Control methods for environmental control equipment, environmental control equipment, and storage media

Abstract

This invention discloses a control method for an environmental control device, the environmental control device itself, and a storage medium. The environmental control device includes a heat pump system and a refrigerant circulation system. The refrigerant circulation system includes a manifold, a circulating pump, and terminal heat exchange equipment. The circulating pump drives the circulation of the refrigerant in the refrigerant circulation system, and the manifold is used for the collection and distribution of the supply and return liquids of the terminal heat exchange equipment. The method includes: acquiring the operating characteristic parameters of the manifold; determining the target operating parameters of the circulating pump based on the operating characteristic parameters; and controlling the operation of the circulating pump based on the target operating parameters. This invention aims to improve the comfort of indoor spaces regulated by the environmental control device and improve the energy efficiency of the circulating pump.

Description

Technical Field

[0001] This invention relates to the field of environmental control equipment technology, and more particularly to control methods, environmental control equipment, and storage media for environmental control equipment. Background Technology

[0002] In addition to traditional air conditioners, environmental control equipment equipped with heat pump systems and refrigerant circulation systems (such as water circulation systems) is now used to provide the required cooling or heating for indoor environmental control. The refrigerant circulation system can transfer energy to the indoor environment for heat exchange through circulating refrigerant in order to regulate the environmental parameters of the indoor environment.

[0003] However, the circulation pump used to drive the refrigerant circulation in the refrigerant circulation system is generally controlled according to the temperature difference between the refrigerant temperature and the target temperature in order to maintain the refrigerant temperature near the target temperature. This can easily lead to a mismatch between the actual energy output of the terminal heat exchange equipment and the actual load demand of the indoor space regulated by the equipment, affecting indoor comfort and wasting energy. Summary of the Invention

[0004] The main objective of this invention is to provide a control method, an environmental conditioning device, and a storage medium for an environmental conditioning device, aiming to improve the comfort of indoor spaces regulated by the environmental device and to improve the energy efficiency of the circulating pump.

[0005] To achieve the above objectives, the present invention provides a control method for an environmental conditioning device. The environmental conditioning device includes a heat pump system and a refrigerant circulation system. The refrigerant circulation system includes a manifold, a circulating pump, and a terminal heat exchange device. The circulating pump drives the circulation of the refrigerant in the refrigerant circulation system. The manifold is used for the collection and distribution of the supply and return liquids of the terminal heat exchange device. The control method for the environmental conditioning device includes the following steps:

[0006] Obtain the operating characteristic parameters of the water distribution manifold;

[0007] The target operating parameters of the circulating pump are determined based on the operating characteristic parameters.

[0008] The operation of the circulating pump is controlled according to the target operating parameters.

[0009] Optionally, the manifold includes a distribution valve for distributing refrigerant to the terminal heat exchanger, and the operating characteristic parameters include the total number of the distribution valves and / or the open / closed state of the distribution valves. The step of determining the target operating parameters of the circulating pump based on the operating characteristic parameters includes:

[0010] The target operating parameters are determined based on the total number and / or the opening / closing state.

[0011] Optionally, the step of determining the target operating parameters based on the total number and / or the open / closed state includes:

[0012] When the total number is greater than the preset value, the target operating parameters are determined based on the opening and closing status of all the water distribution valves.

[0013] Optionally, the step of determining the target operating parameters based on the open / closed states of all the water distribution valves includes:

[0014] The statistical number of the water distribution valves that are in the open state is determined based on all the described open and closed states;

[0015] The target operating parameters are determined based on the statistical data.

[0016] Optionally, the target operating parameters include a target rotational speed, and the step of determining the target operating parameters based on the statistical data includes:

[0017] Determine the ratio of the statistical quantity to the total number;

[0018] The target rotational speed is determined based on the ratio, and the target rotational speed is positively correlated with the ratio.

[0019] Optionally, the step of determining the target rotational speed based on the ratio includes:

[0020] Determine the target numerical range in which the ratio falls;

[0021] The target rotational speed is determined based on the target numerical range.

[0022] Optionally, after the step of obtaining the operating characteristic parameters of the water distributor, the method further includes:

[0023] When the total number is less than or equal to the preset value, the target operating parameters are determined based on the indoor ambient temperature corresponding to the terminal heat exchange device.

[0024] Optionally, the target operating parameters include a target rotational speed, and the step of determining the target operating parameters based on the indoor ambient temperature corresponding to the terminal heat exchanger includes:

[0025] Determine the temperature difference between the ambient temperature and the corresponding set temperature;

[0026] The target rotational speed is determined based on the temperature difference value.

[0027] Optionally, the step of determining the target rotational speed based on the temperature difference value includes:

[0028] Determine the target temperature range in which the temperature difference value lies;

[0029] The target rotational speed is determined based on the target temperature difference range.

