Temperature and humidity control method and system, computer equipment and storage medium

Abstract

The invention provides a temperature and humidity control method and system, computer equipment and a storage medium. Relates to the automatic control field. The method comprises the steps that environment collection parameters of the environment where the wet film fresh air handling unit is located are collected; the temperature and humidity target adjusting range of the wet film fresh air handling unit is obtained; according to the environment collection parameters and the temperature and humidity target adjusting range, the target air supply state of the wet film fresh air handling unit is determined; and according to the target air supply state, the working state of the wet film fresh air unit is adjusted. According to the method, the appropriate operation mode can be determined for the wet film fresh air handling unit only by inputting the needed air supply temperature and humidity range and combining the temperature and humidity conditions of the environment where the data center is located, the cooling capacity of outdoor air can be utilized to the maximum extent, the use time of natural cooling is prolonged, and the effect of saving water and energy is achieved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of automatic control, and in particular to a temperature and humidity control method and system, a computer device and a storage medium. BACKGROUND

[0002] PUE, Power Usage Effectiveness, is an index for evaluating the energy efficiency of a data center. With the development of technology and the improvement of environmental awareness, more and more stringent PUE index requirements have been put forward for data centers in recent years, and more and more data centers have begun to use natural cooling instead of traditional mechanical refrigeration. With the improvement of the heat resistance of data center chips, memories and other facilities, a scheme is needed to control the temperature and humidity of the data center in combination with the environment in which the data center is located to meet the PUE index requirements. SUMMARY

[0003] The present application provides a temperature and humidity control method, system, computer device and storage medium to solve the technical problem of high PUE index in the prior art.

[0004] In a first aspect, the present application provides a temperature and humidity control method applied to a temperature and humidity controller, the temperature and humidity controller being used to control the operation of a wet membrane fresh air handling unit, the wet membrane fresh air handling unit being used to adjust the temperature and humidity of an indoor environment, and the method comprising:

[0005] collecting environment collection parameters of an environment in which the wet membrane fresh air handling unit is located, the environment collection parameters being used to represent temperature and humidity information of the environment directly obtained by a sensor;

[0006] obtaining a target temperature and humidity adjustment range of the wet membrane fresh air handling unit;

[0007] determining a target air supply state of the wet membrane fresh air handling unit according to the environment collection parameters and the target temperature and humidity adjustment range;

[0008] adjusting the working state of the wet membrane fresh air handling unit according to the target air supply state.

[0009] The method provided in the above embodiment collects environment collection parameters of an environment in which the wet membrane fresh air handling unit is located, obtains a target temperature and humidity adjustment range of the wet membrane fresh air handling unit, determines a target air supply state of the wet membrane fresh air handling unit according to the environment collection parameters and the target temperature and humidity adjustment range, and adjusts the working state of the wet membrane fresh air handling unit according to the target air supply state. In the method provided in the present application, only the required air supply temperature and humidity range needs to be input, and in combination with the temperature and humidity of the environment in which the data center is located, the appropriate operation mode of the wet membrane fresh air handling unit can be determined, the cold energy of outdoor air can be used to the maximum extent, the use time of natural cooling can be prolonged, and the effect of water and energy saving can be achieved.

[0010] In one of the embodiments, the target air supply state of the wet membrane fresh air handling unit is determined according to the environment collection parameters and the target temperature and humidity adjustment range, comprising:

[0011] The absolute environment parameter of the environment where the wet membrane fresh air handling unit is located is determined according to the environment collection parameters and the atmospheric pressure;

[0012] The psychrometric chart corresponding to the atmospheric pressure is determined according to the absolute environment parameter and the atmospheric pressure;

[0013] The target air supply state of the wet membrane fresh air handling unit in the psychrometric chart is determined according to the target temperature and humidity adjustment range and the psychrometric chart.

[0014] In the method provided by the above embodiments, the psychrometric chart corresponding to the outdoor environment is determined through the environment collection parameters and the atmospheric pressure, which can comprehensively analyze the outdoor air and obtain more accurate analysis results, so as to adjust the temperature and humidity of the indoor air through the outdoor air.

[0015] In one of the embodiments, the environment collection parameters include the outdoor dry bulb temperature and the outdoor air relative humidity; correspondingly, the absolute environment parameter includes the outdoor wet bulb temperature, the outdoor dew point temperature, the outdoor air enthalpy value and the outdoor air absolute humidity.

[0016] In the method provided by the above embodiments, the psychrometric chart can be quickly and accurately determined through the outdoor wet bulb temperature, the outdoor dew point temperature, the outdoor air enthalpy value and the outdoor air absolute humidity.

[0017] In one of the embodiments, the target temperature and humidity adjustment range includes at least one of the following four conditions: the maximum allowable temperature, the minimum allowable temperature, the maximum allowable relative humidity and the minimum allowable relative humidity.

[0018] In the method provided by the above embodiments, the target temperature and humidity adjustment range gives the temperature range and the humidity range, so that the air supply temperature and humidity of the wet membrane fresh air handling unit is not a certain fixed point, but a range, which can maximize the use of the cold energy of the outdoor air and prolong the use time of natural cooling.

