Heat pump energy-saving system and industrial drum clothes dryer

Abstract

The invention relates to the field of heat pump energy-saving systems, in particular to a heat pump energy-saving system and an industrial drum clothes dryer, the heat pump energy-saving system comprises at least two sets of heat pump systems, a control system and a heat recycling device, and further comprises an air channel, the air channel is provided with an air inlet and an air outlet, and a first fan is arranged at the air inlet; the heat recycling device comprises a heat receiver, a conduction pipeline and a heat releaser, a micro-electro-mechanical regulation and control element is arranged in the heat receiver, the heat receiver is installed at the exhaust port, an adjustable micro-valve used for adjusting the flow speed and a variable flow guide module used for adjusting the flow speed are arranged in the conduction pipeline, and the heat releaser is installed at the exhaust port. The heat releaser is close to the air inlet and located above the condenser, and the heat receiver and the heat releaser are communicated through the conduction pipeline; the flow rate of the high-temperature gas in the conduction pipeline is increased, local turbulence is formed in the pipeline, hot air is quickly transferred to the heat releaser from the heat receiver, and the energy consumption and the operation cost are reduced.

Description

Technical Field

[0001] The invention relates to the field of heat pump energy-saving systems, in particular to a heat pump energy-saving system and an industrial tumble dryer. Background Art

[0002] With the increasing popularity of energy-saving and environmental protection concepts, heat pump systems, as a highly efficient energy utilization device, have been widely used in building heating, refrigeration and industrial waste heat utilization. Existing heat pump systems mainly rely on the basic cycle composed of compressors, evaporators, condensers and expansion valves to achieve heat conversion and transfer by improving low-grade thermal energy in the environment. However, traditional heat pump systems have the following shortcomings: During the operation of the heat pump, most of the hot air generated by the condenser after heating the surrounding air is directly discharged into the environment, and cannot be effectively recycled. This not only leads to energy waste, but also affects the overall energy efficiency of the system. In traditional designs, there is a lack of effective capture and utilization mechanism for the heat energy generated near the condenser, which limits the energy-saving potential of the heat pump system. Summary of the invention

[0003] The first object of the present invention is to provide a heat pump energy-saving system that circulates and dynamically adjusts thermal energy and has significant energy-saving advantages.

[0004] The second object of the present invention is to provide an industrial drum dryer which can circulate and dynamically adjust thermal energy and has significant energy-saving advantages.

[0005] The first object of the present invention is achieved by: A heat pump energy-saving system, comprising at least two heat pump systems, a control system and a heat recovery and utilization device, and also comprising an air channel, wherein the air channel is provided with an air inlet and an exhaust port, and a first fan is provided at the air inlet; The heat pump system comprises a compressor, an evaporator, a condenser and an electronic expansion valve, wherein the condenser is close to the air inlet; The heat recovery and utilization device comprises a heat receiver, a conduction pipe and a heat releaser, wherein the heat receiver is equipped with a micro-electromechanical control element, the heat receiver is installed at the exhaust port, the conduction pipe is equipped with an adjustable micro-valve for adjusting the flow rate and a variable flow guide module for adjusting the flow rate, the heat releaser is close to the air inlet and located above the condenser, and the heat receiver and the heat releaser are connected through the conduction pipe; The heat pump system, the first fan, the micro-electromechanical control element, the micro-valve and the variable flow guide module are electrically connected to the control system respectively; When the heat pump system is working, the condenser heats the surrounding air to form hot air, which is guided by the first fan to form hot air and enter the wind channel along the air inlet. Finally, the hot air is discharged to the exhaust port and received by the heat receiver, which guides the hot air into the conduction pipe. At the same time, the micro-electromechanical control element detects the hot air, and the micro-electromechanical control element adjusts the microvalve and the variable flow guide module to increase the flow rate of the high-temperature gas in the conduction pipe and form local turbulence in the pipe, so that the hot air is quickly transferred from the heat receiver to the heat releaser; The heat releaser releases hot air around the condenser to preheat the air around the condenser. The condenser heats the preheated air to quickly form hot air. The hot air is guided by the first fan to form hot air and enters the wind channel along the air inlet, circulating back and forth.

[0006] The high-temperature hot air generated by the heat pump system is guided by the first fan to form hot air and enter the wind channel. Then, the heat in the hot air is quickly recovered and transferred to the air around the condenser through a closed loop composed of a heat receiver, a conduction pipe and a heat releaser, thereby preheating the waste heat. This multi-stage heat exchange greatly improves the overall energy efficiency of the system and reduces energy consumption.

[0007] The built-in micro-electromechanical control element detects the hot air temperature and adjusts the adjustable micro-valve and variable diversion module to increase the gas flow rate in the conduction pipe and form turbulence locally. The local turbulence significantly increases the heat transfer coefficient between the hot air and the pipe wall, ensuring that heat can be quickly and efficiently transferred from the heat receiver to the heat releaser, thereby accelerating the preheating effect.

[0008] The integrated adaptive algorithm module collects data from the temperature sensor in real time, and dynamically adjusts the opening of the electronic expansion valve, the operating frequency of the compressor and the speed of the first fan according to the ambient temperature, so that the heat pump system and the heat recovery device always operate in the best state. This dynamic regulation not only improves the heat exchange efficiency, but also ensures that the equipment can operate efficiently under different working conditions, further reducing energy consumption and operating costs.

[0009] The first object of the present invention can also be solved by the following technical measures: Furthermore, the adjustable microvalve includes a valve body, a valve flap and a micro-actuator, and the micro-actuator is a piezoelectric ceramic drive unit or a MEMS actuator; The valve body is arranged in the conducting pipe, and the valve body is provided with an air outlet; The valve flap is provided with an elastic sealing layer, and the valve flap is movably arranged at the air outlet of the valve body for opening or closing the air outlet; The micro-actuator is electrically connected to a control system. The control system sends a signal to the micro-actuator. The micro-actuator pushes the valve flap to swing, adjusts the opening and closing degree of the air outlet, and changes the flow rate of the high-temperature gas in the conduction pipeline.

[0010] The opening and closing degree of the valve disc is precisely controlled by a micro-actuator (such as a piezoelectric ceramic drive unit or a MEMS actuator), thereby dynamically adjusting the high-temperature gas flow rate in the conduction pipeline.

[0011] This precise adjustment can optimize heat recovery efficiency according to real-time temperature changes, making heat transfer faster and improving the energy efficiency of the entire heat pump system.

[0012] MEMS or piezoelectric ceramic drive units are used as micro-actuators. These technologies have the characteristics of high response speed and low power consumption, and can respond to control system signals within milliseconds.

[0013] This fast response feature enables the system to adapt to changes in hot air temperature, pressure and flow in real time, ensuring efficient heat exchange under different operating conditions.

[0014] The elastic sealing layer on the edge of the valve disc effectively reduces gas leakage, ensures that the airflow flows along the set path, and improves heat transfer efficiency.

[0015] Since the opening and closing of the valve disc is precisely controlled, heat energy loss caused by air flow fluctuations or pressure instability can be avoided, thereby improving the stability and reliability of the entire heat pump system.

[0016] This structure is linked with the control system and can adaptively adjust the air outlet opening through real-time data feedback (such as temperature, flow, etc.) to ensure that the hot air flow rate in the conduction duct is always in the optimal state.

[0017] Combined with adaptive algorithms, the working conditions of electronic expansion valves, compressors and fans are further optimized to reduce unnecessary energy consumption and achieve energy saving and consumption reduction.

