Intelligent shutter control system for outdoor electric drive oil injection screw compressor

Abstract

The intelligent shutter control system comprises a shutter, a driving device, an exhaust temperature sensor, an environment temperature sensor and a controller, the shutter is installed on a machine box of a compressor unit, the driving device is in transmission connection with blades of the shutter, the exhaust temperature sensor is connected with the controller, and the environment temperature sensor is connected with the controller. The exhaust temperature sensor is used for detecting the exhaust temperature of the compressor unit in real time, and the environment temperature sensor is used for detecting the environment temperature of the compressor unit in real time; the driving device, the exhaust temperature sensor and the environment temperature sensor are all electrically connected with the controller, the controller can intelligently adjust the opening and closing degree of the blind window according to changes of the exhaust temperature and the environment temperature of the compressor unit, the heat dissipation air volume can be automatically adjusted, the operation requirements of personnel can be reduced, and the purposes of high efficiency and intelligentization are achieved.

Description

Technical Field

[0001] The utility model relates to the field of compressors, and in particular to an intelligent shutter control system for an outdoor electric-driven oil-injected screw compressor. Background Art

[0002] With the advancement of the carbon neutrality goal, traditional high-energy consumption, high-emission diesel engine-driven compressors will face pressure for transformation and upgrading. Therefore, electric-driven compressors have become one of the important equipment for energy conservation and emission reduction, and will play an important role in the process of industrial upgrading.

[0003] However, electric compressors are still challenging to use in cold regions such as the north and high altitudes. Figure 1 This is a schematic diagram of the structure of a conventional electric drive compressor. When the compressor is shut down, the shutters need to be closed to form a closed space inside the chassis, and then the heater is used to heat it to achieve the insulation function to prevent the water in the control pipeline and other components from freezing and causing blockage. When the compressor is started, the shutters need to be opened and the opening angle of the shutter blades needs to be adjusted in real time. If the angle is too large, the lubricating oil in the cooler will become viscous due to the large air volume, causing the cooler to be blocked. If the angle is too small, the oil temperature will be too high due to insufficient air volume, which will cause the whole machine to shut down due to high temperature.

[0004] Most existing electric drive compressors use manual shutters, which require manual closing / opening of the shutters and adjustment of the opening angle of the shutter blades. The operation is time-consuming and labor-intensive, and it is difficult to manually control the opening angle of the blades. Utility Model Content

[0005] In view of this, an embodiment of the utility model provides an intelligent shutter control system for an outdoor electric-driven oil-injected screw compressor to solve the technical problems that manual shutter operation is time-consuming and labor-intensive and it is difficult to manually control the opening angle of the blades.

[0006] The utility model provides an intelligent shutter control system for an outdoor electric-driven oil-injected screw compressor, comprising:

[0007] A shutter, mounted on the casing of the compressor unit and having blades that can be rotated to open and close;

[0008] A driving device, drivingly connected to the rotating shaft of the blade, for driving the blade to rotate;

[0009] Exhaust temperature sensor, used to detect the exhaust temperature of the compressor unit in real time;

[0010] An ambient temperature sensor, used to detect the ambient temperature of the compressor unit in real time; and

[0011] A controller, the drive device, the exhaust temperature sensor and the ambient temperature sensor are all electrically connected to the controller, and the controller is configured to be able to control the drive device to drive the blade to rotate according to the received exhaust temperature signal and ambient temperature signal, so as to automatically adjust the opening angle of the blade.

[0012] Optionally, it further includes an angle sensor for real-time detecting the opening angle of the blade, and the angle sensor is electrically connected to the controller.

[0013] Optionally, when the compressor unit is in a shutdown state and the ambient temperature of the compressor unit is lower than a set value, the controller controls the drive device to drive the blade to automatically close.

[0014] Optionally, the drive device adopts an electric push rod.

[0015] Optionally, there are two louvers, and the two louvers are respectively arranged corresponding to the cooler and the fan of the compressor unit.

[0016] The embodiment of the present utility model has the following beneficial effects: electrically connecting the exhaust temperature sensor, the ambient temperature sensor and the drive device to the controller, enabling the controller to intelligently adjust the opening and closing degree of the louver according to the changes in the exhaust temperature and ambient temperature of the compressor unit, which can not only automatically adjust the heat dissipation air volume, but also reduce the personnel operation requirements, achieving the purpose of high efficiency and intelligence. Description of the Drawings

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present utility model. For those skilled in the art, without creative efforts, other drawings can also be obtained according to these drawings.

