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

Abstract

The present invention relates to the field of heat pump systems, and in particular to an improved heat pump system and automatic wine distillation equipment with heating and cooling functions, comprising a heat pump device, 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 device comprises at least one group of heat pump components, and the heat pump components comprise a compressor, an evaporator, a condenser and an expansion valve. The compressor, evaporator, condenser and expansion valve are connected, and the compressor is provided with a variable frequency drive module for adjusting the compressor speed in real time; the flash tank is provided with a second circulating water inlet and a first steam port, the condenser is placed in the flash tank, and the flash tank is equipped with a first temperature sensor; the system can flexibly switch between heating and cooling modes on the same equipment platform, significantly improving the overall performance coefficient of the system, reducing instantaneous peak load through energy storage and waste heat recovery of a honeycomb phase change material module, thereby achieving an average energy consumption reduction of more than 10%.

Description

Technical Field

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

[0002] With the growing demand for building energy conservation and clean heating, heat pump technology has been widely used due to its high energy efficiency and low pollution emissions. Heat pump systems include air-source heat pumps, ground-source heat pumps, and water-source heat pumps. They transfer heat between hot and cold temperature levels through key components such as compressors, evaporators, condensers, and expansion valves. Typical heat pumps often require switching the system's circulation loop when switching between cooling and heating modes. This results in complex system structures, lengthy control logic, and difficulty achieving ideal energy efficiency in both cooling and heating modes.

[0003] To meet the needs of cooling and heating, some existing solutions employ additional cold or heat storage devices. However, these typically rely on simple water tanks or mineral thermal storage bodies, resulting in low energy density, bulky volumes, and slow response times, making them incapable of meeting the demands of transient cooling and heating load fluctuations in buildings. Furthermore, while steam reheating is a mature technology for increasing system output temperature, existing devices often rely on a single boiler heating method and lack deep integration with the multi-stage heat pump cycle, making overall system control more difficult and energy consumption higher.

[0004] Furthermore, heat pump systems, both domestically and internationally, typically exchange heat with the environment or external water sources on the condensing side through plate or shell-and-tube heat exchangers. However, due to limitations in heat exchange area configuration and heat exchange channel design, the system's heat exchange efficiency and flow control accuracy are insufficient, making it difficult to precisely adjust and coordinate the flow and temperature of the external water source in real time. Furthermore, the vast majority of heat pump systems rely solely on traditional fixed-frequency compressors and simple on-off valves and piping for control, unable to adjust compressor speed in response to load changes. This can lead to frequent starts and stops, unbalanced circulation, and energy waste under certain operating conditions.

[0005] In summary, the existing heat pump system still has many shortcomings 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 and reduces energy consumption and operating costs.

[0007] The second purpose of the invention is to provide an automatic wine distillation device with high energy efficiency, reduced energy consumption and operating costs.

[0008] The first object of the invention is achieved in this way:

[0009] An improved heat pump system with heating and cooling functions, comprising a heat pump device, a condensing device, a flash tank, a cold storage tank, a water pump, a steam secondary heating device and an intelligent control system, wherein the heat pump device comprises at least one set of heat pump components, wherein the heat pump components comprise a compressor, an evaporator, an expansion valve and a condenser connected in sequence, wherein the compressor is provided with a variable frequency drive module for adjusting the compressor speed in real time; the flash tank is provided with a second circulating water inlet and a first steam port, the condenser is placed in the flash tank, and the flash tank is provided with a first temperature sensor; the cold storage tank is provided with The third circulating water inlet and the fourth circulating water outlet, the evaporator is placed in the cold storage tank, a plurality of honeycomb phase change material units are embedded inside the cold storage tank and around the coil of the evaporator, and the cold storage tank is equipped with a second temperature sensor; the condensing device includes a heat exchange tank, the heat exchange tank is equipped with a heat exchange tube, 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, the lower end of the heat exchange tube extends out of the heat exchange tank to form a cooling outlet, and the outer wall of the heat exchange tank is opened with an external water source connected to the heat exchange channel inlet, first circulating water inlet and first circulating water outlet, the heat exchange tube is equipped with a third temperature sensor; the external water source inlet and the first circulating water inlet are both provided with flow sensors, and the external water source inlet is provided with an electronic control valve for controlling the opening degree of the external water source inlet; the inlet of the water pump is connected to the first circulating water outlet, the outlet of the water pump is connected to the second circulating water inlet in one way, the outlet of the water pump is connected to the third circulating water inlet in another way, and the fourth circulating water outlet is connected to the first circulating water inlet; the steam secondary heating device includes a boiler, a heating pipe and a fourth temperature sensor, the heating pipe is arranged in the boiler cavity, the boiler has a steam secondary heating inlet and a steam secondary heating outlet, the fourth temperature sensor is arranged in the boiler cavity and close to the steam secondary heating outlet; the first steam port is connected to the steam secondary heating inlet, and the steam secondary heating outlet discharges hot steam for heating; the compressor, heating pipe, water pump, first temperature sensor, second temperature sensor, third temperature sensor, fourth temperature sensor, flow sensor, electronic control valve and frequency conversion drive module are respectively connected to the intelligent control system.

[0010] The improved heat pump system of this invention integrates the heat pump primary cycle, flash separation, secondary steam heating, microchannel condensation, and phase change cold storage. Using an intelligent control system, it provides real-time closed-loop regulation of compressor frequency, boiler power, water pump flow, and electronic valve opening, achieving cascaded utilization and peak-shifting scheduling of both heat and cooling energy. Compared to 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 coefficient of performance (COP). Furthermore, the energy storage and waste heat recovery of the honeycomb phase change material module reduces instantaneous peak loads, thereby reducing average energy consumption by over 10%.