[0018] Further, the variable guide module includes a guide plate, a rotating bracket and a motor, the rotating bracket is arranged in the conductive pipe, the guide plate is a high temperature resistant guide plate made of a lightweight material, the guide plate is arranged on the rotating bracket, and the motor is connected to the rotating bracket; The motor is electrically connected to the control system. The motor drives the guide plate to swing through the rotating bracket, thereby adjusting the angle of the guide plate relative to the pipeline axis to form a local contraction and streamline deflection area in the conduction pipeline, thereby prompting the high-temperature gas to transform from the original laminar flow to the local turbulent state.

[0019] Adjusting the angle of the guide plate relative to the axis of the conduction pipe can form a local contraction and streamline deflection area in the pipe, so that the original relatively stable laminar flow is transformed into a local turbulent flow. In the turbulent state, the contact and mixing between the gas and the pipe wall are more complete, thereby greatly improving the heat transfer efficiency and helping to transfer the heat energy of the high-temperature gas to the heat releaser more quickly.

[0020] The motor drives the rotating bracket to make the guide plate swing and adjust its angle in real time, thus realizing dynamic control of the airflow state. The device is electrically connected to the control system and can automatically adjust the position of the guide plate according to the real-time temperature and flow data, so that the system can maintain the best heat transfer state under different working conditions, thus improving the operating efficiency and stability of the entire heat pump energy-saving system.

[0021] By changing the high-temperature gas flow from laminar to turbulent, the heat recovery and transfer efficiency is improved, which can reduce the energy consumption of the system. At the same time, more efficient heat exchange means that the heat pump system does not have to work at high load for a long time to achieve the preheating effect, thereby extending the service life of the equipment and reducing energy loss.

[0022] Furthermore, it also includes an adaptive algorithm module, the control system includes a temperature sensor and a circuit board, the temperature sensors are respectively arranged in the air inlet, the exhaust port and the wind channel, and the temperature sensor is electrically connected to the circuit board; The adaptive algorithm module is electrically connected to the circuit board, and the adaptive algorithm module collects temperature data provided by the temperature sensor in real time, and dynamically adjusts the opening of the electronic expansion valve, the operating frequency of the compressor and the rotation speed of the first fan according to the temperature data; The micro-electromechanical control element is a sensor based on the piezoresistive effect or the thermopile principle.

[0023] The adaptive algorithm module can instantly reflect the system operation status by collecting temperature data provided by the temperature sensors in the air inlet, exhaust port and air duct in real time. Based on this data, the module dynamically adjusts the opening of the electronic expansion valve, the operating frequency of the compressor and the speed of the first fan, so that the system can quickly respond to load changes and always maintain the best operating state.

[0024] Dynamic regulation enables the heat pump system to accurately control the refrigerant flow and compressor operation according to the real-time temperature, thereby achieving the optimal temperature of the preheated air, enhancing the heat exchange effect between the condenser and the outside air, reducing energy consumption and improving the energy saving effect of the overall system.

[0025] The use of micro-electromechanical control elements based on the piezoresistive effect or thermopile principle ensures high precision and fast response of temperature measurement, thereby providing accurate data support for the adaptive algorithm, making the entire control link more reliable and refined, and further improving system stability and safety.

[0026] Through the close connection between the adaptive algorithm module, control system and circuit board, the entire heat pump energy-saving system realizes intelligent and automatic operation. Users can achieve efficient, stable and energy-saving heat recovery and utilization without frequent intervention, thereby reducing operation and maintenance costs.

[0027] The second object of the present invention is achieved by: An industrial drum dryer, further comprising a housing, a drum, a driving device and an emergency stop controller, wherein the housing is provided with the wind channel, the drum is arranged in the wind channel, the driving device is arranged in the housing and connected to the drum, the driving device is electrically connected to the control system, and the driving device drives the drum to rotate when it works; The housing is provided with a clothing inlet at a position corresponding to the drum, and a door panel is provided at a position corresponding to the clothing inlet, and the door panel opens or closes the clothing inlet; The emergency stop controller is arranged on the casing, the emergency stop controller is electrically connected to the circuit board, and the emergency stop controller disconnects the main power supply through the circuit board.

[0028] The emergency stop controller is electrically connected to the circuit board and can quickly disconnect the main power supply when an abnormal situation is detected to ensure the safety of the equipment and users.

[0029] The setting of the door panel effectively prevents misoperation or accidental opening of the clothing entrance when the equipment is running, thereby further improving operational safety.

[0030] The drum is arranged in the wind channel, and the driving device drives the drum to rotate to achieve efficient drying; The clothing entrance is designed to facilitate users to load and unload clothing, and the door panel can be opened and closed flexibly as needed, ensuring the normal operation of the equipment while facilitating user operation.

[0031] There is an air channel inside the casing to promote air flow, enhance the hot air transfer effect and ensure drying efficiency; The driving device is electrically connected to the control system to achieve precise control of the drum rotation and improve the system operation stability and energy-saving effect.

[0032] In summary, the design of this industrial tumble dryer ensures efficient drying and convenient operation of the equipment through reasonable configuration of the air duct, drive device, clothing inlet and emergency stop controller, and provides reliable protection in terms of safety. It has high overall performance and practical value.

[0033] The second object of the present invention can also be solved by the following technical measures: Furthermore, it also includes a lint collector for collecting lint particles in the high-temperature gas, the lint collector including a tray and a filter screen; A plurality of guide grooves for guiding fluff particles and a gathering area for guiding fluff particles are provided in the tray, and the guide grooves and the gathering area are communicated; The filter screen includes a coarse filter layer for intercepting larger particles of fluff and a fine filter layer for intercepting fine fluff and dust particles; The tray is detachably arranged on the casing and close to the exhaust port, the filter is detachably arranged on the casing, the inlet of the filter is connected to the tray, the outlet of the filter is connected to the inlet of the heat receiver, and the hot air passes through the tray and the filter into the heat receiver.

[0034] The tray and double-layer filter structure are adopted, and the tray is equipped with guide grooves and gathering areas, which can effectively guide and concentrate the fluff particles in the high-temperature gas. The coarse filter layer first intercepts larger particles, and the fine filter layer further intercepts fine fluff and dust, ensuring the cleanliness of the gas at the entrance of the heat receiver and avoiding the accumulation of fluff that leads to a decrease in heat exchange efficiency.

[0035] By timely collecting and intercepting fluff particles, it is possible to prevent the accumulation of fluff inside the device, reduce the risk of blockage or increased thermal resistance caused by dust accumulation, thereby extending the service life of the device and maintaining stable operation of the heat pump system. At the same time, the tray and filter are both detachable structures, which are easy to clean and replace regularly, reducing maintenance costs.

[0036] Effective fluff interception reduces the interference of impurities in the high-temperature gas, allowing the hot air to maintain a relatively stable flow state before entering the heat receiver, which is conducive to the subsequent formation of an ideal local turbulence state in the conduction pipe, improving heat transfer efficiency and achieving more efficient heat energy recovery and utilization.

