Humidification system and air conditioner

Abstract

The utility model provides a humidifying system and an air conditioner. The humidifying system comprises an air duct, a wet film humidifier and a heating module. The air duct comprises an air inlet and an air supply outlet, the wet film humidifier and the heating module are arranged in the air duct, and the heating module is arranged between the air inlet of the air duct and the wet film humidifier. The wet film humidifier is arranged between the air inlet and the air supply outlet, so that air can be humidified through the wet film humidifier in the process of being conveyed from the air inlet to the air supply outlet, and the heating module is arranged between the air inlet and the wet film humidifier, so that the air can be heated by the heating module before reaching the wet film humidifier; therefore, the temperature of air reaching the wet film humidifier can be increased, the humidifying efficiency of the wet film humidifier is improved, and even in a low-temperature environment, the humidifying efficiency of the wet film humidifier can be guaranteed through the heating module.

Description

Technical Field

[0001] This utility model relates to the field of humidification, and more particularly to a humidification system and an air conditioner. Background Technology

[0002] Wet film humidifiers utilize natural evaporation to achieve isenthalpic humidification, preventing the formation of white mist and consuming less energy, making them suitable for food preservation. However, in low-temperature environments, the air's ability to carry water vapor decreases, slowing down the evaporation rate of moisture on the surface of the wet film humidifier and thus reducing its humidification efficiency. Utility Model Content

[0003] The main purpose of this invention is to propose a humidification system and air conditioner, which aims to solve the problem of low humidification efficiency of wet film humidifiers in low-temperature environments in the prior art.

[0004] To achieve the above objectives, this utility model provides a humidification system, which includes an air duct, a wet film humidifier, and a heating module; the air duct includes an air inlet and an air outlet, the wet film humidifier and the heating module are disposed within the air duct, and the heating module is disposed between the air inlet of the air duct and the wet film humidifier.

[0005] Optionally, the air duct further includes a first mixing chamber and a return air duct. The first mixing chamber is disposed between the air inlet of the air duct and the heating module, and the first mixing chamber is also connected to the first air outlet of the return air duct.

[0006] Optionally, the air duct further includes a second mixing chamber, which is disposed between the wet film humidifier and the air outlet of the air duct, and the second mixing chamber is also connected to the second air outlet of the return air duct.

[0007] Optionally, the humidification system further includes an air supply filter; the air supply filter is disposed between the wet film humidifier and the second mixing chamber.

[0008] Optionally, the humidification system further includes a fresh air filtration device; the fresh air filtration device is disposed between the first mixing chamber and the heating module.

[0009] Optionally, the humidification system further includes a cooling coil; the cooling coil is disposed between the wet film humidifier and the air outlet of the air duct.

[0010] Optionally, the heating module is an electric heater.

[0011] Optionally, the humidification system further includes a first temperature sensor, a second temperature sensor, and a humidity sensor; wherein:

[0012] The first temperature sensor is located on the side of the heating module near the wet film humidifier, the second temperature sensor is located on the side of the wet film humidifier near the air outlet, and the humidity sensor is located on the side of the wet film humidifier near the air outlet.

[0013] Optionally, the humidification system further includes a third temperature sensor; wherein:

[0014] The third temperature sensor is located on the side of the first mixing chamber near the heating module.

[0015] To achieve the above objectives, this utility model also provides an air conditioner, which includes the humidification system described above.

[0016] This utility model proposes a humidification system and air conditioner. The humidification system includes an air duct, a wet film humidifier, and a heating module. The air duct includes an air inlet and an air outlet. The wet film humidifier and the heating module are disposed within the air duct, with the heating module positioned between the air inlet and the wet film humidifier. By placing the wet film humidifier between the air inlet and the air outlet, the air is humidified as it travels from the air inlet to the air outlet. The heating module, positioned between the air inlet and the wet film humidifier, heats the air before it reaches the humidifier, thereby increasing the temperature of the air reaching the humidifier and improving its humidification efficiency. Therefore, even in low-temperature environments, the heating module ensures the humidification efficiency of the wet film humidifier. Attached Figure Description

[0017] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with the present invention and, together with the description, serve to explain the principles of the present invention.

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] One or more embodiments are illustrated by way of example with reference numerals in the accompanying drawings. These illustrations do not constitute a limitation on the embodiments. Elements with the same reference numerals in the drawings are denoted as similar elements. Unless otherwise stated, the figures in the drawings are not to be limited by scale.

[0020] Figure 1 This is a schematic diagram of the humidification system of this utility model;

[0021] Figure 2 This is a distribution diagram of state points on the enthalpy-humidity chart of the humidification system of this utility model;

[0022] Figure 3 This is a schematic diagram of the overall process of the humidification method of this utility model;

[0023] Figure 4 This is a schematic diagram of the modular structure of the humidification device of this utility model.

[0024] Explanation of icon numbers:

[0025]

[0026] Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0028] The following disclosure provides numerous different embodiments or examples for implementing various structures of the present invention. To simplify the disclosure, specific examples of components and arrangements are described below. These are merely examples and are not intended to limit the scope of the invention. Furthermore, reference numerals and / or letters may be repeated in different examples. Such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed.

[0029] It should be understood that the specific embodiments described herein are merely illustrative of the present invention and are not intended to limit the present invention. To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present application, and not all of them. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of this application.