[0030] Optionally, the step of determining the target rotational speed based on the temperature difference value includes:

[0031] The target correspondence is obtained based on the heat exchange mode of the environmental conditioning equipment;

[0032] Based on the target correspondence, the target rotational speed corresponding to the temperature difference value is determined.

[0033] Furthermore, in order to achieve the above objectives, this application also proposes an environmental control device, which includes:

[0034] Heat pump system;

[0035] A refrigerant circulation system, comprising a manifold, a circulation pump, and terminal heat exchange equipment, wherein the circulation pump is used to drive the circulation of refrigerant in the refrigerant circulation system, and the manifold is used for the collection and distribution of supply and return liquids of the terminal heat exchange equipment;

[0036] A control device is provided, wherein both the heat pump system and the refrigerant circulation system are connected to the control device. The control device includes: a memory, a processor, and a control program for an environmental conditioning device stored in the memory and executable on the processor. When the control program for the environmental conditioning device is executed by the processor, it implements the steps of the control method for the environmental conditioning device as described in any of the preceding claims.

[0037] Optionally, the heat exchange section of the refrigerant circulation system is connected to the heat pump system for heat exchange. The refrigerant circulation loop also includes a buffer water tank. Both ends of the heat exchange section, the inlet of the water distributor in the water distributor, and the outlet of the water collector in the water distributor are all connected to the buffer water tank.

[0038] In addition, to achieve the above objectives, this application also proposes a storage medium storing a control program for an environmental control device, wherein the control program for the environmental control device, when executed by a processor, implements the steps of the control method for the environmental control device as described in any of the preceding claims.

[0039] This invention proposes a control method for an environmental conditioning device. Based on an environmental conditioning device equipped with a heat pump system and a refrigerant circulation system, the refrigerant circulation system includes a manifold, a circulating pump, and terminal heat exchange equipment. This method regulates the operation of the circulating pump using the operating characteristic parameters of the manifold. These parameters accurately reflect the actual load of the indoor space regulated by the environmental conditioning device. Therefore, using the manifold's operating characteristic parameters to regulate the circulation pump's operation helps ensure that the refrigerant's heat exchange cycle precisely matches the actual indoor load, avoiding excessively high or low refrigerant output energy. This effectively improves the comfort of the indoor space regulated by the environmental conditioning device and enhances the energy efficiency of the circulating pump. Attached Figure Description

[0040] Figure 1 This is a schematic diagram of the system structure of an embodiment of the environmental control device of the present invention;

[0041] Figure 2 This is a schematic diagram of the system structure of another embodiment of the environmental control device of the present invention;

[0042] Figure 3 A schematic diagram of the hardware structure involved in the operation of an embodiment of the environmental control device of the present invention;

[0043] Figure 4 This is a flowchart illustrating an embodiment of the control method for the environmental conditioning equipment of the present invention;

[0044] Figure 5 This is a schematic flowchart of another embodiment of the control method for the environmental conditioning equipment of the present invention;

[0045] Figure 6 for Figure 5 A detailed flowchart of step S21;

[0046] Figure 7 This is a flowchart illustrating another embodiment of the control method for the environmental conditioning equipment of the present invention.

[0047] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0048] It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

[0049] This invention provides an environmental control device specifically for regulating the temperature of an indoor environment.

[0050] In this embodiment of the invention, reference is made to Figures 1 to 3The environmental control equipment includes a heat pump system 2, a refrigerant circulation system 3 connected to the heat pump system 2 for heat exchange, and a control device 1. Both the heat pump system 2 and the refrigerant circulation system 3 are connected to the control device 1. The refrigerant circulation system is used to regulate the environmental parameters of the indoor space (such as ambient temperature and / or ambient humidity) through the energy output by the heat pump system. The heat pump system 2 provides energy (such as cooling or heating) for the heat exchange between the refrigerant circulation system 3 and the indoor space.

[0051] In this embodiment, the refrigerant circulation system 3 is a water system, and the heat pump system 2 is used to regulate the supply water temperature of the refrigerant circulation system 3. The refrigerant circulation system 3 is used to regulate the indoor temperature. In this embodiment, the supply water temperature of the refrigerant circulation system 3 can be understood as the outlet water temperature of the heat pump system 2. In other embodiments, the refrigerant circulation system 3 may also be a system that uses other refrigerants to transfer energy, such as an ethanol solution.

[0052] In this embodiment, the heat pump system 2 is an air source heat pump system 2. In other embodiments, the heat pump system 2 may also be a water source heat pump system, a ground source heat pump system, or a dual-source heat pump system, etc.

