An energy-saving integrated heating and cooling system

Abstract

This application provides an energy-saving dual-channel heating and cooling integrated machine, comprising: a cooling component, a heating component, and a compression component; the compression component includes a compressor, a low-pressure pipe assembly, and a high-pressure pipe assembly; the low-pressure pipe assembly is connected to the cooling component and to the air inlet of the compressor; the high-pressure pipe assembly is connected to the heating component and to the air outlet of the compressor. When cooling the material tank and hydraulic station of a high-pressure foaming machine, this integrated machine collects the heat generated by the cooling component (such as the material tank and hydraulic station), and instead of directly discharging it into the surrounding environment, transfers it to the heating component for heating the foaming fixture. Ultimately, the heat generated by the cooling component is transferred to the foaming fixture, reducing equipment energy consumption and heat emissions into the surrounding environment, thus achieving energy saving and carbon reduction. This energy-saving dual-channel heating and cooling integrated machine is suitable for production sites requiring simultaneous heating and cooling, such as high-pressure foaming and vacuum forming, and has good practicality and is easy to promote.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of refrigerator production and manufacturing, and more particularly to an energy-saving heating and refrigeration dual-channel integrated machine. BACKGROUND

[0002] In the production and manufacturing process of a refrigerator, not only complex assembly processes are involved, but also multiple key process steps, and the equipment used in these steps often needs both heating and refrigeration functions to meet the requirements of material processing, molding and performance optimization, such as high-pressure foaming equipment, vacuum forming equipment, etc.

[0003] Specifically, the foaming fixture needs to be heated during the production process, and the heating equipment currently used is an electric heating tube type mold temperature controller. When the high-pressure foaming machine is running, the raw material tank and the hydraulic station will generate heat, which needs to be cooled by a refrigeration device. At present, most of the air-cooled water chiller units are used to discharge the heat generated by the heat points such as the material tank and the hydraulic station to the surrounding environment.

[0004] However, in high-temperature weather, the ambient temperature is high, and the production process heating and refrigeration equipment generates a lot of heat, which will cause the temperature in the production workshop to rise quickly and the working environment to be poor. The opening of air conditioners in the foaming enclosure and other areas to cool the production area will eventually discharge a large amount of heat energy to the outdoor environment, which is not conducive to ecological environment protection. SUMMARY

[0005] To solve the problem of the production process heating and refrigeration equipment generating a lot of heat, which will cause the temperature in the production workshop to rise quickly and the working environment to be poor. The opening of air conditioners in the foaming enclosure and other areas to cool the production area will eventually discharge a large amount of heat energy to the outdoor environment.

[0006] The present application provides an energy-saving heating and refrigeration dual-channel integrated machine, comprising: a refrigeration assembly, a heating assembly and a compression assembly;

[0007] The compression assembly comprises a compressor, a low-pressure pipe group and a high-pressure pipe group;

[0008] The low-pressure pipe group is in communication with the refrigeration assembly and the gas inlet end of the compressor;

[0009] The high-pressure pipe group is in communication with the heating assembly and the gas outlet end of the compressor;

[0010] The end of the low-pressure pipe group away from the compressor is connected to the end of the high-pressure pipe group away from the compressor.

[0011] In a feasible implementation manner, the refrigeration assembly comprises: a cold water tank, a cold water pump and a first cold heat exchanger;

[0012] The low-pressure pipe group is in communication with the first cold-heat exchanger;

[0013] The water outlet of the cold water tank is in communication with the water inlet of the cold water pump, the water outlet of the cold water pump is in communication with the water inlet of the first cold-heat exchanger, and the water outlet of the first cold-heat exchanger is in communication with the water inlet of the cold water tank;

[0014] The first cold-heat exchanger is configured to cool the device.

[0015] In an implementable manner, the heating assembly comprises a hot water tank, a hot water pump and a second cold-heat exchanger;

[0016] The high-pressure pipe group is in communication with the second cold-heat exchanger;

[0017] The water outlet of the hot water tank is in communication with the water inlet of the hot water pump, the water outlet of the hot water pump is in communication with the water inlet of the second cold-heat exchanger, and the water outlet of the second cold-heat exchanger is in communication with the water inlet of the hot water tank;

[0018] The second cold-heat exchanger is configured to heat the mold.

[0019] In an implementable manner, further comprising an air heat exchanger, and the high-pressure pipe group further comprises a heating three-way valve and a liquid accumulator;

[0020] The heating three-way valve has a heating first end, a heating second end and a heating third end;

[0021] The heating first end is in communication with the gas outlet end of the compressor, the heating second end is in communication with the heat outlet end of the second cold-heat exchanger, the heating third end is in communication with the heat inlet end of the air heat exchanger, the heat outlet end of the air heat exchanger is in communication with the liquid accumulator, and the liquid accumulator is in communication with the heat inlet end of the second cold-heat exchanger.

[0022] In an implementable manner, further comprising a gas-liquid separator, and the low-pressure pipe group comprises a refrigeration three-way valve and an electronic expansion valve;

[0023] The refrigeration three-way valve has a refrigeration first end, a refrigeration second end and a refrigeration third end;

[0024] One end of the electronic expansion valve is in communication with the liquid accumulator, and the other end is in communication with the refrigeration first end, the refrigeration second end is in communication with the cold quantity inlet end of the first cold-heat exchanger, and the refrigeration third end is in communication with the cold quantity outlet end of the air heat exchanger;

[0025] The cold heat exchanger is further connected with the air heat exchanger, and the air heat exchanger is further connected with the gas-liquid separator.

