A method and apparatus for determining the economical operating parameters of a rotary dehumidifier.

Abstract

The application provides a method and a device for determining economic operation parameters of a rotary dehumidifier. The method comprises: setting temperature values corresponding to each preset air state point in the rotary dehumidifier; determining a processing heat dissipation amount of the rotary dehumidifier when processing air and a regeneration heat absorption amount of the rotary dehumidifier when regenerating air, and calculating operation parameters of each preset air state point when the processing heat dissipation amount is equal to the regeneration heat absorption amount; calculating an economic ratio of the rotary dehumidifier in a current state based on the operation parameters of each preset air state point, and determining the operation parameters of each preset air state point as the economic operation parameters of the rotary dehumidifier if the economic ratio is within an economic ratio range. The method and the device can determine the economic operation parameters of the rotary dehumidifier by calculation, thereby saving a large amount of test time required when the rotary dehumidifier is manufactured, and improving the operation efficiency of the rotary dehumidifier.

Description

Technical Field

[0001] This application relates to the field of dehumidifier technology, and in particular to a method and apparatus for determining the economic operating parameters of a rotary dehumidifier. Background Technology

[0002] A rotary dehumidifier operates primarily through two processes: dehumidification and regeneration. During operation, the dehumidifying rotor rotates slowly. Air requiring dehumidification is drawn in through the rotor's windward side. As the air passes through the rotor, the moisture in the air is absorbed or adsorbed by the desiccant within the rotor. The dehumidified, dry air is then processed by a fan and further processed by other air handling sections before being delivered to the room or space requiring dehumidification. Simultaneously, another portion of the air is first heated by an air heater before passing through the rotor's windward side to remove the moisture absorbed by the rotor from the treated air.

[0003] During this process, as the air state point changes, the amount of heat transfer during the dehumidification and regeneration processes also changes. The amount of heat transfer represents the load of the rotary dehumidifier.

[0004] Currently, to ensure that rotary dehumidifiers operate at their most economical level, their operating parameters are set based on engineering experience or determined through continuous experimental testing, which wastes a significant amount of manpower and time. Therefore, quickly determining the economical operating parameters for rotary dehumidifiers has become a crucial technical challenge. Summary of the Invention

[0005] In view of this, the purpose of this application is to provide a method and apparatus for determining the economic operating parameters of a rotary dehumidifier. The economic operating parameters of the rotary dehumidifier can be determined by calculation, thereby saving a lot of testing time required when the rotary dehumidifier leaves the factory, and improving the operating efficiency of the rotary dehumidifier.

[0006] In a first aspect, embodiments of this application provide a method for determining the economic operating parameters of a rotary dehumidifier, the method comprising:

[0007] Set the temperature value corresponding to each preset air state point in the rotary dehumidifier; wherein, the preset air state point is an air state point in the rotary dehumidifier with variable parameters;

[0008] Determine the heat dissipation emitted by the rotary dehumidifier when processing air and the heat absorption absorbed during air regeneration, and calculate the operating parameters for each preset air state point when the heat dissipation is equal to the heat absorption.

[0009] The economic ratio of the rotary dehumidifier under the current state is calculated based on the operating parameters of each preset air state point. If the economic ratio is within the economic ratio range, the operating parameters of each preset air state point are determined as the economic operating parameters of the rotary dehumidifier.

[0010] Furthermore, when the rotary dehumidifier is a single-rotor dehumidifier, the multiple preset air state points include a processing air inlet state point, a processing air outlet state point, a regeneration air inlet state point, and a regeneration air outlet state point.

[0011] Furthermore, the operating parameters include water vapor partial pressure and saturated vapor pressure. The calculation of the operating parameters for each preset air state point when the heat dissipation from the treatment is equal to the heat absorption from the regeneration includes:

[0012] The heat dissipation during processing is set to be equal to the heat absorption during regeneration. The equations for calculating the heat dissipation during processing and the equations for calculating the heat absorption during regeneration are combined to establish an energy conservation equation.

[0013] Substitute the temperature value corresponding to each preset air state point into the energy conservation equation to calculate the moisture content and enthalpy value corresponding to each preset air state point.

[0014] For each preset air state point, the saturated vapor pressure of the preset air state point is calculated based on the temperature value of the preset air state point, and the water vapor partial pressure of the preset air state point is calculated based on the saturated vapor pressure, temperature value, moisture content and enthalpy value of the preset air state point.

[0015] Furthermore, the calculation of the water vapor partial pressure at the preset air state point based on the saturated vapor pressure, temperature, moisture content, and enthalpy of the preset air state point includes:

[0016] The relative humidity is calculated based on the temperature, moisture content, and enthalpy of the preset air state point.

[0017] The product of the relative humidity and the saturated vapor pressure at the preset air state point is taken as the water vapor partial pressure at the preset air state point.