[0053] In this embodiment, the heat pump system 2 includes a refrigerant circulation loop and a heat exchange module. The refrigerant circulation loop includes a compressor, a first heat exchanger, a throttling device, and a second heat exchanger. The second heat exchanger is connected to the heat exchange module for heat exchange. The heat pump system 2 can operate in two modes: a cooling mode and a heating mode. When the heat pump system 2 operates in cooling mode, the second heat exchanger is in an evaporating state, absorbing heat. When the heat pump system 2 operates in heating mode, the second heat exchanger is in a condensing state, releasing heat.

[0054] The refrigerant circulation system 3 includes a refrigerant circulation loop and terminal heat exchange devices 33 located within the refrigerant circulation loop. The terminal heat exchange devices 33 are located in the indoor space. The terminal heat exchange devices 33 may include fan coil units, underfloor heating coils, radiant panels, fan coil units, or radiator fins, etc. The cooling or heating capacity of the refrigerant (e.g., water, ethylene glycol, etc.) in the refrigerant circulation loop can be released into the indoor space where the terminal heat exchange devices 33 are located. There may be one or more terminal heat exchange devices 33, and more than one terminal heat exchange device 33 may be distributed in different indoor spaces. The heat exchange types of the terminal heat exchange devices 33 in different indoor spaces may be the same or different. Therefore, the cooling or heating capacity carried by the refrigerant (e.g., water, ethylene glycol, etc.) in the refrigerant circulation loop can be used to regulate the ambient temperature of more than one indoor space.

[0055] Specifically, the refrigerant circulation system includes a circulation pump 31 located in the refrigerant circulation loop. The circulation pump 31 drives the refrigerant to circulate and regulates the temperature of the indoor space using the energy output from the heat pump system. In this embodiment, the circulation pump 31 is a water pump. In other embodiments, the circulation pump 31 may also be other fluid pumps.

[0056] During the operation of heat pump system 2, the refrigerant in the heat exchange module of heat pump system 2 absorbs the cold or heat released by the second heat exchanger to form a refrigerant carrying cold or heat. The refrigerant carrying cold or heat flowing out of the heat exchange module can enter the refrigerant circulation loop and flow to the terminal heat exchange device 33 to release the cold or heat into the air of the indoor space to regulate the ambient temperature of the indoor space. After releasing cold or heat, the refrigerant can re-enter the heat exchange module to exchange heat with the second heat exchanger. After heat exchange, the refrigerant can re-enter the refrigerant circulation loop to exchange heat again. This cycle continues, thereby realizing the regulation of the indoor space temperature by the environmental control device.

[0057] When the heat pump system 2 is running in cooling mode, the second heat exchanger is in an evaporation state. The refrigerant in the heat exchange module absorbs the cooling output of the second heat exchanger and its temperature drops, forming a refrigerant carrying the cooling capacity. The refrigerant carrying the cooling capacity enters the refrigerant circulation loop and flows to the terminal heat exchange device 33, releasing the cooling capacity into the indoor space, and the ambient temperature of the indoor space decreases.

[0058] When the heat pump system 2 is in heating mode, the second heat exchanger is in a condensing state. The refrigerant in the heat exchange module absorbs the heat output from the second heat exchanger and its temperature rises to form a heat-carrying refrigerant. The heat-carrying refrigerant enters the refrigerant circulation loop and flows to the terminal heat exchange device 33, releasing heat into the indoor space and raising the ambient temperature of the indoor space.

[0059] Furthermore, in one embodiment, referring to Figure 1 The refrigerant circulation system includes a manifold 32, a circulation pump 31, and a terminal heat exchange device 33. The manifold 32, the circulation pump 31, and the terminal heat exchange device 33 are all located in the refrigerant circulation loop. The circulation pump 31 is used to drive the circulation of the refrigerant in the refrigerant circulation system, and the manifold 32 is used for the collection and distribution of the supply and return liquid of the terminal heat exchange device 33.

[0060] In this embodiment, the number of terminal heat exchange devices 33 is more than one. In other embodiments, the number of terminal heat exchange devices 33 may be one.

[0061] In one implementation, all terminal heat exchange devices 33 are fixedly connected to the manifold 32; in another implementation, the terminal heat exchange devices 33 are detachably connected to the manifold 32.

[0062] Specifically, the refrigerant circulation loop includes a main flow path, the water distribution manifold 32 includes a water distributor 321 and a water collector 322, the main flow path is connected to the heat pump system for heat exchange, the main flow path is equipped with a circulation pump 31, the liquid outlet of the main flow path and the liquid inlet of each of the terminal heat exchange devices 33 are connected to the water distributor 321, and the liquid inlet of the main flow path and the liquid outlet of each of the terminal heat exchange devices 33 are connected to the water collector 322.

[0063] The water distributor 321 can distribute the refrigerant flowing out of the heat exchange section to each terminal heat exchange device 33, and the water collector 322 can collect the refrigerant that needs to enter the heat exchange section from the terminal heat exchange device 33 and send it into the heat exchange section for reheating.

