Control method, system and equipment of heat supply equipment

Abstract

The invention discloses a control method, system and equipment for heat supply equipment. The control method of the heat supply equipment comprises the steps that the cost of each type of heat supply source for providing unit heat is obtained; in the automatic mode, the heat supply priority of each type of heat supply source is determined according to the unit heat supply cost of each type of heat supply source; and according to the heat supply priority, the heat supply sources of the type with the high heat supply priority are started preferentially for heat supply, and the number of the started heat supply sources is adjusted according to the outlet water temperature. By the adoption of the intelligent linkage control method and device, intelligent linkage control over different types and different numbers of heat supply equipment is achieved through the cost priority principle and the stepped start-stop strategy, and the cost can be effectively reduced under the condition that the heat supply requirement is met.

Description

Technical Field

[0001] This application relates to the field of heating technology, and in particular to a control method, system and equipment for heating equipment. Background Technology

[0002] In the heating sector, boilers (primarily powered by natural gas) and air-source heat pumps (primarily powered by electricity) are two common types of heating equipment, used in residential heating, commercial building heating, and industrial production heat needs. However, with electricity and gas prices fluctuating in the market, traditional single-energy heating systems face the following problems: High operating costs: Relying solely on a single boiler or heat pump unit makes it impossible to adjust operating strategies based on real-time energy prices, which can easily lead to high costs during peak energy price periods (such as when gas prices rise in winter, the cost of a pure boiler system surges).

[0003] Insufficient heating stability: When a single piece of equipment fails or is overloaded, the entire system needs to be shut down for maintenance, resulting in heating interruption; at the same time, the equipment can only adapt to temperature requirements by adjusting its own load, which easily leads to fluctuations in the outlet water temperature.

[0004] Low energy efficiency: The lack of coordinated control of the two energy sources makes it impossible to dynamically match the optimal equipment combination according to ambient temperature and heating demand, resulting in energy waste. Summary of the Invention

[0005] Therefore, it is necessary to provide a control method, system, and equipment for heating equipment to address the above-mentioned technical problems. By prioritizing cost and employing a tiered start-stop strategy, intelligent linkage control of different types and quantities of heating equipment can be achieved, effectively reducing costs while meeting heating requirements.

[0006] In a first aspect, this application provides a control method for a heating device, the heating device including various types of heat sources, the control method comprising: The cost of obtaining a unit of heat provided by each type of heat source; In automatic mode, the heating priority of each type of heat source is determined based on the cost of providing a unit of heat for each type of heat source; According to the heating priority, heating sources with higher heating priority are activated first, and the number of activated heating sources is adjusted according to the outlet water temperature.

[0007] In some examples, the cost of obtaining a unit of heat provided by each type of heat source includes: Receive energy price information for each type; Based on the energy price information for each type, the cost per unit of heat supplied by the corresponding type of heat source is obtained.

[0008] In some examples, the heat source includes a first type of heat source and a second type of heat source, and determining the heating priority of each type of heat source based on the cost of providing a unit of heat from each type of heat source includes: Compare the cost per unit of heat provided by the first type of heat source and the cost per unit of heat provided by the second type of heat source. If the cost per unit of heat provided by the first type of heat source is less than the cost per unit of heat provided by the second type of heat source, then the heating priority of the first type of heat source is determined to be higher than that of the second type of heat source; otherwise, the heating priority of the second type of heat source is higher than that of the first type of heat source.

[0009] In some examples, the step of prioritizing the activation of heating sources with higher heating priority based on the heating priority, and adjusting the number of activated heating sources according to the outlet water temperature, includes: If the heating priority of the first type of heat source is higher than that of the second type of heat source, start one of the first type of heat sources and adjust the operating power of the started first type of heat source. If the outlet water temperature still does not reach the set range after the predetermined time, then the first type of heat source that is in standby will be added one by one. If all first-type heating sources have been activated, but the outlet water temperature still has not reached the set range, then the second-type heating source is activated for heating compensation.

[0010] In some examples, the step of prioritizing the activation of heating sources with higher heating priority based on the heating priority, and adjusting the number of activated heating sources according to the outlet water temperature, includes: If the heating priority of the second type of heating source is higher than that of the first type of heating source, start one of the second type of heating sources and adjust the operating load of the started second type of heating source. If the outlet water temperature still does not reach the set range, then add a second type of heating source that is in standby mode one by one.

[0011] In some examples, it also includes: During the heating process, if the outlet water temperature exceeds the set temperature, the number of heating sources to be activated is determined. If the number of heating sources activated is greater than one, then the number of activated heating sources will be reduced one by one. If only one heating source is running, then the heating supply from that source will be stopped immediately.