[0011] Multi-point temperature and flow sensor monitoring not only ensures optimal temperature differentials and flow rates across each heat exchange link, but also enables the system to precisely target the steam and cooling water temperatures required for the process, reducing overshoot and oscillation, improving operational stability and product quality consistency. Furthermore, intelligent response to peak and valley electricity prices and a strategy of storing cold at night and releasing it during the day further reduce operating costs, balancing economic benefits with environmental protection and emission reduction.

[0012] The first purpose of the invention can also be solved by the following technical measures:

[0013] Furthermore, each honeycomb phase change material unit is filled with a composite phase change material and heat-sealed with 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 the n-tetradecane is 95-98%, the mass fraction of the nano-graphene oxide is 2-5%, and 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.

[0014] 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 to 1.2 mm and a depth of 0.3 to 0.8 mm, and the grooves are arranged in a cross or spiral shape.

[0015] Furthermore, it also includes a heat exchange shell, which is tightly attached to the boiler through heat-conducting glue. A plurality of heat-conducting columns are arranged inside the heat exchange shell, and 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 covers 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 glue, the heat exchange shell, the liquid heat-conducting medium and the heat-conducting columns.

[0016] The honeycomb phase change material unit, designed in conjunction with the microchannel heat exchange and heat-conducting housing, significantly improves the system's energy storage and heat exchange efficiency. The composite phase change material, with its high latent heat density and enhanced thermal conductivity, rapidly absorbs heat and stores cold at low loads, releasing it efficiently at high loads, significantly alleviating transient heating and cooling demands. The microchannel-structured stainless steel plates and spiral grooves increase the heat exchange area and promote turbulence, reducing thermal resistance. The liquid medium and heat-conducting columns within the heat-conducting housing efficiently transfer boiler waste heat to the flash tank, preheating the circulating water. These measures result in faster transient response and a higher COP for the heat pump system, increasing overall energy savings by over 15%, while also reducing equipment wear and maintenance costs.

[0017] Furthermore, the heat exchange tank is built with an upper partition and a lower partition, which divide the heat exchange tank into the upper part, the middle part and the lower part of the heat exchange tank; the upper part of the heat exchange tank is built with a first heat exchange coil, the cooling inlet is connected to the upper part of the heat exchange tank, the fourth circulating water outlet is connected to the inlet of the first heat exchange coil, and the inlet of the water pump is connected to the outlet of the first heat exchange coil; the heat exchange tubes are arranged at intervals in the middle part of the heat exchange tank, the upper port of the heat exchange tube passes through the upper partition and is connected to the upper part of the heat exchange tank, and the lower port of the heat exchange tube passes through the lower partition and is connected to the lower part of the heat exchange tank, and the heat exchange channel is formed between the inner cavity of the middle part of the heat exchange tank and the heat exchange tube; the lower part of the heat exchange tank is built with a second heat exchange coil, the cooling outlet is connected to the lower part of the heat exchange tank, the fourth circulating water outlet is connected to the inlet of the second heat exchange coil, and the inlet of the water pump is connected to the outlet of the second heat exchange coil.

[0018] The upper and lower baffles divide the heat exchange tank into three functional zones, allowing cooling, condensation, and recooling to proceed independently within their respective optimal flow paths. The upper first coil prioritizes recovering the initial cooling heat of the wine vapor, while the middle heat exchange tubes and heat exchange channels achieve efficient steam condensation. The lower second coil further reduces the wine temperature and recovers excess heat. This zoning design maintains optimal temperature differences and flow rates across each zone, minimizing thermal interference and crosstalk, significantly improving the overall heat transfer coefficient. This ensures graded cooling of the wine while maximizing heat recovery, thereby improving the system's cost-effectiveness (COP) and reducing energy consumption.

[0019] Furthermore, the upper partition and the lower partition are both perforated partitions with multiple through holes, the diameter of the through holes is 3mm~10mm, the upper port of the heat exchange tube passes through the corresponding through hole of the upper partition and extends into the upper part of the heat exchange tank, and the lower port of the heat exchange tube passes through the corresponding through hole of the lower partition and extends into the lower part of the heat exchange tank, and the inner wall of the through hole and the outer wall of the heat exchange tube are filled with sealant; the diameter of the first heat exchange coil is Φ16mm~Φ20mm, and the diameter of the second heat exchange coil is Φ10mm~Φ14mm; the inner surface of the heat exchange tank and the outer wall of the heat exchange coil are coated with a nano-composite anti-scaling coating with hydrophilic and scale-repellent function, and the thickness of the coating is 5μm~20μm.

[0020] The perforated baffles, combined with the sealant, ensure tight isolation and leak-proofing of each section of the heat exchange tube. The optimized through-hole diameter balances flow and structural strength. Upper and lower coils of varying diameters are designed to meet the heat exchange requirements of high-temperature wine vapor and medium- and low-temperature liquor, respectively, enhancing heat transfer uniformity. A nanocomposite anti-scaling coating imparts hydrophilic and scale-repellent properties to the inner and outer tube surfaces, effectively inhibiting the adhesion of scale and organic contaminants, maintaining high heat transfer efficiency over time and reducing maintenance downtime. The overall design significantly reduces heat transfer resistance and scaling losses, improving system stability and heat exchange performance, extending equipment life, and reducing operation and maintenance costs.