[0019] In one of the embodiments, the target air supply state of the wet membrane fresh air handling unit in the psychrometric chart is determined according to the absolute environment parameter and the psychrometric chart, comprising:

[0020] The psychrometric chart is divided into a plurality of air state regions according to the target temperature and humidity adjustment range;

[0021] The absolute environment parameter is compared with the target temperature and humidity adjustment range to determine the target air state region corresponding to the absolute environment parameter in the plurality of air state regions, and the air supply state corresponding to the target air state region is taken as the target air supply state of the wet membrane fresh air handling unit.

[0022] In the method provided in the above embodiments, the enthalpy-humidity chart is divided into several air state regions by the target temperature and humidity adjustment range. The number of air supply states of the wet film fresh air unit is reasonably limited by the target temperature and humidity adjustment range. When adjusting the temperature and humidity, it is only necessary to determine the air state region to which the current outdoor air belongs, and the corresponding air supply state can be called to adjust the wet film fresh air unit.

[0023] In one embodiment, adjusting the operating state of the wet-film fresh air handling unit according to the target air supply state includes:

[0024] Obtain the target operating mode of the wet-film fresh air handling unit;

[0025] Adjust the operating status of the wet film fresh air handling unit according to the target air supply status and target operating mode.

[0026] In the method provided in the above embodiments, based on the target working mode, the control strategy can have a water-saving priority mode and a cooling priority mode, which makes it convenient for users to select the water-saving mode first under low load conditions and to use the cooling priority mode first under high load conditions.

[0027] In one embodiment, the wet-film fresh air handling unit includes a fresh air valve, a return air valve, a wet-film assembly, a wet-film inlet valve, and a wet-film bypass valve. The target air supply state includes a wet-film 100% fresh air state, which indicates that the outdoor air is in a high-temperature, low-humidity state. Adjusting the operating state of the wet-film fresh air handling unit according to the target air supply state and the target operating mode includes:

[0028] Determine the air mixing ratio of the wet film front air valve and the wet film side air valve according to the target working mode;

[0029] Control the fresh air valve to open, the return air valve to close, and the wet membrane assembly to open. Control the wet membrane front air valve and the wet membrane side ventilation valve to mix the outdoor fresh air according to the air mixing ratio.

[0030] In the method provided in the above embodiments, the air mixing ratio is determined based on the target working mode, and then each component is controlled to adjust to the corresponding working state, and the temperature and humidity of the indoor air in the data center are adjusted by the wet film fresh air unit.

[0031] Secondly, this application provides a temperature and humidity control device, comprising:

[0032] The data acquisition module is used to collect environmental parameters of the environment in which the wet film fresh air unit is located. The environmental parameters are used to characterize the temperature and humidity information of the environment directly obtained by the sensor.

[0033] The condition acquisition module is used to acquire the target temperature and humidity adjustment range of the wet film fresh air handling unit;

[0034] The status determination module is used to determine the target air supply status of the wet film fresh air unit based on the environmental parameters collected and the target temperature and humidity adjustment range.

[0035] The control module is used to adjust the operating status of the wet film fresh air handling unit according to the target air supply status.

[0036] Thirdly, this application provides a temperature and humidity control system, which includes a temperature and humidity controller and a wet film fresh air unit;

[0037] The wet-film fresh air handling unit includes a fresh air valve, a return air valve, an exhaust fan array, a supply fan array, a return air outlet, a supply air outlet, a wet-film humidification component, a wet-film bypass ventilation valve, a wet-film in-situ air valve, an outdoor temperature and humidity sensor, a fresh and return air mixed temperature and humidity sensor, and a supply air temperature and humidity sensor. The fresh air valve, return air valve, exhaust fan array, supply fan array, return air outlet, and supply air outlet are used to regulate the flow of fresh air, while the wet-film humidification component, wet-film bypass ventilation valve, and wet-film in-situ air valve are used to regulate the humidity of the fresh air.

[0038] The temperature and humidity controller is used to control the operation of the wet film fresh air unit, specifically to perform the steps described in any of the above methods.

[0039] Fourthly, this application also provides a computer device, the computer including: a processor, and a memory communicatively connected to the processor;

[0040] The memory stores instructions that the computer executes;

[0041] The processor implements the above method when executing computer execution instructions stored in memory.

[0042] Fifthly, this application also provides a computer-readable storage medium storing computer-executable instructions, which, when executed by a processor, are used to implement the above-described method.

[0043] Sixthly, this application also provides a computer program product, including computer execution instructions, which, when executed by a processor, implement the above-described method.

[0044] This application provides a temperature and humidity control method, system, computer equipment, and storage medium. The method includes: collecting environmental parameters of the environment where the wet-film air handling unit is located, wherein the environmental parameters characterize the temperature and humidity information of the environment directly acquired by sensors; obtaining the target temperature and humidity adjustment range of the wet-film air handling unit; determining the target air supply state of the wet-film air handling unit based on the environmental parameters and the target temperature and humidity adjustment range; and adjusting the operating state of the wet-film air handling unit according to the target air supply state. The method provided in this application only requires inputting the required air supply temperature and humidity range, combined with the temperature and humidity conditions of the data center environment, to determine a suitable operating mode for the wet-film air handling unit. This maximizes the utilization of outdoor air cooling capacity, extends the natural cooling time, and achieves water and energy savings. Attached Figure Description

[0045] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0046] Figure 1 A schematic diagram of the structure of a wet film fresh air assembly provided in one embodiment. Figure 1 ;

[0047] Figure 2 The flowchart of a temperature and humidity control method provided in one embodiment Figure 1 ;

[0048] Figure 3 The flowchart of a temperature and humidity control method provided in one embodiment Figure 2 ;

[0049] Figure 4 The flowchart of a temperature and humidity control method provided in one embodiment Figure 3 ;

[0050] Figure 5 A schematic diagram of the structure of a wet film fresh air assembly provided in one embodiment. Figure 2 ;

[0051] Figure 6 This is a schematic diagram illustrating the division of air state regions in one embodiment;

[0052] Figure 7 This is a schematic diagram of the temperature and humidity control device provided in one embodiment;

[0053] Figure 8 This is an internal structural diagram of a computer device provided in one embodiment.