[0018] Furthermore, the calculation of the economic ratio of the rotary dehumidifier under the current state based on the operating parameters of each preset air state point includes:

[0019] The adsorption coefficient is calculated based on the water vapor partial pressure at the inlet air treatment point, the saturated vapor pressure at the inlet air treatment point, the water vapor partial pressure at the outlet air treatment point, and the saturated vapor pressure at the outlet air treatment point.

[0020] The regeneration coefficient is calculated based on the water vapor partial pressure at the regeneration air inlet point, the saturated vapor pressure at the regeneration air inlet point, the water vapor partial pressure at the regeneration air outlet point, and the saturated vapor pressure at the regeneration air outlet point.

[0021] The ratio between the regeneration coefficient and the adsorption coefficient is determined as the economic ratio of the rotary dehumidifier.

[0022] Furthermore, after determining the operating parameters of each preset air state point as the economic operating parameters of the rotary dehumidifier, the determination method further includes:

[0023] When the single-rotor dehumidifier is running, the surface cooler controls the processing air inlet state point to reach the corresponding temperature value, and the regeneration heating controller controls the processing air outlet state point, the regeneration air inlet state point, and the regeneration air outlet state point to reach the corresponding temperature value, so that each preset air state point operates based on the operating parameters.

[0024] Secondly, embodiments of this application also provide a device for determining the economic operating parameters of a rotary dehumidifier, the device comprising:

[0025] The temperature setting module is used to set the temperature value corresponding to each preset air state point in the rotary dehumidifier; wherein, the preset air state point is an air state point in the rotary dehumidifier with variable parameters;

[0026] The operating parameter calculation module is used to determine the heat dissipation emitted by the rotary dehumidifier when processing air and the heat absorption absorbed during air regeneration, and to calculate the operating parameters for each preset air state point when the heat dissipation and the heat absorption are equal.

[0027] The economic operating parameter determination module is used to calculate the economic ratio of the rotary dehumidifier under the current state based on the operating parameters of each preset air state point. If the economic ratio is within the economic ratio range, the operating parameters of each preset air state point are determined as the economic operating parameters of the rotary dehumidifier.

[0028] Furthermore, when the rotary dehumidifier is a single-rotor dehumidifier, the multiple preset air state points include a processing air inlet state point, a processing air outlet state point, a regeneration air inlet state point, and a regeneration air outlet state point.

[0029] Thirdly, embodiments of this application also provide an electronic device, including: a processor, a memory, and a bus. The memory stores machine-readable instructions executable by the processor. When the electronic device is running, the processor communicates with the memory via the bus. When the machine-readable instructions are executed by the processor, the steps of the method for determining the economic operating parameters of a rotary dehumidifier as described above are performed.

[0030] Fourthly, embodiments of this application also provide a computer-readable storage medium storing a computer program, which, when executed by a processor, performs the steps of the method for determining the economic operating parameters of a rotary dehumidifier as described above.

[0031] This application provides a method and apparatus for determining the economic operating parameters of a rotary dehumidifier. First, the temperature value corresponding to each preset air state point in the rotary dehumidifier is set. These preset air state points are air state points with variable parameters within the rotary dehumidifier. Then, the heat dissipation during air processing and the heat absorption during air regeneration are determined, and the operating parameters for each preset air state point are calculated when the heat dissipation and heat absorption are equal. Finally, based on the operating parameters of each preset air state point, the economic ratio of the rotary dehumidifier under the current state is calculated. If the economic ratio is within a certain range, the operating parameters of each preset air state point are determined as the economic operating parameters of the rotary dehumidifier. This method allows for the determination of the economic operating parameters of the rotary dehumidifier through calculation, saving significant testing time required at the factory and improving the operating efficiency of the rotary dehumidifier.

[0032] To make the above-mentioned objectives, features and advantages of this application more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0033] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0034] Figure 1 A flowchart illustrating a method for determining economic operating parameters of a rotary dehumidifier provided in an embodiment of this application;

[0035] Figure 2 A schematic diagram illustrating the working process of a single-rotor dehumidifier provided in an embodiment of this application;

[0036] Figure 3 A schematic diagram of a device for determining the economic operating parameters of a rotary dehumidifier provided in an embodiment of this application;

[0037] Figure 4 This is a schematic diagram of the structure of an electronic device provided in an embodiment of this application. Detailed Implementation

[0038] 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, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely represents selected embodiments of this application. Based on the embodiments of this application, every other embodiment obtained by those skilled in the art without inventive effort falls within the scope of protection of this application.

[0039] First, the applicable application scenarios of this application will be introduced. This application can be applied to the field of dehumidifier technology.