[0021] The second object of the invention is achieved in this way:

[0022] An automatic wine distilling device comprises the above-mentioned improved heat pump system with heating and cooling functions, and also comprises a wine distilling kettle, wherein the wine distilling kettle is provided with a wine mash storage area and a wine aroma steam discharge area, the wine mash storage area is located below the wine aroma steam discharge area, the wine mash storage area and the wine aroma steam discharge area are connected, a second steam port connected to the wine mash storage area is provided at the bottom of the wine distilling kettle, a third steam port connected to the wine aroma steam discharge area is provided at the top of the wine distilling kettle, and a fifth temperature sensor is provided in the wine distilling 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.

[0023] This automatic wine distillation equipment is able to achieve precise zoning heating and temperature monitoring of the distillation medium by setting up a wine mash storage area and a wine aroma steam discharge area that are connected up and down in the wine distillation kettle, and arranging a fifth temperature sensor: the steam first enters the wine mash storage area from the second steam port at the bottom to fully contact the mash, and then brings out a rich wine aroma from the third steam port at the top, ensuring the efficient precipitation and separation of the wine aroma components.

[0024] The first, second, and third steam ports are connected to the secondary heating inlet, secondary heating outlet, and cooling inlet, respectively, forming a closed-loop steam flow path, ensuring cascaded steam heating and efficient condensation recovery. The intelligent control system reads data from the fifth temperature sensor in real time, dynamically adjusting the output of the heat and cooling sources to achieve precise temperature control and automated operation, thereby improving distillation quality, stabilizing distillation efficiency, and significantly reducing energy consumption and manual intervention.

[0025] The second purpose of the invention can also be solved by the following technical measures:

[0026] Furthermore, the wine distiller includes a pot cover and a pot body, the pot cover is detachably fastened to the pot body, the pot cover is provided with the third steam port, the bottom of the pot body is provided with the second steam port, and a partition for placing wine mash is provided above the second steam port, and the partition separates the wine distiller into a wine mash storage area and a wine aroma steam discharge area.

[0027] The detachable lid is used in conjunction with the partition partition design. On the one hand, the wine still can be quickly opened and sealed, which is convenient for automatic feeding and cleaning and maintenance. On the other hand, the partition accurately divides the interior of the pot into a wine mash storage area and a wine aroma steam discharge area, ensuring that the steam evenly penetrates the mash and rises efficiently, thereby improving the distillation efficiency and product aroma concentration.

[0028] 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 assembly 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 connected to the vertical frame in a sliding manner, and the horizontal frame can slide along the length direction of the vertical frame, the state locking assembly is arranged on the horizontal frame, the state locking assembly 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 cylinder are electrically connected to the intelligent control system respectively.

[0029] The electric rotary 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 lid. No manual operation is required. Combined with the intelligent control system, it can complete the automatic switching of the entire process of feeding - sealing - distillation - opening the lid, significantly improving production safety, reliability and production efficiency.

[0030] The beneficial effects of the invention are as follows:

[0031] This invention, through a multi-functional integrated layout, achieves seamless switching between four operating modes: cooling, heating, cold storage, and steam secondary heating. Traditional systems typically require multiple devices and complex valve switching, resulting in high investment costs and space requirements. This design, however, reuses core components such as the compressor and heat exchanger within the same heat pump unit, simplifying the overall piping and reducing equipment acquisition and installation costs.

[0032] For energy storage, this system utilizes honeycomb-shaped phase-change material units, which are placed around the cold storage tank and evaporator coils. Compared to common simple water tanks or mineral thermal storage bodies, honeycomb phase-change materials offer higher energy storage density and faster phase-change response. This allows them to instantly release or absorb large amounts of cold and heat energy when the building's cooling and heating loads fluctuate rapidly, significantly improving the system's ability to adjust to peaks and valleys in load.

[0033] This invention integrates the flash evaporation and condensation processes, enabling in-situ recovery of the flash steam's latent heat by placing a condenser directly within the flash tank. This shortens the flow path between the steam and condensation circuits, reduces energy losses associated with secondary pumping and external heat exchange, and significantly improves steam utilization and heat recovery efficiency.

[0034] This system incorporates flow sensors and electronic control valves in the shell-and-tube heat exchanger during heat exchange with the external water source. This allows the flow of municipal cold water or surface water to be adjusted in real time based on load demand and optimized together with the primary circulating water flow. This dual-path precision control approach surpasses the crude regulation of traditional plate and shell heat exchangers, which rely solely on on-off valves, and enables highly precise management of heat exchange efficiency and outlet water temperature.

[0035] To cope with varying load conditions, this invention features a variable-frequency drive module on the compressor side. Temperature and flow sensors are deployed in multiple locations, including the flash tank, cold storage tank, heat exchange tubes, and secondary heating outlet. All data is fed into an intelligent control system. Using a closed-loop algorithm, compressor speed, water pump flow, and electronic valve opening are dynamically matched to actual demand, maximizing COP / SEER and significantly reducing start-stop losses during low-load seasons.

[0036] This invention addresses the issues of traditional heat pumps and boilers operating in separate and poorly integrated secondary heating systems. By introducing steam from a flash tank into the boiler's heating tubes, this design reheats the steam and outputs high-temperature steam for use as a high-temperature heating or process heat source. This deep integration not only increases the steam's terminal temperature but also stabilizes the boiler load and reduces overall energy consumption.

