Air suspension centrifugal cooling-water machine

Abstract

The invention discloses an air suspension centrifugal water chiller, which belongs to the technical field of refrigeration equipment and comprises a water chiller mechanism, an air suspension compressor is arranged beside the water chiller mechanism, the water chiller mechanism comprises an evaporator connected with the air suspension compressor and a condenser connected with the air suspension compressor, and the evaporator is connected with the condenser. An electric cabinet is arranged on the evaporator, nitrogen is injected into the air suspension compressor, and a layer of continuous air film is formed on the surface of a rotor of the air suspension compressor through the nitrogen. The compressor rotor has the effects that the friction loss of the compressor rotor can be reduced, and the service life of the air suspension centrifugal water chiller is prolonged.

Description

Technical Field

[0001] This invention relates to the field of refrigeration equipment technology, and in particular to an air-suspension centrifugal chiller. Background Art

[0002] Centrifugal chillers are mainly used for refrigeration and cooling, and are widely used in industrial and commercial fields. They absorb heat and discharge it through circulating water, thereby reducing the ambient temperature. Centrifugal chiller units are widely used in commercial buildings, industrial facilities, public facilities and other fields.

[0003] Centrifugal chillers typically use a chiller unit and a compressor to perform refrigeration. Existing centrifugal chiller compressors mostly use mechanical bearings to support the rotor, which results in high friction loss and high maintenance costs. In recent years, the introduction of magnetic levitation bearing technology has reduced mechanical friction, but its high cost and complex control system have limited its widespread adoption.

[0004] In response to the aforementioned technologies, there is an urgent need to design and develop an air-suspension centrifugal chiller that can reduce the frictional loss of the compressor rotor and improve the service life of the air-suspension centrifugal chiller. Summary of the Invention

[0005] In order to reduce the frictional loss of the compressor rotor, this application provides an air-suspended centrifugal chiller.

[0006] The air-suspended centrifugal chiller provided in this application adopts the following technical solution: An air-suspension centrifugal chiller includes a chiller mechanism and an air-suspension compressor disposed next to the chiller mechanism. The chiller mechanism includes an evaporator connected to the air-suspension compressor and a condenser connected to the air-suspension compressor. The evaporator and the condenser are connected. An electrical control box is disposed on the evaporator. Nitrogen gas is injected into the air-suspension compressor, and the nitrogen gas forms a continuous gas film on the surface of the air-suspension compressor rotor.

[0007] By adopting the above technical solution, the evaporator is connected to the air-suspension compressor, the condenser is connected to the air-suspension compressor, and the evaporator is connected to the condenser. An electrical control box is installed on the evaporator. Nitrogen is injected into the air-suspension compressor. The nitrogen forms a continuous gas film on the surface of the air-suspension compressor rotor. This gas film dynamically balances the rotor's gravity, enabling the rotor to rotate at high speed without physical contact, thereby greatly reducing friction loss and mechanical wear, resulting in a higher energy efficiency ratio, lower noise level, and longer service life.

[0008] Preferably, the air suspension compressor is provided with a monitoring mechanism, which includes a pressure regulating valve on the air suspension compressor, a gas pressure sensor next to the pressure regulating valve, a signal regulator connected to the gas pressure sensor, and a computer connected to the signal regulator. The pressure regulating valve is connected to the air suspension compressor, and the gas pressure sensor is connected to the air suspension compressor.

[0009] By adopting the above technical solution, a pressure regulating valve is installed on the air suspension compressor and connected to the air suspension compressor. A gas pressure sensor is installed next to the pressure regulating valve and connected to the air suspension compressor. A signal regulator is connected to the gas pressure sensor, and a computer is connected to the signal regulator. Through the installation of the gas pressure sensor, the pressure parameters inside the air suspension compressor can be collected, thereby facilitating the monitoring of the quality of the gas film inside the air suspension compressor.

[0010] Preferably, the monitoring mechanism includes a vibration sensor disposed on the air suspension compressor and a temperature sensor disposed next to the vibration sensor. The vibration sensor and the temperature sensor are connected to the air suspension compressor and to the signal conditioner.

[0011] By adopting the above technical solution, a vibration sensor is installed on the air-suspension compressor, and a temperature sensor is installed next to the vibration sensor. The vibration sensor and temperature sensor are connected to the air-suspension compressor and to a signal conditioner. The vibration sensor and temperature sensor can detect the vibration, temperature and other signals of the air-suspension compressor, which facilitates the analysis of data on the internal air film of the air-suspension compressor.

