Flow control method, flow control device, heating and ventilation system, and storage medium

Abstract

The application provides a flow control method, a flow control device, a heating and ventilation system and a storage medium. The method is applied to the field of heat pumps. The method obtains a heat source temperature threshold required when a heat source storage assembly exchanges heat with a heat source use assembly, and a heat source temperature of heat source delivered from the heat source storage assembly to the heat source use assembly. Then, the rotation speed of a first flow driving assembly and a second flow driving assembly is adjusted based on the heat source temperature threshold and the heat source temperature. The flow of the heat source is controlled by controlling the flow of the heat source and the flow direction of the heat source. The flow direction of the heat source is controlled through the first pipeline and the second pipeline installed on the heat source storage assembly. The method controls the flow direction of the heat source through the first pipeline and the second pipeline installed on the heat source storage assembly, thereby avoiding the problem that the temperature of the output heat source is low due to the uneven temperature of the heat source of the heat source storage assembly.

Description

Technical Field

[0001] This application relates to the field of heat pumps, and more specifically, to a flow control method, flow control device, heating and ventilation system, and storage medium in the field of heat pumps. Background Technology

[0002] In order to meet the changing heat demand when the HVAC system is turned on, it is necessary to control the inlet and outlet flow rates of the buffer tank in the HVAC system.

[0003] In the relevant solutions, an inlet is usually set at one end of the buffer tank and an outlet is set at the other end. The heat source heated by the heat pump flows into the tank from the inlet and then flows out to the end of the heat source from the outlet. Since the inlet and outlet are set at the two ends of the tank respectively, the heat source in the tank needs to be fully mixed before it can be delivered to the end. Otherwise, the heat source temperature output from the outlet to the end of the heat source will be low. Summary of the Invention

[0004] This application provides a flow control method, a flow control device, a heating and ventilation system, and a storage medium. The method avoids the problem of low output heat source temperature due to uneven heat source temperature in the heat source storage component by installing a first pipe and a second pipe in the heat source storage component and controlling the flow direction of the heat source.

[0005] In a first aspect, a flow control method is provided, which is applied to a control component of a heating, ventilation, and air conditioning (HVAC) system. The HVAC system includes: a heat source component, a first pipe, a second pipe, a first flow drive component, a second flow drive component, a heat source storage component, a heat source utilization component, a temperature sensor, and a control component. The heat source component is connected to the heat source storage component via the first pipe, and the first flow drive component is installed on the first pipe. The heat source utilization component is connected to the heat source storage component via the second pipe, and the second flow drive component and the temperature sensor are installed on the second pipe. The control component is connected to the first flow drive component, the second flow drive component, and the temperature sensor, respectively. The method includes:

[0006] The heat source temperature threshold required for heat exchange using the heat source component is obtained, and the heat source temperature delivered to the heat source component is obtained from the temperature sensor.

[0007] The rotation speed of the first flow drive component and the second flow drive component is controlled based on the heat source temperature threshold and the heat source temperature to control the flow rate of the heat source through the first pipe and the second pipe.

[0008] Secondly, a flow control device is provided, the device comprising:

[0009] The acquisition unit is used to acquire the heat source temperature threshold required when the heat source uses the component for heat exchange, and to acquire the heat source temperature delivered to the heat source using the component by the temperature sensor.

[0010] The control unit is used to control the rotation speed of the first flow drive component and the second flow drive component based on the heat source temperature threshold and the heat source temperature, so as to control the flow rate of the heat source through the first pipe and the second pipe.

[0011] Thirdly, a heating, ventilation, and air conditioning system is provided, including:

[0012] A heat source assembly is used to generate a heat source that acts on the terminal through heat conversion;

[0013] The first pipeline is used to transport the heat source;

[0014] The second pipe is used to transport the heat source;

[0015] A first flow-driven component is used to control the flow rate of the heat source in the first pipe;

[0016] The second flow drive component is used to control the flow rate of the heat source in the second pipe;

[0017] Heat source storage component, used to store heat sources;

[0018] Heat source components are used for energy conversion using heat sources;

[0019] Temperature sensor, used to detect the temperature of the heat source supplied to the heat source components.

[0020] A control component is used to call and run executable program code, causing the HVAC system to perform the methods in the first aspect or any possible implementation of the first aspect.

[0021] Fourthly, a computer program product is provided, comprising: computer program code, which, when run on a computer, causes the computer to perform the methods described in the first aspect or any possible implementation thereof.

[0022] Fifthly, a computer-readable storage medium is provided that stores computer program code, which, when executed on a computer, causes the computer to perform the methods described in the first aspect or any possible implementation thereof.

