Improved heat pump system with heating and cooling functions and automatic wine steaming equipment

Abstract

The invention relates to the field of heat pump systems, in particular to an improved heat pump system with heating and cooling functions and automatic liquor steaming equipment, which comprises heat pump equipment, a condensing device, a flash tank, a cold storage tank, a water pump, a steam secondary heating device and an intelligent control system, the heat pump assembly comprises a compressor, an evaporator, a condenser and an expansion valve, the compressor, the evaporator and the condenser are connected with the expansion valve, and the compressor is provided with a variable frequency driving module for adjusting the rotating speed of the compressor in real time; the flash tank is provided with a second circulating water inlet and a first steam port, the condenser is arranged in the flash tank, and a first temperature sensor is arranged in the flash tank; according to the system, the heating mode and the refrigerating mode can be flexibly switched on the same equipment platform, the overall performance coefficient of the system is remarkably improved, the instantaneous peak load is reduced through energy storage and waste heat recovery of the honeycomb phase change material module, and therefore the average energy consumption is reduced by 10% or above.

Description

Technical Field

[0001] The invention relates to the field of heat pump systems, and particularly to an improved heat pump system with heating and cooling functions and an automatic wine distilling device. Background Art

[0002] With the continuous growth of the demand for building energy conservation and clean heating, heat pump technology has been widely used due to its advantages such as high energy efficiency ratio and low pollution emissions. Heat pump systems include air-source heat pumps, ground-source heat pumps, water-source heat pumps, etc. They can achieve the transfer of heat between two temperature levels of cold and heat through key components such as compressors, evaporators, condensers, and expansion valves. When a typical heat pump switches between the refrigeration or heating modes, it often needs to switch the system circulation loop, resulting in a complex system structure, a long control logic, and it is difficult to achieve ideal energy efficiency levels in both the cold and hot modes.

[0003] In the prior art, in order to meet the requirements for refrigeration and heating respectively, some solutions adopt additional cold storage or heat storage devices, but mostly use simple water tanks or mineral heat storage bodies, which have low energy storage density, large volume, and slow response speed, and it is difficult to meet the instantaneous cold and heat load fluctuations of buildings. In addition, the technology of using steam reheating to increase the system output temperature is relatively mature, but most existing devices adopt a single boiler heating method, lacking deep integration with the multi-stage cycle of the heat pump, resulting in an increase in the overall system regulation difficulty and high energy consumption.

[0004] In addition, the heat exchange between the condensation side of domestic and foreign heat pump systems and the environment or external water source mostly uses plate-type or shell-and-tube heat exchangers. However, limited by the heat exchange area configuration and heat exchange channel design, the heat exchange efficiency and flow control accuracy of the system are insufficient, and it is difficult to achieve real-time precise regulation and coordination of the flow rate and temperature of the external water source. At the same time, the vast majority of heat pump systems rely only on traditional fixed-frequency compressors and simple on-off valve pipelines for control, and cannot adjust the compressor speed according to the load change, resulting in problems such as frequent start-stop, uneven circulation, and energy waste in some working conditions.

[0005] In summary, there are still many deficiencies in the existing heat pump systems in terms of multi-functional integration, energy storage efficiency, heat exchange regulation, and intelligent management. Summary of the Invention

[0006] The first object of the invention is to provide an improved heat pump system with heating and cooling functions that has high energy efficiency, reduces energy consumption and operating costs.

[0007] The second object of the invention is to provide an automatic wine distilling device that has high energy efficiency, reduces energy consumption and operating costs.

[0008] The first object of the invention is achieved as follows: An improved heat pump system with heating and cooling functions, comprising a heat pump device, a condensation device, a flash tank, a cold storage tank, a water pump, a steam secondary heating device and an intelligent control system. The heat pump device includes at least one group of heat pump components, and each heat pump component includes a compressor, an evaporator, an expansion valve and a condenser connected in sequence. The compressor is provided with a variable frequency drive module for real-time adjustment of the compressor speed; the flash tank is provided with a second circulating water inlet and a first steam port, the condenser is placed inside the flash tank, and a first temperature sensor is arranged inside the flash tank; the cold storage tank is provided with a third circulating water inlet and a fourth circulating water outlet, the evaporator is placed inside the cold storage tank, and a plurality of honeycomb phase change material units are embedded around the inner part of the cold storage tank and the coil of the evaporator. A second temperature sensor is arranged inside the cold storage tank; the condensation device includes a heat exchange tank, and a heat exchange tube is arranged inside the heat exchange tank. A heat exchange channel is formed between the inner wall of the heat exchange tank and the outer wall of the heat exchange tube. The upper end of the heat exchange tube extends out of the heat exchange tank to form a cooling inlet, and the lower end of the heat exchange tube extends out of the heat exchange tank to form a cooling outlet. An external water source inlet, a first circulating water inlet and a first circulating water outlet communicating with the heat exchange channel are opened on the outer wall of the heat exchange tank. A third temperature sensor is arranged inside the heat exchange tube; flow sensors are arranged at both the external water source inlet and the first circulating water inlet, and an electronic control valve for controlling the opening degree of the external water source inlet is arranged at the external water source inlet; the inlet of the water pump is communicated with the first circulating water outlet, one path of the outlet of the water pump is communicated with the second circulating water inlet, and the other path of the outlet of the water pump is communicated with the third circulating water inlet. The fourth circulating water outlet is communicated with the first circulating water inlet; the steam secondary heating device includes a boiler, a heating tube and a fourth temperature sensor. The heating tube is arranged inside the boiler cavity. The boiler is provided with a steam secondary heating inlet and a steam secondary heating outlet. The fourth temperature sensor is arranged inside the boiler cavity and close to the steam secondary heating outlet; the first steam port is communicated with the steam secondary heating inlet, and the steam secondary heating outlet discharges hot steam for heating; the compressor, the heating tube, the water pump, the first temperature sensor, the second temperature sensor, the third temperature sensor, the fourth temperature sensor, the flow sensor, the electronic control valve and the variable frequency drive module are respectively connected to the intelligent control system.

[0009] The improved heat pump system of the present invention organically integrates the heat pump main cycle, flash separation, secondary steam heating, microchannel condensation and phase change cold storage, and uses an intelligent control system to perform real-time closed-loop adjustment on the compressor frequency, boiler power, water pump flow rate and electronic valve opening degree, realizing the cascade utilization and peak-shifting scheduling of heat energy and cold energy. Compared with traditional single boiler or heat pump systems, this system can flexibly switch between heating and cooling modes on the same equipment platform, significantly improving the overall performance coefficient (COP) of the system, and reducing the instantaneous peak load through the energy storage of the honeycomb phase change material module and waste heat recovery, thereby achieving a reduction in average energy consumption of more than 10%.