[0030] This utility model provides a humidification system, see [link]. Figure 1 , Figure 1This is a schematic diagram of the humidification system of this utility model; the humidification system 0 includes an air duct, a wet film humidifier 05, and a heating module 04; the air duct includes an air inlet 02 and an air outlet 071, the wet film humidifier 05 and the heating module 04 are disposed in the air duct, and the heating module 04 is disposed between the air inlet 02 of the air duct and the wet film humidifier 05.

[0031] The air duct is the channel for air circulation in the humidification system. The air duct includes an air inlet 02 and an air outlet 071. Outside air enters the air duct through the air inlet 02, is humidified through the air duct, and is then output to the humidification position through the air outlet 071. In the scenario of humidifying room 1, the air inlet 02 of the air duct can be connected to the outside, and the air outlet 071 can be connected to room 1. Outside air enters the air duct through the air inlet 02 for humidification and is then output to room 1 through the air outlet 071 to humidify room 1.

[0032] The wet film humidifier 05 utilizes the natural evaporation process to achieve isenthalpic humidification. The wet film humidifier 05 is installed within the air duct. As air flows from the air inlet 02 to the air outlet 071, it passes through the wet film humidifier 05, which humidifies the air. In high-temperature environments, air can carry more water vapor; therefore, the moisture on the surface of the wet film humidifier 05 evaporates faster, resulting in higher humidification efficiency. However, in low-temperature environments, the air's ability to carry water vapor weakens, and the wet film humidifier 05 removes moisture more slowly, leading to lower humidification efficiency.

[0033] The heating module 04 is used to heat the air. The heating module 04 is located between the air inlet 02 and the wet film humidifier 05, so that the air passes through the heating module 04 before reaching the wet film humidifier 05. Therefore, by heating the air through the heating module 04, the temperature of the air reaching the wet film humidifier 05 can be increased, thereby improving the humidification efficiency of the wet film humidifier 05.

[0034] The specific type of heating module 04 can be set based on actual needs, such as an electric heater.

[0035] In this embodiment, a wet film humidifier 05 is installed between the air inlet 02 and the air outlet 071, so that the air can be humidified by the wet film humidifier 05 during the process of air being transported from the air inlet 02 to the air outlet 071. A heating module 04 is installed between the air inlet 02 and the wet film humidifier 05, so that the air can be heated by the heating module 04 before reaching the wet film humidifier 05, thereby increasing the temperature of the air reaching the wet film humidifier 05 and improving the humidification efficiency of the wet film humidifier 05. Therefore, even in low-temperature environments, the humidification efficiency of the wet film humidifier 05 can be guaranteed by the heating module 04.

[0036] Furthermore, the air duct also includes a first mixing chamber 03 and a return air duct 01. The first mixing chamber 03 is disposed between the air inlet 02 of the air duct and the heating module 04. The first mixing chamber 03 is also connected to the first air outlet 012 of the return air duct 01.

[0037] The return air vent 011 of the return air duct 01 is connected to room 1. In this embodiment, the air entering the duct includes fresh air entering from the outside environment and return air recovered from room 1; the fresh air enters the first mixing chamber 03 from the air inlet 02, and the return air enters the return air duct 01 from the return air vent 011 and enters the first mixing chamber 03 through the first air outlet 012 of the return air duct 01; the fresh air and the return air are mixed in the first mixing chamber 03.

[0038] By setting return air duct 01 to input return air, the demand for fresh air volume can be reduced, thereby reducing energy consumption; at the same time, it can also stabilize the temperature and humidity of room 1. The specific fresh and return air mixing ratio can be set according to actual needs, such as setting the fresh and return air ratio to 20%, that is, fresh air volume accounts for 80% and return air volume accounts for 20%.

[0039] Furthermore, the humidification system also includes a fresh air filter device 031; the fresh air filter device 031 is disposed between the first mixing chamber 03 and the heating module 04.

[0040] A fresh air filter 031 is installed between the first mixing chamber 03 and the heating module 04. The mixed air will pass through the fresh air filter 031 before entering the heating module 04. Therefore, impurities entering the humidification system can be filtered out, thereby preventing external impurities from entering the system and affecting the normal operation of the system.

[0041] Furthermore, the air duct also includes a second mixing chamber 07, which is disposed between the wet film humidifier 05 and the air outlet 071 of the air duct. The second mixing chamber 07 is also connected to the second air outlet 013 of the return air duct 01.

[0042] In this embodiment, the air output to the room includes the air humidified by the wet film humidifier 05 and the return air recovered from the room; the humidified air is output to the second mixing chamber 07 after being humidified by the wet film humidifier 05, and the return air enters the second mixing chamber 07 through the second air outlet 013 of the return air duct 01; the humidified air and the return air are mixed again in the second mixing chamber 07.

[0043] By setting return air duct 01 to input return air, the demand for intake air volume can be further reduced, thereby reducing energy consumption; the specific air volume value of the secondary return air volume can be set based on the actual operating status of the system.

[0044] When setting various air volumes, you can determine them based on the actual air volume requirements and settings; for example, first determine the real-time indoor heat and humidity load, return air status point N, and target supply air status point O.

[0045] See Figure 2 The real-time indoor heat and humidity load can be determined by controlling the temperature difference and the humidity difference. The temperature difference is the difference between the target temperature and the current indoor temperature, and the humidity difference is the difference between the target humidity and the current indoor humidity.

