Chilled water adjusting device and system based on automatic control

Abstract

The invention relates to the technical field, and discloses a chilled water adjusting device and system based on automatic control, the chilled water adjusting device comprises a valve body, a runner cavity channel is formed in the valve body, and chilled water pipelines are installed at the two ends of the exterior of the valve body through flange structures; the transmission mechanism is arranged at the top of the valve body and comprises a gear motor and a transmission rod, the gear motor is fixed to the upper end face of the valve body through a side frame, a driving gear is fixed to the output end of the gear motor, and the transmission rod penetrates through the top of the valve body and extends into the circulation cavity channel. A valve clack is fixed to the end, located in the runner cavity, of the transmission rod. The detection unit comprises an ultrasonic flowmeter, a temperature sensor and a pressure sensor which are mounted on the inner wall of the circulation cavity channel. Multi-parameter real-time monitoring and intelligent regulation and control are achieved, energy consumption is optimized, safety and reliability are improved, and the problems that a traditional device is single in monitoring, low in control precision, high in energy consumption and insufficient in protection are solved.

Description

Technical Field

[0001] This invention relates to the field of technology, specifically to a chilled water conditioning device and system based on automated control. Background Technology

[0002] Chilled water systems are crucial for temperature regulation and control in various scenarios, including industrial production, commercial buildings, and daily life. Traditional chilled water regulation devices primarily rely on manual valves or simple mechanical control valves, requiring frequent manual operation to adjust parameters such as flow rate and pressure, making it difficult to achieve precise control based on environmental changes and actual needs. With the development of automation technology, some chilled water regulation devices have introduced electric actuators and basic sensors, but these mostly provide single-parameter control and lack the ability to comprehensively perceive and coordinate the overall operating status of the system.

[0003] Existing technologies have the following significant drawbacks: First, insufficient control precision, unable to respond in real time to complex and ever-changing operating conditions, easily leading to large temperature fluctuations, affecting production efficiency or indoor comfort; Second, lack of environmental awareness, focusing only on the parameters of the chilled water itself, without considering the impact of environmental factors such as temperature, humidity, and air quality on system operation, resulting in energy waste; Third, low system integration, with each module operating independently, making it difficult to achieve data sharing and intelligent decision-making, increasing operation and maintenance costs; Fourth, imperfect safety protection mechanisms, unable to respond promptly and effectively to sudden failures or abnormal operating conditions, posing safety hazards. Therefore, this paper proposes a chilled water regulating device and system based on automated control. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a chilled water conditioning device and system based on automated control, thereby solving the problems mentioned in the background section.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a chilled water regulating device based on automated control, comprising:

[0006] The valve body has an internal flow channel, and both external ends of the valve body are fitted with chilled water pipes via flange structures.

[0007] A transmission mechanism is located at the top of the valve body. The transmission mechanism includes a geared motor and a transmission rod. The geared motor is fixed to the upper end face of the valve body via a side bracket. A drive gear is fixed to the output end of the geared motor. The transmission rod extends through the top of the valve body into the flow channel. A valve disc is fixed to one end of the transmission rod inside the flow channel. The transmission rod has transmission teeth on its exterior, and the drive gear is connected to the transmission teeth. The precise adjustment of the valve disc opening is achieved through the cooperation of the geared motor and the transmission teeth. The chilled water flow rate can be adjusted in real time according to system requirements, improving the accuracy and response speed of flow control and effectively avoiding the temperature fluctuation problem caused by the lag in traditional valve adjustment.

[0008] The detection unit includes an ultrasonic flow meter, a temperature sensor, and a pressure sensor installed on the inner wall of the flow channel. Through real-time monitoring of multiple parameters, it provides accurate data support for the system, facilitates timely detection of system malfunctions, and ensures the stable operation of the system.

[0009] The intelligent controller, fixed to the outside of the side frame, enables centralized control and coordination of various modules. It can make intelligent decisions based on preset programs and real-time data, thereby improving the automation level and management efficiency of the system.

