A combined air conditioning and humidifying method and device based on steam and micro-mist impinging flow state

Abstract

The application relates to the technical field of air conditioners, and discloses a combined air conditioner humidifying method and device based on steam and micro-mist impinging flow state, which comprises the following steps: obtaining a humidifying parameter of a combined air conditioner, and determining a supply air humidity content according to the humidifying parameter; based on the supply air humidity content and a preset linear regression function, an adjustment amount is calculated; based on the adjustment amount and a preset proportional value, a valve opening degree is calculated, and a control signal is generated according to the valve opening degree. The supply air humidity content is determined through the humidifying parameter of the combined air conditioner, and then the micro-mist adjustment amount and the steam adjustment amount are calculated according to the supply air humidity content and the preset linear regression function, so that the signal for controlling the micro-mist and steam valve opening degrees can be generated according to the micro-mist adjustment amount and the steam adjustment amount, the appropriate micro-mist and steam are caused to collide, the high-grade heat energy of high-temperature and high-pressure steam is used for liquid droplet vaporization in micro-mist humidification, the micro-mist humidification efficiency is improved, and the step-by-step utilization of the high-grade heat energy is realized.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of air conditioners, in particular to a combined air conditioner humidification method and device based on steam and micro-mist impinging flow state. BACKGROUND

[0002] Since the workshop of a cigarette factory needs a strict temperature and humidity environment, the combined air conditioner humidification method currently used by the cigarette factory is mainly achieved by arranging a micro-mist humidifier and a steam humidifier in sequence in an air duct, and the principle is to realize humidity control by directly spraying micro-mist or high-temperature and high-pressure steam in the air conditioning supply process. Under normal circumstances, the combined air conditioner of the cigarette factory will preferentially start the micro-mist humidification, but when the micro-mist humidification effect is not up to standard, the micro-mist humidification and the steam humidification will be started at the same time.

[0003] However, when the micro-mist humidification and the steam humidification are started at the same time, the liquid droplets generated by the micro-mist humidification cannot be efficiently utilized, and a certain proportion of the liquid droplets that cannot be completely vaporized will stay on the wall surface of the equipment in the form of water column, and the high-level heat energy carried by the steam in the steam humidification cannot be directly used for the micro-mist humidification, thereby causing the combined air conditioner to be unable to effectively realize the step-by-step utilization of the heat energy carried by the high-temperature and high-pressure steam in the humidification link. Therefore, how to strengthen the vaporization of the micro-mist liquid droplets by the heat energy carried by the steam when the micro-mist and steam humidification are started at the same time is a link that needs to be considered in the current combined air conditioner regulation and control. SUMMARY

[0004] To solve the above-mentioned problems that the micro-mist liquid droplets cannot be efficiently utilized and the step-by-step utilization of the heat energy carried by the high-temperature and high-pressure steam cannot be effectively realized when the micro-mist and steam humidification are started at the same time, the embodiments of the present application provide a combined air conditioner humidification method and device based on steam and micro-mist impinging flow state, and the technical scheme is as follows:

[0005] In a first aspect, the embodiments of the present application provide a combined air conditioner humidification method based on steam and micro-mist impinging flow state, comprising:

[0006] Obtaining a humidification parameter of the combined air conditioner, and determining a supply air moisture content according to the humidification parameter;

[0007] Based on the supply air moisture content and a preset linear regression function, an adjustment amount is calculated, wherein the adjustment amount includes a steam adjustment amount and a micro-mist adjustment amount;

[0008] Based on the adjustment amount and a preset proportional value, a valve opening degree is calculated, and a control signal is generated according to the valve opening degree.

[0009] In an optional scheme of the first aspect, the humidification parameter includes relative humidity and expected temperature;

[0010] Determining the supply air moisture content according to the humidification parameter includes:

[0011] An isotherm is determined in the psychrometric chart according to the relative humidity, and an isobaric line is determined in the psychrometric chart according to the desired temperature;

[0012] The supply air moisture content is determined based on the intersection of the isotherm and the isobaric line.

[0013] In a further alternative of the first aspect, before the adjustment amount is calculated based on the supply air moisture content and the preset linear regression function, the method further comprises:

[0014] When it is detected that the steam in the impingement zone of the combination air conditioner is in a superheated state, a current temperature in the impingement zone is obtained; wherein the current temperature is higher than a preset temperature;

[0015] A ratio expression of the steam quality and the micro fog quality is determined according to the current temperature and a preset first formula;

[0016] The constraint condition is determined according to the ratio expression.

[0017] In a further alternative of the first aspect, the adjustment amount is calculated based on the supply air moisture content and the preset linear regression function, comprising:

[0018] The target steam quantity and the target micro fog quantity are calculated according to the supply air moisture content and the preset linear regression function;

[0019] A first steam adjustment amount is calculated based on the target steam quantity and the received actual steam quantity, and a first micro fog adjustment amount is calculated according to the target micro fog quantity and the received actual micro fog quantity;

[0020] When it is detected that the target steam quantity and the target micro fog quantity satisfy the constraint condition, the adjustment amount is determined based on the first steam adjustment amount and the first micro fog adjustment amount;

[0021] When it is detected that the target steam quantity and the target micro fog quantity do not satisfy the constraint condition, the preset linear regression function is optimized to obtain a target function;

[0022] A second steam adjustment amount and a second micro fog adjustment amount are calculated according to the supply air moisture content and the target function;

[0023] The adjustment amount is determined based on the second steam adjustment amount and the second micro fog adjustment amount.

[0024] In a further alternative of the first aspect, the adjustment amount is determined based on the first steam adjustment amount and the first micro fog adjustment amount, comprising:

[0025] The carrier gas adjustment amount is calculated according to the target micro fog quantity and a preset mixing ratio;

[0026] The first steam adjustment amount, the first fine mist adjustment amount, and the carrier gas adjustment amount are used as adjustment amounts.