[0054] The accompanying drawings illustrate specific embodiments of this application, which will be described in more detail below. These drawings and descriptions are not intended to limit the scope of the concept in any way, but rather to illustrate the concept of this application to those skilled in the art through reference to particular embodiments. Detailed Implementation

[0055] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this application as detailed in the appended claims.

[0056] In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0057] The temperature and humidity control method provided in this application can be applied to real-time acquisition of the target temperature and humidity adjustment range for real-time control of the indoor environment of a data center. Alternatively, it can first determine the target air supply state based on the target temperature and humidity adjustment range, and then control the operation of the wet film fresh air unit to achieve temperature and humidity regulation. This application does not specifically limit the method in this way. For ease of understanding, this application takes a real-time scenario as an example. The method provided in this application can achieve energy and water conservation during temperature and humidity control.

[0058] The method provided in this application embodiment can be applied to a temperature and humidity controller, which is used to control the operation of a wet-film fresh air handling unit, and the wet-film fresh air handling unit is used to regulate the temperature and humidity of the indoor environment, such as... Figure 1 As shown, the wet-film fresh air handling unit includes a fresh air valve 1, a return air valve 2, an exhaust fan array 3, a return air outlet 4, a supply fan array + supply air outlet 5, a wet-film humidification component 6, a wet-film bypass ventilation valve 7, a wet-film inlet valve 8, an outdoor temperature and humidity sensor 9, a fresh and return air mixed temperature and humidity sensor 10, and a supply air temperature and humidity sensor 11. The fresh air valve 1, return air valve 2, exhaust fan array 3, return air outlet 4, and supply fan array + supply air outlet 5 are used to regulate the flow of fresh air, while the wet-film humidification component 6, the wet-film bypass ventilation valve 7, and the wet-film inlet valve 8 are used to regulate the humidity of the fresh air. Figure 2 As shown, the method includes:

[0059] Step 202: Collect environmental parameters of the environment where the wet membrane fresh air handling unit is located.

[0060] In this embodiment of the application, the environmental acquisition parameters of the environment refer to the environmental parameters of the outdoor environment where the wet film fresh air unit is located, which are directly obtained through sensors.

[0061] In one possible implementation, the temperature and humidity controller can acquire environmental parameters such as temperature, humidity, and atmospheric pressure of the outdoor environment where the wet film fresh air unit is located through sensors.

[0062] Step 204: Obtain the target temperature and humidity adjustment range of the wet film fresh air unit.

[0063] In this embodiment of the application, the target temperature and humidity adjustment range refers to the temperature and humidity requirements of the indoor environment set based on the user's usage needs. This target temperature and humidity adjustment range can be set by the user.

[0064] In possible implementations, the temperature and humidity controller acquires the target temperature or target temperature range, target humidity, and target humidity range required to be achieved indoors.

[0065] Step 206: Determine the target air supply status of the wet film fresh air unit based on the environmental collected parameters and the target temperature and humidity adjustment range.

[0066] In this embodiment of the application, the target air supply state of the wet membrane fresh air handling unit is used to characterize the working state that the wet membrane fresh air handling unit needs to be adjusted for the current environment. Specifically, the target air supply state is used to characterize whether the wet membrane fresh air handling unit needs to turn on the fresh air mode and whether it needs to turn on the wet membrane mode.

[0067] In possible implementations, the temperature and humidity controller compares the collected environmental parameters with the target temperature and humidity adjustment range, and determines the target air supply state of the wet-film fresh air handling unit based on the comparison result. For example, the current collected environmental parameters are compared with the target temperature and humidity adjustment range to determine whether air exchange and humidification are needed, thereby determining the target air supply state. For example, the outdoor dry-bulb temperature is compared with the target temperature and humidity ranges. If the outdoor temperature is high and the humidity is low relative to the target temperature and humidity ranges, then the target air supply state of the wet-film fresh air handling unit is a fresh air + wet-film state.

[0068] Step 208: Adjust the operating status of the wet membrane fresh air handling unit according to the target air supply status.

[0069] The operating status of the evaporative air handling unit (EHU) is used to characterize the operating status information of each component of the EHU. For example, the operating status includes whether each component in the EHU is open and the degree of opening. Components include air valves, evaporative humidification components, return air vents, and ventilation valves. After determining the target air supply state of the EHU, this target air supply state is converted into the operating status information of each component of the EHU.

[0070] For example, when the outdoor temperature is high temperature and low humidity, and the target working state is fresh air + wet film state, the fresh air valve and exhaust air valve are 100% open, the return air valve is closed, the wet film humidification component is open, the wet film front air valve, the wet film side ventilation valve and the air supply fan are in an adjustable state, and the exhaust fan is in the rated working state.