[0010] The environmental sensing module includes a temperature and humidity sensor and an air quality sensor fixed to the other side of the side frame. By sensing environmental parameters, the system can adapt to different environmental conditions, optimize operating strategies, reduce the impact of environmental factors on system performance, and improve energy efficiency. The intelligent controller communicates with the external system through a wireless transmission module and can automatically control the opening of the geared motor regulating valve based on the terminal load rate and environmental parameters to achieve dynamic matching of chilled water parameters.

[0011] Preferably, a frame is provided on the outside of the transmission rod at the upper end of the valve body, and the transmission rod and the frame are connected by a threaded connection.

[0012] Preferably, a handwheel is installed on the top of the transmission rod, and the handwheel is fixed to the transmission rod by bolts.

[0013] Preferably, the ultrasonic flow meter is embedded in the inner wall of the flow channel cavity near the valve body output end, the temperature sensor and pressure sensor are embedded in the inner wall of the flow channel cavity, and a sealing ring is provided between the chilled water pipe and the valve body.

[0014] An automated control-based chilled water conditioning system, based on the aforementioned automated control-based chilled water conditioning device, is characterized by comprising:

[0015] The data acquisition and preprocessing module, connected to the detection unit and the environmental sensing module, is used to collect data from the ultrasonic flow meter, temperature sensor, pressure sensor, temperature and humidity sensor and air quality sensor, and to perform filtering and calibration preprocessing operations on the data.

[0016] The intelligent decision-making module, connected to the data acquisition and preprocessing module and the intelligent controller, can receive preprocessed data and generate corresponding valve opening adjustment commands by combining preset control algorithms and terminal load rate models.

[0017] The remote interaction module connects to the intelligent controller, enabling information exchange with external terminals and supporting remote viewing of system operating status and sending control commands.

[0018] The energy consumption analysis module, connected to the data acquisition and preprocessing module, can statistically analyze and evaluate the energy consumption data of the chilled water system and generate an energy consumption report.

[0019] The safety protection module, connected to the intelligent controller and various sensor modules, is used to monitor abnormal conditions during system operation and issue early warnings, while also providing overload protection and other functions.

[0020] Preferably, the data acquisition frequency of the data acquisition and preprocessing module is set according to the system operation requirements, ranging from 1 to 10 times / second. During the preprocessing process, a Kalman filter algorithm is used to filter noisy data, and the drift error of the sensor is automatically calibrated to ensure the accuracy and stability of the data.

[0021] Preferably, the intelligent decision-making module has built-in multiple control strategy models, including proportional-integral-derivative control models, fuzzy control models, and neural network control models. It can automatically select the optimal control model to generate adjustment commands based on different terminal load rates and combinations of environmental parameters, and the parameters of the control model can be continuously optimized through self-learning algorithms.

[0022] Preferably, the remote interaction module uses an encrypted wireless communication protocol to communicate with external terminals, supports access from multiple terminals such as mobile APP and computer client, and can display parameters such as flow rate, temperature, and pressure of chilled water as well as system energy consumption data in real time. At the same time, it allows authorized users to remotely modify the control parameters and target settings of the intelligent controller.

[0023] Preferably, the energy consumption analysis module performs statistical analysis on the system's daily, monthly, and annual energy consumption, calculates the energy consumption index per unit of cooling capacity, compares the energy consumption differences over different time periods, identifies energy consumption anomalies and analyzes the causes, provides data support for energy-saving optimization, and can predict future energy consumption trends based on historical energy consumption data.

[0024] Preferably, the safety protection module is equipped with a multi-level early warning mechanism. When abnormal situations such as chilled water parameters exceeding the safe range, sensor failure, or communication interruption are detected, different levels of audible and visual alarm signals are issued according to the severity of the abnormality, and the abnormal information is sent to the designated terminal through the remote interaction module. At the same time, in emergency situations, it can automatically control the reduction motor to adjust the valve disc to a safe opening degree.

