Heat exchange station control method, system and intelligent terminal

Abstract

The application relates to a heat exchange station control method and system and an intelligent terminal, and relates to the technical field of a heating system. The method comprises the following steps: obtaining a target water supply temperature and an actual mixing temperature; determining whether the actual mixing temperature is consistent with the target water supply temperature; if yes, the actual mixing temperature is continuously obtained for cyclic determination; if not, an actual water supply temperature and an actual return water temperature are obtained; the actual water supply temperature, the actual return water temperature and the target water supply temperature are analyzed to determine a target water supply valve opening degree and a target return water valve opening degree; a water supply valve on a preset water supply pipeline is controlled to be adjusted to the target water supply valve opening degree, and a return water valve on a preset return water pipeline is controlled to be adjusted to the target return water valve opening degree, so that water flow in the water supply pipeline and the return water pipeline enters a preset Venturi jet to be mixed. The application has the effect of improving the accuracy of the target water supply temperature and the valve opening degree.

Description

Technical Field

[0001] This application relates to the technical field of heating systems, and in particular to a heat exchange station control method, system and intelligent terminal. Background Technology

[0002] Heat exchange stations are an important part of centralized heating systems. Their main function is to transfer the heat from the high-temperature hot water or steam generated by the heat source to the low-temperature secondary circulating water through heat exchange equipment, and then deliver the heated secondary circulating water to the user end to provide the user with heating or hot water.

[0003] In related technologies, heat exchange stations determine the target water supply temperature based on outdoor temperature readings and user demand. When the outdoor temperature is low and user demand is high, the target water supply temperature is increased accordingly. Flow rate is controlled by adjusting valve opening; a larger valve opening increases flow rate and raises the water supply temperature, while a smaller valve opening decreases flow rate and lowers the water supply temperature, thus achieving water supply temperature regulation.

[0004] Regarding the aforementioned technologies, the heat loss caused by the heat exchange station at each stage of hot water delivery was not considered when determining the target water supply temperature. This resulted in the determined target water supply temperature failing to ensure that the actual indoor temperature reached the expected temperature when the hot water reached the user. Furthermore, insufficient reference parameters were used when determining the valve opening, leading to errors between the actual valve opening and the required opening, resulting in excessive or insufficient flow. Consequently, the actual output hot water temperature failed to reach the target water supply temperature, indicating room for improvement. Summary of the Invention

[0005] To improve the accuracy of target water supply temperature and valve opening, this application provides a heat exchange station control method, system, and intelligent terminal.

[0006] Firstly, this application provides a heat exchange station control method, which adopts the following technical solution: A heat exchange station control method, comprising: Obtain the target water supply temperature and the actual mixing temperature; Determine whether the actual mixing temperature matches the target water supply temperature; If they match, continue to obtain the actual mixing temperature and perform a cyclical judgment. If they are inconsistent, obtain the actual supply water temperature and the actual return water temperature; The actual water supply temperature, actual return water temperature, and target water supply temperature are analyzed to determine the target water supply valve opening and the target return water valve opening. The water supply valve on the preset water supply pipeline is adjusted to the target water supply valve opening, and the water return valve on the preset water return pipeline is adjusted to the target water return valve opening, so as to drive the water flow in the water supply pipeline and the water return pipeline into the preset Venturi jet to mix.

[0007] By adopting the above technical solution, when the actual mixing temperature is inconsistent with the target water supply temperature, the target water supply valve opening and the target water return valve opening are accurately calculated based on the actual water supply temperature, the actual return water temperature and the target water supply temperature. This adjusts the hot water flow rate in the water supply and return pipes, allowing the hot water output after mixing by the Venturi jet to mix again with the hot water in the water supply pipe. This enables the final water supply temperature to quickly and stably reach the target water supply temperature. Furthermore, through precise temperature control, the indoor temperature is uniformly increased and stabilized at the set target indoor temperature.

[0008] Optionally, the steps for obtaining the target water supply temperature include: To obtain a heat exchange station, you need to provide heat capacity and indoor temperature monitoring. The heat required by the heat exchange station and the preset number of water exchanges per cycle are analyzed to determine the heat required by the heat exchange station per cycle. The heat required for a single heat exchange station, the preset building air quality, the preset air specific heat capacity, and the indoor detection temperature are analyzed to determine the indoor temperature increase. The target water supply temperature is determined by analyzing the heat required to be provided by a single heat exchange station, the preset pipeline heat transfer coefficient, the preset pipeline heat transfer area, and the indoor temperature rise.

[0009] By adopting the above technical solutions, the required heat supply of the heat exchange station and the number of water exchanges per cycle are analyzed to obtain the required heat supply of the heat exchange station per cycle; the indoor temperature rise is obtained by analyzing the required heat supply of the heat exchange station per cycle, building air quality, air specific heat capacity, and indoor temperature; and the target water supply temperature is obtained by analyzing the required heat supply of the heat exchange station per cycle, pipeline heat transfer coefficient, pipeline heat transfer area, and indoor temperature rise. Thus, by precisely controlling the water supply temperature, energy loss during transmission is reduced, thereby achieving precise regulation of indoor temperature.

[0010] Optionally, the steps to obtain heat from the heat exchange station include: Obtain the initial indoor temperature and the measured outdoor temperature; The initial indoor temperature, the outdoor measured temperature, and the preset target indoor temperature are analyzed to determine the building's heat dissipation. The initial indoor temperature and the target indoor temperature are analyzed to determine the indoor temperature variation. The building air quality, indoor temperature rise, and air specific heat capacity were analyzed to determine the heat of temperature variation. Obtain the actual heat dissipation of personnel; The analysis of the heat generated, the actual heat dissipation by personnel, and the total heat dissipation is used to determine the heat that the heat exchange station needs to provide.

[0011] By adopting the above technical solution, the building heat dissipation is obtained by analyzing the initial indoor temperature, the outdoor detected temperature, and the preset target indoor temperature; the indoor temperature variation is obtained by analyzing the initial indoor temperature and the target indoor temperature; the temperature variation heat is obtained by analyzing the building air quality, the indoor temperature rise, and the air specific heat capacity; and the heat required to be provided by the heat exchange station is obtained by analyzing the heat rise, the actual heat dissipation of personnel, and the total heat dissipation. By considering the heat loss in multiple dimensions, the value of the heat required to be provided by the heat exchange station is made more accurate, thereby achieving precise control of the target water supply temperature of the heat exchange station.

[0012] Optionally, the steps of analyzing the initial indoor temperature, the outdoor measured temperature, and the preset target indoor temperature to determine the building's heat dissipation include: The initial indoor temperature, target indoor temperature, and preset temperature discrete parameters are analyzed to determine the heat dissipation indoor temperature. The indoor and outdoor temperatures of the heat dissipation chambers were analyzed to determine the average temperature difference between adjacent heat dissipation chambers. The average temperature difference between adjacent heat dissipation, the preset total heat transfer coefficient, and the preset discrete heat dissipation time are analyzed to determine the heat dissipation amount per temperature cycle. The heat dissipation from a single temperature event is analyzed to determine the building's heat dissipation.

