Multi-oil-free scroll air compressor parallel integrated unit
By using a parallel design of multiple oil-free scroll air compressors, each main unit is equipped with an independent radiator and an ultra-quiet centrifugal fan, which solves the problems of unsatisfactory heat dissipation and high noise in traditional oil-free scroll air compressors, achieving efficient heat dissipation and safe operation, and extending the service life of the unit.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SUZHOU GUTER MACHINERY EQUIPMENT CO LTD
- Filing Date
- 2025-09-15
- Publication Date
- 2026-07-14
AI Technical Summary
Traditional oil-free scroll air compressor units on the market use a single radiator, which has poor heat dissipation and high noise levels. Long-term use can easily lead to overheating, affecting the normal operation of the unit. Furthermore, the heat dissipation of different oil-free scroll air compressor units can interfere with each other, affecting the operation of other main units.
It adopts a parallel design of multiple oil-free scroll compressors, each equipped with an independent heat sink and an ultra-quiet centrifugal fan. It dissipates heat through independent internal chambers and air outlets, and is equipped with separate one-way valves and safety valves. Temperature protection device wiring holes are set up for temperature detection to ensure that each compressor dissipates heat independently and does not interfere with each other.
It achieves efficient heat dissipation under high power usage requirements, reduces noise, improves the safety and reliability of unit operation, avoids the whole unit from shutting down due to the failure of a single radiator, and extends the life of the main unit.
Smart Images

Figure CN224496745U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of electrical engineering technology, specifically to an integrated unit of multiple oil-free scroll air compressors connected in parallel. Background Technology
[0002] The development of multi-host parallel integrated units is the result of the resonance of "energy efficiency revolution + intelligent transformation + green policy". Its technological evolution has leaped from hardware redundancy to software-defined systems, and its application scenarios have expanded from industry to new energy, shipbuilding, high-performance computing and other fields.
[0003] Currently, many industries have an ever-increasing demand for clean air quality. In fields such as food and beverage, medical and pharmaceutical, and electronics, compressed air contaminated by lubricating oil can directly affect product quality or endanger human health. The clean, oil-free compressed air produced by oil-free scroll air compressors can meet the stringent standards of these industries. At the same time, the global concept of environmental protection has taken root, and various countries and regions have successively introduced policies to restrict the use of oil-lubricated air compressors and the emission of oily substances. This has driven the market demand for oil-free scroll air compressors.
[0004] Oil-free scroll air compressors are often used in parallel to achieve high-power air purification in large spaces. Traditional oil-free scroll air compressor units on the market use a single radiator with a common axial fan, which has poor heat dissipation and high noise. Overheating can easily occur during long-term use, affecting the normal operation of the unit. The heat dissipation of different oil-free scroll air compressors can interfere with each other, affecting the operation of other main units. Therefore, an integrated unit with multiple oil-free scroll air compressors connected in parallel is proposed. Utility Model Content
[0005] The purpose of this utility model is to provide an integrated unit of multiple oil-free scroll air compressors connected in parallel, to solve the problems mentioned in the background art, where traditional oil-free scroll air compressor units on the market use a single radiator and ordinary axial flow fans for heat dissipation, resulting in unsatisfactory heat dissipation and high noise. Long-term use can easily lead to excessive heat generation, affecting the normal operation of the device. Furthermore, the heat dissipation of different groups of oil-free scroll air compressors interferes with each other, affecting the operation of other main units. To achieve the above objective, this utility model provides the following technical solution: an integrated unit of multiple oil-free scroll air compressors connected in parallel, including a casing, a main unit body, a main unit head, a radiator, a centrifugal fan one, and a centrifugal fan two;
[0006] A base is fixedly connected to the lower surface of the outer shell. An inner cavity is opened inside the outer shell. A connecting shell is provided inside the inner cavity. A working cavity is opened inside the connecting shell. A machine base is provided inside the working cavity. A main machine body is fixedly connected to the upper surface of the machine base. A main machine head is fixedly connected to the rear surface of the main machine body. The main machine body and the main machine head are fixedly installed. The main machine body and the main machine head are combined to form an oil-free scroll air compressor.