[0012] In some examples, the first type of heat source is a heat pump, and the second type of heat source is a boiler.

[0013] In some examples, it also includes: Receive mode switching signal; Switch to manual mode according to the mode switching signal; In the manual mode, the specified type and number of heat sources are activated to provide heat according to the user's activation command.

[0014] Secondly, a control system for a heating device is provided, the heating device including various types of heat sources, and the control system includes: A receiving device used to obtain the cost of providing a unit of heat from each type of heat source; A comparison unit is used, in automatic mode, to determine the heating priority of each type of heating source based on the cost of providing a unit of heat for each type of heating source. The control unit is used to prioritize the activation of heating sources with higher heating priority according to the heating priority, and to adjust the number of activated heating sources according to the outlet water temperature.

[0015] Thirdly, a computer device is provided, including a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein when the processor executes the program, it implements the steps of the control method for the heating device of the first aspect and any possible implementation thereof.

[0016] The embodiments of this application first obtain the cost per unit of heat provided by each type of heat source. Then, based on the cost per unit of heat provided by each type of heat source, the heating priority order of each type of heat source is determined. Finally, according to the heating priority order, the type of heat source with the highest heating priority is activated first, and the number of activated heat sources is adjusted according to the outlet water temperature. This solves the problems of crude control, poor economy, and high equipment wear and tear in the prior art. Through the cost-priority principle and the tiered start-stop strategy, intelligent linkage control of different types and numbers of heating equipment is achieved, effectively reducing costs while meeting heating requirements. Attached Figure Description

[0017] Other features, objects, and advantages of this application will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings: Figure 1 This is a flowchart of the control method for the heating equipment provided in the embodiments of this application; Figure 2 This is a detailed flowchart of the control method for the heating equipment provided in the embodiments of this application; Figure 3 This is a structural block diagram of the control system of the heating equipment provided in the embodiments of this application; Figure 4 This is a structural block diagram of the computer device provided in the embodiments of this application. Detailed Implementation

[0018] The present application will now be described in further detail with reference to the embodiments and accompanying drawings. It should be understood that the specific embodiments described herein are for illustrative purposes only and are not intended to limit the application. Furthermore, it should be noted that, for ease of description, only the parts relevant to the application are shown in the accompanying drawings.

[0019] It should be noted that, unless otherwise specified, the embodiments and features of the embodiments in this application can be combined with each other. The present application will now be described in detail with reference to the accompanying drawings and embodiments.

[0020] The control method, system, and device of the heating equipment according to embodiments of this application are described in detail below with reference to the accompanying drawings.

[0021] Figure 1 This is a flowchart of a control method for a heating device according to an embodiment of this application. Figure 1 As shown, the control method for a heating device according to an embodiment of this application includes the following steps: S101: Obtain the cost per unit of heat provided by each type of heat source.

[0022] Heating equipment includes various types of heat sources, such as heat sources that use gas as energy (e.g., boilers) and heat sources that use electricity as energy (e.g., heat pumps).

[0023] In one embodiment of this application, obtaining the cost per unit of heat provided by each type of heat source includes: receiving energy price information for each type; and obtaining the cost per unit of heat provided by the corresponding type of heat source based on the energy price information for each type.

[0024] In the above example, the way to receive the price information for each type of energy is to obtain the price information for each type of energy from official channels. For example, for natural gas, the price per cubic meter of natural gas can be obtained from the corresponding official channels. Similarly, for electricity, the price per kilowatt-hour can be obtained from the corresponding official channels.

[0025] It should be noted that unit prices may vary at different times. Furthermore, different cumulative electricity or gas consumption will result in different tiered unit prices. Therefore, in the specific example of this application, the latest energy price information for each type can be periodically obtained from official channels for the current time period. For example, the latest energy price information can be obtained from official channels every 30 minutes.

[0026] With the latest energy price information, the cost per unit of heat provided by each type of heating source can be calculated. Taking electricity and gas as examples, after obtaining the real-time electricity price (yuan / kWh) and the real-time gas price (yuan / cubic meter), the cost per unit of heat from a heat pump (yuan / kWh) and the cost per unit of heat from a boiler (yuan / kWh) can be calculated based on these prices.

[0027] S102: In automatic mode, the heating priority of each type of heat source is determined based on the cost of providing a unit of heat for each type of heat source.