[0026] In an implementation, the air heat exchanger is further provided with a fan.

[0027] The fan is configured to discharge cold heat or hot heat into the air heat exchanger.

[0028] In an implementation, the system further comprises a temperature sensor group, which comprises a heating temperature sensor and a refrigeration temperature sensor.

[0029] and a control system electrically connected with the compressor, the heating three-way valve, the refrigeration three-way valve and the temperature sensor group.

[0030] The heating temperature sensor is arranged at a water outlet of the hot water tank or the second cold heat exchanger, and is configured to detect a hot water temperature to obtain hot water temperature data and feed back to the control system.

[0031] The refrigeration temperature sensor is arranged near a water outlet of the cold water tank or the first cold heat exchanger, and is configured to detect a cold water temperature to obtain cold water temperature data and feed back to the control system.

[0032] The control system is configured to receive the hot water temperature data and the cold water temperature data.

[0033] When the hot water temperature data is higher than a preset upper limit of a heating temperature and the cold water temperature data is higher than a preset lower limit of a refrigeration temperature, it is determined that excess heat needs to be discharged, and a heat discharge operation is performed.

[0034] When the cold water temperature data is lower than the preset lower limit of the refrigeration temperature and the hot water temperature data is lower than the preset upper limit of the heating temperature, it is determined that excess cold heat needs to be discharged, and a cold heat discharge operation is performed.

[0035] In an implementation, the heat discharge operation comprises controlling the heating three-way valve to be opened and the refrigeration three-way valve to be closed.

[0036] The cold heat discharge operation comprises controlling the refrigeration three-way valve to be opened and the heating three-way valve to be closed.

[0037] In an implementation, the control system is further electrically connected with the electronic expansion valve.

[0038] The control system is further configured to determine that refrigeration operation is needed when the hot water temperature data is lower than the preset lower limit of the heating temperature and the cold water temperature data is higher than the preset lower limit of the cooling temperature.

[0039] The refrigeration operation is to control the refrigeration three-way valve to be opened, control the heating three-way valve to be closed, and control the electronic expansion valve to be opened to control the cold quantity flow.

[0040] In an available implementation, the temperature sensor group further comprises a heat exchanger temperature sensor.

[0041] The heat exchanger temperature sensor is arranged inside the air heat exchanger, used to detect the temperature inside the air heat exchanger, obtain heat exchanger temperature data, and feed back to the control system.

[0042] The control system is further configured to receive the heat exchanger temperature data.

[0043] When the heating three-way valve is opened and the refrigeration three-way valve is closed, if the heat exchanger temperature data is higher than the preset heat discharge temperature, the fan is controlled to be opened to discharge the excess heat into the air heat exchanger, and if the heat exchanger temperature data is lower than the preset heat discharge temperature, the fan is controlled to be closed.

[0044] When the heating three-way valve is opened and the refrigeration three-way valve is closed, if the heat exchanger temperature data is lower than the preset cold quantity discharge temperature, the fan is controlled to be opened to discharge the excess cold quantity into the air heat exchanger, and if the heat exchanger temperature data is higher than the preset cold quantity discharge temperature, the fan is controlled to be closed.

[0045] From the above, the application provides an energy-saving heating and refrigeration dual-channel all-in-one machine. When cooling the material tank and hydraulic station of a high-pressure foaming machine, the heat generated by the refrigeration assembly (such as the material tank and the hydraulic station) is collected and transferred to the heating assembly for heating the foaming clamp. Finally, the heat generated by the refrigeration assembly is transferred to the foaming clamp, reducing the energy loss of the equipment and the heat discharged to the surrounding environment, achieving the purpose of energy saving and carbon reduction. The energy-saving heating and refrigeration dual-channel all-in-one machine can be applied to production sites that need both heating and refrigeration, such as high-pressure foaming and plastic suction, has good practicability, and is easy to popularize. BRIEF DESCRIPTION OF DRAWINGS

[0046] The accompanying drawings, which are incorporated herein and constitute part of this specification, illustrate embodiments consistent with the present application and, together with the description, further serve to explain the principles of embodiments of the application. It is to be understood that the drawings are only schematic, and that they do not necessarily represent a limiting case of the application. For a better understanding of the present application, reference will now be made to the accompanying drawings, in which:

[0047] Figure 1 is a structural schematic diagram of an energy-saving heating and refrigeration dual-channel integrated machine according to an embodiment of the present application;

[0048] Figure 2 is a structural schematic diagram of an energy-saving heating and refrigeration dual-channel integrated machine according to another embodiment of the present application.

[0049] BRIEF DESCRIPTION OF DRAWINGS

[0050] 100 - refrigeration assembly; 200 - heating assembly; 300 - compression assembly; 400 - air heat exchanger; 500 - gas-liquid separator; 600 - temperature sensor group;

[0051] 110 - cold water tank; 120 - cold water pump; 130 - first cold heat exchanger; 210 - hot water tank; 220 - hot water pump; 230 - second cold heat exchanger; 310 - compressor; 320 - low-pressure pipe group; 330 - high-pressure pipe group; 410 - fan; 610 - heating temperature sensor; 620 - refrigeration temperature sensor; 630 - heat exchanger temperature sensor;

[0052] 331 - heating three-way valve; 332 - liquid accumulator; 321 - refrigeration three-way valve; 322 - electronic expansion valve. DETAILED DESCRIPTION

[0053] Example implementations will now be described with reference to the drawings; however, these implementations are merely examples of implementations of the present application and are not intended to limit the present application in any way. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the implementations of the present application. However, those skilled in the art will recognize that the implementations of the present application can be practiced without the specific details given herein. In other instances, well-known methods, procedures and components have not been described in detail so as not to unnecessarily obscure aspects of the implementations of the present application.