[0023] In this embodiment, by obtaining the heat source temperature threshold required for heat exchange by the heat source utilization component, and the heat source temperature of the heat source transported from the heat source storage component to the heat source utilization component, the rotation speed of the first flow drive component and the second flow drive component is adjusted based on the heat source temperature threshold and the heat source temperature. By controlling the flow rate of the heat source, the flow direction of the heat source is controlled. Furthermore, by installing the first and second pipes in the heat source storage component and controlling the flow direction of the heat source, the problem of low output heat source temperature caused by uneven heat source temperature in the heat source storage component is avoided. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the structure of a heating, ventilation, and air conditioning system provided in an embodiment of this application;

[0025] Figure 2A This is a schematic diagram of the structure of a heating, ventilation, and air conditioning system provided in an embodiment of this application;

[0026] Figure 2B This is a schematic diagram of the structure of a heating, ventilation, and air conditioning system provided in an embodiment of this application;

[0027] Figure 3 This is a schematic diagram of the structure of a heating, ventilation, and air conditioning system provided in an embodiment of this application;

[0028] Figure 4 This is a flowchart illustrating a flow control method provided in an embodiment of this application;

[0029] Figure 5 This is a flowchart illustrating a flow control method provided in an embodiment of this application;

[0030] Figure 6 This is a schematic diagram of the structure of a flow control device provided in an embodiment of this application;

[0031] Figure 7 This is a schematic diagram of the structure of a heating, ventilation and air conditioning system provided in an embodiment of this application.

[0032] Label Explanation:

[0033] 1. Heat source component; 2. First flow drive component; 3. Heat source storage component; 4. Second flow drive component; 5. First pipe; 6. Second pipe; 7. Heat source usage component; 8. Main pipe; 801. First branch pipe; 802. Second branch pipe; 803. Third branch pipe; 901. First return water pipe; 902. Second return water pipe. Detailed Implementation

[0034] The technical solutions in this application will be clearly and thoroughly described below with reference to the accompanying drawings. In the description of the embodiments of this application, unless otherwise stated, " / " means "or," for example, A / B can mean A or B. "And / or" in the text is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Furthermore, in the description of the embodiments of this application, "multiple" refers to two or more than two.

[0035] Hereinafter, the terms "first" and "second" are used for descriptive purposes only and should not be construed as implying or suggesting relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.

[0036] Figure 1 This is a schematic diagram of the structure of a heating, ventilation and air conditioning system provided in an embodiment of this application.

[0037] Heat source storage components balance the heat demand of HVAC systems with the heat generation capacity of heat source components by storing a certain amount of heat source. When the heat generation capacity of heat source components exceeds the heat demand capacity of HVAC systems, heat can be stored through heat source storage components so that HVAC systems can use it when needed.

[0038] exist Figure 1 In related technologies, heat source storage components mainly adopt a two-input, two-output structure to store and transport heat sources. In this way, the heat source in the heat source storage component needs to reach a uniform temperature before it can be output to the end. Otherwise, the heat source in the heat source storage component with a lower temperature will affect the user's use.

[0039] Please see Figure 2A , Figure 2A This is a schematic diagram of a heat source storage component provided in an embodiment of this application. Figure 2A The HVAC system includes: a heat source component 1, a first pipe 5, a second pipe 6, a first flow drive component 2, a second flow drive component 4, a heat source storage component 3, a heat source utilization component 7, a temperature sensor (not shown in the figure), and a control component (not shown in the figure). The heat source component 1 is connected to the heat source storage component 3 through the first pipe 5. The first flow drive component 2 is installed on the first pipe 5. The heat source utilization component 7 is connected to the heat source storage component 3 through the second pipe 6. The second flow drive component 4 is installed on the second pipe 6, and the temperature sensor is installed on the second pipe 6. The control component is connected to the first flow drive component 2, the second flow drive component 4, and the temperature sensor, respectively.

[0040] In this embodiment, after the power is turned on, the heat source component 1 generates a high-temperature heat source that acts on the terminal through heat conversion. The heat source is then transported from the heat source component 1 to the heat source user component 7. Specifically, after the heat source component 1 receives the heat source, it is transported to the heat source storage component 3 through the first pipe 5, and then to the heat source utilization component 7 through the second pipe 6. During the transportation process, the flow rate of the heat source is controlled by controlling the rotation speed of the first flow drive component 2 installed on the first pipe 5 and the second flow drive component 4 installed on the second pipe 6. When the heat source is transported to the heat source storage component 3 through the first pipe 5, if the rotation speed of the second flow drive component 4 is less than the rotation speed of the first flow drive component 2, some of the heat source output from the heat source component 1 flows to the heat source storage component 3 and is stored there. If the rotation speed of the second flow drive component 4 is greater than the rotation speed of the first flow drive component 2, some of the stored heat source is output from the heat source storage component 3 and transported to the heat source utilization component 7 through the second pipe 6, so that the heat source utilization component 7 can use the heat source for energy conversion and achieve the regulation of indoor temperature.