[0028] In a specific example, an automatic mode can be provided, and a manual mode can also be provided. When switched to automatic mode, the heating priority of each type of heating source is determined based on the cost of providing a unit of heat from each type of heating source. Manual mode switching is possible, for example: receiving a mode switching signal; switching to manual mode based on the mode switching signal; in manual mode, activating a specified type and number of heating sources for heating according to the user's activation command.

[0029] For example, suppose the heat source includes two types of heat sources, namely a first type of heat source and a second type of heat source, where the first type of heat source is, for example, a heat pump, and the second type of heat source is, for example, a boiler. Then, based on the cost of providing a unit of heat from each type of heat source, the heating priority of each type of heat source is determined, including: comparing the cost of providing a unit of heat from the first type of heat source and the cost of providing a unit of heat from the second type of heat source; if the cost of providing a unit of heat from the first type of heat source is less than the cost of providing a unit of heat from the second type of heat source, then the heating priority of the first type of heat source is determined to be higher than the heating priority of the second type of heat source; otherwise, the heating priority of the second type of heat source is determined to be higher than the heating priority of the first type of heat source.

[0030] Taking heat pumps and boilers as examples, if the cost per unit of heat from a heat pump is lower than that of a boiler, the heat pump will be started first and the system will enter the heat pump linkage control sequence; if the cost per unit of heat from a boiler is lower than that of a heat pump, the boiler will be started first and the system will enter the boiler linkage control sequence.

[0031] S103: According to the heating priority, heat sources with higher heating priority are turned on first to provide heating, and the number of heat sources turned on is adjusted according to the outlet water temperature.

[0032] In one embodiment of this application, heating sources of the type with higher heating priority are activated first, and the number of activated heating sources is adjusted according to the outlet water temperature. This includes: when the heating priority of the first type of heating source is higher than that of the second type of heating source, one first type of heating source is activated, and the operating power of the activated first type of heating source is adjusted; after a predetermined time, if the outlet water temperature still does not reach the set range, one more first type of heating source is activated; if all first type of heating sources have been activated, but the outlet water temperature still does not reach the set range, a second type of heating source is activated for heating compensation.

[0033] The scheduled time is, for example, 30 minutes.

[0034] Combination Figure 2 As shown, under the heat pump linkage control sequence, one heat pump is started first, and its operating power is adjusted by PID (Proportional-Integral-Derivative). If the outlet water temperature still does not reach the set range after a predetermined time or after PID adjustment, heat pumps in standby mode are started one by one. When all heat pumps have started, but the outlet water temperature still fails to reach the set range, a boiler is automatically started to compensate for the heating demand. In this way, heating costs can be effectively saved while meeting heating needs.

[0035] Furthermore, if the cost per unit of heat from the boiler is lower than the cost per unit of heat from the heat pump, then according to the heating priority, the type of heat source with the higher heating priority will be activated first for heating, and the number of activated heat sources will be adjusted according to the outlet water temperature. This includes: if the heating priority of the second type of heat source (such as the boiler) is higher than that of the first type of heat source, one second type of heat source will be activated, and the operating load of the activated second type of heat source will be adjusted; if the outlet water temperature still does not reach the set range, then one more second type of heat source will be activated in standby mode.

[0036] Combination Figure 2 As shown, under the boiler linkage control sequence, one boiler is started first, and its operating load is adjusted by PID control. If the temperature still does not meet the target, then one more boiler is started up from standby.

[0037] During the heating process, if the outlet water temperature exceeds the set temperature, the number of heating sources activated is determined; if the number of activated heating sources is greater than one, the number of activated heating sources is reduced one by one; if only one heating source is activated, the heating source is stopped directly.

[0038] Combination Figure 2 As shown, when the outlet water temperature exceeds the set temperature, the system detects the total number of currently operating heating sources. If the total number of currently operating heating sources is greater than one, one operating heating source is removed. If only one heating source remains operating, all heating is stopped to prevent overheating. This improves the user experience of the heating system.

[0039] In one embodiment of this application, the control method for a heating device further includes: receiving a mode switching signal; switching to a manual mode according to the mode switching signal; and in the manual mode, activating a specified type and a specified number of heating sources for heating according to a user's activation command. Figure 2 As shown, if switched to manual mode, the user can selectively start the heat pump or boiler for heating.

[0040] The control method for the heating equipment in this application embodiment can be implemented by a system composed of a PLC (Programmable Logic Controller), a DCS (Distributed Control System), or a dedicated industrial computer. The system has a built-in or external temperature sensor for monitoring the outlet water temperature and communicates with an energy price publishing server via a network module. The control program for the heating equipment control method is written according to the above logic and is used to control the start-up and shutdown of the heat pump and boiler, as well as power regulation.