[0064] In one implementation of this embodiment, the water distributor 321 includes a water distribution valve, which is a multi-way valve. The liquid outlet of the main flow path and the liquid inlet of each of the terminal heat exchange devices 33 are respectively connected to different valve ports of the multi-way valve.

[0065] In another implementation of this embodiment, the water distributor 321 includes more than one water distribution valve, and different water distribution valves can be used for the collection and distribution of liquid supply and return from different terminal heat exchange devices 33. Specifically, the water distribution valve is a single-way valve, the inlet of each single-way valve is connected to the outlet of the main flow channel, and the outlet of each single-way valve is connected to different terminal heat exchange devices 33.

[0066] Furthermore, in one embodiment, referring to Figure 2 The heat exchange section of the refrigerant circulation loop is connected to the heat pump system for heat exchange. The refrigerant circulation loop also includes a buffer water tank 34. Both ends of the heat exchange section, the inlet of the water distributor 321 in the water distributor 32, and the outlet of the water collector 322 in the water distributor 32 are all connected to the buffer water tank 34.

[0067] Specifically, the main flow path includes a first branch, a second branch, and a third branch. The first branch is connected to the heat pump system for heat exchange, and both ends of the first branch are connected to the buffer water tank 34. The two ends of the second branch are connected to the water distributor 321 and the buffer water tank 34, respectively. The two ends of the third branch are connected to the water collector 322 and the buffer water tank 34, respectively. The circulation pump 31 is located in the first branch, or in the second branch, or in the third branch.

[0068] Furthermore, in this embodiment, the environmental control device also includes a temperature detection module 4. The control device 1 is connected to the temperature detection module 4, and the control device can acquire the data detected by the temperature detection module 4. The temperature detection module 4 is located in the indoor environment where the terminal heat exchange device 33 is located. Different indoor environments can be equipped with corresponding temperature detection modules 4.

[0069] In this embodiment of the invention, reference is made to Figure 3 The control device 1 of the environmental control equipment includes: a processor 1001 (e.g., CPU), a memory 1002, a timer 1003, etc. The components in the control device 1 are connected via a communication bus. The memory 1002 can be a high-speed RAM or a stable, non-volatile memory, such as a disk drive. Optionally, the memory 1002 can also be a storage device independent of the aforementioned processor 1001.

[0070] Those skilled in the art will understand that Figure 3 The device structure shown does not constitute a limitation on the device and may include more or fewer components than shown, or combine certain components, or have different component arrangements.

[0071] like Figure 3 As shown, the memory 1002, which serves as a storage medium, may include a control program for an environmental control device. Figure 3 In the device shown, the processor 1001 can be used to call the control program of the environmental control device stored in the memory 1002 and execute the relevant steps of the control method of the environmental control device in the following embodiments.

[0072] This invention also provides a control method for an environmental control device, which is applied to the aforementioned environmental control device.

[0073] Reference Figure 4 This application proposes an embodiment of a control method for an environmental conditioning device. In this embodiment, the control method for the environmental conditioning device includes:

[0074] Step S10: Obtain the operating characteristic parameters of the water distribution manifold;

[0075] The specific operating characteristic parameters here refer to the hardware characteristic parameters and / or operating status related to the supply and return of the refrigerant in the terminal heat exchange equipment of the manifold.

[0076] The operating characteristic parameters may include the first operating characteristic parameters of the distributor and / or the second operating characteristic parameters of the collector. Specifically, the first operating characteristic parameters include the number of distributor valves, the open / closed state of the distributor valves, and / or the opening degree of the distributor valves. The second operating characteristic parameters include the number of collector valves, the open / closed state of the collector valves, and / or the opening degree of the collector valves.

[0077] Operating characteristic parameters can be obtained by reading pre-stored device parameters, by sensor detection, or by analyzing the electrical parameters of each electronic component of the water distributor.

[0078] Step S20: Determine the target operating parameters of the circulating pump based on the operating characteristic parameters;

[0079] In this embodiment, the target operating parameter is the target rotational speed. In other embodiments, the target operating parameter may also include operating current, operating power, duty cycle, etc. Specifically, the target operating parameter can be the optimal parameter value that effectively balances the heat exchange effect and energy-saving effect of the environmental control equipment under the current operating conditions.

[0080] Different operating characteristic parameters correspond to different target operating parameters. Specifically, a correspondence between operating characteristic parameters and target operating parameters can be established in advance. This correspondence can include calculation formulas, mapping relationships, algorithm models, etc. Based on this correspondence, the target operating parameters corresponding to the current operating characteristic parameters can be determined. For example, the target operating parameters of the circulating pump can be obtained by querying a preset mapping table using the operating characteristic parameters, or the target operating parameters of the circulating pump can be calculated by substituting the operating characteristic parameters into a preset formula.