[0041] It is understood that, in this embodiment, when the first pipe 5 and the second pipe 6 are directly connected to the heat source storage component 3, the distance between the first connection point of the first pipe 5 and the heat source storage component 3, and the distance between the second pipe 6 and the second connection point of the heat source storage component 3, are minimized. This ensures that the heat source transported from the first pipe 5, after flowing into the heat source storage component 3 through the first pipe 5, can quickly merge with the heat source near the second connection point, increasing the temperature of the heat source at the second connection point. This allows the heat source near the second connection point to reach the temperature at which the heat source using the heat source can exchange heat when transported to the heat source using component 7 through the second pipe 6. Optionally, in this embodiment, the distance between the first connection point and the second connection point can be set to 0.

[0042] Specifically, the heat source can be water, the heat source component 1 can be a heat pump system, the heat source storage component 3 can be a water tank, and the heat source application component 7 can be a radiator (RAD), a fan coil unit (FCU), or a floor heating system (FHL).

[0043] Please see Figure 2B , Figure 2B This is a structural schematic diagram of a heating, ventilation, and air conditioning system provided in this application.

[0044] The HVAC system also includes a main pipe 8, which includes a first branch pipe 801, a second branch pipe 802, and a third branch pipe 803; the first branch pipe 801 is connected to the first pipe 5, the second branch pipe 802 is connected to the second pipe 6, and the third branch pipe 803 is connected to the heat source storage component 3.

[0045] In one scenario, if the rotational speed of the first flow drive component 2 is greater than the rotational speed of the second flow drive component 4, the heat source passing through the first pipe 5 and the first branch pipe 801 flows to the second pipe 6 through the second branch pipe 802, and flows to the heat source storage component 3 through the first branch pipe 801 and the third branch pipe 803.

[0046] In another case, if the rotational speed of the first flow drive component 2 is less than the rotational speed of the second flow drive component 4, the heat source passing through the first pipe 5 flows to the second pipe 6 through the second branch pipe 802, and the heat source of the heat source storage component 3 flows to the second pipe 6 through the third branch pipe 803 and the second branch pipe 802.

[0047] In another case, if the rotational speed of the first flow drive component 2 is less than the rotational speed of the second flow drive component 4, the heat source passing through the first pipe 5 flows to the second pipe 6 through the first branch pipe 801 and the second branch pipe 802.

[0048] It is understood that the main pipe 8 is connected to the first pipe 5 via the first branch pipe 801, the second branch pipe 802 to the second pipe 6, and the heat source storage component 3 via the third branch pipe 803. The heat source storage component 3 receives heat from the heat pump via the third branch pipe 803 of the main pipe and similarly supplies heat to the heat source using component 7 via the third branch pipe 803. By receiving and supplying heat at the same location (i.e., at the interface connected to the third branch pipe 803), the heat source storage component 3 supplies heat to the heat source using component 7 first, prioritizing heat sources near the connection point of the third branch pipe 803. This avoids supplying heat sources in the heat source storage component 3 that have not yet exchanged heat with the currently supplied heat source to the heat source using component 7, ensuring that the temperature of the heat source supplied to the heat source using component 7 reaches the temperature at which heat exchange occurs.

[0049] Further reading is available upon request. Figure 2BIn this embodiment, the HVAC system further includes a first return water pipe 901 and a second return water pipe 902. The first return water pipe 901 connects the heat source storage component 3 and the heat source utilization component 7, and the second return water pipe 902 connects the heat source storage component 3 and the heat source component 1. It is understood that after the heat source utilization component 7 exchanges heat using the heat source, the relatively low-temperature heat source is transported back to the heat source storage component 3 through the first return water pipe, and then to the heat source component 1 through the second return water pipe 902.

[0050] It is understood that in this embodiment, the third connection position connecting the first return water pipe 901 to the heat source storage component 3 and the fourth connection position connecting the second return water pipe 902 to the heat source storage component 3 can be arranged relative to each other, that is, at the other end of the connection position between the heat source component 1 and the first pipe 5 and the second pipe 6 in the opposite direction of the heat source component 1. For example, if the first pipe 5 and the second pipe 6 are connected to the heat source storage component 3 above the heat source storage component 3, then the first return water pipe 901 and the second return water pipe are connected to the heat source storage component 3 below the heat source storage component 3. By setting a large distance between the connection positions of the first return water pipe 901 and the second return water pipe 902 and the connection positions of the first pipe and the second pipe and the heat source storage component 3, it is possible to avoid the heat source supplied from the heat source use component 7 to the heat source storage component 3 affecting the temperature of the heat source that needs to be supplied from the heat source storage component 3 to the heat source use component 7, thereby ensuring that the temperature of the heat source supplied to the heat source use component 7 meets the temperature for heat exchange by the heat source use component 7, and thus improving user satisfaction.