[0046] The return air status point N indicates the temperature and relative humidity of the return air, which can be obtained by setting a temperature sensor and a humidity sensor 055 at the return air inlet 011 of the return air duct 01.

[0047] The target air supply state point O indicates the desired air supply temperature and humidity. The target air supply state point O can be determined by the real-time indoor heat and humidity load and the maximum air supply temperature difference. First, determine the real-time indoor heat and humidity load line on the enthalpy-humidity chart, and take the intersection of the real-time indoor heat and humidity load line and the maximum air supply temperature difference line as the target air supply state point O. The specific temperature difference value of the maximum air supply temperature difference line can be set according to actual needs, such as 3℃.

[0048] The return air status point N indicates the real-time status of room 1, the target supply air status point O indicates the desired supply air status, and the real-time indoor heat and humidity load indicates the control requirements. Therefore, the required supply air volume can be determined by the return air status point N, the target supply air status point O, and the real-time indoor heat and humidity load.

[0049] The airflow within the duct can be considered conserved, meaning the intake airflow equals the supply airflow. The duct contains three intake points: fresh air, primary return air, and secondary return air. Fresh air is the air entering through intake 02. Primary return air is the return air output from the first outlet 012 of return air duct 01. Secondary return air is the return air output from the second outlet 013 of return air duct 01. Therefore, we can obtain:

[0050] G O =G W +G N1 +G N2

[0051] Among them, G o For air supply volume, G w For fresh air volume, G N1 For the return air volume, G N2 This refers to the secondary return air volume.

[0052] From the heat formula, we can obtain:

[0053] (G N1 +G W )×NO=G N2 ×LO

[0054] Wherein, N is the return air state point, O is the target supply air state point, and L is the initial state point of the secondary return air.

[0055] The initial state point L of the secondary return air is the intersection of the straight line containing the return air state point N and the target supply air state point O on the enthalpy-humidity chart with the target relative humidity line. The target relative humidity line can be selected based on actual needs, such as the 95% relative humidity line.

[0056] Therefore, given that the supply air volume, return air state point N, and target supply air state point O are known, the initial state point L of the secondary return air can be calculated.

[0057] Once the initial state point L of the secondary return air is determined, the target supply air volume can be obtained, which is the sum of the fresh air volume and the primary return air volume. Since the ratio of the fresh air volume to the primary return air volume is known, such as the aforementioned 20% fresh-to-return air ratio, that is:

[0058] G N1 =4G W

[0059] Given the target supply air volume, the fresh air volume and the primary return air volume can be obtained.

[0060] Furthermore, the humidification system also includes an air supply filter device 072; the air supply filter device 072 is disposed between the wet film humidifier 05 and the second mixing chamber 07.

[0061] An air supply filter 072 is installed between the wet film humidifier 05 and the second mixing chamber 07. The humidified and mixed air will pass through the air supply filter 072 before being output to room 1. Therefore, impurities entering the humidification system can be filtered out, thereby preventing impurities from entering room 1 and affecting the air quality of room 1.

[0062] Furthermore, the humidification system also includes a cooling coil 06; the cooling coil 06 is disposed between the wet film humidifier 05 and the air outlet 071 of the air duct.

[0063] It is understandable that the heating operation of the heating module 04 will cause the air temperature to rise; while the humidifier is in cooling mode, it is necessary to avoid the supply air temperature from being too high and affecting the indoor temperature; therefore, in this embodiment, a cooling coil 06 is provided between the wet film humidifier 05 and the air outlet 071; the air entering the air duct is first heated by the heating module 04, and then humidified in the wet film humidifier 05, thereby improving the humidification efficiency. After humidification is completed, it is cooled by the cooling coil 06, thereby reducing the supply air temperature and avoiding affecting the indoor cooling effect.

[0064] When both the cooling coil 06 and the air supply filter 072 are installed, the air supply filter 072 can be placed between the cooling coil 06 and the air outlet 071 to achieve a better filtration effect.

[0065] The specific temperature of cooling coil 06 can be set based on actual needs. For example, after the initial state point L of the secondary return air is determined, the temperature corresponding to the initial state point L of the secondary return air is the desired temperature before mixing with the secondary return air. Therefore, setting the coil temperature of cooling coil 06 to the temperature corresponding to the initial state point L of the secondary return air will ensure that the air temperature after mixing with the secondary return air reaches the temperature corresponding to the target air supply state point O. Specifically, the evaporation temperature of the evaporator side corresponding to cooling coil 06 can be set to the dew point temperature corresponding to the initial state point L of the secondary return air. Since the air needs to be mixed with the secondary return air after being cooled by cooling coil 06, in order to further ensure that the temperature corresponding to the target air supply state point O is reached, the coil temperature of cooling coil 06 can be set to a temperature lower than the temperature corresponding to the initial state point L of the secondary return air.

[0066] Furthermore, the humidification system also includes a first temperature sensor 041, a second temperature sensor 051, and a humidity sensor 055; wherein:

[0067] The first temperature sensor 041 is disposed on the side of the heating module 04 near the wet film humidifier 05, the second temperature sensor 051 is disposed on the wet film humidifier 05, and the humidity sensor 055 is disposed on the side of the wet film humidifier 05 near the air outlet 071.