[0037] Furthermore, it also includes an automatic fluff scraping device, a fluff blocking device and a fluff collecting bag, and the tray is provided with a fluff discharge outlet at the bottom position corresponding to the gathering area; The automatic fluff scraping device comprises a micro motor, a transmission assembly, a scraper and a weight sensor, wherein the scraper is arranged in a sliding manner in the gathering area of ​​the tray, the micro motor and the transmission assembly are arranged outside the tray, the transmission assembly is respectively connected to the micro motor and the scraper, and the micro motor is electrically connected to the circuit board; The weight sensor is arranged at the bottom of the accumulation area of ​​the tray and is located next to the fluff discharge outlet. When the weight sensor detects that the accumulated weight of the fluff reaches a predetermined threshold, the weight sensor transmits a detection signal to the circuit board, and the circuit board controls the operation of the micro motor. The micro motor drives the scraper to slide along the accumulation area of ​​the tray through the transmission assembly, and pushes the fluff to the fluff discharge outlet. The fluff blocking device includes a baffle and a cylinder, wherein the baffle is slidably arranged on the tray, the cylinder is arranged on the tray and connected to the baffle, the cylinder is electrically connected to the circuit board, the circuit board controls the cylinder to work, the cylinder drives the baffle to slide, and the baffle slides to open or close the fluff discharge port; The fluff collecting bag is detachably hung on the tray, and the inlet of the fluff collecting bag is connected to the fluff discharge outlet.

[0038] A weight sensor is used to monitor the accumulation of fluff in the tray in real time. When the accumulation reaches the preset threshold, the micro motor is automatically triggered, and the scraper is driven by the transmission component to slide along the accumulation area of ​​the tray, effectively pushing the fluff to the preset fluff discharge port, thereby achieving automatic and continuous cleaning, avoiding the impact of excessive accumulation of fluff on airflow and heat exchange efficiency, and reducing the frequency of manual maintenance.

[0039] The lint blocking device is intelligently controlled by a cylinder-driven baffle, which can open or close the lint outlet when needed according to the system status, ensuring that the scraped lint smoothly enters the lint collection bag suspended below and prevents uncleaned lint from re-entering the air duct or heat receiver, maintaining smooth internal airflow and stable heat exchange efficiency.

[0040] The lint collection bag is installed in a detachable manner, so that the collected lint can be easily processed and replaced regularly, effectively reducing equipment failures caused by lint blockage, thereby improving the overall operating stability and energy-saving effect of the system, while reducing maintenance costs.

[0041] Furthermore, it also includes a clothing cooling module, the clothing cooling module includes a cooling pipeline and a cold air nozzle, a second fan is arranged at the inlet of the cooling pipeline, the inlet of the cooling pipeline is close to the evaporator, the outlet of the cooling pipeline is connected to the cold air nozzle, the cold air nozzle is built with a one-way valve, the cold air nozzle is connected to the wind channel, and the outlet of the one-way valve is connected to the ventilation channel; The second fan is electrically connected to the circuit board. The control system starts the second fan 10 minutes before the heat pump system stops working. The second fan sucks the cold energy generated by the evaporator into the cooling pipeline for storage. When the heat pump system stops working, the second fan transmits the cold energy of the cooling pipeline into the wind channel along the cold air nozzle and the one-way valve to achieve rapid cooling of the clothes. The control system turns off the second fan 5 minutes after the heat pump system stops working.

[0042] By starting the second fan 10 minutes before the heat pump system stops working, the cold air generated by the evaporator is sucked into the cooling pipe for storage in advance, so that when the heat pump system stops working, it can still provide cold air quickly, achieving smoother and more efficient clothing cooling and avoiding the impact of high temperature residue on clothing and users.

[0043] This design uses the low-temperature cooling capacity of the heat pump system during operation to pre-store cooling capacity, avoiding direct loss of cooling capacity after the heat pump stops, thereby improving the energy utilization rate of the system, reducing cooling energy consumption, and improving the overall energy saving effect of the dryer.

[0044] The cold air nozzle is connected to the wind channel, and the flow direction of the cold air is controlled by a one-way valve to ensure that the cold air will not be lost in the opposite direction, thereby ensuring that the cooling air can enter the wind channel stably and directionally, improving the uniformity and effectiveness of cooling the clothes.

[0045] Through intelligent adjustment of the control system, the start and stop time of the second fan is precisely controlled, so that the cooling process and the drying process are seamlessly connected, avoiding energy waste or insufficient cooling caused by starting too early or too late, while reducing the need for user intervention, and improving the intelligence of the equipment and user experience.

[0046] Further, the clothing cooling module also includes a cold storage box, the cold storage box has a built-in semiconductor refrigeration sheet, the cold storage box has a cold air inlet and a cold air outlet, the cold air inlet is provided with a third fan and an air inlet valve, the cold air outlet is provided with a fourth fan and an air outlet valve, the semiconductor refrigeration sheet, the air inlet valve, the air outlet valve, the third fan and the fourth fan are electrically connected to the circuit board respectively; The cold air inlet of the cold storage box is connected to the outlet of the cooling pipeline, and the cold air outlet of the cold storage box is connected to the cold air nozzle; The control system starts the second and third fans and opens the air inlet valve 10 minutes before the heat pump system stops working. The second and third fans draw the cold air near the evaporator into the cold storage box through the cooling pipeline and the cold air inlet for storage. At the same time, the semiconductor refrigeration chip cools the cold air in the cold storage box. When the heat pump system stops working, the control system automatically closes the air inlet valve. If the control system detects that the temperature of the air duct exceeds the preset threshold, the control system starts the fourth fan and opens the air outlet valve. Under the action of the fourth fan, the cold air from the cold storage box enters the cold air nozzle and the one-way valve along the cold air outlet and is transmitted into the air duct, thereby reducing the temperature of the air duct.

[0047] When the heat pump system is still running, the second fan and the third fan work together to draw the low-temperature cold air near the evaporator into the cold storage box through the cooling pipe, and further cool it down through the semiconductor refrigeration plate, so that the cold air can be effectively stored, ensuring that low-temperature air can continue to be supplied after the heat pump is shut down.

[0048] The control system starts the fan and opens the air inlet valve 10 minutes before the heat pump system stops working to pre-collect cold air; after shutdown, the fourth fan is started and the air outlet valve is opened in real time according to the temperature of the air duct to transport the stored low-temperature cold air to the air duct, thereby achieving rapid cooling, reducing energy waste, and improving the overall system energy efficiency.

[0049] The cold storage box adopts an inner and outer box structure and a built-in semiconductor refrigeration chip to ensure the stability of the cold air storage temperature. When needed, it can quickly deliver low-temperature air through the cold air nozzle and one-way valve to effectively reduce the temperature of the air channel, ensure that the clothes are quickly cooled after drying, and prevent users from being scalded by high temperature.

[0050] The multi-stage fan and valve combination structure is linked with the intelligent control module to ensure stable cold air transmission direction and efficient and continuous cooling process. At the same time, the electrical connection of each component realizes remote monitoring and automatic adjustment, making the entire clothing cooling module highly reliable and easy to maintain.

[0051] Furthermore, the cold storage box includes an inner box and an outer box, and low thermal conductivity insulation material is filled or a vacuum layer is set between the inner box and the outer box. The inner wall of the inner box is covered with a reflective insulation film, and the semiconductor refrigeration plate is arranged on the outer surface of the side wall of the inner box in an embedded installation manner, and the cooling surface of the semiconductor refrigeration plate is tightly fitted to the inner wall of the inner box through a high thermal conductivity heat dissipation glue, a metal thermal interface material or a customized cooling substrate.

[0052] The use of low thermal conductivity insulation materials or the setting of a vacuum layer between the inner and outer boxes significantly reduces the transfer of heat through the box, ensuring that the cold storage box maintains a low temperature for a long time and improving the cold air storage effect.