[0071] In one possible implementation, the temperature and humidity controller determines the operating state of the wet film fresh air unit based on the target air supply state, and then controls each component of the wet film fresh air unit to adjust to the corresponding operating state in order to change the temperature and humidity of the indoor environment.

[0072] The method provided in the above embodiments involves collecting environmental parameters of the environment where the wet-film fresh air handling unit is located; obtaining the target temperature and humidity adjustment range of the wet-film fresh air handling unit; determining the target air supply state of the wet-film fresh air handling unit based on the environmental parameters and the target temperature and humidity adjustment range; and adjusting the operating state of the wet-film fresh air handling unit according to the target air supply state. The method provided in this application only requires inputting the required air supply temperature and humidity range, combined with the temperature and humidity conditions of the data center environment, to determine a suitable operating mode for the wet-film fresh air handling unit. This maximizes the utilization of outdoor air cooling capacity, extends the natural cooling time, and achieves water and energy saving effects.

[0073] In one embodiment, such as Figure 3 As shown, based on the environmental parameters collected and the target temperature and humidity adjustment range, the target air supply state of the wet-film fresh air handling unit is determined, including:

[0074] Step 302: Determine the absolute environmental parameters of the environment in which the wet membrane fresh air handling unit is located based on the environmental collected parameters and atmospheric pressure.

[0075] Step 304: Determine the enthalpy-humidity diagram corresponding to atmospheric pressure based on environmental absolute parameters and atmospheric pressure.

[0076] Step 306: Determine the target air supply status of the wet film fresh air handling unit in the enthalpy-humidity diagram based on the target temperature and humidity adjustment range and the enthalpy-humidity diagram.

[0077] Among these, the absolute environmental parameters characterize temperature and humidity under specific conditions. Compared to environmental acquisition parameters, which can be directly obtained from sensors, absolute environmental parameters need to be determined in conjunction with atmospheric pressure. For example, outdoor dry-bulb temperature and relative humidity are collected by sensors, and combined with the atmospheric pressure at the location of the wet-film fresh air unit, the outdoor wet-bulb temperature, outdoor dew point temperature, outdoor humidity, and absolute humidity are calculated. The atmospheric pressure at the location of the wet-film fresh air unit can be set by the user or obtained in real time through installed monitoring equipment.

[0078] It should be noted that the calculation formulas or methods used in calculating environmental absolute parameters based on absolute environmental parameters and atmospheric pressure may vary depending on the application scenario. In meteorology, the calculation of wet-bulb temperature may involve more complex physical processes and formulas. In certain specific application scenarios, simplified calculation methods or table lookup methods may exist to quickly obtain the wet-bulb temperature. Therefore, in this embodiment, given the outdoor dry-bulb temperature, outdoor relative humidity, and atmospheric pressure, the specific formula for calculating the environmental absolute parameters can be set according to the specific application scenario. Alternatively, it can be determined using a table lookup method.

[0079] An enthalpy-humidity diagram graphically represents the relationships between various parameters of moist air. A moist air system containing a certain mass of dry air may also have variations in vapor content. It has one more degree of freedom in state change than a simple compressible system; therefore, the state of moist air is determined by three independent parameters. A planar diagram shows only two independent parameters for each state point. Therefore, humidity diagrams are often created at a certain total pressure, using two more independent parameters as coordinates. The diagram shows line clusters for constant moisture content (d), constant vapor partial pressure (pv), constant dew point temperature (td), constant enthalpy (h), constant wet-bulb temperature (tw), constant dry-bulb temperature (t), and constant relative humidity. In this application, when performing air exchange, the amount exchanged needs to be clearly defined. Therefore, an enthalpy-humidity diagram can be used to determine the mixed state parameters by proportionally mixing two known states of air.

[0080] Therefore, based on the outdoor wet-bulb temperature, outdoor dew point temperature, outdoor air enthalpy, outdoor air absolute humidity, and atmospheric pressure, an enthalpy-humidity chart corresponding to the outdoor environment at that atmospheric pressure is determined. Then, the enthalpy-humidity chart is divided into several regions according to the target temperature and humidity adjustment range. Each region corresponds to a specific air condition. Under different air conditions, the wet-film fresh air handling unit operates in different ways to adjust the indoor air temperature and humidity through fresh air intake or wet-film humidification components.

[0081] In the method provided in the above embodiments, the enthalpy-humidity diagram corresponding to the outdoor environment is determined by collecting environmental parameters and atmospheric pressure, which enables a comprehensive analysis of the outdoor air and obtains more accurate analysis results, so as to adjust the temperature and humidity of the indoor air by means of the outdoor air.

[0082] In one embodiment, the target temperature and humidity adjustment range includes at least one of the following four conditions: maximum permissible temperature, minimum permissible temperature, maximum permissible relative humidity, and minimum permissible relative humidity.

[0083] In the method provided in the above embodiments, the target temperature and humidity adjustment range gives the range of temperature and the range of humidity, so that the supply air temperature and humidity of the wet film fresh air unit is not a fixed point, but a range, which can maximize the utilization of the cooling capacity of outdoor air and extend the service time of natural cooling.

