Open water-cooled variable frequency two-stage compression screw machine structure

Abstract

The utility model relates to a compressor technical field, concretely relates to an open water cooling variable frequency two-stage compression screw machine structure, including steeliness chassis, air intake system, electrical control system, drive compression system, oil gas separation system, cooling system and oil circuit filtration system, air intake system, electrical control system, drive compression system, oil gas separation system, cooling system and oil circuit filtration system all set up in the top of steeliness chassis, air intake system includes centralized air supply transition box, a plurality of air filters and air inlet valve, one end of a plurality of air filters is linked with centralized air supply transition box, and air inlet valve sets up in one side of centralized air supply transition box, and the other end of a plurality of air filters is linked with air inlet valve, and through the setting of above -mentioned structure, the process of the compression gas of the screw machine head when the compressor is in operation and the motor operation process can all produce a large amount of heat, and the problem that the temperature that is too high can influence the efficiency and reliability of compressor.

Description

Technical Field

[0001] This utility model relates to the field of compressor technology, and in particular to an open-type water-cooled variable frequency two-stage compressor screw compressor structure. Background Technology

[0002] In the industrial sector, screw compressors are widely used due to their high efficiency and stable compression performance. However, traditional screw compressors often have some drawbacks in their design and use, which need to be improved.

[0003] In existing technology, compressors generate a significant amount of heat during gas compression by the screw compressor and during motor operation. Even with ample ventilation in the casing, the internal space of a compressor with a housing remains relatively enclosed, allowing heat to accumulate and causing excessively high internal temperatures. Excessive temperatures can negatively impact compressor efficiency and reliability, and may even lead to compressor shutdown due to overheating, disrupting normal production. Utility Model Content

[0004] The purpose of this invention is to provide an open-type water-cooled variable frequency two-stage compressor screw compressor structure, which solves the problem that a large amount of heat is generated during the compressor operation, both during the compression of gas by the compressor head and during the operation of the motor, and that excessively high temperatures will affect the efficiency and reliability of the compressor.

[0005] To achieve the above objectives, this utility model provides an open-type water-cooled variable frequency two-stage compressor screw compressor structure, including a rigid base frame, an air intake system, an electrical control system, a drive compression system, an oil-gas separation system, a cooling system, and an oil filtration system. The air intake system, the electrical control system, the drive compression system, the oil-gas separation system, the cooling system, and the oil filtration system are all located above the rigid base frame. The air intake system includes a centralized air supply transition box, several air filters, and an air intake valve. One end of each air filter is connected to the centralized air supply transition box and is located on the outside of the centralized air supply transition box. The air intake valve is located on one side of the centralized air supply transition box, and the other end of each air filter is connected to the air intake valve.

[0006] The drive compression system includes a motor, a screw compressor, and a coupling, with the screw compressor and the motor connected via the coupling.

[0007] The oil-gas separation system includes a high-efficiency oil-gas separation cylinder, which is equipped with a cyclone separation structure and an oil-gas separation filter element.

[0008] The cooling system includes a shell-and-tube cooler and a plate heat exchanger, which are located on one side of the centralized gas supply transition box.

[0009] The oil filtration system includes a temperature control valve, a coarse filter, and a fine filter, which are located on one side of the centralized gas supply transition box.

[0010] This utility model discloses an open-type water-cooled variable frequency two-stage compressor screw compressor structure. The air filter is installed at the unit's air inlet. The pleated air filter element can block particles larger than 3μm from entering the casing, ensuring air quality, protecting the equipment's normal operation, and extending its service life. Multiple air filters are arranged in series and sealed together using custom-made rubber hoses, ultimately connecting to the input end of the intake valve. The intake valve is fixed to the air inlet of the screw compressor head via flanges or bolts, forming a complete pre-circuit air path system of "air filtration - flow regulation - compressor head air intake." The intake valve is the core component for regulating the compressor's intake volume. By controlling the opening and closing degree of the cylinder, it changes the gap between the valve plate and the inner wall of the intake channel, thereby regulating the intake volume. Attached Figure Description

[0011] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0012] Figure 1 This is a front view of an open-type screw compressor according to this utility model.

[0013] Figure 2 This is a side view of an open-type screw compressor according to this utility model.

[0014] Figure 3 This is a top view of an open-type screw compressor according to this utility model.

[0015] Figure 4 This is a rear view of an open-type screw compressor according to this utility model.

[0016] 1-Intake system, 11-Transfer box, 12-Air filter, 13-Intake valve, 2-Electrical control system, 3-Drive compression system, 31-Motor, 32-Screw compressor, 33-Coupling, 4-Oil-gas separation system, 41-High-efficiency oil-gas separator, 5-Cooling system, 51-Cooler, 52-Plate heat exchanger, 6-Filtration system, 61-Temperature control valve, 62-Coarse filter, 63-Fine filter, A-Electrical control panel, B1 and B2-Cooling system outlet, C1 and C2-Cooling system inlet, D-Control cable inlet, E1, E2 and E3-Unit centralized air inlet, 7-Rigid base frame. Detailed Implementation

[0017] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0018] Please see Figures 1 to 4 This utility model provides an open-type water-cooled variable frequency two-stage compressor screw compressor structure, including a rigid base frame 7, an air intake system 1, an electrical control system 2, a drive compression system 3, an oil-gas separation system 4, a cooling system 5, and an oil filtration system 6. The air intake system 1, the electrical control system 2, the drive compression system 3, the oil-gas separation system 4, the cooling system 5, and the oil filtration system 6 are all located above the rigid base frame 7. The air intake system 1 includes a centralized air supply transition box 11, several air filters 12, and an air intake valve 13. One end of each air filter 12 is connected to the centralized air supply transition box 11 and is located on the outside of the centralized air supply transition box 11. The air intake valve 13 is located on one side of the centralized air supply transition box 11, and the other end of each air filter 12 is connected to the air intake valve 13.