[0013] By adopting the above technical solution, the heat dissipation indoor temperature is obtained by analyzing the initial indoor temperature, the target indoor temperature, and the temperature discrete parameters; the average temperature difference between adjacent heat dissipation sources is obtained by analyzing the heat dissipation indoor temperature and the outdoor detected temperature; the heat dissipation amount per heat cycle is obtained by analyzing the average temperature difference between adjacent heat dissipation sources, the total heat transfer coefficient, and the discrete heat dissipation time; and the heat dissipation amount per heat cycle is analyzed to accurately calculate the heat loss caused by changes in outdoor temperature, ensuring that the hot water output by the heat exchange station more accurately meets the actual heating demand.

[0014] Optionally, the steps of analyzing the actual supply water temperature, actual return water temperature, and target supply water temperature to determine the target supply water valve opening and target return water valve opening include: Obtain the total heat supply of the heat exchange station; The total heat supply of the heat exchange station is analyzed to determine the target mixing temperature of the ejector; The actual supply water temperature, actual return water temperature, jet nozzle target mixing temperature, and target supply water temperature are analyzed to determine the target supply water volumetric flow rate and the target return water volumetric flow rate. Obtain the pressure difference between the water supply valve and the return valve; The pressure difference of the water supply valve, the preset flow coefficient of the water supply valve, and the target water supply volume flow rate are analyzed to determine the target water supply valve opening. The pressure difference of the return water valve, the preset return water valve flow coefficient, and the target return water volume flow rate are analyzed to determine the target return water valve opening.

[0015] By adopting the above technical solution, the target water supply valve opening degree is obtained by analyzing the pressure difference of the water supply valve, the flow coefficient of the water supply valve, and the target water supply volume flow rate. Based on the target water supply valve opening degree, the water supply valve is controlled to adjust the hot water flow rate in the water supply pipeline. Similarly, the target return water valve opening degree is determined by analyzing the pressure difference of the return water valve, the flow coefficient of the return water valve, and the target return water volume flow rate. Based on the target return water valve opening degree, the return water valve is controlled to adjust the hot water flow rate in the return water pipeline, ensuring that the hot water in the water supply pipeline and the hot water in the return water pipeline are mixed in a suitable ratio, thereby making the hot water temperature output by the heat exchange station consistent with the target water supply temperature.

[0016] Optionally, the steps for analyzing the heat supplied by the heat exchange station to determine the target mixing temperature of the ejector include: Obtain the mass flow rate of water supplied to the heat exchange station and the total mass flow rate of water supplied to the heat exchange station; The total water supply mass flow rate and the water supply mass flow rate of the heat exchange station were analyzed to determine the water supply mass flow rate of the ejector. Obtain the supply and return temperature difference of the heat exchange station; The mass flow rate of water supplied to the heat exchange station, the preset specific heat capacity of water, and the supply and return temperature difference of the heat exchange station are analyzed to determine the heat capacity of the water supplied to the heat exchange station. The heat required by the heat exchange station and the heat supply water of the heat exchange station are analyzed to determine the target heat supply water of the jet injector; The specific heat capacity of water and the mass flow rate of the ejector water supply were analyzed to determine the heat capacity flow rate of the ejector. The target mixing temperature of the jet injector is determined by analyzing the jet injector heat capacity flow rate, actual water supply temperature, and target jet injector water supply heat.

[0017] By adopting the above technical solution, the target ejector water supply heat is obtained by analyzing the heat required to be provided by the heat exchange station and the heat supply heat of the heat exchange station; the ejector heat capacity flow rate is obtained by analyzing the specific heat capacity of water and the mass flow rate of the ejector water supply; the target mixing temperature of the ejector is obtained by analyzing the ejector heat capacity flow rate, the actual water supply temperature and the target ejector water supply heat. Based on the target mixing temperature of the ejector, the mixing process of the ejector is precisely adjusted to ensure that the temperature of the hot water mixed by the ejector and the hot water in the heating pipeline meets the heating demand.

[0018] Optionally, the steps for obtaining the mass flow rate of the water supplied to the heat exchange station and the total mass flow rate of the water supplied to the heat exchange station include: Obtain the volumetric flow rate of the water supply to the heat exchange station; The volumetric flow rate of the water supplied to the heat exchange station and the density corresponding to the preset water temperature were analyzed to determine the mass flow rate of the water supplied to the heat exchange station. The heat required by the heat exchange station, the specific heat capacity of the water, and the preset target supply and return water temperature difference are analyzed to determine the total supply water mass flow rate.

[0019] By adopting the above technical solution, the mass flow rate of the water supply to the heat exchange station is obtained by analyzing the volumetric flow rate and water temperature corresponding to density; the total mass flow rate of the water supply is obtained by analyzing the heat required to be provided by the heat exchange station, the specific heat capacity of the water, and the target supply and return water temperature difference. Combined with the mass flow rate of the water supply to the heat exchange station, the mass flow rate of the ejector is accurately calculated, thereby ensuring the reasonable allocation of hot water flow rate in the supply pipeline and the return pipeline.

[0020] Optionally, the steps of analyzing the actual supply water temperature, actual return water temperature, jet injector target mixing temperature, and target supply water temperature to determine the target supply water volumetric flow rate and target return water volumetric flow rate include: The target water supply temperature and the jet injector target mixing temperature are analyzed to determine the contribution difference of the water supply temperature. The target mixing temperature and the actual return water temperature of the jet injector are analyzed to determine the temperature difference that the return water needs to obtain. The contribution difference of supply water temperature and the temperature difference required for return water are analyzed to determine the basic heat drive value; The actual water supply temperature and the jet injector target mixing temperature are analyzed to determine the temperature difference that the water supply can provide. The effective temperature difference of the water supply is determined by analyzing the temperature difference provided by the water supply and the temperature contribution difference of the water supply. The target water supply volumetric flow rate is determined by analyzing the baseline heat drive value and the effective temperature difference of the water supply. The contribution difference of supply water temperature and the temperature difference that supply water can provide are analyzed to determine the total heat demand product of return water. The total heat demand volume of the return water and the effective temperature difference of the supply water are analyzed to determine the target return water volumetric flow rate.

[0021] By adopting the above technical solution, the target water supply volume flow rate is obtained by analyzing the basic heat drive value and the effective temperature difference of the water supply; the target return water volume flow rate is obtained by analyzing the total heat demand product of the return water and the effective temperature difference of the water supply. In this way, by optimizing the valve opening of the water supply pipe and the return water pipe, the hot water flow rate of both is adjusted to ensure that the water supply temperature is stable at the target value, thereby achieving precise control of indoor temperature and efficient operation of the heating system.

[0022] Secondly, this application provides a heat exchange station control system, which adopts the following technical solution: A heat exchange station control system, comprising: The acquisition module is used to acquire the actual mixing temperature, target supply water temperature, actual supply water temperature, and actual return water temperature. A memory for storing a program for a heat exchange station control method as described in any of the preceding claims; The processor and the program in the memory can be loaded and executed by the processor to implement a heat exchange station control method as described in any of the above.

[0023] By adopting the above technical solution, the processor loads and executes a program of a heat exchange station control method stored in the memory. The control acquisition module acquires a series of data related to the implementation of the heat exchange station control method. Thus, when the actual mixing temperature is inconsistent with the target supply water temperature, the target supply water valve opening and the target return water valve opening are accurately calculated based on the actual supply water temperature, the actual return water temperature, and the target supply water temperature. This adjusts the hot water flow rate in the supply and return water pipes, allowing the hot water output after mixing by the Venturi jet to mix again with the hot water in the supply water pipe. This enables the final supply water temperature to quickly and stably reach the target supply water temperature. Furthermore, through precise temperature control, the indoor temperature is uniformly increased and stabilized at the set target indoor temperature.