[0037] This invention achieves comprehensive control over the entire cooling and heating cycle and steam heating process through multi-point online monitoring and intelligent closed-loop optimization. Compared to traditional heat pump systems that rely on manual adjustment and have few monitoring points, this innovation significantly reduces operational fluctuations and maintenance costs, providing an efficient, green, and reliable integrated cooling and heating energy supply solution for the construction and industrial sectors.

[0038] The present invention and the system organically integrate heat pump heating, steam secondary heating and condensing refrigeration functions, without the need for additional refrigeration units or independent boilers, significantly reducing equipment investment and floor space, and realizing hot and cold dual-mode switching and integrated operation.

[0039] In this invention, a low-temperature heat pump is used for preheating, medium-temperature steam is flashed, and then heated again by a boiler. In combination with a microchannel heat exchange and phase-change cold storage module, low-grade thermal energy and waste heat are recovered to the maximum extent, thereby increasing the system coefficient of performance (COP) to approximately 4.0, saving more than 10% energy compared to traditional boilers or heat pump units.

[0040] In the present invention, the honeycomb composite phase change material absorbs heat and stores cold during periods of low electricity prices or low loads, and releases cold energy to assist condensation during peak periods, thereby smoothing out instantaneous load fluctuations, reducing the number of high-power starts of compressors and boilers, and reducing operating costs by about 15%.

[0041] The present invention arranges five high-precision temperature sensors in the flash tank, cold storage tank, condensing section, boiler outlet and inside the still, and adopts a layered coarse adjustment + fine adjustment PID strategy to lock the temperature inside the still at 98°C±0.2°C, ensuring the distillation efficiency and the stable release of wine aroma components, and improving the wine yield by about 5%.

[0042] This intelligent control system collects temperature, flow, and valve position data in real time, automatically adjusting the compressor, boiler, water pump, and electronic valves without manual intervention. The nanoscale anti-scaling coating and thermally conductive housing design reduce scaling and maintenance frequency, extending equipment life and reducing operating costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] Figure 1 This is a schematic diagram of automatic wine distillation equipment.

[0044] Figure 2 This is a schematic diagram of the automatic wine distillation equipment (excluding some racks).

[0045] Figure 3 This is a schematic diagram of the automatic wine distillation equipment (the lid connection is in the raised state).

[0046] Figure 4 This is a schematic diagram of the automatic wine distillation equipment (the lid connection part is moving).

[0047] Figure 5 Schematic diagram of the condensing device.

[0048] Figure 6 This is a schematic diagram of the condensing device from another angle.

[0049] Figure 7 A cross-sectional view of the condensing device.

[0050] Figure 8 Schematic diagram of the flash tank.

[0051] Figure 9 Schematic diagram of the cold storage tank.

[0052] Figure 10 Schematic diagram of the steam secondary heating device and heat exchange shell combination.

[0053] Figure 11 This is a schematic diagram of a wine distillation kettle. DETAILED DESCRIPTION

[0054] The invention will be further described below with reference to the accompanying drawings and embodiments:

[0055] Example, combined with Figures 1 to 11As shown, an improved heat pump system with heating and cooling functions includes a heat pump device 1, a condensing 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 group of heat pump components, and the heat pump components include a compressor 11, an evaporator 12, an expansion valve 14 and a condenser 13 connected in sequence. The compressor 11 is provided with a variable frequency drive module for real-time adjustment of the speed of the compressor 11.

[0056] The flash tank 3 is provided with a second circulating water inlet 31 and a first steam port 32 . The condenser 13 is placed in the flash tank 3 . The flash tank 3 is provided with a first temperature sensor 10 .

[0057] 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 in the cold storage tank 4. A plurality of honeycomb phase change material units 43 are embedded inside the cold storage tank 4 and around the coil of the evaporator 12. The cold storage tank 4 has a built-in second temperature sensor 20.

[0058] The condensing device 2 includes a heat exchange tank 21, which has a heat exchange tube 22 built in. 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 out of the heat exchange tank 21 to form a cooling inlet 221, and the lower end of the heat exchange tube 22 extends out of the heat exchange tank 21 to form a cooling outlet 222. The outer wall of the heat exchange tank 21 is provided with an external water source inlet 211, a first circulating water inlet 212 and a first circulating water outlet 213 connected to the heat exchange channel 23, and the heat exchange tube 22 has a built-in third temperature sensor 30.

[0059] The external water source inlet 211 and the first circulating water inlet 212 are both provided with flow sensors, and the external water source inlet 211 is provided with an electronic control valve for controlling the opening degree of the external water source inlet 211 .

[0060] The inlet of the water pump 5 is connected to the first circulating water outlet 213 , the outlet of the water pump 5 is connected to the second circulating water inlet 31 , the outlet of the water pump 5 is connected to the third circulating water inlet 41 , and the fourth circulating water outlet 42 is connected to the first circulating water inlet 212 .

[0061] 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 in the inner cavity of the boiler 61. The boiler 61 has a steam secondary heating inlet 611 and a steam secondary heating outlet 612. The fourth temperature sensor 40 is arranged in the inner cavity of the boiler 61 and close to the steam secondary heating outlet 612.

[0062] The first steam port 32 is communicated with the steam secondary heating inlet 611 , and the steam secondary heating outlet 612 discharges hot steam used for heating.

[0063] The compressor 11, the heating pipe 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 an intelligent control system (not shown in the figure).

[0064] Furthermore, each honeycomb phase change material unit 43 is filled with a composite phase change material and heat-sealed with an aluminum-plastic composite film to form a cold storage module unit.