[0053] The inner wall of the inner box is covered with reflective insulation film, which effectively reflects external radiant heat and further prevents heat intrusion.

[0054] The semiconductor refrigeration sheet is arranged on the outer surface of the side wall of the inner box in an embedded installation manner, so that the cold energy can be evenly distributed in the inner box, avoiding local temperature differences and ensuring more balanced cold air storage.

[0055] The cooling surface of the refrigeration chip is tightly fitted to the inner wall of the inner box through high thermal conductivity heat dissipation glue, metal thermal interface material or customized cooling substrate to ensure maximum heat transfer efficiency, reduce thermal resistance, and quickly transfer cold to the inner box.

[0056] This integrated design can not only effectively store low-temperature cold air, but also stably supply cold air when the heat pump system is shut down, thereby achieving rapid cooling and protecting equipment and user safety.

[0057] The combination of close thermal contact and excellent thermal insulation measures further reduces system energy consumption and improves the working efficiency and stability of the entire clothing cooling module.

[0058] The beneficial effects of the present invention are as follows: The present invention realizes effective recovery and recycling of waste heat by transmitting the high-temperature waste gas generated by the heat pump to the heat releaser through the heat receiver and the conduction pipe. By intelligently adjusting the airflow state using micro-electromechanical control elements, the surrounding air can be preheated before the hot air enters the condenser, thereby greatly reducing energy consumption and improving the overall system energy efficiency.

[0059] The present invention uses high-temperature hot air in the air channel to quickly dry the clothes, and then uses a specially designed clothing cooling module to quickly cool the clothes after drying. The clothing cooling module collects and stores low-temperature cold air near the evaporator in advance through the second fan and the cold storage box, and quickly transports cold air to the air channel through the cooling pipeline and cold air nozzle after the heat pump stops working, ensuring that the temperature of the clothes drops quickly and protecting the safety of users.

[0060] The present invention is equipped with a fluff collector that uses a tray and a layered filter screen structure. The guide grooves and the gathering area in the tray effectively guide the fluff particles into the filter screen, and the coarse filter layer and the fine filter layer respectively intercept large particles and fine fluff and dust. At the same time, the automatic fluff scraping device cooperates with the weight sensor to automatically scrape and collect the fluff, ensuring smooth internal airflow, unaffected heat exchange efficiency, and reducing maintenance frequency.

[0061] In the present invention, the control system collects temperature data of the air inlet, the air outlet and the air duct in real time through an adaptive algorithm module, and dynamically adjusts the opening of the electronic expansion valve, the operating frequency of the compressor and the speed of the first fan according to the changes, so as to achieve accurate and real-time system optimization. In addition, the micro-electromechanical control element (based on the piezoresistive effect or the thermopile principle) monitors and controls the airflow state to ensure the formation of local turbulence in the conduction pipeline, thereby improving the heat transfer efficiency and system stability.

[0062] The industrial tumble dryer of the present invention is also equipped with an emergency stop controller, a door panel, and an intelligent fluff collection and automatic cleaning device to ensure that the equipment can be quickly powered off when an abnormal situation occurs, protecting the equipment and the operator. In addition, the detachable structure design makes equipment maintenance and cleaning more convenient, reduces operating costs, and improves the safety of the overall system and user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0063] Figure 1 Schematic diagram of an industrial tumble dryer.

[0064] Figure 2 Another angle diagram of an industrial tumble dryer.

[0065] Figure 3 Schematic diagram of the separation of the tray, filter and casing of an industrial tumble dryer.

[0066] Figure 4 This is a schematic diagram showing the positional relationship between the heat recovery device and the wind channel.

[0067] Figure 5 Schematic diagram of a heat receiver.

[0068] Figure 6 Schematic diagram of the conduction pipeline.

[0069] Figure 7 A schematic diagram of a tray.

[0070] Figure 8 Schematic diagram of the clothing cooling module.

[0071] Fig. 9 This is the circuit schematic. DETAILED DESCRIPTION

[0072] The present invention will be further described below in conjunction with the accompanying drawings and embodiments: Example, combined with Figures 1 to 9 As shown, a heat pump energy-saving system includes at least two heat pump systems 2, a control system 6 and a heat recovery device 3, and also includes an air duct 1, wherein the air duct 1 is provided with an air inlet 11 and an air outlet 12, and a first fan 13 is provided at the air inlet 11; The heat pump system 2 includes a compressor 21, an evaporator 22, a condenser 23 and an electronic expansion valve, wherein the condenser 23 is close to the air inlet 11; The heat recovery device 3 includes a heat receiver 31, a conduction pipe 32 and a heat releaser 33. The heat receiver 31 is equipped with a micro-electromechanical control element 311. The heat receiver 31 is installed at the exhaust port 12. The conduction pipe 32 is equipped with an adjustable micro-valve 4 for adjusting the flow rate and a variable flow guide module 5 for adjusting the flow rate. The heat releaser 33 is close to the air inlet 11 and is located above the condenser 23. The heat receiver 31 and the heat releaser 33 are connected through the conduction pipe 32. The heat pump system 2, the first fan 13, the micro-electromechanical control element 311, the micro-valve 4 and the variable flow guide module 5 are electrically connected to the control system 6 respectively; When the heat pump system 2 is working, the condenser 23 heats the surrounding air to form hot air, which is guided by the first fan 13 to form hot air and enter the air channel 1 along the air inlet 11. Finally, the hot air is discharged to the exhaust port 12 and received by the heat receiver 31, which guides the hot air into the conduction pipe 32. At the same time, the micro-electromechanical control element 311 detects the hot air, and the micro-electromechanical control element 311 adjusts the microvalve 4 and the variable flow guide module 5 to increase the flow rate of the high-temperature gas in the conduction pipe 32 and form local turbulence in the pipe, so that the hot air is quickly transferred from the heat receiver 31 to the heat releaser 33; The heat releaser 33 releases hot air to the vicinity of the condenser 23 for preheating the air around the condenser 23. The condenser 23 heats the preheated air to quickly form hot air. The hot air is guided by the first fan 13 to form hot air and enters the wind channel 1 along the air inlet 11, and circulates repeatedly.

[0073] See also Figure 6, further, the adjustable microvalve 4 includes a valve body 41, a valve flap 42 and a micro-actuator 43, and the micro-actuator 43 is a piezoelectric ceramic drive unit or a MEMS actuator; The valve body 41 is disposed in the conducting pipe 32, and the valve body 41 is provided with an air outlet 411; The valve flap 42 is provided with an elastic sealing layer 421 , and the valve flap 42 is movably provided at the air outlet 411 of the valve body 41 for opening or closing the air outlet 411 ; The micro-actuator 43 is electrically connected to the control system 6 . The control system 6 sends a signal to the micro-actuator 43 . The micro-actuator 43 pushes the valve flap 42 to swing, adjusts the opening and closing degree of the air outlet, and changes the flow rate of the high-temperature gas in the conduction pipe 32 .

