A control method, system and device of a dual-heat-source air conditioner and a storage medium

Abstract

The embodiment of the application relates to the air conditioning technical field, and particularly relates to a control method, system and device of a double-heat-source air conditioner and a storage medium, the method comprising: controlling the air conditioner to operate in a normal heating mode or a strong heating mode; when the operating mode is the normal heating mode, controlling the air conditioner to heat according to a current outdoor temperature and a current indoor temperature until a target temperature difference is less than a preset difference value, the target temperature difference being a difference value between a latest indoor temperature and a target temperature; when the operating mode is the strong heating mode, controlling the air conditioner to heat according to the current outdoor temperature, the current indoor temperature and a current indoor air outlet temperature until the target temperature difference is less than the preset difference value. The embodiment of the application divides the operating mode of the air conditioner into the normal heating mode and the strong heating mode, so that the air conditioner heats in different modes, and the technical effect of effectively heating in a wider temperature range is achieved.

Description

Technical Field

[0001] This application relates to the field of air conditioning technology, and in particular to a control method, system, device and storage medium for a dual-heat-source air conditioner. Background Technology

[0002] As residents' living standards improve, the demand for heating is constantly increasing, especially in cold northern regions. Current technologies typically employ air-source heat pump air conditioning for heating, while variable frequency enthalpy-enhancing air conditioning is used to improve heating performance in low-temperature environments. The compressor operates at high frequency at low temperatures, and simultaneously replenishes gas to increase enthalpy and enhance heating capacity, thus achieving low-temperature heating.

[0003] However, although air source heat pump air conditioners can improve the heating effect at low temperatures to some extent, their heating performance will decrease as the outdoor ambient temperature decreases. Therefore, air source heat pump air conditioners cannot meet the daily heating needs of users in cold northern regions during winter.

[0004] This shows that there is a technical problem with air source heat pumps in low-temperature scenarios. Summary of the Invention

[0005] This application provides a control method, system, device, and storage medium for a dual-heat-source air conditioner to solve the technical problem of poor heating performance of air-source heat pumps in low-temperature scenarios in the prior art.

[0006] In a first aspect, this application provides a control method for a dual-heat-source air conditioner, comprising:

[0007] Receive control commands for controlling the air conditioner's operating mode;

[0008] In response to the control command, the air conditioner is controlled to operate in an operating mode indicated by the control command, wherein the operating mode includes a normal heating mode or a strong heating mode;

[0009] Receive a temperature adjustment command including a target temperature, wherein the target temperature is the temperature to be adjusted;

[0010] Get the current outdoor temperature and the current indoor temperature;

[0011] When the operating mode is the normal heating mode, the air conditioner is controlled to heat according to the current outdoor temperature and the current indoor temperature until the target temperature difference is less than the preset difference value, wherein the target temperature difference is the difference between the latest indoor temperature and the target temperature;

[0012] When the operating mode is the powerful heating mode, the air conditioner is controlled to heat according to the current outdoor temperature, the current indoor temperature and the current indoor air outlet temperature until the target temperature difference is less than the preset difference value.

[0013] Furthermore, the heating method of the air conditioner includes heat pump heating and / or gas heating.

[0014] Furthermore, controlling the air conditioner to heat according to the current outdoor temperature and the current indoor temperature until the target temperature difference is less than a preset difference includes:

[0015] When the current outdoor temperature is greater than the first preset temperature, the intensity of heat pump heating is controlled by adjusting the operating frequency of the compressor according to the target temperature difference until the target temperature difference is less than the preset difference value, wherein the operating frequency is directly proportional to the intensity of heat pump heating.

[0016] When the current outdoor temperature is less than or equal to the first preset temperature and greater than or equal to the second preset temperature, the heat pump heating is started. When the first indoor temperature is less than the target temperature when the heat pump heating time reaches the first preset time, the gas heating is turned on. The heat pump heating is controlled to the maximum intensity by adjusting the operating frequency to the maximum value. The intensity of gas heating is controlled by adjusting the opening degree of the gas valve until the target temperature difference is less than the preset difference value. The opening degree and the intensity of gas heating are proportional.

[0017] When the current outdoor temperature is lower than the second preset temperature, the opening degree of the gas valve is adjusted according to the target temperature difference to control the intensity of gas heating until the target temperature difference is lower than the preset difference.

[0018] Furthermore, controlling the air conditioner to heat according to the current outdoor temperature, the current indoor temperature, and the current indoor air outlet temperature until the target temperature difference is less than the preset difference includes:

[0019] When the current outdoor temperature is greater than or equal to the second preset temperature, heat pump heating and gas heating are performed simultaneously based on the current outdoor temperature, the current indoor temperature and the current indoor air outlet temperature until the target temperature difference is less than the preset difference.

[0020] When the current outdoor temperature is lower than the second preset temperature, gas heating is performed based on the current outdoor temperature, the current indoor temperature, and the current indoor air outlet temperature until the target temperature difference is less than the preset difference.

[0021] Furthermore, based on the current outdoor temperature, the current indoor temperature, and the current indoor air outlet temperature, heat pump heating and gas heating are simultaneously applied until the target temperature difference is less than the preset difference value, including:

[0022] When the current indoor temperature is less than the first preset temperature difference, the heat pump heating is started. When the current indoor air outlet temperature is less than the third preset temperature, the heat pump heating is controlled to the maximum intensity by adjusting the operating frequency to the maximum value. When the first indoor air outlet temperature is less than the third preset temperature when the heat pump heating at the maximum intensity reaches the second preset time, the gas heating is turned on.

[0023] When the current indoor air outlet temperature is greater than or equal to the third preset temperature, and the current indoor air outlet temperature is less than or equal to the fourth preset temperature, the compressor is kept at its current operating frequency, and the gas valve is kept at its current opening degree.

[0024] When the current indoor air outlet temperature is greater than the fourth preset temperature, the gas valve is closed to stop gas heating, and the heat pump heating is controlled to the minimum intensity by adjusting the operating frequency to the minimum value.

[0025] When the current indoor temperature is greater than or equal to the first preset temperature difference and less than or equal to the second preset temperature difference, the heat pump is activated for heating; when the current indoor air outlet temperature is less than the third preset temperature, the speed of the indoor fan is reduced.

[0026] When the temperature at the second indoor air outlet is lower than the third preset temperature after a third preset time following a reduction in the rotation speed, the heat pump is controlled to heat to its maximum intensity by adjusting the operating frequency to the maximum value.

[0027] When the temperature at the third indoor air outlet is lower than the third preset temperature when the duration of maximum heat pump heating reaches the fourth preset duration, gas heating is activated.

[0028] When the current indoor air outlet temperature is greater than or equal to the third preset temperature and less than or equal to the fourth preset temperature, the compressor is kept at its current operating frequency and the gas valve is kept at its current opening degree.

[0029] When the current indoor air outlet temperature is greater than the fourth preset temperature, the gas heating is stopped by closing the gas valve, the heat pump is controlled to heat to the minimum intensity by adjusting the operating frequency to the minimum value, and the rotation speed is increased.

[0030] When the current indoor temperature is greater than the second preset temperature difference, the air conditioner is controlled to stop.

