Screw air compressor system

Abstract

The utility model discloses a screw air compressor system which comprises a box body, and a driving device, a screw compression device and an oil-gas separation device are arranged in the box body. The driving device comprises a first driver and a second driver; the screw compression device comprises a first two-stage screw compressor and a second two-stage screw compressor; the oil-gas separation device comprises a first oil-gas separator and a second oil-gas separator; the first driver drives the first two-stage screw compressor, and the first two-stage screw compressor is connected with the first oil-gas separator; and the second driver drives the second two-stage screw compressor, and the second two-stage screw compressor is connected with the second oil-gas separator. The screw air compressor system can realize ultra-wide flow regulation, ultra-large flow, low energy consumption and low noise.

Description

Technical Field

[0001] The utility model relates to the technical field of air compressors, and more specifically to a screw air compressor system. Background Art

[0002] With the rapid development of industrial production, the demand for compressed air is also growing, especially in variable working conditions and large flow applications. However, the flow adjustment range of existing twin-screw air compressors is generally 40%-100%. The flow range of screw air compressors is generally 0.5-100m³ / min. Now users' gas consumption varies greatly due to orders or gas reasons. It is difficult for a single screw machine to achieve a large flow adjustment. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a screw air compressor system, which can achieve ultra-wide flow regulation, ultra-large flow, low energy consumption and low noise.

[0004] The technical solution of the utility model is to provide a screw air compressor system with the following structure, including a box body, in which a driving device, a screw compression device and an oil-gas separation device are arranged; the driving device includes a first driver and a second driver; the screw compression device includes a first two-stage screw compressor and a second two-stage screw compressor; the oil-gas separation device includes a first oil-gas separator and a second oil-gas separator; the first driver drives the first two-stage screw compressor, and the first two-stage screw compressor is connected to the first oil-gas separator; the second driver drives the second two-stage screw compressor, and the second two-stage screw compressor is connected to the second oil-gas separator.

[0005] After adopting the above structure, the screw air compressor system of the utility model has the following advantages compared with the prior art:

[0006] Since the driving device of the screw air compressor system of the utility model includes a first driver and a second driver, the screw compression device includes a first two-stage screw compressor and a second two-stage screw compressor, and the oil-gas separation device includes a first oil-gas separator and a second oil-gas separator; the first driver drives the first two-stage screw compressor, and the first two-stage screw compressor is connected to the first oil-gas separator; the second driver drives the second two-stage screw compressor, and the second two-stage screw compressor is connected to the second oil-gas separator. The screw air compressor system of the utility model has a dual-drive system, and the two drivers drive two two-stage screw compressors respectively, which can achieve high efficiency, ultra-wide adjustment range and low energy consumption. The first two-stage screw compressor and the second two-stage screw compressor both adopt a twin-screw design, which has high compression efficiency and stability.

[0007] As an improvement, the first two-stage screw compressor includes a first screw assembly and a second screw assembly, the first screw assembly and the second screw assembly are arranged horizontally; the first driver is connected to the first screw assembly. After adopting this structure, the structure is simple, the compression efficiency is high and the stability is good.

[0008] As an improvement, the first driver is a variable frequency motor.

[0009] As an improvement, the second two-stage screw compressor includes a third screw assembly and a fourth screw assembly, the third screw assembly and the fourth screw assembly are arranged up and down; the second driver is connected to the third screw assembly. After adopting this structure, the structure is simple, the compression efficiency is high and the stability is good.

[0010] As an improvement, the second driver is a variable frequency motor or a fixed frequency motor.

[0011] As an improvement, the exhaust port of the first two-stage screw compressor is connected to the air inlet of the first oil-gas separator through the first pipeline, and the exhaust port of the second two-stage screw compressor is connected to the air inlet of the second oil-gas separator through the second pipeline; the air outlet of the first oil-gas separator and the air outlet of the second oil-gas separator are connected in parallel through an exhaust main pipe for output. After adopting this structure, the structure is simple.

[0012] As an improvement, a cooling device is also provided in the box, and the cooling device includes a first cooling component and a second cooling component; the first oil-gas separator is located at the exhaust side of the first two-stage screw compressor, and the first cooling component is located at the side of the first oil-gas separator away from the first two-stage screw compressor; the second oil-gas separator is located at the exhaust side of the second two-stage screw compressor, and the second cooling component is located at the side of the second oil-gas separator away from the second two-stage screw compressor. With this structure, the cooling device is used to cool the compressed high-temperature air to improve the compression efficiency.

[0013] As an improvement, an electric control box is further provided in the box body, and the electric control box is located in a side of the box body away from the cooling device. With this structure, the electric control box is used to coordinate the operation of various parts to achieve a stable and efficient compression process. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional structural schematic diagram of the screw air compressor system of the utility model.

[0015] Figure 2 It is a schematic diagram of the main structure of the screw air compressor system of the utility model.

[0016] Figure 3 for Figure 2 Schematic diagram of the cross-sectional structure in the AA direction.

[0017] As shown in the figure: 1. Box body, 2. Second drive, 3. First two-stage screw compressor, 4. Second two-stage screw compressor, 5. First oil-gas separator, 6. Second oil-gas separator, 7. Exhaust main pipe, 8. First modular radiator, 9. Second modular radiator, 10. First centrifugal fan, 11. Second centrifugal fan, 12. Electric control box. DETAILED DESCRIPTION

[0018] In order to better understand the present application, a more detailed description of various aspects of the present application will be made with reference to the accompanying drawings. It should be understood that these detailed descriptions are only descriptions of exemplary embodiments of the present application, and do not limit the scope of the present application in any way. Throughout the specification, the same figure numerals refer to the same elements.