[0040] A rotary dehumidifier operates primarily through two processes: dehumidification and regeneration. During operation, the dehumidifying rotor rotates slowly. Air requiring dehumidification is drawn in through the rotor's windward side. As the air passes through the rotor, the moisture in the air is absorbed or adsorbed by the desiccant within the rotor. The dehumidified, dry air is then processed by a fan and further processed by other air handling sections before being delivered to the room or space requiring dehumidification. Simultaneously, another portion of the air is first heated by an air heater before passing through the rotor's windward side to remove the moisture absorbed by the rotor from the treated air.

[0041] During this process, as the air state point changes, the amount of heat transfer during the dehumidification and regeneration processes also changes. The amount of heat transfer represents the load of the rotary dehumidifier.

[0042] Research has revealed that currently, to ensure rotary dehumidifiers operate at their most economical level, their operating parameters are set based on engineering experience or determined through continuous experimental testing, which wastes significant manpower and time. Therefore, quickly determining the economical operating parameters for rotary dehumidifiers has become a crucial technical challenge.

[0043] Based on this, this application provides a method for determining the economic operating parameters of a rotary dehumidifier. The economic operating parameters of the rotary dehumidifier can be determined by calculation, thereby saving a lot of testing time required when the rotary dehumidifier leaves the factory, and improving the operating efficiency of the rotary dehumidifier.

[0044] Please see Figure 1 , Figure 1 This is a flowchart illustrating a method for determining the economical operating parameters of a rotary dehumidifier, as provided in an embodiment of this application. Figure 1 As shown in the embodiments of this application, the determination method includes:

[0045] S101 sets the temperature value corresponding to each preset air state point in the rotary dehumidifier.

[0046] Here, the preset air state point is the air state point with variable parameters in the rotary dehumidifier.

[0047] In specific implementation of step S101, for each preset air state point in the rotary dehumidifier, a temperature value corresponding to that preset air state point is set.

[0048] This application describes an example using a single-rotor dehumidifier. Please refer to [link / reference]. Figure 2 , Figure 2 This is a schematic diagram illustrating the working process of a single-rotor dehumidifier provided in an embodiment of this application. The definitions of the four processes occurring during the operation of the rotary dehumidifier—dehumidification cooling, dehumidification heating, heating, and moisture absorption cooling—are as follows: Figure 2 As shown, point A represents the fresh air status point, point B represents the return air status point, point C represents the mixed air status point, point D represents the processed air intake status point, point E represents the processed air outlet status point, point F represents the supply air status point, point G represents the regenerated air intake status point, and point H represents the regenerated air outlet status point.

[0049] Specifically, air state points with fixed parameters are known state parameter points, while air state points with variable parameters are unknown state parameter points. Continuing with the above embodiment of a single-rotor dehumidifier, points A, B, C, and F are known state parameter points; points D, E, G, and H are unknown state parameter points. Therefore, according to the embodiment provided in this application, when the dehumidifier is a single-rotor dehumidifier, the multiple preset air state points include a processing air inlet state point, a processing air outlet state point, a regeneration air inlet state point, and a regeneration air outlet state point.

[0050] S102, determine the heat dissipation emitted by the rotary dehumidifier when processing air and the heat absorption absorbed when regenerating air, and calculate the operating parameters for each preset air state point when the heat dissipation is equal to the heat absorption.

[0051] Here, we first explain the meaning of the economic ratio. Economic ratio (η): During dehumidification and regeneration in a rotary dehumidifier, energy is transferred. During dehumidification, air condenses and dissipates heat; this heat dissipation is denoted as Q. s During the regeneration process, water evaporates and absorbs heat; this heat absorption is denoted as Q. x When Q s =Q x The operating parameters at that time are the economic operating parameters. Therefore, in the above step S102, in specific implementation, the heat dissipation emitted by the rotary dehumidifier when processing air and the heat absorption absorbed during air regeneration are first determined, and the operating parameters of each preset air state point when the heat dissipation and heat absorption are equal are calculated, thereby determining the economic operating parameters.

[0052] Specifically, the operating parameters include the water vapor partial pressure and saturated vapor pressure at the preset air state point.

[0053] Regarding step S102 above, the calculation of the operating parameters for each preset air state point when the heat dissipation during processing is equal to the heat absorption during regeneration includes:

[0054] Step 1021: Set the heat dissipation during processing to be equal to the heat absorption during regeneration. Combine the equations for calculating the heat dissipation during processing with the equations for calculating the heat absorption during regeneration to establish an energy conservation equation.

[0055] Regarding step 1021 above, in specific implementation, the heat dissipation amount Q is first set. s With regeneration heat absorption Q x The equations for calculating the heat dissipation of the treatment are then combined with the equations for calculating the heat absorption of the regeneration to establish an energy conservation equation.

[0056] Specifically, according to the definition of the economic ratio, the heat dissipated by the treated air is equal to the heat absorbed by the regenerated air, that is: Q s =Q x .