[0041] During actual operation, the system first initializes and enters automatic mode. Subsequently, it will continuously execute closed-loop control of cost calculation, energy selection, temperature judgment, and tiered load adjustment until it is manually shut down or switched to manual mode.

[0042] Table 1 shows the system composition and core parameters. Table 1

[0043] The core parameters include cost parameters, temperature parameters, and operational parameters, among which: Cost parameters: real-time electricity price (RMB / kWh), real-time gas price (RMB / cubic meter), heat pump unit heat cost (calculated based on electricity price, RMB / kWh), boiler unit heat cost (calculated based on gas price, RMB / kWh); Temperature parameters: system set outlet water temperature range (e.g., 45℃-50℃), real-time outlet water temperature (collected by temperature sensor); Operational parameters: number of devices started (single / multiple), operating mode (automatic / manual), set cycle judgment time (e.g., re-execute cost and temperature judgment every 30 minutes).

[0044] According to the control method for heating equipment in this application embodiment, in automatic mode, the cost per unit of heat provided by each type of heat source is first obtained. Then, based on the cost per unit of heat provided by each type of heat source, the heating priority order of each type of heat source is determined. Finally, according to the heating priority order, the type of heat source with higher heating priority is activated first for heating, and the number of activated heat sources is adjusted according to the outlet water temperature. This solves the problems of crude control, poor economy, and high equipment wear in existing heating equipment. Through the cost-priority principle and a tiered start-stop strategy, intelligent linkage control of different types and quantities of heating equipment is achieved, effectively reducing costs while meeting heating requirements.

[0045] Figure 3 This is a structural block diagram of a control system for a heating device according to an embodiment of this application. Figure 3 As shown, the control system of the heating equipment according to an embodiment of this application includes: a receiving device 310, a comparison unit 320, and a control unit 330, wherein: Receiving device 310 is used to obtain the cost of providing a unit of heat from each type of heat source; The comparison unit 320 is used, in automatic mode, to determine the heating priority of each type of heating source based on the cost of providing a unit of heat for each type of heating source. The control unit 330 is used to prioritize the activation of heating sources of the type with higher heating priority according to the heating priority, and to adjust the number of activated heating sources according to the outlet water temperature.

[0046] According to the control system of the heating equipment in the embodiments of this application, in automatic mode, the cost per unit of heat provided by each type of heat source is first obtained. Then, based on the cost per unit of heat provided by each type of heat source, the heating priority order of each type of heat source is determined. Finally, according to the heating priority order, the type of heat source with higher heating priority is activated first, and the number of activated heat sources is adjusted according to the outlet water temperature. This solves the problems of crude control, poor economy, and high equipment wear in the prior art. Through the cost-priority principle and a tiered start-stop strategy, intelligent linkage control of different types and quantities of heating equipment is achieved, effectively reducing costs while meeting heating requirements.

[0047] Specific limitations regarding the control system of the heating equipment can be found in the limitations of the control method for the heating equipment described above, and will not be repeated here. Each module of the control system of the aforementioned heating equipment can be implemented entirely or partially through software, hardware, or a combination thereof. These modules can be embedded in or independent of the processor in a computer device in hardware form, or stored in the memory of the computer device in software form, so that the processor can call and execute the operations corresponding to each module.

[0048] In one embodiment, a computer device is provided. Figure 4 This is a structural block diagram of a computer device provided in an embodiment of this application. The computer device includes a memory and a processor. The memory stores a computer program, and the processor executes the computer program to implement the aforementioned control method embodiment for the heating equipment. For example, it executes: obtaining the cost per unit of heat provided by each type of heat source; In automatic mode, the heating priority of each type of heat source is determined based on the cost of providing a unit of heat for each type of heat source; According to the heating priority, heating sources with higher heating priority are activated first, and the number of activated heating sources is adjusted according to the outlet water temperature.

[0049] This application also provides a computer-readable storage medium storing a computer program. When the processor executes the computer program, it implements the aforementioned control method embodiment for the heating equipment. For example, it executes: obtaining the cost per unit of heat provided by each type of heat source; In automatic mode, the heating priority of each type of heat source is determined based on the cost of providing a unit of heat for each type of heat source; According to the heating priority, heating sources with higher heating priority are activated first, and the number of activated heating sources is adjusted according to the outlet water temperature.

[0050] This application provides a computer program product including instructions that, when executed, cause the method described in this application embodiment to be performed. For example, it can execute... Figure 1 The steps of the control method for the heating equipment shown include, for example, obtaining the cost of providing a unit of heat from each type of heat source; In automatic mode, the heating priority of each type of heat source is determined based on the cost of providing a unit of heat for each type of heat source; According to the heating priority, heating sources with higher heating priority are activated first, and the number of activated heating sources is adjusted according to the outlet water temperature.