[0007] The inner cavity and working cavity are provided with multiple sets evenly distributed inside the outer shell. The oil-free scroll air compressors are evenly distributed and installed. Centrifugal fan one is used for heat dissipation inside one cavity of the oil-free scroll air compressor, and centrifugal fan two is used for heat dissipation inside one cavity of the radiator. The radiator is fixedly connected to the main unit head through connecting pipes. Multiple oil-free scroll air compressors are designed in parallel to form an oil-free scroll air compressor unit to meet the needs of high-power use. Through independent inner cavities and independent air outlets, each oil-free scroll air compressor can achieve independent heat dissipation. Each main unit is equipped with an independent radiator to dissipate heat inside the oil-free scroll air compressor. Even if a single radiator has abnormalities such as perforation, it will not affect the normal operation of other main units, avoiding the problem of the entire unit stopping due to the failure of the traditional overall radiator. Two sets of ultra-quiet centrifugal fans are used to reduce noise generation, and at the same time, the high speed quickly sends out hot air, improving the heat dissipation efficiency of the unit and solving the problem of difficult heat dissipation of oil-free scroll air compressors.
[0008] More preferably, a cover plate is fixedly connected to the rear surface of the connecting shell, and the radiator is fixedly installed on the rear surface of the cover plate.
[0009] More preferably, a fixing connecting plate is fixedly connected to the side surface of the connecting shell, and a filter tank is fixedly installed on the side surface of the fixing connecting plate.
[0010] More preferably, a centrifugal fan one is fixedly installed on the side surface of the connecting shell, and a centrifugal fan two is fixedly installed on one side of the centrifugal fan one.
[0011] More preferably, the side surface of the outer casing has an air inlet one and the side surface of the outer casing has an air inlet two.
[0012] More preferably, the upper surface of the outer casing has a heat dissipation vent one, the upper surface of the outer casing has a heat dissipation vent two, and the rear surface of the outer casing has an air inlet three.
[0013] More preferably, a front end plate is fixedly connected to the front surface of the housing, a control panel is fixedly connected to the front surface of the front end plate, an emergency stop switch is fixedly connected to the front surface of the front end plate, and the control panel is a micro-intelligent control computer screen monitoring and control device.
[0014] Preferably, a one-way valve is fixedly installed on the side surface of the main compressor head, and a safety valve is provided on one side of the one-way valve. A temperature protector wiring hole is opened on the side surface of the main compressor head, and an air outlet is opened on one side of the outer casing. An air outlet connector is threadedly connected to the inner annular surface of the air outlet. The air outlet connector is fixedly connected to the radiator through a connecting pipe. Each oil-free scroll air compressor main unit is equipped with an individual one-way valve and a safety valve, which greatly improves the operational safety of the unit and reduces the risk of failure. The built-in thread of the air outlet connector facilitates quick connection of the air outlet pipe. Compared with using only a straight pipe, the straight pipe structure is not tight, is prone to air leakage, and is not convenient for replacement and maintenance. The temperature protector wiring hole connects the temperature protection wire to the control panel to protect the temperature detection of the oil-free scroll air compressor.
[0015] Compared with the prior art, the beneficial effects of this utility model are:
[0016] 1. This integrated unit, which combines multiple oil-free scroll air compressors in parallel, adopts a design where multiple oil-free scroll compressor units are connected in parallel to form an oil-free scroll air compressor unit. This meets the needs of high-power applications. Through independent internal cavities and independent air outlets, each oil-free scroll air compressor can achieve independent heat dissipation. Each compressor unit is equipped with an independent radiator to dissipate heat from the inside of the oil-free scroll air compressor. Even if a single radiator experiences abnormalities such as perforation, it will not affect the normal operation of other compressor units. This avoids the problem of the entire unit shutting down due to the failure of the traditional integrated radiator. Two sets of ultra-quiet centrifugal fans are used to reduce noise generation. At the same time, the high speed quickly delivers hot air, improving the unit's heat dissipation efficiency and solving the problem of heat dissipation difficulties in oil-free scroll air compressors.