[0084] In one embodiment, the target air supply state of the wet-film fresh air handling unit in the enthalpy-humidity diagram is determined based on environmental absolute parameters and the enthalpy-humidity diagram, including:

[0085] Based on the target temperature and humidity adjustment range, the enthalpy-humidity chart is divided into several air state regions;

[0086] By comparing the absolute environmental parameters with the target temperature and humidity adjustment range, the target air state region corresponding to the absolute environmental parameters in several air state regions is determined, and the air supply state corresponding to the target air state region is taken as the target air supply state of the wet film fresh air unit.

[0087] In an enthalpy-humidity chart, each point represents a different air state. In this embodiment, based on the temperature and humidity in the temperature and humidity control conditions, the enthalpy-humidity chart is divided into several regions according to isotherms and isohumidities. All points in each region represent one air state. It should be noted that the number of air state regions is related to the temperature and humidity in the temperature and humidity control conditions. For example, if the temperature and humidity control conditions include a maximum allowable temperature, a minimum allowable temperature, a maximum allowable relative humidity, and a minimum allowable relative humidity, then two isotherms and two isohumidities can divide the enthalpy-humidity chart into 7 regions.

[0088] Each air condition zone corresponds to a specific air supply state of the wet-film fresh air handling unit. By controlling the wet-film fresh air handling unit to operate in the corresponding air supply state, the indoor air temperature and humidity can be adjusted to the target state using outdoor air under that air condition. Therefore, by comparing the absolute environmental parameters with the target temperature and humidity adjustment range, the target air condition zone corresponding to the absolute environmental parameters is determined, and the air supply state corresponding to the target air condition zone is taken as the target air supply state of the wet-film fresh air handling unit.

[0089] In the method provided in the above embodiments, the enthalpy-humidity chart is divided into several air state regions by the target temperature and humidity adjustment range. The number of air supply states of the wet film fresh air unit is reasonably limited by the target temperature and humidity adjustment range. When adjusting the temperature and humidity, it is only necessary to determine the air state region to which the current outdoor air belongs, and the corresponding air supply state can be called to adjust the wet film fresh air unit.

[0090] In one embodiment, such as Figure 4 As shown, the operating status of the wet-film fresh air handling unit is adjusted according to the target air supply status, including:

[0091] Step 402: Obtain the target operating mode of the wet film fresh air handling unit;

[0092] Step 404: Adjust the working status of the wet film fresh air handling unit according to the target air supply status and target working mode.

[0093] The target operating mode refers to the operating mode determined based on different energy-saving indicators. Target operating modes include water-saving priority mode and cooling priority mode. Water-saving priority mode determines the opening and closing degree of the two sets of air valves in the wet-film fresh air handling unit based on the target of the minimum allowable humidity or the maximum allowable temperature when controlling indoor temperature and humidity. Cooling priority mode determines the opening and closing degree of the two sets of air valves in the wet-film fresh air handling unit based on the target of the mixed regulation of the maximum allowable humidity C or the minimum allowable temperature D.

[0094] The operating status of the wet-film fresh air handling unit is adjusted based on the opening and closing degrees of the dampers determined by the target air supply status and target operating mode. For example, the wet-film fresh air handling unit includes a fresh air damper, a return air damper, a wet-film module, a wet-film inlet damper, and a wet-film bypass damper. The target air supply status includes a wet-film 100% fresh air status, which indicates that the outdoor air is in a high-temperature, low-humidity state. Therefore, the air mixing ratio of the wet-film inlet damper and the wet-film bypass damper is determined according to the target operating mode. The fresh air damper is controlled to open, the return air damper to close, and the wet-film module to open. The wet-film inlet damper and the wet-film bypass damper are then controlled to mix the outdoor fresh air according to the air mixing ratio.

[0095] In the method provided in the above embodiments, based on the target working mode, the control strategy can have a water-saving priority mode and a cooling priority mode, which makes it convenient for users to select the water-saving mode first under low load conditions and to use the cooling priority mode first under high load conditions.

[0096] This application embodiment also provides a temperature and humidity control system, the system including a temperature and humidity controller and a wet film fresh air unit;

[0097] The wet-film fresh air handling unit includes a fresh air valve, a return air valve, an exhaust fan array, a supply fan array, a return air outlet, a supply air outlet, a wet-film humidification component, a wet-film bypass ventilation valve, a wet-film in-situ air valve, an outdoor temperature and humidity sensor, a fresh and return air mixed temperature and humidity sensor, and a supply air temperature and humidity sensor. The fresh air valve, return air valve, exhaust fan array, supply fan array, return air outlet, and supply air outlet are used to regulate the flow of fresh air, while the wet-film humidification component, wet-film bypass ventilation valve, and wet-film in-situ air valve are used to regulate the humidity of the fresh air.

[0098] The temperature and humidity controller is used to control the operation of the wet film fresh air unit, specifically to perform the steps in any of the above method embodiments.

[0099] For the purpose of understanding the embodiments of this solution, a specific embodiment is provided below. A temperature and humidity control method and system are provided, wherein the system includes a wet-film fresh air handling unit and a control panel, and the structure of the wet-film fresh air handling unit can be as follows: Figure 1 As shown, it can also be as follows Figure 5 As shown, the system includes a fresh air valve 1, a return air valve 2, an exhaust fan array 3, a return air outlet 4, a supply fan array + supply air outlet 5, a wet film humidification assembly 6, a wet film bypass ventilation valve 7, a wet film inlet valve 8, an outdoor temperature and humidity sensor 9, a fresh and return air mixed temperature and humidity sensor 10, and a supply air temperature and humidity sensor 11. The fresh air valve 1, return air valve 2, exhaust fan array 3, return air outlet 4, and supply fan array + supply air outlet 5 are used to regulate the flow of fresh air, while the wet film humidification assembly 6, the wet film bypass ventilation valve 7, and the wet film inlet valve 8 are used to regulate the humidity of the fresh air.