[0065] The composite phase change material includes n-tetradecane and nano-graphene oxide, wherein the mass fraction of the n-tetradecane is 95-98%, the mass fraction of the nano-graphene oxide is 2-5%, and the particle size of the nano-graphene oxide ranges from 50 to 200 nanometers. The n-tetradecane and nano-graphene oxide are mixed by high-speed stirring and ultrasonic dispersion technology to prepare the composite phase change material.

[0066] Furthermore, 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 to 1.2 mm and a depth of 0.3 to 0.8 mm. The grooves 231 are arranged in a cross or spiral shape.

[0067] Furthermore, a heat exchange shell 7 is also included, and the heat exchange shell 7 is tightly attached to the boiler 61 through a heat-conducting adhesive 72. A plurality of heat-conducting columns 71 are provided inside the heat exchange shell 7. The ends of the heat-conducting columns 71 pass through the heat exchange shell 7 and extend into the flash tank 3. The heat exchange shell 7 is filled with a liquid heat-conducting medium, and the liquid heat-conducting medium covers the heat-conducting columns 71 and contacts the inner wall of the heat exchange shell 7.

[0068] The heat generated by the boiler 61 preheats the water in the flash tank 3 through the heat-conducting glue 72 , the heat exchange shell 7 , the liquid heat-conducting medium and the heat-conducting column 71 .

[0069] Furthermore, the heat exchange tank 21 is built with an upper partition 24 and a lower partition 25 , which separate the heat exchange tank 21 into a heat exchange tank upper portion 251 , a heat exchange tank middle portion 252 and a heat exchange tank lower portion 253 .

[0070] The upper portion 251 of the heat exchange tank has a built-in first heat exchange coil 26 , the cooling inlet 221 is connected to the upper portion 251 of the heat exchange tank, the fourth circulating water outlet 42 is connected to the first heat exchange coil inlet 261 , and the inlet of the water pump 5 is connected to the first heat exchange coil outlet 262 .

[0071] The heat exchange tubes 22 are arranged at intervals in the middle part 252 of the heat exchange tank. The upper ports of the heat exchange tubes 22 pass through the upper partition 24 to connect to the upper part 251 of the heat exchange tank, and the lower ports of the heat exchange tubes 22 pass through the lower partition 25 to connect to the lower part 253 of the heat exchange tank. The 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.

[0072] The lower portion 253 of the heat exchange tank has a built-in second heat exchange coil 27 , the cooling outlet 222 is connected to the lower portion 253 of the heat exchange tank, the fourth circulating water outlet 42 is connected to the second heat exchange coil inlet 271 , and the inlet of the water pump 5 is connected to the second heat exchange coil outlet 272 .

[0073] Furthermore, the upper partition 24 and the lower partition 25 are both perforated partitions with multiple through holes 241, the diameter of the through holes is 3mm to 10mm, the upper port of the heat exchange tube 22 passes through the through hole 241 corresponding to the upper partition 24 and extends into the upper part 251 of the heat exchange tank, and the lower port of the heat exchange tube 22 passes through the through hole 241 corresponding to the lower partition 25 and extends into the lower part 253 of the heat exchange tank, and the inner wall of the through hole 241 and the outer wall of the heat exchange tube 22 are filled with sealant.

[0074] The diameter of the first heat exchange coil 26 is Φ16mm-Φ20mm, and the diameter of the second heat exchange coil 27 is Φ10mm-Φ14mm.

[0075] The inner surface of the heat exchange tank 21 and the outer wall of the heat exchange coil are coated with a nano-composite anti-scaling coating with a hydrophilic and scale-repellent function, and the thickness of the coating is 5 μm to 20 μm.

[0076] An automatic wine distilling device also includes a wine distilling kettle 8, which is equipped with a wine mash storage area 81 and a wine aroma steam discharge area 82. The wine mash storage area 81 is located below the wine aroma steam discharge area 82, and the wine mash storage area 81 and the wine aroma steam discharge area 82 are connected. A second steam port 811 connected to the wine mash storage area 81 is opened at the bottom of the wine distilling kettle 8, and a third steam port 821 connected to the wine aroma steam discharge area 82 is opened at the top of the wine distilling kettle 8. The wine distilling kettle 8 is equipped with a fifth temperature sensor 50.

[0077] The steam secondary heating outlet 612 is connected to the second steam outlet 811 , the third steam outlet 821 is connected to the cooling inlet 221 , and the fifth temperature sensor 50 is connected to the intelligent control system.

[0078] Furthermore, the wine distiller 8 includes a pot cover 83 and a pot body 84, the pot cover 83 is detachably fastened to the pot body 84, the pot cover 83 is provided with the third steam port 821, the bottom of the pot body 84 is provided with the second steam port 811, and a partition 85 for placing wine mash is provided above the second steam port 811, and the partition 85 separates the wine distiller 8 into a wine mash storage area 81 and a wine aroma steam discharge area 82.

[0079] Furthermore, it also includes a frame 86 and an electric swing arm device 87. The heat pump system and the condensing 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 cover connection part 876. The vertical frame 871 is rotatably arranged on the frame 86. The motor 873 is arranged on the frame 86. The rotating shaft of the motor 873 is connected to the vertical frame 871. One end of the horizontal frame 872 is connected to the vertical frame 87 in a sliding manner. 1. 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. 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 cover connecting part 876 is fixed on the pot cover 83. The telescopic rod of the cylinder 874 is connected to the pot cover connecting 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 electrically connected to the intelligent control system respectively.

