Method and system for monitoring performance of rotating wheel of dehumidification unit

Abstract

The invention relates to the field of air conditioning, in particular to a dehumidification unit runner performance monitoring method and system.The method includes the steps that temperature and humidity data of inlets and outlets of the processing side and the regeneration side of a runner are collected through temperature and humidity sensors, and air volume data of the processing side and the regeneration side are obtained through fans of the processing side and the regeneration side of the runner; according to the temperature and humidity data of the processing side inlet and outlet, the air moisture content of the processing side inlet and outlet is calculated; according to the air volume data of the processing side and the regeneration side and the air moisture content of an inlet and an outlet of the processing side, the dehumidification amount of the rotating wheel is calculated, and the vaporization latent heat variation corresponding to the dehumidification amount of the rotating wheel is further calculated; calculating the sensible heat variation of the regeneration side according to the temperature and humidity data of the inlet and outlet of the regeneration side; and calculating the heat transfer efficiency of the runner according to the vaporization latent heat variation of the processing side and the sensible heat variation of the regeneration side, and judging whether the runner performance is abnormal or not according to the heat transfer efficiency, so that the runner performance abnormality can be effectively monitored, and the runner can be replaced in time.

Description

Technical Field

[0001] The invention relates to the field of air conditioning, and in particular to a method and system for monitoring the performance of a dehumidifier unit rotor. Background Art

[0002] The rotary dehumidifier unit can provide a stable low-humidity environment for the manufacturing workshop, and is widely used in the food, pharmaceutical and especially lithium battery industries. The rotor is the key core component of the dehumidifier unit, and the performance of the rotor determines the service life and operating energy consumption of the unit. In the actual operation process, due to the influence of the workshop environment and the changes in the internal structure of the rotor itself, the performance of the rotor will decay with the change of running time, which will not only increase the operating energy consumption of the unit but also affect the production of the enterprise. Therefore, it is very important to effectively identify the performance degradation of the rotor, so that the enterprise operation and maintenance personnel can replace the rotor in time, reduce the operating energy consumption of the unit, and avoid affecting production. Summary of the invention

[0003] The technical problem to be solved by the present invention is: the present invention provides a method and system for monitoring the performance of a dehumidifier wheel, which can effectively identify abnormal performance of the wheel and replace the wheel in time.

[0004] In order to solve the above technical problems, the technical solution adopted by the present invention is: A method for monitoring the performance of a dehumidifier wheel comprises the following steps: S1. Collect temperature and humidity data of the inlet and outlet of the processing side and the regeneration side of the rotor through temperature and humidity sensors, and obtain air volume data of the processing side and the regeneration side through fans on the processing side and the regeneration side of the rotor; S2. Calculate the air moisture content at the inlet and outlet of the processing side according to the temperature and humidity data at the inlet and outlet of the processing side; S3, calculating the dehumidification capacity of the rotary wheel according to the air volume data of the treatment side and the regeneration side and the air humidity at the inlet and outlet of the treatment side, and further calculating the change in latent heat of vaporization corresponding to the dehumidification capacity of the rotary wheel; S4. Calculate the sensible heat change on the regeneration side based on the temperature and humidity data at the inlet and outlet of the regeneration side; S5. Calculate the heat transfer efficiency of the wheel according to the change in latent heat of vaporization on the processing side and the change in sensible heat on the regeneration side, and determine whether the performance of the wheel is abnormal according to the heat transfer efficiency.

