Air conditioning system with magnetic suspension centrifugal heat pump coupled with air-cooled heat pump

Abstract

The utility model provides a kind of magnetic suspension centrifugal heat pump coupling air conditioning system of air-cooled heat pump, including magnetic suspension centrifugal heat pump host, cooling tower, air-cooled heat pump host and several valves;Different switching mode can be formed by each valve, magnetic suspension centrifugal heat pump air conditioning system, air-cooled heat pump air conditioning system, magnetic suspension centrifugal heat pump coupling air conditioning system of air-cooled heat pump in parallel or series;When forming series air conditioning system, the evaporator of the magnetic suspension centrifugal heat pump host is formed water circulation pipeline between air-cooled heat pump host by evaporator side circulating water pump, and the condenser of the magnetic suspension centrifugal heat pump host is formed water circulation pipeline between air conditioning terminal by condenser side circulating water pump, for heating.The utility model solves the problem of magnetic suspension centrifugal heat pump without low-temperature heat source in winter, air-cooled heat pump heating attenuation and instability in low-temperature environment, thereby improve the energy stability, security of heating system, and improve the operation energy efficiency of system.

Description

Technical Field

[0001] This utility model relates to air conditioning cooling and heating systems, and in particular to an air conditioning system that uses a magnetic levitation centrifugal heat pump coupled with an air-cooled heat pump, belonging to the field of air conditioning technology. Background Technology

[0002] Heat pumps, as a clean heating technology, are increasingly being widely adopted. Currently, the most common types of heat pumps on the market include water source heat pumps and air source heat pumps. Water source heat pumps rely on a stable, low-temperature heat source, such as river water or groundwater, to effectively provide heating. Air source heat pumps, on the other hand, extract heat from the air, but their performance is affected by the outdoor ambient temperature, leading to decreased heating efficiency, reduced output, and decreased energy efficiency under extreme temperature conditions. Therefore, this application urgently needs to design an air conditioning system that can couple a magnetic levitation centrifugal heat pump unit and an air-cooled heat pump unit to solve the aforementioned technical problems. Utility Model Content

[0003] The purpose of this invention is to overcome the above-mentioned shortcomings of the prior art and provide an air conditioning system that uses a magnetic levitation centrifugal heat pump coupled with an air-cooled heat pump with high energy supply stability and high operating energy efficiency. It can use the air-cooled heat pump host as the low-temperature heat source of the magnetic levitation centrifugal heat pump host, thus solving the problems of no low-temperature heat source for the magnetic levitation centrifugal heat pump in winter and the heating capacity reduction and instability of the air-cooled heat pump in low-temperature environments.

[0004] The technical solution of this utility model is: an air conditioning system of a magnetic levitation centrifugal heat pump coupled with an air-cooled heat pump, including a magnetic levitation centrifugal heat pump host, a cooling tower, an air-cooled heat pump host, and several valves; by different switching modes of each valve, a parallel or series air conditioning system of a magnetic levitation centrifugal heat pump air conditioning system, an air-cooled heat pump air conditioning system, or a magnetic levitation centrifugal heat pump coupled with an air-cooled heat pump can be formed; when a series air conditioning system is formed, the evaporator of the magnetic levitation centrifugal heat pump host forms a water circulation pipeline with the air-cooled heat pump host through an evaporator-side circulating water pump, and the condenser of the magnetic levitation centrifugal heat pump host forms a water circulation pipeline with the air conditioning terminal through a condenser-side circulating water pump, for heating.

[0005] Furthermore, when a magnetic levitation centrifugal heat pump air conditioning system is formed, the condenser of the magnetic levitation centrifugal heat pump host forms a water circulation pipeline between the condenser-side circulating water pump and the cooling tower, and the evaporator of the magnetic levitation centrifugal heat pump host forms a water circulation pipeline between the evaporator-side circulating water pump and the air conditioning terminal, for cooling; or the evaporator of the magnetic levitation centrifugal heat pump host forms a water circulation pipeline between the evaporator-side circulating water pump and the cooling tower, and the condenser of the magnetic levitation centrifugal heat pump host forms a water circulation pipeline between the condenser-side circulating water pump and the air conditioning terminal, for heating.

