Air compressor drainage system and control method thereof

Abstract

The invention discloses an air compressor drainage system and a control method thereof. The air compressor drainage system comprises a drainage pipe and a bypass pipe, and one end of the drainage pipe is connected with a drainage port of an air compressor; a drain valve is arranged on the drain pipe; the bypass pipe is connected with the drain pipe and serves as a bypass of the drain pipe, and the joint of the bypass pipe and the drain pipe is located between the water outlet of the air compressor and the first valve; the bypass pipe is provided with an electromagnetic valve; the electromagnetic valve is electrically connected with a control unit, the control unit correspondingly sets control strategies according to different seasons so as to control working parameters of the electromagnetic valve, the control strategies are correspondingly set according to the different seasons, and the working parameters of the electromagnetic valve are controlled through the set control strategies; and residual water in the pipeline can be regularly and quantitatively discharged according to seasonal changes, so that specific working conditions can be flexibly adapted, and the operation efficiency of a unit is guaranteed.

Description

Technical Field

[0001] The invention relates to an air compressor drain system and a control method thereof, belonging to the technical field of air compressors. Background Art

[0002] During the steel production process, oxygen concentrators primarily provide the oxygen, nitrogen, and argon gases needed for smelting. Compressing air with an air compressor is the first and most essential step in the oxygen concentrator's operation. Therefore, ensuring safe and stable operation of the air compressor and minimizing compression energy consumption are crucial aspects of oxygen concentrator operation.

[0003] Air contains a certain amount of water vapor, normally expressed as humidity. In midsummer, when humidity reaches over 80%, a large amount of water is released from the air compressor during the compression process. When the compressor rotor and impeller encounter large amounts of water during high-speed operation, this can easily impact the impeller, causing wear and corrosion. Therefore, after each compression stage, the released water is discharged from the compressor through a steam trap.

[0004] After air enters the air compressor, a small amount of dust and other impurities in the air can enter the steam trap during the drainage process, potentially causing it to clog. Therefore, after a period of use, the steam trap's drainage performance deteriorates, requiring regular cleaning or replacement.

[0005] Normal air compressor steam trap operation consists of a main circuit and a bypass. The bypass needs to be opened regularly to check the working condition of the steam trap system and drain excess water. When the steam trap is not draining effectively, the bypass valve can be opened appropriately to supplement the drainage effect. However, if the bypass valve is opened too long or too wide, compressed gas in the air compressor will be discharged, affecting the unit's output and increasing equipment energy consumption. Summary of the Invention

[0006] The purpose of the present invention is to overcome the shortcomings of the prior art and provide an air compressor drain system and control method thereof. A solenoid valve is used to modify the air compressor drain pipe. By regularly and quantitatively draining the excess water in the pipe according to seasonal changes, the system can flexibly adapt to specific working conditions and ensure the operating efficiency of the unit.

[0007] To achieve the above object, the present invention is implemented by adopting the following technical solutions: In a first aspect, the present invention provides an air compressor drain system, comprising: A drain pipe, one end of which is connected to the drain outlet of the air compressor; a drain valve is provided on the drain pipe; A bypass pipe connected to the drain pipe and serving as a bypass of the drain pipe, wherein the connection between the bypass pipe and the drain pipe is located between the drain port of the air compressor and the drain valve; the bypass pipe is provided with a solenoid valve; The solenoid valve is electrically connected to a control unit, and the control unit sets a control strategy corresponding to different seasons to control the working parameters of the solenoid valve.

[0008] Furthermore, the control unit is a DCS control system; The solenoid valve is connected to a DCS control system and the opening duration, closing duration and valve opening degree are controlled by the DCS control system.

[0009] Furthermore, the control strategy is set correspondingly according to different seasons to control the working parameters of the solenoid valve, including: Corresponding to spring, summer, autumn and winter, the opening time, closing time and valve opening of the solenoid valve are set respectively.

[0010] Furthermore, the opening time, closing time and valve opening degree preset according to the season include: Spring: Set the solenoid valve to be energized for 30 seconds, the valve will open and the opening degree will be 25%, and then the power will be lost for 1000 seconds, the valve will be fully closed. The switching operation is carried out in this way, and the whole process is automatically controlled by the DCS program; Summer: Set the solenoid valve to be energized for 30 seconds, the valve will open and the opening degree will be 30%, and then the power will be lost for 300 seconds, and the valve will be fully closed; Winter: Set the solenoid valve to be energized for 30 seconds, the valve will open and the opening degree will be 20%; then it will be de-energized for 2000 seconds, and the valve will be fully closed; Autumn: Set the solenoid valve to be energized for 30 seconds, the valve will open and the opening degree will be 25%, and then the power will be lost for 1000 seconds, and the valve will be fully closed.