[0012] Preferably, the monitoring mechanism includes a display component for displaying various data inside the air suspension compressor, the display component being located next to the electrical control box and on the condenser.

[0013] By adopting the above technical solution, the display component is set next to the electrical control box and on the condenser. The display component can display various data inside the air suspension compressor, making it convenient for staff to observe the data inside the air suspension compressor.

[0014] Preferably, the condenser is provided with a connecting pipe one, the evaporator is provided with a connecting pipe two, the connecting pipe one and the connecting pipe two are connected, and an expansion valve is provided at the connection point between the connecting pipe one and the connecting pipe two.

[0015] By adopting the above technical solution, a connecting pipe 1 is provided on the condenser, and a connecting pipe 2 is provided on the evaporator. The connecting pipe 1 and the connecting pipe 2 are connected, and an expansion valve is provided at the connection point between the connecting pipe 1 and the connecting pipe 2. Through the throttling effect of the expansion valve, the pressure of the high-pressure liquid refrigerant is reduced, so that it becomes a low-temperature liquid refrigerant, thereby absorbing heat in the evaporator and achieving a cooling effect.

[0016] Preferably, the evaporator is provided with a chilled water inlet and a chilled water outlet, the condenser is provided with a cooling water inlet and a cooling water outlet.

[0017] By adopting the above technical solution, the evaporator is provided with a chilled water inlet and a chilled water outlet, the condenser is provided with a cooling water inlet and a cooling water outlet, which facilitates the flow of chilled water and cooling water.

[0018] Preferably, the condenser is provided with a connecting pipe one, the evaporator is provided with a connecting pipe two, and a drying filter is provided at the connection between the connecting pipe one and the connecting pipe two.

[0019] By adopting the above technical solution, a connecting pipe 1 is installed on the condenser, and a connecting pipe 2 is installed on the evaporator. A dryer filter is installed at the connection between the connecting pipe 1 and the connecting pipe 2. The dryer filter can absorb residual moisture in the system to prevent freezing and blockage at low temperatures, and at the same time filter impurities in the system to avoid pipe blockage.

[0020] Preferably, an installation mechanism is provided next to the condenser. The installation mechanism includes a frame, one end of the condenser is inserted into one side of the frame, the other end of the condenser is inserted into another side of the frame, one end of the evaporator is inserted into one side of the frame, the other end of the evaporator is inserted into another side of the frame, and the installation mechanism includes a connecting component that connects the condenser, the evaporator and the frame.

[0021] By adopting the above technical solution, one end of the condenser is inserted into one side of the frame, and the other end of the condenser is inserted into the other side of the frame. One end of the evaporator is inserted into one side of the frame, and the other end of the evaporator is inserted into the other side of the frame. The connection components improve the stability of the connection between the condenser, evaporator and frame, thereby improving the stability of the operation of the condenser and evaporator.

[0022] Preferably, the mounting mechanism includes a support frame mounted on the condenser, and a connecting angle steel is provided at the bottom of the air suspension compressor, the connecting angle steel being connected to the support frame by screws.

[0023] By adopting the above technical solution, the support frame is set on the condenser, and the bottom of the air suspension compressor is provided with a connecting angle steel. The connecting angle steel is connected to the support frame by screws, which improves the stability of the connection between the air suspension compressor and the support frame.

[0024] Preferably, the mounting mechanism includes a support foot disposed on the bottom surface of the frame, and the bottom surface of the support foot is provided with a shock-absorbing pad.

[0025] By adopting the above technical solution, the support feet are set on the bottom surface of the frame, and the bottom surface of the support feet is equipped with shock-absorbing pads to improve the overall stability of the operation.

[0026] In summary, this application includes at least one of the following beneficial technical effects: 1. The evaporator is connected to the air-suspension compressor, the condenser is connected to the air-suspension compressor, and the evaporator is connected to the condenser. An electrical control box is installed on the evaporator. The air-suspension compressor is filled with nitrogen. The nitrogen forms a continuous gas film on the surface of the air-suspension compressor rotor. This gas film dynamically balances the rotor's gravity, allowing the rotor to rotate at high speed without physical contact, thereby greatly reducing friction loss and mechanical wear. In addition, since there is no lubricating oil, it also avoids environmental pollution problems caused by oil leakage. Compared with traditional designs, it has a higher energy efficiency ratio, lower noise level, and longer service life. 2. A pressure regulating valve is installed on the air suspension compressor and connected to the air suspension compressor. A gas pressure sensor is installed next to the pressure regulating valve and connected to the air suspension compressor. A signal regulator is connected to the gas pressure sensor, and a computer is connected to the signal regulator. By installing the gas pressure sensor, the pressure parameters inside the air suspension compressor can be collected, which facilitates the monitoring of the quality of the gas film inside the air suspension compressor. 3. A vibration sensor is installed on the air-suspension compressor, and a temperature sensor is installed next to the vibration sensor. The vibration sensor and temperature sensor are connected to the air-suspension compressor and to a signal conditioner. The vibration sensor and temperature sensor can detect the vibration, temperature and other signals of the air-suspension compressor, which facilitates the analysis of data on the internal air film of the air-suspension compressor. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the overall structure of an air-suspended centrifugal chiller according to an embodiment of this application.