[0005] In order to solve the above technical problems, another technical solution adopted by the present invention is: A monitoring system for the performance of a dehumidifier unit rotor, comprising a data acquisition instrument and a data storage device; The data acquisition instrument is respectively connected to the first temperature and humidity sensor, the second temperature and humidity sensor, the first temperature sensor, the second temperature sensor, the first fan and the second fan in communication; The first temperature and humidity sensor is arranged at the processing side inlet of the dehumidifier wheel, the second temperature and humidity sensor is arranged at the processing side outlet of the dehumidifier wheel, the first temperature sensor is arranged at the regeneration side inlet of the dehumidifier wheel, and the second temperature sensor is arranged at the regeneration side outlet of the dehumidifier wheel; The first fan is a fan on the processing side of the dehumidifier unit, and the second fan is a fan on the regeneration side of the dehumidifier unit; The following steps are implemented by the data acquisition instrument and the data storage device: S1. Collect temperature and humidity data of the inlet and outlet of the processing side and the regeneration side of the rotor through temperature and humidity sensors, and obtain air volume data of the processing side and the regeneration side through fans on the processing side and the regeneration side of the rotor; S2. Calculate the air moisture content at the inlet and outlet of the processing side according to the temperature and humidity data at the inlet and outlet of the processing side; S3, calculating the dehumidification capacity of the rotary wheel according to the air volume data of the treatment side and the regeneration side and the air humidity at the inlet and outlet of the treatment side, and further calculating the change in latent heat of vaporization corresponding to the dehumidification capacity of the rotary wheel; S4. Calculate the sensible heat change on the regeneration side based on the temperature and humidity data at the inlet and outlet of the regeneration side; S5. Calculate the heat transfer efficiency of the wheel according to the change in latent heat of vaporization on the processing side and the change in sensible heat on the regeneration side, and determine whether the performance of the wheel is abnormal according to the heat transfer efficiency.

[0006] The beneficial effects of the present invention are as follows: a method and system for monitoring the performance of a dehumidification unit wheel of the present invention calculates the change in latent heat of vaporization and the change in sensible heat. The change in latent heat of vaporization (humidity transfer) is effective heat transfer, and the change in sensible heat (temperature transfer) caused by the contact temperature difference between the wheel and the air is ineffective heat transfer. By detecting and calculating the change in latent heat of vaporization and the change in sensible heat, the heat transfer efficiency of the wheel is obtained, thereby judging the performance of the dehumidification wheel. BRIEF DESCRIPTION OF THE DRAWINGS

[0007] Figure 1 This is a flow chart of a method for monitoring the performance of a dehumidifier unit rotor according to an embodiment of the present invention; Figure 2 A structural diagram of a dehumidifier unit rotor performance monitoring system according to an embodiment of the present invention; Description of labels: 1. First temperature and humidity sensor; 2. Second temperature and humidity sensor; 3. First temperature sensor; 4. Second temperature sensor; 5. First fan; 6. Second fan. DETAILED DESCRIPTION

[0008] In order to explain the technical content, achieved objectives and effects of the present invention in detail, the following is an explanation in combination with the implementation modes and the accompanying drawings.

[0009] Please refer to Figure 1 , a method for monitoring the performance of a dehumidifier wheel, comprising the steps of: S1. Collect temperature and humidity data of the inlet and outlet of the processing side and the regeneration side of the rotor through temperature and humidity sensors, and obtain air volume data of the processing side and the regeneration side through fans on the processing side and the regeneration side of the rotor; S2. Calculate the air moisture content at the inlet and outlet of the processing side according to the temperature and humidity data at the inlet and outlet of the processing side; S3, calculating the dehumidification capacity of the rotary wheel according to the air volume data of the treatment side and the regeneration side and the air humidity at the inlet and outlet of the treatment side, and further calculating the change in latent heat of vaporization corresponding to the dehumidification capacity of the rotary wheel; S4. Calculate the sensible heat change on the regeneration side based on the temperature and humidity data at the inlet and outlet of the regeneration side; S5. Calculate the heat transfer efficiency of the wheel according to the change in latent heat of vaporization on the processing side and the change in sensible heat on the regeneration side, and determine whether the performance of the wheel is abnormal according to the heat transfer efficiency.

[0010] From the above description, it can be seen that the beneficial effects of the present invention are: a method for monitoring the performance of a dehumidification unit wheel of the present invention calculates the change in latent heat of vaporization and the change in sensible heat. The change in latent heat of vaporization (humidity transfer) is effective heat transfer, and the change in sensible heat (temperature transfer) caused by the contact temperature difference between the wheel and the air is ineffective heat transfer. By detecting and calculating the change in latent heat of vaporization and the change in sensible heat, the heat transfer efficiency of the wheel is obtained, thereby judging the performance of the dehumidification wheel.