[0011] Furthermore, the other end of the drain pipe is connected to a drain trap.

[0012] In a second aspect, the present invention provides a control method, which is applicable to any of the above-mentioned air compressor drain systems, comprising: Set the control strategy of the solenoid valve accordingly according to different seasons; According to the pre-set control strategy, the working parameters of the solenoid valve are controlled.

[0013] Furthermore, the control strategy of the solenoid valve is set accordingly according to different seasons, including: Corresponding to spring, summer, autumn and winter, the opening time, closing time and valve opening of the solenoid valve are set respectively.

[0014] Furthermore, the step of setting the opening duration, closing duration, and valve opening of the solenoid valve according to the season includes: Spring: Set the solenoid valve to be energized for 30 seconds, the valve will open and the opening degree will be 25%, and then the power will be lost for 1000 seconds, the valve will be fully closed. The switching operation is carried out in this way, and the whole process is automatically controlled by the DCS program; Summer: Set the solenoid valve to be energized for 30 seconds, the valve will open and the opening degree will be 30%, and then the power will be lost for 300 seconds, and the valve will be fully closed; Winter: Set the solenoid valve to be energized for 30 seconds, the valve will open and the opening degree will be 20%; then it will be de-energized for 2000 seconds, and the valve will be fully closed; Autumn: Set the solenoid valve to be energized for 30 seconds, the valve will open and the opening degree will be 25%, and then the power will be lost for 1000 seconds, and the valve will be fully closed.

[0015] Compared with the prior art, the present invention has the following beneficial effects: The present invention provides an air compressor drain system and a control method thereof, wherein a solenoid valve is provided in a bypass pipe of a drain pipe; the solenoid valve is electrically connected to a control unit, and the control unit sets a control strategy corresponding to different seasons. The control strategy is used to control the working parameters of the solenoid valve, so that the air compressor drain system of the present invention can regularly and quantitatively discharge residual water in the pipeline according to seasonal changes, and can further flexibly adapt to the specific working conditions corresponding to different seasons, thereby ensuring the operating efficiency of the entire unit. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of an air compressor drain system provided by an embodiment of the present invention.

[0017] In the figure: 1. Drain pipe; 2. Bypass pipe; 3. Drain valve; 4. Solenoid valve; 5. Drain device. DETAILED DESCRIPTION

[0018] The present invention will be further described below in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solutions of the present invention and are not intended to limit the scope of protection of the present invention.

[0019] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0020] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances. Example

[0021] See also Figure 1 This embodiment introduces an air compressor drain system, including a drain pipe 1 and a bypass pipe 2.

[0022] Specifically, a drain pipe 1 serves as the main drainage circuit, with one end connected to the air compressor's drain outlet and the other end connected to a steam trap 5. A steam trap 3 is installed on the drain pipe 1. A bypass pipe 2 connects to the drain pipe 1 and bypasses it, with the junction between the air compressor's drain outlet and the steam trap 3. A solenoid valve 4 is installed on the bypass pipe 2. The solenoid valve 4 is electrically connected to a control unit, which sets a control strategy to control the operating parameters of the solenoid valve 4 according to the season. The outlet pipe of the steam trap 5 and the outlet of the bypass pipe 2 are both located in a drain ditch, ultimately draining the remaining water into the ditch.

[0023] In the above scheme, the air compressor steam trap pipeline is modified and the remaining water in the pipeline is drained regularly to ensure that the water can be discharged from the air compressor in time during the operation of the air compressor, ensuring the safe and stable operation of the equipment.

[0024] Specifically, in this embodiment, the control unit utilizes a DCS control system. Solenoid valve 4 is connected to the DCS and controlled by the DCS. The DCS allows for configurable power-on and power-off times for solenoid valve 4, thereby controlling the valve to periodically open and close to a fixed degree to drain excess water from the air compressor. Furthermore, the opening and closing times of solenoid valve 4 can be programmed and adjusted manually within the DCS, and the degree of opening can also be set manually.