[0031] Furthermore, based on the current outdoor temperature, the current indoor temperature, and the current indoor air outlet temperature, gas heating is performed until the target temperature difference is less than the preset difference value, including:

[0032] When the current indoor temperature is less than the first preset temperature difference, gas heating is started. When the current indoor air outlet temperature is less than the third preset temperature, the gas heating is controlled to the maximum intensity by adjusting the opening of the gas valve to the maximum opening.

[0033] When the current indoor air outlet temperature is greater than or equal to the third preset temperature and less than or equal to the fourth preset temperature, the gas valve is kept at its current opening.

[0034] When the current indoor air outlet temperature is greater than the fourth preset temperature, the gas heating intensity is controlled to the minimum by adjusting the opening of the gas valve to the minimum opening.

[0035] When the current indoor temperature is greater than or equal to the first preset temperature difference and less than or equal to the second preset temperature difference, gas heating is started. When the current indoor air outlet temperature is less than the third preset temperature, the rotation speed is reduced. After the rotation speed is reduced, when the third indoor air outlet temperature is less than the first preset temperature difference after a fourth preset time, the gas heating is controlled to the maximum intensity by adjusting the opening of the gas valve to the maximum opening.

[0036] When the current indoor air outlet temperature is greater than or equal to the third preset temperature and less than or equal to the fourth preset temperature, the gas valve is kept at its current opening.

[0037] When the current indoor air outlet temperature is greater than the fourth preset temperature, the rotation speed is increased;

[0038] When the current indoor temperature is greater than the second preset temperature difference, the air conditioner is controlled to stop.

[0039] Secondly, this application provides a dual-heat-source air conditioning system, including a control module, a temperature measurement module, a conventional heating module, and a powerful heating module;

[0040] The control module receives control commands for controlling the air conditioner's operating mode.

[0041] The control module responds to the control command and controls the air conditioner to operate in the operating mode indicated by the control command, wherein the operating mode includes a normal heating mode or a strong heating mode.

[0042] The control module receives a temperature adjustment command including a target temperature, wherein the target temperature is the temperature to be adjusted;

[0043] The temperature measurement module detects the current outdoor temperature and the current indoor temperature, and sends the current outdoor temperature and the current indoor temperature to the control module;

[0044] The control module acquires the current outdoor temperature and the current indoor temperature;

[0045] When the operating mode is the conventional heating mode, the control module controls the conventional heating module in the air conditioner to heat according to the current outdoor temperature and the current indoor temperature until the target temperature difference is less than a preset difference value, wherein the target temperature difference is the difference between the latest indoor temperature and the target temperature.

[0046] When the operating mode is the powerful heating mode, the control module controls the powerful heating module in the air conditioner to heat the air until the target temperature difference is less than the preset difference value, based on the current outdoor temperature, the current indoor temperature, and the current indoor air outlet temperature.

[0047] Furthermore, the conventional heating mode includes an evaporator, and the powerful heating mode includes a flue gas heat exchanger;

[0048] The first installation position of the flue gas heat exchanger and the second installation position of the evaporator are interchangeable.

[0049] Thirdly, this application provides an electronic device, comprising:

[0050] One or more processors;

[0051] Memory, used to store one or more programs;

[0052] When the one or more programs are executed by the one or more processors, the one or more processors implement the control method for a dual-heat-source air conditioner as described in the first aspect.

[0053] Fourthly, this application also provides a computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the control method for a dual-heat-source air conditioner as described in the first aspect.

[0054] The technical solution provided in this application embodiment receives a control command for controlling the air conditioner's operating mode; responds to the control command, controls the air conditioner to operate in the operating mode indicated by the control command, wherein the operating mode includes a normal heating mode or a powerful heating mode; by dividing the air conditioner's operating mode into a normal heating mode and a powerful heating mode, the air conditioner heats in different ways under different modes, saving energy while ensuring heating effect under various temperature environments; by setting to receive a temperature adjustment command including a target temperature, wherein the target temperature is the temperature to be adjusted; obtains the current outdoor temperature and the current indoor temperature; when the operating mode is normal heating mode, controls the air conditioner to heat according to the current outdoor temperature and the current indoor temperature until the target temperature difference is less than a preset difference value, wherein the target temperature difference is the difference between the latest indoor temperature and the target temperature; when the operating mode is powerful heating mode, controls the air conditioner to heat according to the current outdoor temperature, the current indoor temperature, and the current indoor air outlet temperature until the target temperature difference is less than the preset difference value. By heating the air conditioner according to the outdoor and indoor temperatures in the normal heating mode, and according to the outdoor, indoor, and indoor air outlet temperatures in the powerful heating mode, the reliability and stability of the air conditioner's heating are ensured. This solves the technical problem of poor heating effect in low-temperature scenarios in existing technologies and achieves effective heating in a wide temperature range. Attached Figure Description

[0055] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with the invention and, together with the description, serve to explain the principles of the invention.

[0056] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0057] One or more embodiments are illustrated by way of example with reference numerals in the accompanying drawings. These illustrations do not constitute a limitation on the embodiments. Elements with the same reference numerals in the drawings are denoted as similar elements. Unless otherwise stated, the figures in the drawings are not to be limited by scale.

[0058] Figure 1 A flowchart illustrating the steps of a control method for a dual-heat-source air conditioner provided in this application embodiment;

[0059] Figure 2 This is a schematic diagram of the structure of a dual-heat-source air conditioning system provided in an embodiment of this application;

[0060] Figure 3A schematic diagram of a preferred dual-heat-source air conditioning system provided in this application embodiment;

[0061] Figure 4 This is a schematic diagram of the structure of an electronic device provided in an embodiment of the present invention. Detailed Implementation

[0062] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0063] The following disclosure provides numerous different embodiments or examples for implementing various structures of the invention. To simplify the disclosure, specific examples of components and arrangements are described below. These are merely examples and are not intended to limit the scope of the invention. Furthermore, reference numerals and / or letters may be repeated in different examples. Such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed.

[0064] To address the technical problem of poor heating performance of air source heat pumps in low-temperature scenarios in existing technologies, this application provides a method. Figure 1 This is a flowchart illustrating the steps of a control method for a dual-heat-source air conditioner, as provided in an embodiment of this application. Figure 1 As shown: The control method for a dual-heat-source air conditioner includes:

[0065] S101: Receives control commands for controlling the air conditioner's operating mode.

[0066] Among them, the control command can be a command sent by the user to select the air conditioner's operating mode.

[0067] Specifically, the control module in the air conditioner receives instructions from the user to control the air conditioner's operating mode. Optionally, the air conditioner's operating mode can be set before leaving the factory, or the user can set or adjust the air conditioner's operating mode during use. The control instructions can be sent from the control terminal to the control module in the air conditioner via infrared or Bluetooth.

[0068] S102: In response to a control command, control the air conditioner to operate in the operating mode indicated by the control command, wherein the operating mode includes a normal heating mode or a strong heating mode.

[0069] Optionally, the operating mode may also include a cooling mode.

[0070] Specifically, the control module in the air conditioner receives control commands sent by the control terminal and responds to the control commands by setting or adjusting the operating mode of the air conditioner. The control commands may include regular heating commands, strong heating commands, and cooling modes.