[0074] Further, the variable guide module 5 includes a guide plate 51, a rotating bracket 52 and a motor 53, the rotating bracket 52 is arranged in the conductive pipe 32, the guide plate 51 is a high temperature resistant guide plate 51 made of a lightweight material, the guide plate 51 is arranged on the rotating bracket 52, and the motor 53 is connected to the rotating bracket 52; The motor 53 is electrically connected to the control system 6. The motor 53 drives the guide plate 51 to swing through the rotating bracket 52, thereby adjusting the angle of the guide plate 51 relative to the pipeline axis to form a local contraction and streamline deflection area in the conductive pipeline 32, thereby promoting the high-temperature gas to change from the original laminar flow to the local turbulent state; Furthermore, it also includes an adaptive algorithm module 63, the control system 6 includes a temperature sensor 61 and a circuit board 62, the temperature sensor 61 is respectively arranged in the air inlet 11, the exhaust port 12 and the wind channel 1, and the temperature sensor 61 and the circuit board 62 are electrically connected; The adaptive algorithm module 63 is electrically connected to the circuit board 62, and the adaptive algorithm module 63 collects temperature data provided by the temperature sensor 61 in real time, and dynamically adjusts the opening of the electronic expansion valve, the operating frequency of the compressor 21 and the rotation speed of the first fan 13 according to the temperature data; The micro-electromechanical control element 311 is a sensor based on the piezoresistive effect or the thermopile principle.

[0075] An industrial drum dryer, further comprising a housing 7, a drum 71, a driving device 72 and an emergency stop controller 73, wherein the housing 7 is provided with the wind channel 1, the drum 71 is arranged in the wind channel 1, the driving device 72 is arranged in the housing 7 and connected to the drum 71, the driving device 72 is electrically connected to the control system 6, and the driving device 72 drives the drum 71 to rotate when it works; The housing 7 is provided with a clothing inlet 711 at a position corresponding to the drum 71, and a door panel 712 is provided at a position corresponding to the clothing inlet 711 of the housing 7, and the door panel 712 opens or closes the clothing inlet 711; The emergency stop controller 73 is disposed on the housing 7 , and the emergency stop controller 73 is electrically connected to the circuit board 62 . The emergency stop controller 73 disconnects the main power supply through the circuit board 62 .

[0076] See also Figure 7 , further comprising a fluff collector 8 for collecting fluff particles in the high-temperature gas, the fluff collector 8 comprising a tray 81 and a filter 82; The tray 81 is provided with a plurality of guide grooves 811 for guiding fluff particles and a collection area 812 for guiding fluff particles, and the guide grooves 811 and the collection area 812 are connected; The filter 82 includes a coarse filter layer 821 for intercepting larger particles of fluff and a fine filter layer 822 for intercepting fine fluff and dust particles; The tray 81 is detachably disposed on the casing 7 and close to the exhaust port 12, and the filter 82 is detachably disposed on the casing 7. The inlet of the filter 82 is connected to the tray 81, and the outlet of the filter 82 is connected to the inlet of the heat receiver 31. The hot air passes through the tray 81 and the filter 82 and enters the heat receiver 31.

[0077] Furthermore, it also includes an automatic fluff scraping device 9, a fluff blocking device 10 and a fluff collecting bag 100, and the tray 81 has a fluff discharge outlet 813 at the bottom position corresponding to the gathering area; The automatic fluff scraping device 9 includes a micro motor 91, a transmission assembly 92, a scraper 93 and a weight sensor 94. The scraper 93 is slidably arranged in the gathering area 812 of the tray 81. The micro motor 91 and the transmission assembly 92 are arranged outside the tray 81. The transmission assembly 92 is respectively connected to the micro motor 91 and the scraper 93. The micro motor 91 is electrically connected to the circuit board 62. The weight sensor 94 is arranged at the bottom of the accumulation area 812 of the tray 81 and is located next to the fluff discharge outlet 813. When the weight sensor 94 detects that the accumulated weight of the fluff reaches a predetermined threshold, the weight sensor 94 transmits a detection signal to the circuit board 62. The circuit board 62 controls the micro motor 91 to work. The micro motor 91 drives the scraper 93 to slide along the accumulation area 812 of the tray 81 through the transmission assembly 92, and pushes the fluff to the fluff discharge outlet 813. The fluff blocking device 10 includes a baffle 101 and a cylinder 102. The baffle 101 is slidably disposed on the tray 81. The cylinder 102 is disposed on the tray 81 and connected to the baffle 101. The cylinder 102 is electrically connected to the circuit board 62. The circuit board 62 controls the cylinder 102 to work. The cylinder 102 drives the baffle 101 to slide. The baffle 101 slides to open or close the fluff discharge port 813. The fluff collecting bag 100 is detachably suspended on the tray 81 , and the inlet of the fluff collecting bag 100 is connected to the fluff discharge outlet 813 .

[0078] See also Figure 8 , further comprising a clothing cooling module 20, the clothing cooling module 20 comprising a cooling pipeline 201 and a cold air nozzle 202, a second fan 203 is arranged at the inlet of the cooling pipeline 201, the inlet of the cooling pipeline 201 is close to the evaporator 22, the outlet of the cooling pipeline 201 is connected to the cold air nozzle 202, the cold air nozzle 202 is built with a one-way valve 204, the cold air nozzle 202 is connected to the air channel 1, and the outlet of the one-way valve 204 is connected to the ventilation channel 1; The second fan 203 is electrically connected to the circuit board 62. The control system 6 starts the second fan 203 10 minutes before the heat pump system 2 stops working. The second fan 203 sucks the cold energy generated by the evaporator 22 into the cooling pipeline 201 for storage. When the heat pump system 2 stops working, the second fan 203 transmits the cold energy of the cooling pipeline 201 into the wind channel 1 along the cold air nozzle 202 and the one-way valve 204, so as to achieve rapid cooling of the clothes. The control system 6 turns off the second fan 203 5 minutes after the heat pump system 2 stops working.

[0079] See also Figure 8 Further, the clothing cooling module 20 also includes a cold storage box 30, the cold storage box 30 has a built-in semiconductor cooling sheet 301, the cold storage box 30 has a cold air inlet 302 and a cold air outlet 303, the cold air inlet 302 is provided with a third fan 304 and an air inlet valve 305, the cold air outlet 303 is provided with a fourth fan 306 and an air outlet valve 307, the semiconductor cooling sheet 301, the air inlet valve 305, the air outlet valve 307, the third fan 304 and the fourth fan 306 are respectively electrically connected to the circuit board 62; The cold air inlet 302 of the cold storage box 30 is connected to the outlet of the cooling pipeline 201 , and the cold air outlet 303 of the cold storage box 30 is connected to the cold air nozzle 202 .

[0080] Furthermore, a connecting pipeline 200 is additionally provided between the cold air outlet 303 of the cold storage box 30 and the cold air nozzle 202 , one end of the connecting pipeline 200 is connected to the cold air outlet 303 , and the other end of the connecting pipeline 200 is connected to the cold air nozzle 202 .

[0081] The control system 6 starts the second fan 203 and the third fan 304 and opens the air inlet valve 305 10 minutes before the heat pump system 2 stops working. The second fan 203 and the third fan 304 suck the cold air near the evaporator 22 into the cold storage box 30 through the cooling pipeline 201 and the cold air inlet 302 for storage. At the same time, the semiconductor refrigeration sheet 301 cools the cold air in the cold storage box 30. When the heat pump system 2 stops working, the control system 6 automatically closes the air inlet valve 305. If the control system 6 detects that the temperature of the air duct 1 exceeds the preset threshold, the control system 6 starts the fourth fan 306 and opens the air outlet valve 307. Under the action of the fourth fan 306, the cold air from the cold storage box 30 flows along the cold air outlet 303, the connecting pipeline 200, the cold air nozzle 202, and the one-way valve 204 into the air duct 1, thereby reducing the temperature of the air duct 1.