[0011] Furthermore, the calculation of air humidity is as follows: ; Wherein, d represents the air moisture content, g / kg; T represents the air temperature, ℃; Ψ represents the air relative humidity, %.

[0012] From the above description, it can be known that the moisture content of the air is calculated based on the temperature and the relative humidity of the air.

[0013] Furthermore, the calculation of the dehumidification capacity of the rotary wheel is specifically as follows: ; in, represents the dehumidification capacity of the rotary wheel, kg / h; ρ represents the air density, kg / m 3 , at standard atmospheric pressure, 20°C, take 1.205kg / m 3 ; Indicates the side air volume, m 3 / h; Indicates the air moisture content at the treatment side inlet, g / kg; The calculation of the change in latent heat of vaporization is specifically as follows: ; in, represents the change in latent heat of vaporization, Kw; r represents the latent heat of vaporization of water, 2501KJ / kg.

[0014] From the above description, it can be seen that the dehumidification capacity of the wheel can be calculated based on the difference in air humidity at the inlet and outlet of the wheel processing side, combined with the air volume on the processing side, and the change in latent heat of vaporization is determined based on the dehumidification capacity of the wheel.

[0015] Furthermore, the calculation of the sensible heat change on the regeneration side is specifically as follows: / 3600; in, represents the change in sensible heat, Kw; C represents the specific heat capacity of air, kj / (kg*K), at 300K, the value is 1.005kj / (kg*K); ρ represents the air density, kg / m 3 , at standard atmospheric pressure, 20°C, take 1.205kg / m 3 ; Represents the regeneration side air volume, m 3 / h; represents the inlet air temperature on the regeneration side, K; Represents the outlet air temperature on the regeneration side, K.

[0016] From the above description, it can be seen that the calculation of the sensible heat change is based on the temperature of the inlet and outlet of the regeneration side, combined with the air volume on the regeneration side.

[0017] Furthermore, the heat transfer efficiency of the runner is calculated as follows: ; in, represents the change in latent heat of vaporization, Indicates the change in sensible heat on the regeneration side; Judging whether the performance of the runner is abnormal according to the heat transfer efficiency is specifically as follows: It is determined whether the heat transfer efficiency is less than a preset abnormal threshold value. If so, it is determined that the performance of the wheel is abnormal; otherwise, it is determined that there is no abnormality in the performance of the wheel.

[0018] From the above description, it can be seen that the heat transfer efficiency is calculated based on the change in latent heat of vaporization and the change in sensible heat, which directly reflects the ability of the wheel to transfer heat and moisture during the dehumidification process. High heat transfer efficiency means that the wheel can more effectively transfer moisture and heat in the air to the desiccant, thereby improving the dehumidification effect.

[0019] Please refer to Figure 2, a monitoring system for the performance of a dehumidifier unit rotor, including a data acquisition instrument and a data storage device; The data acquisition instrument is respectively connected to the first temperature and humidity sensor, the second temperature and humidity sensor, the first temperature sensor, the second temperature sensor, the first fan and the second fan in communication; The first temperature and humidity sensor is arranged at the processing side inlet of the dehumidifier wheel, the second temperature and humidity sensor is arranged at the processing side outlet of the dehumidifier wheel, the first temperature sensor is arranged at the regeneration side inlet of the dehumidifier wheel, and the second temperature sensor is arranged at the regeneration side outlet of the dehumidifier wheel; The first fan is a fan on the processing side of the dehumidifier unit, and the second fan is a fan on the regeneration side of the dehumidifier unit; The following steps are implemented by the data acquisition instrument and the data storage device: S1. Collect temperature and humidity data of the inlet and outlet of the processing side and the regeneration side of the rotor through temperature and humidity sensors, and obtain air volume data of the processing side and the regeneration side through fans on the processing side and the regeneration side of the rotor; S2. Calculate the air moisture content at the inlet and outlet of the processing side according to the temperature and humidity data at the inlet and outlet of the processing side; S3, calculating the dehumidification capacity of the rotary wheel according to the air volume data of the treatment side and the regeneration side and the air humidity at the inlet and outlet of the treatment side, and further calculating the change in latent heat of vaporization corresponding to the dehumidification capacity of the rotary wheel; S4. Calculate the sensible heat change on the regeneration side based on the temperature and humidity data at the inlet and outlet of the regeneration side; S5. Calculate the heat transfer efficiency of the wheel according to the change in latent heat of vaporization on the processing side and the change in sensible heat on the regeneration side, and determine whether the performance of the wheel is abnormal according to the heat transfer efficiency.