[0010] Multi-point temperature and flow sensing monitoring not only ensures the optimal temperature difference and flow rate in each heat exchange link, but also enables the system to accurately lock in the steam temperature and cooling water temperature required by the process, reducing overshoot and oscillation, and improving the operational stability and product quality consistency. In addition, the intelligent response to the peak-valley electricity price signal and the strategy of storing cold at night and releasing cold during the day further reduce the operating cost, taking into account both economic benefits and environmental protection and emission reduction.

[0011] The first object of the invention can also be solved by the following technical measures: Furthermore, each honeycomb-shaped phase change material unit is filled with a composite phase change material and heat-sealed through an aluminum-plastic composite film to form a cold storage module unit; the composite phase change material includes n-tetradecane and nano-graphene oxide, the mass fraction of n-tetradecane is 95-98%, the mass fraction of nano-graphene oxide is 2-5%, the particle size range of the nano-graphene oxide is 50-200 nanometers, and the n-tetradecane and nano-graphene oxide are mixed by high-speed stirring and ultrasonic dispersion technologies to form the composite phase change material.

[0012] Furthermore, the inner wall of the heat exchange channel is a metal plate made of 304 or 316L stainless steel with a microchannel structure, and the microchannel structure includes a plurality of micro-grooves with a width of 0.5-1.2 millimeters and a depth of 0.3-0.8 millimeters, and the grooves are arranged in a cross or spiral shape.

[0013] Furthermore, it also includes a heat exchange housing, the heat exchange housing is closely attached to the boiler through a heat-conducting adhesive, a plurality of heat-conducting columns are arranged inside the heat exchange housing, the ends of the heat-conducting columns pass through the heat exchange housing and extend into the flash tank, a liquid heat-conducting medium is filled in the heat exchange housing, the liquid heat-conducting medium coats the heat-conducting columns and contacts the inner wall of the heat exchange housing; the heat generated by the boiler preheats the water in the flash tank through the heat-conducting adhesive, the heat exchange housing, the liquid heat-conducting medium and the heat-conducting columns.

[0014] The collaborative design of the honeycomb-shaped phase change material unit, microchannel heat exchange and heat-conducting housing significantly improves the energy storage and heat exchange efficiency of the system: the composite phase change material has a high latent heat density and enhanced thermal conductivity, can quickly absorb heat and store cold at low load and efficiently release it at high load, greatly suppressing instantaneous cold and heat demands; the stainless steel plate with a microchannel structure and spiral grooves increase the heat exchange area and promote turbulence, reducing the thermal resistance; the liquid medium and heat-conducting columns in the heat-conducting housing efficiently transfer the waste heat of the boiler to the flash tank to realize preheating the circulating water. The above measures make the transient response of the heat pump system faster, the COP higher, the comprehensive energy saving rate increased by more than 15%, and the equipment wear and maintenance cost reduced.

[0015] Further, an upper partition plate and a lower partition plate are arranged inside the heat exchange tank. The upper partition plate and the lower partition plate divide the heat exchange tank into an upper part of the heat exchange tank, a middle part of the heat exchange tank, and a lower part of the heat exchange tank. A first heat exchange coil is arranged inside the upper part of the heat exchange tank. The cooling inlet is communicated with the upper part of the heat exchange tank. The fourth circulating water outlet is communicated with the inlet of the first heat exchange coil. The inlet of the water pump is communicated with the outlet of the first heat exchange coil. The heat exchange pipes are arranged at intervals in the middle part of the heat exchange tank. The upper ports of the heat exchange pipes pass through the upper partition plate and are communicated with the upper part of the heat exchange tank. The lower ports of the heat exchange pipes pass through the lower partition plate and are communicated with the lower part of the heat exchange tank. A heat exchange channel is formed between the inner cavity of the middle part of the heat exchange tank and the heat exchange pipes. A second heat exchange coil is arranged inside the lower part of the heat exchange tank. The cooling outlet is communicated with the lower part of the heat exchange tank. The fourth circulating water outlet is communicated with the inlet of the second heat exchange coil. The inlet of the water pump is communicated with the outlet of the second heat exchange coil.

[0016] The upper and lower partition plates divide the heat exchange tank into three functional areas, enabling the cooling, condensation, and re-cooling processes to be carried out independently in their respective optimal flow channels: the upper first coil preferentially recovers the initial cooling heat of the wine vapor, the middle heat exchange pipes and the heat exchange channel achieve efficient steam condensation, and the lower second coil further reduces the temperature of the wine liquid and recovers the remaining heat energy. This partition design can maintain the best temperature difference and flow rate in each section, reduce heat interference and crosstalk, significantly improve the overall heat transfer coefficient, ensure the graded cooling of the wine liquid while maximizing the heat energy recovery, thereby improving the system COP and reducing energy consumption.

[0017] Further, both the upper partition plate and the lower partition plate are perforated partition plates with multiple through holes. The diameter of the through holes is 3 mm to 10 mm. The upper ports of the heat exchange pipes pass through the corresponding through holes of the upper partition plate and extend into the upper part of the heat exchange tank. The lower ports of the heat exchange pipes pass through the corresponding through holes of the lower partition plate and extend into the lower part of the heat exchange tank. The inner walls of the through holes and the outer walls of the heat exchange pipes are filled with sealant. The diameter of the first heat exchange coil is Φ16 mm to Φ20 mm. The diameter of the second heat exchange coil is Φ10 mm to Φ14 mm. The inner surface of the heat exchange tank and the outer walls of the heat exchange coils are coated with a nano-composite anti-scaling coating with hydrophilic and anti-fouling functions. The thickness of the coating is 5 μm to 20 μm.

[0018] The cooperation of the perforated partition plate and the sealant ensures the tight isolation and leakage prevention of each section of the heat exchange pipes. The optimized diameter of the through holes takes into account both the flow and the structural strength. The upper and lower coils with different diameters respectively match the heat exchange requirements of high-temperature wine vapor and medium-low temperature wine liquid, enhancing the heat exchange uniformity. The nano-composite anti-scaling coating endows the inner wall and the outer wall of the pipe with hydrophilic and anti-fouling characteristics, effectively inhibiting the attachment of scale and organic pollutants, maintaining a high heat transfer efficiency for a long time and reducing maintenance downtime. The overall design significantly reduces the heat transfer resistance and fouling loss, improves the system stability and heat exchange performance, extends the equipment life and reduces the operation and maintenance cost.