[0028] Figure 2 This is a schematic block diagram illustrating the connection of the monitoring agency in the embodiments of this application.

[0029] Explanation of reference numerals in the attached figures: 1. Chiller mechanism; 11. Evaporator; 12. Condenser; 13. Connecting pipe one; 14. Connecting pipe two; 15. Expansion valve; 16. Chilled water inlet; 17. Chilled water outlet; 18. Cooling water inlet; 19. Cooling water outlet; 2. Air suspension compressor; 3. Monitoring mechanism; 31. Pressure regulating valve; 32. Gas pressure sensor; 33. Signal conditioner; 34. Vibration sensor; 35. Temperature sensor; 36. Computer; 37. Display assembly; 4. Mounting mechanism; 41. Frame; 42. Connecting assembly; 43. Support feet; 44. Vibration damping pad; 45. Connecting plate one; 46. Connecting plate two; 47. Connecting plate three; 48. Connecting plate four; 5. Electrical control box; 6. Connecting pipe one; 7. Connecting pipe two; 8. Dryer filter. Detailed Implementation

[0030] The present application will be further described in detail below with reference to the accompanying drawings.

[0031] This application discloses an air-suspended centrifugal chiller. (Refer to...) Figure 1 and Figure 2 As shown, an air-suspension centrifugal chiller includes a chiller mechanism 1, an air-suspension compressor 2, a monitoring mechanism 3, and an installation mechanism 4. The chiller mechanism 1 includes an evaporator 11 and a condenser 12.

[0032] Reference Figure 1 As shown, the mounting mechanism 4 includes a frame 41, a connecting component 42, a support frame, support feet 43, and a shock-absorbing pad 44. The frame 41 is horizontally arranged, and its length direction is parallel to the ground. A mounting hole 1 is opened on one side of the frame 41, and a mounting hole 2 is opened on the other side of the frame 41. The mounting hole 1 and the mounting hole 2 are coaxially arranged, and the mounting hole 1 and the mounting hole 2 are symmetrical about the center line of the bottom surface of the frame 41 in the length direction.

[0033] Reference Figure 1 As shown, one end of the condenser 12 is inserted into the first mounting hole, and the other end of the condenser 12 is inserted into the second mounting hole. The length direction of the condenser 12 is the same as the length direction of the frame 41. The connecting assembly 42 includes a first connecting plate 45, a second connecting plate 46, a third connecting plate 47, and a fourth connecting plate 48.

[0034] Reference Figure 1 As shown, connecting plate 1 45 is located at one end of the condenser 12, close to mounting hole 1, and coaxial with the mounting hole. Connecting plate 1 45 is connected to the frame 41 by screws. Connecting plate 2 46 is located at the other end of the condenser 12, close to mounting hole 2, and coaxial with the mounting hole 2. Connecting plate 2 46 is connected to the frame 41 by screws.

[0035] Reference Figure 1As shown, mounting hole three is provided on one side of the frame 41, and mounting hole four is provided on the other side of the frame 41. Mounting hole three and mounting hole four are coaxially arranged. Mounting hole three and mounting hole four are symmetrical about the center line of the bottom length direction of the frame 41. Mounting hole one and mounting hole three are symmetrical about the center line of the bottom width direction of the frame 41. Mounting hole two and mounting hole four are symmetrical about the center line of the bottom width direction of the frame 41.

[0036] Reference Figure 1 As shown, one end of the evaporator 11 is inserted into the mounting hole three, and the other end of the evaporator 11 is inserted into the mounting hole four. The length direction of the evaporator 11 is the same as the length direction of the frame 41. The connecting plate three 47 is located at one end of the evaporator 11. The connecting plate three 47 is close to the mounting hole three and is coaxially arranged with the mounting hole three. The connecting plate three 47 is connected to the frame 41 by screws.