[0051] Please see Figure 3 , Figure 3 This diagram illustrates the connection between the control component, the first flow drive component, the second flow drive component, and the temperature sensor. The control component is connected to the first flow drive component, the second flow drive component, and the temperature sensor. Specifically, the control component can be a microcontroller unit (MCU). Thus, the control component controls the rotational speed of the first and second flow drive components and acquires the temperature of the heat source flowing from the second pipe 6 to the heat source utilization component 7, detected by the temperature sensor installed at the end of the second pipe 6. Furthermore, the rotational speed of the first and second flow drive components is controlled based on the heat source temperature. For example, if the heat source temperature does not meet a preset heat source temperature threshold, the rotational speeds of the first and second flow drive components are controlled to bring the heat source temperature of the heat source utilization component 7 up to the heat source temperature threshold by controlling the flow rate of the heat source.

[0052] based on Figure 1-3 The schematic diagram of the HVAC system shown below will be combined with... Figures 4-5 The flow control method provided in the embodiments of this application will be described in detail.

[0053] Please see Figure 4 This is a flowchart illustrating a flow control method provided in an embodiment of this application. Figure 4 As shown, the method in this application embodiment may include the following steps S101-S102.

[0054] S101, obtain the heat source temperature threshold required when the heat source uses the component for heat exchange, and obtain the heat source temperature delivered to the heat source using the component by the temperature sensor.

[0055] Specifically, while acquiring the heat source temperature threshold, a temperature sensor is used to collect the temperature of the heat source output from the heat source storage component 3 to the heat source utilization component 7. In this embodiment, it is understood that heat loss occurs during the transmission of the heat source to the heat source utilization component 7 via the second pipe 6; that is, the temperature of the heat source decreases during transmission through the second pipe 6. To accurately obtain the temperature output to the heat source utilization component 7, a temperature sensor is installed at the junction of the second pipe 6 and the heat source utilization component 7.

[0056] In one embodiment, the control component obtains the heat source temperature threshold required when the heat source uses component 7 for heat exchange. The heat source temperature threshold can be a temperature threshold set by the user, or it can be a heat source temperature threshold determined by the current indoor temperature of the indoor environment and the number of people in the indoor environment through the heat source using component 7.

[0057] Optionally, when the control component determines the heat source temperature threshold based on the current indoor temperature, it acquires the indoor temperature using a temperature sensor installed in the indoor environment and determines the number of people in the indoor environment using a camera, thereby determining the heat source temperature threshold corresponding to the indoor temperature and the number of people. For example, if the indoor temperature is low and the number of people in the indoor environment is high, a relatively low heat source temperature threshold is set to prevent the indoor temperature from becoming too high; if the indoor temperature is low and the number of people in the indoor environment is low, a relatively high heat source temperature threshold is set to provide sufficient heat for the people in the room.

[0058] In this embodiment, the heat source temperature threshold is determined by detecting the number of heat sources in the room and the indoor ambient temperature. The heat source temperature threshold can be determined based on the actual situation of the indoor environment space where the heat source using component 7 is used, thus achieving accurate setting of the heat source temperature threshold.

[0059] S102, based on the heat source temperature threshold and the heat source temperature, control the rotation speed of the first flow drive component and the second flow drive component to control the flow rate of the heat source through the first pipe and the second pipe.

[0060] In one embodiment, after determining the heat source temperature threshold and the heat source temperature, the rotation speed of the first flow drive component 2 and the second flow drive component 4 are determined by the heat source temperature threshold and the heat source temperature. By controlling the rotation speed of the first flow drive component 2 and the second flow drive component 4, the amount of heat source flow delivered to the heat source storage component 3 and the heat source usage component 7 can be controlled.

[0061] In this embodiment, by obtaining the heat source temperature threshold required for heat exchange by the heat source utilization component, and the heat source temperature of the heat source transported from the heat source storage component to the heat source utilization component, the rotation speed of the first flow drive component and the second flow drive component is adjusted based on the heat source temperature threshold and the heat source temperature. By controlling the flow rate and direction of the heat source, and through the first and second pipes connected to the heat source storage component, the problem of low output heat source temperature caused by uneven heat source temperature in the heat source storage component is avoided.

[0062] Please see Figure 5 This is a flowchart illustrating a flow control method provided in an embodiment of this application. Figure 5 As shown, the method in this application embodiment may include the following steps S201-S202.

[0063] S201, obtain the heat source temperature threshold required when the heat source uses the component for heat exchange, and obtain the heat source temperature delivered to the heat source using the component by the temperature sensor.