[0100] The control panel includes a temperature and humidity controller and an interactive interface. The interactive interface is used to exchange information with external systems. The temperature and humidity controller interacts with the interactive interface to perform the following steps:

[0101] Obtain the target temperature and humidity control range of the wet film fresh air handling unit, wherein the target temperature and humidity control range includes the maximum allowable temperature, the minimum allowable temperature, the maximum allowable relative humidity, and the minimum allowable relative humidity;

[0102] The environmental parameters of the environment where the wet film fresh air unit is located are collected, including outdoor dry bulb temperature and outdoor relative humidity.

[0103] Determine the outdoor wet-bulb temperature, outdoor dew point temperature, outdoor air enthalpy, and outdoor air absolute moisture content based on atmospheric pressure, outdoor dry-bulb temperature, and outdoor air relative humidity.

[0104] Based on atmospheric pressure, outdoor wet-bulb temperature, outdoor dew point temperature, outdoor air enthalpy, and outdoor air absolute humidity, determine the enthalpy-humidity diagram corresponding to the outdoor environment.

[0105] In the enthalpy-humidity chart, the first intersection point of the minimum allowable relative humidity and the maximum allowable temperature, the second intersection point of the maximum allowable temperature and the maximum allowable relative humidity, the third intersection point of the maximum allowable relative humidity and the minimum allowable temperature, and the fourth intersection point of the minimum allowable temperature and the minimum allowable relative humidity are determined. Based on the first intersection point, the second intersection point, the third intersection point, and the fourth intersection point, the enthalpy-humidity chart is divided into several air state regions.

[0106] Based on the outdoor dry-bulb temperature, outdoor air enthalpy, outdoor air relative humidity, and outdoor air absolute humidity, determine the target air state region corresponding to the absolute environmental parameters of the outdoor environment, and use the air supply state corresponding to the target air state region as the target air supply state of the wet film fresh air unit.

[0107] Adjust the operating status of the wet film fresh air handling unit according to the target air supply status.

[0108] Specifically, such as Figure 6 As shown, the enthalpy-humidity diagram contains 7 air state regions, each corresponding to a supply air condition and an operating condition:

[0109] In Zone 1, the outdoor dry-bulb temperature is greater than the maximum allowable temperature B, and the outdoor air enthalpy is less than the enthalpy at the second intersection point. The outdoor temperature is characterized by high temperature and low humidity. Using the wet-film 100% fresh air mode, the fresh air valve 1 is fully open, the return air valve 2 is fully closed, the wet-film assembly 6 is open, and the wet-film inlet valve 8 and the wet-film side ventilation valve 7 divide the outdoor fresh air into two parts with different proportions. The air entering through the wet-film inlet valve 8 is further cooled by the wet film and mixed with the air entering through the wet-film side ventilation valve 7. Users can select either a water-saving priority mode or a cooling priority mode. The water-saving priority mode uses the minimum allowable humidity A or the maximum allowable temperature B as the target for the mixing conditions of the two sets of valves, while the cooling priority mode uses the maximum allowable humidity C or the minimum allowable temperature D as the target for mixing adjustment.

[0110] In Zone 2, the outdoor dry-bulb temperature is lower than B, the outdoor relative humidity is lower than A, and the outdoor enthalpy is greater than the enthalpy at the fourth intersection. The outdoor temperature is not high, but it is relatively dry. Using the wet-film 100% fresh air + wet-film mode, the fresh air valve 1 is fully open, the return air valve 2 is fully closed, the wet-film assembly 6 is open, and the wet-film inlet valve 8 and the wet-film side ventilation valve 7 divide the outdoor fresh air into two parts with different proportions. The air entering through the wet-film inlet valve 8 is further cooled by the wet film and mixed with the air entering through the wet-film side ventilation valve 7. Users can select either a water-saving priority mode or a cooling priority mode. The water-saving priority mode uses the minimum allowable humidity A as the target for the mixing conditions of the two sets of valves, while the cooling priority mode uses the boundary between the minimum allowable temperature D and the maximum allowable humidity C as the target for mixing adjustment.

[0111] In Zone 3, the absolute moisture content of the outdoor air is lower than that at the fourth intersection point, and the enthalpy of the outdoor air is also lower than that at the fourth intersection point. The outdoor temperature is low and dry. The fresh air / return air mixing mode is used, with the mixing target being Zone 2, and then the operation follows the pattern of Zone 2. At this time, the fresh air valve 1 is adjusted as needed, the return air valve 2 is adjusted as needed, the wet film assembly 6 is operating, the wet film inlet valve 8 is adjusted as needed, and the wet film bypass valve 7 is adjusted as needed.