[0019] The second object of the invention is achieved as follows: An automatic wine distillation device, including the improved heat pump system with heating and cooling functions as described above, further includes a wine distillation kettle. The wine distillation kettle is internally provided with a fermented grains storage area and a wine aroma steam discharge area. The fermented grains storage area is located below the wine aroma steam discharge area. The fermented grains storage area and the wine aroma steam discharge area are connected. A second steam port communicating with the fermented grains storage area is opened at the bottom of the wine distillation kettle. A third steam port communicating with the wine aroma steam discharge area is opened at the top of the wine distillation kettle. A fifth temperature sensor is installed inside the wine distillation kettle. The first steam port is connected to the steam secondary heating inlet, the steam secondary heating outlet is connected to the second steam port, the third steam port is connected to the cooling inlet, and the fifth temperature sensor is connected to the intelligent control system.

[0020] By setting up a vertically connected fermented grains storage area and a wine aroma steam discharge area inside the wine distillation kettle and arranging a fifth temperature sensor, this automatic wine distillation device can achieve precise zoned heating and temperature monitoring of the distillation medium: The steam first enters the fermented grains storage area through the second steam port at the bottom to fully contact the fermented grains liquid, and then brings out a strong wine aroma from the third steam port at the top, ensuring the efficient precipitation and separation of wine aroma components.

[0021] Connecting the first steam port, the second steam port, and the third steam port to the secondary heating inlet, the secondary heating outlet, and the cooling inlet respectively to form a closed-loop steam flow channel, ensuring the cascaded heating and efficient condensation recovery of the steam. The intelligent control system reads the data of the fifth temperature sensor in real time, dynamically adjusts the output of the heat source and the cold source, realizes precise temperature control and automatic operation, thereby improving the wine quality, stabilizing the distillation efficiency, and significantly reducing energy consumption and manual intervention.

[0022] The second object of the invention can also be solved by adopting the following technical measures: Furthermore, the wine distillation kettle includes a pot lid and a pot body. The pot lid is detachably buckled on the pot body. The third steam port is opened on the pot lid. The second steam port is opened at the bottom of the pot body. A partition for placing fermented grains is arranged above the second steam port. The partition divides the wine distillation kettle into a fermented grains storage area and a wine aroma steam discharge area.

[0023] Combining the detachable buckling of the pot lid and the partition zoning design, on the one hand, it can realize the quick opening and sealing of the wine distillation kettle, facilitating automatic feeding and cleaning and maintenance; on the other hand, the partition precisely divides the inside of the pot body into a fermented grains storage area and a wine aroma steam discharge area, ensuring that the steam evenly penetrates the fermented grains liquid and efficiently rises, improving the distillation efficiency and the aroma concentration of the product.

[0024] Furthermore, it also includes a frame and an electric swing arm device, the heat pump system and the condensing device are arranged on the frame, the electric swing arm device includes a vertical frame, a horizontal frame, a motor, a cylinder, a state locking component and a pot cover connecting part, the vertical frame is rotatably arranged on the frame, the motor is arranged on the frame, the rotating shaft of the motor is connected to the vertical frame, one end of the horizontal frame is slidably connected to the vertical frame, and the horizontal frame can slide along the length direction of the vertical frame, the state locking component is arranged on the horizontal frame, the state locking component locks the height state of the horizontal frame, the cylinder is arranged at the other end of the horizontal frame, the pot cover connecting part is fixed on the pot cover, the telescopic rod of the cylinder is connected to the pot cover connecting part, the control panel of the intelligent control system is arranged on the frame, and the motor and the cylinder are electrically connected to the intelligent control system respectively.

[0025] The electric swing arm device is integrated with the frame into an automatic opening and closing system. The motor drives the vertical frame to rotate, the horizontal frame to slide, and the cylinder to extend and retract to achieve precise positioning and locking of the pot cover. No manual operation is required. With the intelligent control system, the entire process of feeding - sealing - distillation - opening the lid can be automatically switched, which significantly improves production safety, reliability and efficiency.

[0026] The beneficial effects of the invention are as follows: The present invention realizes seamless switching of four working conditions: cooling, heating, cold storage and steam secondary heating, through an integrated layout of one machine with multiple functions. Traditional systems usually require multiple devices and complicated valve switching, with high investment costs and site occupation. However, this design reuses core components such as compressors and heat exchangers in the same heat pump unit, which not only simplifies the overall pipeline, but also reduces the cost of equipment purchase and installation.

[0027] In the energy storage link, the present invention uses honeycomb phase change material units to fill the cold storage tank and around the evaporator coil. Compared with the common simple water tank or mineral heat storage body, the honeycomb phase change material has a higher energy storage density and a faster phase change response speed. It can instantly release or absorb a large amount of cold and heat energy when the building's cold and hot loads fluctuate rapidly, significantly improving the system's ability to regulate load peaks and valleys.

[0028] The present invention integrates the flash evaporation and condensation processes, and realizes in-situ recovery of the flash steam latent heat by directly arranging the condenser in the flash tank. This shortens the flow path of the steam and condensation circuits, reduces the energy loss caused by secondary pumping and external heat exchange, and greatly improves the steam utilization rate and heat recovery efficiency.

[0029] In the heat exchange link with the external water source, the system adds a flow sensor and an electronic control valve to the shell-and-tube heat exchange tank, enabling the flow rate of municipal cold water or surface water to be adjusted in real time according to the load demand and optimizing it together with the first circulating water flow rate. This dual-channel precise control method breaks through the rough adjustment means of traditional plate-and-shell heat exchangers that rely only on on-off valves, achieving high-precision management of heat exchange efficiency and outlet water temperature.

[0030] In the present invention, in order to cope with different load conditions, a variable-frequency drive module is equipped at the compressor end, and temperature and flow sensors are arranged at multiple locations such as the flash tank, cold storage tank, heat exchange tubes, and secondary heating outlet. All data are fed into the intelligent control system. Through a closed-loop algorithm, the compressor speed, water pump flow rate, and electronic valve opening degree can be dynamically matched with the actual demand, maximizing the COP / SEER and greatly reducing the start-stop losses in the low-load season.

[0031] In the present invention, aiming at the problems of separation and poor linkage between traditional heat pumps and boiler secondary heating, this design introduces the steam generated by the flash tank into the heating tubes in the boiler, reheats it and then outputs high-temperature steam for high-temperature heating or process heat sources. This deep integration method not only increases the terminal temperature of the steam but also makes the boiler load more stable and the overall energy consumption lower.

[0032] In the present invention, through multi-point online monitoring and intelligent closed-loop optimization, all-round control of the entire cold and heat cycle and steam heating process is achieved. Compared with traditional heat pump systems that rely on manual experience for adjustment and have few monitoring points, this innovation significantly reduces operation fluctuations and operation and maintenance costs, providing an efficient, green, and reliable cold and heat integrated energy supply solution for the building and industrial fields.