[0071] S103: Receive a temperature adjustment command including a target temperature, wherein the target temperature is the temperature to be adjusted.

[0072] Among them, the temperature adjustment command can be a command sent by the user to adjust the indoor temperature to the desired temperature.

[0073] Specifically, the control module in the air conditioner receives temperature adjustment commands sent by the user, and the user can set or adjust the temperature according to the scenario.

[0074] S104: Get the current outdoor temperature and the current indoor temperature.

[0075] Optionally, the current outdoor temperature and the current indoor temperature can be detected by temperature sensors installed in the air conditioner.

[0076] Specifically, the air conditioner is equipped with an ambient temperature sensor and an air outlet temperature sensor. The ambient temperature sensor is located in the outdoor unit, and the air inlet temperature sensor is located in the indoor unit. The ambient temperature sensor can detect the current outdoor temperature and send it to the control module, while the air inlet temperature sensor can detect the current indoor temperature and send it to the control module.

[0077] S105: When the operating mode is normal heating mode, the air conditioner is controlled to heat according to the current outdoor temperature and the current indoor temperature until the target temperature difference is less than the preset difference value, where the target temperature difference is the difference between the latest indoor temperature and the target temperature.

[0078] The preset difference can be set before the air conditioner leaves the factory, or it can be set or adjusted by relevant personnel.

[0079] Optionally, the latest indoor temperature is the temperature most recently detected by the air intake temperature sensor. The preset difference can be adjusted according to the required temperature accuracy for the application scenario. For example, the preset difference can be set to 2 for indoor heating and to 0 for laboratory plant cultivation.

[0080] Specifically, when the air conditioner is in normal heating mode, it controls the air conditioner to heat according to the current outdoor temperature and the current indoor temperature. The air intake temperature sensor sends the latest indoor temperature detected to the control module at preset time intervals. The control module calculates the difference between the latest indoor temperature and the target temperature and uses the difference as the target temperature difference. When the target temperature difference is less than the preset difference, the control module controls the air conditioner to stop heating.

[0081] S106: When the operating mode is strong heating mode, the air conditioner is controlled to heat according to the current outdoor temperature, current indoor temperature and current indoor air outlet temperature until the target temperature difference is less than the preset difference value.

[0082] Specifically, when the air conditioner is in strong heating mode, it heats according to the current outdoor temperature, current indoor temperature, and current indoor air outlet temperature until the target temperature difference is less than the preset difference. The indoor unit of the air conditioner is also equipped with an air outlet temperature sensor, which can detect the indoor air outlet temperature.

[0083] The technical solution provided in this application embodiment receives a control command for controlling the air conditioner's operating mode; responds to the control command, controls the air conditioner to operate in the operating mode indicated by the control command, wherein the operating mode includes a normal heating mode or a powerful heating mode; by dividing the air conditioner's operating mode into a normal heating mode and a powerful heating mode, the air conditioner heats in different ways under different modes, saving energy while ensuring heating effect under various temperature environments; by setting to receive a temperature adjustment command including a target temperature, wherein the target temperature is the temperature to be adjusted; obtains the current outdoor temperature and the current indoor temperature; when the operating mode is normal heating mode, controls the air conditioner to heat according to the current outdoor temperature and the current indoor temperature until the target temperature difference is less than a preset difference value, wherein the target temperature difference is the difference between the latest indoor temperature and the target temperature; when the operating mode is powerful heating mode, controls the air conditioner to heat according to the current outdoor temperature, the current indoor temperature, and the current indoor air outlet temperature until the target temperature difference is less than the preset difference value. By heating the air conditioner according to the outdoor and indoor temperatures in the normal heating mode, and according to the outdoor, indoor, and indoor air outlet temperatures in the powerful heating mode, the reliability and stability of the air conditioner's heating are ensured. This solves the technical problem of poor heating effect in low-temperature scenarios in existing technologies and achieves effective heating in a wide temperature range.

[0084] As an alternative embodiment, the heating method of the air conditioner includes heat pump heating and / or gas heating.

[0085] Specifically, heat pump heating can achieve heating through the coordinated operation of an evaporator, liquid pipe, condenser, compressor, and gas pipe. Gaseous refrigerant is discharged from the compressor and enters the condenser to release heat. The condensed liquid refrigerant flows into the evaporator to absorb heat. The evaporator is used to absorb heat from the outside, and the condenser is used to release heat indoors. Gas heating can achieve heat release by burning gas through a burner. In both heat pump heating and gas heating, indoor air enters the air inlet of the indoor unit and flows out from the air outlet, thereby achieving temperature exchange.

[0086] This application embodiment sets up two heating sources of varying intensities, which, while ensuring heating performance under multiple temperature conditions, enables the formation of various heating schemes and achieves energy cost savings.

[0087] As an optional embodiment, controlling the air conditioner to heat according to the current outdoor temperature and the current indoor temperature until the target temperature difference is less than a preset difference includes:

[0088] When the current outdoor temperature is greater than the first preset temperature, the intensity of heat pump heating is controlled by adjusting the operating frequency of the compressor according to the target temperature difference until the target temperature difference is less than the preset difference. The operating frequency is directly proportional to the intensity of heat pump heating.

[0089] The first preset temperature and the preset difference can both be set and adjusted by relevant personnel. The range of the first preset temperature can be -10℃≦c≦10℃, and preferably, the range of the first preset temperature can be -2℃≦a≦2℃.

[0090] Specifically, when the current outdoor temperature is lower than the first preset temperature, the compressor's operating frequency is adjusted based on the target temperature difference. When the target temperature difference is large, the compressor operates at a higher frequency; when the target temperature difference is small, the compressor operates at a lower frequency. The correspondence between the target temperature difference and the compressor frequency can be set and adjusted by relevant personnel according to the scenario. For example, when the temperature difference is greater than or equal to 5℃, it can be understood as a large target temperature difference. In this case, the compressor operates at its highest frequency of 80%. If the latest indoor temperature is -2℃ and the target temperature is 10℃, the target temperature difference is 8℃, which is greater than 5℃. In this case, the compressor operates at its highest frequency of 80% to achieve heat pump heating. The control module repeatedly compares the temperature difference with the preset difference until the target temperature difference is less than the preset difference, at which point the heat pump stops heating.

[0091] For example, when the current outdoor temperature detected by the outdoor ambient temperature sensor is greater than the first preset temperature, only the heat pump heating is turned on, and the compressor adjusts its output capacity according to the temperature difference between the user-set target temperature and the indoor ambient temperature.

[0092] When the current outdoor temperature is less than or equal to the first preset temperature and greater than or equal to the second preset temperature, the heat pump heating is activated. When the first indoor temperature is less than the target temperature when the heat pump heating time reaches the first preset time, the gas heating is activated. The heat pump heating is controlled to the maximum intensity by adjusting the operating frequency to the maximum value. The intensity of gas heating is controlled by adjusting the opening degree of the gas valve until the target temperature difference is less than the preset difference value. The opening degree and the intensity of gas heating are directly proportional.