[0027] In another optional solution of the first aspect, the preset proportional value includes a preset first proportional value, a preset second proportional value, and a preset third proportional value;

[0028] The valve opening is calculated based on the adjustment amount and the preset proportional value, and a control signal is generated according to the valve opening, including:

[0029] Calculating a first valve opening according to the steam adjustment amount and a preset first proportional value;

[0030] Calculating the second valve opening according to the micro-mist adjustment amount and the preset second proportional value;

[0031] Calculating the third valve opening according to the carrier gas adjustment amount and the preset third proportional value;

[0032] A control signal is generated according to the first valve opening, the second valve opening, and the third valve opening.

[0033] In another optional solution of the first aspect, the preset proportional value includes a preset first proportional value and a preset second proportional value;

[0034] The valve opening is calculated based on the adjustment amount and the preset proportional value, and a control signal is generated according to the valve opening, including:

[0035] Calculating a first valve opening according to the steam adjustment amount and a preset first proportional value;

[0036] Calculating the second valve opening according to the micro-mist adjustment amount and the preset second proportional value;

[0037] Calculating a third valve opening according to the second valve opening and a preset second formula;

[0038] A control signal is generated according to the first valve opening, the second valve opening, and the third valve opening.

[0039] In a second aspect, an embodiment of the present application provides a combined air conditioning and humidification device based on a steam and mist impingement flow state, comprising:

[0040] The first processing module is used to obtain humidification parameters of the combined air conditioner and determine the humidity content of the supply air according to the humidification parameters;

[0041] The second processing module is used to calculate the adjustment amount based on the humidity content of the supply air and a preset linear regression function; wherein the adjustment amount includes the steam adjustment amount and the mist adjustment amount;

[0042] The third processing module is used to calculate the valve opening based on the adjustment amount and the preset proportional value, and generate a control signal according to the valve opening.

[0043] In a third aspect, an embodiment of the present application further provides a combined air conditioning and humidification device based on a steam and mist impingement flow state, comprising a processor and a memory;

[0044] The processor is connected to the memory;

[0045] a memory for storing executable program code;

[0046] The processor runs the program corresponding to the executable program code by reading the executable program code stored in the memory, so as to implement the combined air conditioning and humidification method based on steam and mist impact flow provided by the first aspect of the embodiment of the present application or any implementation method of the first aspect.

[0047] In a fourth aspect, an embodiment of the present application provides a computer storage medium, which stores a computer program. The computer program includes program instructions. When the program instructions are executed by a processor, the combined air-conditioning and humidification method based on steam and mist impact flow provided by the first aspect of the embodiment of the present application or any one of the implementation methods of the first aspect can be implemented.

[0048] The beneficial effects of the technical solutions provided by some embodiments of this specification include at least:

[0049] In the combined air conditioning humidification process based on the steam and micro-mist collision flow state, the supply air humidity content is determined by the humidification parameters of the combined air conditioning, and then the micro-mist adjustment amount and the steam adjustment amount are calculated according to the supply air humidity content and the preset linear regression function. Therefore, a signal for controlling the opening of the micro-mist and steam valves can be generated according to the micro-mist adjustment amount and the steam adjustment amount, so that an appropriate amount of micro-mist collides with steam, and the high-quality thermal energy of the high-temperature and high-pressure steam is used to vaporize the droplets in the micro-mist humidification airflow, thereby improving the micro-mist humidification efficiency and realizing the cascade utilization of high-quality thermal energy. BRIEF DESCRIPTION OF THE DRAWINGS

[0050] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0051] Figure 1 This is an overall flow chart of a combined air conditioning and humidification method based on steam and mist impingement flow provided in an embodiment of the present application;

[0052] Figure 2A steam and micro-mist impinging flow distribution map provided for an embodiment of the present application;

[0053] Figure 3 A control principle diagram of a combined air conditioner humidification method based on steam and micro-mist impinging flow state provided for an embodiment of the present application;

[0054] Figure 4 A structure schematic diagram of a combined air conditioner humidification device based on steam and micro-mist impinging flow state provided for an embodiment of the present application;

[0055] Figure 5 A structure schematic diagram of a combined air conditioner humidification device based on steam and micro-mist impinging flow state provided for another embodiment of the present application. DETAILED DESCRIPTION

[0056] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application.

[0057] In the following description, the terms "first", "second", etc. are only for the purpose of description and cannot be understood as indicating or implying relative importance. The following description provides multiple embodiments of the present application, and different embodiments can be replaced or combined, so the present application can also be considered to include all possible combinations of the same and / or different embodiments described. Therefore, if one embodiment includes features A, B and C, and another embodiment includes features B and D, the present application should also be considered to include an embodiment including one or more all other possible combinations of A, B, C and D, although this embodiment can not be explicitly described in the following content.

[0058] The following description provides examples and does not limit the scope, applicability or examples set forth in the claims. Changes can be made to the functions and arrangements of the described elements without departing from the scope of the present application. Various processes or components can be appropriately omitted, replaced or added in each example. For example, the described methods can be executed in different order from the described order, and various steps can be added, omitted or combined. In addition, features described with respect to some examples can be combined into other examples.

[0059] Please refer to Figure 1 , Figure 1 A whole flowchart of a combined air conditioner humidification method based on steam and micro-mist impinging flow state provided for an embodiment of the present application is shown.

[0060] As Figure 1 shown, the combined air conditioner humidification method based on steam and micro-mist impinging flow state can at least include the following steps:

[0061] Step 101, obtaining a humidification parameter of the combination air conditioner, and determining a supply air humidity content according to the humidification parameter.

[0062] In the embodiments of the present application, the combination air conditioner humidification method based on the steam and micro-fog impinging flow state can be but not limited to applied on a microprocessor or a microcontroller. In the combination air conditioner humidification process based on the steam and micro-fog impinging flow state, the supply air humidity content is determined according to the humidification parameter of the combination air conditioner, and then the micro-fog adjustment amount and the steam adjustment amount are calculated according to the supply air humidity content and a preset linear regression function, so that signals for controlling the micro-fog and steam valve openings can be generated according to the micro-fog adjustment amount and the steam adjustment amount, so that appropriate micro-fog and steam are generated to collide, the high-grade heat energy of the high-temperature and high-pressure steam is used for the vaporization of the liquid droplets in the micro-fog humidified air flow, and the micro-fog humidification efficiency is improved while the cascade utilization of the high-grade heat energy is realized.