[0054] The foaming fixture needs to be heated during production, and the heating equipment currently adopted is an electric heating tube type mold temperature machine. When the high-pressure foaming machine is running, the raw material tank and the hydraulic station and the like will generate heat, and a refrigeration device needs to be used for cooling. Currently, a majority of air-cooled water chillers are used to discharge the heat generated by the heat generating points such as the raw material tank and the hydraulic station to the surrounding environment. Especially in high-temperature weather, the ambient temperature is high, and the heating and refrigeration devices generate a large amount of heat during the production process, causing the temperature in the production workshop to rise rapidly, and the working environment is poor. The air conditioning in the foaming enclosure and the like is started to cool the production area, and finally a large amount of heat energy is discharged to the outdoor environment, which is not conducive to ecological environment protection.

[0055] To solve the above problems, an energy-saving heating and refrigeration dual-channel all-in-one machine is provided, as shown in Figure 1 The refrigeration assembly 100, the heating assembly 200 and the compression assembly 300 are provided. The compression assembly 300 includes a compressor 310, a low-pressure pipe group 320 and a high-pressure pipe group 330.

[0056] Specifically, the refrigeration assembly 100 is used for the cooling process and is generally composed of a condenser and related refrigerant circulation pipelines. The evaporator is used to absorb the heat of the heat generating components (such as the raw material tank and the hydraulic station), and the condenser releases the absorbed heat to the outside or recovers the heat by other means. The heating assembly 200 is used for the heating process and transmits heat energy to components such as the foaming fixture which need to be provided with heat.

[0057] The compressor 310 in the compression assembly 300 serves as the power source of the refrigeration cycle and the heating cycle, and increases the pressure and temperature of the refrigerant or working medium by compression. The low-pressure pipe group 320 connects the refrigeration assembly 100 and the suction end of the compressor 310, and is used to transport the low-temperature and low-pressure refrigerant or working medium to the compressor 310. The high-pressure pipe group 330 connects the discharge end of the compressor 310 and the heating assembly 200, and is used to transport the high-temperature and high-pressure refrigerant or working medium to the next step of the heating or refrigeration cycle.

[0058] In particular, one end of the low-pressure pipe group 320 away from the compressor 310 is connected to one end of the high-pressure pipe group 330 away from the compressor 310, forming a closed loop system, allowing the refrigerant or working medium to be efficiently converted between the two cycles (refrigeration and heating), without the need for external heat energy discharge, realizing the cyclic utilization of energy.

[0059] The refrigeration process in the embodiment is as follows: when the heat generating components of the high-pressure foaming machine need to be cooled, the refrigerant absorbs heat and evaporates in the refrigeration assembly 100, and is then sucked into and compressed by the compressor 310, increasing its temperature and pressure. The high-pressure refrigerant enters the heating assembly 200 through the high-pressure pipe group 330, and releases heat to the external environment or utilizes the heat by a heat recovery mechanism.

[0060] The heating process is as follows: when the foaming fixture needs to be heated, high-pressure and high-temperature refrigerant or special working medium is directly or through a heat exchanger to transfer heat to the heating object in the heating assembly 200. At the same time, the low-pressure pipe group 320 continues to recover low-temperature medium from the evaporator end of the refrigeration cycle, maintaining the cycle.

[0061] This embodiment realizes energy conversion and recycling in the refrigeration and heating processes by designing a closed-loop system, reduces heat discharge to the external environment, and reduces the need for additional cooling equipment such as air conditioners. Because it reduces the dependence on traditional systems for power consumption and heat energy directly discharged into the atmosphere, it significantly reduces carbon emissions. At the same time, through integrated design, the overall system energy efficiency ratio is improved, and compared with independently operated heating and refrigeration equipment, energy can be more effectively managed and utilized.

[0062] In some embodiments of the present application, with reference to Figure 1 and Figure 2 The refrigeration assembly 100 includes a cold water tank 110, a cold water pump 120, and a first cold heat exchanger 130; the low-pressure pipe group 320 is in communication with the first cold heat exchanger 130, the outlet of the cold water tank 110 is in communication with the inlet of the cold water pump 120, the outlet of the cold water pump 120 is in communication with the inlet of the first cold heat exchanger 130, and the outlet of the first cold heat exchanger 130 is in communication with the inlet of the cold water tank 110; the first cold heat exchanger 130 is configured to cool the equipment.

[0063] It can be understood that the cold water tank 110 stores circulating water or other cooling medium for cooling. It is designed with an outlet and an inlet for outputting cooling medium to the cooling circulation system and receiving backflow of the cooling medium after heat exchange, respectively. The cold water pump 120 is the power source for the circulation of the cooling medium, and the inlet of the cold water pump 120 is connected to the outlet of the cold water tank 110, and the outlet thereof is in communication with the inlet of the first cold heat exchanger 130. The cold water pump 120 is responsible for pumping the cooling medium in the cold water tank 110 to the first cold heat exchanger 130 for heat exchange.