[0068] To achieve more precise humidification and temperature control, it is necessary to monitor the operating status of the humidification system. Specifically, in this embodiment, a first temperature sensor 041 is installed on the side of the heating module 04 near the wet film humidifier 05 to detect the temperature of the air heated by the heating module 04 and obtain the current heating temperature; a second temperature sensor 051 is installed on the wet film humidifier 05 to detect the surface temperature of the wet film humidifier 05; and a humidity sensor 055 is installed on the side of the wet film humidifier 05 near the air outlet 071 to detect the moisture content of the air humidified by the wet film humidifier 05 and obtain the output moisture content.

[0069] It is understandable that as the current heating temperature increases, the temperature of the air entering the wet film humidifier 05 rises, thus enhancing the humidification effect of the wet film humidifier 05 and increasing the output moisture content. Similarly, an increase in the surface temperature of the wet film humidifier 05 itself enhances its humidification effect and increases the output moisture content. That is, there is an interactive relationship between the current heating temperature, output moisture content, and surface temperature. In this embodiment, by detecting the current heating temperature, output moisture content, and surface temperature, the actual heating needs can be determined based on these parameters, thereby achieving control of the heating module 04 and the wet film humidifier 05. Specifically, in... When the output humidity content does not meet the output humidity requirements, the output humidity content can be increased by improving the heating effect of the heating module 04 to increase the current heating temperature, or by increasing the surface temperature of the wet film humidifier 05. However, since increasing the surface temperature of the wet film humidifier 05 will affect the overall operation of the system, make the control more complex, and increase the power consumption, it is preferable to prioritize heating through the heating module 04. When the heating effect of the heating module 04 cannot meet the requirements for improving humidification efficiency, the output humidity content can be further increased by increasing the surface temperature of the wet film humidifier 05.

[0070] Furthermore, the humidification system also includes a third temperature sensor 032; wherein:

[0071] The third temperature sensor 032 is located on the side of the first mixing chamber 03 near the heating module 04.

[0072] In this embodiment, a third temperature sensor 032 is provided on the side of the first mixing chamber 03 near the heating module 04, so that the mixed air state point C after the fresh air and return air are mixed can be detected; the heating state point C1 after the heating module 04 performs isohumidification heating and the humidification state point C2 after the wet film humidifier 05 performs isoenthalpic humidification can be determined through the mixed air state point C.

[0073] By using the mixed air state point C, the condition of the mixed air can be determined, thereby determining whether heating is required via the heating module.

[0074] It should be noted that, based on actual testing needs, corresponding sensors can also be set to detect the parameters that need to be detected. For example, a temperature sensor and a humidity sensor 055 can be set at the return air inlet 011 of the return air duct 01; and a temperature sensor and a humidity sensor 055 can be set in the outdoor environment.

[0075] This utility model provides a humidification method, referring to... Figure 1 , Figure 1 This is a flowchart illustrating the first embodiment of the humidification method of this utility model, the method comprising the following steps:

[0076] Step S10: Obtain the humidification status of the wet film humidifier;

[0077] The humidification status is used to indicate the humidification status of the wet film humidifier; for example, the humidification status can specifically indicate the moisture content and temperature of the air after humidification by the wet film humidifier.

[0078] Step S20: Determine the target heating parameters corresponding to the humidification state;

[0079] The target heating parameter indicates the heating settings of the heating module.

[0080] The heating module is designed to increase the temperature of the air arriving at the wet film humidifier, thereby improving the humidification efficiency of the wet film humidifier. Therefore, when the humidification efficiency of the wet film humidifier is low, the heating module is needed to heat it. The lower the humidification efficiency, the higher the heating level indicated by the target heating parameter should be, in order to achieve a greater improvement in humidification efficiency.

[0081] Step S30: Control the heating module to heat the air output to the wet film humidifier with the target heating parameters.

[0082] After the target heating parameters are determined, the heating module is heated according to the target heating parameters to increase the temperature of the air output to the wet film humidifier and improve the humidification efficiency.

[0083] This embodiment installs a wet film humidifier between the air inlet and the air outlet, allowing the air to be humidified as it travels from the air inlet to the air outlet. A heating module is installed between the air inlet and the wet film humidifier, allowing the air to be heated before reaching the humidifier. This increases the temperature of the air reaching the humidifier and improves its humidification efficiency. Therefore, even in low-temperature environments, the heating module ensures the humidification efficiency of the wet film humidifier.

[0084] Furthermore, in the second embodiment of the humidification method of the present invention based on the first embodiment, the humidification state includes output humidity, and step S20 includes the following steps:

[0085] Step S21: Obtain the target moisture content and determine whether the output moisture content reaches the target moisture content;

[0086] Step S22: If the output moisture content does not reach the target moisture content, then the target heating parameter is determined to be increasing the heating temperature.

[0087] The target humidity level is the humidity level required for the air currently output by the humidification system.

[0088] The output humidity is the actual humidity of the air after it has been humidified by the wet film humidifier.