[0006] Furthermore, when an air-cooled heat pump air conditioning system is formed, the air-cooled heat pump host forms a water circulation pipeline between the air-cooled heat pump circulating water pump and the air conditioning terminal for cooling or heating.

[0007] Furthermore, when forming a parallel air conditioning system of a magnetic levitation centrifugal heat pump coupled with an air-cooled heat pump, the condenser of the magnetic levitation centrifugal heat pump unit forms a water circulation pipeline between the condenser-side circulating water pump and the cooling tower, and the evaporator of the magnetic levitation centrifugal heat pump unit forms a water circulation pipeline between the evaporator-side circulating water pump and the air conditioning terminal, for cooling; or the evaporator of the magnetic levitation centrifugal heat pump unit forms a water circulation pipeline between the evaporator-side circulating water pump and the cooling tower, the condenser of the magnetic levitation centrifugal heat pump unit forms a water circulation pipeline between the condenser-side circulating water pump and the air conditioning terminal, and the air-cooled heat pump unit forms a water circulation pipeline between the air-cooled heat pump circulating water pump and the air conditioning terminal, for heating.

[0008] Furthermore, the evaporator outlet of the magnetic levitation centrifugal heat pump unit is divided into at least two branches. One branch connects to valve F1, and the other branch connects to the inlet of the air conditioning terminal via valve F5. The output of valve F1 is also divided into at least two branches. One branch connects to the inlet of the cooling tower via valve F12, and the other branch connects to the inlet of the air-cooled heat pump unit via valve F13 and the air-cooled heat pump circulating water pump. The return water of the air conditioning terminal is connected to the inlet of the evaporator via valve F6 and the evaporator-side circulating water pump. The outlet of the cooling tower is connected to the inlet of the evaporator via valve F11, valve F13, and the evaporator-side circulating water pump. The outlet of the air-cooled heat pump unit is connected to the inlet of the evaporator via valve F14, valve F3, and the evaporator-side circulating water pump.

[0009] Furthermore, the outlet of the condenser of the magnetic levitation centrifugal heat pump host is divided into at least two branches. One branch is connected to the inlet of the cooling tower via valves F2 and F12 in sequence, and the other branch is connected to the inlet of the air conditioning terminal via valve F7. The return water of the air conditioning terminal is connected to the inlet of the condenser via valve F8 and the condenser-side circulating water pump in sequence. The outlet of the cooling tower is connected to the inlet of the condenser via valves F11 and F4 and the condenser-side circulating water pump in sequence.

[0010] Furthermore, the outlet of the air-cooled heat pump unit is connected to the inlet of the air conditioning terminal via valve F9, and the return water of the air conditioning terminal is connected to the inlet of the air-cooled heat pump unit via valve F10 and the air-cooled heat pump circulating water pump.

[0011] Furthermore, a bypass is connected in parallel between the inlet and outlet of the air-cooled heat pump circulating water pump. A valve F15 is provided on the bypass, so that the circulating water enters the inlet of the air-cooled heat pump host in sequence through valve 13 and valve 15.

[0012] Furthermore, when the magnetic levitation centrifugal heat pump host and the air-cooled heat pump host are coupled in parallel, the inlet and outlet ends of the magnetic levitation centrifugal heat pump host and the air-cooled heat pump host are each connected to independent water pipes, which are eventually combined into the water pipes on the air conditioning terminal side.

[0013] Preferably, the valve is a manual valve or an electric valve; the magnetic levitation centrifugal heat pump host adopts a magnetic levitation centrifugal compressor; the air-cooled heat pump host adopts a two-pipe air-cooled heat pump that can switch between cooling and heating.