[0033] In the present invention, the system organically integrates the heat pump heating, steam secondary heating, and condensation refrigeration functions, eliminating the need for additional refrigeration units or independent boilers, significantly reducing equipment investment and floor space, and realizing cold and heat dual-mode switching and integrated operation.

[0034] In the present invention, the low-temperature heat pump first heats up, the medium-temperature steam flashes, and then is reheated by the boiler. Together with the micro-channel heat exchange and phase change cold storage module, the low-grade heat energy and waste heat are recovered to the greatest extent, increasing the coefficient of performance (COP) of the system to ≈4.0, saving more than 10% energy compared with traditional boilers or heat pump units.

[0035] In the present invention, the honeycomb composite phase change material absorbs heat and stores cold during low electricity price valleys or low load periods, releases cold energy during peak periods to assist condensation, suppresses instantaneous load fluctuations, reduces the large-power start-up times of compressors and boilers, and reduces the operation cost by about 15%.

[0036] In the present invention, five high-precision temperature sensors are arranged inside the flash tank, cold storage tank, condensation section, boiler outlet and wine distilling kettle. The hierarchical coarse adjustment + fine adjustment PID strategy is adopted to lock the temperature inside the kettle at 98°C ± 0.2°C, ensuring the stable release of the distillation efficiency and the aroma components of the wine, and increasing the liquor yield by about 5%.

[0037] In the present invention, the intelligent control system collects temperature, flow and valve position data in real time, and automatically adjusts the compressor, boiler, water pump and electronic valve without manual intervention. The nano-scale anti-scaling coating and the design of the heat-conducting shell reduce scaling and maintenance frequency, extend the equipment life and reduce the operation and maintenance costs. Description of the Drawings

[0038] Figure 1 It is a schematic diagram of an automatic wine distilling equipment.

[0039] Figure 2 It is a schematic diagram of an automatic wine distilling equipment (except for part of the frame).

[0040] Figure 3 It is a schematic diagram of an automatic wine distilling equipment (the cover connection part is in the rising state).

[0041] Figure 4 It is a schematic diagram of an automatic wine distilling equipment (the cover connection part is in the moving state).

[0042] Figure 5 It is a schematic diagram of a condensation device.

[0043] Figure 6 It is a schematic diagram of the condensation device from another angle.

[0044] Figure 7 It is a cross-sectional view of the condensation device.

[0045] Figure 8 It is a schematic diagram of a flash tank.

[0046] Figure 9 It is a schematic diagram of a cold storage tank.

[0047] Figure 10 It is a combined schematic diagram of a steam secondary heating device and a heat exchange shell.

[0048] Figure 11 It is a schematic diagram of a wine distilling kettle. Detailed Embodiments

[0049] The present invention will be further described below in conjunction with the drawings and embodiments: Embodiment, in combination with Figures 1 to 11As shown in the figure, an improved heat pump system with heating and cooling functions includes a heat pump device 1, a condensation device 2, a flash tank 3, a cold storage tank 4, a water pump 5, a steam secondary heating device 6 and an intelligent control system. The heat pump device 1 includes at least one set of heat pump components. Each heat pump component includes a compressor 11, an evaporator 12, an expansion valve 14 and a condenser 13 connected in sequence. The compressor 11 is equipped with a variable frequency drive module for real-time adjustment of the rotation speed of the compressor 11.

[0050] The flash tank 3 is provided with a second circulating water inlet 31 and a first steam port 32. The condenser 13 is placed inside the flash tank 3. A first temperature sensor 10 is installed inside the flash tank 3.

[0051] The cold storage tank 4 is provided with a third circulating water inlet 41 and a fourth circulating water outlet 42. The evaporator 12 is placed inside the cold storage tank 4. A plurality of honeycomb-shaped phase change material units 43 are embedded around the coil of the evaporator 12 and inside the cold storage tank 4. A second temperature sensor 20 is installed inside the cold storage tank 4.

[0052] The condensation device 2 includes a heat exchange tank 21. A heat exchange tube 22 is installed inside the heat exchange tank 21. A heat exchange channel 23 is formed between the inner wall of the heat exchange tank 21 and the outer wall of the heat exchange tube 22. The upper end of the heat exchange tube 22 extends outside the heat exchange tank 21 to form a cooling inlet 221, and the lower end of the heat exchange tube 22 extends outside the heat exchange tank 21 to form a cooling outlet 222. An external water source inlet 211, a first circulating water inlet 212 and a first circulating water outlet 213 communicating with the heat exchange channel 23 are opened on the outer wall of the heat exchange tank 21. A third temperature sensor 30 is installed inside the heat exchange tube 22.

[0053] Flow sensors are installed at both the external water source inlet 211 and the first circulating water inlet 212. An electronic control valve for controlling the opening degree of the external water source inlet 211 is installed at the external water source inlet 211.

[0054] The inlet of the water pump 5 is connected to the first circulating water outlet 213. One path of the outlet of the water pump 5 is connected to the second circulating water inlet 31, and the other path of the outlet of the water pump 5 is connected to the third circulating water inlet 41. The fourth circulating water outlet 42 is connected to the first circulating water inlet 212.

[0055] The steam secondary heating device 6 includes a boiler 61, a heating tube 62 and a fourth temperature sensor 40. The heating tube 62 is arranged inside the cavity of the boiler 61. The boiler 61 is provided with a steam secondary heating inlet 611 and a steam secondary heating outlet 612. The fourth temperature sensor 40 is arranged inside the cavity of the boiler 61 and close to the steam secondary heating outlet 612.

[0056] The first steam port 32 is in communication with the steam secondary heating inlet 611, and the steam secondary heating outlet 612 discharges the hot steam for heating.

[0057] The compressor 11, the heating tube 62, the water pump 5, the first temperature sensor 10, the second temperature sensor 20, the third temperature sensor 30, the fourth temperature sensor 40, the flow sensor (not shown in the figure), the electronic control valve (not shown in the figure), and the variable frequency drive module (not shown in the figure) are respectively connected to the intelligent control system (not shown in the figure).

[0058] Further, each honeycomb phase change material unit 43 is filled with a composite phase change material and formed into a cold storage module unit through heat sealing with an aluminum-plastic composite film.

[0059] The composite phase change material includes n-tetradecane and nano-graphene oxide. The mass fraction of n-tetradecane is 95 - 98%, the mass fraction of nano-graphene oxide is 2 - 5%, the particle size range of the nano-graphene oxide is 50 - 200 nanometers, and the n-tetradecane and nano-graphene oxide are mixed by high-speed stirring and ultrasonic dispersion techniques to form the composite phase change material.