[0112] In Zone 4, the outdoor dry-bulb temperature is between the maximum allowable temperature B and the minimum allowable temperature D, and the outdoor relative humidity is between the maximum allowable humidity C and the minimum allowable humidity A. With suitable outdoor temperature and humidity, the system operates in 100% fresh air mode. At this time, fresh air valve 1 is fully open, return air valve 2 is fully closed, wet membrane assembly 6 is closed, wet membrane inlet valve 8 is closed, and wet membrane side ventilation valve 7 is open.

[0113] In Zone 5, the outdoor dry-bulb temperature is below the minimum allowable temperature D, and the outdoor absolute moisture content is between the moisture content at the fourth and third nodes. The outdoor temperature is low but the humidity is suitable; therefore, a fresh air / return air mixing mode is used, with the mixing target being the minimum allowable temperature D. At this time, fresh air valve 1 is adjusted as needed, return air valve 2 is adjusted as needed, wet membrane assembly 6 is closed, wet membrane inlet valve 8 is closed, and wet membrane bypass vent valve 7 is open.

[0114] In Zone 6, the outdoor relative humidity is greater than the maximum permissible humidity C, and the outdoor absolute humidity is greater than the absolute humidity at the third intersection point but less than the absolute humidity at the second intersection point. A fresh air / return air mixing mode is used, with the mixing target being the maximum permissible humidity C. At this time, fresh air valve 1 is adjusted as needed, return air valve 2 is adjusted as needed, wet membrane assembly 6 is closed, wet membrane inlet valve 8 is closed, and wet membrane bypass vent valve 7 is open.

[0115] Zone 7 cannot use this system and requires an additional cooling source.

[0116] The methods and systems provided in the above embodiments use few parameters. Only the desired temperature and humidity adjustment range needs to be input, and the temperature and humidity controller can automatically calculate, judge, analyze, and interpret to provide a suitable operating state. The supply air temperature and humidity in the air supply state are not a fixed point, but a range, which can maximize the utilization of the cooling capacity of outdoor air and extend the service life of natural cooling.

[0117] It should be understood that although the steps in the flowcharts of the above embodiments are shown sequentially according to the arrows, these steps are not necessarily executed in the order indicated by the arrows. Unless explicitly stated herein, there is no strict order restriction on the execution of these steps, and they can be executed in other orders. Moreover, at least some steps in the flowcharts of the above embodiments may include multiple steps or multiple stages. These steps or stages are not necessarily completed at the same time, but can be executed at different times. The execution order of these steps or stages is not necessarily sequential, but can be performed alternately or in turn with other steps or at least some of the steps or stages of other steps.

[0118] Based on the same inventive concept, this application also provides a temperature and humidity control device. The solution provided by this device is similar to the solution described in the above method. Therefore, the specific limitations of one or more temperature and humidity control device embodiments provided below can be found in the limitations of the temperature and humidity control method above, and will not be repeated here.

[0119] In one embodiment, such as Figure 7 As shown, a temperature and humidity control device 700 is provided, including a data acquisition module 701, a condition acquisition module 702, a status determination module 703, and a control module 704, wherein:

[0120] Data acquisition module 701 is used to collect environmental parameters of the environment in which the wet film fresh air handling unit is located;

[0121] Condition acquisition module 702 is used to acquire the target temperature and humidity adjustment range of the wet film fresh air unit;

[0122] The status determination module 703 is used to determine the target air supply status of the wet film fresh air unit based on the environmental collected parameters and the target temperature and humidity adjustment range.

[0123] The control module 704 is used to adjust the operating status of the wet film fresh air handling unit according to the target air supply status.

[0124] Each module in the aforementioned temperature and humidity control device can be implemented entirely or partially through software, hardware, or a combination thereof. These modules can be embedded in the processor of a computer device in hardware form or independent of it, or stored in the memory of a computer device in software form, so that the processor can call and execute the corresponding operations of each module.

[0125] like Figure 8 As shown in the figure, this application provides a computer device 800, which includes a memory 801 and a processor 802.

[0126] Among them, memory 801 is used to store computer-executable instructions that can be executed by the processor;

[0127] The processor 802 implements the various steps of the method in the above embodiments when executing computer execution instructions. For details, please refer to the relevant descriptions in the foregoing method embodiments.

[0128] Optionally, the memory 801 can be either independent or integrated with the processor 802. When the memory 801 is configured independently, the computer device also includes a bus for connecting the memory 801 and the processor 802.

[0129] This application also provides a computer-readable storage medium storing computer-executable instructions, which, when executed by a processor, implement the steps of the methods described above.

[0130] This application also provides a computer program product, including computer execution instructions, which, when executed by a processor, implement the various steps in the methods described above.

[0131] Those skilled in the art will understand that all or part of the processes in the methods of the above embodiments can be implemented by a computer program instructing related hardware. The computer program can be stored in a non-volatile computer-readable storage medium, and the computer execution instructions in the computer program, when executed, can include the processes of the embodiments of the above methods. Any references to memory, databases, or other media used in the embodiments provided in this application can include at least one of non-volatile and volatile memory. Non-volatile memory can include read-only memory (ROM), magnetic tape, floppy disk, flash memory, optical memory, high-density embedded non-volatile memory, resistive random access memory (ReRAM), magnetic random access memory (MRAM), ferroelectric random access memory (FRAM), phase change memory (PCM), graphene memory, etc. Volatile memory can include random access memory (RAM) or external cache memory, etc. By way of illustration and not limitation, RAM can take many forms, such as Static Random Access Memory (SRAM) or Dynamic Random Access Memory (DRAM). The databases involved in the embodiments provided in this application may include at least one type of relational database and non-relational database. Non-relational databases may include, but are not limited to, blockchain-based distributed databases. The processors involved in the embodiments provided in this application may be general-purpose processors, central processing units, graphics processing units, digital signal processors, programmable logic devices, quantum computing-based data processing logic devices, etc., and are not limited to these.