[0025] Compared with the prior art, the present invention provides a chilled water conditioning device and system based on automated control, which has the following beneficial effects:

[0026] This invention utilizes an automated chilled water regulating device that, through the collaborative operation of a detection unit and an environmental sensing module, achieves real-time and accurate monitoring of multiple parameters, including chilled water flow rate, temperature, pressure, ambient temperature and humidity, and air quality. This provides comprehensive and accurate data acquisition, overcoming the limitations of traditional devices that rely on single or untimely parameter monitoring. The combination of an intelligent controller and an intelligent decision-making module enables automatic adjustment of valve opening based on actual operating conditions and environmental factors, offering intelligent control and rapid response, thus addressing the issues of untimely manual operation and low control precision. Furthermore, the energy consumption analysis module optimizes energy allocation through system operation data analysis, reducing energy consumption and saving costs, thus resolving the serious energy waste problem in traditional systems. Finally, the connection between the safety protection module and various sensors and the intelligent controller enables real-time early warning and rapid handling of system anomalies, providing high safety performance and reliability, thus addressing the insufficient safety protection of traditional devices. Attached Figure Description

[0027] Figure 1 This is a perspective view of the overall structure of the automated control-based chilled water regulating device of the present invention.

[0028] Figure 2 This is a cross-sectional view of the overall structure of the automated control-based chilled water conditioning device of the present invention;

[0029] Figure 3 This is a perspective view of the geared motor and intelligent controller structure of the chilled water regulating device based on automated control according to the present invention.

[0030] Figure 4 This is a schematic diagram of the automated control-based chilled water conditioning system of the present invention.

[0031] In the diagram: 1. Valve body; 2. Chilled water pipe; 3. Sealing ring; 4. Flow channel; 5. Gear motor; 6. Drive gear; 7. Side frame; 8. Intelligent controller; 9. Temperature and humidity sensor; 10. Air quality sensor; 11. Valve disc; 12. Temperature sensor; 13. Pressure sensor; 14. Ultrasonic flow meter; 15. Handwheel; 16. Transmission teeth; 17. Transmission rod; 18. Data acquisition and preprocessing module; 19. Energy consumption analysis module; 20. Safety protection module; 21. Intelligent decision-making module; 22. Remote interaction module. Detailed Implementation

[0032] 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.

[0033] This invention provides a technical solution: a chilled water regulating device based on automated control. Please refer to [link / reference]. Figure 1 , Figure 2 , Figure 3 and Figure 4 ,include:

[0034] Valve body 1, with a flow channel 4 inside the valve body 1, and chilled water pipes 2 installed at both ends of the valve body 1 through flange structures.

[0035] The transmission mechanism is located on the top of the valve body 1. The transmission mechanism includes a geared motor 5 and a transmission rod 17. The geared motor 5 is fixed to the upper end face of the valve body 1 via a side frame 7. A drive gear 6 is fixed to the output end of the geared motor 5. The transmission rod 17 extends through the top of the valve body 1 into the flow channel 4. A valve disc 11 is fixed to one end of the transmission rod 17 inside the flow channel 4. The transmission rod 17 is provided with transmission teeth 16 on the outside, and the drive gear 6 is connected to the transmission teeth 16 in a transmission connection.

[0036] The detection unit includes an ultrasonic flow meter 14, a temperature sensor 12, and a pressure sensor 13 installed on the inner wall of the flow channel 4.

[0037] The intelligent controller 8 is fixed to the outer side of the side frame 7;

[0038] The environmental sensing module includes a temperature and humidity sensor 9 and an air quality sensor 10 fixed on the other side of the side frame 7. The intelligent controller 8 communicates with the external system through a wireless transmission module and can automatically control the opening of the valve disc 11 of the geared motor 5 based on the terminal load rate and environmental parameters to achieve dynamic matching of chilled water parameters.

[0039] Please see Figure 1 and Figure 2 A frame is provided on the upper end of the valve body 1 outside the transmission rod 17, and the transmission rod 17 is connected to the frame by a threaded connection.

[0040] Please see Figure 1 and Figure 2 A handwheel 15 is mounted on the top of the transmission rod 17, and the handwheel 15 is fixed to the transmission rod 17 by bolts.

[0041] Please see Figure 1 and Figure 2 The ultrasonic flow meter 14 is embedded in the inner wall of the flow channel 4 near the output end of the valve body 1. The temperature sensor 12 and the pressure sensor 13 are embedded in the inner wall of the flow channel 4. A sealing ring 3 is provided between the chilled water pipe 2 and the valve body 1.