[0014] The beneficial effects of this utility model are:

[0015] (1) By adopting a magnetic levitation centrifugal heat pump coupled with an air-cooled heat pump, the air conditioning system combines the characteristics of traditional water source heat pump and air source heat pump equipment. It is particularly suitable for extreme temperature conditions. It can use the air-cooled heat pump host as the low-temperature heat source of the magnetic levitation centrifugal heat pump host, which solves the problems of no low-temperature heat source for magnetic levitation centrifugal heat pump in winter and the heating attenuation and instability of air-cooled heat pump in low-temperature environment. This improves the energy supply stability and safety of the heating system and enhances the operating energy efficiency of the system.

[0016] (2) By setting multiple valves on each water pipe, the system can switch between different working modes. The magnetic levitation centrifugal heat pump host and the air-cooled heat pump host can operate independently, or form a parallel air conditioning system of magnetic levitation centrifugal heat pump coupled with air-cooled heat pump, or form a series air conditioning system of magnetic levitation centrifugal heat pump coupled with air-cooled heat pump. It is highly flexible and can meet the operation under different needs. When one host fails, the other host can still continue to work, ensuring that the system provides uninterrupted cooling or heating services, thereby improving the reliability and stability of the system and avoiding equipment downtime. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall connection structure of the air conditioning system according to an embodiment of this utility model;

[0018] Figure 2 This is a schematic diagram (solid lines) of the working principle of the magnetic levitation centrifugal heat pump air conditioning system according to an embodiment of this utility model.

[0019] Figure 3 This is a schematic diagram (solid lines) of the working operation of the air-cooled heat pump air conditioning system according to an embodiment of this utility model.

[0020] Figure 4 This is a schematic diagram (solid lines) of the parallel air conditioning system of magnetic levitation centrifugal heat pump coupled with air-cooled heat pump according to an embodiment of the present invention.

[0021] Figure 5This is a schematic diagram (solid lines) of a series air conditioning system of a magnetic levitation centrifugal heat pump coupled with an air-cooled heat pump according to an embodiment of this utility model.

[0022] Explanation of reference numerals in the attached figures:

[0023] 1. Magnetic levitation centrifugal heat pump main unit; 2. Cooling tower; 3. Air-cooled heat pump main unit; 4. Condenser-side circulating water pump; 5. Evaporator-side circulating water pump; 6. Air-cooled heat pump circulating water pump; F1~F15. Valves. Detailed Implementation

[0024] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0025] like Figure 1 As shown: An air conditioning system of magnetic levitation centrifugal heat pump coupled with air-cooled heat pump includes magnetic levitation centrifugal heat pump main unit 1, cooling tower 2, air-cooled heat pump main unit 3, condenser-side circulating water pump 4, evaporator-side circulating water pump 5, air-cooled heat pump circulating water pump 6, and valves F1~F15.

[0026] The specific connection relationships of the above components are as follows:

[0027] The evaporator outlet of the magnetic levitation centrifugal heat pump unit 1 is divided into two branches. One branch connects to valve F1, and the other branch connects to the inlet of the air conditioning terminal via valve F5. The output of valve F1 is also divided into two branches. One branch connects to the inlet of the cooling tower 2 via valve F12, and the other branch connects to the inlet of the air-cooled heat pump unit 3 via valve F13 and the air-cooled heat pump circulating water pump 6. The return water of the air conditioning terminal is connected to the inlet of the evaporator via valve F6 and the evaporator-side circulating water pump. The outlet of the cooling tower 2 is connected to the inlet of the evaporator via valves F11, F13, and the evaporator-side circulating water pump 5. The outlet of the air-cooled heat pump unit 3 is connected to the inlet of the evaporator via valves F14, F3, and the evaporator-side circulating water pump 5.

[0028] The condenser outlet of the magnetic levitation centrifugal heat pump unit 1 is divided into two branches. One branch connects to the inlet of the cooling tower 2 via valves F2 and F12, and the other branch connects to the inlet of the air conditioning terminal via valve F7. The return water of the air conditioning terminal is connected to the inlet of the condenser via valve F8 and the condenser-side circulating water pump 4; and the outlet of the cooling tower 2 is connected to the inlet of the condenser via valves F11 and F4 and the condenser-side circulating water pump 4.