[0064] The first cold heat exchanger 130 generally has a cooling medium channel and a refrigerant channel inside, and the cooling medium (such as water) flows in the cooling medium channel, while the refrigerant circulates in the refrigerant channel. When the high-pressure and high-temperature refrigerant passes through the refrigerant channel, it releases heat to the cooling medium, thereby reducing the temperature of the refrigerant and increasing the temperature of the cooling medium. The cooled refrigerant then enters the low-pressure pipe group 320 of the compression assembly 300, ready for the next cycle. The heated cooling medium returns to the cold water tank 110 and can be cooled by natural cooling or additional heat dissipation devices for reuse. The low-pressure pipe group 320 is responsible for delivering the refrigerant cooled by the first cold heat exchanger 130 to the inlet of the compressor 310 to start a new refrigeration cycle.

[0065] The embodiment forms a closed-loop cooling system by integrating the cold water tank 110, the cold water pump 120, and the first cold heat exchanger 130, which can effectively absorb and transfer the heat generated by high-pressure foaming machines and other equipment. At the same time, by circulating the cooling medium (such as water), the problem of directly discharging heat to the surrounding environment by traditional air-cooled water chiller units is avoided. In addition, by precisely controlling the flow and temperature of the cooling medium, the temperature of the equipment can be precisely regulated, improving cooling efficiency and reducing energy waste.

[0066] The embodiment utilizes the evaporation heat absorption characteristics of the refrigerant in the first cold heat exchanger 130 to absorb the heat generated by the equipment and remove the heat through the circulating cooling medium. At the same time, the compressor 310 compresses and condenses the refrigerant, realizing the recycling of the refrigerant. By utilizing the evaporation heat absorption characteristics of the refrigerant in the first cold heat exchanger 130, the heat generated by the equipment is absorbed and removed through the circulating cooling medium. Through the closed-loop cooling system, the heat discharge to the external environment is reduced, the carbon emission is reduced, and the influence of the noise and hot air generated by the traditional air-cooled water chiller unit on the surrounding environment is avoided.

[0067] In some embodiments of the present application, continuing to refer to Figure 1 and Figure 2 As shown, the heating assembly 200 includes a hot water tank 210, a hot water pump 220, and a second cold heat exchanger 230. The high-pressure pipe group 330 is in communication with the second cold heat exchanger 230. The outlet of the hot water tank 210 is in communication with the inlet of the hot water pump 220. The outlet of the hot water pump 220 is in communication with the inlet of the second cold heat exchanger 230. The outlet of the second cold heat exchanger 230 is in communication with the inlet of the hot water tank 210. The second cold heat exchanger 230 is configured to heat the mold.

[0068] It can be understood that the hot water tank 210 stores circulating water or other heating medium for heating. It is designed with an outlet and an inlet for outputting the heating medium to the heating circulation system and receiving the heated medium backflow after heat exchange, respectively. The heating medium in the hot water tank 210 is heated to the required temperature during the heating process to provide heat energy.

[0069] The hot water pump 220 is the power source for the circulation of the heating medium. The inlet of the hot water pump 220 is connected to the outlet of the hot water tank 210, and the outlet is in communication with the inlet of the second cold heat exchanger 230. The hot water pump 220 is responsible for pumping the heating medium in the hot water tank 210 to the second cold heat exchanger 230 for heat exchange.

[0070] The second heat exchanger 230 is used to heat the mold. Inside the second heat exchanger 230, there are generally heating medium channels and refrigerant channels. The heating medium (such as water) flows in the heating medium channels, and the refrigerant circulates in the refrigerant channels. When the low-pressure and low-temperature refrigerant passes through the refrigerant channels, it absorbs heat from the heating medium, thereby increasing the temperature of the refrigerant and reducing the temperature of the heating medium. The heated refrigerant then enters the high-pressure pipe group 330 of the compression assembly 300, ready for the next cycle of heating process. The cooled heating medium returns to the hot water tank 210 and can be reheated by additional heating devices for reuse.

[0071] The embodiment integrates the hot water tank 210, the hot water pump 220, and the second heat exchanger 230 to form a closed-loop heating system, which can effectively transfer the heat energy generated by the compressor 310 to the heating medium and provide stable and efficient heating energy for the mold through the circulation of the heating medium. Further, the embodiment utilizes the condensation and heat release characteristics of the refrigerant in the second heat exchanger 230 to transfer the heat energy generated by the compressor 310 to the heating medium and provide the required heating energy for the mold through the circulation of the heating medium.

[0072] In some embodiments of the present application, continuing to refer to Figure 2 As shown in FIG. 4, the energy-saving heating and refrigeration dual-channel all-in-one machine further includes an air heat exchanger 400, and the high-pressure pipe group 330 further includes a heating three-way valve 331 and a liquid accumulator 332. The heating three-way valve 331 has a heating first end, a heating second end, and a heating third end. The heating first end is in communication with the gas outlet end of the compressor 310, the heating second end is in communication with the heat outlet end of the second heat exchanger 230, and the heating third end is in communication with the heat inlet end of the air heat exchanger 400. The heat outlet end of the air heat exchanger 400 is in communication with the liquid accumulator 332, and the liquid accumulator 332 is in communication with the heat inlet end of the second heat exchanger 230.

[0073] The air heat exchanger 400 can use ambient air as a cooling medium to absorb heat from the refrigerant through heat exchange, thereby cooling the refrigerant. The heat inlet end of the air heat exchanger 400 is connected to the heating third end of the heating three-way valve 331 to receive high-temperature and high-pressure refrigerant from the gas outlet end of the compressor 310. The heat outlet end of the air heat exchanger 400 is connected to the liquid accumulator 332 to deliver the cooled refrigerant to the liquid accumulator 332 for storage.