[0093] The third preset temperature can be set and adjusted by relevant personnel, and its range can be -30℃≦c≦-10℃. Preferably, the range of the third preset temperature can be -25℃≦b≦-20℃.

[0094] Specifically, the maximum frequency of the compressor can be set by relevant personnel before the air conditioner leaves the factory, based on the compressor's specifications and model. Alternatively, it can be set or adjusted by relevant personnel during the use of the air conditioner, based on the degree of wear and tear on the compressor.

[0095] For example, when the current outdoor temperature is less than or equal to the first preset temperature and greater than or equal to the second preset temperature, the heat pump's heating capacity is severely reduced. When the heat pump cannot reach the target temperature for a continuous period of time, the heat pump heating and gas heating are turned on simultaneously, the compressor outputs at maximum capacity, and the gas valve adjusts the gas flow rate according to the temperature difference between the user-set target temperature and the indoor ambient temperature.

[0096] When the current outdoor temperature is lower than the second preset temperature, the opening degree of the gas valve is adjusted according to the target temperature difference to control the intensity of gas heating until the target temperature difference is lower than the preset difference.

[0097] Specifically, when the current outdoor temperature is lower than the second preset temperature, the control module adjusts the opening of the gas valve according to the target temperature difference. When the target temperature difference is large, the opening of the gas valve is adjusted to be larger, and when the target temperature difference is small, the opening of the gas valve is reduced. In actual application, the relationship between the target temperature difference and the gas valve opening can be set or adjusted by relevant personnel according to factors such as gas valve specifications, heating effect or gas valve wear and tear.

[0098] For example, if the current outdoor temperature is lower than the second preset temperature, the heat pump will not have a heating effect or will not be able to start. In this case, only gas heating will be turned on, and the gas valve will adjust the gas flow rate according to the temperature difference between the user-set target temperature and the indoor ambient temperature.

[0099] This application embodiment uses a heat pump for heating when the outdoor temperature is high in the conventional heating mode. When the outdoor temperature is moderate, the heat pump is turned on first. If the heat pump heating cannot achieve the desired heating effect, the gas heating is then turned on. When the outdoor temperature is low, the gas heating is used directly. This ensures the heating effect. When gas heating and heat pump heating are performed simultaneously, the compressor is turned on to the maximum to use as little gas as possible, thereby reducing heating energy consumption and saving heating costs.

[0100] As an optional embodiment, controlling the air conditioner to heat according to the current outdoor temperature, current indoor temperature, and current indoor air outlet temperature until the target temperature difference is less than a preset difference includes:

[0101] When the current outdoor temperature is greater than or equal to the second preset temperature, heat pump heating and gas heating are performed simultaneously based on the current outdoor temperature, current indoor temperature and current indoor air outlet temperature until the target temperature difference is less than the preset difference.

[0102] What we can see is that when the current outdoor temperature is greater than or equal to the second preset temperature, the control module controls the heat pump heating and gas heating to start simultaneously, realizing tiered heating and saving energy while achieving heating effect.

[0103] When the current outdoor temperature is lower than the second preset temperature, gas heating is performed based on the current outdoor temperature, current indoor temperature, and current indoor air outlet temperature until the target temperature difference is less than the preset difference.

[0104] What we can see is that when the current outdoor temperature is lower than the second preset temperature, the control module only controls the gas heating to start, ensuring heating efficiency in low-temperature environments.

[0105] This application embodiment combines gas heating and heat pump heating in a powerful heating mode when the outdoor temperature is not too low, and uses only gas heating when the outdoor temperature is low. This saves heating costs while ensuring the efficiency of low-temperature heating.

[0106] As an optional embodiment, heat pump heating and gas heating are simultaneously performed based on the current outdoor temperature, current indoor temperature, and current indoor air outlet temperature until the target temperature difference is less than a preset difference, including:

[0107] When the current indoor temperature is less than the first preset temperature difference, the heat pump heating is started. When the current indoor air outlet temperature is less than the third preset temperature, the heat pump heating is controlled to the maximum intensity by adjusting the operating frequency to the maximum value. When the first indoor air outlet temperature is less than the third preset temperature when the heat pump heating at the maximum intensity reaches the second preset time, the gas heating is turned on.

[0108] Specifically, when the current indoor temperature is lower than the first preset temperature difference, the control module starts the heat pump heating. When the current indoor air outlet temperature is lower than the third preset temperature, the control module controls the compressor to adjust its operating frequency to the maximum value. When the first indoor air outlet temperature is lower than the third preset temperature after the maximum heat pump heating duration reaches the second preset duration, the control module controls the gas heating to be turned on.

[0109] For example, if the current indoor temperature is less than the first preset temperature difference, the heat pump will be turned on first. If the current indoor air outlet temperature is less than the third preset temperature, the compressor will run at high frequency. If the current indoor air outlet temperature is still less than the third preset temperature after the compressor has been running at high frequency for a period of time, the gas heating will be turned on.

[0110] When the current indoor air outlet temperature is greater than or equal to the third preset temperature and less than or equal to the fourth preset temperature, the compressor is kept at the current operating frequency and the gas valve is kept at the current opening degree.

[0111] The third preset temperature can be set and adjusted by relevant personnel, and its range can be 30℃≦c≦40℃. Preferably, the range of the third preset temperature can be 37℃≦c≦40℃.

[0112] Specifically, when the current indoor air outlet temperature is greater than or equal to the third preset temperature and less than or equal to the fourth preset temperature, the control module controls the compressor to maintain the current operating frequency and controls the gas valve to maintain the current opening degree.

[0113] For example, if the current indoor air outlet temperature is greater than or equal to the third preset temperature, the compressor will maintain its current frequency of operation, and the gas system will maintain its current state.

[0114] When the current indoor air outlet temperature is greater than the fourth preset temperature, the gas valve is closed to stop gas heating, and the heat pump heating is controlled to the minimum intensity by adjusting the operating frequency to the minimum value.

[0115] The fourth preset temperature can be set and adjusted by relevant personnel, and its range can be 40℃≦c≦50℃. Preferably, the range of the fourth preset temperature can be 43℃≦d≦50℃.

[0116] Specifically, the compressor's minimum frequency can be set by relevant personnel before the air conditioner leaves the factory, based on the compressor's specifications and model. Alternatively, it can be set or adjusted by relevant personnel during the air conditioner's use, based on the compressor's wear and tear. When the current indoor air outlet temperature exceeds the fourth preset temperature, the control module closes the gas valve and adjusts the compressor's operating frequency to its minimum value.

[0117] For example, when the current indoor air outlet temperature is higher than the fourth preset temperature, the gas system is shut down and the compressor operates at a reduced frequency.

[0118] When the current indoor temperature is greater than or equal to the first preset temperature difference and less than or equal to the second preset temperature difference, the heat pump heating is started; when the current indoor air outlet temperature is less than the third preset temperature, the speed of the indoor fan is reduced.

[0119] Among these features, the speed of the internal fan can be reduced according to a preset ratio, which can be set and adjusted by relevant personnel.

[0120] Specifically, when the current indoor temperature is greater than or equal to the first preset temperature difference and less than or equal to the second preset temperature difference, the control module controls the heat pump to start heating. When the current indoor air outlet temperature is less than the third preset temperature, the control module controls the indoor fan to reduce its speed.