[0060] Further, the inner wall of the heat exchange channel 23 is a metal plate made of 304 or 316L stainless steel with a microchannel structure. The microchannel structure includes a plurality of micro-grooves 231 with a width of 0.5 - 1.2 millimeters and a depth of 0.3 - 0.8 millimeters, and the micro-grooves 231 are arranged in a cross or spiral shape.

[0061] Further, it also includes a heat exchange housing 7. The heat exchange housing 7 is closely attached to the boiler 61 through a heat-conducting adhesive 72. A plurality of heat-conducting columns 71 are arranged inside the heat exchange housing 7. The ends of the heat-conducting columns 71 pass through the heat exchange housing 7 and extend into the flash tank 3. The heat exchange housing 7 is filled with a liquid heat-conducting medium, and the liquid heat-conducting medium coats the heat-conducting columns 71 and contacts the inner wall of the heat exchange housing 7.

[0062] The heat generated by the boiler 61 preheats the water in the flash tank 3 through the heat-conducting adhesive 72, the heat exchange housing 7, the liquid heat-conducting medium, and the heat-conducting columns 71.

[0063] Further, an upper partition 24 and a lower partition 25 are arranged inside the heat exchange tank 21. The upper partition 24 and the lower partition 25 divide the heat exchange tank 21 into an upper part 251 of the heat exchange tank, a middle part 252 of the heat exchange tank, and a lower part 253 of the heat exchange tank.

[0064] The upper part 251 of the heat exchange tank is internally provided with a first heat exchange coil 26. The cooling inlet 221 is in communication with the upper part 251 of the heat exchange tank. The fourth circulating water outlet 42 is in communication with the first heat exchange coil inlet 261, and the inlet of the water pump 5 is in communication with the first heat exchange coil outlet 262.

[0065] In the middle part 252 of the heat exchange tank, the heat exchange tubes 22 are arranged at intervals. The upper ports of the heat exchange tubes 22 pass through the upper partition plate 24 to communicate with the upper part 251 of the heat exchange tank. The lower ports of the heat exchange tubes 22 pass through the lower partition plate 25 to communicate with the lower part 253 of the heat exchange tank. A heat exchange channel 23 is formed between the inner cavity of the middle part 252 of the heat exchange tank and the heat exchange tubes 22.

[0066] In the lower part 253 of the heat exchange tank, a second heat exchange coil 27 is installed. The cooling outlet 222 communicates with the lower part 253 of the heat exchange tank. The fourth circulating water outlet 42 communicates with the inlet 271 of the second heat exchange coil. The inlet of the water pump 5 communicates with the outlet 272 of the second heat exchange coil.

[0067] Furthermore, both the upper partition plate 24 and the lower partition plate 25 are perforated partition plates with a plurality of through holes 241. The diameter of the through holes is 3 mm to 10 mm. The upper ports of the heat exchange tubes 22 pass through the corresponding through holes 241 of the upper partition plate 24 and extend into the upper part 251 of the heat exchange tank. The lower ports of the heat exchange tubes 22 pass through the corresponding through holes 241 of the lower partition plate 25 and extend into the lower part 253 of the heat exchange tank. Sealant is filled between the inner wall of the through holes 241 and the outer wall of the heat exchange tubes 22.

[0068] The diameter of the first heat exchange coil 26 is Φ16 mm to Φ20 mm, and the diameter of the second heat exchange coil 27 is Φ10 mm to Φ14 mm.

[0069] The inner surface of the heat exchange tank 21 and the outer wall of the heat exchange coil are both coated with a nano-composite anti-scaling coating with hydrophilic and anti-scaling functions. The thickness of this coating is 5 μm to 20 μm.

[0070] An automatic wine distillation device further includes a wine distillation kettle 8. Inside the wine distillation kettle 8, there are a fermented grains storage area 81 and a wine aroma steam discharge area 82. The fermented grains storage area 81 is located below the wine aroma steam discharge area 82. The fermented grains storage area 81 and the wine aroma steam discharge area 82 are communicated. A second steam port 811 communicating with the fermented grains storage area 81 is opened at the bottom of the wine distillation kettle 8. A third steam port 821 communicating with the wine aroma steam discharge area 82 is opened at the top of the wine distillation kettle 8. A fifth temperature sensor 50 is installed inside the wine distillation kettle 8.

[0071] The steam secondary heating outlet 612 communicates with the second steam port 811. The third steam port 821 communicates with the cooling inlet 221. The fifth temperature sensor 50 is connected to the intelligent control system.

[0072] Further, the wine distilling kettle 8 includes a pot lid 83 and a pot body 84. The pot lid 83 is detachably buckled on the pot body 84. The third steam port 821 is opened on the pot lid 83, and the second steam port 811 is opened at the bottom of the pot body 84. A partition plate 85 for placing fermented grains is arranged above the second steam port 811. The partition plate 85 divides the wine distilling kettle 8 into a fermented grains storage area 81 and a wine aroma steam discharge area 82.

[0073] Further, it also includes a frame 86 and an electric swing arm device 87. The heat pump system and the condensation device 2 are arranged on the frame 86. The electric swing arm device 87 includes a vertical frame 871, a horizontal frame 872, a motor 873, a cylinder 874, a state locking component, and a pot lid connection part 876. The vertical frame 871 is rotatably arranged on the frame 86. The motor 873 is arranged on the frame 86, and the rotating shaft of the motor 873 is connected to the vertical frame 871. One end of the horizontal frame 872 is slidably connected to the vertical frame 871, and the horizontal frame 872 can slide along the length direction of the vertical frame 871. The state locking component is arranged on the horizontal frame 872, and the state locking component locks the height state of the horizontal frame 872. The cylinder 874 is arranged at the other end of the horizontal frame 872. The pot lid connection part 876 is fixed on the pot lid 83, and the telescopic rod of the cylinder 874 is connected to the pot lid connection part 876. The control panel 9 of the intelligent control system is arranged on the frame 86. The motor 873 and the cylinder 874 are respectively electrically connected to the intelligent control system.

[0074] A wine distilling method includes the following steps: Step 1: Start the cylinder 874 through the control panel 9. The telescopic rod of the cylinder 874 drives the pot lid 83 to rise through the pot lid connection part 876, so that the pot lid 83 is separated from the pot body 84. Then, the control panel 9 starts the motor 873. The motor 873 drives the horizontal frame 872 to rotate through the vertical frame 871, thereby driving the pot lid 83 to move and making the pot lid 83 leave the pot body 84. At this time, the user can add the fermented grains that have completed fermentation to the fermented grains storage area 81 of the wine distilling kettle 8.