[0019] In the drawings, the thickness, size and shape of objects have been slightly exaggerated for ease of explanation. The drawings are only examples and are not drawn strictly to scale.

[0020] It should also be understood that the terms “comprises,” “has,” “includes,” and “including,” when used in this specification, indicate the presence of the described features, integers, steps, operations, elements, and / or parts, but do not exclude the presence or addition of one or more other features, integers, steps, operations, elements, parts, and / or combinations thereof.

[0021] like Figures 1 to 3 As shown, the utility model discloses a screw air compressor system, comprising a housing 1. The housing 1 is provided with a driving device, a screw compression device, an oil-gas separation device, a cooling device and an electric control box.

[0022] The driving device comprises a first driver and a second driver 2. The first driver is a variable frequency motor, and the second driver 2 is a variable frequency motor or a fixed frequency motor.

[0023] The screw compression device includes a first two-stage screw compressor 3 and a second two-stage screw compressor 4. The first two-stage screw compressor 3 and the second two-stage screw compressor 4 are placed in parallel with each other, which is convenient for connecting pipelines and saves more space. The first two-stage screw compressor 3 includes a first screw assembly and a second screw assembly, and the first screw assembly and the second screw assembly are arranged horizontally. The first driver is connected to the first screw assembly, and the exhaust port of the first two-stage screw compressor 3 is connected to the air inlet of the first oil-gas separator 5 through a first pipeline. The second two-stage screw compressor 4 includes a third screw assembly and a fourth screw assembly, and the third screw assembly and the fourth screw assembly are arranged up and down. The second driver 2 is connected to the third screw assembly, and the exhaust port of the second two-stage screw compressor 4 is connected to the air inlet of the second oil-gas separator 6 through a second pipeline. The air outlet of the first oil-gas separator 5 and the air outlet of the second oil-gas separator 6 are connected in parallel through an exhaust main pipe 7 and then output.

[0024] The cooling device includes a first cooling component and a second cooling component. The first oil-gas separator 5 is located on the exhaust side of the first two-stage screw compressor 3, and the first cooling component is located on the side of the first oil-gas separator 5 away from the first two-stage screw compressor 3. The first cooling component includes a first modular radiator 8 and a first centrifugal fan 9. The first centrifugal fan 9 is used to form air convection in the box 1, and the first modular radiator 8 is used to cool hot air and form heat exchange to achieve a cooling effect. The first cooling component mainly cools and reduces the temperature of the first oil-gas separator 5 and the first two-stage screw compressor 3. The second oil-gas separator 6 is located on the exhaust side of the second two-stage screw compressor 4, and the second cooling component is located on the side of the second oil-gas separator 6 away from the second two-stage screw compressor 4. The second cooling component includes a second modular radiator 10 and a second centrifugal fan 11. The second centrifugal fan 11 is used to form air convection in the box body 1. The second modular radiator 10 is used to cool the hot air and form heat exchange to achieve a cooling effect. The second cooling component mainly cools and cools the second oil-gas separator 6 and the second two-stage screw compressor 4.

[0025] An electric control box is also provided in the box body 1, and the electric control box is located on a side of the box body 1 away from the cooling device.

[0026] The above are only preferred embodiments of the present application and are not intended to limit the present application. Any modifications, equivalent substitutions and improvements made within the principles and spirit of the present application are included in the protection scope of the present application.

Claims

1. A screw air compressor system, comprising a housing, wherein a driving device, a screw compression device and an oil-gas separation device are arranged in the housing; characterized in that: The driving device includes a first driver and a second driver; the screw compression device includes a first two-stage screw compressor and a second two-stage screw compressor; the oil-gas separation device includes a first oil-gas separator and a second oil-gas separator; the first driver drives the first two-stage screw compressor, and the first two-stage screw compressor is connected to the first oil-gas separator; the second driver drives the second two-stage screw compressor, and the second two-stage screw compressor is connected to the second oil-gas separator.

2. The screw air compressor system according to claim 1, characterized in that: The first two-stage screw compressor comprises a first screw assembly and a second screw assembly, wherein the first screw assembly and the second screw assembly are arranged horizontally; and the first driver is connected to the first screw assembly.

3. The screw air compressor system according to claim 2, characterized in that: The first driver is a variable frequency motor.

4. The screw air compressor system according to claim 1, characterized in that: The second two-stage screw compressor comprises a third screw assembly and a fourth screw assembly, wherein the third screw assembly and the fourth screw assembly are arranged vertically; and the second driver is connected to the third screw assembly.

5. The screw air compressor system according to claim 2, characterized in that: The second driver is a variable frequency motor or a fixed frequency motor.

6. The screw air compressor system according to claim 1, characterized in that: The exhaust port of the first two-stage screw compressor is connected to the air inlet of the first oil-gas separator through a first pipeline, and the exhaust port of the second two-stage screw compressor is connected to the air inlet of the second oil-gas separator through a second pipeline; the air outlet of the first oil-gas separator and the air outlet of the second oil-gas separator are connected in parallel through an exhaust main pipe for output.

7. The screw air compressor system according to claim 1, characterized in that: A cooling device is also provided in the casing, and the cooling device includes a first cooling component and a second cooling component; the first oil-gas separator is located on the exhaust side of the first two-stage screw compressor, and the first cooling component is located on the side of the first oil-gas separator away from the first two-stage screw compressor; the second oil-gas separator is located on the exhaust side of the second two-stage screw compressor, and the second cooling component is located on the side of the second oil-gas separator away from the second two-stage screw compressor.

8. The screw air compressor system according to claim 7, characterized in that: An electric control box is also arranged in the box body, and the electric control box is located on a side of the box body away from the cooling device.

Images