[0082] Furthermore, the cold storage box 30 includes an inner box 308 and an outer box 309, and low thermal conductivity insulation material is filled or a vacuum layer 40 is set between the inner box 308 and the outer box 309. The inner wall of the inner box 308 is covered with a reflective insulation film 401, and the semiconductor refrigeration plate 301 is arranged on the outer surface of the side wall of the inner box 308 in an embedded installation manner, and the cooling surface of the semiconductor refrigeration plate 301 is tightly fitted to the inner wall of the inner box 308 through a high thermal conductivity heat dissipation glue, a metal thermal interface material or a customized cooling substrate.

[0083] The condenser 23 in the heat pump system 2 is located near the air inlet 11 of the casing 7. When the compressor 21, the evaporator 22, the condenser 23 and the electronic expansion valve work together, the condenser 23 heats the surrounding air to form high-temperature hot air.

[0084] The first fan 13 guides the external air into the wind channel 1, so that the hot air flows evenly through the rotating drum 71 disposed in the wind channel 1, thereby rapidly evaporating the moisture in the clothes and achieving efficient drying.

[0085] The hot air generated during the drying process is discharged from the air duct 1 and is captured by the heat receiver 31 installed at the exhaust port 12 .

[0086] The built-in micro-electromechanical control element 311 (based on the piezoresistive effect or the thermopile principle) detects the hot air temperature and automatically adjusts the adjustable micro-valve 4 and the variable flow guide module 5 embedded in the conduction pipe 32 to increase the flow velocity of the high-temperature gas in the pipe and form local turbulence.

[0087] The hot air in the turbulent state is quickly transferred to the heat releaser 33 located above the air inlet 11 and above the condenser 23. The released heat preheats the air around the condenser 23, forming an energy recovery closed loop, thereby reducing the overall energy consumption of the system.

[0088] This method collects and stores low-temperature cold air in advance, and quickly delivers it to the air duct 1 after the heat pump system 2 stops working, so as to achieve rapid cooling of clothes. The specific steps are as follows: Pre-collection and storage phase a. During operation of the heat pump system 2, the low-temperature cold air generated by the evaporator 22 is sucked into the cooling pipeline 201 through the second fan 203 installed at the inlet of the cooling pipeline 201.

[0089] b. The inlet of the cooling line 201 is close to the evaporator 22 , and the collected low-temperature cold air is transported along the pipeline to the outlet of the cooling line 201 , and the outlet of the cooling line 201 is connected to the cold air inlet 302 of the cold storage box 30 .

[0090] c. At the same time, the cold air inlet 302 of the cold storage box 30 is equipped with a third fan 304 and an air inlet valve 305. The third fan 304 draws the low-temperature cold air in the cooling line 201 into the cold storage box 30 for storage.

[0091] d. The cold storage box 30 has a built-in semiconductor refrigeration sheet 301, which is arranged in an embedded manner on the outer surface of the side wall of the inner box 308. Its cooling surface is tightly fitted to the inner wall of the inner box 308 through high thermal conductivity heat dissipation glue, metal thermal interface material or customized cooling substrate, effectively further reducing the temperature of the stored cold air.

[0092] e. The control system 6 starts the second fan 203 and the third fan 304 10 minutes before the heat pump system 2 stops working, and opens the air inlet valve 305 to collect and store low-temperature cold air in advance.

[0093] Cooling start phase When the heat pump system 2 stops working, the control system 6 automatically closes the air inlet valve 305 of the cold storage box 30 to prevent the entry of hot air from the outside.

[0094] b. If the control system 6 detects that the temperature of the air duct 1 exceeds the preset safety threshold, the fourth fan 306 is started and the air outlet valve 307 at the cold air outlet 303 of the cold storage box 30 is opened.

[0095] c. The cold air outlet 303 of the cold storage box 30 is connected to the inlet of the cooling line 201 . At this time, the fourth fan 306 pushes the low-temperature cold air stored in the cold storage box 30 and delivers it to the cold air nozzle 202 through the cooling line 201 .

[0096] Cold air delivery and clothing cooling stage The outlet of the cooling line 201 is connected to the cold air nozzle 202 equipped with a one-way valve 204, and the one-way valve 204 ensures that the low-temperature cold air enters the wind channel 1 only in a predetermined direction.

[0097] b. The cold air nozzle 202 introduces low-temperature cold air into the wind channel 1, which quickly mixes with the hot air in the wind channel 1, causing the surface temperature of the clothes in the drum 71 to drop rapidly.

[0098] c. The control system 6 automatically turns off the second fan 203 5 minutes after the heat pump stops working, ensuring that the cooling process is completed in a short time while maintaining efficient use of energy.

[0099] The method collects and stores low-temperature cold air in advance during the operation of the heat pump system 2, and uses the semiconductor refrigeration sheet 301 to further reduce the storage temperature, ensuring that continuous and sufficient low-temperature cold air can still be provided after the heat pump is shut down, thereby achieving rapid cooling of clothing.

[0100] The linkage control of the multi-stage fan and valves (the air inlet valve 305, the air outlet valve 307 and the one-way valve 204) ensures that the cold air is directional-delivered to the air channel 1, avoids the problem of uneven mixing of cold air and hot air, and improves the cooling efficiency.

[0101] The precise timing control of the intelligent control system 6 (such as starting pre-collection 10 minutes in advance and turning off the fan 5 minutes after shutdown) makes the cooling process efficient and stable, ensuring user safety while reducing energy consumption.

[0102] Efficient interception and automatic cleanup: During the drying process, the fluff particles carried by the high-temperature hot air are guided through the exhaust port 12 to the fluff collector 8 arranged at the location.

[0103] The fluff collector 8 is composed of a tray 81 and a double-layer filter screen 82. The tray 81 is provided with a guide groove 811 and a gathering area 812 to guide and concentrate the fluff. The outer layer of the filter screen 82 is a coarse filter layer 821 to retain large particles of fluff, and the inner layer is a fine filter layer 822 to intercept fine fluff and dust.

[0104] When the weight sensor 94 (installed at the bottom of the accumulation area 812 of the tray 81 , near the fluff discharge outlet 813 ) detects that the fluff accumulation reaches a preset threshold, the control system 6 triggers the automatic fluff scraping device 9 through the circuit board 62 .

[0105] The micro motor 91 drives the transmission assembly 92 and the scraper 93 to slide along the gathering area 812 of the tray 81, pushing the fluff to the preset fluff discharge outlet 813, and then the fluff blocking device 10 (controlled by the baffle 101 and the cylinder 102) adjusts the opening and closing to ensure that the fluff smoothly enters the suspended fluff collection bag 100, realizing automatic collection and cleaning, and reducing maintenance workload.

[0106] Real-time monitoring and dynamic adjustment: Multiple temperature sensors 61 in the system are respectively arranged at the air inlet 11, the exhaust port 12, the wind channel 1 and other key locations, and their data are collected in real time by the circuit board 62 of the control system 6 and the integrated adaptive algorithm module 63.

[0107] The adaptive algorithm module 63 uses these data to dynamically adjust the opening of the electronic expansion valve, the operating frequency of the compressor 21, and the rotation speed of the first fan 13 (and the second fan 203, the third fan 304, and the fourth fan 306), ensuring that each component always operates in the best condition, thereby ensuring the drying and cooling efficiency and minimizing energy consumption.