[0089] When the output humidity does not reach the target humidity, the humidification efficiency of the wet film humidifier is considered low and does not meet the current humidification requirements. Therefore, it is necessary to increase the humidification efficiency of the wet film humidifier. This requires increasing the temperature of the air reaching the humidifier. Thus, the target heating parameter is set to increase the heating temperature to improve the degree of air heating by the heating module. This allows for accurate control of the heating module based on the specific humidification efficiency. The form of the specific target heating parameter can be set according to actual needs. For example, the heating temperature in the target heating parameter can indicate the temperature of the air after heating by the heating module, such as increasing the temperature of the air after heating by the heating module by 1°C based on the current heating temperature, where the current heating temperature is the current temperature of the air after heating by the heating module. Alternatively, the heating temperature in the target heating parameter can indicate the setting parameter of the heating module, such as increasing the power of the heating module by a step based on the current heating power to improve the heating effect. The specific step can be set according to actual needs.

[0090] To avoid significant changes in system status that could affect system stability, a fixed heating step size, such as 1°C, can be set when the target heating parameter indicates an increase in heating temperature. The heating temperature can be increased in one heating step at a time.

[0091] Step S23: If the output moisture content reaches the target moisture content, then obtain the initial state point of the secondary return air.

[0092] Step S24: Determine the dew point temperature corresponding to the initial state point of the secondary return air as the target temperature;

[0093] Step S25: Set the coil temperature corresponding to the cooling coil to the target temperature.

[0094] If the output humidity reaches the target humidity, the humidification efficiency of the wet film humidifier is considered to meet the current humidification requirements. Therefore, there is no need to increase the heating temperature. In this case, the air adjustment of the cooling coil has been completed, that is, the heating and humidification operations have been completed. At this time, cooling is required through the cooling coil to reduce the temperature of the air supply and avoid affecting the indoor cooling effect.

[0095] Once the initial state point L of the secondary return air is determined, the temperature corresponding to the initial state point L is the desired temperature before mixing with the secondary return air. Therefore, setting the coil temperature of the cooling coil to the temperature corresponding to the initial state point L of the secondary return air will ensure that the air temperature after mixing with the secondary return air reaches the temperature corresponding to the target supply air state point O. Specifically, the evaporation temperature on the evaporator side of the cooling coil can be set to the dew point temperature corresponding to the initial state point L of the secondary return air. Since the air needs to be mixed with the secondary return air after being cooled by the cooling coil, in order to further ensure that the temperature corresponding to the target supply air state point O is reached, the coil temperature of the cooling coil can be set to a temperature lower than the temperature corresponding to the initial state point L of the secondary return air.

[0096] Further, step S22 includes the following steps:

[0097] Step S221: Obtain the current heating temperature of the heating module;

[0098] Step S222: Determine whether the current heating temperature has reached the maximum temperature threshold;

[0099] Step S223: If the current heating temperature reaches the maximum temperature threshold, control the wet film humidifier to increase the surface temperature, and determine the target heating parameter to maintain the current heating temperature;

[0100] Step S224: If the current heating temperature has not reached the maximum temperature threshold, then the target heating parameter is determined to be increasing the heating temperature.

[0101] Understandably, when the current heating temperature of the air reaching the humidifier exceeds the surface temperature of the humidifier, the rate of increase in humidification efficiency slows down with rising heating temperature, resulting in reduced heating benefits. Therefore, once the air is heated to a certain temperature by the heating module, further heating can be stopped, and instead, the surface temperature of the humidifier can be increased to achieve a significant improvement in humidification efficiency. However, since increasing the surface temperature of the humidifier affects the overall system operation, complicates control, and increases power consumption, heating is prioritized through the heating module. When the heating effect of the heating module is insufficient to improve humidification efficiency (i.e., when the maximum temperature threshold is reached), the surface temperature of the humidifier is then increased to further improve the output humidity content. This approach achieves both convenience and improved humidification efficiency.

[0102] The specific value of the maximum temperature threshold can be set based on actual needs, such as 30 degrees Celsius.

[0103] Similarly, when increasing the surface temperature of a wet film humidifier, in order to avoid large changes in the system state and affect the stability of the system, a fixed heating step size, such as 5°C, can be set, with the heating temperature increasing in one heating step each time.

[0104] Further, step S21 includes the following steps:

[0105] Step S211: Determine the return air state point, wherein the return air state point includes return air temperature and return air humidity;

[0106] Step S212: Determine the target air supply state point, wherein the target air supply state point includes the target air supply temperature and the target air supply humidity;

[0107] Step S213: Determine the straight line between the return air state point and the target supply air state point, and take the intersection of the straight line and the target relative humidity line on the enthalpy-humidity chart as the initial state point of the secondary return air.

[0108] Step S214: The moisture content corresponding to the initial state point of the secondary return air is taken as the target moisture content.

[0109] The return air status point N indicates the temperature and relative humidity of the return air, which can be obtained by installing temperature and humidity sensors at the return air inlet of the return air duct.

[0110] The target air supply state point O indicates the desired air supply temperature and humidity. The target air supply state point O can be determined by the real-time indoor heat and humidity load and the maximum air supply temperature difference. First, determine the real-time indoor heat and humidity load line on the enthalpy-humidity chart, and take the intersection of the real-time indoor heat and humidity load line and the maximum air supply temperature difference line as the target air supply state point O. The specific temperature difference value of the maximum air supply temperature difference line can be set according to actual needs, such as 3℃.

[0111] The initial state point L of the secondary return air is the intersection of the straight line containing the return air state point N and the target supply air state point O on the enthalpy-humidity chart with the target relative humidity line. The target relative humidity line can be selected based on actual needs, such as the 95% relative humidity line.