[0024] Thirdly, this application provides a smart terminal, which adopts the following technical solution: A smart terminal includes a memory and a processor, wherein the memory stores a computer program that can be loaded by the processor and executed as described in any of the preceding claims for a heat exchange station control method.

[0025] By adopting the above technical solution, and by operating the intelligent terminal, the processor loads and executes a computer program for a heat exchange station control method stored in the memory. When the actual mixing temperature is inconsistent with the target water supply temperature, the target water supply valve opening and the target water return valve opening are accurately calculated based on the actual water supply temperature, the actual return water temperature, and the target water supply temperature. This adjusts the hot water flow rate in the water supply and return pipes, allowing the hot water output after mixing by the Venturi jet to mix again with the hot water in the water supply pipe. This ensures that the final water supply temperature quickly and stably reaches the target water supply temperature. Furthermore, through precise temperature control, the indoor temperature is uniformly increased and stabilized at the set target indoor temperature.

[0026] In summary, this application includes at least one of the following beneficial technical effects: 1. When the actual mixing temperature is inconsistent with the target water supply temperature, the target water supply valve opening and the target water return valve opening are accurately calculated based on the actual water supply temperature, the actual water return temperature and the target water supply temperature. This adjusts the hot water flow rate in the water supply and return pipes, allowing the hot water output after mixing by the Venturi jet to mix again with the hot water in the water supply pipe. This makes the final water supply temperature reach the target water supply temperature quickly and stably. In turn, through precise temperature control, the indoor temperature is evenly increased and stabilized at the set target indoor temperature. 2. By analyzing the initial indoor temperature, the outdoor measured temperature, and the preset target indoor temperature, the building heat dissipation is obtained; by analyzing the initial indoor temperature and the target indoor temperature, the indoor temperature variation is obtained; by analyzing the building air quality, the indoor temperature rise, and the air specific heat capacity, the temperature variation heat is obtained; by analyzing the temperature rise heat, the actual heat dissipation of personnel, and the heat dissipation, the heat required to be provided by the heat exchange station is obtained. By considering the heat loss in multiple dimensions, the value of the heat required to be provided by the heat exchange station is made more accurate, thereby achieving precise control of the target water supply temperature of the heat exchange station. 3. By analyzing the pressure difference, flow coefficient, and target volumetric flow rate of the water supply valve, the target opening degree of the water supply valve is obtained. Based on this target opening degree, the water supply valve is controlled to adjust the hot water flow rate in the water supply pipeline. Similarly, by analyzing the pressure difference, flow coefficient, and target volumetric flow rate of the return water valve, the target opening degree of the return water valve is determined. Based on this opening degree, the return water valve is controlled to adjust the hot water flow rate in the return pipeline, ensuring that the hot water in the water supply and return pipelines mix in a suitable ratio, thereby ensuring that the output hot water temperature of the heat exchange station matches the target water supply temperature. Attached Figure Description

[0027] Figure 1 This is a flowchart of a heat exchange station control method according to an embodiment of this application.

[0028] Figure 2 This is a flowchart of the steps for obtaining the target water supply temperature in an embodiment of this application.

[0029] Figure 3 This is a flowchart of the steps for obtaining the heat required by the heat exchange station in the embodiments of this application.

[0030] Figure 4 This is a flowchart illustrating the steps in this application embodiment to analyze the initial indoor temperature, the outdoor detected temperature, and the preset target indoor temperature to determine the building's heat dissipation.

[0031] Figure 5 This is a flowchart illustrating the steps in this application embodiment to analyze the actual water supply temperature, the actual return water temperature, and the target water supply temperature to determine the target water supply valve opening and the target return water valve opening.

[0032] Figure 6 This is a flowchart of the steps in this application embodiment to analyze the heat that the heat exchange station needs to provide in order to determine the target mixing temperature of the jet injector.

[0033] Figure 7 This is a flowchart of the steps for obtaining the mass flow rate of water supplied to the heat exchange station and the total mass flow rate of water supplied to the heat exchange station in the embodiments of this application.

[0034] Figure 8This is a flowchart of the steps in this application embodiment to analyze the actual water supply temperature, the actual return water temperature, the jet injector target mixing temperature, and the target water supply temperature to determine the target water supply volume flow rate and the target return water volume flow rate. Detailed Implementation

[0035] To make the purpose, technical solution, and advantages of this application clearer, the following description is provided in conjunction with the appendix. Figures 1 to 8 The present application will be further described in detail below with reference to embodiments. It should be understood that the specific embodiments described herein are for illustrative purposes only and are not intended to limit the scope of the application.

[0036] This application discloses a heat exchange station control method, which mainly addresses the problem of improving the accuracy of target water supply temperature and valve opening. Specifically, it discloses a heat exchange station, environmental monitoring equipment, pipeline monitoring equipment, an electric regulating valve, and a processing terminal. The processing terminal is communicatively connected to the environmental monitoring equipment, pipeline monitoring equipment, and electric regulating valve to achieve data interaction and control. After the environmental monitoring equipment and pipeline monitoring equipment send environmental data and pipeline data to the processing terminal, the processing terminal analyzes and calculates the environmental data and pipeline data to obtain the target water supply temperature. It then compares the actual mixing temperature with the target water supply temperature. If they are inconsistent, the processing terminal adjusts the electric regulating valve according to the target water supply temperature. The aim is to accurately allocate the flow rate of the supply and return water pipelines by reasonably controlling the electric regulating valve, so that the hot water after efficient mixing by the Venturi jet mixer is re-mixed with the hot water in the supply pipeline, ultimately ensuring that the actual mixing temperature matches the target water supply temperature.

[0037] Reference Figure 1 This application discloses a heat exchange station control method, including the following steps: Step S100: Obtain the target water supply temperature and the actual mixing temperature.

[0038] The target water supply temperature refers to the actual temperature that the hot water in the heat exchange station's water supply pipeline needs to reach. For specific methods of obtaining this temperature, please refer to [reference needed]. Figure 2 These steps ensure that the hot water delivered by the heat exchange station reaches the user's indoor temperature at the set indoor temperature after it arrives at the user's end.

[0039] The actual mixing temperature refers to the measured temperature of the hot water in the water supply pipeline of the heat exchange station. In one embodiment, a thermometer is installed in the water supply pipeline of the heat exchange station, and the temperature of the hot water in the pipe is measured in real time. The temperature of the hot water in the pipe is then the actual mixing temperature.

[0040] A heat exchange station is a facility that transfers heat generated by a heat source to the user through heat exchange equipment to meet the heating needs of a building.

[0041] The water supply pipeline of a heat exchange station refers to the pipeline that delivers hot water at the target supply temperature to the user end, including the water supply pipeline inside the heat exchange station, the water supply pipeline outside the heat exchange station, and the indoor water supply pipeline at the user end.

[0042] Step S101: Determine whether the actual mixing temperature is consistent with the target water supply temperature.

[0043] The system determines whether the actual mixing temperature is equal to the target water supply temperature by processing the terminal, thereby determining whether the opening of the electric regulating valve needs to be adjusted.