[0121] Optionally, the first preset temperature difference can be set to a temperature value smaller than the target temperature, and the second preset temperature difference can be set to a temperature value larger than the target temperature. When the current indoor temperature is less than the first preset temperature difference, it indicates that the current indoor temperature and the target temperature are still significantly different. When the current indoor temperature is greater than or equal to the first preset temperature difference and less than or equal to the second preset temperature difference, it indicates that the current indoor temperature and the target temperature are not significantly different. When the current indoor temperature is greater than the second preset temperature difference, it indicates that the current indoor temperature is already higher than the target temperature. Preferably, the first preset temperature difference can be set to be less than the target temperature difference minus 2, and the second preset temperature difference can be set to be less than the target temperature difference plus 2.

[0122] It can be seen that the embodiments of this application determine the heating scheme to be adopted by judging the relationship between the current indoor temperature and the target temperature, thereby ensuring heating efficiency while saving energy consumption.

[0123] For example, when the current indoor temperature is greater than or equal to the first preset temperature difference and less than or equal to the second preset temperature difference, the unit is running and the speed of the indoor fan is reduced.

[0124] When the temperature at the second indoor air outlet is lower than the third preset temperature after the third preset time period following the reduction of the rotation speed, the heat pump is controlled to heat to the maximum intensity by adjusting the operating frequency to the maximum value.

[0125] Specifically, if the temperature at the second indoor air outlet is lower than the third preset temperature after the speed is reduced and the operating frequency of the compressor is at its maximum value after a third preset time, the control module will control the compressor to operate at its maximum value.

[0126] For example, when the temperature at the second indoor air outlet is lower than the third preset temperature after the speed is reduced and the time is the third preset duration, the compressor will operate at high frequency.

[0127] When the temperature at the third indoor air outlet is lower than the third preset temperature when the heat pump heating duration reaches the fourth preset duration at maximum intensity, the gas heating will be turned on.

[0128] When the current indoor air outlet temperature is greater than or equal to the third preset temperature and less than or equal to the fourth preset temperature, the compressor is kept at the current operating frequency and the gas valve is kept at the current opening degree.

[0129] Specifically, when the temperature at the third indoor air outlet is lower than the third preset temperature when the maximum heat pump heating duration reaches the fourth preset duration, the control module controls the gas heating to start. When the current indoor air outlet temperature is greater than or equal to the third preset temperature and less than or equal to the fourth preset temperature, the control module controls the compressor to maintain the current operating frequency and controls the gas valve to maintain the current opening degree.

[0130] For example, when the current indoor air outlet temperature is greater than or equal to the third preset temperature and less than or equal to the fourth preset temperature, the heat pump system maintains the current state.

[0131] When the current indoor air outlet temperature is greater than the fourth preset temperature, the gas valve is closed to stop gas heating, and the heat pump is controlled to heat to the minimum intensity by adjusting the operating frequency to the minimum value and increasing the speed.

[0132] Optionally, the speed of the internal fan can be increased according to a preset ratio, which can be set and adjusted by relevant personnel.

[0133] Specifically, when the current indoor air outlet temperature is greater than the fourth preset temperature, the control module controls the gas valve to close, adjusts the operating frequency to the minimum value, and increases the speed of the indoor fan.

[0134] For example, when the current indoor air outlet temperature is higher than the fourth preset temperature, the gas heating is turned off, the compressor frequency is appropriately reduced, and the indoor fan runs at high speed.

[0135] Optionally, if the air conditioning unit is in standby mode, the current state shall be maintained.

[0136] When the current indoor temperature is greater than the second preset temperature difference, the air conditioner will be shut down.

[0137] This application's embodiments employ a multi-layered approach to heating scenarios where the outdoor temperature is not too low, but the indoor temperature differs significantly from the target temperature. First, a heat pump is used for heating. If the outlet temperature does not reach the preset value, the compressor runs at a higher frequency. If the outlet temperature still cannot reach its maximum value, gas heating is activated. Once the outlet temperature reaches the preset range, the current heating state of both heat pump and gas heating is maintained. Once the outlet temperature exceeds the preset value, gas heating is shut off, saving costs while ensuring stable outlet temperature. Alternatively, when the indoor temperature is close to the target temperature, heat pump heating is used. If the outlet temperature is below the preset value, the indoor fan slows down. If the outlet temperature still does not reach the preset value after a period of time, the compressor frequency is increased. If the outlet temperature still does not reach the preset value, gas heating is activated. This multi-layered approach to increasing heating intensity ensures stable outlet temperature. Finally, when the indoor temperature exceeds the target temperature, the air conditioner is shut off to quickly lower the indoor temperature to the target temperature.

[0138] As an optional embodiment, gas heating is performed based on the current outdoor temperature, current indoor temperature, and current indoor air outlet temperature until the target temperature difference is less than a preset difference, including:

[0139] When the current indoor temperature is less than the first preset temperature difference, gas heating is started. When the current indoor air outlet temperature is less than the third preset temperature, the gas heating is controlled to the maximum intensity by adjusting the opening of the gas valve to the maximum opening.

[0140] Specifically, when the current indoor temperature is less than the first preset temperature difference, the control module controls the gas heating to start. When the current indoor air outlet temperature is less than the third preset temperature, the control module controls the gas valve to open to the maximum degree and controls the gas heating to the maximum intensity.

[0141] For example, if the current indoor temperature is less than the first preset temperature difference, the gas valve will open to its maximum extent.

[0142] When the current indoor air outlet temperature is greater than or equal to the third preset temperature and less than or equal to the fourth preset temperature, the gas valve remains at its current opening.

[0143] Specifically, when the current indoor air outlet temperature is greater than or equal to the third preset temperature and less than or equal to the fourth preset temperature, the gas valve is controlled to maintain its current opening degree.

[0144] For example, when the current indoor air outlet temperature is greater than or equal to the third preset temperature and less than or equal to the fourth preset temperature, the gas system maintains its current state.

[0145] When the current indoor air outlet temperature is greater than the fourth preset temperature, the gas heating intensity is controlled to the minimum by adjusting the opening of the gas valve to the minimum opening.

[0146] Specifically, when the current indoor air outlet temperature is greater than the fourth preset temperature, the control module controls the gas valve to adjust its opening to the minimum.

[0147] For example, when the current indoor air outlet temperature is greater than the fourth preset temperature, the gas valve will operate at its minimum opening.

[0148] When the current indoor temperature is greater than or equal to the first preset temperature difference and less than or equal to the second preset temperature difference, gas heating is started. When the current indoor air outlet temperature is less than the third preset temperature, the speed is reduced. After the speed is reduced, when the third indoor air outlet temperature is less than the first preset temperature difference after a fourth preset time, the gas heating is controlled to the maximum intensity by adjusting the opening of the gas valve to the maximum opening.

[0149] Specifically, when the current indoor temperature is greater than or equal to the first preset temperature difference and less than or equal to the second preset temperature difference, the control module controls the gas heating to start. When the current indoor air outlet temperature is less than the third preset temperature, the control module controls the compressor speed to be reduced. After the speed is reduced, when the third indoor air outlet temperature is less than the first preset temperature difference after a fourth preset time, the control module controls the gas valve opening to be adjusted to the maximum opening.