[0029] The outlet of the air-cooled heat pump unit 3 is connected to the inlet of the air conditioning terminal via valve F9, and the return water of the air conditioning terminal is connected to the inlet of the air-cooled heat pump unit 3 via valve F10 and the air-cooled heat pump circulating water pump 6. In addition, a bypass is connected in parallel between the inlet and outlet of the air-cooled heat pump circulating water pump 6. The bypass is equipped with valve F15, so that the circulating water does not pass through the air-cooled heat pump circulating water pump 6, but enters the inlet of the air-cooled heat pump unit 3 via valves 13 and 15 in sequence.

[0030] In this embodiment, by switching different valves, the magnetic levitation centrifugal heat pump unit 1 and the air-cooled heat pump unit 3 can operate independently, form a parallel air conditioning system of magnetic levitation centrifugal heat pump coupled with air-cooled heat pump, or form a series air conditioning system of magnetic levitation centrifugal heat pump coupled with air-cooled heat pump. For example, when the magnetic levitation centrifugal heat pump unit 1 operates independently, the magnetic levitation centrifugal heat pump unit 1, cooling tower 2, condenser-side circulating water pump 4, evaporator-side circulating water pump 5, valves F1~F8, and valves F11~F12 are connected through water pipes to form a magnetic levitation centrifugal heat pump air conditioning system; when the air-cooled heat pump unit 3 operates independently, the air-cooled heat pump unit 3, air-cooled heat pump circulating water pump 6, valves F9~F10, and valves F13~F14 are connected through water pipes to form an air-cooled heat pump air conditioning system.

[0031] In this embodiment, valves F1 to F15 can be electric valves or manual valves. When they are electric valves, the control system can switch the corresponding valves according to the selection of different working modes.

[0032] In this embodiment, when the magnetic levitation centrifugal heat pump host 1 and the air-cooled heat pump host 3 are coupled in parallel, the inlet and outlet of the magnetic levitation centrifugal heat pump host 1 and the air-cooled heat pump host 3 are each connected to independent water pipes, which are eventually combined into the water pipes on the air conditioning terminal side. This allows the circulating water output from the air conditioning terminal to be distributed to both the magnetic levitation centrifugal heat pump host 1 and the air-cooled heat pump host 3 through the water pipes. The circulating water output from the magnetic levitation centrifugal heat pump host 1 and the air-cooled heat pump host 3, after being cooled or heated, is eventually combined into the water pipes and enters the air conditioning terminal.

[0033] In this embodiment, when the magnetic levitation centrifugal heat pump host 1 and the air-cooled heat pump host 3 are coupled in series, the circulating water first flows through the water pipe to the air-cooled heat pump host 3 to extract heat from the air and raise its temperature. After being heated, it is sent to the evaporator of the magnetic levitation centrifugal heat pump host 1, and then the heat from the evaporator pipe is extracted through the condenser of the magnetic levitation centrifugal heat pump host 1 to provide heating hot water for the air conditioning terminal.

[0034] The following examples illustrate different operating methods of air conditioning systems corresponding to different valve switching methods.

[0035] Example 1

[0036] When each valve switches to the independent operating mode of the magnetic levitation centrifugal heat pump air conditioning system, specifically as follows: Figure 2 As shown:

[0037] Valves F9, F10, F13, F14, and F15 are closed, while valves F11 and F12 are open.

[0038] When the system is running in cooling mode, valves F2, F4, F5, and F6 are opened, and valves F1, F3, F7, and F8 are closed. The condenser of the magnetic levitation centrifugal heat pump unit 1 forms a water circulation pipeline between itself and the cooling tower 2 via the condenser-side circulating water pump 4. Specifically, the condenser outlet of the magnetic levitation centrifugal heat pump unit 1 is connected to the inlet of the cooling tower 2 via valves F2 and F12, and the outlet of the cooling tower 2 is connected to the condenser inlet via valves F11, F4, and the condenser-side circulating water pump 4.