[0044] An electric regulating valve is a type of valve that can adjust the valve opening according to signals from a control system, thereby achieving precise control of fluid flow. Electric regulating valves include water supply valves and return valves. The water supply valve is installed in the water supply pipeline of the heat exchange station, and the return valve is installed in the return pipeline of the heat exchange station.

[0045] Water supply pipelines refer to the pipelines in a heat exchange station that connect the heat source and the heat exchange station, as well as the pipelines used to transport hot water between different devices within the heat exchange station.

[0046] The return water pipeline refers to the pipeline in a heating system that returns the low-temperature water used by the user to the heat exchange station.

[0047] Step S1011: If they match, continue to obtain the actual mixing temperature and perform cyclic judgment.

[0048] If the processing terminal determines that the actual mixing temperature is equal to the target water supply temperature, it means that the hot water in the heat exchange station's water supply pipeline can bring the user's indoor temperature to the set indoor temperature after being delivered to the user's end. Therefore, the actual mixing temperature is continuously acquired and compared to continuously monitor the water supply process of the heat exchange station.

[0049] Step S1012: If they are inconsistent, obtain the actual supply water temperature and the actual return water temperature.

[0050] If the processing terminal determines that the actual mixing temperature is not equal to the target water supply temperature, it means that the hot water in the heat exchange station's water supply pipeline cannot bring the user's indoor temperature to the set indoor temperature after being delivered to the user's end. Therefore, obtaining the actual water supply temperature and the actual return water temperature provides data support for subsequent adjustment of the opening of the electric regulating valve.

[0051] The actual water supply temperature refers to the temperature of the hot water in the water supply pipe. In one embodiment, a thermometer is installed in the water supply pipe and the temperature of the hot water in the pipe is measured in real time. The temperature of the hot water in the pipe is then the actual water supply temperature.

[0052] The actual return water temperature refers to the temperature of the hot water in the return water pipe. In one embodiment, a thermometer is installed in the return water pipe and the temperature of the hot water in the pipe is measured in real time. The temperature of the hot water in the pipe is then the actual return water temperature.

[0053] Step S10121: Analyze the actual water supply temperature, the actual return water temperature, and the target water supply temperature to determine the target water supply valve opening and the target return water valve opening.

[0054] The target supply water valve opening refers to the required valve opening of the supply water valve, and the target return water valve opening refers to the required valve opening of the return water valve. After obtaining the actual supply water temperature and the actual return water temperature at the treatment terminal, the treatment terminal determines the target supply water valve opening and the target return water valve opening based on the actual supply water temperature, the actual return water temperature, and the target supply water temperature. The specific method is described in [reference needed]. Figure 5 The steps are to adjust the flow rate of hot water in the supply and return water pipes so that the actual mixing temperature is equal to the target supply water temperature.

[0055] Step S10122: Control the water supply valve on the preset water supply pipeline to adjust to the target water supply valve opening, and control the return valve on the preset return water pipeline to adjust to the target return water valve opening, so as to drive the water flow in the water supply pipeline and the return water pipeline into the preset Venturi jet to mix.

[0056] Specifically, the processing terminal adjusts the opening of the water supply valve according to the target water supply valve opening, and then adjusts the opening of the return water valve according to the target return water valve opening, thereby adjusting the hot water flow in the water supply and return water pipes. This changes the ratio of hot water flowing into the Venturi jet injector from the water supply pipe to the hot water in the return water pipe, so that the hot water output after mixing by the Venturi jet injector can reach the target water supply temperature after mixing with the hot water in the water supply pipe.

[0057] The water supply pipes, water supply valves, and return valves in this step are the same as those in step S101 above, and will not be described again here.

[0058] A Venturi jet injector is a device designed based on the Venturi effect that can draw in and mix liquids and finally output liquids.

[0059] Reference Figure 2 The steps to obtain the target water supply temperature include: Step S200: Obtain the heat supply and indoor temperature from the heat exchange station.

[0060] The heat required by the heat exchange station refers to the heat that the water pipeline of the heat exchange station needs to deliver to the user end. For specific methods of obtaining this heat, please refer to [link / reference needed]. Figure 3 This process provides data support for subsequently determining the target water supply temperature.

[0061] Indoor temperature refers to the actual indoor temperature at the user's location. It is measured by environmental monitoring equipment.

[0062] Environmental monitoring equipment refers to a device consisting of an indoor thermometer, an outdoor thermometer, and a communication module, used to acquire the indoor and outdoor temperatures of users in real time.

[0063] Step S201: Analyze the heat required by the heat exchange station and the preset number of water exchanges per cycle to determine the heat required by the heat exchange station per cycle.

[0064] The cycle water exchange count refers to the number of times within one cycle the heat exchange station needs to supply water to the user and then return the used low-temperature water to the heat exchange station. The cycle water exchange count is obtained by dividing the cycle time by the round-trip time of a single hot water supply through the processing terminal.

[0065] The heat required to be provided by a single heat exchange station refers to the heat that the water supply pipeline of the heat exchange station needs to deliver to the user end during one water exchange process. The heat required to be provided by the heat exchange station is obtained by dividing the heat required to be provided by the heat exchange station by the number of water exchanges in the cycle through the processing terminal.

[0066] Step S202: Analyze the heat required to be provided by a single heat exchange station, the preset building air quality, the preset air specific heat capacity, and the indoor detection temperature to determine the indoor temperature increase.

[0067] Building air quality refers to the total mass of air inside a building. Operators obtain the indoor unit layout data from users and transmit the corresponding indoor volume to the processing terminal via a communication module. The processing terminal multiplies the indoor volume by the building air quality per unit volume to obtain the building air quality. Unit building air quality refers to the mass of air per unit volume inside the building, expressed as 1.2 kg / m³. 3 For example.

[0068] The specific heat capacity of air refers to the amount of heat that needs to be absorbed or released to change the temperature of a unit mass of air by 1 degree Celsius.

[0069] Indoor temperature rise refers to the temperature that the user's indoor temperature needs to reach each time the heat exchange station changes water. This temperature is obtained through a processing terminal and calculated using a formula. The indoor temperature increase is calculated using the formula, where, This refers to raising the indoor temperature. This refers to indoor temperature measurement. This refers to the amount of heat that a single heat exchange station needs to provide. This refers to the specific heat capacity of air. Taking 1005 J / (kg·K) as an example, This refers to building air quality.

[0070] Step S203: Analyze the heat required to be provided by a single heat exchange station, the preset pipeline heat transfer coefficient, the preset pipeline heat transfer area, and the indoor temperature increase to determine the target water supply temperature.

[0071] The heat transfer coefficient of a pipeline refers to the amount of heat exchanged between the fluid and the wall surface per unit time and per unit area due to the temperature difference. It is determined by the operator based on the actual conditions of the heat exchange pipeline.

[0072] The heat exchange area of ​​a pipe refers to the effective surface area where heat exchange occurs between the pipe and the fluid. Operators determine the length and outer diameter of the indoor pipes at the user's end based on the information provided and transmit this data to the processing terminal via a communication module. The processing terminal then processes this data according to the formula... The heat exchange area of ​​the pipe is calculated, where, This refers to the heat exchange area of ​​the pipe. It refers to pi, in For example, =3.14, This refers to the outer diameter of the indoor pipes at the user end. This refers to the length of the indoor pipes at the user end.