[0064] Specifically, please refer to the description of step S101 in the above embodiment of the specification, which will not be repeated here.

[0065] S202, the rotation speed of the first flow drive component and the second flow drive component is controlled based on the comparison result of the heat source temperature threshold and the heat source temperature.

[0066] In one embodiment, when determining the rotation speed of the first flow drive component 2 and the second flow drive component 4 based on the heat source temperature threshold and the heat source temperature, the rotation speed of the first flow drive component 2 and the second flow drive component 4 can be controlled by comparing the heat source temperature threshold and the heat source temperature.

[0067] Furthermore, in this embodiment of the application, when the heat source temperature threshold is greater than the heat source temperature, the rotation speed of the first flow drive component 2 is controlled to be a first rotation speed, and the rotation speed of the second flow drive component 4 is controlled to be a second rotation speed, wherein the first rotation speed is less than the second rotation speed.

[0068] Specifically, the first flow drive component 2 controls the flow rate of the heat source in the first pipe 5 connecting the heat source component 1 and the heat source storage component 3, and the second flow drive component 4 controls the flow rate of the heat source in the second pipe 6 connecting the heat source use component 7 and the heat source storage component 3. When the first rotation speed of the first flow drive component is less than the second rotation speed of the second flow drive component, the flow rate of the heat source through the first pipe 5 is less than the flow rate of the heat source through the second pipe 6. The heat source in the first pipe 5 flows to the second pipe 6 through the second branch pipe 802 of the main pipe after passing through the first branch pipe 801 of the main pipe. The heat source in the heat source storage component 3 flows to the second pipe 6 through the third branch pipe 803 of the main pipe.

[0069] For example, if the rotation speed of the first flow drive component 2 is 500 r / s and the rotation speed of the second flow drive component 4 is 500 r / s, and the heat source temperature threshold is determined to be greater than the heat source temperature, the first rotation speed of the first flow drive component 2 is controlled to be 500 r / s and the second rotation speed of the second flow drive component 4 is controlled to be 600 r / s. It can be understood that the higher the rotation speed of the flow drive component, the greater the flow rate in the pipe it is in.

[0070] In this embodiment, by controlling the rotation speed of the second flow drive component 4 to be greater than the first rotation speed of the first flow drive component 2 when the heat source temperature threshold is greater than the heat source temperature, it is possible to accurately control the flow of heat source from the first pipe 5 and the heat source storage component 3 to the second pipe 6 when the first pipe 5 and the second pipe 6 are connected by a summing pipe.

[0071] Furthermore, in this embodiment, when the heat source temperature threshold is greater than the heat source temperature, the rotation speed of the first flow drive component 2 is controlled to be a third rotation speed, and the rotation speed of the second flow drive component 4 is controlled to be a fourth rotation speed, wherein the third rotation speed is greater than the fourth rotation speed.

[0072] Specifically, the first flow drive component 2 controls the flow rate of the heat source in the first pipe 5 connecting the heat source component 1 and the heat source storage component 3, and the second flow drive component 4 controls the flow rate of the heat source in the second pipe 6 connecting the heat source use component 7 and the heat source storage component 3. When the third rotation speed of the first flow component is greater than the fourth rotation speed of the second flow component, the flow rate of the heat source through the first pipe 5 is greater than the flow rate of the heat source through the second pipe 6. Part of the heat source in the first pipe 5 flows to the second pipe 6 through the second branch pipe 802 of the summing pipe after passing through the first branch pipe 801 of the summing pipe, and the other part of the heat source flows to the heat source storage component 3 through the first branch pipe 801 and the third branch pipe 803 of the summing pipe.

[0073] For example, if the rotation speed of the first flow drive component 2 is 500 r / s and the rotation speed of the second flow drive component 4 is 500 r / s, and the heat source temperature threshold is determined to be less than the heat source temperature, the third rotation speed of the first flow drive component 2 is controlled to be 600 r / s and the fourth rotation speed of the second flow drive component 4 is controlled to be 500 r / s.

[0074] In this embodiment, by controlling the rotation speed of the second flow drive component 4 to be a fourth rotation speed which is less than the third rotation speed of the first flow drive component 2 when the heat source temperature threshold is less than the heat source temperature, it is possible to accurately control the flow of the heat source from the first pipe 5 to the second pipe 6 and the heat source storage component 3 when the first pipe 5 and the second pipe 6 are connected by a summing pipe.

[0075] Furthermore, in this embodiment of the application, when the heat source temperature threshold is equal to the heat source temperature, the rotation speed of the first flow drive component 2 and the second flow drive component 4 is controlled to be the fifth rotation speed.