[0020] From the above description, it can be seen that the beneficial effects of the present invention are: a monitoring system for the performance of a dehumidifier wheel of the present invention calculates the change in latent heat of vaporization and the change in sensible heat. The change in latent heat of vaporization (humidity transfer) is effective heat transfer, and the change in sensible heat (temperature transfer) caused by the contact temperature difference between the wheel and the air is ineffective heat transfer. By detecting and calculating the change in latent heat of vaporization and the change in sensible heat, the heat transfer efficiency of the wheel is obtained, thereby judging the performance of the dehumidification wheel.

[0021] Furthermore, the calculation of air humidity is as follows: ; Wherein, d represents the air moisture content, g / kg; T represents the air temperature, ℃; Ψ represents the air relative humidity, %.

[0022] From the above description, it can be known that the moisture content of the air is calculated based on the temperature and the relative humidity of the air.

[0023] Furthermore, the calculation of the dehumidification capacity of the rotary wheel is specifically as follows: ; in, represents the dehumidification capacity of the rotary wheel, kg / h; ρ represents the air density, kg / m 3 , at standard atmospheric pressure, 20°C, take 1.205kg / m 3 ; Indicates the side air volume, m 3 / h; Indicates the air moisture content at the treatment side inlet, g / kg; The calculation of the change in latent heat of vaporization is specifically as follows: ; in, represents the change in latent heat of vaporization, Kw; r represents the latent heat of vaporization of water, 2501KJ / kg.

[0024] From the above description, it can be seen that the dehumidification capacity of the wheel can be calculated based on the difference in air humidity at the inlet and outlet of the wheel processing side, combined with the air volume on the processing side, and the change in latent heat of vaporization is determined based on the dehumidification capacity of the wheel.

[0025] Furthermore, the calculation of the sensible heat change on the regeneration side is specifically as follows: / 3600; in, represents the change in sensible heat, Kw; C represents the specific heat capacity of air, kj / (kg*K), at 300K, the value is 1.005kj / (kg*K); ρ represents the air density, kg / m 3 , at standard atmospheric pressure, 20°C, take 1.205kg / m 3 ; Represents the regeneration side air volume, m 3 / h; represents the inlet air temperature on the regeneration side, K; Represents the outlet air temperature on the regeneration side, K.

[0026] From the above description, it can be seen that the calculation of the sensible heat change is based on the temperature of the inlet and outlet of the regeneration side, combined with the air volume on the regeneration side.

[0027] Furthermore, the heat transfer efficiency of the runner is calculated as follows: ; in, represents the change in latent heat of vaporization, Indicates the change in sensible heat on the regeneration side; Judging whether the performance of the runner is abnormal according to the heat transfer efficiency is specifically as follows: It is determined whether the heat transfer efficiency is less than a preset abnormal threshold value. If so, it is determined that the performance of the wheel is abnormal; otherwise, it is determined that there is no abnormality in the performance of the wheel.

[0028] From the above description, it can be seen that the heat transfer efficiency is calculated based on the change in latent heat of vaporization and the change in sensible heat, which directly reflects the ability of the wheel to transfer heat and moisture during the dehumidification process. High heat transfer efficiency means that the wheel can more effectively transfer moisture and heat in the air to the desiccant, thereby improving the dehumidification effect.

[0029] The present invention provides a method and system for monitoring the performance of a dehumidifier wheel, which are suitable for monitoring the performance of a dehumidifier wheel.

[0030] Please refer to Figure 1 , Embodiment 1 of the present invention is: A method for monitoring the performance of a dehumidifier wheel comprises the following steps: S1. Collect temperature and humidity data of the inlet and outlet of the processing side and the regeneration side of the rotor through temperature and humidity sensors, and obtain air volume data of the processing side and the regeneration side through fans on the processing side and the regeneration side of the rotor; S2. Calculate the air moisture content at the inlet and outlet of the processing side according to the temperature and humidity data at the inlet and outlet of the processing side; The calculation of air humidity is as follows: ; in, d Indicates the humidity content of air in g / kg. T Indicates the air temperature in °C. Ψ Indicates the relative humidity of the air, expressed as a percentage.