[0108] Through the closed-loop heat exchange system composed of the heat receiver 31, the conduction pipe 32 and the heat releaser 33, the waste heat in the drying process is recovered and reused, which not only preheats the air entering the condenser 23, but also assists the clothing cooling module 20 in providing cold air, further improving the overall energy efficiency and environmental protection of the system.

[0109] In this embodiment, the heat pump energy-saving system uses at least two heat pump systems 2, the condenser 23 is arranged near the air inlet 11 of the housing 7, and the speed of the first fan 13 is controlled within the range of 1200 to 1500 rpm to ensure the formation of sufficient hot air; The micro-electromechanical control element 311 adopts a piezoelectric ceramic drive unit with a response time of less than 10 milliseconds. Its built-in sensor based on the piezoresistive effect or the thermopile principle has an accuracy of ±0.5°C, and collects temperature data of the air inlet 11, the exhaust port 12 and the wind channel 1 in real time to dynamically adjust the opening of the electronic expansion valve (adjustable from 0 to 100%), the operating frequency of the compressor 21 and the speed of the first fan 13.

[0110] The high temperature resistant lightweight guide plate 51 in the variable guide module 5 is installed on the rotating bracket 52, and its adjustment angle can be within the range of 0° to 45°. It is driven by a micro motor 91 electrically connected to the control system 6, thereby forming a local contraction and streamline deflection area in the conduction pipe 32, so that the original laminar state is converted into local turbulence, thereby improving the heat transfer efficiency.

[0111] The clothing cooling module 20 is provided with a second fan 203 (rotation speed 1000-1300 rpm) and a cooling pipeline 201, whose inlet is close to the evaporator 22. The control system 6 starts the second fan 203 10 minutes before the heat pump system 2 stops working, sucks the low-temperature cold air generated by the evaporator 22 into the cooling pipeline 201 for storage, and runs for at least 5 minutes after the system stops, and stably transmits the cold air into the wind channel 1 through the built-in one-way valve 204, so as to achieve rapid cooling of the clothing.

[0112] To further enhance the cold air storage, the system is also provided with a cold storage box 30, and a low thermal conductivity insulation material or a vacuum layer 40 is filled between the inner and outer boxes 309 to achieve a thermal insulation effect with a thermal conductivity lower than 0.001 W / (m·K). The volume of the inner box 308 is about 20 liters, and the inner wall is covered with a reflective heat insulation film 401; At the same time, the semiconductor cooling sheet 301 is evenly arranged on the outer surface of the side wall of the inner box 308 in an embedded installation manner, and its cooling surface is tightly fitted to the inner wall of the inner box 308 through high thermal conductivity heat dissipation glue, metal thermal interface material or customized cooling substrate, further reducing the cold air temperature.

[0113] The overall system achieves precise control through the intelligent adaptive algorithm module 63, ensuring that after the clothes are quickly dried, the system operates efficiently by utilizing the recovered heat energy and pre-stored cold energy, thus achieving efficient energy utilization while ensuring user safety and equipment stability.

[0114] In this embodiment, in order to realize automatic control and timely trigger corresponding functions, two key threshold parameters are set, which are used to judge the accumulation of fluff and the excessive temperature of the air duct. The specific range and setting method are as follows:

[0115] The predetermined threshold value of the accumulated weight of the fluff in the tray is set between about 80 grams and 120 grams. In this embodiment, the optimal reference value is 100 grams (with an error range of ±20 grams).

[0116] A weight sensor similar to an electronic scale is used to ensure that its output voltage or digital signal has a linear correspondence with the actual weight.

[0117] During the system calibration phase, the correction coefficient between the actual weight and the sensor output is obtained through multiple sampling, and then the target signal corresponding to 100 grams is stored in the control system program.

[0118] When the cumulative fluff weight signal detected by the weight sensor 94 reaches or exceeds the target signal (i.e., a voltage range corresponding to approximately 100 grams, with a fluctuation of ±10%-20% allowed), the control system 6 triggers the automatic fluff scraping device 9 to start, thereby discharging the fluff out of the tray 81, maintaining smooth airflow in the system and preventing a decrease in heat exchange efficiency.

[0119] The preset threshold value of the temperature of the air duct 1 is set between about 40°C and 50°C. In this embodiment, the optimal setting value is 45°C (with an error range of ±5°C).

[0120] A plurality of temperature sensors 61 (with an accuracy of approximately ±0.5°C) are arranged in the air duct 1 . These temperature sensors 61 collect temperature data through analog-to-digital conversion and transmit the data to the control system 6 .

[0121] During the system calibration phase, the output of the temperature sensor 61 is statistically analyzed and 45° C. is determined to be the most appropriate cooling start point to avoid scalding the user due to high temperature.

[0122] The control system 6 compares the real-time temperature data with the set threshold value. When it is detected that the temperature of the air duct 1 exceeds 45°C (the acceptable range is 40°C to 50°C), the fourth fan 306 is automatically started and the air outlet valve 307 is opened to release low-temperature cold air from the cold storage box 30 into the air duct 1 to quickly reduce the temperature.

[0123] The terms first, second, etc. used in the present invention do not indicate any order, quantity or importance, but are only used for distinction.

[0124] As used in the present invention, the terms "one", "a", etc. do not indicate a limit on quantity, but indicate the existence of at least one of the mentioned objects. As used in the present invention, the terms "top", "bottom", "side", "longitudinal", "lateral", "middle", "center", "outside", "inside", "horizontal", "vertical", "left", "right", "upper", "lower", etc." indicate relative positions, not absolute positions.

[0125] The above-mentioned embodiments only express several implementation methods of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the patent of the present invention. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. A heat pump energy-saving system, comprising at least two heat pump systems, a control system and a heat recovery device, characterized in that: It also includes an air channel, the air channel is provided with an air inlet and an air outlet, and a first fan is provided at the air inlet; The heat pump system comprises a compressor, an evaporator, a condenser and an electronic expansion valve, wherein the condenser is close to the air inlet; The heat recovery and utilization device comprises a heat receiver, a conduction pipe and a heat releaser, wherein the heat receiver is equipped with a micro-electromechanical control element, the heat receiver is installed at the exhaust port, the conduction pipe is equipped with an adjustable micro-valve for adjusting the flow rate and a variable flow guide module for adjusting the flow rate, the heat releaser is close to the air inlet and located above the condenser, and the heat receiver and the heat releaser are connected through the conduction pipe; The heat pump system, the first fan, the micro-electromechanical control element, the micro-valve and the variable flow guide module are electrically connected to the control system respectively; When the heat pump system is working, the condenser heats the surrounding air to form hot air, which is guided by the first fan to form hot air and enter the wind channel along the air inlet. Finally, the hot air is discharged to the exhaust port and received by the heat receiver, which guides the hot air into the conduction pipe. At the same time, the micro-electromechanical control element detects the hot air, and the micro-electromechanical control element adjusts the microvalve and the variable flow guide module to increase the flow rate of the high-temperature gas in the conduction pipe and form local turbulence in the pipe, so that the hot air is quickly transferred from the heat receiver to the heat releaser; The heat releaser releases hot air around the condenser to preheat the air around the condenser. The condenser heats the preheated air to quickly form hot air. The hot air is guided by the first fan to form hot air and enters the wind channel along the air inlet, circulating repeatedly.