[0076] For example, if the rotation speed of the first flow drive component 2 is 500 r / s and the rotation speed of the second flow drive component 4 is 400 r / s, and the heat source temperature threshold is determined to be equal to the heat source temperature, the rotation speed of the first flow drive component 2 and the second flow drive component 4 is controlled to be 500 r / s.

[0077] In this embodiment, by controlling the rotation speed of the second flow drive component 4 to be equal to the second rotation speed of the first flow drive component 2 when the heat source temperature threshold is equal to the heat source temperature, it is possible to accurately control the flow of heat source from the first pipe 5 to the second pipe 6 when using a combined pipe to connect the first pipe 5 and the second pipe 6.

[0078] based on Figure 1-3 The structure will be combined below. Figure 6 This application provides a detailed description of the flow control device 1 provided in the embodiments. It should be noted that... Figure 6 The flow control device 1 in the present application is used to perform the flow control function of this application. Figure 4 , Figure 5 The methods shown in the embodiments are illustrated for ease of explanation, showing only the parts relevant to the embodiments of this application. For specific technical details not disclosed, please refer to this application. Figure 4 , Figure 5 The illustrated embodiment. Specifically, the flow control device 1 includes: an acquisition unit 11 and a control unit 12.

[0079] The acquisition unit 11 is used to acquire the heat source temperature threshold required when the heat source uses the component for heat exchange, and to acquire the heat source temperature delivered to the heat source using the component by the temperature sensor.

[0080] Control unit 12 is used to control the rotation speed of the first flow drive component and the second flow drive component based on the heat source temperature threshold and the heat source temperature, so as to control the flow rate of the heat source through the first pipe and the second pipe.

[0081] Optionally, the control unit 11 includes a control subunit 111.

[0082] The rotation speed of the first flow drive component and the second flow drive component is controlled based on the comparison result of the heat source temperature threshold and the heat source temperature.

[0083] Optionally, the control unit 11 is specifically used for:

[0084] If the heat source temperature threshold is greater than the heat source temperature, the rotation speed of the first flow drive component is controlled to be a first rotation speed, and the rotation speed of the second flow drive component is controlled to be a second rotation speed, wherein the first rotation speed is less than the second rotation speed.

[0085] Optionally, the control unit 11 is specifically used for:

[0086] If the heat source temperature threshold is less than the heat source temperature, the rotation speed of the first flow drive component is controlled to be the third rotation speed, and the rotation speed of the second flow drive component is controlled to be the fourth rotation speed, wherein the third rotation speed is greater than the fourth rotation speed.

[0087] Optionally, the control unit 11 is specifically used for:

[0088] If the heat source temperature threshold is equal to the heat source temperature, then the rotation speed of the first flow drive component and the rotation speed of the second flow drive component are controlled to be the fifth rotation speed.

[0089] Please see Figure 7 This document provides a schematic diagram of the structure of a heating, ventilation, and air conditioning system, as illustrated in an embodiment of this application. Figure 7 As shown, the HVAC system 500 includes a control component 501 and a memory 502. The control component 501 is electrically connected to the memory 502.

[0090] The control component 501 is the control center of the HVAC system 500 and may include one or more processing cores. The control component 501 connects to various parts of the HVAC system 500 using various interfaces and lines. By running or calling computer programs stored in the memory 502, and by calling data stored in the memory 502, it executes various functions and processes data of the HVAC system 500, thereby providing overall control of the HVAC system 500. Optionally, the control component 501 may be implemented using at least one hardware form selected from Digital Signal Processing (DSP), Field Programmable Gate Array (FPGA), and Programmable Logic Array (PLA). The control component 501 may integrate one or more of the following: CPU, Graphics Processing Unit (GPU), and modem. The CPU primarily handles the operating system, user page, and applications; the GPU is responsible for rendering and drawing the displayed content; and the modem handles wireless communication. It is understood that the modem may also be implemented separately as a communication chip, without being integrated into the control component 501.

[0091] The memory 502 can be used to store software programs and modules. The control component 501 executes various functional applications and data processing by running the computer programs and modules stored in the memory 502. The memory 502 may mainly include a program storage area and a data storage area. The program storage area may store the operating system, computer programs required for at least one function, etc.; the data storage area may store data created based on the use of the HVAC system 500, etc.

[0092] Furthermore, memory 502 may include high-speed random access memory, and may also include non-volatile memory, such as at least one disk storage device, flash memory device, or other volatile solid-state storage device. Accordingly, memory 502 may also include a memory controller to provide control component 501 with access to memory 502.

[0093] In this embodiment, the control component 501 in the HVAC system 500 loads the instructions corresponding to the processes of one or more computer programs into the memory 502 according to the following steps, and the control component 501 runs the computer programs stored in the memory 502 to realize various functions, as follows:

[0094] The heat source temperature threshold required for heat exchange using the heat source component is obtained, and the heat source temperature delivered to the heat source component is obtained from the temperature sensor.