[0081] Furthermore, in this embodiment, there can be more than one pre-set correspondence between operating characteristic parameters and target operating parameters. The actual operating condition parameters of the environmental control equipment can be selected from the more than one correspondence as the target correspondence, and the target operating parameters corresponding to the operating characteristic parameters can be determined based on the target correspondence. For example, the target correspondence can be determined from more than one correspondence based on at least one of the following parameters: the operating frequency of the compressor of the heat pump system, the ambient temperature of the environment where the heat pump system is located, the temperature change value of the second heat exchanger, and the type of terminal heat exchange equipment (radiative heat exchange or convective heat exchange, etc.).

[0082] Step S30: Control the operation of the circulating pump according to the target operating parameters.

[0083] When the target operating parameters include the target speed, control the circulating pump to operate at the target speed.

[0084] When the target operating parameters include the target operating power, the circulating pump is controlled to operate at the target operating power.

[0085] When the target operating parameters include the target operating current, control the circulating pump to operate at the target operating current.

[0086] When the target operating parameters include the target opening degree, control the circulating pump to operate at the target opening degree.

[0087] This invention proposes a control method for an environmental conditioning device. The device is equipped with a heat pump system and a refrigerant circulation system. The refrigerant circulation system includes a manifold, a circulating pump, and terminal heat exchange equipment. This method regulates the operation of the circulating pump using the operating characteristic parameters of the manifold. These parameters accurately reflect the actual load of the indoor space regulated by the environmental conditioning device. Therefore, using these parameters to regulate the circulation pump ensures precise matching between the refrigerant's heat exchange cycle and the actual indoor load, preventing excessively high or low refrigerant output energy. This effectively improves the comfort of the indoor space regulated by the environmental conditioning device and enhances the energy efficiency of the circulating pump.

[0088] Furthermore, based on the above embodiments, another embodiment of the control method for the environmental conditioning equipment of this application is proposed. In this embodiment, the manifold includes a water distribution valve for distributing the refrigerant to the terminal heat exchange equipment, and the operating characteristic parameters include the total number of the water distribution valves and / or the open / closed state of the water distribution valves, referring to... Figure 5 Step S20 includes:

[0089] Step S21: Determine the target operating parameters based on the total number and / or the opening / closing state.

[0090] Different totals can correspond to different target operating parameters. In this embodiment, the target operating parameters include the target rotational speed. The numerical range of the total can be determined. When the numerical range is the first range, the first rotational speed is determined as the target rotational speed; when the numerical range is the second range, the second rotational speed is determined as the target rotational speed.

[0091] The target operating parameters differ depending on the open / closed state of the water distribution valve. This open / closed state can include whether it is open, the duration of its open position, and / or the cycle of alternating switching. Specifically, the load demand characteristic parameters of the indoor space can be determined based on the open / closed state, and the target operating parameters can be determined based on these load demand characteristic parameters. If there is more than one water distribution valve, the target operating parameters can be determined based on the open / closed state of each of the multiple water distribution valves.

[0092] Different totals and different open / closed states can correspond to different target operating parameters. Specifically, a correspondence between the total number, open / closed states, and target operating parameters can be established in advance, and the target operating parameters can be determined based on this correspondence. Alternatively, the target correspondence between the open / closed states and target operating parameters can be obtained based on the total number; different totals correspond to different target closures. The target operating parameters corresponding to the current open / closed state are then determined based on the target correspondence.

[0093] In this embodiment, the total number of water distribution valves can accurately reflect the refrigerant distribution characteristics of the terminal heat exchange equipment, and the open / closed status can accurately reflect the refrigerant demand of the terminal heat exchange equipment. The operation of the circulation pump is regulated based on the total number and / or the open / closed status, thereby further ensuring that the heat exchange circulation of the refrigerant can be accurately matched with the actual indoor load, effectively improving the indoor space comfort regulated by the environmental control equipment.

[0094] Furthermore, in this embodiment, referring to Figure 6 Step S21 includes:

[0095] Step S211: When the total number is greater than the preset value, the target operating parameters are determined according to the opening and closing status of all the water distribution valves.

[0096] In this embodiment, the preset value is one. In other embodiments, it can be set to other values ​​according to actual needs, such as two or three.

[0097] Specifically, the target operating parameters differ depending on the combination of different opening and closing states of the various water distribution valves.

[0098] In this embodiment, the number of water distribution valves in the open state is determined based on all the described open / closed states; the target operating parameter is then determined based on the number of valves in the open state. Different numbers of valves result in different target operating parameters. Specifically, the target operating parameter can be obtained by substituting the number of valves into a preset formula, or by looking up the number of valves in a table. Specifically, the number of valves in the open state is positively correlated with the refrigerant flow rate corresponding to the target operating parameter. In this embodiment, the target operating parameter is the target rotational speed; therefore, a larger number of valves in the open state corresponds to a larger target rotational speed, and a smaller number of valves in the open state corresponds to a smaller target rotational speed.