2. The heat pump energy-saving system according to claim 1, characterized in that: The adjustable microvalve comprises a valve body, a valve flap and a micro-actuator, wherein the micro-actuator is a piezoelectric ceramic drive unit or a MEMS actuator; The valve body is arranged in the conducting pipe, and the valve body is provided with an air outlet; The valve flap is provided with an elastic sealing layer, and the valve flap is movably arranged at the air outlet of the valve body for opening or closing the air outlet; The micro-actuator is electrically connected to a control system. The control system sends a signal to the micro-actuator. The micro-actuator pushes the valve flap to swing, adjusts the opening and closing degree of the air outlet, and changes the flow rate of the high-temperature gas in the conduction pipeline.

3. The heat pump energy-saving system according to claim 1, characterized in that: The variable flow guide module comprises a flow guide plate, a rotating bracket and a motor, wherein the rotating bracket is arranged in the conducting pipe, the flow guide plate is a high temperature resistant flow guide plate made of a lightweight material, the flow guide plate is arranged on the rotating bracket, and the motor is connected to the rotating bracket; The motor is electrically connected to the control system. The motor drives the guide plate to swing through the rotating bracket, thereby adjusting the angle of the guide plate relative to the pipeline axis to form a local contraction and streamline deflection area in the conduction pipeline, thereby prompting the high-temperature gas to transform from the original laminar flow to the local turbulent state.

4. The heat pump energy-saving system according to claim 1, characterized in that: It also includes an adaptive algorithm module, the control system includes a temperature sensor and a circuit board, the temperature sensors are respectively arranged in the air inlet, the exhaust port and the wind channel, and the temperature sensor is electrically connected to the circuit board; The adaptive algorithm module is electrically connected to the circuit board, and the adaptive algorithm module collects temperature data provided by the temperature sensor in real time, and dynamically adjusts the opening of the electronic expansion valve, the operating frequency of the compressor and the rotation speed of the first fan according to the temperature data; The micro-electromechanical control element is a sensor based on the piezoresistive effect or the thermopile principle.

5. An industrial tumble dryer using the heat pump energy-saving system according to any one of claims 1 to 4, characterized in that: It also includes a casing, a drum, a driving device and an emergency stop controller, wherein the casing is provided with the wind channel, the drum is arranged in the wind channel, the driving device is arranged in the casing and connected to the drum, the driving device is electrically connected to the control system, and the driving device drives the drum to rotate when it works; The housing is provided with a clothing inlet at a position corresponding to the drum, and a door panel is provided at a position corresponding to the clothing inlet, and the door panel opens or closes the clothing inlet; The emergency stop controller is arranged on the casing, the emergency stop controller is electrically connected to the circuit board, and the emergency stop controller disconnects the main power supply through the circuit board.

6. The industrial tumble dryer according to claim 5, characterized in that: Also included is a lint collector for collecting lint particles in the high-temperature gas, the lint collector comprising a tray and a filter screen; A plurality of guide grooves for guiding fluff particles and a gathering area for guiding fluff particles are provided in the tray, and the guide grooves and the gathering area are communicated; The filter screen includes a coarse filter layer for intercepting larger particles of fluff and a fine filter layer for intercepting fine fluff and dust particles; The tray is detachably arranged on the casing and close to the exhaust port, the filter is detachably arranged on the casing, the inlet of the filter is connected to the tray, the outlet of the filter is connected to the inlet of the heat receiver, and the hot air passes through the tray and the filter into the heat receiver.

7. The industrial tumble dryer according to claim 6, characterized in that: It also includes an automatic fluff scraping device, a fluff blocking device and a fluff collecting bag, and the tray is provided with a fluff discharge outlet at the bottom corresponding to the gathering area; The automatic fluff scraping device comprises a micro motor, a transmission assembly, a scraper and a weight sensor, wherein the scraper is arranged in a sliding manner in the gathering area of ​​the tray, the micro motor and the transmission assembly are arranged outside the tray, the transmission assembly is respectively connected to the micro motor and the scraper, and the micro motor is electrically connected to the circuit board; The weight sensor is arranged at the bottom of the accumulation area of ​​the tray and is located next to the fluff discharge outlet. When the weight sensor detects that the accumulated weight of the fluff reaches a predetermined threshold, the weight sensor transmits a detection signal to the circuit board, and the circuit board controls the operation of the micro motor. The micro motor drives the scraper to slide along the accumulation area of ​​the tray through the transmission assembly, and pushes the fluff to the fluff discharge outlet. The fluff blocking device includes a baffle and a cylinder, wherein the baffle is slidably arranged on the tray, the cylinder is arranged on the tray and connected to the baffle, the cylinder is electrically connected to the circuit board, the circuit board controls the cylinder to work, the cylinder drives the baffle to slide, and the baffle slides to open or close the fluff discharge port; The fluff collecting bag is detachably hung on the tray, and the inlet of the fluff collecting bag is connected to the fluff discharge outlet.

8. The industrial tumble dryer according to claim 5, characterized in that: It also includes a clothing cooling module, the clothing cooling module includes a cooling pipeline and a cold air nozzle, a second fan is arranged at the inlet of the cooling pipeline, the inlet of the cooling pipeline is close to the evaporator, the outlet of the cooling pipeline is connected to the cold air nozzle, a one-way valve is built in the cold air nozzle, the cold air nozzle is connected to the wind channel, and the outlet of the one-way valve is connected to the ventilation channel; The second fan is electrically connected to the circuit board. The control system starts the second fan 10 minutes before the heat pump system stops working. The second fan sucks the cold energy generated by the evaporator into the cooling pipeline for storage. When the heat pump system stops working, the second fan transmits the cold energy of the cooling pipeline into the wind channel along the cold air nozzle and the one-way valve to achieve rapid cooling of the clothes. The control system turns off the second fan 5 minutes after the heat pump system stops working.

9. The industrial tumble dryer according to claim 8, characterized in that: The clothing cooling module also includes a cold storage box, the cold storage box has a built-in semiconductor cooling chip, the cold storage box has a cold air inlet and a cold air outlet, the cold air inlet is provided with a third fan and an air inlet valve, the cold air outlet is provided with a fourth fan and an air outlet valve, the semiconductor cooling chip, the air inlet valve, the air outlet valve, the third fan and the fourth fan are electrically connected to the circuit board respectively; The cold air inlet of the cold storage box is connected to the outlet of the cooling pipeline, and the cold air outlet of the cold storage box is connected to the cold air nozzle; The control system starts the second and third fans and opens the air inlet valve 10 minutes before the heat pump system stops working. The second and third fans draw the cold air near the evaporator into the cold storage box through the cooling pipeline and the cold air inlet for storage. At the same time, the semiconductor refrigeration chip cools the cold air in the cold storage box. When the heat pump system stops working, the control system automatically closes the air inlet valve. If the control system detects that the temperature of the air duct exceeds the preset threshold, the control system starts the fourth fan and opens the air outlet valve. Under the action of the fourth fan, the cold air from the cold storage box enters the cold air nozzle and the one-way valve along the cold air outlet and is transmitted into the air duct, thereby reducing the temperature of the air duct.

10. The industrial tumble dryer according to claim 9, characterized in that: The cold storage box includes an inner box and an outer box, and low thermal conductivity insulation material is filled or a vacuum layer is set between the inner box and the outer box. The inner wall of the inner box is covered with a reflective insulation film, and the semiconductor refrigeration plate is arranged on the outer surface of the side wall of the inner box in an embedded installation manner, and the cooling surface of the semiconductor refrigeration plate is tightly fitted to the inner wall of the inner box through high thermal conductivity heat dissipation glue, metal thermal interface material or customized cooling substrate.

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