[0063] Specifically, in the combination air conditioner humidification process based on the steam and micro-fog impinging flow state, the humidification parameter of the combination air conditioner set by a user according to personal preference, seasonal change or specific process requirements can be obtained through a touch screen, a key panel or a remote control terminal and the like.

[0064] Further, the saturated water vapor pressure at the supply air temperature can be calculated through the Antoine equation (an empirical formula for estimating the saturated vapor pressure of a pure substance at different temperatures) and the supply air temperature in the humidification parameter, and then the water vapor partial pressure can be obtained through the product of the saturated water vapor pressure and the relative humidity in the humidification parameter, so that the supply air humidity content can be calculated through the following formula:

[0065]

[0066] Wherein, d is the supply air humidity content, the unit is grams of water vapor per kilogram of dry air (g / kg dry air), and is expressed as g / kg da or g / kg for short; φ is the relative humidity in the humidification parameter, the unit is percentage (%), and is usually expressed as "%RH"; P v is the water vapor partial pressure, the unit is Pascal (Pa); P is the total air pressure, the unit is Pascal (Pa), which can be but not limited to measured through a mercury barometer, an aneroid barometer or a digital pressure sensor and the like.

[0067] As an optional embodiment of the present application, the humidification parameter includes the relative humidity and the expected temperature;

[0068] The supply air humidity content is determined according to the humidification parameter, including:

[0069] The isotherm line is determined in the psychrometric chart according to the relative humidity, and the isohumidity line is determined in the psychrometric chart according to the expected temperature;

[0070] Based on the intersection of the isothermal and relative humidity lines, the humidity content of the supply air is determined.

[0071] Specifically, in the process of determining the humidity content of the supply air based on the humidification parameters, the iso-relative humidity line corresponding to the relative humidity in the humidification parameters can be found in the humidification diagram, and the isotherm corresponding to the expected temperature in the humidification parameters can be found in the humidification diagram.

[0072] Then, the humidity content corresponding to the intersection of these two lines in the psychrometric diagram can be found, and this humidity content can be used as the supply air humidity content.

[0073] It's important to note that the three axes in a psychrometric diagram represent temperature, moisture content, and enthalpy, respectively. The temperature and moisture content axes are perpendicular straight lines, while the enthalpy axis is a curved line. The three axes form a concave polygon. Furthermore, the lines of equal relative humidity follow a similar trend to this curve.

[0074] Step 102: Calculate the adjustment amount based on the humidity content of the supply air and a preset linear regression function.

[0075] Specifically, after determining the humidity content of the supply air, the mist flow rate and steam flow rate required to achieve the humidity content of the supply air can be calculated based on the humidity content of the supply air and a preset linear regression function, so that the adjustment amount can be calculated, where the adjustment amount includes the steam adjustment amount and the mist adjustment amount.

[0076] It is understood that the variables of the preset linear regression function include the humidity content of the supply air, the mist flow rate, the carrier gas flow rate, the steam flow rate, the supply air volume, the supply air temperature (i.e., the desired temperature), the relative humidity, and the heat required for vaporization of the mist droplets. The expression of the preset linear regression function may be, but is not limited to, the following:

[0077]

[0078] Among them, Ф is the moisture content of the supply air, in grams of water vapor per kilogram of dry air (g / kg dry air); F1 is the mist flow rate, in kilograms per hour (kg / h); F2 is the carrier gas flow rate, in kilograms per hour (kg / h); F3 is the steam flow rate, in kilograms per hour (kg / h); F4 is the supply air volume, in cubic meters per hour (m³ / h); T is the supply air temperature, in degrees Celsius (℃); φ is the relative humidity, in percentage (%); Q1 is the heat required for the vaporization of the mist droplets, in joules (J).

[0079] It should be noted that A, B, C, D, E, F, G and a, b, c, d, e, f, g are coefficients and exponents in the function, which are constants and can be obtained through multiple experiments and test data. For example, the appropriate coefficients A, B, C, D, E, F, G and exponents a, b, c, d, e, f, g can be calculated by the least square method, the supply air humidity content Φ determined from the psychrometric chart, the supply air flow F4 calculated by the anemometer and the area method, the supply air temperature T and the relative humidity φ set by the user, the heat Q1 required for the evaporation of the micro-mist droplets calculated by the formula, and the micro-mist flow F1, the carrier gas flow F2, and the steam flow F3 measured by various flow meters (such as ultrasonic flow meters, laser scattering flow meters, impact flow meters, vortex flow meters, orifice differential pressure flow meters, turbine flow meters, rotary flow meters, and soap film flow meters).

[0080] After the micro-mist flow and the steam flow required to reach the supply air humidity content are calculated, the difference between the required value and the actual value can be calculated according to the actual micro-mist flow and the actual steam flow measured by the flow meter, which is the adjustment amount.

[0081] As another alternative embodiment of the present application, before the adjustment amount is calculated based on the supply air humidity content and the preset linear regression function, the following steps are further included:

[0082] When it is detected that the steam in the impingement zone of the combined air conditioner is in a superheated state, the current temperature in the impingement zone is obtained; wherein the current temperature is higher than a preset temperature;

[0083] According to the current temperature and a preset first formula, a ratio expression of the steam quality and the micro-mist quality is determined;

[0084] According to the ratio expression, a constraint condition is determined.

[0085] Specifically, before the adjustment amount is calculated based on the supply air humidity content and the preset linear regression function, the state of the steam in the impingement zone of the combined air conditioner can be detected first. When it is detected that the steam in the impingement zone is in a superheated state, that is, the steam is in a high-temperature and high-pressure state, at this time, the temperature of the steam is much higher than its boiling point under standard atmospheric pressure (i.e. much higher than 100℃) and the pressure it bears is significantly higher than the standard atmospheric pressure, so it can be converted into 100℃ steam by releasing heat.