[0031] S3, calculating the dehumidification capacity of the rotary wheel according to the air volume data of the treatment side and the regeneration side and the air humidity at the inlet and outlet of the treatment side, and further calculating the change in latent heat of vaporization corresponding to the dehumidification capacity of the rotary wheel; The calculation of the dehumidification capacity of the rotary wheel is specifically as follows: ; in, It represents the dehumidification capacity of the rotary wheel, in kg / h; ρ represents the air density, in kg / m 3 , at standard atmospheric pressure, 20°C, take 1.205kg / m 3 ; Indicates the side air volume to be treated, in m 3 / h; Indicates the air moisture content at the treatment side inlet, in g / kg; Indicates the air moisture content at the outlet of the treatment side, in g / kg; The calculation of the change in latent heat of vaporization is specifically as follows: ; in, It represents the change in latent heat of vaporization, with the unit being Kw. r represents the latent heat of vaporization of water, which is 2501KJ / kg.

[0032] S4. Calculate the sensible heat change on the regeneration side based on the temperature and humidity data at the inlet and outlet of the regeneration side; The calculation of the sensible heat change on the regeneration side is specifically as follows: ; in, represents the change in sensible heat, Kw; C represents the specific heat capacity of air, kj / (kg*K), at 300K, the value is 1.005kj / (kg*K); ρ represents the air density, kg / m 3 , at standard atmospheric pressure, 20°C, take 1.205kg / m 3 ; Represents the regeneration side air volume, m 3 / h; represents the inlet air temperature on the regeneration side, K; Represents the outlet air temperature on the regeneration side, K.

[0033] S5. Calculate the heat transfer efficiency of the wheel according to the change in latent heat of vaporization on the treatment side and the change in sensible heat on the regeneration side, and determine whether the performance of the wheel is abnormal according to the heat transfer efficiency; The calculation of the heat transfer efficiency of the runner is specifically as follows: ; in, represents the change in latent heat of vaporization, Indicates the change in sensible heat on the regeneration side; Judging whether the performance of the runner is abnormal according to the heat transfer efficiency is specifically as follows: It is determined whether the heat transfer efficiency is less than a preset abnormal threshold value. If so, it is determined that the performance of the wheel is abnormal; otherwise, it is determined that there is no abnormality in the performance of the wheel.

[0034] In this embodiment, the heat transfer efficiency of the rotor is calculated = latent heat of vaporization on the treatment side / change in sensible heat on the regeneration side, and the heat transfer efficiency of the rotor is displayed in real time on the data storage device of the dehumidifier unit, which is convenient for users to view in real time. The higher the heat transfer efficiency of the dehumidifier rotor, the better the performance of the rotor, because the heat transfer efficiency directly reflects the ability of the rotor to transfer heat and moisture during the dehumidification process. High heat transfer efficiency means that the rotor can more effectively transfer moisture and heat in the air to the desiccant, thereby improving the dehumidification effect. Conversely, the worse the performance of the rotor, the better the performance of the rotor can be judged. In this embodiment, combined with the actual operation data of the enterprise, the abnormal threshold is set to 0.4. When the heat transfer efficiency is lower than 0.4, the rotor needs to be replaced. In other equivalent embodiments, the abnormal threshold can be adjusted according to actual needs.