[0132] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0133] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of this patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this application should be determined by the appended claims.

Claims

1. A method of temperature and humidity control, characterized by, The application is applied to a temperature and humidity controller used for controlling operation of a wet membrane fresh air handling unit used for adjusting temperature and humidity of an indoor environment, and the method comprises: collecting environment collection parameters of an environment where the wet membrane fresh air handling unit is located, the environment collection parameters being used for representing temperature and humidity information of the environment directly acquired by a sensor; acquiring a target temperature and humidity adjustment range of the wet membrane fresh air handling unit; determining a target air supply state of the wet membrane fresh air handling unit according to the environment collection parameters and the target temperature and humidity adjustment range; adjusting a working state of the wet membrane fresh air handling unit according to the target air supply state.

2. The method of claim 1, wherein, The determination of the target air supply state of the wet membrane fresh air handling unit according to the environment collection parameters and the target temperature and humidity adjustment range comprises: determining an environment absolute parameter of the environment where the wet membrane fresh air handling unit is located according to the environment collection parameters and atmospheric pressure; determining an enthalpy-humidity chart corresponding to the atmospheric pressure according to the environment absolute parameter and the atmospheric pressure; determining the target air supply state of the wet membrane fresh air handling unit in the enthalpy-humidity chart according to the target temperature and humidity adjustment range and the enthalpy-humidity chart.

3. The method of claim 2, wherein, The environment collection parameters comprise outdoor dry-bulb temperature and outdoor air relative humidity; correspondingly, the environment absolute parameter comprises outdoor wet-bulb temperature, outdoor dew-point temperature, outdoor air enthalpy and outdoor air absolute humidity.

4. The method of claim 3, wherein, The target temperature and humidity adjustment range comprises at least one of the following four conditions, i.e., a highest allowable temperature, a lowest allowable temperature, a highest allowable relative humidity and a lowest allowable relative humidity.

5. The method of claim 4, wherein, The determination of the target air supply state of the wet membrane fresh air handling unit in the enthalpy-humidity chart according to the target temperature and humidity adjustment range and the enthalpy-humidity chart comprises: dividing the enthalpy-humidity chart into a plurality of air state regions according to the target temperature and humidity adjustment range; comparing the environment absolute parameter with the target temperature and humidity adjustment range to determine a target air state region corresponding to the environment absolute parameter in the plurality of air state regions, and taking an air supply state corresponding to the target air state region as the target air supply state of the wet membrane fresh air handling unit.

6. The method of claim 1, wherein, The adjustment of the working state of the wet membrane fresh air handling unit according to the target air supply state comprises: acquiring a target working mode of the wet membrane fresh air handling unit; adjusting the working state of the wet membrane fresh air handling unit according to the target air supply state and the target working mode.

7. The method of claim 6, wherein, The wet membrane fresh air handling unit comprises a fresh air damper, a return air damper, a wet membrane assembly, a wet membrane face damper and a wet membrane bypass damper, the target air supply state comprises a wet membrane full fresh air state used for indicating that a state of outdoor air is a high-temperature and low-humidity state; The adjustment of the working state of the wet membrane fresh air handling unit according to the target air supply state and the target working mode comprises: determining an air mixing ratio of the wet membrane face damper and the wet membrane bypass damper according to the target working mode; Controlling the fresh air damper to open, the return air damper to close, the wet membrane assembly to open, and controlling the wet membrane face damper and the wet membrane bypass damper to mix outdoor fresh air according to the air mixing ratio.

8. A temperature and humidity control system, characterized by, The system comprises a temperature and humidity controller and a wet membrane fresh air handling unit. The wet membrane fresh air handling unit comprises a fresh air damper, a return air damper, an exhaust fan array, a supply fan array, a return air outlet, a supply air outlet, a wet membrane humidifying assembly, a wet membrane bypass damper, a wet membrane face damper, an outdoor temperature and humidity sensor, a new return air mixed temperature and humidity sensor, and a supply air temperature and humidity sensor; the fresh air damper, the return air damper, the exhaust fan array, the supply fan array, the return air outlet, and the supply air outlet are used to adjust the flow of fresh air, and the wet membrane humidifying assembly, the wet membrane bypass damper, and the wet membrane face damper are used to adjust the humidity of the fresh air. The temperature and humidity controller is used to control the operation of the wet membrane fresh air handling unit, and specifically to execute the method steps of any one of claims 1-7.

9. A computer device, comprising: Comprise: a processor, and a memory connected to the processor in communication; the memory stores computer execution instructions; the processor executes the computer execution instructions stored in the memory to realize the method of any one of claims 1 to 7.

10. A computer-readable storage medium, characterized in that, The computer readable storage medium stores computer execution instructions, and the computer execution instructions are executed by the processor to realize the method of any one of claims 1 to 7.

11. A computer program product, characterised in that, Comprise computer execution instructions, and the computer execution instructions are executed by the processor to realize the method of any one of claims 1 to 7.

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