[0025] In addition, in this embodiment, the control strategy preset according to the season is the opening time, closing time and valve opening degree preset according to the season.

[0026] More specifically, in this embodiment, the opening duration, closing duration and valve opening of the corresponding solenoid valve 4 are set according to the four seasons of spring, summer, autumn and winter, specifically: Spring: Set solenoid valve 4 to be energized for 30 seconds, the valve is open and the opening is 25%, and then the power is lost for 1000 seconds, the valve is fully closed. The switching operation is performed in this way, and the whole process is automatically controlled by the DCS program.

[0027] Summer: Set the solenoid valve 4 to be energized for 30 seconds, the valve is open and the opening is 30%, and then lose power for 300 seconds, and the valve is fully closed.

[0028] Winter: Set solenoid valve 4 to be energized for 30 seconds, the valve is open and the opening is 20%; then de-energize for 2000 seconds, the valve is fully closed.

[0029] Autumn: Set the solenoid valve 4 to be energized for 30 seconds, the valve is open and the opening is 25%, and then the power is lost for 1000 seconds, and the valve is fully closed.

[0030] In summary, the air compressor drain system provided in this embodiment can determine the optimal switching time between energizing and de-energizing the solenoid valve 4 through timely experiments based on different operating conditions or equipment. Specifically, the valve opening setting and the duration of the valve's complete closure can be optimized through timely experiments based on different operating conditions or equipment. This ensures that water is discharged in a timely manner during the air compressor's compression process while preventing excessive compressed gas from being discharged. This improves equipment production stability and safety, and effectively achieves energy conservation and emission reduction. Example

[0031] This embodiment provides a control method applicable to an air compressor drain system provided in Example 1, comprising: S100 , presetting the control strategy of the solenoid valve 4 according to the season.

[0032] Specifically, in this embodiment, the opening duration, closing duration, and valve opening of the solenoid valve 4 are set according to the season, and the opening duration, closing duration, and valve opening of the solenoid valve 4 are set according to the four seasons of spring, summer, autumn, and winter respectively: Spring: Set solenoid valve 4 to be energized for 30 seconds, the valve is open and the opening is 25%, and then the power is lost for 1000 seconds, the valve is fully closed. The switching operation is performed in this way, and the whole process is automatically controlled by the DCS program.

[0033] Summer: Set the solenoid valve 4 to be energized for 30 seconds, the valve is open and the opening is 30%, and then lose power for 300 seconds, and the valve is fully closed.

[0034] Winter: Set solenoid valve 4 to be energized for 30 seconds, the valve is open and the opening is 20%; then de-energize for 2000 seconds, the valve is fully closed.

[0035] Autumn: Set the solenoid valve 4 to be energized for 30 seconds, the valve is open and the opening is 25%, and then the power is lost for 1000 seconds, and the valve is fully closed.

[0036] S200 , controlling the operating parameters of the solenoid valve 4 according to a preset control strategy.

[0037] Example 3: This embodiment provides a computer-readable storage medium on which a computer program is stored. When the program is executed by a processor, the steps of any one of the methods described in Example 2 are implemented.

[0038] Embodiment 4: This embodiment provides a computer device, including: Memory, used to store computer programs / instructions; A processor, configured to execute the computer program / instructions to implement the steps of any one of the methods described in Example 2.

[0039] Example 5: This embodiment provides a computer program product, including a computer program / instruction, which implements the steps of any method described in Example 1 when executed by a processor.

[0040] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

[0041] Those skilled in the art will appreciate that embodiments of the present disclosure may be provided as methods, systems, or computer program products. Thus, the present disclosure may take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, the present disclosure may take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to magnetic disk storage, CD-ROMs, optical storage, etc.) containing computer-usable program code.

[0042] The present disclosure is described with reference to flowcharts and / or block diagrams of methods, devices (systems), and computer program products according to embodiments of the present disclosure. It should be understood that each process and / or block in the flowcharts and / or block diagrams, as well as combinations of processes and / or blocks in the flowcharts and / or block diagrams, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing device to produce a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the processes in the flowcharts and / or block diagrams. Figure 1 a process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0043] These computer program instructions may also be stored in a computer readable memory that can direct a computer or other programmable data processing device to work in a specific manner, so that the instructions stored in the computer readable memory produce an article of manufacture comprising an instruction device, which implements the process Figure 1 a process or multiple processes and / or boxes Figure 1 The function specified in one or more boxes.