[0074] The heating first end, the heating second end and the heating third end of the heating three-way valve 331 can be used to switch the flow direction of the refrigerant according to the system requirement. The heating first end is in communication with the outlet end of the compressor 310 to receive the refrigerant with high temperature and high pressure; the heating second end is in communication with the heat outlet end of the second cold heat exchanger 230, and when the system is in the heating mode, the refrigerant flows to the second cold heat exchanger 230 through this path for heat exchange; and the heating third end is in communication with the heat inlet end of the air heat exchanger 400, and when the system needs to cool the refrigerant, the refrigerant is guided to the air heat exchanger 400 through this path.

[0075] The liquid accumulator 332 is used to receive the refrigerant cooled by the air heat exchanger 400 and provide the refrigerant to the heat inlet end of the second cold heat exchanger 230 when needed, to ensure the stable operation of the system.

[0076] In this embodiment, the air heat exchanger 400 and the heating three-way valve 331 are introduced to realize the flexible control of the flow direction of the refrigerant, thereby solving the problems of low heat energy utilization efficiency and complex refrigerant management in the traditional heating and refrigeration system. In the heating mode, the heating three-way valve 331 guides the refrigerant to the second cold heat exchanger 230 for heat exchange to provide heating energy for the mold; and when the refrigerant needs to be cooled, the heating three-way valve 331 is switched to the path of the air heat exchanger 400 to effectively reduce the temperature of the refrigerant by using the ambient air as the cooling medium, thereby improving the overall energy efficiency of the system.

[0077] In some embodiments of the present application, continuing to refer to Figure 2 As shown in the figure, the energy-saving heating and refrigeration dual-channel all-in-one machine further comprises a gas-liquid separator 500, and the low-pressure pipe group 320 comprises a refrigeration three-way valve 321 and an electronic expansion valve 322. The refrigeration three-way valve 321 has a refrigeration first end, a refrigeration second end and a refrigeration third end; one end of the electronic expansion valve 322 is in communication with the liquid accumulator 332, and the other end is in communication with the refrigeration first end; the refrigeration second end is in communication with the cold quantity inlet end of the first cold heat exchanger 130; and the refrigeration third end is in communication with the cold quantity outlet end of the air heat exchanger 400. The cold quantity outlet end of the first cold heat exchanger 130 is also in communication with the gas-liquid separator 500, the gas-liquid separator 500 is in communication with the inlet end of the compressor 310, and the gas-liquid separator 500 is also in communication with the cold quantity inlet end of the air heat exchanger 400.

[0078] Specifically, the gas-liquid separator 500 is used to separate the gas-liquid mixture of the refrigerant flowing out of the first cold heat exchanger 130, to ensure that only the gaseous refrigerant enters the compressor 310, preventing the liquid refrigerant from damaging the compressor. At the same time, the bypass is connected with the air heat exchanger 400 to provide additional cooling or preheating opportunities for the refrigerant.

[0079] The refrigeration three-way valve 321 is used to switch the flow direction of the refrigerant according to the needs of the system refrigeration or heating. In the refrigeration mode, the refrigerant flows through the refrigeration second end to the first cold heat exchanger 130; under certain conditions (such as when additional cooling is needed), the refrigerant may flow through the refrigeration third end to the air heat exchanger 400.

[0080] The electronic expansion valve 322 is used to control the flow of refrigerant into the refrigeration cycle, thereby adjusting the system pressure and temperature, and optimizing the refrigeration efficiency.

[0081] In this embodiment, the gas-liquid separator 500 is further added, and the composition of the low-pressure pipe group 320 is refined, solving the technical problems of complex refrigerant management, insufficient protection of the compressor 310, and low system efficiency in traditional heating refrigeration systems. The use of the gas-liquid separator 500 effectively avoids damage to the compressor 310 by liquid refrigerant, improving the stability and reliability of the system. At the same time, through the synergistic effect of the refrigeration three-way valve 321 and the electronic expansion valve 322, flexible control of the refrigerant flow direction and accurate adjustment of the flow rate are realized, optimizing the efficiency of the refrigeration cycle.

[0082] In some embodiments of the present application, continuing to refer to Figure 2 As shown in the figure, the air heat exchanger 400 is also provided with a fan 410; the fan 410 is configured to discharge the cold or heat into the air heat exchanger 400.

[0083] It can be understood that the main function of the fan 410 is to accelerate the flow of air in the air heat exchanger 400, thereby enhancing the heat exchange efficiency. Help the air heat exchanger 400 quickly discharge excess cold or heat. The fan 410 in this embodiment increases the flow rate of air in the air heat exchanger 400, thereby improving the rate and efficiency of heat exchange, helping the system to reach the required temperature in a shorter time, and improving the overall energy efficiency.

[0084] In some embodiments of the present application, the energy-saving heating and refrigeration dual-channel all-in-one machine further comprises: a temperature sensor group 600, the temperature sensor group 600 comprising: a heating temperature sensor 610 and a refrigeration temperature sensor 620, and a control system electrically connected with the compressor 310, the heating three-way valve 331, the refrigeration three-way valve 321 and the temperature sensor group 600.

[0085] Among them, the heating temperature sensor 610 is arranged at the water outlet of the hot water tank 210 or the second cold heat exchanger 230, and the heating temperature sensor 610 is configured to detect the hot water temperature to obtain hot water temperature data and feedback to the control system; the refrigeration temperature sensor 620 is arranged near the water outlet of the cold water tank 110 or the first cold heat exchanger 130, and the refrigeration temperature sensor 620 is configured to detect the cold water temperature to obtain cold water temperature data and feedback to the control system.