[0099] In this embodiment, when the total number is greater than the preset value, it indicates that different terminal heat exchange devices are allocated refrigerant by different water distribution valves. The opening and closing status of all water distribution valves can accurately reflect the actual load demand of the terminal heat exchange devices. By determining the target operating parameters of the circulating pump through the opening and closing status of all water distribution valves, it is beneficial to further ensure that the heat exchange cycle of the refrigerant can be accurately matched with the actual indoor load, and effectively improve the comfort of the indoor space regulated by the environmental control equipment.

[0100] Furthermore, in this embodiment, the target operating parameters include the target rotational speed, and the ratio of the statistical quantity to the total number is determined; the target rotational speed is determined based on the ratio, and the target rotational speed is positively correlated with the ratio.

[0101] Different ratios correspond to different target speeds; a larger ratio results in a higher target speed, and vice versa. Specifically, a pre-established correspondence between ratios and target speeds can be created, such as through calculation formulas, mapping relationships, or algorithm models. When the correspondence is a pre-defined formula, the target speed can be calculated by substituting the ratio into the formula. In the quantitative relationship represented by the pre-defined formula, the ratio and target speed can exhibit a linear or non-linear relationship. Alternatively, when the correspondence is a mapping table, the target speed is obtained by querying the mapping table using the ratio and using the matched speed from the table.

[0102] When the ratio is 0, the target rotational speed can be 0.

[0103] Furthermore, in this embodiment, a target numerical range in which the ratio lies is determined; the target rotational speed is determined based on the target numerical range. Different target numerical ranges correspond to different target rotational speeds. Specifically, at least two numerical ranges can be pre-divided; these ranges can be continuous or discontinuous. The number of the at least two numerical ranges can be 2, 3, 4, 5, or more, and can be set according to actual conditions. Different numerical ranges correspond to different rotational speed values. Based on this, the numerical range in which the ratio lies can be determined from the at least two numerical ranges, and the rotational speed associated with the determined numerical range is taken as the target rotational speed.

[0104] In this embodiment, when the ratio is in a first numerical range, the first rotational speed is determined as the target rotational speed; when the ratio is in a second numerical range, the second rotational speed is determined as the target rotational speed; when the ratio is in a third numerical range, the third rotational speed is determined as the target rotational speed; wherein, the value in the first numerical range is greater than the value in the second numerical range, the value in the second numerical range is greater than the value in the third numerical range, the first rotational speed is greater than the second rotational speed, and the second rotational speed is greater than the third rotational speed.

[0105] The first, second, and third rotational speeds here can be preset fixed values, or they can be determined based on the compressor's operating frequency, or based on the changes in the coil temperature of the second heat exchanger and the coil temperature of the first heat exchanger, or they can be determined in combination with the compressor's operating frequency and the indoor ambient temperature regulated by the environmental control equipment.

[0106] In this embodiment, the ratio can accurately reflect the actual load demand of all terminal heat exchange devices in the indoor space. The target speed of the circulating pump is determined based on the ratio, thereby ensuring that the flow rate and velocity of the refrigerant exchanged with the heat pump system can be accurately matched with the actual indoor load, further improving indoor comfort.

[0107] In other embodiments, a first number of water distribution valves in the open state and a second number of water distribution valves in the closed state can be determined based on all open and closed states, and the target operating parameters can be determined based on the first number and the second number. For example, the target operating parameters can be determined based on the ratio or difference between the first number and the second number.

[0108] Furthermore, based on any of the above embodiments, another embodiment of the control method for the environmental conditioning equipment of this application is proposed. In this embodiment, reference is made to... Figure 7 After step S10, the method further includes:

[0109] Step S40: When the total number is less than or equal to a preset value, the target operating parameters are determined based on the indoor ambient temperature corresponding to the terminal heat exchange device.

[0110] The indoor ambient temperature here can be determined based on the environmental monitoring values ​​of the indoor environments where all terminal heat exchange devices are located. Specifically, the average, maximum, or minimum value of all environmental monitoring values ​​can be used as the indoor ambient temperature. In heating mode, the minimum value among all environmental monitoring values ​​can be used to determine the target operating parameters, while in cooling mode, the maximum value among all environmental monitoring values ​​can be used to determine the target operating parameters.

[0111] The indoor ambient temperature can also be adjusted by the terminal heat exchange equipment to regulate the ambient temperature of a specified environment in all indoor environments.