[0057] Q s =q md ×h d -q me ×h e

[0058] In the above formula, q md q represents the mass flow rate (kg / s) at the inlet air condition point. me The mass flow rate (kg / s) at the outlet air condition point is expressed in h. d The specific enthalpy (kJ / kg) of the inlet air condition point is expressed in h. eThis represents the specific enthalpy (kJ / kg) at the outlet air condition point.

[0059] Q x =q mh ×h h -q mg ×h g

[0060] In the above formula, q mg q represents the mass flow rate (kg / s) at the regeneration inlet air state point. mh The mass flow rate (kg / s) at the regeneration outlet air condition point is expressed in h. g The specific enthalpy (kJ / kg) representing the regeneration air inlet state point, h h Specific enthalpy (kJ / kg) represents the regeneration outlet air state point.

[0061]

[0062] In the above formula, q v ρ represents the volumetric flow rate (m3 / h), and ρ represents the density of moist air (kg / m3).

[0063]

[0064] In the above formula, C represents the specific heat capacity of air (kJ / (kg·K)) and W represents the moisture content (g / kg).

[0065]

[0066] In the above formula, T represents the dry-bulb temperature (°C).

[0067] Solving the above equations simultaneously yields the energy conservation equation, which is expressed by the following formula:

[0068]

[0069] Step 1022: Substitute the temperature value corresponding to each preset air state point into the energy conservation equation to calculate the moisture content and enthalpy value corresponding to each preset air state point.

[0070] Here, during the operation of the rotary dehumidifier, the main changes are in temperature and relative humidity, i.e., changes in moisture content and enthalpy. We will analyze the enthalpy and moisture content at unknown state parameter points. ① Point D is the air state point after the processed air has passed through the surface cooler. The air flows through the cooler metal pipes of the surface cooler for heat exchange; this process is called dehumidification cooling. During this process, the enthalpy h of the air... d and moisture content W dAll will decrease. ② Point E is the air state point after the processed air has passed through the rotary dehumidifier. When low-temperature air flows through the rotor, the porous adsorption material on the rotor will adsorb most of the moisture in the air; this process is called dehumidification heating. During this process, the enthalpy h of the air... e Increase, moisture content W e Reduce. ③ Point G is the air state point after the regenerated air has been heated. The regenerated fan draws a portion of the air volume from point E for heating; this process is called heating. During this process, the enthalpy h of the air... g Increase, moisture content W g Unchanged. ④ Point H is the air state point after the regenerated air passes through the rotary dehumidifier. The heated, high-temperature regenerated air passes through the porous adsorption material on the rotor, evaporating and absorbing the moisture within it; this process is called moisture absorption cooling. During this process, the enthalpy h of the air... h Reduce, moisture content W h Increase.

[0071] In specific implementation of step 1022, the temperature value corresponding to each preset air state point is substituted into the energy conservation equation established in step 1021 to calculate the moisture content and enthalpy value corresponding to each preset air state point.

[0072] Step 1023: For each preset air state point, calculate the saturated vapor pressure of the preset air state point based on the temperature value of the preset air state point, and calculate the water vapor partial pressure of the preset air state point based on the saturated vapor pressure, temperature value, moisture content and enthalpy value of the preset air state point.

[0073] Regarding step 1023 above, in specific implementation, for each preset air state point, the saturated vapor pressure of the preset air state point is calculated based on the temperature value of the preset air state point, and then the water vapor partial pressure of the preset air state point is calculated based on the saturated vapor pressure, temperature value, moisture content and enthalpy value of the preset air state point.

[0074] Specifically, the saturated vapor pressure at the preset air state point is calculated using the following formula:

[0075]

[0076] Among them, P ws The values ​​represent saturated vapor pressure, T represents temperature, C1 = -5.8002006 × 10³, C2 = 1.3914993, C3 = -4.8640239 × 10⁻², C4 = 4.1764768 × 10⁻⁵, C5 = -1.4452093 × 10⁻⁸, and C6 = -6.5459673.

[0077] Specifically, regarding step 1023 above, the water vapor partial pressure at the preset air state point is calculated through the following steps:

[0078] The relative humidity is calculated based on the temperature, moisture content, and enthalpy of the preset air state point; the product of the relative humidity and the saturated vapor pressure of the preset air state point is taken as the water vapor partial pressure of the preset air state point.

[0079] In the specific implementation of the above two steps, the relative humidity is first calculated based on the temperature, moisture content, and enthalpy of the preset air state point. Then, the relative humidity is multiplied by the saturated vapor pressure of the preset air state point to obtain the water vapor partial pressure of the preset air state point.

[0080] Specifically, the partial pressure of water vapor is calculated using the following formula:

[0081]

[0082] Among them, P w Indicates the partial pressure of water vapor. This indicates relative humidity.

[0083] S103, calculate the economic ratio of the rotary dehumidifier under the current state based on the operating parameters of each preset air state point. If the economic ratio is within the economic ratio range, then determine the operating parameters of each preset air state point as the economic operating parameters of the rotary dehumidifier.