[0080] A wine distillation method comprises the following steps:

[0081] Step 1: Start the cylinder 874 through the control panel 9. The telescopic rod of the cylinder 874 drives the pot cover 83 to rise through the pot cover connection part 876, so that the pot cover 83 and the pot body 84 are separated. 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 cover 83 to move, so that the pot cover 83 leaves the pot body 84. At this time, the user can add fermented mash to the mash storage area 81 of the distillation kettle 8.

[0082] 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 cover 83 to move, so that the pot cover 83 is 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 cover 83 to descend through the pot cover connecting part 876, so that the pot cover 83 and the pot body 84 are buckled together.

[0083] Step 3: Start the electronic control valve through the control panel 9, and 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, and the water pump 5 pumps the water in the heat exchange channel 23 into the flash tank 3 and the cold storage tank 4 respectively.

[0084] Step 4: 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.

[0085] Step 5: After 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 distillation kettle 8 along 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.

[0086] Step six, the wine aroma vapor enters the inner cavity of the upper part 251 of the heat exchange tank along the third steam port 821 and the cooling inlet 221, and the water of the first heat exchange coil 26 exchanges heat with the wine aroma vapor in the inner cavity of the upper part 251 of the heat exchange tank, and the wine aroma vapor in the inner cavity of the upper part 251 of the heat exchange tank is heat exchanged to form high-temperature wine liquid.

[0087] 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 252 of the middle part 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.

[0088] 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 vapor 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 becomes low-temperature wine liquid and flows out to the cooling outlet 222 and is collected.

[0089] 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.

[0090] The circulating water enters the flash tank 3 through the second circulating water inlet 31. Since the temperature of the circulating water is higher than that of normal temperature water, the heat generated by the condenser 13 heats the circulating water in the flash tank 3 to quickly form steam, thereby improving the steam formation efficiency.

[0091] The circulating water enters the cold storage tank 4 through the third circulating water inlet 41 , and the evaporator 12 and the honeycomb phase change material unit 43 cool the circulating water to form cold water.

[0092] The cold water flows along the fourth circulating water outlet 42 and the first circulating water inlet 212 into the heat exchange channel 23 .

[0093] The other path of the cold water flows along the fourth circulating water outlet 42 and enters the first heat exchange coil 26 .

[0094] The other path of the cold water flows along the fourth circulating water outlet 42 and enters the second heat exchange coil 27 .

[0095] Step 10: After the automatic wine distillation equipment is started, steps 3 to 8 will work in a cycle.

[0096] Step 11: The intelligent control system starts the heat pump system at night or during off-peak hours according to the operating load and electricity price strategy. The evaporator 12 releases cold energy, allowing the honeycomb phase change material unit 43 of the cold storage tank 4 to collect cold energy and store it as latent heat during the low electricity price period, thereby realizing cold energy storage. The cold energy is released during the peak wine distilling period to assist the condensation circuit, reduce instantaneous power demand and improve overall energy efficiency.

[0097] The specific embodiments of the present invention are as follows, but the present invention is not limited to these embodiments.

[0098] The main components and parameters of the system are as follows:

[0099] Compressor 11 (model HBP-50VF): rated power 50kW, frequency range 30–60Hz, coefficient of performance (COP) approximately 4.2.

[0100] Heat pump evaporator 12 coils: Φ16mm stainless steel microchannel plate, with multiple 0.8×0.5mm micro grooves 231 arranged on the surface, and the coils are covered with honeycomb phase change material units 43 to enhance heat exchange efficiency.

[0101] Honeycomb phase change material unit 43: Made of n-tetradecane (mass fraction 95–98%) and 2% nanographene oxide, with a melting point of approximately 6°C and a latent heat of approximately 180 kJ / kg. The module size is 200×200×50 mm.

[0102] Flash tank 3 (with built-in first temperature sensor 10T1): tank diameter 400mm, height 800mm, circulating water volume 100L, used for primary steam separation and heat energy release.

[0103] Boiler 61 (secondary heating device, with built-in fourth temperature sensor 40T4): Model BR-100, electric heating power 100kW, used to reheat the flash steam to a high temperature.

[0104] Heat exchange tank 21 (with built-in third temperature sensor 30T3): Dimensions: 600×400×300mm, with two Φ12mm stainless steel microchannel heat exchange tubes 22 built in to achieve efficient steam condensation and waste heat recovery.

[0105] Cold storage tank 4 (with built-in second temperature sensor 20T2): The tank body has a diameter of 300 mm and a height of 600 mm, and is equipped with a 20 kg honeycomb PCM module for cold energy storage and slow release.

[0106] Intelligent control system: Based on STM32+PLC, 10Hz data sampling and PID algorithm closed-loop control, integrated SCADA monitoring and remote communication functions.

[0107] Water pump 5 (with built-in flow sensor): Model WP-15, rated flow rate 10m³ / h, head 15m, used to drive circulating water through each heat exchange unit.

[0108] Step 1: Initialization and calibration

[0109] When the system is powered on, the intelligent control system reads the current values of the T1–T5 temperature sensors in sequence and performs linear calibration to eliminate sensor errors.

[0110] The frequency of the compressor 11 is set to 30 Hz, the power of the boiler 61 is set to 20 kW, the flow rate of the water pump 5 is set to 10 m^3 / h, and the opening of the electronic valve is 40%.

[0111] Step 2: Add materials

[0112] Add 200 kg of fermented mash to mash storage area 81 of distillation kettle 8, cover and lock lid 83. T5 (temperature inside kettle) is initially ≈ 25°C.