[0086] The control system is configured to receive hot water temperature data and cold water temperature data; when the hot water temperature data is higher than the preset upper limit of the heating temperature and the cold water temperature data is higher than the preset lower limit of the cooling temperature, it is judged that excess heat needs to be discharged, and a heat discharge operation is performed; when the cold water temperature data is lower than the preset lower limit of the cooling temperature and the hot water temperature data is lower than the preset upper limit of the heating temperature, it is judged that excess cold needs to be discharged, and a cold discharge operation is performed.

[0087] Specifically, the temperature sensor group 600 is used to monitor the temperature of hot water and cold water in real time, and feed back the data to the control system, providing a key basis for energy management and heat discharge of the system. The control system analyzes the energy state of the system based on the received temperature data, and judges whether excess heat or cold needs to be discharged according to the preset upper limit of the heating temperature and the lower limit of the cooling temperature. The control system is also responsible for issuing control instructions to adjust the working state of the compressor, the three-way valve and other components to achieve energy balance.

[0088] When the hot water temperature is too high or the cold water temperature is too low, the control system can quickly identify and respond, and discharge heat by adjusting the working state of the system components, thereby avoiding waste of energy and overheating or overcooling of the system. The embodiment monitors the temperature state of the system in real time through the temperature sensor 600, and the control system judges the energy demand of the system according to the preset temperature threshold, and adjusts the working state of the compressor 310, the heating three-way valve 331, the cooling three-way valve 321 and other components to achieve dynamic balance and efficient use of energy.

[0089] In some embodiments of the present application, the heat discharge operation is to control the heating three-way valve 331 to open and control the cooling three-way valve 321 to close; the cold discharge operation is to control the cooling three-way valve 321 to open and control the heating three-way valve 331 to close.

[0090] It can be understood that in the conventional heating mode, the heating three-way valve 331 guides the hot water from the hot water tank 210 to the second cold-heat exchanger 230 to heat the external medium (such as air or water). When the heat discharge operation is performed, the flow direction is switched to guide the hot water to the system external circulation pipeline to discharge excess heat through the air heat exchanger 400.

[0091] Specifically, when the control system detects that the hot water temperature data is higher than the preset upper limit of the heating temperature, it is determined that the system has accumulated too much heat and needs to discharge heat. At this time, the control system issues an instruction to control the heating three-way valve 331 to open, so that the hot water flows into the system external circulation pipeline and the heat is discharged to the outside through the air heat exchanger 400. At the same time, the cooling three-way valve 321 is controlled to close to avoid unnecessary loss of cold.

[0092] Further, in the normal cooling mode, the cooling three-way valve 321 directs the cold water from the cold water tank 110 to the first cold heat exchanger 130 to cool the external medium. When the cooling capacity discharge operation is performed, the flow direction is switched, and the cold water is guided to the external circulation pipeline, and the excess cooling capacity is discharged through the air heat exchanger 400.

[0093] Specifically, when the cold water temperature data is lower than the preset lower limit of the cooling supply temperature, indicating that the system has accumulated too much cooling capacity, the control system also issues an instruction, but this time, the control system controls the cooling three-way valve 321 to open, so that the cold water flows into the external circulation pipeline, and the fan 410 can also be started to discharge the cooling capacity through the air heat exchanger 400. At the same time, the heating three-way valve 331 is closed to ensure that heat does not enter the cold water circulation system.

[0094] In some embodiments of the present application, the control system is also electrically connected with the electronic expansion valve 322; the control system is further configured to: when the hot water temperature data is lower than the preset lower limit of the heating supply temperature, and the cold water temperature data is higher than the preset lower limit of the cooling supply temperature, it is judged that the cooling operation needs to be performed. The cooling operation is: controlling the cooling three-way valve 321 to open, controlling the heating three-way valve 331 to close, and opening the electronic expansion valve 322 to control the cooling capacity flow.

[0095] The electronic expansion valve 322 controls the refrigeration capacity and efficiency of the refrigeration system by adjusting the refrigerant flow. In the cooling operation, the electronic expansion valve 322 accurately adjusts the refrigerant flow entering the first cold heat exchanger 130 according to the instruction of the control system. By controlling the refrigerant flow, the electronic expansion valve 322 can quickly and accurately adjust the refrigeration capacity of the refrigeration system to meet different cooling requirements.

[0096] Specifically, when the system needs to be cooled, the control system first determines whether the hot water temperature is lower than the lower limit of the heating supply temperature and whether the cold water temperature is higher than the lower limit of the cooling supply temperature. If the conditions are met, the control system issues an instruction to control the cooling three-way valve 321 to open, so that the cold water in the cold water circulation system can flow through the first cold heat exchanger 130 for cooling; at the same time, the heating three-way valve 331 is closed to avoid unnecessary heat loss of the hot water in the hot water circulation system. In addition, the control system also opens the electronic expansion valve 322 and adjusts its opening degree according to the cooling requirement to accurately control the refrigerant flow entering the first cold heat exchanger 130, thereby realizing fine adjustment of the cooling capacity.

[0097] In some embodiments of the present application, the temperature sensor group 600 further comprises: a heat exchanger temperature sensor 630; the heat exchanger temperature sensor 630 is arranged inside the air heat exchanger 400 and is used to detect the temperature inside the air heat exchanger 400 to obtain heat exchanger temperature data and feed back to the control system; the control system is further configured to: receive the heat exchanger temperature data.