[0084] Here, the economic ratio range can be set between 2.5 and 4. If the economic ratio calculated based on the operating parameters is within the economic ratio range, then the operating parameters are considered to be economic operating parameters.

[0085] Regarding step S103 above, in specific implementation, the economic ratio of the rotary dehumidifier under the current state is calculated based on the operating parameters of each preset air state point. It is then determined whether the calculated economic ratio falls within the economic ratio range. If the economic ratio is within the range, the operating parameters of each preset air state point are determined as the economic operating parameters of the rotary dehumidifier. In this way, the economic operating parameters of the rotary dehumidifier can be determined through calculation, thereby saving a significant amount of testing time required when the rotary dehumidifier leaves the factory. When the rotary dehumidifier operates under the economic operating parameters, it is in an economical operating condition with minimal load and maximum economic efficiency, thus improving the operating efficiency of the rotary dehumidifier.

[0086] Specifically, regarding step S103 above, calculating the economic ratio of the rotary dehumidifier under the current state based on the operating parameters of each preset air state point includes:

[0087] Step 1031: Calculate the adsorption coefficient based on the water vapor partial pressure at the processing air inlet point, the saturated vapor pressure at the processing air inlet point, the water vapor partial pressure at the processing air outlet point, and the saturated vapor pressure at the processing air outlet point.

[0088] Here, the adsorption coefficient ∑ represents the amount of air dehumidified by the rotary dehumidifier. The larger the adsorption coefficient, the greater the dehumidification capacity.

[0089] Regarding step 1031 above, in specific implementation, the adsorption coefficient is calculated based on the water vapor partial pressure at the inlet air treatment point, the saturated vapor pressure at the inlet air treatment point, the water vapor partial pressure at the outlet air treatment point, and the saturated vapor pressure at the outlet air treatment point. Specifically, the adsorption coefficient ∑ is calculated using the following formula:

[0090]

[0091] Where, p w(D) The p represents the partial pressure of water vapor at the inlet air condition point (Pa). ws(D) p represents the saturated vapor pressure (Pa) at the inlet air condition point. w(E) p represents the partial pressure of water vapor at the outlet air condition point (Pa). ws ( E) This indicates the saturated vapor pressure (Pa) at the outlet air condition point.

[0092] Step 1032: Calculate the regeneration coefficient based on the water vapor partial pressure at the regeneration air inlet point, the saturated vapor pressure at the regeneration air inlet point, the water vapor partial pressure at the regeneration air outlet point, and the saturated vapor pressure at the regeneration air outlet point.

[0093] Here, the regeneration coefficient β represents the amount of moisture absorbed by the air during the regeneration process of the dehumidifier. The larger the regeneration coefficient, the greater the amount of moisture absorbed.

[0094] Regarding step 1032 above, in specific implementation, the regeneration coefficient is calculated based on the water vapor partial pressure at the regeneration inlet air state point, the saturated vapor pressure at the regeneration inlet air state point, the water vapor partial pressure at the regeneration outlet air state point, and the saturated vapor pressure at the regeneration outlet air state point. Specifically, the regeneration coefficient β is calculated using the following formula:

[0095]

[0096] Where, p w(G) p represents the partial pressure of water vapor at the regeneration air inlet state point (Pa). ws(G) p represents the saturated vapor pressure (Pa) at the regeneration inlet air condition point. w(H) p represents the partial pressure of water vapor at the regeneration outlet air state point (Pa).ws(H) This represents the saturated vapor pressure (Pa) at the regeneration outlet air condition point.

[0097] Step 1033: The ratio between the regeneration coefficient and the adsorption coefficient is determined as the economic ratio of the rotary dehumidifier.

[0098] The ratio between the regeneration coefficient and the adsorption coefficient under the operating parameters calculated in step S102 is the economic ratio. Regarding step 1033 above, in specific implementation, after the regeneration coefficient and adsorption coefficient are calculated, the ratio between the regeneration coefficient and the adsorption coefficient is determined as the economic ratio of the rotary dehumidifier.

[0099] Thus, when the economic ratio calculated in step 1033 is within the economic ratio range, the operating parameters calculated in step S102 are used as the economic operating parameters of the rotary dehumidifier. If the economic ratio calculated in step 1033 is not within the economic ratio range, the process returns to step S103, resets the temperature value of each preset air state point, and recalculates the operating parameters until the obtained economic ratio is within the economic ratio range.

[0100] As an optional embodiment, after determining the operating parameters of each preset air state point as the economic operating parameters of the rotary dehumidifier in step S103, the determination method further includes:

[0101] When the single-rotor dehumidifier is running, the surface cooler controls the processing air inlet state point to reach the corresponding temperature value, and the regeneration heating controller controls the processing air outlet state point, the regeneration air inlet state point, and the regeneration air outlet state point to reach the corresponding temperature value, so that each preset air state point operates based on the operating parameters.