[0042] An automated control-based chilled water conditioning system, based on the aforementioned automated control-based chilled water conditioning device, is characterized in that, please refer to... Figure 1 , Figure 2 , Figure 3 and Figure 4 ,include:

[0043] The data acquisition and preprocessing module 18 is connected to the detection unit and the environmental sensing module. It is used to collect data obtained by the ultrasonic flow meter 14, temperature sensor 12, pressure sensor 13, temperature and humidity sensor 9 and air quality sensor 10, and to perform filtering and calibration preprocessing operations on the data.

[0044] The intelligent decision-making module 21 is connected to the data acquisition and preprocessing module 18 and the intelligent controller 8. It can receive the preprocessed data and generate the corresponding valve opening adjustment command by combining the preset control algorithm and the terminal load rate model.

[0045] The remote interaction module 22 is connected to the intelligent controller 8, which can realize information interaction with external terminals and support remote viewing of system operation status and sending control commands;

[0046] The energy consumption analysis module 19, connected to the data acquisition and preprocessing module 18, is capable of statistically analyzing and evaluating the energy consumption data of the chilled water system and generating an energy consumption report.

[0047] The safety protection module 20 is connected to the intelligent controller 8 and various sensor modules. It is used to monitor abnormal conditions during system operation and issue early warnings. It also has overload protection and other functions.

[0048] Please see Figure 4The data acquisition and preprocessing module 18 sets the data acquisition frequency according to the system operation requirements, ranging from 1 to 10 times / second. During the preprocessing process, the Kalman filter algorithm is used to filter out noise data, and the drift error of the sensor is automatically calibrated to ensure the accuracy and stability of the data.

[0049] Please see Figure 4 The intelligent decision-making module 21 has multiple built-in control strategy models, including proportional-integral-derivative control model, fuzzy control model and neural network control model. It can automatically select the optimal control model to generate adjustment commands according to different terminal load rates and environmental parameter combinations, and the parameters of the control model can be continuously optimized through self-learning algorithms.

[0050] Please see Figure 4 The remote interaction module 22 uses an encrypted wireless communication protocol to communicate with external terminals, supports access from multiple terminals such as mobile APP and computer client, and can display parameters such as flow rate, temperature, and pressure of chilled water as well as system energy consumption data in real time. At the same time, it allows authorized users to remotely modify the control parameters and target settings of the intelligent controller 8.

[0051] Please see Figure 4 The energy consumption analysis module 19 performs statistical analysis on the system's daily, monthly, and annual energy consumption, calculates the energy consumption index per unit of cooling capacity, compares the energy consumption differences in different time periods, identifies energy consumption anomalies and analyzes the causes, provides data support for energy-saving optimization, and can predict future energy consumption trends based on historical energy consumption data.

[0052] Please see Figure 2 and Figure 4 The safety protection module 20 is equipped with a multi-level early warning mechanism. When it detects abnormal situations such as chilled water parameters exceeding the safe range, sensor failure, or communication interruption, it issues different levels of audible and visual alarm signals according to the severity of the abnormality and sends the abnormal information to the designated terminal through the remote interaction module. At the same time, in an emergency, it can automatically control the reduction motor 5 to adjust the valve disc 11 to a safe opening.

[0053] In this scheme: chilled water enters the flow channel 4 of valve body 1 through chilled water pipe 2. The ultrasonic flow meter 14, temperature sensor 12, and pressure sensor 13 in the detection unit monitor flow rate, temperature, and pressure data respectively. The temperature and humidity sensor 9 and air quality sensor 10 of the environmental sensing module collect external environmental parameters. The data acquisition and preprocessing module 18 collects the above data at a frequency of 1-10 times / second and filters noise and calibrates sensor drift errors using a Kalman filter algorithm. The preprocessed data is transmitted to the intelligent decision-making module 21, which combines a preset control algorithm and a terminal load rate model to perform control based on proportional-integral-derivative control models, fuzzy control models, and neural network control models. The optimal model is selected from the control model, and the valve disc 11 opening adjustment command is generated and sent to the intelligent controller 8. The intelligent controller 8 controls the operation of the reduction motor 5, and the drive gear 6 drives the transmission rod 17 to rotate through the transmission tooth 16. Since the transmission rod 17 is threaded with the frame, it can drive the valve disc 11 to move to adjust the valve disc 11 opening and realize dynamic matching of chilled water parameters. The remote interaction module 22 supports external terminals to view the system status and send commands. The energy consumption analysis module 19 performs statistical analysis on energy consumption data. The safety protection module 20 monitors abnormal situations and controls the reduction motor 5 to adjust the valve disc 11 to a safe opening in an emergency. The handwheel 15 can manually operate the transmission rod 17 when necessary.