[0073] The target water supply temperature in this step is the same as the target water supply temperature in step S100 above. The acquired data is processed by the processing terminal according to the formula. The target water supply temperature is obtained through calculation, where, This refers to the target water supply temperature. This refers to raising the indoor temperature. This refers to the amount of heat that a single heat exchange station needs to provide. This refers to the heat transfer coefficient of the pipeline, in terms of... =300W / (m 2 For example, K), This refers to the heat exchange area of ​​the pipeline.

[0074] Reference Figure 3 The steps required to obtain heat from a heat exchange station include: Step S300: Obtain the initial indoor temperature and the outdoor detection temperature.

[0075] The initial indoor temperature refers to the indoor temperature at the user end before hot water is delivered to the heat exchange station. The initial indoor temperature is detected by environmental monitoring equipment and transmitted to the processing terminal via a communication module, providing data support for determining the heat required by the heat exchange station.

[0076] Outdoor temperature refers to the actual outdoor temperature at the user's location. The outdoor temperature is detected by environmental monitoring equipment and transmitted to the processing terminal via a communication module, providing data support for determining the heat required by the heat exchange station.

[0077] Step S301: Analyze the initial indoor temperature, the outdoor detected temperature, and the preset target indoor temperature to determine the building's heat dissipation.

[0078] The target indoor temperature refers to the actual indoor temperature that the user needs to achieve, for example, 30℃.

[0079] Building heat loss refers to the heat lost from indoors to outdoors. The building heat loss is obtained by analyzing the initial indoor temperature, the detected outdoor temperature, and the target indoor temperature at the processing terminal. For specific methods of obtaining this information, please refer to [link / reference]. Figure 4 These steps provide data support for determining the heat required by the heat exchange station.

[0080] Step S302: Analyze the initial indoor temperature and the target indoor temperature to determine the indoor temperature variation.

[0081] The indoor temperature variation refers to the temperature difference between the initial indoor temperature and the target indoor temperature. The indoor temperature variation is obtained by subtracting the initial indoor temperature from the target indoor temperature through the processing terminal.

[0082] Step S303: Analyze the building air quality, indoor temperature rise, and air specific heat capacity to determine the heat of temperature change; Among them, variable temperature heat refers to the heat required for the indoor temperature at the user end to rise from the initial indoor temperature to the target indoor temperature, which is processed by the terminal according to the formula. The heat of temperature variation is calculated, where, It refers to variable temperature heat. This refers to the specific heat capacity of air. Taking 1005 J / (kg·K) as an example, This refers to building air quality. This refers to raising the indoor temperature.

[0083] Step S304: Obtain the actual heat dissipation of personnel.

[0084] The actual heat dissipation of personnel refers to the total heat dissipation of personnel indoors at the user terminal. This is determined by the operator obtaining the number of personnel indoors at the user terminal and transmitting it to the processing terminal via the communication module, according to the formula... The actual heat dissipation of personnel is calculated, where, This refers to the actual heat dissipation of personnel. This refers to the average heat dissipation per person indoors at the user end, in terms of Taking 150W / person as an example, This refers to the average indoor heat consumption per user. Taking 30W / person as an example, This refers to the number of people indoors at the user's location.

[0085] Step S305: Analyze the heat generated by the temperature rise, the actual heat dissipation of personnel, and the total heat dissipation to determine the heat that the heat exchange station needs to provide.

[0086] In this step, the heat exchange station needs to provide the same amount of heat as the heat exchange station in step S200 above. The heat required to be provided by the heat exchange station is obtained by adding the heat of heating, the actual heat dissipation of personnel, and the heat dissipation through the processing terminal.

[0087] Reference Figure 4 The steps for determining building heat dissipation by analyzing the initial indoor temperature, the outdoor measured temperature, and the preset target indoor temperature include: Step S400: Analyze the initial indoor temperature, the target indoor temperature, and the preset temperature discrete parameters to determine the heat dissipation indoor temperature.

[0088] Among them, the temperature discrete parameter refers to the number of times the temperature is adjusted. It is obtained by dividing the total duration of the temperature deviation within the set period by the single adjustment trigger interval through the processing terminal.

[0089] The indoor temperature for heat dissipation refers to the instantaneous indoor temperature at the user end, which is a discrete temperature parameter. This temperature is determined by the processing terminal using the formula... The temperature inside the heat dissipation chamber is calculated, where, This refers to the temperature inside the heat dissipation chamber. This refers to the target indoor temperature. This refers to the initial indoor temperature. This refers to the temperature discrete parameter. This refers to the temperature inside the room during the last heat dissipation.

[0090] Step S401: Analyze the indoor temperature and outdoor temperature of the heat dissipation room to determine the average temperature difference between adjacent heat dissipation rooms.

[0091] The average temperature difference between adjacent heat dissipation points refers to the temperature difference between the indoor and outdoor areas at the user end in a discrete temperature parameter. The average temperature difference between adjacent heat dissipation points is obtained by subtracting the outdoor detected temperature from the indoor temperature of the heat dissipation point through the processing terminal.

[0092] Step S402: Analyze the average temperature difference between adjacent heat dissipation, the preset total heat transfer coefficient, and the preset discrete heat dissipation time to determine the heat dissipation amount per temperature cycle.

[0093] The overall heat transfer coefficient refers to the amount of heat transferred per unit time through a unit area of ​​building envelope. Building envelope refers to the structures or components that separate the indoor and outdoor environments of a building, such as walls, windows, and roofs.

[0094] Discrete heat dissipation time refers to the time interval corresponding to the discrete temperature parameters during temperature regulation.

[0095] Single-cycle heat loss refers to the amount of heat lost from indoor to outdoor temperatures within a given time interval. This heat loss is calculated by the processing terminal using the formula... The heat dissipation in a single temperature event is calculated, where, This refers to the amount of heat dissipated in a single heat exchange. This refers to the temperature discrete parameter. This refers to the overall heat transfer coefficient. This refers to the average temperature difference between adjacent heat dissipation points. This refers to discrete heat dissipation time.

[0096] Step S403: Analyze the heat dissipation of a single temperature event to determine the building's heat dissipation.

[0097] The building heat dissipation in this step is the same as that in step S301 above, and is processed by the terminal according to the formula. The building heat dissipation is calculated, where, This refers to the building's heat dissipation. This refers to the temperature discrete parameter. This refers to the amount of heat dissipated in a single temperature event.

[0098] Reference Figure 5 The steps for analyzing the actual supply water temperature, actual return water temperature, and target supply water temperature to determine the target supply water valve opening and target return water valve opening include: Step S500: Obtain the total heat supply of the heat exchange station.

[0099] The total heat supply of the heat exchange station refers to the total heat delivered by the water pipeline of the heat exchange station to the user end. The heat that the heat exchange station needs to provide is determined as the total heat supply of the heat exchange station through the processing terminal, thereby providing data support for the subsequent calculation of the target water supply valve opening and the target return water valve opening.

[0100] Step S501: Analyze the total heat supply of the heat exchange station to determine the target mixing temperature of the jet injector.

[0101] The target mixing temperature of the ejector refers to the actual temperature that the supply and return water pipes should reach after mixing in the Venturi ejector. The treatment terminal determines the target mixing temperature of the ejector based on the total heat supply of the heat exchange station; the specific method for obtaining this temperature is described in [reference needed]. Figure 6 This process ensures that the hot water output after mixing with the hot water in the supply pipe reaches the target supply temperature.