[0102] Regarding the above steps, in specific implementation, when the single-rotor dehumidifier is running, the inlet air state point D is controlled by the surface cooler to reach the temperature value set in step S101, and the outlet air state points E, F, and H are controlled by the regeneration heating controller to reach the respective temperature values ​​set in step S101, so that each preset air state point operates based on the operating parameters. In this way, the rotary dehumidifier operates under these operating parameters in an economical condition, with minimal load and maximum economic efficiency, thus improving the operating efficiency of the rotary dehumidifier.

[0103] The method for determining the economic operating parameters of a rotary dehumidifier provided in this application embodiment first sets the temperature value corresponding to each preset air state point in the rotary dehumidifier; wherein, the preset air state point is an air state point in the rotary dehumidifier with variable parameters; then, it determines the heat dissipation emitted by the rotary dehumidifier when processing air and the heat absorbed during regeneration when regenerating air, and calculates the operating parameters of each preset air state point when the heat dissipation and the heat absorbed are equal; finally, it calculates the economic ratio of the rotary dehumidifier under the current state based on the operating parameters of each preset air state point. If the economic ratio is within the economic ratio range, the operating parameters of each preset air state point are determined as the economic operating parameters of the rotary dehumidifier. In this way, the economic operating parameters of the rotary dehumidifier can be determined by calculation, thereby saving a lot of testing time required for the rotary dehumidifier to leave the factory, and improving the operating efficiency of the rotary dehumidifier.

[0104] Please see Figure 3 , Figure 3 This is a schematic diagram of a device for determining the economic operating parameters of a rotary dehumidifier, provided in an embodiment of this application. Figure 3 As shown, the determining device 300 includes:

[0105] Temperature setting module 301 is used to set the temperature value corresponding to each preset air state point in the rotary dehumidifier; wherein, the preset air state point is an air state point in the rotary dehumidifier with variable parameters;

[0106] The operating parameter calculation module 302 is used to determine the heat dissipation emitted by the rotary dehumidifier when processing air and the heat absorption absorbed during air regeneration, and to calculate the operating parameters for each preset air state point when the heat dissipation is equal to the heat absorption.

[0107] The economic operating parameter determination module 303 is used to calculate the economic ratio of the rotary dehumidifier under the current state based on the operating parameters of each preset air state point. If the economic ratio is within the economic ratio range, the operating parameters of each preset air state point are determined as the economic operating parameters of the rotary dehumidifier.

[0108] Furthermore, when the rotary dehumidifier is a single-rotor dehumidifier, the multiple preset air state points include a processing air inlet state point, a processing air outlet state point, a regeneration air inlet state point, and a regeneration air outlet state point.

[0109] Furthermore, the operating parameters include water vapor partial pressure and saturated vapor pressure. When calculating the operating parameters for each preset air state point when the heat dissipation during processing is equal to the heat absorption during regeneration, the operating parameter calculation module 302 is also used for:

[0110] The heat dissipation during processing is set to be equal to the heat absorption during regeneration. The equations for calculating the heat dissipation during processing and the equations for calculating the heat absorption during regeneration are combined to establish an energy conservation equation.

[0111] Substitute the temperature value corresponding to each preset air state point into the energy conservation equation to calculate the moisture content and enthalpy value corresponding to each preset air state point.

[0112] For each preset air state point, the saturated vapor pressure of the preset air state point is calculated based on the temperature value of the preset air state point, and the water vapor partial pressure of the preset air state point is calculated based on the saturated vapor pressure, temperature value, moisture content and enthalpy value of the preset air state point.

[0113] Furthermore, when the operating parameter calculation module 302 calculates the water vapor partial pressure at the preset air state point based on the saturated vapor pressure, temperature, moisture content, and enthalpy, the operating parameter calculation module 302 is also used for:

[0114] The relative humidity is calculated based on the temperature, moisture content, and enthalpy of the preset air state point.

[0115] The product of the relative humidity and the saturated vapor pressure at the preset air state point is taken as the water vapor partial pressure at the preset air state point.

[0116] Furthermore, when the economic operating parameter determination module 303 calculates the economic ratio of the rotary dehumidifier under the current state based on the operating parameters at each preset air state point, the economic operating parameter determination module 303 is also used for:

[0117] The adsorption coefficient is calculated based on the water vapor partial pressure at the inlet air treatment point, the saturated vapor pressure at the inlet air treatment point, the water vapor partial pressure at the outlet air treatment point, and the saturated vapor pressure at the outlet air treatment point.

[0118] The regeneration coefficient is calculated based on the water vapor partial pressure at the regeneration air inlet point, the saturated vapor pressure at the regeneration air inlet point, the water vapor partial pressure at the regeneration air outlet point, and the saturated vapor pressure at the regeneration air outlet point.