[0150] For example, when the gas system is running, if the current indoor temperature is greater than or equal to the first preset temperature difference and less than or equal to the second preset temperature difference, the indoor fan speed will decrease. If the indoor air outlet temperature is less than the first preset temperature difference after the fan speed is reduced to the low setting, the gas valve opening will increase.

[0151] When the current indoor air outlet temperature is greater than or equal to the third preset temperature and less than or equal to the fourth preset temperature, the gas valve remains at its current opening.

[0152] Specifically, when the current indoor air outlet temperature is greater than or equal to the third preset temperature and less than or equal to the fourth preset temperature, the control module controls the gas valve to maintain its current opening degree.

[0153] For example, when the current indoor air outlet temperature is greater than or equal to the third preset temperature and less than or equal to the fourth preset temperature, the unit maintains the current state.

[0154] Increase the fan speed when the current indoor air outlet temperature is higher than the fourth preset temperature;

[0155] Specifically, when the current indoor air outlet temperature is higher than the fourth preset temperature, the control module controls the fan to increase its speed.

[0156] For example, when the current indoor air outlet temperature is greater than the fourth preset temperature, the gas valve opening decreases and the indoor fan operates at high speed.

[0157] When the current indoor temperature is greater than the second preset temperature difference, the air conditioner will be shut down.

[0158] Specifically, the control module shuts down the air conditioner when the current indoor temperature is greater than the second preset temperature difference.

[0159] For example, if the current indoor temperature is greater than the second preset temperature difference, the system will stop at the specified temperature point.

[0160] This application embodiment can switch between different heat sources for heating based on outdoor ambient temperature and indoor heat load demand, solving the technical problem of poor low-temperature heating effect of conventional air source heat pumps. Compared with traditional boiler heating, it is low-carbon and environmentally friendly, which is conducive to energy conservation and emission reduction. Compared with conventional air source heat pumps, it has a better low-temperature heating effect, which can ensure room thermal comfort and meet the winter heating needs of cold northern regions. When heat pump heating and gas heating are running simultaneously, this application embodiment can increase the inlet air temperature of the flue gas heat exchanger, thereby increasing the outlet air temperature after flue gas heat exchange.

[0161] Based on the same concept, this application also provides an optional embodiment. Figure 2 This is a schematic diagram of a dual-heat-source air conditioning system provided in an embodiment of this application. Figure 2 As shown, the dual-heat-source air conditioning system includes: a control module 201, a temperature measurement module 202, a conventional heating module 203, and a powerful heating module 204;

[0162] Control module 201 receives control commands for controlling the air conditioner's operating mode;

[0163] The control module 201 responds to the control command and controls the air conditioner to operate in the operating mode indicated by the control command, wherein the operating mode includes a normal heating mode or a strong heating mode.

[0164] Control module 201 receives a temperature adjustment command including a target temperature, wherein the target temperature is the temperature to be adjusted;

[0165] The temperature measurement module 202 detects the current outdoor temperature and the current indoor temperature, and sends the current outdoor temperature and the current indoor temperature to the control module;

[0166] Control module 201 acquires the current outdoor temperature and the current indoor temperature;

[0167] When the operating mode is normal heating mode, the control module 201 controls the normal heating module 203 in the air conditioner to heat according to the current outdoor temperature and the current indoor temperature until the target temperature difference is less than the preset difference value, wherein the target temperature difference is the difference between the latest indoor temperature and the target temperature.

[0168] When the operating mode is strong heating mode, the control module 201 controls the strong heating module 204 in the air conditioner to heat the air until the target temperature difference is less than the preset difference, based on the current outdoor temperature, the current indoor temperature and the current indoor air outlet temperature.

[0169] Furthermore, the conventional heating mode includes an evaporator, while the powerful heating mode includes a flue gas heat exchanger.

[0170] The first setting position of the flue gas heat exchanger and the second setting position of the evaporator are interchangeable.

[0171] Based on the above embodiments, this application also provides a preferred embodiment, such as... Figure 3 As shown: Figure 3 This is a schematic diagram of a preferred dual-heat-source air conditioning system provided in an embodiment of this application.

[0172] The dual-heat-source heat pump air conditioning system in this embodiment can consist of an indoor unit and an outdoor unit. The outdoor unit includes a compressor, condenser, electronic expansion valve, four-way valve, outdoor fan, ambient temperature sensor, and piping. The indoor unit consists of a refrigerant system, a gas system, a flue gas system, an air duct system, and a control system. The heat pump heating module includes at least an evaporator, liquid pipe, condenser, compressor, and gas pipe. The refrigerant system includes an evaporator, refrigerant liquid pipe, and gas pipe; the gas system (i.e., the gas heating module) includes a gas valve, burner, and gas pipe; the flue gas system includes a flue gas heat exchanger, exhaust fan, and exhaust pipe; the air duct system includes an indoor fan and air duct; and the control system includes a controller, an inlet temperature sensor, and an outlet temperature sensor. The system has both cooling and heating functions. When operating in cooling mode, high-temperature, high-pressure gaseous refrigerant is discharged from the compressor, flows through the four-way valve, and enters the condenser to release heat. The condensed liquid refrigerant is throttled by the electronic expansion valve and enters the evaporator to absorb heat, becoming a low-temperature, low-pressure gaseous refrigerant that flows back to the compressor. When a heat pump is operating, high-temperature, high-pressure gaseous refrigerant is discharged from the compressor, flows through a four-way valve, and enters the indoor unit's evaporator to release heat. The condensed liquid refrigerant, after being throttled by an electronic expansion valve, enters the condenser to absorb heat, becoming a low-temperature, low-pressure gaseous refrigerant that flows back to the compressor. When a gas pump is operating, gas first flows from the gas pipe through the gas valve, then enters the burner for ignition and combustion. The high-temperature flue gas produced by combustion enters the flue gas heat exchanger to exchange heat with the indoor air. The flue gas after heat exchange is then extracted by the exhaust fan and discharged outdoors through the exhaust pipe. The gas valve has the function of opening and closing and regulating the gas flow. The flue gas heat exchanger can be a finned tube heat exchanger, where high-temperature flue gas flows inside the tubes and air flows outside. After absorbing heat from the high-temperature flue gas, the air becomes hot air and enters the room. A larger gas flow rate results in more heat generated by combustion, and for the same airflow, more heat is absorbed by the air, resulting in a higher outlet air temperature; a smaller gas flow rate results in less heat generated by combustion, resulting in a lower outlet air temperature. When the indoor unit is running, the indoor fan turns on. Indoor air first exchanges heat with the refrigerant in the evaporator, then with the flue gas before entering the room. The system can be set to two modes: normal heating and powerful heating. In normal heating mode, the system controls the temperature according to the user-set target temperature, prioritizing heat pump heating. If heat pump heating fails to reach the target temperature for a continuous period, gas heating is activated. In powerful heating mode, the system controls the temperature according to the user-set target temperature and outlet air temperature. While reaching the target temperature, it ensures that the outlet air temperature remains within the preset threshold temperature by adjusting compressor output, fan speed, and gas flow.In this embodiment, the positions of the evaporator and flue gas heat exchanger can be interchanged. When the indoor unit is running, the indoor fan is turned on, and the indoor air first exchanges heat with the flue gas through the flue gas heat exchanger, and then exchanges heat with the refrigerant through the evaporator before entering the room. In conventional heat pumps, the evaporator temperature is low during low-temperature cooling, and frost will form on the evaporator. The compressor suction superheat is also low, which can lead to liquid return problems. The interchanged air conditioning system can activate the gas heating function at appropriate times during low-temperature cooling, which can improve the evaporation temperature and the compressor suction superheat, reduce evaporator frost, and improve reliability. However, when the heat pump and gas heating are running simultaneously, the evaporator inlet air temperature may be too high, which may trigger high-pressure protection. Therefore, it is necessary to control the outlet air temperature of the gas heating function.

