceeds 15℃, the building automation system automatically closes opening 2 to ensure that cold air does not enter the long-stroke shuttle elevator shaft 1 unnecessarily, thereby avoiding energy waste and maintaining stable airflow within the long-stroke shuttle elevator shaft 1. When the outdoor temperature is detected to be above 15℃, the building automation system immediately activates the automatic control mechanism to close opening 2. This operation is achieved through an electric actuator, which automatically closes opening 2 according to the instructions of the building automation system. The indoor temperature sensor 3 monitors the outdoor temperature, and once the temperature exceeds 15℃, the signal is transmitted to the building automation system. Based on the data provided by the indoor temperature sensor 3, the building automation system automatically analyzes the current environmental conditions and determines whether it is necessary to close opening 2. If the conditions are met, a closing signal is issued, controlling the electric actuator to complete the closing operation of opening 2. The response time of the electric actuator when closing opening 2 is set to 1-3 seconds.

[0039] Table 1 shows the opening and closing status of a certain opening 2 on a certain day in a super high-rise building equipped with the super high-rise building chimney effect control system based on cold air diversion.

[0040] Table 1: Temperature Sensor Data

[0041] Through real-time temperature difference monitoring and control of opening 2, the cold air intake is automatically activated when the temperature difference is large, reducing the pressure difference problem caused by the chimney effect, further ensuring the normal opening and closing of the elevator door, and avoiding elevator shutdown due to excessive temperature difference. When the temperature difference is small, the system automatically closes opening 2 to prevent unnecessary introduction of cold air, reduce energy consumption, effectively save energy expenditure in building operation, and improve the overall energy efficiency of the building.

[0042] Example 7 The technical solution of Example 4 was analyzed using simulation software, as follows: Simulation software: CONTAMW, a ventilation simulation software employing a multi-zone network method; It is used to simulate a 489m super high-rise building in Chengdu.

[0043] Boundary conditions and input parameters for modeling and analysis: Setting boundary conditions: Model Introduction: Floor plan dimensions for B1 / F1 / 91 / 92: 68m × 68m; The shaft dimensions of the three shuttle sightseeing elevators are 8.7m × 2.9m. The sightseeing elevator's lifting height is 451m. Total number of meshes in the model: 7.5 million; Parameter settings: Outdoor temperature: -0.9℃; Ventilation outlet resistance coefficient: 10 (compared to 2-3 for ordinary windows); Indoor temperature on floors 91 and 92: 20℃; Indoor temperature on B1 / F1 floors: 20℃; 8-story equipment floor elevator shaft ventilation opening size: 2m 2 ; Simulation results are as follows Figure 5 As shown, when the elevator shaft has no opening, the elevator door pressure from B3 to F88 ranges from -175Pa to 130Pa. The pressure on the bottom floor and upper floors has exceeded the maximum pressure threshold of 120Pa for the elevator door. When a 2m elevator shaft is installed in the first equipment floor (8 floors, 43.5m high) 2 When the elevator doors were in the opening, the pressure on the elevator doors from B3 to F88 increased from -64Pa to 54Pa, which was far below the elevator door pressure threshold and within the elevator door pressure capacity. The simulation results show that the method disclosed in this scheme has very important guiding significance for suppressing the chimney effect of super high-rise buildings.

Claims

1. A method for controlling the chimney effect of super high-rise buildings based on cold air diversion, characterized in that, Includes the following steps: S1. At least one openable opening (2) is provided on the side wall of the long-stroke shuttle elevator shaft (1) of the super high-rise building; several indoor temperature sensors (3) are vertically spaced on the inner wall of the long-stroke shuttle elevator shaft (1); several outdoor temperature sensors are arranged on the outside of the super high-rise building. S2. During the heating season, the temperature inside the long-stroke shuttle elevator shaft (1) and the outdoor temperature are collected in real time by the indoor temperature sensor (3) and the outdoor temperature sensor. Close all openings when the outdoor temperature is higher than the preset temperature (2); When the outdoor temperature is lower than the preset temperature and the temperature difference between the inside temperature of the large-stroke shuttle elevator shaft (1) and the outdoor temperature is greater than 8°C, all openings (2) are opened to allow the cold outdoor air to enter the large-stroke shuttle elevator shaft (1) and mix with the hot air inside the large-stroke shuttle elevator shaft (1), thereby reducing the air temperature inside the large-stroke shuttle elevator shaft (1) and weakening the thermal pressure difference caused by the temperature difference. When the outdoor temperature is lower than the preset temperature and the temperature difference between the inside temperature of the large-stroke shuttle elevator shaft (1) and the outdoor temperature is less than 8°C, close all openings (2). S3. Based on the temperature difference ΔT between the inside of the large-stroke shuttle elevator shaft (1) and the outside temperature collected in step S2, confirm whether to open or close the opening (2) so that the thermal pressure difference ΔP between the floor doors of the large-stroke shuttle elevator shaft (1) of the super high-rise building does not exceed 65Pa.