[0086] Then, the temperature of the steam in the superheated state can be obtained by a thermocouple or a platinum resistance temperature detector, etc., that is, the current temperature in the impingement zone, wherein the current temperature is higher than a preset temperature, and the preset temperature is 100℃.

[0087] After obtaining the current temperature, the ratio expression of steam quality to mist quality can be obtained by the preset first formula, wherein the preset first formula includes the following three formulas:

[0088]

[0089] Among them, Q1 is the heat required for the vaporization of micro-mist droplets, in joules (J); Q2 is the heat released when the superheated steam is converted into steam at 100°C, in joules (J); m1 is the mass of the micro-mist, in kilograms (kg); m2 is the mass of the steam, in kilograms (kg); T is the current temperature, in degrees Celsius (°C); ΔH is the latent heat of vaporization of water, in J / kg, and the value here is 2260000 J / kg; Cp is the specific heat capacity of water, in J / (kg·°C), and the value here is 4200 J / (kg·°C).

[0090] According to the above formula, the ratio expression of the mist mass m1 to the steam mass m2 can be obtained. For example, when the current temperature is 600℃, the expression obtained according to the above formula is:

[0091]

[0092] Therefore, the corresponding constraint conditions can be determined based on this expression, such as: the steam mass is 1.2 times the mist mass, the steam mass is greater than 1.1 times the mist mass, etc.

[0093] As another option of the embodiment of the present application, the adjustment amount is calculated based on the humidity content of the supply air and a preset linear regression function, including:

[0094] Calculate the target steam volume and target mist volume based on the humidity content of the supply air and the preset linear regression function;

[0095] Calculating a first steam adjustment amount based on a target steam amount and an actual received steam amount, and calculating a first fine mist adjustment amount based on a target fine mist amount and an actual received fine mist amount;

[0096] When it is detected that the target steam amount and the target fine mist amount meet the constraint conditions, an adjustment amount is determined based on the first steam adjustment amount and the first fine mist adjustment amount;

[0097] When it is detected that the target steam volume and the target mist volume do not meet the constraint conditions, the preset linear regression function is optimized to obtain the objective function;

[0098] Calculate the second steam adjustment amount and the second mist adjustment amount according to the supply air humidity content and the objective function;

[0099] An adjustment amount is determined based on the second steam adjustment amount and the second fine mist adjustment amount.

[0100] Specifically, after determining the constraint conditions, the target steam volume and target mist volume (i.e., the steam flow rate and mist flow rate required to achieve the above-mentioned supply air moisture content) can be calculated based on the supply air moisture content and the preset linear regression function. The calculation method can be referred to the other embodiments mentioned above.

[0101] Next, the difference between the target steam volume and the actual steam volume received and measured by the flowmeter can be calculated to obtain a first steam adjustment amount. Similarly, a first mist adjustment amount can be obtained. Thereafter, a judgment can be made as to whether the target steam volume and the target mist volume satisfy the constraint conditions. When the judgment result is that the constraint conditions are satisfied, the first steam adjustment amount and the first mist adjustment amount can be used as the calculated adjustment amount, but are not limited to it. When the judgment result is that the constraint conditions are not satisfied, the preset linear regression function can be optimized to obtain the objective function. Then, according to the aforementioned method, the second steam adjustment amount and the second mist adjustment amount can be calculated based on the humidity content of the supply air and the objective function, and the second steam adjustment amount and the second mist adjustment amount can be used as the calculated adjustment amount. The optimization method can be, but is not limited to, a gradient descent method, a cross-validation method, etc.

[0102] As another option of the embodiment of the present application, determining the adjustment amount based on the first steam adjustment amount and the first fine mist adjustment amount includes:

[0103] Calculate the carrier gas adjustment amount based on the target mist volume and the preset mixing ratio;

[0104] The first steam adjustment amount, the first fine mist adjustment amount, and the carrier gas adjustment amount are used as adjustment amounts.

[0105] Specifically, in the process of determining the adjustment amount based on the first steam adjustment amount and the first micro-mist adjustment amount, the carrier gas adjustment amount can be first calculated based on the target micro-mist amount and the preset mixing ratio, that is, the target micro-mist amount is divided by the preset mixing ratio, and the quotient obtained is the carrier gas adjustment amount. For example, when the target micro-mist amount is 50kg / h and the preset mixing ratio is 2:7 (that is, two-sevenths), the carrier gas adjustment amount can be obtained as 175kg / h.

[0106] Then, the first steam adjustment amount, the first fine mist adjustment amount, and the carrier gas adjustment amount may be used as the calculated adjustment amounts.

[0107] Step 103: Calculate the valve opening based on the adjustment amount and the preset proportional value, and generate a control signal according to the valve opening.

[0108] Specifically, after the adjustment amount is calculated, since the valve opening degree is related to the adjustment amount (the valve opening degree becomes larger when the adjustment amount is positive, and the valve opening degree becomes smaller when the adjustment amount is negative), a change value of the valve opening degree can be obtained according to the product of the adjustment amount and the preset proportional value, and then the required valve opening degree can be determined according to the change value and the current valve opening degree.

[0109] Further, the corresponding control signal can be generated according to the determined required valve opening degree, so as to control the valve opening degree of the corresponding valve to reach the valve opening degree required to meet the supply air humidity.

[0110] As another alternative of the embodiment of the present application, the preset proportional value includes a preset first proportional value, a preset second proportional value and a preset third proportional value.

[0111] The valve opening degree is calculated based on the adjustment amount and the preset proportional value, and the control signal is generated according to the valve opening degree, including:

[0112] The first valve opening degree is calculated according to the steam adjustment amount and the preset first proportional value.

[0113] The second valve opening degree is calculated according to the micro-mist adjustment amount and the preset second proportional value.

[0114] The third valve opening degree is calculated according to the carrier gas adjustment amount and the preset third proportional value.

[0115] The control signal is generated according to the first valve opening degree, the second valve opening degree and the third valve opening degree.