[0044] These computer program instructions can also be loaded onto a computer or other programmable data processing device so that a series of operational steps are executed on the computer or other programmable device to produce a computer-implemented process, thereby providing the instructions executed on the computer or other programmable device for implementing the process. Figure 1 a process or multiple processes and / or boxes Figure 1 A step that specifies a function in one or more boxes.

[0045] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present disclosure and are not intended to limit its scope of protection. Although the present disclosure has been described in detail with reference to the above embodiments, ordinary technicians in the relevant field should understand that after reading the present disclosure, those skilled in the art can still make various changes, modifications or equivalent substitutions to the specific implementation methods of the invention, but these changes, modifications or equivalent substitutions are all within the scope of protection of the disclosed claims to be approved.

Claims

1. An air compressor drain system, characterized in that: include: A drain pipe, one end of which is connected to the drain outlet of the air compressor; a drain valve is provided on the drain pipe; A bypass pipe connected to the drain pipe and serving as a bypass of the drain pipe, wherein the connection between the bypass pipe and the drain pipe is located between the drain port of the air compressor and the drain valve; the bypass pipe is provided with a solenoid valve; The solenoid valve is electrically connected to a control unit, and the control unit sets a control strategy corresponding to different seasons to control the working parameters of the solenoid valve.

2. The air compressor drain system according to claim 1, characterized in that: The control unit is a DCS control system; The solenoid valve is connected to a DCS control system and the opening duration, closing duration and valve opening degree are controlled by the DCS control system.

3. The air compressor drain system according to claim 2, characterized in that: The control strategy is set correspondingly according to different seasons to control the working parameters of the solenoid valve, including: Corresponding to spring, summer, autumn and winter, the opening time, closing time and valve opening of the solenoid valve are set respectively.

4. The air compressor drain system according to claim 3, characterized in that: The opening time, closing time and valve opening degree preset according to the season include: Spring: Set the solenoid valve to be energized for 30 seconds, the valve will open and the opening degree will be 25%, and then the power will be lost for 1000 seconds, the valve will be fully closed. The switching operation is carried out in this way, and the whole process is automatically controlled by the DCS program; Summer: Set the solenoid valve to be energized for 30 seconds, the valve will open and the opening degree will be 30%, and then the power will be lost for 300 seconds, and the valve will be fully closed; Winter: Set the solenoid valve to be energized for 30 seconds, the valve will open and the opening degree will be 20%; then it will be de-energized for 2000 seconds, and the valve will be fully closed; Autumn: Set the solenoid valve to be energized for 30 seconds, the valve will open and the opening degree will be 25%, and then the power will be lost for 1000 seconds, and the valve will be fully closed.

5. The air compressor drain system according to claim 1, characterized in that: The other end of the drain pipe is connected to the drain trap.

6. A control method, characterized in that: The control method is applicable to the air compressor drain system according to any one of claims 1 to 5, comprising: Set the control strategy of the solenoid valve accordingly according to different seasons; According to the pre-set control strategy, the working parameters of the solenoid valve are controlled.

7. The control method according to claim 6, characterized in that: The control strategy of the solenoid valve is set accordingly according to different seasons, including: Corresponding to spring, summer, autumn and winter, the opening time, closing time and valve opening of the solenoid valve are set respectively.

8. The control method according to claim 7, characterized in that: The method of setting the opening time, closing time and valve opening of the solenoid valve according to the season includes: Spring: Set the solenoid valve to be energized for 30 seconds, the valve will open and the opening degree will be 25%, and then the power will be lost for 1000 seconds, the valve will be fully closed. The switching operation is carried out in this way, and the whole process is automatically controlled by the DCS program; Summer: Set the solenoid valve to be energized for 30 seconds, the valve will open and the opening degree will be 30%, and then the power will be lost for 300 seconds, and the valve will be fully closed; Winter: Set the solenoid valve to be energized for 30 seconds, the valve will open and the opening degree will be 20%; then it will be de-energized for 2000 seconds, and the valve will be fully closed; Autumn: Set the solenoid valve to be energized for 30 seconds, the valve will open and the opening degree will be 25%, and then the power will be lost for 1000 seconds, and the valve will be fully closed.

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