[0102] Step S502: Analyze the actual supply water temperature, actual return water temperature, jet injector target mixing temperature and target supply water temperature to determine the target supply water volumetric flow rate and target return water volumetric flow rate.

[0103] The target supply water volumetric flow rate refers to the volumetric flow rate of hot water that should be maintained in the supply water pipeline, and the target return water volumetric flow rate refers to the volumetric flow rate of hot water that should be maintained in the return water pipeline. After determining the target mixing temperature and target supply water temperature of the ejector, the treatment terminal determines the target supply water volumetric flow rate and target return water volumetric flow rate based on the actual supply water temperature and actual return water temperature. The specific method is described in [reference needed]. Figure 8 This process provides data support for subsequent calculations of the target water supply valve opening and the target return water valve opening.

[0104] Step S503: Obtain the pressure difference between the water supply valve and the return valve.

[0105] Among them, the pressure difference of the water supply valve refers to the pressure difference before and after the water supply valve. The pressure value before and after the water supply valve is measured by the pipeline detection equipment and the data is transmitted to the processing terminal. The processing terminal calculates the pressure difference before and after the valve.

[0106] The pressure difference of the return water valve refers to the pressure difference before and after the return water valve. The pressure values ​​before and after the return water valve are measured by pipeline detection equipment and the data is transmitted to the processing terminal. The processing terminal calculates the pressure difference before and after the return water valve.

[0107] Pipeline inspection equipment refers to equipment consisting of thermometers, temperature transmitters, pressure gauges, pressure transmitters, flow meters, and communication modules, used to acquire real-time information on the internal temperature, flow rate, valve pressure, and water flow rate of pipelines.

[0108] The water supply valve and return valve in this step are the same as those in step S101 above, and will not be described again here.

[0109] Step S504: Analyze the pressure difference of the water supply valve, the preset flow coefficient of the water supply valve, and the target water supply volume flow rate to determine the target water supply valve opening.

[0110] The water supply valve flow coefficient is a quantitative parameter that measures the flow capacity of hot water per unit time when the water supply valve is fully open. Operators obtain the water supply valve flow coefficient by consulting the water supply valve data manual and transmit the data to the processing terminal via the communication module to provide data support for subsequent calculations of the target water supply valve opening.

[0111] The target water supply valve opening in this step is consistent with the target water supply valve opening in step S10121 above. The processing terminal then uses the formula... The target water supply valve opening is calculated, where, This refers to the target water supply valve opening degree. This refers to the target water supply volumetric flow rate. This refers to the flow coefficient of the water supply valve. This refers to the pressure difference of the water supply valve.

[0112] Step S505: Analyze the pressure difference of the return water valve, the preset return water valve flow coefficient, and the target return water volume flow rate to determine the target return water valve opening.

[0113] The return water valve flow coefficient is a quantitative parameter that measures the flow capacity of hot water per unit time when the return water valve is fully open. The return water valve flow coefficient is obtained by the operator by consulting the return water valve data manual and the data is transmitted to the processing terminal through the communication module to provide data support for subsequent calculation of the target return water valve opening.

[0114] The target return water valve opening in this step is consistent with the target return water valve opening in step S10121 above. The processing terminal then uses the formula... The target return water valve opening is calculated, where, This refers to the target return water valve opening. This refers to the target return water volumetric flow rate. This refers to the flow coefficient of the return water valve. This refers to the pressure difference of the return water valve.

[0115] Reference Figure 6 The steps for analyzing the heat supplied by the heat exchange station to determine the target mixing temperature of the jet injector include: Step S600: Obtain the mass flow rate of water supplied to the heat exchange station and the total mass flow rate of water supplied to the heat exchange station.

[0116] Among them, the mass flow rate of water supplied by the heat exchange station refers to the mass of water passing through the water supply pipeline per unit time.

[0117] The total mass flow rate of water supplied by a heat exchange station refers to the mass of water passing through the water supply pipeline per unit time when the hot water temperature is the target supply temperature.

[0118] For specific methods to obtain the mass flow rate of water supplied to the heat exchange station and the total mass flow rate of water supplied to the heat exchange station, please refer to [the relevant documentation]. Figure 7 This process provides data support for subsequently determining the target mixing temperature of the jet injector.

[0119] Step S601: Analyze the total water supply mass flow rate and the water supply mass flow rate of the heat exchange station to determine the water supply mass flow rate of the ejector.

[0120] The mass flow rate of water supplied by the jet injector refers to the mass of water passing through the water supply pipeline per unit time when the hot water mixed by the Venturi jet injector reaches the target temperature. The mass flow rate of water supplied by the jet injector is obtained by subtracting the mass flow rate of water supplied by the heat exchange station from the total mass flow rate of water supplied by the heat exchange station through the treatment terminal.

[0121] Step S602: Obtain the supply and return temperature difference of the heat exchange station.

[0122] The supply and return temperature difference of the heat exchange station refers to the temperature difference between the hot water in the supply pipeline and the return pipeline of the same level. The supply and return temperature difference of the heat exchange station is obtained by measuring the hot water temperature in the supply pipeline and the hot water temperature in the return pipeline of the same level through pipeline detection equipment and transmitting the data to the processing terminal. The processing terminal subtracts the hot water temperature in the return pipeline of the same level from the hot water temperature in the supply pipeline.

[0123] A return water pipeline of the same level refers to a pipeline with the same pressure rating as the supply water pipeline, used to send used water from the next level pipeline back to the heat source for reheating or mixing.

[0124] Step S603: Analyze the mass flow rate of the water supplied to the heat exchange station, the preset specific heat capacity of the water, and the supply and return temperature difference of the heat exchange station to determine the heat capacity of the water supplied to the heat exchange station.

[0125] Among them, the heat supply heat of the heat exchange station refers to the heat that the hot water in the water supply pipeline can provide, which is processed by the treatment terminal according to the formula. The heat supply capacity of the heat exchange station is calculated, where, This refers to the heat output of the water supplied by the heat exchange station. This refers to the mass flow rate of water supplied by the heat exchange station. This refers to the specific heat capacity of water, in... Taking 4.18 J / (g·℃) as an example, This refers to the supply and return temperatures of the heat exchange station.

[0126] Step S604: Analyze the heat required by the heat exchange station and the heat supply water of the heat exchange station to determine the target jet ejector heat supply water.

[0127] The target jet ejector water supply heat refers to the actual heat required after the water supply and return pipes are mixed in the Venturi jet ejector. The target jet ejector water supply heat is obtained by subtracting the heat required by the heat exchange station from the heat supplied by the heat exchange station through the treatment terminal.

[0128] Step S605: Analyze the specific heat capacity of water and the mass flow rate of the ejector water supply to determine the heat capacity flow rate of the ejector.

[0129] The jet heat capacity flow rate refers to the heat transfer rate required for the hot water flow to change temperature by 1°C in the heat exchanger. The jet heat capacity flow rate is obtained by multiplying the specific heat capacity of the water and the mass flow rate of the water supplied by the jet at the treatment terminal.

[0130] Step S606: Analyze the jet injector heat capacity flow rate, actual water supply temperature, and target jet injector water supply heat to determine the target mixing temperature of the jet injector.