[0116] Specifically, in the process of calculating the valve opening degree based on the adjustment amount and the preset proportional value, since the preset proportional value includes the preset first proportional value, the preset second proportional value and the preset third proportional value, the first valve opening degree can be calculated according to the steam adjustment amount and the preset first proportional value, the second valve opening degree can be calculated according to the micro-mist adjustment amount and the preset second proportional value, and the third valve opening degree can be calculated according to the calculated carrier gas adjustment amount and the preset third proportional value, wherein the calculation method can refer to the previous embodiment.

[0117] Then, the corresponding three control signals can be generated according to the first valve opening degree, the second valve opening degree and the third valve opening degree, which are respectively used to control the opening degree of the steam valve, the opening degree of the micro-mist valve and the opening degree of the carrier gas valve to keep consistent with the first valve opening degree, the second valve opening degree and the third valve opening degree.

[0118] As another alternative of the embodiment of the present application, the preset proportional value includes a preset first proportional value and a preset second proportional value.

[0119] The valve opening is calculated based on the adjustment amount and the preset proportional value, and a control signal is generated according to the valve opening, including:

[0120] Calculating a first valve opening according to the steam adjustment amount and a preset first proportional value;

[0121] Calculating the second valve opening according to the micro-mist adjustment amount and the preset second proportional value;

[0122] Calculating a third valve opening according to the second valve opening and a preset second formula;

[0123] A control signal is generated according to the first valve opening, the second valve opening, and the third valve opening.

[0124] Specifically, in the process of calculating the valve opening based on the adjustment amount and the preset proportional value, since the preset proportional value includes a preset first proportional value and a preset second proportional value, the first valve opening can be calculated based on the steam adjustment amount and the preset first proportional value, and the second valve opening can be calculated based on the micro-mist adjustment amount and the preset second proportional value.

[0125] Next, the third valve opening can be calculated based on the second valve opening and a preset second formula, wherein the preset second formula represents the numerical relationship between the second valve opening and the third valve opening (such as a linear relationship, a quadratic function relationship, etc.), which can be determined through multiple experiments and test data, such as the numerical relationship that the second valve opening is half of the third valve opening.

[0126] Thereafter, three corresponding control signals can be generated according to the first valve opening, the second valve opening and the third valve opening, which are used to control the opening of the steam valve, the opening of the mist valve and the opening of the carrier gas valve to be consistent with the first valve opening, the second valve opening and the third valve opening.

[0127] See also Figure 2 , Figure 2 A distribution diagram of the impinging flow of steam and mist provided in an embodiment of the present application is shown.

[0128] like Figure 2As shown, the air is heated or cooled according to the temperature requirements of the workshop, and then the treated air is controlled to enter the impact zone according to the humidity requirements of the workshop. At this time, the steam humidification nozzle and the micro-mist humidification nozzle are arranged on both sides of the air duct respectively, and the high-pressure and high-temperature steam and the mixture of micro-mist and carrier gas are ejected from these nozzles in opposite directions, thereby generating a collision and forming an impact flow state. In the impact zone, the impact flow state can produce a strong turbulent zone, which accelerates the heat exchange between the cold and hot fluids, thereby realizing the use of high-enthalpy high-temperature and high-pressure steam to heat and vaporize the low-enthalpy normal-temperature micro-mist, thereby enabling more micro-mist to be vaporized in the air duct, improving the humidification efficiency while also realizing the cascade utilization of energy. After that, the humidified air will be sent into the workshop through the air supply fan.

[0129] See also Figure 3 , Figure 3 A control principle diagram of a combined air conditioning and humidification method based on steam and mist impact flow provided in an embodiment of the present application is shown.

[0130] like Figure 3 As shown in the figure, valve 1 is the carrier gas valve, valve 2 is the fine mist valve, and valve 3 is the steam valve; the impingement flow is formed by the injection of multiple parallel nozzles arranged oppositely; the carrier gas is obtained by exhausting the air after heating or cooling treatment; the fine mist is formed by purified water passing through the atomizer.

[0131] It can be understood that when it is detected that the humidity in the workshop is inconsistent with the desired humidity, the required moisture content (i.e. the above-mentioned supply air humidity content) will be determined based on the desired temperature and humidity (i.e. the above-mentioned humidification parameters) and the enthalpy-humidity diagram, and then the three valve openings can be calculated according to the required moisture content according to the above-mentioned method, thereby controlling the flow of carrier gas, fine mist and high-temperature and high-pressure steam respectively.

[0132] It is worth noting that the micro-mist will form a mixed gas with the carrier gas before injection, so that the micro-mist droplets are injected by the carrier gas. The ratio of the carrier gas flow rate to the micro-mist flow rate can be controlled by valve 1 (also known as the carrier gas valve). For example, if the micro-mist flow rate is X, the carrier gas flow rate Y is calculated according to the set ratio, and then the opening Z of valve 1 is controlled to achieve the output carrier gas flow rate Y, thereby realizing the carrier gas ratio control.

[0133] See also Figure 4 , Figure 4 A structural schematic diagram of a combined air-conditioning and humidifying device based on steam and mist impact flow provided in an embodiment of the present application is shown.

[0134] like Figure 4 As shown, the combined air conditioning and humidification device based on the steam and mist impact flow state may include at least a first processing module 401, a second processing module 402 and a third processing module 403, wherein:

[0135] The first processing module 401 is used to obtain humidification parameters of the combined air conditioner and determine the humidity content of the supply air according to the humidification parameters;

[0136] The second processing module 402 is configured to calculate an adjustment amount based on the humidity content of the supply air and a preset linear regression function; wherein the adjustment amount includes a steam adjustment amount and a mist adjustment amount;

[0137] The third processing module 403 is configured to calculate the valve opening based on the adjustment amount and a preset proportional value, and generate a control signal according to the valve opening.