[0095] The rotation speed of the first flow drive component and the second flow drive component is controlled based on the heat source temperature threshold and the heat source temperature to control the flow rate of the heat source through the first pipe and the second pipe.

[0096] Optionally, when the control component 501 executes the control of the first flow drive component and the second flow drive component based on the heat source temperature threshold and the heat source temperature, it specifically performs the following:

[0097] The rotation speed of the first flow drive component and the second flow drive component is controlled based on the comparison result of the heat source temperature threshold and the heat source temperature.

[0098] Optionally, when the control component 501 controls the rotation speed of the first flow drive component and the second flow drive component based on the comparison result between the heat source temperature threshold and the heat source temperature, it specifically performs the following:

[0099] If the heat source temperature threshold is greater than the heat source temperature, the rotation speed of the first flow drive component is controlled to be a first rotation speed, and the rotation speed of the second flow drive component is controlled to be a second rotation speed, wherein the first rotation speed is less than the second rotation speed.

[0100] Optionally, when the control component 501 controls the rotation speed of the first flow drive component and the second flow drive component based on the comparison result between the heat source temperature threshold and the heat source temperature, it specifically performs the following:

[0101] If the heat source temperature threshold is less than the heat source temperature, the rotation speed of the first flow drive component is controlled to be the third rotation speed, and the rotation speed of the second flow drive component is controlled to be the fourth rotation speed, wherein the third rotation speed is greater than the fourth rotation speed.

[0102] Optionally, when the control component 501 controls the rotation speed of the first flow drive component and the second flow drive component based on the comparison result between the heat source temperature threshold and the heat source temperature, it specifically performs the following:

[0103] If the heat source temperature threshold is equal to the heat source temperature, then the rotation speed of the first flow drive component and the rotation speed of the second flow drive component are controlled to be the fifth rotation speed.

[0104] In this embodiment, by obtaining the heat source temperature threshold required for heat exchange by the heat source utilization component, and the heat source temperature of the heat source transported from the heat source storage component to the heat source utilization component, the rotation speed of the first flow drive component and the second flow drive component is adjusted based on the heat source temperature threshold and the heat source temperature. By controlling the flow rate and direction of the heat source, and by using the first and second pipes installed at adjacent positions of the heat source storage component, the problem of low output heat source temperature caused by uneven heat source temperature in the heat source storage component is avoided.

[0105] It should be understood that the apparatus provided in this application embodiment is used to execute the above-described flow control method, and therefore can achieve the same effect as the above-described implementation method.

[0106] When using an integrated unit, the device may include a processing module and a storage module. When applied to a heating, ventilation, and air conditioning (HVAC) system, the processing module can be used to control and manage the system's operations. The storage module can be used to support the execution of relevant program code by the HVAC system.

[0107] The processing module may be a control component or controller, which can implement or execute the various exemplary logic blocks, modules, and circuits described in conjunction with the disclosure of this application. The control component may also be a combination of computing functions, such as a combination of one or more microcontroller components, a combination of digital signal processing (DSP) and microcontroller components, etc., and the storage module may be a memory.

[0108] In addition, the device provided in this application embodiment may specifically be a chip, component or module. The chip may include a connected control component and a memory. The memory is used to store instructions. When the control component calls and executes the instructions, the chip can execute a flow control method provided in the above embodiment.

[0109] This application also provides a computer-readable storage medium storing computer program code. When the computer program code is run on a computer, the computer executes the above-described related method steps to implement a flow control method provided in the above embodiments.

[0110] This embodiment also provides a computer program product that, when run on a computer, causes the computer to perform the aforementioned related steps to implement a flow control method provided in the above embodiment.

[0111] In this embodiment, the device, computer-readable storage medium, computer program product, or chip are all used to execute the corresponding methods provided above. Therefore, the beneficial effects they can achieve can be referred to the beneficial effects in the corresponding methods provided above, and will not be repeated here.

[0112] Through the above description of the embodiments, those skilled in the art will understand that, for the sake of convenience and brevity, only the division of the above functional modules is used as an example. In actual 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.

[0113] In the embodiments provided in this application, it should be understood that the disclosed apparatus and methods can be implemented in other ways. For example, the apparatus embodiments described above are merely illustrative; for instance, the division of modules or units is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another device, or some features may be ignored or not executed. Furthermore, the coupling or direct coupling or communication connection shown or discussed may be through some interfaces; the indirect coupling or communication connection between devices or units may be electrical, mechanical, or other forms.