[0112] The initial state point L of the secondary return air indicates the air state before mixing with the secondary return air, that is, the air state after humidification by the wet film humidifier. Therefore, the moisture content corresponding to the initial state point L of the secondary return air is taken as the target moisture content so that the moisture content of the air after humidification by the wet film humidifier can meet the initial state point L of the secondary return air.

[0113] Further, prior to step S10, the following is included:

[0114] Obtain the initial mixing temperature and determine whether the initial mixing temperature has reached the preset initial temperature;

[0115] If the initial mixing temperature does not reach the preset initial temperature, the heating module is controlled to raise the temperature of the air output to the wet film humidifier to the preset initial temperature.

[0116] If the initial mixing temperature reaches the preset initial temperature, the humidification status of the wet film humidifier is obtained.

[0117] The primary mixing temperature is the air temperature output from the first mixing chamber.

[0118] When the primary mixing temperature is too low, the humidification efficiency of the wet film humidifier will also be too low. Therefore, when the humidification system is started, the primary mixing temperature is detected first. If the primary mixing temperature does not reach the preset initial temperature, it is considered that the air needs to be heated. Therefore, the air is quickly heated to the preset initial temperature by the heating module, and then the humidification status is obtained and subsequent operations are performed to quickly start the humidification system. When heating the air to the preset initial temperature, in order to avoid large changes in the system status and affect the stability of the system, a fixed heating step size, such as 1℃, can be set, and the heating temperature is increased by one heating step size each time.

[0119] The specific value of the preset initial temperature can be set according to actual needs, such as 15℃.

[0120] Furthermore, in the third embodiment of the humidification method of the present invention based on the first embodiment, the method further includes the following steps:

[0121] Step S40: Obtain the outdoor ambient temperature;

[0122] Step S50: Determine whether the outdoor ambient temperature is greater than the ambient temperature threshold.

[0123] Step S60: If the outdoor ambient temperature is greater than the ambient temperature threshold, then the target heating parameter is determined to be no heating.

[0124] Outdoor ambient temperature can be obtained by installing a temperature sensor outdoors, or by obtaining it through a network.

[0125] When the outdoor ambient temperature is high, the temperature of the fresh air entering the air duct will also be high. Under these circumstances, good humidification efficiency can be achieved without heating the incoming air through the heating module. In order to reduce the energy consumption of the humidification system, the target heating parameter is set to no heating, that is, the heating module is turned off.

[0126] Specifically, an ambient temperature threshold is set to determine whether the outdoor ambient temperature is high. When the outdoor ambient temperature is higher than the threshold, it is considered high; when the outdoor ambient temperature is lower than or equal to the threshold, it is considered insufficient. The specific value of the ambient temperature threshold can be set based on actual needs, such as 35℃.

[0127] Furthermore, in the fourth embodiment of the humidification method of the present invention based on the first embodiment, the method further includes the following steps:

[0128] Step S70: Determine the target air supply volume;

[0129] Step S80: Obtain the return air status point, the target supply air status point, and the secondary return air initial status point, and determine the secondary return air volume based on the target supply air volume, the return air status point, the target supply air status point, and the secondary return air initial status point.

[0130] Step S90: Subtract the secondary return air volume from the target supply air volume to obtain the target intake air volume;

[0131] Step S100: Obtain the preset fresh air-return air ratio, and determine the fresh air volume and the primary return air volume according to the preset fresh air-return air ratio, wherein the sum of the fresh air volume and the primary return air volume is the target air intake volume.

[0132] First, determine the real-time indoor heat and humidity load, return air status point N, and target supply air status point O.

[0133] The real-time indoor heat and humidity load can be determined by controlling the temperature difference and the humidity difference. The temperature difference is the difference between the target temperature and the current indoor temperature, and the humidity difference is the difference between the target humidity and the current indoor humidity.

[0134] The return air status point N indicates the temperature and relative humidity of the return air, which can be obtained by installing temperature and humidity sensors at the return air inlet of the return air duct.

[0135] The target air supply state point O indicates the desired air supply temperature and humidity. The target air supply state point O can be determined by the real-time indoor heat and humidity load and the maximum air supply temperature difference. First, determine the real-time indoor heat and humidity load line on the enthalpy-humidity chart, and take the intersection of the real-time indoor heat and humidity load line and the maximum air supply temperature difference line as the target air supply state point O. The specific temperature difference value of the maximum air supply temperature difference line can be set according to actual needs, such as 3℃.

[0136] The return air state point N indicates the real-time status of the room, the target supply air state point O indicates the desired supply air status, and the real-time indoor heat and humidity load indicates the control requirements. Therefore, the required supply air volume can be determined by using the return air state point N, the target supply air state point O, and the real-time indoor heat and humidity load.

[0137] The airflow within the duct can be considered conserved, meaning the intake airflow equals the supply airflow. The duct contains three intake points: fresh air, primary return air, and secondary return air. Fresh air is the air entering through the intake vent. Primary return air is the return air output from the first outlet of the return air duct. Secondary return air is the return air output from the second outlet of the return air duct. Therefore, we can obtain:

[0138] G O =G W +G N1 +G N2

[0139] Among them, G o For air supply volume, G w For fresh air volume, G N1 For the return air volume, G N2 This refers to the secondary return air volume.