[0138] In some possible embodiments, the humidification parameters include relative humidity and desired temperature;

[0139] The humidity content of the supply air is determined based on the humidification parameters, including:

[0140] The first processing module 401 is specifically configured to:

[0141] Determine isothermal lines in the psychrometric diagram based on relative humidity, and determine iso-relative humidity lines in the psychrometric diagram based on expected temperature;

[0142] Based on the intersection of the isothermal and relative humidity lines, the humidity content of the supply air is determined.

[0143] In some possible embodiments, before calculating the adjustment amount based on the supply air humidity content and a preset linear regression function, the method further includes:

[0144] The second processing module 402 is specifically configured to:

[0145] When it is detected that the steam in the impact zone of the combined air conditioner is in an overheated state, obtaining the current temperature in the impact zone; wherein the current temperature is higher than a preset temperature;

[0146] According to the current temperature and the preset first formula, the ratio expression of steam quality to mist quality is determined;

[0147] Based on the ratio expression, determine the constraints.

[0148] In some possible embodiments, the adjustment amount is calculated based on the humidity content of the supply air and a preset linear regression function, including:

[0149] The second processing module 402 is specifically configured to:

[0150] Calculate the target steam volume and target mist volume based on the humidity content of the supply air and the preset linear regression function;

[0151] calculate a first steam adjustment amount based on the target steam amount and the received actual steam amount, and calculate a first mist adjustment amount based on the target mist amount and the received actual mist amount;

[0152] determine the adjustment amount based on the first steam adjustment amount and the first mist adjustment amount when it is detected that the target steam amount and the target mist amount satisfy the constraint condition;

[0153] optimize a preset linear regression function to obtain a target function when it is detected that the target steam amount and the target mist amount do not satisfy the constraint condition;

[0154] calculate a second steam adjustment amount and a second mist adjustment amount based on the supply air moisture content and the target function;

[0155] determine the adjustment amount based on the second steam adjustment amount and the second mist adjustment amount.

[0156] In some possible embodiments, determining the adjustment amount based on the first steam adjustment amount and the first mist adjustment amount includes:

[0157] The second processing module 402 is specifically configured to:

[0158] calculate a carrier gas adjustment amount based on the target mist amount and a preset mixing ratio;

[0159] use the first steam adjustment amount, the first mist adjustment amount, and the carrier gas adjustment amount as the adjustment amount.

[0160] In some possible embodiments, the preset proportional values include a preset first proportional value, a preset second proportional value, and a preset third proportional value;

[0161] calculate a valve opening degree based on the adjustment amount and the preset proportional values, and generate a control signal based on the valve opening degree, including:

[0162] The third processing module 403 is specifically configured to:

[0163] calculate a first valve opening degree based on the steam adjustment amount and the preset first proportional value;

[0164] calculate a second valve opening degree based on the mist adjustment amount and the preset second proportional value;

[0165] calculate a third valve opening degree based on the carrier gas adjustment amount and the preset third proportional value;

[0166] generate the control signal based on the first valve opening degree, the second valve opening degree, and the third valve opening degree.

[0167] In some possible embodiments, the preset proportional values include a preset first proportional value and a preset second proportional value;

[0168] The valve opening degree is calculated based on the adjustment amount and a preset proportional value, and a control signal is generated according to the valve opening degree, including:

[0169] The third processing module 403 is specifically configured to:

[0170] The first valve opening degree is calculated according to the steam adjustment amount and a preset first proportional value;

[0171] The second valve opening degree is calculated according to the micro-mist adjustment amount and a preset second proportional value;

[0172] The third valve opening degree is calculated according to the second valve opening degree and a preset second formula;

[0173] The control signal is generated according to the first valve opening degree, the second valve opening degree and the third valve opening degree.

[0174] Please refer to Figure 5 , Figure 5 Another structure of a combined air conditioner humidifying device based on steam and micro-mist impinging flow state is shown.

[0175] As Figure 5 shown, the combined air conditioner humidifying device based on steam and micro-mist impinging flow state 500 can include at least one processor 501, at least one network interface 504, a user interface 503, a memory 505 and at least one communication bus 502.

[0176] The communication bus 502 can be used to realize the connection and communication of the above-mentioned components.

[0177] The user interface 503 can include a key, and the optional user interface can also include a standard wired interface, a wireless interface.

[0178] The network interface 504 can include but is not limited to a Bluetooth module, an NFC module, a Wi-Fi module, etc.

[0179] The processor 501 may include one or more processing cores. The processor 501 utilizes various interfaces and circuits to connect the various components of the combined air conditioning and humidification device 500 based on the steam and mist impact flow pattern. By running or executing instructions, programs, code sets, or instruction sets stored in the memory 505, and invoking data stored in the memory 505, the processor 501 performs various functions and processes data of the combined air conditioning and humidification device 500 based on the steam and mist impact flow pattern. Optionally, the processor 501 may be implemented in at least one hardware form selected from the group consisting of a DSP, an FPGA, and a PLA. The processor 501 may integrate one or a combination of a CPU, a GPU, and a modem. The CPU primarily processes the operating system, user interface, and application programs; the GPU is responsible for rendering and drawing the content to be displayed on the display screen; and the modem is responsible for handling wireless communications. It is understood that the modem may not be integrated into the processor 501 and may be implemented separately via a separate chip.

[0180] Among them, the memory 505 may include RAM and may also include ROM. Optionally, the memory 505 includes a non-transitory computer-readable medium. The memory 505 can be used to store instructions, programs, codes, code sets or instruction sets. The memory 505 may include a program storage area and a data storage area, wherein the program storage area may store instructions for implementing an operating system, instructions for at least one function (such as a touch function, a sound playback function, an image playback function, etc.), instructions for implementing the above-mentioned various method embodiments, etc.; the data storage area may store data involved in the above-mentioned various method embodiments, etc. The memory 505 may also be optionally at least one storage device located away from the aforementioned processor 501. As Figure 5 As shown, the memory 505 as a computer storage medium may include an operating system, a network communication module, a user interface module, and a combined air conditioning and humidification application based on steam and mist impact flow.