[0113] Step 3: Roughly adjust the temperature

[0114] The controller starts the heat pump compressor 11 and linearly increases the frequency from 30 Hz to 50 Hz. The power of the heating tube 62 of the boiler 61 is increased to 80 kW.

[0115] T1 (water temperature in flash tank 3) rises from 25°C to 80°C, and T4 (steam at the outlet of boiler 61) rises to 120°C, which takes about 90s.

[0116] Step 4: Fine-tune the temperature

[0117] When T5 rises to 97.5°C, switch to fine-tuning mode:

[0118] The frequency of compressor 11 is fine-tuned to 48–52 Hz.

[0119] The power of boiler 61 is fine-tuned to 78–82kW.

[0120] The electronic valve opening is fine-tuned to 38–42%.

[0121] The flow rate of water pump 5 is fine-tuned to 9.5–10.5 m^3 / h.

[0122] Keep T5 fluctuating within 98°C±0.2°C.

[0123] Step 5: Steaming and Distillation

[0124] The medium-temperature steam generated by the flash tank 3 enters the boiler 61 through the first steam port 32 and the steam secondary heating inlet 611 for secondary heating to generate high-temperature steam of 120°C.

[0125] The high-temperature steam enters the wine distiller 8 from the steam secondary heating outlet 612 of the boiler 61, contacts the wine mash and evaporates to generate wine-aroma steam.

[0126] T5 was stabilized at 98°C and the distillation process lasted for 30 min.

[0127] Step 6: Condensate recovery and waste heat preheating

[0128] The wine aroma vapor is discharged from the third steam port 821 and enters the heat exchange tank 21 through the cooling inlet 221, and T3 is maintained at 12°C±0.3°C.

[0129] The condensed wine flows out from the cooling outlet 222, and about 15L of wine is collected.

[0130] The heat released by condensation is recovered to the circulating water, which is preheated to 60°C and then enters the flash tank 3 through the second circulating water inlet 31. T1 is maintained at 80°C±0.5°C.

[0131] Step 7: Energy Storage for Peak Shaving

[0132] During the nighttime off-peak period (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 phase change under the T2 environment to complete cold storage.

[0133] During the peak wine distilling period the next day, the honeycomb phase change material unit 43 is called upon to release cold energy to assist T3 in temperature control.

[0134] The temperature in the wine still 8 is stabilized at 98°C ± 0.2°C.

[0135] The distillation yield increased by 5% and energy consumption decreased by 10%.

[0136] The COP of the whole machine is ≈4.0, with significant energy saving effect.

[0137] This system utilizes a hybrid energy-saving architecture combining heat pump, secondary steam heating, phase change cold storage, and intelligent control. The heat pump first heats low-temperature water to medium-temperature steam, which is then fed into boiler 61 for secondary heating to the high temperature required for distilling liquor. This minimizes the need for independent operation of boiler 61. The honeycomb-shaped composite phase change material within cold storage tank 4 absorbs heat and stores energy at night or during periods of low electricity prices. During peak hours, it releases cooling energy to assist with steam condensation, achieving staggered heating and cooling loads. The intelligent control system monitors five-way temperature and flow data in real time, dynamically adjusting compressor 11 frequency, water pump 5 flow, and boiler 61 power. This ensures coordinated optimization of all subsystems, significantly improving COP and reducing energy consumption and operating costs.

[0138] Precise temperature control is achieved by placing first through fifth temperature sensors 50 in the flash tank 3, cold storage tank 4, condensing section, boiler 61 outlet, and still 8, forming a multi-point closed loop. First, the compressor 11 frequency conversion and boiler 61 coarse adjustment rapidly raise the key node to the target zone. Then, electronic valves, pump flow, and fine-tuning frequency conversion provide fine adjustments, stabilizing the still temperature at 98°C ± 0.2°C and avoiding overshoot and fluctuation. This method ensures consistent wine quality, reduces raw material waste, shortens the distillation cycle, and enables fully automated operation without the need for human intervention.

[0139] The terms "first", "second", etc. used in the present invention do not indicate any order, quantity or importance, but are only used for distinction.

[0140] As used herein, terms such as "a" and "an" do not limit quantity but rather indicate the presence of at least one of the referenced object. Terms indicating orientation or position, such as "top," "bottom," "side," "longitudinal," "lateral," "middle," "center," "outer," "inner," "horizontal," "vertical," "left," "right," "above," and "below," are intended to reflect relative positions, not absolute positions.

[0141] The above-described embodiments merely illustrate several implementations of the present invention, and while their descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art would be able to make numerous variations and improvements without departing from the spirit of the present invention, all of which fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be determined by the appended claims.