[0075] Step 2: Start the motor 873 through the control panel 9. The motor 873 drives the horizontal frame 872 to rotate through the vertical frame 871, thereby driving the pot lid 83 to move and making the pot lid 83 located above the pot body 84. Then, the control panel 9 starts the cylinder 874. The telescopic rod of the cylinder 874 drives the pot lid 83 to descend through the pot lid connection part 876, so that the pot lid 83 is buckled with the pot body 84.

[0076] Step 3: Start the electronic control valve through the control panel 9. The external water source enters the heat exchange channel 23 along the external water source inlet 211. At the same time, the control panel 9 starts the water pump 5. The water pump 5 pumps the water in the heat exchange channel 23 into the flash evaporation tank 3 and the cold storage tank 4 respectively.

[0077] Step Four: Start the heat pump system and the steam secondary heating device 6 through the control panel 9. The initial startup requires 25 - 30 minutes for preheating.

[0078] Step Five: After the preheating is completed, the heat generated by the condenser 13 heats the water in the flash tank 3 to form steam. The steam enters the wine distillation kettle 8 through the first steam port 32, the steam secondary heating inlet 611, the boiler 61, the steam secondary heating outlet 612, and the second steam port 811 to heat the mash to form wine aroma steam.

[0079] Step Six: The wine aroma steam enters the inner cavity of the upper part 251 of the heat exchange tank through the third steam port 821 and the cooling inlet 221. The water in the first heat exchange coil 26 exchanges heat with the wine aroma steam in the inner cavity of the upper part 251 of the heat exchange tank, and the wine aroma steam in the inner cavity of the upper part 251 of the heat exchange tank exchanges heat to form high-temperature wine liquid.

[0080] Step Seven: The high-temperature wine liquid enters the heat exchange tube 22, and the water in the heat exchange channel 23 in the inner cavity of the middle part 252 of the heat exchange tank exchanges heat with the high-temperature wine liquid in the heat exchange tube 22 to form medium-temperature wine liquid.

[0081] Step Eight: The medium-temperature wine liquid enters the inner cavity of the lower part 253 of the heat exchange tank, and the water in the second heat exchange coil 27 exchanges heat with the wine aroma steam in the inner cavity of the lower part 253 of the heat exchange tank. The medium-temperature wine liquid in the inner cavity of the lower part 253 of the heat exchange tank forms low-temperature wine liquid and flows out and is collected through the cooling outlet 222.

[0082] Step Nine: The water in the first heat exchange coil 26, the water in the heat exchange channel 23, and the water in the second heat exchange coil 27 form circulating water, and the water pump 5 pumps out the circulating water.

[0083] One part of the circulating water enters the flash tank 3 through the second circulating water inlet 31. Since the water temperature of the circulating water is higher than the normal water temperature, the heat generated by the condenser 13 heats the circulating water in the flash tank 3 to quickly form steam, improving the steam formation efficiency.

[0084] Another part of the circulating water enters the cold storage tank 4 through the third circulating water inlet 41. The evaporator 12 and the honeycomb phase change material unit 43 cool the circulating water to form cold water.

[0085] One part of the cold water enters the heat exchange channel 23 along the fourth circulating water outlet 42 and the first circulating water inlet 212.

[0086] Another part of the cold water enters the first heat exchange coil 26 along the fourth circulating water outlet 42.

[0087] Another part of the cold water enters the second heat exchange coil 27 along the fourth circulating water outlet 42.

[0088] Step Ten: After the automatic wine distillation equipment is started, Steps Three to Eight work in a cycle.

[0089] Step Eleven: The intelligent control system starts the heat pump system according to the operating load and electricity price policy during the night or low-load period. The evaporator 12 releases cold energy, enabling the honeycomb-shaped phase change material unit 43 of the cold storage tank 4 to absorb and store cold energy as latent heat during the low electricity price period, achieving cold energy storage. During the peak period of liquor steaming, the released cold energy is called to assist the condensation circuit, reducing the instantaneous power demand and improving the overall energy efficiency.

[0090] The specific embodiments of the present invention are as follows, but the present invention is not limited to this embodiment. Main components and parameters of the system The main components and their parameters of the system are as follows: Compressor 11 (model HBP-50VF): Rated power 50kW, frequency conversion range 30–60Hz, coefficient of performance COP is about 4.2.

[0091] Coils of the heat pump evaporator 12: Φ16mm stainless steel microchannel plate, with multiple 0.8×0.5mm micro-grooves 231 arranged on the surface, and the coils are coated with a honeycomb-shaped phase change material unit 43 to enhance the heat transfer efficiency.

[0092] Honeycomb-shaped phase change material unit 43: Composed of n-tetradecane (mass fraction 95–98%) and 2% nano-graphene oxide, melting point about 6°C, latent heat about 180kJ / kg, module size 200×200×50mm.

[0093] Flash tank 3 (with the first temperature sensor 10T1 inside): Tank diameter 400mm, height 800mm, circulating water volume 100L, used for primary steam separation and heat energy release.

[0094] Boiler 61 (secondary heating device, with the fourth temperature sensor 40T4 inside): Model BR-100, electric heating power 100kW, used for reheating the flashed steam to a high temperature.

[0095] Heat exchange tank 21 (with the third temperature sensor 30T3 inside): Size 600×400×300mm, with two Φ12mm stainless steel microchannel heat exchange tubes 22 inside, achieving efficient steam condensation and waste heat recovery.

[0096] Cold storage tank 4 (with the second temperature sensor 20T2 inside): Tank diameter 300mm, height 600mm, containing 20kg honeycomb PCM modules, used for cold energy storage and slow release.

[0097] Intelligent control system: Based on STM32+PLC, 10Hz data sampling and PID algorithm closed-loop control, integrating SCADA monitoring and remote communication functions.

[0098] Water pump 5 (with built-in flow sensor): Model WP-15, rated flow 10 m³ / h, head 15 m, used to drive the circulating water through each heat exchange unit.

[0099] Step 1: Initialization and calibration When the system is powered on, the intelligent control system sequentially reads the current values of the T1–T5 temperature sensors and performs linear calibration to eliminate sensing errors.

[0100] Set the frequency of the compressor 11 to 30 Hz, the power of the boiler 61 to 20 kW, the flow rate of the water pump 5 to 10 m^3 / h, and the opening of the electronic valve to 40%.

[0101] Step 2: Feeding Add 200 kg of fermented mash to the mash storage area 81 of the distillation kettle 8, cover the kettle lid 83 and lock it. The initial value of T5 (temperature inside the kettle) is approximately 25°C.

[0102] Step 3: Coarse temperature adjustment The controller starts the heat pump compressor 11, linearly increasing the frequency from 30 Hz to 50 Hz, and increasing the power of the heating element 62 of the boiler 61 to 80 kW.