[0140] From the heat formula, we can obtain:

[0141] (G N1 +G W )×NO=G N2 ×LO

[0142] Wherein, N is the return air state point, O is the target supply air state point, and L is the initial state point of the secondary return air.

[0143] The initial state point L of the secondary return air is the intersection of the straight line containing the return air state point N and the target supply air state point O on the enthalpy-humidity chart with the target relative humidity line. The target relative humidity line can be selected based on actual needs, such as the 95% relative humidity line.

[0144] Therefore, given that the supply air volume, return air state point N, and target supply air state point O are known, the initial state point L of the secondary return air can be calculated.

[0145] Once the initial state point L of the secondary return air is determined, the target supply air volume can be obtained, which is the sum of the fresh air volume and the primary return air volume. Since the ratio of the fresh air volume to the primary return air volume is known, such as the aforementioned 20% fresh-to-return air ratio, that is:

[0146] G N1 =4G W

[0147] Given the target supply air volume, the fresh air volume and the primary return air volume can be obtained.

[0148] By setting specific airflow values ​​at each state point, the airflow can meet the system's wind power requirements.

[0149] The following is based on Figure 3 The overall control process of this application is described as follows:

[0150] 1. Determining System State Points in Cooling and Humidification Mode. First, determine the return air state point N (e.g., temperature 10℃, relative humidity 85%). Then, determine the target supply air state point O based on the real-time indoor heat and humidity load and the maximum supply air temperature difference (e.g., 3℃). The intersection of the line connecting points N and O on the enthalpy-humidity chart with the 95% relative humidity line is the initial secondary return air state point L. On the line connecting the outdoor state point W and the indoor state point N, determine the mixed air state point C after the fresh and return air are mixed, based on a 20% fresh-return air ratio. Point C1 is the heating state point after point C is humidified by the electric heater, and point C2 is the humidification state point after point C1 is enthalpy-humidified by the wet-film humidifier.

[0151] 2. Determining the air volume of each part of the system in cooling and humidification mode. First, determine the supply air volume GO by using the indoor heat and humidity load, return air state point N, and target supply air state point O. Determine the secondary return air volume GN2 by using the initial state point L of the secondary return air. Based on a fresh air return air ratio of 20%, the fresh air volume GW and the primary return air volume GN1 can be determined respectively.

[0152] 3. Determine the stable indoor temperature (e.g., 10℃) and relative humidity standard value (e.g., 85%) at the return air state point N by detection. When the unit is in cooling mode, it is set as a secondary return air system. Fresh air and return air are mixed in the first mixing chamber at a fresh-to-return air ratio of 20%. Then, the air temperature TC1 at state point C1 after the fresh-to-return air mixture is controlled to be 15℃ by the electric heater, and the surface temperature of the wet film humidifier is set to 20℃.

[0153] To reduce the number of reheat components in the unit, while ensuring sufficient fresh air volume, the return air method in the cooling and humidification mode is set to secondary return air.

[0154] When the outdoor air temperature is higher than 35℃, the temperature after mixing with a fresh air return ratio of 20% may be higher than 15℃. At this time, the electric heater is not turned on, and the mixed air is directly sent into the wet film humidifier.

[0155] 4. In cooling and humidifying mode, after the heated air is humidified by the wet film humidifier, it is determined whether its moisture content WC2 is greater than the target moisture content WL at the initial state point L of the secondary return air. If the moisture content is less than the target moisture content, the temperature of the air mixed with the new return air is heated to TC1 and increased to 16℃ (in increments of 1℃), and humidification continues while the moisture content is determined. This continues until the moisture content at the humidification state point C2 after humidification is greater than the target moisture content, at which point the humidification requirement is considered met. Then, the cooling coil in the cooling system is used to cool C2 to the temperature corresponding to L. By adjusting the airflow of the secondary return air and the air (L) after heating, humidification, and cooling, the mixture is brought to the target supply air state point O.

[0156] Point O is the target supply air state point, determined by the internal heat and humidity load of room 1 and the maximum supply air temperature difference (e.g., 3℃). L is the intersection of the line connecting the return air state point (N) and the target supply air state point (O) with the 95% relative humidity line. The evaporation temperature on the evaporation side is controlled as the dew point temperature of L.

[0157] Since the humidification efficiency increases at a slower rate as the inlet air temperature rises, the maximum temperature of the air after the electric heater heats the fresh and return air (e.g., 30°C) is set, and the minimum temperature is the primary mixing temperature TC.

[0158] If the humidification requirement cannot be met when the fresh and return air mixing temperature reaches the maximum value of 30℃, the surface temperature of the wet film humidifier will be increased to 25℃ (in increments of 5℃), and then readjusted. If the fresh and return air temperature is the minimum value TC, the humidification requirement can be met without electric heating, saving energy consumption of the electric heating part.

[0159] 5. Calculate the cooling capacity based on the indoor load, and meet the indoor temperature requirements through the cooling coil.

[0160] It should be noted that, for the sake of simplicity, the foregoing method embodiments are all described as a series of actions. However, those skilled in the art should understand that this application is not limited to the described order of actions, as some steps may be performed in other orders or simultaneously according to this application. Furthermore, those skilled in the art should also understand that the embodiments described in the specification are preferred embodiments, and the actions and modules involved are not necessarily essential to this application.