[0037] Reference Figure 1 As shown, the connecting plate 48 is located at the other end of the evaporator 11. The connecting plate 48 is close to the mounting hole 4 and is coaxial with the mounting hole 4. The connecting plate 48 is connected to the frame 41 by screws, which improves the stability of the connection between the condenser 12, the evaporator 11 and the frame 41, thereby improving the working stability of the condenser 12 and the evaporator 11.

[0038] Reference Figure 1 As shown, the support frame is mounted on the condenser 12, and the bottom of the air suspension compressor 2 is provided with a connecting angle steel. The connecting angle steel is connected to the support frame by screws, which improves the stability of the connection between the air suspension compressor 2 and the support frame.

[0039] Reference Figure 1 As shown, there are 6 support feet 43, which are divided into 2 groups. The 2 groups of support feet 43 are symmetrical about the center line of the bottom surface of the frame 41. Each group has 3 support feet 43 evenly distributed at equal distances along the width of the bottom surface of the frame 41.

[0040] Reference Figure 1 As shown, there are 6 shock-absorbing pads 44, which correspond one-to-one with the support feet 43. The shock-absorbing pads 44 are located on the bottom surface of the support feet 43 to improve the overall stability of the operation.

[0041] Reference Figure 1As shown, the evaporator 11 is connected to the air-suspension compressor 2, and the condenser 12 is connected to the air-suspension compressor 2. The evaporator 11 is connected to the condenser 12. An electrical control box 5 is installed on the evaporator 11. The air-suspension compressor 2 is filled with nitrogen. The nitrogen forms a continuous gas film on the surface of the rotor of the air-suspension compressor 2. This gas film dynamically balances the rotor's gravity, enabling the rotor to rotate at high speed without physical contact, thereby greatly reducing friction loss and mechanical wear, resulting in a higher energy efficiency ratio, lower noise level, and longer service life.

[0042] Reference Figure 1 and Figure 2 As shown, the monitoring mechanism 3 includes a pressure regulating valve 31, a gas pressure sensor 32, a signal conditioner 33, a vibration sensor 34, a temperature sensor 35, a computer 36, and a display component 37. The pressure regulating valve 31 is mounted on the air suspension compressor 2 and is connected to the air suspension compressor 2. The gas pressure sensor 32 is mounted next to the pressure regulating valve 31 and is connected to the air suspension compressor 2.

[0043] Reference Figure 2 As shown, the signal conditioner 33 is connected to the gas pressure sensor 32, and the computer 36 is connected to the signal conditioner 33. By installing the gas pressure sensor 32, the pressure parameters inside the air suspension compressor 2 can be collected, thereby facilitating the monitoring of the quality of the gas film inside the air suspension compressor 2.

[0044] Reference Figure 2 As shown, vibration sensor 34 is installed on air suspension compressor 2, and temperature sensor 35 is installed next to vibration sensor 34. Vibration sensor 34 and temperature sensor 35 are connected to air suspension compressor 2 and signal conditioner 33. Vibration sensor 34 and temperature sensor 35 can detect vibration, temperature and other signals of air suspension compressor 2, thereby facilitating the analysis of data of the air film inside air suspension compressor 2.

[0045] Reference Figure 2 As shown, the display component 37 is an electronic display screen, which is located next to the electrical control box 5 and on the condenser 12. The electronic display screen can display various data inside the air suspension compressor 2, making it convenient for staff to observe the data inside the air suspension compressor 2.

[0046] Reference Figure 1As shown, a connecting pipe 13 is provided on the condenser 12, and a connecting pipe 14 is provided on the evaporator 11. The connecting pipe 13 and the connecting pipe 14 are connected. An expansion valve 15 is provided at the connection between the connecting pipe 13 and the connecting pipe 14. Through the throttling effect of the expansion valve 15, the pressure of the high-pressure liquid refrigerant is reduced, so that it becomes a low-temperature liquid refrigerant, thereby absorbing heat in the evaporator 11 and achieving a cooling effect.

[0047] Reference Figure 1 As shown, the evaporator 11 is provided with a chilled water inlet 16 and a chilled water outlet 17, the condenser 12 is provided with a cooling water inlet 18 and a cooling water outlet 19, which facilitates the flow of chilled water and cooling water.

[0048] Reference Figure 1 As shown, a connecting pipe 6 is provided on the condenser 12, and a connecting pipe 7 is provided on the evaporator 11. A dryer filter 8 is provided at the connection between the connecting pipe 6 and the connecting pipe 7. The dryer filter 8 can absorb residual moisture in the system to prevent freezing and blockage at low temperatures, and at the same time filter impurities in the system to avoid pipe blockage.