[0017] 2. This integrated unit with multiple oil-free scroll air compressors connected in parallel is equipped with an individual check valve and safety valve for each oil-free scroll air compressor main unit, which greatly improves the operational safety of the unit and reduces the risk of failure. The air outlet connector has built-in threads to facilitate quick connection of the air outlet pipe. Compared with the use of only straight pipes, which are not airtight, are prone to air leakage, and are not convenient for replacement and maintenance.
[0018] 3. This integrated unit, which connects multiple oil-free scroll air compressors in parallel, has a temperature protector wiring hole for each oil-free scroll air compressor connected to a temperature protection wire to protect the internal temperature of the oil-free scroll air compressor, thereby improving safety. The natural heat dissipation exhaust air from the compressor head and the heat dissipation air after processing use independent channels and do not interfere with each other, which greatly reduces the internal temperature of the casing, solves the core pain point of dry oil-free air compressors being "sensitive to high temperatures", and extends the service life of the main unit. Attached Figure Description
[0019] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0020] Figure 2 This is a frontal three-dimensional structural diagram of the present invention;
[0021] Figure 3 This is a partial three-dimensional structural diagram of the rear view of this utility model;
[0022] Figure 4 This is a schematic diagram of the three-dimensional cross-section of the present invention. Figure 1 ;
[0023] Figure 5 This is a schematic diagram of the three-dimensional cross-section of the present invention. Figure 2 ;
[0024] Figure 6 This is a schematic diagram of the three-dimensional cross-section of the present invention. Figure 3 .
[0025] In the diagram: 1. Outer shell; 2. Base; 3. Air inlet 1; 4. Air inlet 2; 5. Front panel; 6. Control panel; 7. Emergency stop switch; 8. Heat dissipation vent 1; 9. Heat dissipation vent 2; 10. Air inlet 3; 11. Inner cavity; 12. Connecting shell; 13. Cover plate; 14. Radiator; 15. Working chamber; 16. Base; 17. Main unit body; 18. Main unit head; 19. Fixed connecting plate; 20. Filter tank; 21. Centrifugal fan 1; 22. Centrifugal fan 2; 23. One-way valve; 24. Temperature protector wiring hole; 25. Air outlet; 26. Air outlet connector. Detailed Implementation
[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0027] Please see Figure 1 - Figure 6 This utility model provides a technical solution: an integrated unit of multiple oil-free scroll air compressors connected in parallel, including a casing 1, a main unit body 17, a main unit head 18, a radiator 14, a centrifugal fan 21 and a centrifugal fan 22, wherein the centrifugal fan 21 and the centrifugal fan 22 are ultra-quiet 3500mA compressors. 3 Centrifugal fan with a capacity of / h;
[0028] A base 2 is fixedly connected to the lower surface of the outer shell 1. An inner cavity 11 is opened inside the outer shell 1. A connecting shell 12 is provided inside the inner cavity 11. A working cavity 15 is opened inside the connecting shell 12. The working cavity 15 is isolated from the cavity where the radiator 14 is installed. Each working cavity 15 is independent and does not interfere with each other. A base 16 is provided inside the working cavity 15. A main machine body 17 is fixedly connected to the upper surface of the base 16. A main machine head 18 is fixedly connected to the rear surface of the main machine body 17. The main machine body 17 and the main machine head 18 are fixedly installed. The main machine body 17 and the main machine head 18 are connected by a tire. The main machine body 17 and the main machine head 18 are combined to form an oil-free scroll air compressor. A centrifugal fan 1 is fixedly installed on the side surface of the connecting shell 12. A centrifugal fan 22 is fixedly installed on one side of the centrifugal fan 1.