[0112] Different indoor ambient temperatures correspond to different target operating parameters. Specifically, a correspondence between indoor ambient temperature and target operating parameters can be established in advance. This correspondence can be a calculation formula or a mapping relationship, etc. Based on this correspondence, the target operating parameters corresponding to the current indoor ambient temperature can be determined.

[0113] In this embodiment, the indoor ambient temperature can accurately reflect the actual load of the terminal heat exchange equipment. Therefore, when the number of water distribution valves is small, it is easy to have errors in the characterization of the actual indoor load. Determining the target operating parameters by using the indoor ambient temperature is beneficial to further ensure that the flow rate and velocity of the refrigerant exchanged with the heat pump system can be accurately matched with the actual indoor load, thereby further improving indoor comfort.

[0114] Furthermore, in this embodiment, the target operating parameter includes a target rotational speed, and the step of determining the target operating parameter based on the indoor ambient temperature corresponding to the terminal heat exchange device includes: determining the temperature difference between the ambient temperature and the corresponding set temperature; and determining the target rotational speed based on the temperature difference.

[0115] In this embodiment, the set temperature can be the average, minimum, or maximum value of the set temperatures of all devices in the indoor environment where the terminal heat exchanger is located. In heating mode, the set temperature can be the maximum value of the set temperatures of all devices, and in cooling mode, the set temperature can be the minimum value of the set temperatures of all devices.

[0116] Different temperature differences correspond to different target rotational speeds. Specifically, the relationship between the target rotational speed and the temperature difference varies depending on the heat exchange mode. This relationship can be obtained based on the heat exchange mode of the environmental control equipment. Based on this relationship, the target rotational speed corresponding to the temperature difference is determined. Specifically, when the heat exchange mode is cooling mode, the target rotational speed and the temperature difference are positively correlated; when the heat exchange mode is heating mode, the target rotational speed and the temperature difference are negatively correlated.

[0117] In this embodiment, a target temperature difference range containing the temperature difference value is determined; the target rotational speed is then determined based on the target temperature difference range. Specifically, at least two temperature difference ranges can be pre-divided. These ranges can be continuous or discontinuous. The number of these ranges can be 2, 3, 4, 5, or more, depending on the actual situation. Different rotational speed values ​​are set for different temperature difference ranges. Based on this, the temperature difference range containing the temperature difference value can be determined from the at least two temperature difference ranges, and the rotational speed associated with the determined temperature difference range is used as the target rotational speed.

[0118] For example, when an environmental control device is turned on and in cooling mode, it acquires the ambient temperature T1_Rn and the set temperature T1S_Rn, and calculates the difference ΔT1 = T1_Rn - T1S_Rn. Based on the difference ΔT1 between the ambient temperature and the set temperature, the target speed of the circulating pump is controlled: if ΔT1 is in the first preset range (ΔT1 > ΔT1CS1), the target speed of the circulating pump is the first preset value PumpC_Spd1; if ΔT1 is in the second preset range (ΔT1CS2 < ΔT1 ≤ ΔT1CS1), the target speed of the circulating pump is the second preset value PumpC_Spd2; if ΔT1 is in the third preset range (ΔT1 ≤ ΔT1CS2), the target speed of the circulating pump is 0.

[0119] For example, when an environmental control device is turned on and in heating mode, it acquires the ambient temperature T1_Rn and the set temperature T1S_Rn, and calculates the difference ΔT1 = T1_Rn - T1S_Rn. Based on the difference ΔT1 between the ambient temperature and the set temperature, the target speed of the circulating pump is controlled: if ΔT1 is in the first preset range (ΔT1 < ΔT1HS1), the target speed of the circulating pump is the first preset value PumpH_Spd1; if ΔT1 is in the second preset range (ΔT1HS1 ≤ ΔT1 < ΔT1HS2), the target speed of the circulating pump is the second preset value PumpH_Spd2; if ΔT1 is in the third preset range (ΔT1 ≥ ΔT1HS2), the target speed of the circulating pump is 0.

[0120] In this embodiment, the temperature difference value can accurately reflect the indoor environment's demand for heat exchange for environmental regulation, and can more accurately reflect the actual indoor load. Therefore, combining the temperature difference value to determine the target speed of the circulating pump is conducive to improving the accuracy of circulating pump regulation, thereby further improving indoor comfort.

[0121] Furthermore, this invention also proposes a storage medium storing a control program for an environmental control device. When the control program for the environmental control device is executed by a processor, it implements the relevant steps of any of the above embodiments of the control method for the environmental control device.

[0122] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or system that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or system. Unless otherwise specified, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or system that includes that element.

[0123] The sequence numbers of the above embodiments of the present invention are for descriptive purposes only and do not represent the superiority or inferiority of the embodiments.