[0049] The implementation principle of an air-suspension centrifugal chiller according to an embodiment of this application is as follows: Evaporator 11 is connected to air-suspension compressor 2, condenser 12 is connected to air-suspension compressor 2, evaporator 11 is connected to condenser 12, and an electrical control box 5 is installed on evaporator 11. Nitrogen is injected into air-suspension compressor 2, and nitrogen forms a continuous gas film on the surface of the rotor of air-suspension compressor 2. This gas film dynamically balances the rotor's gravity, enabling the rotor to rotate at high speed without physical contact, thereby greatly reducing friction loss and mechanical wear, resulting in a higher energy efficiency ratio, lower noise level, and longer service life.

[0050] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. An air-suspension centrifugal chiller, comprising a chiller mechanism (1), characterized in that: A gas suspension compressor (2) is provided next to the chiller mechanism (1). The chiller mechanism (1) includes an evaporator (11) connected to the gas suspension compressor (2) and a condenser (12) connected to the gas suspension compressor (2). The evaporator (11) is connected to the condenser (12). An electrical control box (5) is provided on the evaporator (11). Nitrogen gas is injected into the gas suspension compressor (2). The nitrogen gas forms a continuous gas film on the rotor surface of the gas suspension compressor (2).

2. The air-suspension centrifugal chiller according to claim 1, characterized in that: The air suspension compressor (2) is provided with a monitoring mechanism (3). The monitoring mechanism (3) includes a pressure regulating valve (31) provided on the air suspension compressor (2), a gas pressure sensor (32) provided next to the pressure regulating valve (31), a signal regulator (33) connected to the gas pressure sensor (32), and a computer (36) connected to the signal regulator (33). The pressure regulating valve (31) is connected to the air suspension compressor (2), and the gas pressure sensor (32) is connected to the air suspension compressor (2).

3. The air-suspension centrifugal chiller according to claim 2, characterized in that: The monitoring mechanism (3) includes a vibration sensor (34) installed on the air suspension compressor (2) and a temperature sensor (35) installed next to the vibration sensor (34). The vibration sensor (34) and the temperature sensor (35) are connected to the air suspension compressor (2) and to the signal conditioner (33).

4. The air-suspension centrifugal chiller according to claim 2, characterized in that: The monitoring mechanism (3) includes a display component (37) for displaying various data inside the air suspension compressor (2). The display component (37) is located next to the electrical control box (5) and on the condenser (12).

5. The air-suspension centrifugal chiller according to claim 1, characterized in that: The condenser (12) is provided with a connecting pipe one (13), and the evaporator (11) is provided with a connecting pipe two (14). The connecting pipe one (13) is connected to the connecting pipe two (14), and an expansion valve (15) is provided at the connection between the connecting pipe one (13) and the connecting pipe two (14).

6. The air-suspension centrifugal chiller according to claim 1, characterized in that: The evaporator (11) is provided with a chilled water inlet (16) and a chilled water outlet (17). The condenser (12) is provided with a cooling water inlet (18) and a cooling water outlet (19).

7. The air-suspension centrifugal chiller according to claim 1, characterized in that: The condenser (12) is provided with a connecting pipe 1 (6), the evaporator (11) is provided with a connecting pipe 2 (7), and a drying filter (8) is provided at the connection between the connecting pipe 1 (6) and the connecting pipe 2 (7).

8. The air-suspension centrifugal chiller according to claim 1, characterized in that: An installation mechanism (4) is provided next to the condenser (12). The installation mechanism (4) includes a frame (41). One end of the condenser (12) is inserted into one side of the frame (41), and the other end of the condenser (12) is inserted into the other side of the frame (41). One end of the evaporator (11) is inserted into one side of the frame (41), and the other end of the evaporator (11) is inserted into the other side of the frame (41). The installation mechanism (4) includes a connecting component (42) that connects the condenser (12), the evaporator (11) and the frame (41).

9. A centrifugal chiller with air suspension according to claim 8, characterized in that: The mounting mechanism (4) includes a support frame mounted on the condenser (12), and a connecting angle steel is provided at the bottom of the air suspension compressor (2). The connecting angle steel is connected to the support frame by screws.

10. A centrifugal chiller with air suspension according to claim 8, characterized in that: The mounting mechanism (4) includes a support foot (43) disposed on the bottom surface of the frame (41), and the bottom surface of the support foot (43) is provided with a shock-absorbing pad (44).

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