[0029] Multiple sets of oil-free scroll air compressors are evenly distributed inside the outer casing 1, with the inner cavity 11 and working cavity 15 provided. Centrifugal fan 1 21 is used for heat dissipation inside one side of the oil-free scroll air compressor cavity, and centrifugal fan 22 is used for heat dissipation inside one side of the radiator 14 cavity. The radiator 14 is fixedly connected to the main unit head 18 through a connecting pipe. The radiator 14 is used for heat dissipation inside the oil-free scroll air compressor. A cover plate 13 is fixedly connected to the rear surface of the connecting shell 12, and the radiator 14 is fixedly installed on the rear surface of the cover plate 13. An air inlet 1 3 and an air inlet 2 4 are opened on the side surface of the outer casing 1. The air inlets 1 3 and 2 4 are used to draw air from the surrounding air into the unit during operation. A heat dissipation vent 1 8 and a heat dissipation vent 2 9 are opened on the upper surface of the outer casing 1. An air inlet 3 10 is opened on the rear surface of the outer casing 1. The heat dissipation vents 1 8 and 2 9 are used to exhaust the hot air generated inside the unit during operation.
[0030] In this embodiment, as Figure 5 As shown, a fixed connecting plate 19 is fixedly connected to the side surface of the connecting shell 12, and a filter tank 20 is fixedly installed on the side surface of the fixed connecting plate 19.
[0031] In this embodiment, as Figure 1 As shown, a front panel 5 is fixedly connected to the front surface of the outer casing 1, and a control panel 6 is fixedly connected to the front surface of the front panel 5. The control panel 6 is a micro-intelligent control computer screen used to control and monitor the operation of the device. An emergency stop switch 7 is fixedly connected to the front surface of the front panel 5. The emergency stop switch 7 is used to cut off the power to the entire unit and to shut down the unit in an emergency.
[0032] In this embodiment, as Figure 1 , Figure 3 , Figure 4 , Figure 5 and Figure 6As shown, a one-way valve 23 is fixedly installed on the side surface of the main compressor head 18. A safety valve is provided on one side of the one-way valve 23. Each main compressor head 18 is equipped with an independent one-way valve and a safety valve. A temperature protector wiring hole 24 is opened on the side surface of the main compressor head 18. A temperature protection wire is plugged into the temperature protector wiring hole 24 and connected to the control panel 6 to monitor the internal temperature of the oil-free scroll air compressor. An air outlet 25 is opened on one side of the outer casing 1. An air outlet connector 26 is threaded on the inner ring surface of the air outlet 25. The air outlet connector 26 is provided with an internal thread for connecting to the air outlet pipe. The air outlet connector 26 is fixedly connected to the radiator 14 through a connecting pipe.
[0033] The usage and advantages of this utility model: The integrated unit of multiple oil-free scroll air compressors connected in parallel operates as follows:
[0034] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown, before use, place the unit in a suitable location. When using, first release the emergency stop switch 7 to power on the unit. After powering on, the operator can control the unit via the control panel 6 on the front panel 5. When starting the unit, the surrounding air enters the inner cavity 11 through the air inlet 3 and air inlet 4 on the side surface of the outer casing 1. Once the air enters the inner cavity 11, the oil-free scroll air compressor in the working chamber 15 begins to work. The oil-free scroll air compressor compresses the air through the rotation of the scroll plates. Inside the compressor, air is introduced and guided between two meshing scroll plates. As the scroll plates continue to rotate, the air between these plates is gradually compressed, forming a closed space. It is worth noting that throughout the entire compression process, the air remains completely sealed between the scroll plates. Separation ensures the purity of compressed air and prevents oil contamination. After air compression is completed, the air is sent into the filter tank 20 for filtration. During the long-term operation of the unit, the temperature of the oil-free scroll air compressor will continue to rise, causing the temperature of the inner cavity 11 to continue to rise. At this time, centrifugal fan 1 21 and centrifugal fan 2 22 will start to work, respectively to dissipate heat from the inner cavity 11 of the oil-free scroll air compressor and the cavity of the radiator (14). The heat inside the radiator (14) and the main machine head (18) of the oil-free scroll air compressor is absorbed by the fins on the radiator (14) and dissipated by centrifugal fan 2 22. Then, the hot air is sent out through the heat dissipation port 1 8 and the heat dissipation port 2 9. The gas discharged from the oil-free scroll air compressor is discharged from the air outlet connector (26) through the radiator (14) and the connecting pipe.