[0103] The temperature of T1 (water temperature in the flash tank 3) rises from 25°C to 80°C, and the temperature of T4 (steam at the outlet of the boiler 61) rises to 120°C, taking about 90 s.

[0104] Step 4: Fine temperature adjustment and stabilization When T5 rises to 97.5°C, switch to the fine adjustment mode: Fine-tune the frequency of the compressor 11 to 48–52 Hz.

[0105] Fine-tune the power of the boiler 61 to 78–82 kW.

[0106] Fine-tune the opening of the electronic valve to 38–42%.

[0107] Fine-tune the flow rate of the water pump 5 to 9.5–10.5 m^3 / h.

[0108] Keep T5 fluctuating within 98°C ± 0.2°C.

[0109] Step 5: Steam delivery and distillation The medium-temperature steam generated by the flash tank 3 enters the boiler 61 for secondary heating through the first steam port 32 and the steam secondary heating inlet 611, generating high-temperature steam at 120°C.

[0110] The high-temperature steam enters the distillation kettle 8 from the steam secondary heating outlet 612 of the boiler 61 and contacts the mash to generate fragrant steam through evaporation.

[0111] T5 stabilizes at 98°C, and the distillation process lasts for 30 min.

[0112] Step 6: Condensation recovery and waste heat preheating The wine vapor is discharged from the third steam port 821, enters the heat exchange tank 21 through the cooling inlet 221, and T3 is maintained at 12°C ± 0.3°C.

[0113] The condensed wine liquid flows out from the cooling outlet 222, and about 15L of wine liquid is collected.

[0114] The heat released by condensation is recovered to the circulating water, and the circulating water is preheated to 60°C and then enters the flash tank 3 through the second circulating water inlet 31, and T1 is maintained at 80°C ± 0.5°C.

[0115] Step 7: Energy storage and peak shaving When running to the low valley period at night (23:00–06:00), the intelligent control system starts the heat pump system, and the honeycomb phase change material unit 43 absorbs heat and undergoes a phase change under the T2 environment to complete cold storage.

[0116] The cold released by the honeycomb phase change material unit 43 is called during the peak wine distillation period the next day to assist in controlling the temperature of T3.

[0117] The temperature in the wine distillation kettle 8 is stabilized at 98°C ± 0.2°C.

[0118] The wine distillation rate is increased by 5%, and the energy consumption is reduced by 10%.

[0119] The overall COP of the whole machine is approximately 4.0, and the energy-saving effect is remarkable.

[0120] This system adopts a composite energy-saving structure of "heat pump + secondary steam heating + phase change cold storage + intelligent control": the heat pump first heats the low-temperature water into medium-temperature steam, and after preliminary heating by the flash tank 3, it enters the boiler 61 for secondary heating to the high temperature required for wine distillation, minimizing the independent operation of the boiler 61. The honeycomb composite phase change material in the cold storage tank 4 absorbs heat and stores energy during the night or low electricity price period, and releases cold during the peak period to assist steam condensation, realizing peak shaving of heat and cold loads. The intelligent control system monitors the five-way temperature and flow data in real time, dynamically adjusts the frequency of the compressor 11, the flow of the water pump 5 and the power of the boiler 61, ensuring the coordinated optimization of each subsystem, significantly improving the COP and reducing energy consumption and operating costs.

[0121] Precise temperature control is achieved by arranging the first to fifth temperature sensors 50 in the flash tank 3, the cold storage tank 4, the condensation section, the outlet of the boiler 61 and the wine distillation kettle 8 respectively to form a multi-point closed loop: first, the compressor 11 is frequency-converted and the boiler 61 is roughly adjusted to quickly raise the key nodes to the target area, and then the electronic valve, pump flow and fine-tuning frequency conversion are used for fine-tuning to stabilize the temperature in the kettle at 98°C ± 0.2°C, avoiding overshoot and fluctuation. This method ensures stable and consistent wine quality, reduces raw material waste, shortens the wine distillation cycle, and realizes full-automatic operation without manual intervention.

[0122] As used in the present invention, terms such as first, second, etc. do not denote any order, quantity or importance, but are merely used for distinction.

[0123] As used in the present invention, terms such as a, an, etc. do not denote a limitation of quantity, but rather denote the presence of at least one of the recited objects. As used in the present invention, terms indicating orientation or position such as top, bottom, side, longitudinal, transverse, middle, center, outer, inner, horizontal, vertical, left, right, above, below, etc. are meant to reflect relative position, not absolute position.

[0124] The above-described embodiments merely represent several implementation manners of the present invention. The description thereof is relatively specific and detailed, but should not be construed as a limitation on the scope of the patent of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several modifications and improvements can still be made, and these all fall within the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the appended claims.

Claims

1. An improved heat pump system with heating and cooling functions, comprising a heat pump device, a condensation device, a flash tank, a cold storage tank, a water pump, a steam secondary heating device and an intelligent control system, characterized in that: The heat pump device includes at least one group of heat pump components, and each heat pump component includes a compressor, an evaporator, an expansion valve and a condenser connected in sequence. The compressor is provided with a variable frequency drive module for real-time adjustment of the compressor speed; The flash tank is provided with a second circulating water inlet and a first steam port. The condenser is placed inside the flash tank, and a first temperature sensor is installed inside the flash tank; The cold storage tank is provided with a third circulating water inlet and a fourth circulating water outlet. The evaporator is placed inside the cold storage tank. A plurality of honeycomb phase change material units are embedded around the inner part of the cold storage tank and the coil of the evaporator. A second temperature sensor is installed inside the cold storage tank; The condensation device includes a heat exchange tank with heat exchange tubes inside. A heat exchange channel is formed between the inner wall of the heat exchange tank and the outer wall of the heat exchange tubes. The upper end of the heat exchange tubes extends out of the heat exchange tank to form a cooling inlet, and the lower end of the heat exchange tubes extends out of the heat exchange tank to form a cooling outlet. An external water source inlet, a first circulating water inlet and a first circulating water outlet communicating with the heat exchange channel are opened on the outer wall of the heat exchange tank. A third temperature sensor is installed inside the heat exchange tubes; Flow sensors are installed at both the external water source inlet and the first circulating water inlet, and an electronic control valve for controlling the opening degree of the external water source inlet is installed at the external water source inlet; The inlet of the water pump is communicated with the first circulating water outlet. One path of the outlet of the water pump is communicated with the second circulating water inlet, and the other path of the outlet of the water pump is communicated with the third circulating water inlet. The fourth circulating water outlet is communicated with the first circulating water inlet; The steam secondary heating device includes a boiler, heating tubes and a fourth temperature sensor. The heating tubes are arranged inside the boiler cavity. The boiler is provided with a steam secondary heating inlet and a steam secondary heating outlet. The fourth temperature sensor is arranged inside the boiler cavity and close to the steam secondary heating outlet; The first steam port is communicated with the steam secondary heating inlet, and the steam secondary heating outlet discharges hot steam for heating; The compressor, the heating tubes, the water pump, the first temperature sensor, the second temperature sensor, the third temperature sensor, the fourth temperature sensor, the flow sensors, the electronic control valve and the variable frequency drive module are respectively connected to the intelligent control system.