[0018] Figure 1 It is a schematic structural diagram of an electric drive oil-injected screw compressor;

[0019] Figure 2 It is a schematic connection principle diagram of the embodiment of the present utility model;

[0020] The numbers in the figure represent:

[0021] 1, louver; 2, drive device; 3, exhaust temperature sensor; 4, ambient temperature sensor; 5, angle sensor; 6, controller; 7, compressor unit. Detailed Embodiments

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the utility model. In addition, it should be understood that the specific implementation methods described herein are only used to illustrate and explain the utility model, and are not used to limit the utility model.

[0023] See also Figure 1 , Figure 2 As shown, an embodiment of the utility model provides an intelligent shutter control system for an outdoor electric-driven oil-injected screw compressor, including a shutter 1, a drive device 2, an exhaust temperature sensor 3, an ambient temperature sensor 4, an angle sensor 5 and a controller 6.

[0024] The shutter 1 is installed on the chassis of the compressor unit 7 and is provided with blades that can be rotated to open and close; specifically, two shutters 1 are usually arranged on the chassis, and the two shutters 1 are respectively arranged corresponding to the cooler and fan of the compressor unit 7 to facilitate exhaust and heat dissipation.

[0025] The driving device 2 is connected to the rotating shaft of the blades and is used to drive the blades of the shutter 1 to rotate. The heat dissipation air volume can be adjusted by adjusting the opening angle of the blades of the shutter 1. For reference, the driving device 2 in the embodiment of the utility model adopts an electric push rod, which can be connected to the rotating shaft of the blades through conventional transmission structures such as gears and racks, and the blades are driven to rotate by the extension and retraction of the electric push rod.

[0026] The exhaust temperature sensor 3 is used to detect the exhaust temperature of the compressor unit 7 in real time, and the ambient temperature sensor 4 is used to detect the ambient temperature of the compressor unit 7 in real time. The drive device 2, the exhaust temperature sensor 3 and the ambient temperature sensor 4 are all electrically connected to the controller 6. The controller 6 can control the drive device 2 to drive the blades to rotate according to the received exhaust temperature signal and ambient temperature signal, thereby automatically adjusting the opening angle of the blades and adjusting the heat dissipation air volume to maintain the exhaust temperature within a reasonable range. The angle sensor 5 is also electrically connected to the controller 6. The angle sensor 5 can detect the blade opening angle of the shutter 1 in real time, so that the controller 6 can judge the current heat dissipation air volume by the blade opening angle.

[0027] In addition, when the compressor unit 7 is in a shutdown state (including a fault shutdown), if the ambient temperature of the compressor unit 7 is lower than the set value, the controller 6 will control the drive device 2 to drive the blades of the shutter 1 to automatically close, so as to form a sealed space inside the chassis, cooperate with the heater inside the chassis to keep the compressor unit 7 warm, and avoid blockage caused by the freezing of moisture in components such as the control pipeline due to too low internal temperature.

[0028] In this article, specific examples are used to elaborate on the principle and implementation manner of the present utility model. The description of the above embodiments is only used to help understand the technical solution and its core idea of the present utility model; those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present utility model.

Claims

1. An intelligent louver control system for an outdoor electric drive oil-injected screw compressor, characterized in that, include: A shutter, mounted on the casing of the compressor unit and having blades that can be rotated to open and close; A driving device, drivingly connected to the rotating shaft of the blade, for driving the blade to rotate; Exhaust temperature sensor, used to detect the exhaust temperature of the compressor unit in real time; Ambient temperature sensor, used to detect the ambient temperature of the compressor unit in real time; as well as The controller, the driving device, the exhaust temperature sensor and the ambient temperature sensor are all electrically connected to the controller, and the controller is configured to control the driving device to drive the blades to rotate according to the received exhaust temperature signal and ambient temperature signal to automatically adjust the opening angle of the blades.

2. The intelligent louver control system for an outdoor electric drive oil-injected screw compressor according to claim 1, wherein: It also includes an angle sensor for detecting the opening angle of the blade in real time, and the angle sensor is electrically connected to the controller.

3. The intelligent louver control system for an outdoor electric drive oil-injected screw compressor according to claim 1, wherein: When the compressor unit is in a stopped state and the ambient temperature of the compressor unit is lower than a set value, the controller controls the driving device to drive the blades to close automatically.

4. The intelligent louver control system for an outdoor electric drive oil-injected screw compressor according to claim 1, wherein: The driving device adopts an electric push rod.

5. The intelligent louver control system for an outdoor electric drive oil-injected screw compressor according to claim 1, characterized in that: There are two shutters, and the two shutters are respectively arranged corresponding to the cooler and the fan of the compressor unit.

Images