[0035] Finally, it should be noted that the above content is only used to illustrate the technical solution of this utility model, and is not intended to limit the scope of protection of this utility model. Simple modifications or equivalent substitutions made by those skilled in the art to the technical solution of this utility model do not depart from the essence and scope of the technical solution of this utility model.
Claims
1. An integrated unit consisting of multiple oil-free scroll air compressors connected in parallel, characterized in that, Includes outer casing (1), main unit body (17), main unit head (18), radiator (14), centrifugal fan one (21) and centrifugal fan two (22); A base (2) is fixedly connected to the lower surface of the outer shell (1). An inner cavity (11) is opened inside the outer shell (1). A connecting shell (12) is provided inside the inner cavity (11). A working cavity (15) is opened inside the connecting shell (12). A base (16) is provided inside the working cavity (15). A main machine body (17) is fixedly connected to the upper surface of the base (16). A main machine head (18) is fixedly connected to the rear surface of the main machine body (17). The main machine body (17) and the main machine head (18) are fixedly installed. The main machine body (17) and the main machine head (18) are combined to form an oil-free scroll air compressor. The inner cavity (11) and working cavity (15) are provided in multiple sets and are evenly distributed inside the outer shell (1). The oil-free scroll air compressor is evenly distributed and installed. The centrifugal fan one (21) is used for heat dissipation inside the cavity on one side of the oil-free scroll air compressor. The centrifugal fan two (22) is used for heat dissipation inside the cavity on one side of the radiator (14). The radiator (14) is fixedly connected to the main unit head (18) through a connecting pipe.
2. The integrated unit of multiple oil-free scroll air compressors connected in parallel according to claim 1, characterized in that: The rear surface of the connecting shell (12) is fixedly connected to a cover plate (13), and the radiator (14) is fixedly installed on the rear surface of the cover plate (13).
3. The integrated unit of multiple oil-free scroll air compressors connected in parallel according to claim 2, characterized in that: A fixed connecting plate (19) is fixedly connected to the side surface of the connecting shell (12), and a filter tank (20) is fixedly installed on the side surface of the fixed connecting plate (19).
4. The integrated unit of multiple oil-free scroll air compressors connected in parallel according to claim 3, characterized in that: Centrifugal fan one is fixedly installed on the side surface of the connecting shell (12), and centrifugal fan two (22) is fixedly installed on one side of centrifugal fan one (21).
5. An integrated unit of multiple oil-free scroll air compressors connected in parallel according to claim 1, characterized in that: The outer shell (1) has an air inlet 1 (3) on its side surface and an air inlet 2 (4) on its side surface.
6. The integrated unit of multiple oil-free scroll air compressors connected in parallel according to claim 5, characterized in that: The upper surface of the outer shell (1) is provided with a heat dissipation vent (8), the upper surface of the outer shell (1) is provided with a heat dissipation vent (9), and the rear surface of the outer shell (1) is provided with an air inlet (10).
7. An integrated unit of multiple oil-free scroll air compressors connected in parallel according to claim 6, characterized in that: The front surface of the outer shell (1) is fixedly connected to a front end plate (5), the front surface of the front end plate (5) is fixedly connected to a control panel (6), and the front surface of the front end plate (5) is fixedly connected to an emergency stop switch (7).
8. An integrated unit of multiple oil-free scroll air compressors connected in parallel according to claim 1, characterized in that: A one-way valve (23) is fixedly installed on the side surface of the main unit head (18). A safety valve is provided on one side of the one-way valve (23). A temperature protector wiring hole (24) is opened on the side surface of the main unit head (18). An air outlet (25) is opened on one side of the outer shell (1). An air outlet connector (26) is threadedly connected to the inner ring surface of the air outlet (25). The air outlet connector (26) is fixedly connected to the radiator (14) through a connecting pipe.