[0019] In this embodiment, the air filter 12 is installed at the air inlet of the unit. The pleated air filter element can block particles larger than 3μm from entering the casing, ensuring air quality, protecting the normal operation of the equipment, and extending its service life. Multiple air filters 12 are arranged in series and sealed together by a custom-made rubber hose, ultimately connecting to the input end of the intake valve 13. The intake valve 13 is fixedly installed at the air inlet of the screw compressor head by a flange or bolts, forming a complete pre-air circuit system of "air filtration - flow regulation - compressor head air intake". The intake valve 13 is the core component for regulating the intake air volume of the compressor. By controlling the opening and closing degree of the cylinder, the gap between the valve plate and the inner wall of the intake channel is changed, thereby regulating the intake air volume.

[0020] Furthermore, the drive compression system 3 includes a motor 31, a screw compressor, and a coupling 33, wherein the screw compressor and the motor 31 are connected by the coupling 33.

[0021] In this embodiment, the motor 31 serves as the main power source of the system, and is synchronously driven with the screw compressor 32 through the coupling 33. This transmission system has excellent alignment performance, ensuring rigid alignment between the motor 31 shaft and the main compressor input shaft. There is almost no slippage during torque transmission, and the transmission efficiency is no less than 98%. The coupling 33 has a certain degree of flexible compensation capability, which can effectively buffer the ±3° angular deviation and ±0.1mm radial deviation generated during system operation, thereby reducing the additional load caused by alignment errors.

[0022] Furthermore, the oil-gas separation system 4 includes a high-efficiency oil-gas separation cylinder 41, and the interior of the high-efficiency oil-gas separation cylinder 41 is provided with a cyclone separation structure and an oil-gas separation filter element.

[0023] In this embodiment, the high-efficiency oil-gas separator 41 uses a combination of physical impact, centrifugal separation, sedimentation separation, and oil-gas separation filter element filtration to efficiently intercept micron-sized oil droplets, reducing the oil content of the compressed air after processing by the oil-gas separation system 4 to an extremely low level, thus completing the separation process of the oil-gas mixture. Finally, the separated lubricating oil flows back to the main unit for recycling under the action of pressure difference, while the clean compressed air is discharged through the system outlet to the minimum pressure valve.

[0024] Furthermore, the cooling system 5 includes a shell-and-tube cooler 51 and a plate heat exchanger 52, which are disposed on one side of the centralized gas supply transition box 11.

[0025] In this embodiment, water is used as a cooling medium to efficiently displace the large amount of heat absorbed by the lubricating oil during compression, thereby improving system reliability, optimizing energy efficiency, saving energy, reducing maintenance costs, and extending the service life of the oil and oil filter.

[0026] Furthermore, the oil filtration system 6 includes a temperature control valve 61, a coarse filter 62, and a fine filter 63, which are disposed on one side of the centralized gas supply transition box 11.

[0027] In this embodiment, the temperature control valve 61 adopts a compact integrated block form, which has a built-in high-precision temperature sensing element that can accurately sense changes in lubricating oil temperature in real time and automatically adjust the ratio of oil flowing through the oil cooler 51 and the bypass pipeline accordingly. This can effectively stabilize the unit's exhaust temperature within the optimal range and avoid excessively high or low operating temperatures that could affect its use.

[0028] The above-disclosed embodiments are merely preferred embodiments of the present utility model and should not be construed as limiting the scope of the present utility model. Those skilled in the art can understand that implementing all or part of the above-described embodiments and making equivalent changes in accordance with the claims of the present utility model are still within the scope of the utility model.

Claims

1. An open-type water-cooled variable frequency two-stage compressor screw compressor structure, comprising a rigid base frame, characterized in that, It also includes an intake system, an electrical control system, a drive compression system, an oil-gas separation system, a cooling system, and an oil filtration system, all of which are located above the rigid base frame. The air intake system includes a centralized air supply transition box, several air filters, and an air intake valve. One end of each of the air filters is connected to the centralized air supply transition box and is located on the outside of the centralized air supply transition box. The air intake valve is located on one side of the centralized air supply transition box, and the other end of each of the air filters is connected to the air intake valve.

2. The open-type water-cooled variable frequency two-stage compressor screw compressor structure as described in claim 1, characterized in that, The drive compression system includes a motor, a screw compressor, and a coupling, with the screw compressor and the motor connected via the coupling.

3. The open-type water-cooled variable frequency two-stage compressor screw compressor structure as described in claim 2, characterized in that, The oil-gas separation system includes a high-efficiency oil-gas separation cylinder, and the interior of the high-efficiency oil-gas separation cylinder is equipped with a cyclone separation structure and an oil-gas separation filter element.

4. The open-type water-cooled variable frequency two-stage compressor screw compressor structure as described in claim 3, characterized in that, The cooling system includes a shell-and-tube cooler and a plate heat exchanger, which are located on one side of the centralized gas supply transition box.

5. The open-type water-cooled variable frequency two-stage compressor screw compressor structure as described in claim 4, characterized in that, The oil filtration system includes a temperature control valve, a coarse filter, and a fine filter, which are located on one side of the centralized gas supply transition box.

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