[0173] like Figure 4 As shown, Figure 4 This is a schematic diagram of the structure of an electronic device provided in an embodiment of the present invention. This application provides a device including a processor 411, a communication interface 412, a memory 413, and a communication bus 414, wherein the processor 411, the communication interface 412, and the memory 413 communicate with each other via the communication bus 414.

[0174] Memory 413 is used to store computer programs;

[0175] In one embodiment of this application, the processor 411, when executing a program stored in the memory 413, implements a control method for a dual-heat-source air conditioner provided in any of the foregoing method embodiments, including:

[0176] Receive control commands for controlling the air conditioner's operating mode;

[0177] In response to a control command, the air conditioner is controlled to operate in the mode indicated by the control command, wherein the operating mode includes a normal heating mode or a strong heating mode;

[0178] Receive a temperature adjustment command including a target temperature, wherein the target temperature is the temperature to be adjusted;

[0179] Get the current outdoor temperature and the current indoor temperature;

[0180] When the operating mode is normal heating mode, the air conditioner is controlled to heat according to the current outdoor temperature and the current indoor temperature until the target temperature difference is less than the preset difference value. The target temperature difference is the difference between the latest indoor temperature and the target temperature.

[0181] When the operating mode is the strong heating mode, the air conditioner controls the heating based on the current outdoor temperature, current indoor temperature and current indoor air outlet temperature until the target temperature difference is less than the preset difference value.

[0182] This application also provides a computer-readable storage medium storing a computer program thereon, which, when executed by a processor, implements the steps of the control method for a dual-heat-source air conditioner as provided in any of the foregoing method embodiments.

[0183] The device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separate, and the components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the modules can be selected to achieve the purpose of this embodiment according to actual needs.

[0184] Through the above description of the embodiments, those skilled in the art can clearly understand that each embodiment can be implemented using software plus a general-purpose hardware platform, or of course, using hardware. Based on this understanding, the above technical solutions, in essence or the parts that contribute to the related technology, can be embodied in the form of software products. Computer software products can be stored in computer-readable storage media, such as ROM / RAM, magnetic disks, optical disks, etc., including several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute the methods of various embodiments or some parts of embodiments.

[0185] It should be understood that the terminology used herein is for the purpose of describing particular exemplary embodiments only and is not intended to be limiting. Unless the context clearly indicates otherwise, the singular forms “a,” “an,” and “” used herein may also indicate the inclusion of the plural forms. The terms “comprising,” “including,” “containing,” and “having” are inclusive and therefore indicate the presence of the stated features, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, steps, operations, elements, components, and / or combinations thereof. The method steps, processes, and operations described herein are not construed as requiring them to be performed in a particular order described or illustrated, unless the order of performance is explicitly indicated. It should also be understood that additional or alternative steps may be used.

[0186] The above description is merely a specific embodiment of the present invention, enabling those skilled in the art to understand or implement the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features claimed herein.

Claims

1. A control method for a dual-heat-source air conditioner, characterized in that, include: Receive control commands for controlling the air conditioner's operating mode; In response to the control command, the air conditioner is controlled to operate in an operating mode indicated by the control command, wherein the operating mode includes a normal heating mode or a strong heating mode; Receive a temperature adjustment command including a target temperature, wherein the target temperature is the temperature to be adjusted; Get the current outdoor temperature and the current indoor temperature; When the operating mode is the normal heating mode, the air conditioner is controlled to heat according to the current outdoor temperature and the current indoor temperature until the target temperature difference is less than the preset difference value, wherein the target temperature difference is the difference between the latest indoor temperature and the target temperature; When the operating mode is the powerful heating mode, the air conditioner is controlled to heat according to the current outdoor temperature, the current indoor temperature and the current indoor air outlet temperature until the target temperature difference is less than the preset difference value, including: when the current outdoor temperature is greater than or equal to the second preset temperature, heat pump heating and gas heating are performed simultaneously according to the current outdoor temperature, the current indoor temperature and the current indoor air outlet temperature until the target temperature difference is less than the preset difference value; The step of simultaneously performing heat pump heating and gas heating based on the current outdoor temperature, the current indoor temperature, and the current indoor air outlet temperature until the target temperature difference is less than the preset difference includes: When the current indoor temperature is less than the first preset temperature difference, the heat pump heating is started. When the current indoor air outlet temperature is less than the third preset temperature, the heat pump heating is controlled to the maximum intensity by adjusting the operating frequency to the maximum value. When the first indoor air outlet temperature is less than the third preset temperature when the heat pump heating at the maximum intensity reaches the second preset time, the gas heating is turned on. When the current indoor air outlet temperature is greater than or equal to the third preset temperature and the current indoor air outlet temperature is less than or equal to the fourth preset temperature, the compressor is kept at the current operating frequency and the gas valve is kept at the current opening degree. When the current indoor air outlet temperature is greater than the fourth preset temperature, the gas valve is closed to stop gas heating, and the heat pump heating is controlled to the minimum intensity by adjusting the operating frequency to the minimum value. When the current indoor temperature is greater than or equal to the first preset temperature difference and less than or equal to the second preset temperature difference, the heat pump is activated for heating; when the current indoor air outlet temperature is less than the third preset temperature, the speed of the indoor fan is reduced. When the temperature at the second indoor air outlet is lower than the third preset temperature after a third preset time following a reduction in the rotation speed, the heat pump is controlled to heat to its maximum intensity by adjusting the operating frequency to the maximum value. When the temperature at the third indoor air outlet is lower than the third preset temperature when the duration of maximum heat pump heating reaches the fourth preset duration, gas heating is activated. When the current indoor air outlet temperature is greater than or equal to the third preset temperature and less than or equal to the fourth preset temperature, the compressor is kept at its current operating frequency and the gas valve is kept at its current opening degree. When the current indoor air outlet temperature is greater than the fourth preset temperature, the gas heating is stopped by closing the gas valve, the heat pump is controlled to heat to the minimum intensity by adjusting the operating frequency to the minimum value, and the rotation speed is increased. When the current indoor temperature is greater than the second preset temperature difference, the air conditioner is controlled to stop.

2. The method according to claim 1, characterized in that, The heating methods of the air conditioner include heat pump heating and / or gas heating.

