CN-122016363-A - Multi-parameter adjustable experimental test platform for drum clothes dryer

Abstract

The invention relates to a multi-parameter adjustable experiment test platform for a drum clothes dryer, which comprises an air treatment part, a drum part and a control system part, wherein the air treatment part is used for providing air flow with independently controllable thermodynamic parameters for the drum part, the drum part is used for enabling a fabric load to complete heat-moisture exchange with the air flow under the control of the drum control parameters, the control system part comprises an operation layer and a monitoring layer, the monitoring layer is used for monitoring thermodynamic parameters of all nodes and the quality of the fabric load and realizing full-flow automatic control of an experiment, the operation layer comprises an air treatment subsystem and a drum movement subsystem, the air treatment subsystem is used for independently regulating and controlling the thermodynamic parameters of the air flow provided by the air treatment part according to the thermodynamic parameters of all the nodes, and the drum movement subsystem is used for regulating the drum control parameters. The invention can effectively separate the independent effect and interaction of each parameter, and improve experimental repeatability and data reliability.

Inventors

• YANG SUYUN
• DING XUEMEI
• FANG FANG

Assignees

• 东华大学

Dates

Publication Date

20260512

Application Date

20260402

Claims (8)

1. 1. A multi-parameter adjustable experimental test platform for a drum dryer, which is characterized by comprising an air treatment part, a drum part and a control system part; The air treatment part is used for providing air flow with each thermodynamic parameter independently controllable to the roller part, wherein the thermodynamic parameters comprise moisture content, dry air mass flow and temperature; the roller part is connected with the output end of the air treatment part and is used for enabling the fabric load to complete heat-moisture exchange with the air flow under the control of roller control parameters, wherein the roller control parameters comprise a motion sequence, a rotating speed and a stage duration; the control system part comprises an operation layer and a monitoring layer, wherein the monitoring layer is used for monitoring thermodynamic parameters of each node and quality of fabric load and realizing full-flow automatic control of experiments, the operation layer comprises an air treatment subsystem and a roller motion subsystem, the air treatment subsystem is used for independently regulating and controlling the thermodynamic parameters of air flow provided by the air treatment part according to the monitored thermodynamic parameters of each node, and the roller motion subsystem is used for regulating the roller control parameters.
2. 2. The multi-parameter adjustable experimental test platform for a tumble dryer according to claim 1, wherein said air treatment section comprises an air pretreatment module, an air delivery module and an air reheating module connected in sequence; The air pretreatment module is provided with a pretreatment chamber with a heat insulation function and a constant temperature and humidity machine, and the constant temperature and humidity machine is used for regulating and controlling the moisture content of air in the pretreatment chamber; the air conveying module is provided with a variable frequency fan which is used for adjusting the dry air mass flow; the air reheating module is provided with an electric heater for adjusting the temperature of air.
3. 3. The multi-parameter adjustable experiment test platform for a drum dryer according to claim 2, wherein the air treatment subsystem comprises a moisture content control module for calculating deviation between the temperature and humidity in the pretreatment chamber collected by the monitoring layer in real time and a preset target temperature and humidity, and regulating the constant temperature and humidity machine based on the deviation so that the moisture content of the air in the pretreatment chamber reaches the target humidity.
4. 4. The multi-parameter adjustable experimental test platform for the drum dryer according to claim 2, wherein the air processing subsystem comprises a frequency control module, wherein the frequency control module is used for adjusting the frequency of a frequency converter of the variable frequency fan by adopting a mapping model according to target dry air mass flow, the mapping model is obtained by adjusting the frequency of the frequency converter of the variable frequency fan, monitoring the wind speed of air flow in real time by the monitoring layer to obtain a mapping relation of frequency and wind speed, linearly converting the measured wind speed into dry air mass flow by utilizing fan characteristic parameters and aerodynamic association logic to obtain a mapping relation of wind speed and dry air mass flow, and combining the mapping relation of frequency and wind speed with the mapping relation of wind speed and dry air mass flow to obtain the mapping model.
5. 5. The multi-parameter adjustable experiment test platform for the drum dryer according to claim 2, wherein the air processing subsystem comprises a temperature control module for calculating deviation between the temperature of the air flow collected by the monitoring layer in real time and a preset target air flow temperature, and performing PID control on the electric heater based on the deviation so that the temperature of the air flow reaches the target air flow temperature.
6. 6. The multi-parameter adjustable experiment test platform for a drum dryer according to claim 1, wherein the drum motion subsystem controls the drum portion through an external frequency converter in a four-stage bi-directional alternating sequential cyclic motion comprising a drum counter-clockwise rotation operation stage, a first stop holding stage, a drum clockwise rotation operation stage and a second stop holding stage, the operation durations of the drum counter-clockwise rotation operation stage and the drum clockwise rotation operation stage each comprising a motor rotation operation time and an inertia compensation dwell time for asymmetrically aligning a control command timing of the motor with a physical motion timing of the drum.
7. 7. The multi-parameter adjustable experimental test platform for the drum dryer according to claim 1, wherein the air duct in the air treatment part and the air duct between the air treatment part and the drum part are formed by constructing one or more of a high-temperature-resistant silica gel vulcanization air duct, a stainless steel air duct and a galvanized air duct, and the connecting nodes of the air ducts are sealed by adopting flanges, hoops, sealant and aluminum foil adhesive tapes, and heat insulation materials are laid outside the air ducts.
8. 8. The multi-parameter adjustable experiment test platform for the drum dryer according to claim 1, wherein the monitoring layer supports a whole process fixed parameter configuration mode and a staged parameter configuration mode in a whole process automatic control process for realizing experiments, the whole process automatic control process comprises a load quality termination condition and a drying time termination condition, the load quality termination condition means that experiments are terminated when the quality of a fabric load reaches a preset load target quality, the drying time termination condition means that experiments are terminated when the drying time of the fabric load reaches a preset drying target time, the whole process fixed parameter configuration mode means that a group of experiment parameters are set before experiments, the group of experiment parameters comprise thermodynamic parameters, drum control parameters and termination conditions, the air treatment subsystem controls the air treatment part according to the set thermodynamic parameters in the experiment process, the drum operation subsystem controls the drum part according to the set drum control parameters until the set termination conditions are reached, the staged parameter configuration mode means that a plurality of groups of parameters are set before experiments, each group of parameters comprise control parameters and termination conditions, the air treatment subsystem controls the thermodynamic parameters according to the set thermodynamic parameters until the experiment parameters in the experiment process is completed in the experiment process, and the air treatment subsystem controls the air treatment part according to the set of the thermodynamic parameters until the experiment parameters in the experiment parameters are completed in the experiment process after the experiment parameters are partially completed.