[0039] The working principle is as follows: the high-temperature cooling water output from the condenser is sent to the cooling tower by the condenser-side circulating water pump 4. After being cooled in the cooling tower, it returns to the condenser to continue absorbing the heat of the refrigerant in the condenser, forming a cycle, thereby dissipating heat from the magnetic levitation centrifugal heat pump host 1.

[0040] Meanwhile, the evaporator of the magnetic levitation centrifugal heat pump unit 1 forms a water circulation pipeline with the air conditioning terminal through the evaporator-side circulating water pump 5, providing cooling to the air conditioning terminal. That is, the water outlet of the evaporator is connected to the water inlet of the air conditioning terminal through valve F5, and the water return of the air conditioning terminal is connected to the water inlet of the evaporator through valve F6 and the evaporator-side circulating water pump 5.

[0041] When the system is in heating mode, valves F1, F3, F7, and F8 are opened, while valves F2, F4, F5, and F6 are closed. The evaporator of the magnetic levitation centrifugal heat pump unit 1 forms a water circulation pipeline with the cooling tower 2 via the evaporator-side circulating water pump 5. That is, the cooling water in the cooling tower 2 enters the evaporator and transfers heat to the refrigerant, lowering the water temperature. It then flows back to the cooling tower 2 for reheating and reuse. In short, by utilizing the cooling tower 2 to extract low-grade heat from the air, a heat source can be provided for the magnetic levitation centrifugal heat pump unit 1. The condenser of the magnetic levitation centrifugal heat pump unit 1 forms a water circulation pipeline with the air conditioning terminals via the condenser-side circulating water pump 4. The hot water output from the condenser is used to provide heating for the air conditioning terminals.

[0042] In this embodiment, the supply water temperature of the air conditioning terminal is 7°C and the return water temperature is 12°C in summer. In winter, the supply water temperature of the air conditioning terminal is 45°C and the return water temperature is 40°C. The magnetic levitation centrifugal heat pump unit 1 uses a magnetic levitation centrifugal compressor, which can produce 7°C cold water in summer and 45°C hot water in winter.

[0043] Example 2

[0044] When each valve switches to the independent operating mode of the air-cooled heat pump air conditioning system, specifically as follows: Figure 3 As shown:

[0045] Valves F1~F8 and valves F11~F15 are closed, while valves F9 and F10 are open. The air-cooled heat pump unit 3 forms a water circulation pipeline between itself and the air conditioning terminal via the air-cooled heat pump circulating water pump 6. Specifically, the outlet of the air-cooled heat pump unit 3 is connected to the inlet of the air conditioning terminal via valve F9, and the return water from the air conditioning terminal is connected to the inlet of the air-cooled heat pump unit 3 via valve F10 and the air-cooled heat pump circulating water pump 6.

[0046] When the system is running in cooling mode, the circulating water of the air-cooled heat pump unit 3 exchanges heat with the outside cold air, cooling it down to 7°C to provide cooling for the air conditioning terminals.

[0047] When the system is in heating mode, the circulating water of the air-cooled heat pump unit 3 exchanges heat with the outside hot air, raising the temperature to 45°C to provide heating for the air conditioning terminals.

[0048] In this embodiment, the supply water temperature of the air conditioning terminal is 7°C and the return water temperature is 12°C in summer. In winter, the supply water temperature of the air conditioning terminal is 45°C and the return water temperature is 40°C. The air-cooled heat pump unit 3 adopts a two-pipe air-cooled heat pump that can switch between cooling and heating, and can produce 7°C chilled water in summer and 45°C hot water in winter.

[0049] Example 3

[0050] When each valve switches to the parallel air conditioning system operating mode of a magnetic levitation centrifugal heat pump coupled with an air-cooled heat pump, specifically as follows: Figure 4 As shown:

[0051] Valves F13, F14, and F15 are closed, while valves F9, F10, F11, and F12 are open.