[0161] Through the above description of the embodiments, those skilled in the art can clearly understand that the methods according to 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 this application, in essence, 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) and includes several instructions to cause a terminal device (which may be a mobile phone, computer, server, or network device, etc.) to execute the methods described in the various embodiments of this application.

[0162] This utility model also protects an air conditioner that includes a humidification system. The structure of the humidification system can be referred to in the above embodiments, and will not be repeated here. Therefore, since the air conditioner of this embodiment adopts the technical solution of the above-described humidification system, it has all the beneficial effects of the above-described humidification system.

[0163] Reference Figure 4 In terms of hardware structure, the humidification device may include components such as a communication module 10, a memory 20, and a processor 30. In the humidification device, the processor 30 is connected to both the memory 20 and the communication module 10. The memory 20 stores a computer program, which is executed by the processor 30. When the computer program is executed, it implements the steps of the above-described method embodiment.

[0164] The communication module 10 can connect to external communication devices via a network. The communication module 10 can receive requests from the external communication devices and can also send requests, instructions, and information to the external communication devices. The external communication devices can be other humidification devices, servers, or IoT devices, such as televisions, etc.

[0165] The memory 20 can be used to store software programs and various data. The memory 20 may primarily include a program storage area and a data storage area. The program storage area may store the operating system, at least one application program required for a function (such as obtaining the humidification status of the wet film humidifier), etc.; the data storage area may include a database, and may store data or information created based on system usage. Furthermore, the memory 20 may include high-speed random access memory, and may also include non-volatile memory, such as at least one disk storage device, flash memory device, or other volatile solid-state storage device.

[0166] The processor 30 is the control center of the humidifier. It connects various parts of the humidifier via various interfaces and lines. By running or executing software programs and / or modules stored in the memory 20, and by calling data stored in the memory 20, it performs various functions and processes data, thereby providing overall monitoring of the humidifier. The processor 30 may include one or more processing units; optionally, the processor 30 may integrate an application processor and a modem processor. The application processor mainly handles the operating system, user interface, and applications, while the modem processor mainly handles wireless communication. It is understood that the modem processor may not be integrated into the processor 30.

[0167] although Figure 4 Not shown, but the above-described humidification device may further include a circuit control module, which is used to connect to a power source to ensure the normal operation of other components. Those skilled in the art will understand that... Figure 4 The humidification device structure shown does not constitute a limitation on the humidification device and may include more or fewer components than shown, or combine certain components, or have different component arrangements.

[0168] This utility model also proposes a computer-readable storage medium on which a computer program is stored. The computer-readable storage medium may be... Figure 4 The memory 20 in the humidification device may be at least one of ROM (Read-Only Memory) / RAM (Random Access Memory), magnetic disk, optical disk, etc. The computer-readable storage medium includes several instructions to cause a terminal device with a processor (which may be a television, car, mobile phone, computer, server, terminal, or network device, etc.) to execute the methods described in the various embodiments of this utility model.

[0169] In this utility model, the terms "first", "second", "third", "fourth" and "fifth" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0170] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0171] Although embodiments of the present invention have been shown and described above, the scope of protection of the present invention is not limited thereto. It is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, and substitutions to the above embodiments within the scope of the present invention, and such changes, modifications, and substitutions should all be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention should be determined by the scope of the claims.

Claims

1. A humidification system, characterized in that, The humidification system includes an air duct, a wet film humidifier, and a heating module; the air duct includes an air inlet and an air outlet, the wet film humidifier and the heating module are disposed in the air duct, and the heating module is disposed between the air inlet of the air duct and the wet film humidifier.

2. The humidification system as described in claim 1, characterized in that, The air duct also includes a first mixing chamber and a return air duct. The first mixing chamber is disposed between the air inlet of the air duct and the heating module, and the first mixing chamber is also connected to the first air outlet of the return air duct.

3. The humidification system as described in claim 2, characterized in that, The air duct also includes a second mixing chamber, which is disposed between the wet film humidifier and the air outlet of the air duct, and the second mixing chamber is also connected to the second air outlet of the return air duct.

4. The humidification system as described in claim 3, characterized in that, The humidification system further includes an air supply filter device; the air supply filter device is disposed between the wet film humidifier and the second mixing chamber.

5. The humidification system as described in claim 2, characterized in that, The humidification system also includes a fresh air filtration device; the fresh air filtration device is disposed between the first mixing chamber and the heating module.

6. The humidification system as described in claim 1, characterized in that, The humidification system also includes a cooling coil; the cooling coil is disposed between the wet film humidifier and the air outlet of the air duct.

7. The humidification system as described in claim 1, characterized in that, The heating module is an electric heater.

8. The humidification system according to any one of claims 1 to 7, characterized in that, The humidification system further includes a first temperature sensor, a second temperature sensor, and a humidity sensor; wherein: The first temperature sensor is located on the side of the heating module near the wet film humidifier, the second temperature sensor is located on the side of the wet film humidifier near the air outlet, and the humidity sensor is located on the side of the wet film humidifier near the air outlet.

9. The humidification system according to claim 8, characterized in that, The humidification system also includes a third temperature sensor; wherein: The third temperature sensor is located on the side of the first mixing chamber near the heating module.

10. An air conditioner, characterized in that, The air conditioner includes a humidification system as described in any one of claims 1 to 9.

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