[0054] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0055] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A chilled water regulating device based on automated control, characterized in that, include: The valve body (1) has a flow channel cavity (4) inside, and chilled water pipes (2) are installed at both ends of the valve body (1) through a flange structure. A transmission mechanism is provided on the top of the valve body (1). The transmission mechanism includes a geared motor (5) and a transmission rod (17). The geared motor (5) is fixed to the upper end face of the valve body (1) by a side frame (7). A drive gear (6) is fixed at the output end of the geared motor (5). The transmission rod (17) extends through the top of the valve body (1) into the flow channel (4). A valve disc (11) is fixed at one end of the transmission rod (17) inside the flow channel (4). The transmission rod (17) is provided with transmission teeth (16) on the outside. The drive gear (6) is connected to the transmission teeth (16). The detection unit includes an ultrasonic flow meter (14), a temperature sensor (12), and a pressure sensor (13) installed on the inner wall of the flow channel (4); The intelligent controller (8) is fixed to the outer side of the side frame (7); The environmental sensing module includes a temperature and humidity sensor (9) and an air quality sensor (10) fixed to the other side of the side frame (7).

2. The chilled water regulating device based on automatic control according to claim 1, characterized in that: The transmission rod (17) is provided with a frame at the upper end of the valve body (1) outside the frame, and the transmission rod (17) and the frame are connected by a threaded connection.

3. The chilled water regulating device based on automatic control according to claim 1, characterized in that: A handwheel (15) is mounted on the top of the transmission rod (17), and the handwheel (15) is fixed to the transmission rod (17) by bolts.

4. The chilled water regulating device based on automatic control according to claim 1, characterized in that: The ultrasonic flow meter (14) is embedded in the inner wall of the flow channel (4) near the output end of the valve body (1). The temperature sensor (12) and the pressure sensor (13) are embedded in the inner wall of the flow channel (4). A sealing ring (3) is provided between the chilled water pipe (2) and the valve body (1).

5. A chilled water conditioning system based on automated control, comprising a chilled water conditioning device based on automated control as described in any one of claims 1-4, characterized in that, include: The data acquisition and preprocessing module (18) is connected to the detection unit and the environmental sensing module and is used to collect data obtained by the ultrasonic flow meter (14), temperature sensor (12), pressure sensor (13), temperature and humidity sensor (9) and air quality sensor (10). The intelligent decision-making module (21) is connected to the data acquisition and preprocessing module (18) and the intelligent controller (8); The remote interaction module (22) is connected to the intelligent controller (8); The energy consumption analysis module (19) is connected to the data acquisition and preprocessing module (18); The safety protection module (20) is connected to the intelligent controller (8) and each sensor module.

6. A chilled water conditioning system based on automated control according to claim 5, characterized in that: The data acquisition frequency of the data acquisition and preprocessing module (18) is set according to the system operation requirements, ranging from 1 to 10 times / second. During the preprocessing process, the Kalman filter algorithm is used to filter the noise data.

7. A chilled water conditioning system based on automated control according to claim 5, characterized in that: The intelligent decision-making module (21) has multiple built-in control strategy models, including proportional-integral-derivative control model, fuzzy control model and neural network control model.

8. A chilled water conditioning system based on automated control according to claim 5, characterized in that: The remote interaction module (22) uses an encrypted wireless communication protocol to communicate with external terminals.

9. A chilled water conditioning system based on automated control according to claim 5, characterized in that: The energy consumption analysis module (19) performs statistical analysis on the daily, monthly and annual energy consumption of the system.

10. A chilled water conditioning system based on automated control according to claim 5, characterized in that: The safety protection module (20) is equipped with a multi-level early warning mechanism. When it detects abnormal situations such as chilled water parameters exceeding the safe range, sensor failure, or communication interruption, it issues different levels of audible and visual alarm signals according to the severity of the abnormality.

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