Claims

1. An improved heat pump system with heating and cooling functions, comprising a heat pump device, a condensing 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 set of heat pump components, which include a compressor, an evaporator, an expansion valve and a condenser connected in sequence, and the compressor is provided with a variable frequency drive module for adjusting the compressor speed in real time; The flash tank is provided with a second circulating water inlet and a first steam port, the condenser is placed in the flash tank, and the flash tank is built with a first temperature sensor; The cold storage tank is provided with a third circulating water inlet and a fourth circulating water outlet, the evaporator is placed in the cold storage tank, a plurality of honeycomb phase change material units are embedded inside the cold storage tank and around the coil of the evaporator, and the cold storage tank is equipped with a second temperature sensor; The condensing device includes a heat exchange tank, a heat exchange tube is built into 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, the outer wall of the heat exchange tank is opened with an external water source inlet, a first circulating water inlet and a first circulating water outlet connected to the heat exchange channel, and the heat exchange tube is built into the third temperature sensor; The external water source inlet and the first circulating water inlet are both provided with flow sensors, and the external water source inlet is provided with an electronic control valve for controlling the opening degree of the external water source inlet; The inlet of the water pump is connected to the first circulating water outlet, one path of the outlet of the water pump is connected to the second circulating water inlet, another path of the outlet of the water pump is connected to the third circulating water inlet, and the fourth circulating water outlet is connected to the first circulating water inlet; The steam secondary heating device includes a boiler, a heating pipe and a fourth temperature sensor, wherein the heating pipe is arranged in the inner cavity of the boiler, the boiler has a steam secondary heating inlet and a steam secondary heating outlet, and the fourth temperature sensor is arranged in the inner cavity of the boiler and close to the steam secondary heating outlet; The first steam port is in communication with the steam secondary heating inlet, and the steam secondary heating outlet discharges hot steam for heating; The compressor, heating pipe, water pump, first temperature sensor, second temperature sensor, third temperature sensor, fourth temperature sensor, flow sensor, electronic control valve and variable frequency drive module are respectively connected to the intelligent control system; Each honeycomb phase change material unit is filled with a composite phase change material and heat-sealed with an aluminum-plastic composite film to form a cold storage module unit; The composite phase change material comprises n-tetradecane and nano-graphene oxide, wherein the mass fraction of the n-tetradecane is 95-98%, the mass fraction of the nano-graphene oxide is 2-5%, and the particle size of the nano-graphene oxide is in the range of 50-200 nanometers. The n-tetradecane and nano-graphene oxide are mixed by high-speed stirring and ultrasonic dispersion technology to prepare the composite phase change material; 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 to 1.2 mm and a depth of 0.3 to 0.8 mm. The grooves are arranged in a cross or spiral shape.

2. The improved heat pump system with heating and cooling functions according to claim 1, characterized in that: The heat exchanger further comprises a heat exchange shell, the heat exchange shell being attached to the boiler via heat conductive adhesive, a plurality of heat conductive columns being provided inside the heat exchange shell, the ends of the heat conductive columns passing through the heat exchange shell and extending into the flash tank, the heat exchange shell being filled with a liquid heat conductive medium, the liquid heat conductive medium coating the heat conductive columns and contacting 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 glue, the heat exchange shell, the liquid heat-conducting medium and the heat-conducting column.

3. The improved heat pump system with heating and cooling functions according to claim 1, characterized in that: The heat exchange tank is built with an upper partition and a lower partition, which 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 built into the upper portion of the heat exchange tank, the cooling inlet is connected to the upper portion of the heat exchange tank, the fourth circulating water outlet is connected to the inlet of the first heat exchange coil, and the inlet of the water pump is connected to the outlet of the first heat exchange coil; The heat exchange tubes are arranged at intervals in the middle of the heat exchange tank, the upper ports of the heat exchange tubes pass through the upper partition plate to communicate with the upper part of the heat exchange tank, and the lower ports of the heat exchange tubes pass through the lower partition plate to communicate with the lower part of the heat exchange tank, and the heat exchange channel is formed between the inner cavity in the middle of the heat exchange tank and the heat exchange tubes; A second heat exchange coil is built into the lower portion of the heat exchange tank, the cooling outlet is connected to the lower portion of the heat exchange tank, the fourth circulating water outlet is connected to the inlet of the second heat exchange coil, and the inlet of the water pump is connected to the outlet of the second heat exchange coil.

4. The improved heat pump system with heating and cooling functions according to claim 3, characterized in that: The upper and lower partitions are both perforated partitions with multiple through holes, the diameter of the through holes is 3mm to 10mm, the upper end of the heat exchange tube passes through the corresponding through hole of the upper partition and extends into the upper part of the heat exchange tank, and the lower end of the heat exchange tube passes through the corresponding through hole of the lower partition and extends into the lower part of the heat exchange tank, and the inner wall of the through hole and the outer wall of the heat exchange tube are filled with sealant; The diameter of the first heat exchange coil is Φ16mm-Φ20mm, and the diameter of the second heat exchange coil is Φ10mm-Φ14mm; The inner surface of the heat exchange tank and the outer wall of the heat exchange coil are coated with a nano-composite anti-scaling coating with a hydrophilic and scale-repellent function, and the thickness of the coating is 5 μm to 20 μm.

5. An automatic wine distillation device comprising the improved heat pump system with heating and cooling functions according to any one of claims 1 to 4, characterized in that: The still further comprises a wine still, wherein the wine still has a wine mash storage area and a wine aroma steam discharge area therein, the wine mash storage area is located below the wine aroma steam discharge area, the wine mash storage area and the wine aroma steam discharge area are connected, a second steam port connected to the wine mash storage area is formed at the bottom of the wine still, a third steam port connected to the wine aroma steam discharge area is formed at the top of the wine still, and a fifth temperature sensor is built into the wine still; 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.

6. The automatic wine distilling equipment according to claim 5, characterized in that: The wine distiller comprises a pot cover and a pot body, the pot cover is detachably fastened to the pot body, the pot cover is provided with the third steam port, the bottom of the pot body is provided with the second steam port, a partition for placing wine mash is provided above the second steam port, and the partition separates the wine distiller into a wine mash storage area and a wine aroma steam discharge area.

7. The automatic wine distilling equipment according to claim 6, characterized in that: 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 connected to the vertical frame in a sliding manner, 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 cylinder are electrically connected to the intelligent control system respectively.

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