[0052] When the system is running in cooling mode, valves F2, F4, F5, and F6 are opened, while valves F1, F3, F7, and F8 are closed. The condenser of the magnetic levitation centrifugal heat pump unit 1 forms a water circulation pipeline between itself and the cooling tower 2 via the condenser-side circulating water pump 4, thereby dissipating heat from the magnetic levitation centrifugal heat pump unit 1. For details on the principle, please refer to Example 1, which will not be elaborated here. The evaporator of the magnetic levitation centrifugal heat pump unit 1 forms a water circulation pipeline between itself and the air conditioning terminal via the evaporator-side circulating water pump 5, and the air-cooled heat pump unit 3 forms a water circulation pipeline between itself and the air conditioning terminal via the air-cooled heat pump circulating water pump 6. Both are used to provide cooling to the air conditioning terminal.

[0053] When the system is in heating mode, valves F1, F3, F7, and F8 are opened, and valves F2, F4, F5, and F6 are closed. The evaporator of the magnetic levitation centrifugal heat pump unit 1 forms a water circulation pipeline between itself and the cooling tower 2 through the evaporator-side circulating water pump 5; the condenser of the magnetic levitation centrifugal heat pump unit 1 forms a water circulation pipeline between itself and the air conditioning terminal through the condenser-side circulating water pump 4; and the air-cooled heat pump unit 3 forms a water circulation pipeline between itself and the air conditioning terminal through the air-cooled heat pump circulating water pump 6. All of these are used to provide heating for the air conditioning terminal.

[0054] In this embodiment, the supply water temperature of the air conditioning terminal is 7°C and the return water temperature is 12°C in summer. In winter, the supply water temperature of the air conditioning terminal is 45°C and the return water temperature is 40°C. Both the air-cooled heat pump unit and the magnetic levitation centrifugal heat pump unit can produce 7°C chilled water in summer and 45°C hot water in winter.

[0055] This embodiment distributes circulating water from a circulating water pump to both the magnetic levitation centrifugal heat pump unit and the air-cooled heat pump unit simultaneously through water pipes. After the circulating water is cooled or heated, it is then combined with water pipes to enter the air conditioning terminal, achieving cooling or heating. This is particularly suitable for situations where one unit fails, but the other unit can still continue to operate, ensuring that the system provides uninterrupted cooling or heating services, thereby improving the reliability and stability of the system and avoiding equipment downtime. Moreover, when both units operate in parallel, they can provide greater cooling or heating capacity to meet the temperature control requirements of large-scale or high-demand environments.

[0056] Example 4

[0057] When each valve switches to the operating mode of the series air conditioning system of magnetic levitation centrifugal heat pump coupled with air-cooled heat pump, specifically as follows: Figure 5 As shown:

[0058] Valves F9, F10, F11, and F12 are closed, while valves F13, F14, and F15 are open.

[0059] When the system is in heating mode, valves F1, F3, F7, and F8 are opened, and valves F2, F4, F5, and F6 are closed. The evaporator of the magnetic levitation centrifugal heat pump unit 1 forms a water circulation pipeline between itself and the air-cooled heat pump unit 3 via the evaporator-side circulating water pump 5. Specifically, the water outlet of the evaporator sequentially enters the air-cooled heat pump unit via valves F1, F13, and F15, while the water outlet of the air-cooled heat pump unit sequentially enters the evaporator via valves F14, F3, and the evaporator-side circulating water pump 5. The condenser of the magnetic levitation centrifugal heat pump unit 1 forms a water circulation pipeline between itself and the air conditioning terminals via the condenser-side circulating water pump 4, providing heating to the air conditioning terminals.

[0060] Its working principle is as follows: the evaporator-side circulating water pump 5 flows 15°C circulating water through the water pipe to the air-cooled heat pump host 3. The air-cooled heat pump host 3 extracts heat from the air and raises the temperature to 20°C, and sends it to the evaporator of the magnetic levitation centrifugal heat pump host 1. Then, the condenser of the magnetic levitation centrifugal heat pump host 1 extracts heat from the evaporator pipe to provide 45°C heating hot water to the air conditioning terminal.