[0098] When the heating three-way valve 331 is opened and the refrigeration three-way valve 321 is closed, if the heat exchanger temperature data is higher than the preset heat discharge temperature, the fan 410 is controlled to be opened to discharge the excessive heat into the air heat exchanger 400, and if the heat exchanger temperature data is lower than the preset heat discharge temperature, the fan 410 is controlled to be closed; when the refrigeration three-way valve 321 is opened and the heating three-way valve 331 is closed, if the heat exchanger temperature data is lower than the preset cold discharge temperature, the fan 410 is controlled to be opened to discharge the excessive cold into the air heat exchanger 400, and if the heat exchanger temperature data is higher than the preset cold discharge temperature, the fan 410 is controlled to be closed.

[0099] In the heating mode, when the heating three-way valve 331 is opened and the refrigeration three-way valve 321 is closed, the control system receives the heat exchanger temperature data fed back by the heat exchanger temperature sensor 630. If the data is higher than the preset heat discharge temperature, it indicates that too much heat is accumulated in the air heat exchanger 400, and the discharge needs to be accelerated. At this time, the control system issues an instruction to control the fan 410 to be opened to speed up the air flow rate and improve the heat discharge efficiency. If the heat exchanger temperature data is lower than the preset heat discharge temperature, the fan 410 is controlled to be closed to avoid unnecessary energy consumption.

[0100] Further, in the refrigeration mode, when the refrigeration three-way valve 321 is opened and the heating three-way valve 331 is closed, the control system also judges according to the data fed back by the heat exchanger temperature sensor 630. If the data is lower than the preset cold discharge temperature, it indicates that too much cold is accumulated in the air heat exchanger 400, and the discharge needs to be accelerated. At this time, the control system issues an instruction to control the fan 410 to be opened. If the heat exchanger temperature data is higher than the preset cold discharge temperature, the fan 410 is controlled to be closed.

[0101] From the above content, it can be known that the energy-saving heating and refrigeration dual-channel all-in-one machine starts to monitor the temperature of each key part in real time after starting, including the hot water temperature, the cold water temperature and the temperature inside the air heat exchanger. The control system receives and processes these temperature data, judges the current working state (heating or refrigeration) and whether adjustment is needed according to the preset logic. In the heating mode, that is, when the hot water temperature is lower than the preset lower limit of the heating supply temperature and the system judges that the heating demand, the control system opens the heating three-way valve and closes the refrigeration three-way valve. At the same time, the temperature inside the air heat exchanger is monitored, and if it is higher than the preset heat discharge temperature, the fan is opened to accelerate the heat discharge.

[0102] In the cooling mode: that is, when the cold water temperature is higher than the preset cooling temperature lower limit and the system judges that there is a cooling demand, the control system opens the cooling three-way valve and closes the heating three-way valve. At the same time, the temperature inside the air heat exchanger is monitored, and if it is lower than the preset cold energy discharge temperature, the fan is started to accelerate the cold energy discharge. In the heating and cooling mode, the control system also precisely adjusts the flow rate of the refrigerant through the electronic expansion valve 322 (if applicable) to further control the cooling / heating capacity.

[0103] Through the above control mode, in actual application, when cooling the material tank and hydraulic station of the high-pressure foaming machine and the like, the heat generated by the refrigeration assembly (such as the raw material tank and the hydraulic station and the like) is not directly discharged to the surrounding environment, but is transferred to the heating assembly for heating the foaming clamp. Finally, the heat generated by the refrigeration assembly and the like is transferred to the foaming clamp, reducing the energy loss of the equipment, reducing the heat discharged to the surrounding environment, and achieving the purpose of energy saving and carbon reduction. The energy-saving heating and refrigeration dual-channel all-in-one machine of the present application can be applied to production places such as high-pressure foaming and plastic suction that require both heating and refrigeration, has good practicability, and is easy to popularize.

[0104] Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure herein. It is intended that the specification and examples be considered as exemplary only, with the true scope and spirit of the disclosure being indicated by the following claims.

Claims

1. An energy-saving heating and refrigeration dual-channel integrated machine, characterized in that, Comprise: A refrigeration assembly (100), a heating assembly (200) and a compression assembly (300); The heating assembly (200) comprises a hot water tank (210), a hot water pump (220) and a second cold heat exchanger (230); The compression assembly (300) comprises a compressor (310), a low-pressure pipe group (320) and a high-pressure pipe group (330); The low-pressure pipe group (320) is in communication with the refrigeration assembly (100) and the gas inlet end of the compressor (310); The high-pressure pipe group (330) is in communication with the heating assembly (200) and the gas outlet end of the compressor (310); The low-pressure pipe group (320) is connected to the end of the high-pressure pipe group (330) away from the compressor (310); Further comprising: an air heat exchanger (400), the high-pressure pipe group (330) further comprises a heating three-way valve (331) and a liquid accumulator (332); The heating three-way valve (331) has a heating first end, a heating second end and a heating third end; The heating first end is in communication with the gas outlet end of the compressor (310), the heating second end is in communication with the heat outlet end of the second cold heat exchanger (230), the heating third end is in communication with the heat inlet end of the air heat exchanger (400), the heat outlet end of the air heat exchanger (400) is in communication with the liquid accumulator (332), and the liquid accumulator (332) is in communication with the heat inlet end of the second cold heat exchanger (230).