[0035] Please refer to Figure 2 , Embodiment 2 of the present invention is: A monitoring system for the performance of a dehumidifier unit rotor, comprising a data acquisition instrument and a data storage device; The data acquisition instrument is respectively connected to the first temperature and humidity sensor 1, the second temperature and humidity sensor 2, the first temperature sensor 3, the second temperature sensor 4, the first fan 5 and the second fan 6 for communication; The first temperature and humidity sensor 1 is arranged at the processing side inlet of the dehumidifier wheel, the second temperature and humidity sensor 2 is arranged at the processing side outlet of the dehumidifier wheel, the first temperature sensor 3 is arranged at the regeneration side inlet of the dehumidifier wheel, and the second temperature sensor 4 is arranged at the regeneration side outlet of the dehumidifier wheel; The first fan 5 is a fan on the processing side of the dehumidifier unit, and the second fan 6 is a fan on the regeneration side of the dehumidifier unit; The steps of the method for monitoring the performance of the dehumidifier wheel described in the first embodiment are implemented through the data acquisition instrument and the data storage device.

[0036] In summary, the present invention provides a method and system for monitoring the performance of a dehumidifier wheel, which calculates the change in latent heat of vaporization and the change in sensible heat. The change in latent heat of vaporization (humidity transfer) is effective heat transfer, and the change in sensible heat (temperature transfer) caused by the contact temperature difference between the wheel and the air is ineffective heat transfer. By detecting and calculating the change in latent heat of vaporization and the change in sensible heat, the heat transfer efficiency of the wheel is obtained, thereby judging the performance of the dehumidification wheel.

[0037] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent transformations made using the contents of the present invention's specification and drawings, or directly or indirectly applied in related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A method for monitoring the performance of a dehumidifier wheel, characterized in that: Includes steps: S1. Collect temperature and humidity data of the inlet and outlet of the processing side and the regeneration side of the rotor through temperature and humidity sensors, and obtain air volume data of the processing side and the regeneration side through fans on the processing side and the regeneration side of the rotor; S2. Calculate the air moisture content at the inlet and outlet of the processing side according to the temperature and humidity data at the inlet and outlet of the processing side; S3, calculating the dehumidification capacity of the rotary wheel according to the air volume data of the treatment side and the regeneration side and the air humidity at the inlet and outlet of the treatment side, and further calculating the change in latent heat of vaporization corresponding to the dehumidification capacity of the rotary wheel; S4. Calculate the sensible heat change on the regeneration side based on the temperature and humidity data at the inlet and outlet of the regeneration side; S5. Calculate the heat transfer efficiency of the wheel according to the change in latent heat of vaporization on the processing side and the change in sensible heat on the regeneration side, and determine whether the performance of the wheel is abnormal according to the heat transfer efficiency.

2. A method for monitoring the performance of a dehumidifier wheel according to claim 1, characterized in that: The calculation of air humidity is as follows: ； in, d Indicates the humidity content of air, g / kg; T Indicates air temperature, °C; Ψ Indicates relative humidity of air, %.

3. A method for monitoring the performance of a dehumidifier wheel according to claim 1, characterized in that: The calculation of the dehumidification capacity of the rotary wheel is specifically as follows: ； in, represents the dehumidification capacity of the rotary wheel, kg / h; ρ represents the air density, kg / m 3 , at standard atmospheric pressure, 20°C, take 1.205kg / m 3 ; Indicates the side air volume, m 3 / h; Indicates the air moisture content at the treatment side inlet, g / kg; Indicates the air moisture content at the outlet of the treatment side, g / kg; The calculation of the change in latent heat of vaporization is specifically as follows: ； in, represents the change in latent heat of vaporization, Kw; r represents the latent heat of vaporization of water, 2501KJ / kg.

4. A method for monitoring the performance of a dehumidifier wheel according to claim 1, characterized in that: The calculation of the sensible heat change on the regeneration side is specifically as follows: ； in, represents the change in sensible heat, Kw; C represents the specific heat capacity of air, kj / (kg*K), at 300K, the value is 1.005kj / (kg*K); ρ represents the air density, kg / m 3 , at standard atmospheric pressure, 20°C, take 1.205kg / m 3 ; Represents the regeneration side air volume, m 3 / h; represents the inlet air temperature on the regeneration side, K; Represents the outlet air temperature on the regeneration side, K.

5. The method for monitoring the performance of a dehumidifier wheel according to claim 1, characterized in that: The calculation of the heat transfer efficiency of the runner is specifically as follows: ； Where Q1 represents the change in latent heat of vaporization, Indicates the change in sensible heat on the regeneration side; Judging whether the performance of the runner is abnormal according to the heat transfer efficiency is specifically as follows: It is determined whether the heat transfer efficiency is less than a preset abnormal threshold value. If so, it is determined that the performance of the wheel is abnormal; otherwise, it is determined that there is no abnormality in the performance of the wheel.