[0051] Those skilled in the art will understand that all or part of the processes in the methods of the above embodiments can be implemented by a computer program instructing related hardware. The computer program can be stored in a non-volatile computer-readable storage medium, and when executed, it can include the processes of the embodiments of the methods described above. Any references to memory, storage, databases, or other media used in the embodiments provided in this application can include at least one of non-volatile and volatile memory. Non-volatile memory can include read-only memory (ROM), magnetic tape, floppy disk, flash memory, or optical storage, etc. Volatile memory can include random access memory (RAM) or external cache memory. By way of illustration and not limitation, RAM can be in various forms, such as static random access memory (SRAM) or dynamic random access memory (DRAM), etc.

[0052] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0053] The above embodiments merely illustrate several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A control method for a heating equipment, characterized in that, The heating equipment includes various types of heat sources, and the control method includes: The cost of obtaining a unit of heat provided by each type of heat source; In automatic mode, the heating priority of each type of heat source is determined based on the cost of providing a unit of heat for each type of heat source; According to the heating priority, heating sources with higher heating priority are activated first, and the number of activated heating sources is adjusted according to the outlet water temperature.

2. The control method for the heating equipment according to claim 1, characterized in that, The cost of obtaining a unit of heat from each type of heat source includes: Receive energy price information for each type; Based on the energy price information for each type, the cost per unit of heat supplied by the corresponding type of heat source is obtained.

3. The control method for the heating equipment according to claim 1 or 2, characterized in that, The heat source includes a first type of heat source and a second type of heat source. Determining the heating priority of each type of heat source based on the cost of providing a unit of heat from each type of heat source includes: Compare the cost per unit of heat provided by the first type of heat source and the cost per unit of heat provided by the second type of heat source. If the cost per unit of heat provided by the first type of heat source is less than the cost per unit of heat provided by the second type of heat source, then the heating priority of the first type of heat source is determined to be higher than that of the second type of heat source; otherwise, the heating priority of the second type of heat source is higher than that of the first type of heat source.

4. The control method for the heating equipment according to claim 3, characterized in that, The step of prioritizing the activation of heating sources with higher heating priority based on the heating priority, and adjusting the number of activated heating sources according to the outlet water temperature, includes: If the heating priority of the first type of heat source is higher than that of the second type of heat source, start one of the first type of heat sources and adjust the operating power of the started first type of heat source. If the outlet water temperature still does not reach the set range after the predetermined time, then the first type of heat source that is in standby will be added one by one. If all first-type heating sources have been activated, but the outlet water temperature still has not reached the set range, then the second-type heating source is activated for heating compensation.

5. The control method for the heating equipment according to claim 3, characterized in that, The step of prioritizing the activation of heating sources with higher heating priority based on the heating priority, and adjusting the number of activated heating sources according to the outlet water temperature, includes: If the heating priority of the second type of heating source is higher than that of the first type of heating source, start one of the second type of heating sources and adjust the operating load of the started second type of heating source. If the outlet water temperature still does not reach the set range, then add a second type of heating source that is in standby mode one by one.

6. The control method for the heating equipment according to claim 4 or 5, characterized in that, Also includes: During the heating process, if the outlet water temperature exceeds the set temperature, the number of heating sources to be activated is determined. If the number of heating sources activated is greater than one, then the number of activated heating sources will be reduced one by one. If only one heating source is running, then the heating supply from that source will be stopped immediately.

7. The control method for the heating equipment according to claim 3, characterized in that, The first type of heat source is a heat pump, and the second type of heat source is a boiler.

8. The control method for the heating equipment according to claim 1, characterized in that, Also includes: Receive mode switching signal; Switch to manual mode according to the mode switching signal; In the manual mode, the specified type and number of heat sources are activated to provide heat according to the user's activation command.

9. A control system for a heating equipment, characterized in that, The heating equipment includes various types of heat sources, and the control system includes: A receiving device used to obtain the cost of providing a unit of heat from each type of heat source; A comparison unit is used, in automatic mode, to determine the heating priority of each type of heating source based on the cost of providing a unit of heat for each type of heating source. The control unit is used to prioritize the activation of heating sources with higher heating priority according to the heating priority, and to adjust the number of activated heating sources according to the outlet water temperature.

10. A computer device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, characterized in that, When the processor executes the program, it implements the control method for the heating equipment according to any one of claims 1-8.

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