Description

Multi-parameter adjustable experimental test platform for drum clothes dryer Technical Field The invention relates to the technical field of clothes drying experiment tests, in particular to a multi-parameter adjustable experiment test platform for a roller clothes dryer. Background The drum dryer is one of household high-energy-consumption appliances, and the improvement of the energy efficiency level of the drum dryer has become an important research direction. The direct-discharge type drum clothes dryer is characterized in that the direct-discharge type drum clothes dryer is a main stream configuration of residential and commercial scenes due to the simple mechanical structure, low initial cost and high drying efficiency, and avoids the interference of internal heat recovery or closed loop effect due to the linear thermodynamic path formed by air suction, sensible heat heating and direct exhaust, so that a clear and stable system boundary is defined for heat and mass transfer analysis, and the direct-discharge type drum clothes dryer is widely regarded as an important reference for drum clothes drying equipment research. The nature of drum drying is the coupling heat mass transfer process between the heated air flow and the mechanically agitated fabric in the rotating drum, and the drying performance is determined by two interacting parameter systems, namely, the hot-wet-aerodynamic state of the air inlet side, which covers the core parameters such as temperature, humidity, flow and the like, and the kinematic characteristics of the drum side, which comprise key indexes such as movement sequence, rotation speed, turning and operation duration and the like. The heat mass transfer mechanism is deeply revealed, the high-precision drying dynamics model is built, and the method is a precondition for improving the energy efficiency of the clothes dryer and optimizing the drying strategy. However, the conventional experimental test platform for drum drying research has obvious technical defects, and is difficult to meet the research requirements that on one hand, special air humidity parameter regulation equipment is generally lacked, and accurate independent regulation and control of thermal humidity-aerodynamic parameters cannot be realized, and on the other hand, regulation and control of drum kinematic parameters are mostly limited to a simplified motion mode, such as unidirectional rotation at a constant rotating speed or basic symmetrical bidirectional operation, and support for a programmable and time-resolved sequence is limited, so that more complex motion strategies such as intermittent overturning, asymmetric bidirectional rotating speed, independently configurable rotation-pause circulation and the like cannot be realized. In summary, the existing platform cannot realize wide-range, independent and cooperative regulation and control on the air state and the complex drum kinematics parameter, and cannot meet the actual demands of drum clothes drying equipment and technical research. Disclosure of Invention The invention aims to solve the technical problem of providing a multi-parameter adjustable experiment test platform for a roller clothes dryer, which can effectively separate independent effects and interaction of all parameters and improve experiment repeatability and data reliability. The technical scheme adopted by the invention for solving the technical problems is that a multi-parameter adjustable experimental test platform for a roller clothes dryer is provided, and comprises an air treatment part, a roller part and a control system part; The air treatment part is used for providing air flow with each thermodynamic parameter independently controllable to the roller part, wherein the thermodynamic parameters comprise moisture content, dry air mass flow and temperature; the roller part is connected with the output end of the air treatment part and is used for enabling the fabric load to complete heat-moisture exchange with the air flow under the control of roller control parameters, wherein the roller control parameters comprise a motion sequence, a rotating speed and a stage duration; the control system part comprises an operation layer and a monitoring layer, wherein the monitoring layer is used for monitoring thermodynamic parameters of each node and quality of fabric load and realizing full-flow automatic control of experiments, the operation layer comprises an air treatment subsystem and a roller motion subsystem, the air treatment subsystem is used for independently regulating and controlling the thermodynamic parameters of air flow provided by the air treatment part according to the monitored thermodynamic parameters of each node, and the roller motion subsystem is used for regulating the roller control parameters. The air treatment part comprises an air pretreatment module, an air conveying module and an air reheating module which are sequentially connected; The air pretreatment modul