[0131] In this step, the target mixing temperature of the jet injector is the same as the target mixing temperature of the jet injector in step S501 above, and is determined by the processing terminal according to the formula. The target mixing temperature of the jet injector is obtained through calculation, where, This refers to the target mixing temperature of the jet injector. This refers to the actual water supply temperature. This refers to the heat supplied by the target jet injector. This refers to the heat capacity flow rate of the ejector.

[0132] Reference Figure 7 The steps to obtain the mass flow rate of water supplied to the heat exchange station and the total mass flow rate of water supplied to the heat exchange station include: Step S700: Obtain the volumetric flow rate of the water supply to the heat exchange station.

[0133] The volumetric flow rate of water supplied to the heat exchange station refers to the volume of water passing through the water supply pipeline per unit time. The volumetric flow rate of water supplied to the heat exchange station is obtained by detecting the water supply pipeline through pipeline detection equipment, and the data is transmitted to the processing terminal to provide data support for subsequent calculation of the mass flow rate of water supplied to the heat exchange station.

[0134] Step S701: Analyze the volumetric flow rate of the water supplied to the heat exchange station and the preset density corresponding to the water temperature to determine the mass flow rate of the water supplied to the heat exchange station.

[0135] In this step, the mass flow rate of the heat exchange station water supply is the same as that in step S600 above. The mass flow rate of the heat exchange station water supply is obtained by multiplying the volumetric flow rate of the heat exchange station water supply and the density corresponding to the water temperature through the processing terminal.

[0136] Water temperature-corresponding density refers to the density value of water at a specific temperature. Operators can obtain the water temperature-corresponding density by looking up the water temperature-corresponding density table based on the water temperature in the water supply pipeline.

[0137] Step S702: Analyze the heat required by the heat exchange station, the specific heat capacity of the water, and the preset target supply and return water temperature difference to determine the total supply water mass flow rate.

[0138] The total water supply mass flow rate in this step is the same as the total water supply mass flow rate in step S600 above, and the treatment terminal uses the formula... The total water supply mass flow rate is calculated, where, This refers to the total water supply mass flow rate. This refers to the heat that the heat exchange station needs to provide. This refers to the specific heat capacity of water, in... Taking 4.18 J / (g·℃) as an example, This refers to the target supply and return water temperature difference.

[0139] The target supply and return water temperature difference refers to the actual temperature difference that the hot water in the supply and return water pipes needs to reach. For example, at 20℃.

[0140] Reference Figure 8 The steps for determining the target supply water volumetric flow rate and target return water volumetric flow rate by analyzing the actual supply water temperature, actual return water temperature, jet injector target mixing temperature, and target supply water temperature include: Step S800: Analyze the target water supply temperature and the jet injector target mixing temperature to determine the contribution difference of the water supply temperature.

[0141] The water supply temperature contribution difference refers to the temperature change required when the hot water in the water supply pipe mixes with the hot water output from the Venturi jet. The water supply temperature contribution difference is obtained by subtracting the target mixing temperature of the jet from the target water supply temperature through the treatment terminal.

[0142] Step S801: Analyze the target mixing temperature of the jet injector and the actual return water temperature to determine the temperature difference that the return water needs to obtain.

[0143] The required temperature difference for return water refers to the temperature change required for the return water pipe to reach the target mixing temperature of the ejector. The required temperature difference for return water is obtained by subtracting the actual return water temperature from the target mixing temperature of the ejector through the treatment terminal.

[0144] Step S802: Analyze the difference in supply water temperature contribution and the difference in return water temperature required to determine the basic heat drive value.

[0145] The basic heat drive value refers to the heat matching value between the hot water in the water supply pipe and the hot water output by the Venturi jet. The basic heat drive value is obtained by multiplying the difference in supply water temperature contribution and the temperature difference required for return water by the processing terminal.

[0146] Step S803: Analyze the actual water supply temperature and the jet injector target mixing temperature to determine the temperature difference that the water supply can provide.

[0147] The temperature difference that can be provided by the water supply refers to the remaining temperature that can be provided after the hot water in the supply pipe and the hot water in the return pipe are mixed. The actual water supply temperature is then converted into the target mixing temperature by the gas jet injector through the treatment terminal.

[0148] Step S804: Analyze the available temperature difference and the temperature contribution difference of the water supply to determine the effective temperature difference of the water supply.

[0149] The effective temperature difference of water supply refers to the effective temperature difference that the hot water in the water supply pipe can actually be used to heat the hot water in the return water pipe. The effective temperature difference of water supply is obtained by subtracting the temperature contribution difference of water supply from the temperature difference that water supply can provide through the treatment terminal.

[0150] Step S805: Analyze the basic heat drive value and the effective temperature difference of the water supply to determine the target water supply volumetric flow rate.

[0151] In this step, the target water supply volumetric flow rate is the same as that in step S502 above. The target water supply volumetric flow rate is obtained by dividing the basic heat drive value and the effective temperature difference of the water supply through the processing terminal.

[0152] Step S806: Analyze the difference in supply water temperature contribution and the difference in supply water available temperature to determine the total heat demand product of the return water.

[0153] The total heat demand product for return water refers to the total heat drive value required by the return water pipeline. The total heat demand product for return water is obtained by multiplying the difference in supply water temperature contribution and the difference in supply water temperature provided by the treatment terminal.

[0154] Step S807: Analyze the total heat demand volume of the return water and the effective temperature difference of the supply water to determine the target return water volumetric flow rate.

[0155] In this step, the target return water volumetric flow rate is the same as that in step S502 above. The target return water volumetric flow rate is obtained by dividing the total heat demand product of the return water by the effective temperature difference of the supply water through the processing terminal.

[0156] Based on the same inventive concept, embodiments of this application provide a heat exchange station control method, including: The acquisition module is used to acquire the target water supply temperature, actual mixing temperature, actual water supply temperature, actual return water temperature, heat required by the heat exchange station, indoor detection temperature, initial indoor temperature, outdoor detection temperature, actual building heat dissipation by personnel, total heat supply of the heat exchange station, pressure difference of the water supply valve, pressure difference of the return water valve, water supply mass flow rate of the heat exchange station, total water supply mass flow rate of the heat exchange station, supply and return temperature difference of the heat exchange station, and water supply volume flow rate of the heat exchange station. A memory used to store a program for a heat exchange station control method; The processor is a program in memory that can be loaded and executed by the processor to implement a heat exchange station control method.

[0157] Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the above-described division of functional modules is used as an example. In practical applications, the above functions can be assigned to different functional modules as needed, that is, the internal structure of the device can be divided into different functional modules to complete all or part of the functions described above. The specific working process of the system, device, and unit described above can be referred to the corresponding process in the foregoing method embodiments, and will not be repeated here.

[0158] This application provides a computer-readable storage medium storing a computer program that can be loaded by a processor and executed as a heat exchange station control method.

[0159] Computer storage media include, for example, USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, optical disks, and other media that can store program code.

[0160] Based on the same inventive concept, this application provides an intelligent terminal, including a memory and a processor, wherein the memory stores a computer program that can be loaded and executed by the processor to control a heat exchange station.

[0161] Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the above-described division of functional modules is used as an example. In practical applications, the above functions can be assigned to different functional modules as needed, that is, the internal structure of the device can be divided into different functional modules to complete all or part of the functions described above. The specific working process of the system, device, and unit described above can be referred to the corresponding process in the foregoing method embodiments, and will not be repeated here.