[0061] This embodiment is particularly suitable for extreme temperature conditions, and can use the air-cooled heat pump host as the low-temperature heat source of the magnetic levitation centrifugal heat pump host. It solves the problems of no low-temperature heat source for magnetic levitation centrifugal heat pumps in winter and the heating attenuation and instability of air-cooled heat pumps in low-temperature environments, thereby improving the energy supply stability and safety of the heating system and enhancing the system's operating energy efficiency.

[0062] In summary, this utility model, on the one hand, adopts an air conditioning system that couples a magnetic levitation centrifugal heat pump with an air-cooled heat pump. It integrates the characteristics of traditional water source heat pumps and air source heat pumps, solving the problems of lack of low-temperature heat sources for magnetic levitation centrifugal heat pumps in winter and the heating capacity reduction and instability of air-cooled heat pumps in low-temperature environments. This improves the energy supply stability and safety of the heating system and enhances its operational efficiency. On the other hand, by installing multiple valves on each water pipe, different operating modes of the system can be switched. This allows the magnetic levitation centrifugal heat pump and the air-cooled heat pump to operate independently, form a parallel air conditioning system (magnetic levitation centrifugal heat pump coupled with air-cooled heat pump), or a series air conditioning system (magnetic levitation centrifugal heat pump coupled with air-cooled heat pump). This provides high flexibility, meeting different operational needs. Furthermore, when one unit fails, the other unit can continue to operate, ensuring uninterrupted cooling or heating services, thereby improving system reliability and stability and preventing equipment downtime.

[0063] Furthermore, the term "connection" should be interpreted broadly, for example, it can include fixed connections, detachable connections, or integral connections; it can include direct connections or indirect connections through an intermediate medium, and it can also include internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0064] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0065] Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this application.

Claims

1. An air conditioning system using a magnetically levitated centrifugal heat pump coupled with an air-cooled heat pump, characterized in that, It includes a magnetic levitation centrifugal heat pump main unit, a cooling tower, an air-cooled heat pump main unit, and several valves; by different switching modes of each valve, a magnetic levitation centrifugal heat pump air conditioning system, an air-cooled heat pump air conditioning system, or a parallel or series air conditioning system of a magnetic levitation centrifugal heat pump coupled with an air-cooled heat pump can be formed; when a series air conditioning system is formed, the evaporator of the magnetic levitation centrifugal heat pump main unit forms a water circulation pipeline with the air-cooled heat pump main unit through an evaporator-side circulating water pump, and the condenser of the magnetic levitation centrifugal heat pump main unit forms a water circulation pipeline with the air conditioning terminal through a condenser-side circulating water pump, for heating.

2. The air conditioning system of the magnetic levitation centrifugal heat pump coupled with the air-cooled heat pump according to claim 1, characterized in that, When a magnetic levitation centrifugal heat pump air conditioning system is formed, the condenser of the magnetic levitation centrifugal heat pump host forms a water circulation pipeline between the condenser-side circulating water pump and the cooling tower, and the evaporator of the magnetic levitation centrifugal heat pump host forms a water circulation pipeline between the evaporator-side circulating water pump and the air conditioning terminal, for cooling; or the evaporator of the magnetic levitation centrifugal heat pump host forms a water circulation pipeline between the evaporator-side circulating water pump and the cooling tower, and the condenser of the magnetic levitation centrifugal heat pump host forms a water circulation pipeline between the condenser-side circulating water pump and the air conditioning terminal, for heating.

3. The air conditioning system of the magnetic levitation centrifugal heat pump coupled with the air-cooled heat pump according to claim 1, characterized in that, When an air-cooled heat pump air conditioning system is formed, the air-cooled heat pump host forms a water circulation pipeline between the air-cooled heat pump circulating water pump and the air conditioning terminal for cooling or heating.