[0119] The ratio between the regeneration coefficient and the adsorption coefficient is determined as the economic ratio of the rotary dehumidifier.

[0120] Furthermore, the determining device 300 also includes a control module, which, after determining the operating parameters of each preset air state point as the economic operating parameters of the rotary dehumidifier, is used to:

[0121] When the single-rotor dehumidifier is running, the surface cooler controls the processing air inlet state point to reach the corresponding temperature value, and the regeneration heating controller controls the processing air outlet state point, the regeneration air inlet state point, and the regeneration air outlet state point to reach the corresponding temperature value, so that each preset air state point operates based on the operating parameters.

[0122] Please see Figure 4 , Figure 4 This is a schematic diagram of the structure of an electronic device provided in an embodiment of this application. Figure 4 As shown, the electronic device 400 includes a processor 410, a memory 420, and a bus 430.

[0123] The memory 420 stores machine-readable instructions executable by the processor 410. When the electronic device 400 is running, the processor 410 communicates with the memory 420 via the bus 430. When the machine-readable instructions are executed by the processor 410, they can perform the operations described above. Figure 1 The steps of the method for determining the economic operating parameters of the rotary dehumidifier in the method embodiment shown are described in detail in the method embodiment, and will not be repeated here.

[0124] This application also provides a computer-readable storage medium storing a computer program, which, when executed by a processor, can perform the above-described actions. Figure 1 The steps of the method for determining the economic operating parameters of the rotary dehumidifier in the method embodiment shown are described in detail in the method embodiment, and will not be repeated here.

[0125] Those skilled in the art will understand that, for the sake of convenience and brevity, the specific working processes of the systems, devices, and units described above can be referred to the corresponding processes in the foregoing method embodiments, and will not be repeated here.

[0126] In the several embodiments provided in this application, it should be understood that the disclosed systems, apparatuses, and methods can be implemented in other ways. The apparatus embodiments described above are merely illustrative. For example, the division of units is only a logical functional division, and in actual implementation, there may be other division methods. Furthermore, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Additionally, the shown or discussed mutual couplings, direct couplings, or communication connections may be through some communication interfaces; indirect couplings or communication connections between devices or units may be electrical, mechanical, or other forms.

[0127] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0128] In addition, the functional units in the various embodiments of this application can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit.

[0129] If the aforementioned functions are implemented as software functional units and sold or used as independent products, they can be stored in a processor-executable, non-volatile, computer-readable storage medium. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, or a portion of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of this application. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks.

[0130] Finally, it should be noted that the above-described embodiments are merely specific implementations of this application, used to illustrate the technical solutions of this application, and not to limit them. The scope of protection of this application is not limited thereto. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that any person skilled in the art can still modify or easily conceive of changes to the technical solutions described in the foregoing embodiments, or make equivalent substitutions for some of the technical features, within the scope of the technology disclosed in this application. Such modifications, changes, or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application, and should all be covered within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A method for determining an economic operation parameter of a rotary dehumidifier, characterized in that, The determination method comprises: Respectively set temperature values corresponding to each preset air state point in a rotary dehumidifier; wherein, the preset air state point is an air state point with variable parameters in the rotary dehumidifier; Determine a heat dissipation amount of the rotary dehumidifier when processing air and a heat absorption amount of the rotary dehumidifier when regenerating air, and calculate operating parameters of each preset air state point when the heat dissipation amount is equal to the heat absorption amount; Calculate an economic ratio of the rotary dehumidifier under a current state based on the operating parameters of each preset air state point, and if the economic ratio is within an economic ratio range, determine the operating parameters of each preset air state point as economic operating parameters of the rotary dehumidifier; When the rotary dehumidifier is a single-rotary dehumidifier, the plurality of preset air state points comprise a processing inlet air state point, a processing outlet air state point, a regeneration inlet air state point and a regeneration outlet air state point; The operating parameters comprise water vapor partial pressure and saturated vapor pressure, and the calculation of the operating parameters of each preset air state point when the heat dissipation amount is equal to the heat absorption amount comprises: Set the heat dissipation amount equal to the heat absorption amount, and simultaneously solve an equation for calculating the heat dissipation amount and an equation for calculating the heat absorption amount to establish an energy conservation equation; Substitute the temperature values corresponding to each preset air state point into the energy conservation equation to calculate the humidity content and enthalpy value corresponding to each preset air state point; For each preset air state point, calculate the saturated vapor pressure of the preset air state point based on the temperature value of the preset air state point, and calculate the water vapor partial pressure of the preset air state point based on the saturated vapor pressure, the temperature value, the humidity content and the enthalpy value of the preset air state point; The calculation of the economic ratio of the rotary dehumidifier under the current state based on the operating parameters of each preset air state point comprises: Calculate an adsorption coefficient based on the water vapor partial pressure of the processing inlet air state point, the saturated vapor pressure of the processing inlet air state point, the water vapor partial pressure of the processing outlet air state point and the saturated vapor pressure of the processing outlet air state point; Calculate a regeneration coefficient based on the water vapor partial pressure of the regeneration inlet air state point, the saturated vapor pressure of the regeneration inlet air state point, the water vapor partial pressure of the regeneration outlet air state point and the saturated vapor pressure of the regeneration outlet air state point; Determine the economic ratio of the rotary dehumidifier as a ratio between the regeneration coefficient and the adsorption coefficient.