2. The improved heat pump system with heating and cooling functions according to claim 1, characterized in that: Each honeycomb phase change material unit is filled with a composite phase change material and heat-sealed through an aluminum-plastic composite film to form a cold storage module unit; The composite phase change material includes n-tetradecane and nano-graphene oxide. The mass fraction of n-tetradecane is 95-98%, and the mass fraction of nano-graphene oxide is 2-5%. The particle size range of the nano-graphene oxide is 50-200 nanometers. The n-tetradecane and nano-graphene oxide are mixed by high-speed stirring and ultrasonic dispersion technology to form the composite phase change material.

3. The improved heat pump system with heating and cooling functions according to claim 1, characterized in that: The inner wall of the heat exchange channel is a metal plate made of 304 or 316L stainless steel with a microchannel structure. The microchannel structure includes a plurality of micro-grooves with a width of 0.5 - 1.2 mm and a depth of 0.3 - 0.8 mm, and the grooves are arranged in a cross or spiral pattern.

4. The improved heat pump system with heating and cooling functions according to claim 1, characterized in that: It further includes a heat exchange shell. The heat exchange shell is closely attached to the boiler through a heat-conducting adhesive. A plurality of heat-conducting columns are arranged inside the heat exchange shell. The ends of the heat-conducting columns pass through the heat exchange shell and extend into the flash tank. The heat exchange shell is filled with a liquid heat-conducting medium, and the liquid heat-conducting medium coats the heat-conducting columns and contacts the inner wall of the heat exchange shell; The heat generated by the boiler preheats the water in the flash tank through the heat-conducting adhesive, the heat exchange shell, the liquid heat-conducting medium, and the heat-conducting columns.

5. The improved heat pump system with heating and cooling functions according to claim 1, characterized in that: The heat exchange tank is internally provided with an upper partition board and a lower partition board. The upper partition board and the lower partition board divide the heat exchange tank into an upper part of the heat exchange tank, a middle part of the heat exchange tank, and a lower part of the heat exchange tank; The upper part of the heat exchange tank is internally provided with a first heat exchange coil. The cooling inlet is communicated with the upper part of the heat exchange tank. The fourth circulating water outlet is communicated with the inlet of the first heat exchange coil. The inlet of the water pump is communicated with the outlet of the first heat exchange coil; The heat exchange pipes are arranged at intervals in the middle part of the heat exchange tank. The upper ports of the heat exchange pipes pass through the upper partition board and are communicated with the upper part of the heat exchange tank. The lower ports of the heat exchange pipes pass through the lower partition board and are communicated with the lower part of the heat exchange tank. The heat exchange channel is formed between the inner cavity of the middle part of the heat exchange tank and the heat exchange pipes; The lower part of the heat exchange tank is internally provided with a second heat exchange coil. The cooling outlet is communicated with the lower part of the heat exchange tank. The fourth circulating water outlet is communicated with the inlet of the second heat exchange coil. The inlet of the water pump is communicated with the outlet of the second heat exchange coil.

6. The improved heat pump system with heating and cooling functions according to claim 5, characterized in that: Both the upper partition board and the lower partition board are perforated partition boards with a plurality of through holes. The diameter of the through holes is 3 mm - 10 mm. The upper ports of the heat exchange pipes pass through the corresponding through holes in the upper partition board and extend into the upper part of the heat exchange tank. The lower ports of the heat exchange pipes pass through the corresponding through holes in the lower partition board and extend into the lower part of the heat exchange tank. The inner walls of the through holes and the outer walls of the heat exchange pipes are filled with a sealing adhesive; The diameter of the first heat exchange coil is Φ16 mm - Φ20 mm, and the diameter of the second heat exchange coil is Φ10 mm - Φ14 mm; The inner surface of the heat exchange tank and the outer walls of the heat exchange coils are both coated with a nano-composite anti-scaling coating with a hydrophilic and anti-scaling function, and the thickness of this coating is 5 μm - 20 μm.

7. An automatic wine distilling device including an improved heat pump system with heating and cooling functions as described in any one of claims 1 - 6, characterized in that: It further includes a wine distilling kettle. The wine distilling kettle is internally provided with a fermented grains storage area and a wine aroma steam discharge area. The fermented grains storage area is located below the wine aroma steam discharge area. The fermented grains storage area and the wine aroma steam discharge area are communicated. A second steam port communicating with the fermented grains storage area is opened at the bottom of the wine distilling kettle. A third steam port communicating with the wine aroma steam discharge area is opened at the top of the wine distilling kettle. A fifth temperature sensor is arranged inside the wine distilling kettle; The steam secondary heating outlet is communicated with the second steam port. The third steam port is communicated with the cooling inlet. The fifth temperature sensor is connected to the intelligent control system.

8. The automatic wine distilling equipment according to claim 7, characterized in that: The distillation kettle includes a pot cover and a pot body. The pot cover is detachably buckled on the pot body. The third steam port is opened on the pot cover, and the second steam port is opened at the bottom of the pot body. A partition for placing fermented grains is arranged above the second steam port. The partition divides the distillation kettle into a fermented grains storage area and a fragrant steam discharge area.

9. The automatic wine distilling equipment according to claim 8, wherein: It further includes a frame and an electric swing arm device. The heat pump system and the condensation device are arranged on the frame. The electric swing arm device includes a vertical frame, a horizontal frame, a motor, a cylinder, a state locking component and a pot cover connecting part. The vertical frame is rotatably arranged on the frame. The motor is arranged on the frame, and the rotating shaft of the motor is connected to the vertical frame. One end of the horizontal frame is slidably connected to the vertical frame, and the horizontal frame can slide along the length direction of the vertical frame. The state locking component is arranged on the horizontal frame, and the state locking component locks the height state of the horizontal frame. The cylinder is arranged at the other end of the horizontal frame. The pot cover connecting part is fixed on the pot cover, and the telescopic rod of the cylinder is connected to the pot cover connecting part. The control panel of the intelligent control system is arranged on the frame, and the motor and the cylinder are respectively electrically connected to the intelligent control system.

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