[0181] Specifically, the processor 501 may be configured to call a combined air conditioning and humidification application based on steam and mist impact flow stored in the memory 505 and specifically perform the following operations:

[0182] Obtaining humidification parameters of the combined air conditioner and determining the humidity content of the supply air based on the humidification parameters;

[0183] Based on the humidity content of the supply air and a preset linear regression function, an adjustment amount is calculated; wherein the adjustment amount includes a steam adjustment amount and a mist adjustment amount;

[0184] The valve opening is calculated based on the adjustment amount and the preset proportional value, and a control signal is generated according to the valve opening.

[0185] The application further provides a computer readable storage medium, which stores a computer program. The computer program is executed by a processor to implement the steps of the method. The computer readable storage medium can include, but is not limited to, any type of disk, including a floppy disk, an optical disk, a DVD, a CD-ROM, a micro drive, a magneto-optical disk, a ROM, a RAM, an EPROM, an EEPROM, a DRAM, a VRAM, a flash memory device, a magnetic card or an optical card, a nanosystem (including a molecular memory IC), or any type of medium or device suitable for storing instructions and / or data.

[0186] It should be noted that, for the foregoing method embodiments, in order to simply describe, they are all described as a series of action combinations, but those skilled in the art should know that the application is not limited to the order of the actions described, because according to the application, certain steps can be performed in other order or simultaneously. Secondly, those skilled in the art should know that the embodiments described in the specification all belong to preferred embodiments, and the actions and modules involved are not necessarily necessary for the application.

[0187] In the above embodiments, the description of each embodiment is focused on, and the parts not described in detail in a certain embodiment can be referred to the related description of other embodiments.

[0188] In several embodiments provided by the present application, it should be understood that the disclosed device can be implemented in other ways. For example, the device embodiments described above are only schematic. The division of the units is only a logical function division. There can be another division manner in actual implementation, for example, a plurality of units or components can be combined or integrated into another system, or some features can be ignored or not executed. In addition, the coupling or direct coupling or communication connection between the units shown or discussed can be indirect coupling or communication connection through some services interfaces, devices or units, and can be electrical or other forms.

[0189] The units described as separate components may or may not be physically separate, and the components shown as units may or may not be physical units, that is, they can be located in one place, or can be distributed on a plurality of network units. Part or all of the units can be selected according to actual needs to achieve the purpose of the embodiment scheme.

[0190] In addition, each functional unit in each embodiment of the present application can be integrated into a processing unit, or each unit can exist physically independently, or two or more units can be integrated into one unit. The integrated unit can be realized in the form of hardware or in the form of a software functional unit.

[0191] The integrated unit, if implemented in the form of a software function unit and sold or used as an independent product, can be stored in a computer readable memory. Based on such understanding, the technical solutions of the present application essentially or the part that contributes to the prior art or the whole or part of the technical solutions can be embodied in the form of a software product. The computer software product is stored in a memory and includes a plurality of instructions for causing a computer device (which can be a personal computer, a server or a network device, etc.) to execute all or part of the steps of the embodiments of the present application. The aforementioned memory includes: a U disk, a read-only memory (Read-Only Memory, ROM), a random access memory (Random Access Memory, RAM), a mobile hard disk, a magnetic disk or an optical disk, and various media that can store program codes.

[0192] A person of ordinary skill in the art can understand that all or part of the steps in the various methods of the above embodiments can be performed by a program instructing relevant hardware, and the program can be stored in a computer readable memory, which can include a flash disk, a read-only memory (Read-Only Memory, ROM), a random access memory (Random Access Memory, RAM), a magnetic disk or an optical disk, etc.

[0193] The above are only exemplary embodiments of the present disclosure, and cannot limit the scope of the present disclosure. That is, any equivalent changes and modifications made in accordance with the teachings of the present disclosure are still within the scope of the present disclosure. Those skilled in the art will easily think of embodiments of the present disclosure after considering the specification and practicing the disclosure herein. The present application is intended to cover any variations, uses or adaptive changes of the present disclosure, which follow the general principles of the present disclosure and include common knowledge or conventional technical means in the technical field not disclosed by the present disclosure. The specification and examples are only considered as exemplary, and the scope and spirit of the present disclosure are defined by the claims.

Claims

1. A combined air conditioning and humidification method based on steam and mist impingement flow, characterized in that: include: Acquiring humidification parameters of the combined air conditioner and determining the humidity content of the supply air according to the humidification parameters; Based on the moisture content of the supply air and a preset linear regression function, an adjustment amount is calculated; wherein the adjustment amount includes a steam adjustment amount and a mist adjustment amount; Calculating the valve opening based on the adjustment amount and a preset proportional value, and generating a control signal according to the valve opening; Before calculating the adjustment amount based on the supply air humidity content and a preset linear regression function, the method further includes: When it is detected that the steam in the impact zone of the combined air conditioner is in an overheated state, obtaining the current temperature in the impact zone; wherein the current temperature is higher than a preset temperature; Determining an expression for the ratio of steam quality to mist quality based on the current temperature and a preset first formula; Determining a constraint condition according to the ratio expression; The calculation of the adjustment amount based on the supply air humidity content and a preset linear regression function includes: Calculating the target steam volume and the target mist volume according to the moisture content of the supply air and a preset linear regression function; Calculating a first steam adjustment amount based on the target steam amount and the actual steam amount received, and calculating a first fine mist adjustment amount based on the target fine mist amount and the actual fine mist amount received; When it is detected that the target steam amount and the target fine mist amount satisfy the constraint condition, determining the adjustment amount based on the first steam adjustment amount and the first fine mist adjustment amount; When it is detected that the target steam volume and the target mist volume do not satisfy the constraint condition, optimizing the preset linear regression function to obtain a target function; Calculating a second steam adjustment amount and a second fine mist adjustment amount according to the supply air moisture content and the objective function; determining the adjustment amount based on the second steam adjustment amount and the second fine mist adjustment amount; The expression of the preset linear regression function is: Wherein, Ф is the humidity content of the supply air; F1 is the mist flow rate; F2 is the carrier gas flow rate; F3 is the steam flow rate; F4 is the supply air volume; T is the supply air temperature; is the relative humidity; Q1 is the heat required for the vaporization of the mist droplets; A, B, C, D, E, F, G and a, b, c, d, e, f, g are the coefficients and exponents in the function, all of which are constants; The preset first formula includes the following three formulas: Q1=ΔH×m1 Q2=C p ×m2×(T-100) Q1 <Q2 Where Q1 is the heat required for vaporization of mist droplets; Q2 is the heat released when superheated steam is converted into 100°C steam; m1 is the mass of mist; m2 is the mass of steam; T is the current temperature; ΔH is the latent heat of vaporization of water; C p is the specific heat capacity of water.