6. A monitoring system for the performance of a dehumidifier wheel, characterized in that: Including data acquisition instrument and data storage equipment; The data acquisition instrument is respectively connected to the first temperature and humidity sensor, the second temperature and humidity sensor, the first temperature sensor, the second temperature sensor, the first fan and the second fan in communication; The first temperature and humidity sensor is arranged at the processing side inlet of the dehumidifier wheel, the second temperature and humidity sensor is arranged at the processing side outlet of the dehumidifier wheel, the first temperature sensor is arranged at the regeneration side inlet of the dehumidifier wheel, and the second temperature sensor is arranged at the regeneration side outlet of the dehumidifier wheel; The first fan is a fan on the processing side of the dehumidifier unit, and the second fan is a fan on the regeneration side of the dehumidifier unit; The following steps are implemented by the data acquisition instrument and the data storage device: S1. Collect temperature and humidity data of the inlet and outlet of the processing side and the regeneration side of the rotor through temperature and humidity sensors, and obtain air volume data of the processing side and the regeneration side through fans on the processing side and the regeneration side of the rotor; S2. Calculate the air moisture content at the inlet and outlet of the processing side according to the temperature and humidity data at the inlet and outlet of the processing side; S3, calculating the dehumidification capacity of the rotary wheel according to the air volume data of the treatment side and the regeneration side and the air humidity at the inlet and outlet of the treatment side, and further calculating the change in latent heat of vaporization corresponding to the dehumidification capacity of the rotary wheel; S4. Calculate the sensible heat change on the regeneration side based on the temperature and humidity data at the inlet and outlet of the regeneration side; S5. Calculate the heat transfer efficiency of the wheel according to the change in latent heat of vaporization on the processing side and the change in sensible heat on the regeneration side, and determine whether the performance of the wheel is abnormal according to the heat transfer efficiency.

7. A dehumidifier unit rotor performance monitoring system according to claim 6, characterized in that: The calculation of air humidity is as follows: ； Wherein, d represents the air moisture content, g / kg; T represents the air temperature, ℃; Ψ represents the air relative humidity, %.

8. A dehumidifier unit rotor performance monitoring system according to claim 6, characterized in that: The calculation of the dehumidification capacity of the rotary wheel is specifically as follows: ； in, represents the dehumidification capacity of the rotary wheel, kg / h; ρ represents the air density, kg / m 3 , at standard atmospheric pressure, 20°C, take 1.205kg / m 3 ; Indicates the side air volume, m 3 / h; Indicates the air moisture content at the treatment side inlet, g / kg; The calculation of the change in latent heat of vaporization is specifically as follows: ； in, represents the change in latent heat of vaporization, Kw; r represents the latent heat of vaporization of water, 2501KJ / kg.

9. A dehumidifier unit rotor performance monitoring system according to claim 6, characterized in that: The calculation of the sensible heat change on the regeneration side is specifically as follows: / 3600； in, represents the change in sensible heat, Kw; C represents the specific heat capacity of air, kj / (kg*K), at 300K, the value is 1.005kj / (kg*K); ρ represents the air density, kg / m 3 , at standard atmospheric pressure, 20°C, take 1.205kg / m 3 ; Represents the regeneration side air volume, m 3 / h; represents the inlet air temperature on the regeneration side, K; Represents the outlet air temperature on the regeneration side, K.

10. A dehumidifier unit rotor performance monitoring system according to claim 6, characterized in that: The calculation of the heat transfer efficiency of the runner is specifically as follows: ； Among them, Q1 represents the change in latent heat of vaporization, and Q2 represents the change in sensible heat on the regeneration side; Judging whether the performance of the runner is abnormal according to the heat transfer efficiency is specifically as follows: It is determined whether the heat transfer efficiency is less than a preset abnormal threshold value. If so, it is determined that the performance of the wheel is abnormal; otherwise, it is determined that there is no abnormality in the performance of the wheel.

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