2. The determination method according to claim 1, characterized in that, The calculation of the water vapor partial pressure of the preset air state point based on the saturated vapor pressure, the temperature value, the humidity content and the enthalpy value of the preset air state point comprises: Calculate relative humidity based on the temperature value, the humidity content and the enthalpy value of the preset air state point; Take the product of the relative humidity and the saturated vapor pressure of the preset air state point as the water vapor partial pressure of the preset air state point.

3. The determination method according to claim 1, characterized in that, After the operating parameters of each preset air state point are determined as the economic operating parameters of the rotary dehumidifier, the determination method further comprises: When the single-rotor dehumidifier is running, the table cooler controls the process air inlet state point to reach a corresponding temperature value, and the regeneration heating controller controls the process air outlet state point, the regeneration air inlet state point and the regeneration air outlet state point to reach corresponding temperature values respectively, so that each preset air state point is run based on the running parameters.

4. A device for determining an economic operation parameter of a rotary dehumidifier, characterized by The determining device comprises: a temperature value setting module, configured to set a temperature value corresponding to each preset air state point in the rotor dehumidifier respectively; wherein the preset air state point is an air state point with variable parameters in the rotor dehumidifier; a running parameter calculation module, configured to determine a process heat dissipation amount emitted by the rotor dehumidifier when processing air and a regeneration heat absorption amount absorbed by the rotor dehumidifier when regenerating air, and calculate running parameters of each preset air state point when the process heat dissipation amount is equal to the regeneration heat absorption amount; an economic running parameter determination module, configured to calculate an economic ratio of the rotor dehumidifier in a current state based on the running parameters of each preset air state point, and determine the running parameters of each preset air state point as economic running parameters of the rotor dehumidifier if the economic ratio is within an economic ratio range. When the rotor dehumidifier is a single-rotor dehumidifier, the plurality of preset air state points comprise a process air inlet state point, a process air outlet state point, a regeneration air inlet state point and a regeneration air outlet state point. The running parameters comprise water vapor partial pressure and saturated vapor pressure, and when the running parameter calculation module is used to calculate the running parameters of each preset air state point when the process heat dissipation amount is equal to the regeneration heat absorption amount, the running parameter calculation module is further used to: set the process heat dissipation amount equal to the regeneration heat absorption amount, and simultaneously solve an equation for calculating the process heat dissipation amount and an equation for calculating the regeneration heat absorption amount to establish an energy conservation equation; substitute the temperature value corresponding to each preset air state point into the energy conservation equation to calculate the humidity content and the enthalpy value corresponding to each preset air state point; for each preset air state point, calculate the saturated vapor pressure of the preset air state point based on the temperature value of the preset air state point, and calculate the water vapor partial pressure of the preset air state point based on the saturated vapor pressure, the temperature value, the humidity content and the enthalpy value of the preset air state point; When the economic running parameter determination module is used to calculate the economic ratio of the rotor dehumidifier in the current state based on the running parameters of each preset air state point, the economic running parameter determination module is further used to: calculate an adsorption coefficient based on the water vapor partial pressure of the process air inlet state point, the saturated vapor pressure of the process air inlet state point, the water vapor partial pressure of the process air outlet state point and the saturated vapor pressure of the process air outlet state point; calculate a regeneration coefficient based on the water vapor partial pressure of the regeneration air inlet state point, the saturated vapor pressure of the regeneration air inlet state point, the water vapor partial pressure of the regeneration air outlet state point and the saturated vapor pressure of the regeneration air outlet state point; determine the economic ratio of the rotor dehumidifier as a ratio between the regeneration coefficient and the adsorption coefficient.

5. An electronic device, comprising: comprise: A processor, a memory and a bus, the memory stores machine readable instructions executable by the processor, when the electronic device is running, the processor and the memory communicate through the bus, the machine readable instructions are executed by the processor to perform the steps of the method for determining the economic operation parameters of the rotary dehumidifier according to any one of claims 1 to 3.

6. A computer-readable storage medium, characterized in that, The computer readable storage medium stores a computer program, and the computer program is executed by the processor to perform the steps of the method for determining the economic operation parameters of the rotary dehumidifier according to any one of claims 1 to 3.

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