[0162] The above are all preferred embodiments of this application and are not intended to limit the scope of protection of this application. Any feature disclosed in this specification (including the abstract and drawings) may be replaced by other equivalent or similar features unless specifically stated otherwise. That is, unless specifically stated otherwise, each feature is only one example of a series of equivalent or similar features.

Claims

1. A control method for a heat exchange station, characterized in that, include: Obtain the target water supply temperature and the actual mixing temperature; Determine whether the actual mixing temperature matches the target water supply temperature; If they match, continue to obtain the actual mixing temperature and perform a cyclical judgment. If they are inconsistent, obtain the actual supply water temperature and the actual return water temperature; The actual water supply temperature, actual return water temperature, and target water supply temperature are analyzed to determine the target water supply valve opening and the target return water valve opening. The water supply valve on the preset water supply pipeline is adjusted to the target water supply valve opening, and the water return valve on the preset water return pipeline is adjusted to the target water return valve opening, so as to drive the water flow in the water supply pipeline and the water return pipeline into the preset Venturi jet to mix.

2. The heat exchange station control method according to claim 1, characterized in that, The steps to obtain the target water supply temperature include: To obtain a heat exchange station, you need to provide heat capacity and indoor temperature monitoring. The heat required by the heat exchange station and the preset number of water exchanges per cycle are analyzed to determine the heat required by the heat exchange station per cycle. The heat required for a single heat exchange station, the preset building air quality, the preset air specific heat capacity, and the indoor detection temperature are analyzed to determine the indoor temperature increase. The target water supply temperature is determined by analyzing the heat required to be provided by a single heat exchange station, the preset pipeline heat transfer coefficient, the preset pipeline heat transfer area, and the indoor temperature rise.

3. The heat exchange station control method according to claim 2, characterized in that, The steps required to obtain heat from a heat exchange station include: Obtain the initial indoor temperature and the measured outdoor temperature; The initial indoor temperature, the outdoor measured temperature, and the preset target indoor temperature are analyzed to determine the building's heat dissipation. The initial indoor temperature and the target indoor temperature are analyzed to determine the indoor temperature variation. The building air quality, indoor temperature rise, and air specific heat capacity were analyzed to determine the heat of temperature variation. Obtain the actual heat dissipation of the building by personnel; The analysis of the heat generated by the temperature rise, the actual heat dissipation from the building by personnel, and the heat dissipation from the building is used to determine the heat that the heat exchange station needs to provide.

4. The heat exchange station control method according to claim 3, characterized in that, The steps for analyzing the initial indoor temperature, the measured outdoor temperature, and the preset target indoor temperature to determine the building's heat dissipation include: The initial indoor temperature, target indoor temperature, and preset temperature discrete parameters are analyzed to determine the heat dissipation indoor temperature. The indoor and outdoor temperatures of the heat dissipation chambers were analyzed to determine the average temperature difference between adjacent heat dissipation chambers. The average temperature difference between adjacent heat dissipation, the preset total heat transfer coefficient, and the preset discrete heat dissipation time are analyzed to determine the heat dissipation amount per temperature cycle. The heat dissipation from a single temperature event is analyzed to determine the building's heat dissipation.

5. The heat exchange station control method according to claim 1, characterized in that, The steps for analyzing the actual supply water temperature, actual return water temperature, and target supply water temperature to determine the target supply water valve opening and target return water valve opening include: Obtain the total heat supply of the heat exchange station; The total heat supply of the heat exchange station is analyzed to determine the target mixing temperature of the ejector; The actual supply water temperature, actual return water temperature, jet nozzle target mixing temperature, and target supply water temperature are analyzed to determine the target supply water volumetric flow rate and the target return water volumetric flow rate. Obtain the pressure difference between the water supply valve and the return valve; The pressure difference of the water supply valve, the preset flow coefficient of the water supply valve, and the target water supply volume flow rate are analyzed to determine the target water supply valve opening. The pressure difference of the return water valve, the preset return water valve flow coefficient, and the target return water volume flow rate are analyzed to determine the target return water valve opening.

6. The heat exchange station control method according to claim 5, characterized in that, The steps for analyzing the heat supplied by the heat exchange station to determine the target mixing temperature of the ejector include: Obtain the mass flow rate of water supplied to the heat exchange station and the total mass flow rate of water supplied to the heat exchange station; The total water supply mass flow rate and the water supply mass flow rate of the heat exchange station were analyzed to determine the water supply mass flow rate of the ejector. Obtain the supply and return temperature difference of the heat exchange station; The mass flow rate of water supplied to the heat exchange station, the preset specific heat capacity of water, and the supply and return temperature difference of the heat exchange station are analyzed to determine the heat capacity of the water supplied to the heat exchange station. The heat required by the heat exchange station and the heat supply water of the heat exchange station are analyzed to determine the target heat supply water of the jet injector; The specific heat capacity of water and the mass flow rate of the ejector water supply were analyzed to determine the heat capacity flow rate of the ejector. The target mixing temperature of the jet injector is determined by analyzing the jet injector heat capacity flow rate, actual water supply temperature, and target jet injector water supply heat.

7. The heat exchange station control method according to claim 6, characterized in that, The steps to obtain the mass flow rate of the water supplied to the heat exchange station and the total mass flow rate of the water supplied to the heat exchange station include: Obtain the volumetric flow rate of the water supply to the heat exchange station; The volumetric flow rate of the water supplied to the heat exchange station and the density corresponding to the preset water temperature were analyzed to determine the mass flow rate of the water supplied to the heat exchange station. The heat required by the heat exchange station, the specific heat capacity of the water, and the preset target supply and return water temperature difference are analyzed to determine the total supply water mass flow rate.

8. The heat exchange station control method according to claim 5, characterized in that, The steps for analyzing the actual supply water temperature, actual return water temperature, jet injector target mixing temperature, and target supply water temperature to determine the target supply water volumetric flow rate and target return water volumetric flow rate include: The target water supply temperature and the jet injector target mixing temperature are analyzed to determine the contribution difference of the water supply temperature. The target mixing temperature and the actual return water temperature of the jet injector are analyzed to determine the temperature difference that the return water needs to obtain. The contribution difference of supply water temperature and the temperature difference required for return water are analyzed to determine the basic heat drive value; The actual water supply temperature and the jet injector target mixing temperature are analyzed to determine the temperature difference that the water supply can provide. The effective temperature difference of the water supply is determined by analyzing the temperature difference provided by the water supply and the temperature contribution difference of the water supply. The target water supply volumetric flow rate is determined by analyzing the baseline heat drive value and the effective temperature difference of the water supply. The contribution difference of supply water temperature and the temperature difference that supply water can provide are analyzed to determine the total heat demand product of return water. The total heat demand volume of the return water and the effective temperature difference of the supply water are analyzed to determine the target return water volumetric flow rate.

9. A heat exchange station control system, characterized in that, include: The acquisition module is used to acquire the actual mixing temperature, target supply water temperature, actual supply water temperature, and actual return water temperature. A memory for storing a program of a heat exchange station control method as described in any one of claims 1 to 8; The processor and the program in the memory can be loaded and executed by the processor to implement the heat exchange station control method as described in any one of claims 1 to 8.

10. A smart terminal, characterized in that, It includes a memory and a processor, wherein the memory stores a computer program that can be loaded by the processor and executed as described in any one of claims 1 to 8.

Images