[0114] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A flow control method, characterized in that, A control component for a heating, ventilation, and air conditioning (HVAC) system, the HVAC system comprising: a heat source component, a first pipe, a second pipe, a first flow-driven component, a second flow-driven component, a heat source storage component, a heat source utilization component, a temperature sensor, and a control component; the heat source component is connected to the heat source storage component via the first pipe, and the first flow-driven component is installed on the first pipe; the heat source utilization component is connected to the heat source storage component via the second pipe, and the second flow-driven component and the temperature sensor are installed on the second pipe; the control component is connected to the first flow-driven component, the second flow-driven component, and the temperature sensor respectively; the method includes: The heat source temperature threshold required for heat exchange by the heat source using the component is obtained, and the heat source temperature delivered to the heat source using the component is obtained by the temperature sensor. The rotation speed of the first flow drive component and the second flow drive component is controlled based on the heat source temperature threshold and the heat source temperature to control the flow rate of the heat source through the first pipe and the second pipe.

2. The method according to claim 1, characterized in that, The method of controlling the first flow drive component and the second flow drive component based on the heat source temperature threshold and the heat source temperature includes: The rotation speed of the first flow drive component and the second flow drive component is controlled based on the comparison result between the heat source temperature threshold and the heat source temperature.

3. The method according to claim 2, characterized in that, Controlling the rotation speed of the first flow drive component and the second flow drive component based on the comparison result of the heat source temperature threshold and the heat source temperature includes: If the heat source temperature threshold is greater than the heat source temperature, then the rotation speed of the first flow drive component is controlled to a first rotation speed, and the rotation speed of the second flow drive component is controlled to a second rotation speed, wherein the first rotation speed is less than the second rotation speed.

4. The method according to claim 2, characterized in that, Controlling the rotation speed of the first flow drive component and the second flow drive component based on the comparison result of the heat source temperature threshold and the heat source temperature includes: If the heat source temperature threshold is less than the heat source temperature, then the rotation speed of the first flow drive component is controlled to a third rotation speed, and the rotation speed of the second flow drive component is controlled to a fourth rotation speed, wherein the third rotation speed is greater than the fourth rotation speed.

5. The method according to claim 2, characterized in that, Controlling the rotation speed of the first flow drive component and the second flow drive component based on the comparison result of the heat source temperature threshold and the heat source temperature includes: If the heat source temperature threshold is equal to the heat source temperature, then the rotation speed of the first flow drive component and the rotation speed of the second flow drive component are controlled to be the fifth rotation speed.

6. The method according to claim 1, characterized in that, The HVAC system also includes a main pipe, which includes a first branch pipe, a second branch pipe, and a third branch pipe; the first branch pipe is connected to the first pipe, the second branch pipe is connected to the second pipe, and the third branch pipe is connected to the heat source storage component. If the rotational speed of the first flow-driven component is greater than the rotational speed of the second flow-driven component, the heat source passing through the first pipe flows to the second pipe through the second branch pipe, and flows to the heat source storage component through the third branch pipe. If the rotational speed of the first flow driving component is less than the rotational speed of the second flow driving component, the heat source passing through the first pipe flows to the second pipe through the second branch pipe, and the heat source of the heat source storage component flows to the second pipe through the second branch pipe. If the rotational speed of the first flow-driven component is less than the rotational speed of the second flow-driven component, the heat source passing through the first pipe flows to the second pipe through the second branch pipe.

7. The method according to claim 1, characterized in that, The HVAC system further includes a first return water pipe and a second return water pipe. The first return water pipe connects the heat source storage component and the heat source usage component, and the second return water pipe connects the heat source storage component and the heat source component.

8. A flow control device, characterized in that, The device includes: The acquisition unit is used to acquire the heat source temperature threshold required when the heat source uses the component for heat exchange, and to acquire the heat source temperature delivered to the heat source using component by the temperature sensor. The control unit is configured to control the rotation speed of the first flow drive component and the second flow drive component based on the heat source temperature threshold and the heat source temperature, so as to control the flow rate of the heat source through the first pipe and the second pipe.

9. A heating, ventilation, and air conditioning system, characterized in that, The HVAC system includes: A heat source assembly is used to generate a heat source that acts on the terminal through heat conversion; The first pipeline is used to transport the heat source; The second pipe is used to transport the heat source; A first flow-driven component is used to control the flow rate of the heat source in the first pipe; The second flow drive component is used to control the flow rate of the heat source in the second pipe; Heat source storage component, used to store heat sources; Heat source components are used for energy conversion using heat sources; Temperature sensor used to detect the temperature of the heat source supplied to the heat source-using components; A control component for invoking and running executable program code, causing the HVAC system to perform the method as described in any one of claims 1 to 7.

10. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores computer program code that, when executed, implements the method as described in any one of claims 1 to 7.

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