2. The energy-saving heating and refrigeration dual-channel integrated machine according to claim 1, characterized in that, The refrigeration assembly (100) comprises a cold water tank (110), a cold water pump (120) and a first cold heat exchanger (130); The low-pressure pipe group (320) is in communication with the first cold heat exchanger (130); The outlet of the cold water tank (110) is in communication with the water inlet of the cold water pump (120), the water outlet of the cold water pump (120) is in communication with the water inlet of the first cold heat exchanger (130), and the water outlet of the first cold heat exchanger (130) is in communication with the water inlet of the cold water tank (110); The first cold heat exchanger (130) is configured to cool the device.

3. The energy-saving heating and refrigeration dual-channel all-in-one machine of claim 2, wherein The high-pressure pipe group (330) is in communication with the second cold heat exchanger (230); The outlet of the hot water tank (210) is in communication with the water inlet of the hot water pump (220), the water outlet of the hot water pump (220) is in communication with the water inlet of the second cold heat exchanger (230), and the water outlet of the second cold heat exchanger (230) is in communication with the water inlet of the hot water tank (210); The second cold heat exchanger (230) is configured to heat the mold.

4. The energy-saving heating and refrigeration dual-channel integrated machine according to claim 3, characterized in that, Further comprising: A gas-liquid separator (500), the low-pressure pipe group (320) comprises a refrigeration three-way valve (321) and an electronic expansion valve (322); The refrigeration three-way valve (321) has a refrigeration first end, a refrigeration second end and a refrigeration third end; The electronic expansion valve (322) is in communication with the liquid reservoir (332) at one end and the first refrigeration end at the other end, the second refrigeration end is in communication with the cold inlet end of the first cold heat exchanger (130), and the third refrigeration end is in communication with the cold outlet end of the air heat exchanger (400); The cold outlet end of the first cold heat exchanger (130) is also in communication with the gas-liquid separator (500), the gas-liquid separator (500) is in communication with the air inlet end of the compressor (310), and the gas-liquid separator (500) is also in communication with the cold inlet end of the air heat exchanger (400).

5. The energy-saving heating and refrigeration dual-channel integrated machine according to claim 4, characterized in that, The air heat exchanger (400) is also provided with a fan (410); The fan (410) is configured to discharge cold or heat into the air heat exchanger (400).

6. The energy-saving heating and refrigeration dual-channel integrated machine according to claim 5, characterized in that, Also includes: A temperature sensor group (600) comprising a heating temperature sensor (610) and a refrigeration temperature sensor (620); And a control system electrically connected with the compressor (310), the heating three-way valve (331), the refrigeration three-way valve (321) and the temperature sensor group (600); The heating temperature sensor (610) is arranged at the water outlet of the hot water tank (210) or the second cold heat exchanger (230), and is configured to detect the hot water temperature to obtain hot water temperature data and feed back to the control system; The refrigeration temperature sensor (620) is arranged near the water outlet of the cold water tank (110) or the first cold heat exchanger (130), and is configured to detect the cold water temperature to obtain cold water temperature data and feed back to the control system; The control system is configured to receive the hot water temperature data and the cold water temperature data; When the hot water temperature data is higher than the preset upper limit of the heating temperature, and the cold water temperature data is higher than the preset lower limit of the cooling temperature, it is judged that excess heat needs to be discharged, and heat discharge operation is performed; When the cold water temperature data is lower than the preset lower limit of the cooling temperature, and the hot water temperature data is lower than the preset upper limit of the heating temperature, it is judged that excess cold needs to be discharged, and cold discharge operation is performed.

7. The energy-saving heating and refrigeration dual-channel all-in-one machine according to claim 6, wherein The heat discharge operation is to control the heating three-way valve (331) to open and control the refrigeration three-way valve (321) to close; The cold discharge operation is to control the refrigeration three-way valve (321) to open and control the heating three-way valve (331) to close.

8. The energy-saving heating and refrigeration dual-channel integrated machine according to claim 6, characterized in that, The control system is also electrically connected with the electronic expansion valve (322); The control system is also configured to determine that refrigeration operation needs to be performed when the hot water temperature data is lower than the preset lower limit of the heating temperature, and the cold water temperature data is higher than the preset upper limit of the cooling temperature. The refrigeration operation is: controlling the refrigeration three-way valve (321) to open, controlling the heating three-way valve (331) to close, and opening the electronic expansion valve (322) to control the cold flow.

9. The energy-saving heating and refrigeration dual-channel integrated machine according to claim 6, characterized in that, The temperature sensor group (600) further comprises: a heat exchanger temperature sensor (630); The heat exchanger temperature sensor (630) is arranged inside the air heat exchanger (400), used for detecting the temperature inside the air heat exchanger (400), obtaining heat exchanger temperature data, and feeding back to the control system; The control system is further configured to receive the heat exchanger temperature data; When the heating three-way valve (331) is opened and the refrigeration three-way valve (321) is closed, if the heat exchanger temperature data is higher than the preset heat discharge temperature, the fan (410) is controlled to open to discharge the excess heat entering the air heat exchanger (400), and if the heat exchanger temperature data is lower than the preset heat discharge temperature, the fan (410) is controlled to close; When the refrigeration three-way valve (321) is opened and the heating three-way valve (331) is closed, if the heat exchanger temperature data is lower than the preset cold discharge temperature, the fan (410) is controlled to open to discharge the excess cold entering the air heat exchanger (400), and if the heat exchanger temperature data is higher than the preset cold discharge temperature, the fan (410) is controlled to close.

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