4. The air conditioning system of the magnetic levitation centrifugal heat pump coupled with the air-cooled heat pump according to claim 1, characterized in that, When a parallel air conditioning system is formed by coupling a magnetic levitation centrifugal heat pump with an air-cooled heat pump, the condenser of the magnetic levitation centrifugal heat pump unit forms a water circulation pipeline between the condenser-side circulating water pump and the cooling tower, and the evaporator of the magnetic levitation centrifugal heat pump unit forms a water circulation pipeline between the evaporator-side circulating water pump and the air conditioning terminal, for cooling; or the evaporator of the magnetic levitation centrifugal heat pump unit forms a water circulation pipeline between the evaporator-side circulating water pump and the cooling tower, the condenser of the magnetic levitation centrifugal heat pump unit forms a water circulation pipeline between the condenser-side circulating water pump and the air conditioning terminal, and the air-cooled heat pump unit forms a water circulation pipeline between the air-cooled heat pump circulating water pump and the air conditioning terminal, for heating.

5. The air conditioning system of the magnetic levitation centrifugal heat pump coupled with the air-cooled heat pump according to any one of claims 1 to 4, characterized in that, The evaporator outlet of the magnetic levitation centrifugal heat pump unit is divided into at least two branches. One branch connects to valve F1, and the other branch connects to the inlet of the air conditioning terminal via valve F5. The output of valve F1 is also divided into at least two branches. One branch connects to the inlet of the cooling tower via valve F12, and the other branch connects to the inlet of the air-cooled heat pump unit via valve F13 and the air-cooled heat pump circulating water pump. The return water of the air conditioning terminal is connected to the inlet of the evaporator via valve F6 and the evaporator-side circulating water pump. The outlet of the cooling tower is connected to the inlet of the evaporator via valve F11, valve F13, and the evaporator-side circulating water pump. The outlet of the air-cooled heat pump unit is connected to the inlet of the evaporator via valve F14, valve F3, and the evaporator-side circulating water pump.

6. The air conditioning system of the magnetic levitation centrifugal heat pump coupled with the air-cooled heat pump according to claim 5, characterized in that, The condenser outlet of the magnetic levitation centrifugal heat pump unit is divided into at least two branches. One branch is connected to the inlet of the cooling tower via valves F2 and F12, and the other branch is connected to the inlet of the air conditioning terminal via valve F7. The return water of the air conditioning terminal is connected to the inlet of the condenser via valve F8 and the condenser-side circulating water pump. The outlet of the cooling tower is connected to the inlet of the condenser via valves F11 and F4 and the condenser-side circulating water pump.

7. The air conditioning system of the magnetic levitation centrifugal heat pump coupled with the air-cooled heat pump according to claim 5, characterized in that, The outlet of the air-cooled heat pump unit is connected to the inlet of the air conditioning terminal via valve F9, and the return water of the air conditioning terminal is connected to the inlet of the air-cooled heat pump unit via valve F10 and the air-cooled heat pump circulating water pump.

8. The air conditioning system of the magnetic levitation centrifugal heat pump coupled with the air-cooled heat pump according to claim 7, characterized in that, A bypass is connected in parallel between the inlet and outlet of the air-cooled heat pump circulating water pump. A valve F15 is provided on the bypass, so that the circulating water enters the inlet of the air-cooled heat pump host in sequence through valve 13 and valve 15.

9. The air conditioning system of the magnetic levitation centrifugal heat pump coupled with the air-cooled heat pump according to claim 1, characterized in that, When the magnetic levitation centrifugal heat pump host and the air-cooled heat pump host are coupled in parallel, the inlet and outlet of the magnetic levitation centrifugal heat pump host and the air-cooled heat pump host are each connected to independent water pipes, and finally they are combined into the water pipes on the air conditioning terminal side.

10. The air conditioning system of the magnetic levitation centrifugal heat pump coupled with the air-cooled heat pump according to claim 1, characterized in that, The valve is either a manual valve or an electric valve.

Images