3. The method according to claim 2, characterized in that, Controlling the air conditioner to heat according to the current outdoor temperature and the current indoor temperature until the target temperature difference is less than a preset difference includes: When the current outdoor temperature is greater than the first preset temperature, the intensity of heat pump heating is controlled by adjusting the operating frequency of the compressor according to the target temperature difference until the target temperature difference is less than the preset difference value, wherein the operating frequency is directly proportional to the intensity of heat pump heating. When the current outdoor temperature is less than or equal to the first preset temperature and greater than or equal to the second preset temperature, the heat pump heating is started. When the first indoor temperature is less than the target temperature when the heat pump heating time reaches the first preset time, the gas heating is turned on. The heat pump heating is controlled to the maximum intensity by adjusting the operating frequency to the maximum value. The intensity of gas heating is controlled by adjusting the opening degree of the gas valve until the target temperature difference is less than the preset difference value. The opening degree and the intensity of gas heating are proportional. When the current outdoor temperature is lower than the second preset temperature, the opening degree of the gas valve is adjusted according to the target temperature difference to control the intensity of gas heating until the target temperature difference is lower than the preset difference.

4. The method according to claim 3, characterized in that, The air conditioner is controlled to heat the room based on the current outdoor temperature, the current indoor temperature, and the current indoor air outlet temperature until the target temperature difference is less than the preset difference value, including: When the current outdoor temperature is lower than the second preset temperature, gas heating is performed based on the current outdoor temperature, the current indoor temperature, and the current indoor air outlet temperature until the target temperature difference is less than the preset difference.

5. The method according to claim 1, characterized in that, Based on the current outdoor temperature, the current indoor temperature, and the current indoor air outlet temperature, gas heating is performed until the target temperature difference is less than the preset difference value, including: When the current indoor temperature is less than the first preset temperature difference, gas heating is started. When the current indoor air outlet temperature is less than the third preset temperature, the gas heating is controlled to the maximum intensity by adjusting the opening of the gas valve to the maximum opening. When the current indoor air outlet temperature is greater than or equal to the third preset temperature and less than or equal to the fourth preset temperature, the gas valve is kept at its current opening. When the current indoor air outlet temperature is greater than the fourth preset temperature, the gas heating intensity is controlled to the minimum by adjusting the opening of the gas valve to the minimum opening. When the current indoor temperature is greater than or equal to the first preset temperature difference and less than or equal to the second preset temperature difference, gas heating is started. When the current indoor air outlet temperature is less than the third preset temperature, the rotation speed is reduced. After the rotation speed is reduced, when the third indoor air outlet temperature is less than the first preset temperature difference after a fourth preset time, the gas heating is controlled to the maximum intensity by adjusting the opening of the gas valve to the maximum opening. When the current indoor air outlet temperature is greater than or equal to the third preset temperature and less than or equal to the fourth preset temperature, the gas valve is kept at its current opening. When the current indoor air outlet temperature is greater than the fourth preset temperature, the rotation speed is increased; When the current indoor temperature is greater than the second preset temperature difference, the air conditioner is controlled to stop.

6. A dual-heat-source air conditioning system, characterized in that, It includes a control module, a temperature measurement module, a conventional heating module, and a powerful heating module; The control module receives control commands for controlling the air conditioner's operating mode. The control module responds to the control command and controls the air conditioner to operate in the operating mode indicated by the control command, wherein the operating mode includes a normal heating mode or a strong heating mode. The control module receives a temperature adjustment command including a target temperature, wherein the target temperature is the temperature to be adjusted; The temperature measurement module detects the current outdoor temperature and the current indoor temperature, and sends the current outdoor temperature and the current indoor temperature to the control module; The control module acquires the current outdoor temperature and the current indoor temperature; When the operating mode is the conventional heating mode, the control module controls the conventional heating module in the air conditioner to heat according to the current outdoor temperature and the current indoor temperature until the target temperature difference is less than a preset difference value, wherein the target temperature difference is the difference between the latest indoor temperature and the target temperature. When the operating mode is the powerful heating mode, the control module controls the powerful heating module in the air conditioner to heat the target temperature difference until it is less than the preset difference, based on the current outdoor temperature, the current indoor temperature, and the current indoor air outlet temperature. This includes: when the current outdoor temperature is greater than or equal to a second preset temperature, simultaneously performing heat pump heating and gas heating based on the current outdoor temperature, the current indoor temperature, and the current indoor air outlet temperature until the target temperature difference is less than the preset difference; the simultaneous performance of heat pump heating based on the current outdoor temperature, the current indoor temperature, and the current indoor air outlet temperature... The process involves using both heat pump and gas heating until the target temperature difference is less than the preset difference, including: activating heat pump heating when the current indoor temperature is less than a first preset temperature difference; controlling the heat pump to its maximum intensity by adjusting the operating frequency to its maximum value when the current indoor air outlet temperature is less than the third preset temperature when the heat pump heating at maximum intensity lasts for a second preset duration; and activating gas heating when the current indoor air outlet temperature is greater than or equal to the third preset temperature and less than or equal to a fourth preset temperature. Finally, maintaining the compressor at its current operating frequency and ensuring gas heating continues to operate. The gas valve is currently open; when the current indoor air outlet temperature is greater than the fourth preset temperature, the gas valve is closed to stop gas heating, and the operating frequency is adjusted to the minimum value to control the heat pump heating to the minimum intensity; when the current indoor temperature is greater than or equal to the first preset temperature difference and less than or equal to the second preset temperature difference, the heat pump heating is started; when the current indoor air outlet temperature is less than the third preset temperature, the speed of the indoor fan is reduced; when the second indoor air outlet temperature is less than the third preset temperature after the speed is reduced for a third preset time, the operating frequency is adjusted to the maximum value to control the heat pump heating to the maximum intensity; when When the temperature at the third indoor air outlet is lower than the third preset temperature when the heat pump heating duration reaches the fourth preset duration at maximum intensity, gas heating is activated; when the current indoor air outlet temperature is greater than or equal to the third preset temperature and less than or equal to the fourth preset temperature, the compressor is maintained at its current operating frequency, and the gas valve is maintained at its current opening degree; when the current indoor air outlet temperature is greater than the fourth preset temperature, gas heating is stopped by closing the gas valve, and the heat pump heating is controlled to its minimum intensity by adjusting the operating frequency to the minimum value, thereby increasing the speed; when the current indoor temperature is greater than the second preset temperature difference, the air conditioner is controlled to shut down.

7. The system according to claim 6, characterized in that, The conventional heating mode includes an evaporator, and the powerful heating mode includes a flue gas heat exchanger. The first installation position of the flue gas heat exchanger and the second installation position of the evaporator are interchangeable.

8. An electronic device, characterized in that, include: One or more processors; Memory, used to store one or more programs; When the one or more programs are executed by the one or more processors, the one or more processors implement the control method for a dual-heat-source air conditioner as described in any one of claims 1 to 5.

9. A computer-readable storage medium having a computer program stored thereon, characterized in that, When the computer program is executed by the processor, it implements the control method of the dual heat source air conditioner as described in any one of claims 1 to 5.

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