2. The method for controlling the chimney effect of super high-rise buildings based on cold air diversion according to claim 1, characterized in that, In step S3, the thermal pressure difference ΔP between the floor and the door is calculated using the following formula: ； in, Indoor air density, Let gravitational acceleration be 9.8 m / s². The difference in elevation between the ground and the neutral plane. To measure the temperature inside the long-travel shuttle elevator shaft (1), The outdoor temperature is reduced by the cold air flow process. The cold air effectively reduces the temperature difference in the large-stroke shuttle elevator shaft (1), suppresses the thermal pressure difference caused by the temperature difference, and thus prevents the elevator door from failing to close properly due to excessive pressure difference.

3. The method for controlling the chimney effect of super high-rise buildings based on cold air diversion according to claim 2, characterized in that, In step S3, the temperature inside the large-stroke shuttle elevator shaft (1) is monitored in real time by an indoor temperature sensor (3), and the outdoor temperature is monitored in real time by an outdoor temperature sensor. The temperature inside the large-stroke shuttle elevator shaft (1) and the outdoor temperature are uploaded to the building control platform in real time by the building automation system. The opening and closing of the regulating opening (2) is controlled by the building control platform to keep the pressure difference between the floor doors inside the large-stroke shuttle elevator shaft (1) below 65Pa, so as to ensure the stable opening and closing of the elevator doors.

4. The method for controlling the chimney effect of super high-rise buildings based on cold air diversion according to claim 1, characterized in that, The ratio of the sum of the longitudinal cross-sectional areas of all openings (2) to the cross-sectional area of ​​the long-stroke shuttle elevator shaft (1) is 0.08-0.

1.

5. The method for controlling the chimney effect of super high-rise buildings based on cold air diversion according to claim 1, characterized in that, The center of the bottom opening (2) is no more than 50m above the outdoor ground.

6. The method for controlling the chimney effect of super high-rise buildings based on cold air diversion according to claim 1, characterized in that, In super high-rise buildings, an indoor temperature sensor (3) is installed on the inner wall of the long-travel shuttle elevator shaft (1) every 5-10 floors.

7. The method for controlling the chimney effect of super high-rise buildings based on cold air diversion according to claim 6, characterized in that, In step S2, the preset temperature is 15°. When the outdoor temperature is higher than 15°, the building control platform will remind staff to close all openings (2).

8. The method for controlling the chimney effect of super high-rise buildings based on cold air diversion according to claim 1, characterized in that, In step S2, the preset temperature is 15°C. When the outdoor temperature is higher than 15°C, all openings are automatically closed through the building control platform (2).

9. The method for controlling the chimney effect of super high-rise buildings based on cold air diversion according to claim 1, characterized in that, In step S1, all openings (2) can be directly connected to the outdoor atmosphere.

10. A chimney effect control system for super high-rise buildings based on cold air diversion, applicable to the chimney effect control method for super high-rise buildings based on cold air diversion as described in any one of claims 1 to 9, characterized in that, It includes at least one opening (2) that can be opened and closed on the side wall of the long-stroke shuttle elevator shaft (1) of the super high-rise building, several indoor temperature sensors (3) that are vertically spaced on the inner wall of the long-stroke shuttle elevator shaft (1), an outdoor temperature sensor that is installed on the outside of the super high-rise building, a building automation system, a building control platform, and an opening and closing mechanism at each opening (2); the indoor temperature sensor (3) and the outdoor temperature sensor are connected to the building automation system, the building automation system is connected to the building control platform, and the building control platform controls the opening and closing mechanism to open and close the opening (2).

Images