2. The method according to claim 1, characterized in that The humidification parameters include relative humidity and desired temperature; Determining the humidity content of the supply air according to the humidification parameters includes: Determining isotherms in a psychrometric diagram according to the relative humidity, and determining iso-relative humidity lines in the psychrometric diagram according to the desired temperature; The humidity content of the supply air is determined based on the intersection of the isothermal line and the iso-relative humidity line.

3. The method according to claim 1, characterized in that The determining the adjustment amount based on the first steam adjustment amount and the first fine mist adjustment amount includes: Calculating the carrier gas adjustment amount according to the target fine mist amount and the preset mixing ratio; The first steam adjustment amount, the first fine mist adjustment amount, and the carrier gas adjustment amount are used as the adjustment amounts.

4. The method according to claim 3, characterized in that The preset proportional value includes a preset first proportional value, a preset second proportional value and a preset third proportional value; The calculating the valve opening based on the adjustment amount and a preset proportional value, and generating a control signal according to the valve opening, includes: Calculating a first valve opening according to the steam adjustment amount and the preset first proportional value; Calculating a second valve opening according to the fine mist adjustment amount and the preset second proportional value; Calculating a third valve opening according to the carrier gas adjustment amount and the preset third proportional value; According to the first valve opening, the second valve opening and the third valve opening, three corresponding control signals are generated, which are used to control the opening of the steam valve, the opening of the mist valve and the opening of the carrier gas valve to be consistent with the first valve opening, the second valve opening and the third valve opening.

5. The method according to claim 1, wherein The preset proportional value includes a preset first proportional value and a preset second proportional value; The calculating the valve opening based on the adjustment amount and a preset proportional value, and generating a control signal according to the valve opening, includes: Calculating a first valve opening according to the steam adjustment amount and the preset first proportional value; Calculating a second valve opening according to the fine mist adjustment amount and the preset second proportional value; Calculating a third valve opening according to the second valve opening and a preset second formula; According to the first valve opening, the second valve opening and the third valve opening, three corresponding control signals are generated, which are used to control the opening of the steam valve, the opening of the mist valve and the opening of the carrier gas valve to be consistent with the first valve opening, the second valve opening and the third valve opening.

6. A combined air conditioning and humidification device based on steam and mist impingement flow, characterized in that: include: a first processing module, configured to obtain humidification parameters of the combined air conditioner and determine the humidity content of the supply air according to the humidification parameters; A second processing module is configured to calculate an adjustment amount based on the supply air humidity content and a preset linear regression function; wherein the adjustment amount includes a steam adjustment amount and a mist adjustment amount; a third processing module, configured to calculate a valve opening based on the adjustment amount and a preset proportional value, and generate a control signal according to the valve opening; Before calculating the adjustment amount based on the supply air humidity content and a preset linear regression function, the method further includes: When it is detected that the steam in the impact zone of the combined air conditioner is in an overheated state, obtaining the current temperature in the impact zone; wherein the current temperature is higher than a preset temperature; Determining an expression for the ratio of steam quality to mist quality based on the current temperature and a preset first formula; Determining a constraint condition according to the ratio expression; The calculation of the adjustment amount based on the supply air humidity content and a preset linear regression function includes: Calculating the target steam volume and the target mist volume according to the moisture content of the supply air and a preset linear regression function; Calculating a first steam adjustment amount based on the target steam amount and the actual steam amount received, and calculating a first fine mist adjustment amount based on the target fine mist amount and the actual fine mist amount received; When it is detected that the target steam amount and the target fine mist amount satisfy the constraint condition, determining the adjustment amount based on the first steam adjustment amount and the first fine mist adjustment amount; When it is detected that the target steam volume and the target mist volume do not satisfy the constraint condition, optimizing the preset linear regression function to obtain a target function; Calculating a second steam adjustment amount and a second fine mist adjustment amount according to the supply air moisture content and the objective function; determining the adjustment amount based on the second steam adjustment amount and the second fine mist adjustment amount; The expression of the preset linear regression function is: Wherein, Ф is the humidity content of the supply air; F1 is the mist flow rate; F2 is the carrier gas flow rate; F3 is the steam flow rate; F4 is the supply air volume; T is the supply air temperature; is the relative humidity; Q1 is the heat required for the vaporization of the mist droplets; A, B, C, D, E, F, G and a, b, c, d, e, f, g are the coefficients and exponents in the function, all of which are constants; The preset first formula includes the following three formulas: Q1=ΔH×m1 Q2=C p ×m2×(T-100) Q1 <Q2 Where Q1 is the heat required for vaporization of mist droplets; Q2 is the heat released when superheated steam is converted into 100°C steam; m1 is the mass of mist; m2 is the mass of steam; T is the current temperature; ΔH is the latent heat of vaporization of water; C p is the specific heat capacity of water.

7. A combined air conditioning and humidification device based on steam and mist impact flow, characterized in that: including a processor and a memory; The processor is connected to the memory; The memory is used to store executable program code; The processor runs a program corresponding to the executable program code by reading the executable program code stored in the memory, so as to execute the steps of the method according to any one of claims 1 to 5.

8. A computer-readable storage medium having a computer program stored thereon, characterized in that: The computer-readable storage medium stores instructions, and when the instructions are executed on a computer or a processor, the computer or the processor executes the steps of the method according to any one of claims 1 to 5.

Images