[0124] Through the above description of the embodiments, those skilled in the art can clearly understand that the methods of the above embodiments can be implemented by means of software plus necessary general-purpose hardware platforms. Of course, they can also be implemented by hardware, but in many cases the former is a better implementation method. Based on this understanding, the technical solution of the present invention, or the part that contributes to the prior art, can be embodied in the form of a software product. This computer software product is stored in a storage medium (such as ROM / RAM, magnetic disk, optical disk) as described above, and includes several instructions to cause a terminal device (which may be a mobile phone, computer, server, environmental control device, or network device, etc.) to execute the methods described in the various embodiments of the present invention.

[0125] The above are merely preferred embodiments of the present invention and do not limit the scope of the patent. Any equivalent structural or procedural transformations made based on the description and drawings of the present invention, or direct or indirect applications in other related technical fields, are similarly included within the scope of patent protection of the present invention.

Claims

1. A control method for an environmental control device, characterized in that, The environmental control equipment includes a heat pump system and a refrigerant circulation system. The refrigerant circulation system includes a manifold, a circulating pump, and terminal heat exchange equipment. The circulating pump drives the circulation of the refrigerant in the refrigerant circulation system. The manifold is used for collecting and distributing the supply and return liquid of the terminal heat exchange equipment. The manifold includes a distribution valve for distributing the refrigerant to the terminal heat exchange equipment. The control method of the environmental control equipment includes the following steps: Obtain the operating characteristic parameters of the water distribution manifold, including the total number of water distribution valves and / or the opening and closing status of the water distribution valves; When the total number is greater than the preset value, the target operating parameters are determined based on the opening and closing status of all the water distribution valves. And / or, when the total number is less than or equal to the preset value, the target operating parameters are determined based on the indoor ambient temperature corresponding to the terminal heat exchange device; The operation of the circulating pump is controlled according to the target operating parameters.

2. The control method for the environmental control equipment as described in claim 1, characterized in that, The step of determining the target operating parameters based on the open / closed state of all the water distribution valves includes: The statistical number of the water distribution valves that are in the open state is determined based on all the described open and closed states; The target operating parameters are determined based on the statistical data.

3. The control method for the environmental control equipment as described in claim 2, characterized in that, The target operating parameters include the target rotational speed, and the step of determining the target operating parameters based on the statistical data includes: Determine the ratio of the statistical quantity to the total number; The target rotational speed is determined based on the ratio, and the target rotational speed is positively correlated with the ratio.

4. The control method for the environmental control equipment as described in claim 3, characterized in that, The step of determining the target rotational speed based on the ratio includes: Determine the target numerical range in which the ratio falls; The target rotational speed is determined based on the target numerical range.

5. The control method for the environmental control equipment as described in claim 1, characterized in that, The target operating parameters include the target rotational speed, and the step of determining the target operating parameters based on the indoor ambient temperature corresponding to the terminal heat exchange equipment includes: Determine the temperature difference between the ambient temperature and the corresponding set temperature; The target rotational speed is determined based on the temperature difference value.

6. The control method for the environmental control equipment as described in claim 5, characterized in that, The step of determining the target rotational speed based on the temperature difference value includes: Determine the target temperature range within which the temperature difference value lies; The target rotational speed is determined based on the target temperature difference range.

7. The control method for the environmental control equipment as described in claim 6, characterized in that, The step of determining the target rotational speed based on the temperature difference value includes: The target correspondence is obtained based on the heat exchange mode of the environmental conditioning equipment; Based on the target correspondence, the target rotational speed corresponding to the temperature difference value is determined.

8. An environmental control device, characterized in that, The environmental control equipment includes: Heat pump system; A refrigerant circulation system, comprising a manifold, a circulation pump, and terminal heat exchange equipment located in the refrigerant circulation loop, wherein the circulation pump is used to drive the circulation flow of the refrigerant in the refrigerant circulation system, and the manifold is used for the collection and distribution of the supply and return liquids of the terminal heat exchange equipment. A control device is provided, wherein both the heat pump system and the refrigerant circulation system are connected to the control device. The control device includes: a memory, a processor, and a control program for an environmental conditioning device stored in the memory and executable on the processor. When the control program for the environmental conditioning device is executed by the processor, it implements the steps of the control method for the environmental conditioning device as described in any one of claims 1 to 7.

9. The control method for the environmental control equipment as described in claim 8, characterized in that, The heat exchange section of the refrigerant circulation system is connected to the heat pump system for heat exchange. The refrigerant circulation loop also includes a buffer water tank. Both ends of the heat exchange section, the inlet of the water distributor in the water distributor, and the outlet of the water collector in the water distributor are all connected to the buffer water tank.

10. A storage medium, characterized in that, The storage medium stores a control program for an environmental control device, which, when executed by a processor, implements the steps of the control method for an environmental control device as described in any one of claims 1 to 7.

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