Efficient air intake system for air compressor

Abstract

The application provides a high-efficiency air inlet system of an air compressor, which comprises a plurality of air compressors, a plurality of air compressor air inlet units / air compressor suction filter and an air compressor starting control box, each air compressor is connected with the air compressor starting control box through an air compressor starting control circuit, the plurality of air compressors are connected in parallel, each air compressor air inlet pipe is connected with a pneumatic airlock, the pneumatic airlock is connected with the air compressor starting control box through a specific control circuit; the air compressor air inlet pipes on both sides are connected with the air compressor air inlet units / air compressor suction filter through a tee joint, the air compressor air inlet pipes in the middle are connected with the air compressor air inlet units / air compressor suction filter through a cross joint, the tee joint and the cross joint are located on the side of the pneumatic airlock close to the air compressor air inlet units / air compressor suction filter, and the adjacent tee joints and cross joints and the adjacent two cross joints are communicated through horizontal connecting pipes. The high-efficiency air inlet system of the air compressor increases the air inlet area of the air compressor suction filter or the air inlet unit, reduces the air resistance, and thus reduces the useless energy consumption of the air compressor.

Description

Technical Field

[0001] This invention belongs to the field of air compressor energy-saving technology, specifically relating to an efficient air intake system for air compressors. Background Technology

[0002] Many industries in modern manufacturing rely on air compressors to produce compressed air for product manufacturing. Meanwhile, under the overarching trend of green development, energy conservation and emission reduction are clearly essential choices for every enterprise. Air compressor energy consumption accounts for at least 20% of a company's total energy consumption; therefore, continuously exploring energy-saving measures for air compressors, reducing energy consumption, and improving air compressor efficiency are of great significance to enterprises. Many factors affect air compressor efficiency, and there are opportunities and methods for energy saving in many aspects. Among these, improving the structural arrangement of the air compressor's inlet filter or intake unit is a crucial foundation for improving air compressor efficiency.

[0003] To protect the internal components of an air compressor from dust, impurities, and other solid particles from entering the machine and ensure safe operation, each air compressor typically has an intake filter or intake unit at its inlet. However, air contains a large amount of dust, impurities, and other particulate matter, which continuously accumulates on the air compressor's intake filter or intake unit during operation. This gradually causes blockage, increasing intake air resistance. Increased intake air resistance undoubtedly leads to higher wasted energy consumption. The more severe the blockage, the higher the wasted energy consumption. Therefore, exploring a method for an efficient air compressor intake system is of great significance. Summary of the Invention

[0004] To solve the above-mentioned technical problems, the present invention provides an efficient air intake system for air compressors, which increases the air intake area of ​​the air compressor inlet filter or air intake unit and reduces air resistance, thereby reducing the useless energy consumption of the air compressor.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A high-efficiency air intake system for an air compressor includes several air compressors, several air compressor intake units / air compressor inlet filters, and an air compressor start-up control box. Each air compressor is electrically connected to the air compressor start-up control box, and the air compressors are connected in parallel. A pneumatic damper is connected to the intake pipe of each air compressor. The pneumatic damper is linked to the air compressor start-up control box via a specific control circuit. The pneumatic damper is equipped with a "closed" limit switch to provide feedback on the closed state of the damper. The feedback signal of the "closed" limit switch is interlocked with the safe start of the air compressor; the air compressor intake pipes on both sides are connected to the air compressor intake unit / air compressor inlet filter through tees, and the air compressor intake pipe in the middle is connected to the air compressor intake unit / air compressor inlet filter through four-way connectors, and the tees and four-way connectors are all located on the side of the pneumatic damper near the air compressor intake unit / air compressor inlet filter; adjacent tees and four-way connectors, as well as two adjacent four-way connectors, are connected by transverse connecting pipes.

[0006] Furthermore, when the air compressor starts, the corresponding pneumatic damper automatically opens, and when the air compressor stops, the corresponding pneumatic damper closes after a delay of 5-10 minutes.

[0007] Furthermore, the tee is an equal diameter tee, the cross is an equal diameter cross, and the transverse connecting pipe is an equal diameter transverse connecting pipe.

[0008] Furthermore, the air compressor start control box is equipped with an air compressor start operation indicator and an air compressor stop operation indicator for each air compressor, as well as an air damper open indicator and an air damper closed indicator for each pneumatic damper.

[0009] Furthermore, the specific control circuit includes an air compressor stop switch SB12, an air compressor start switch SB11, an air compressor start relay contactor coil KM1, an air compressor intake solenoid valve coil KN1, an air compressor intake time relay coil KT1, a normally open contact KM1-1 of the air compressor start relay contactor, normally closed contacts KN1-1 of the two air compressor intake solenoid valves, a normally closed contact KT1-1 of the air compressor intake delay relay, a pneumatic butterfly valve open indicator light HR1, and a pneumatic butterfly valve closed indicator light HL1. The air compressor stop switch SB12, air compressor start switch SB11, air compressor start relay contactor coil KM1, and air compressor start relay contactor... The circuit consisting of normally open contact KM1-1 and two normally open contacts KN1-1 of the air compressor intake solenoid valves forms the air compressor start-up self-locking circuit. The air compressor intake solenoid valve coil KN1, the air compressor intake time delay relay coil KT1, one normally open contact KN1-1 of the air compressor intake solenoid valve, and the normally open contact KT1-1 of the air compressor intake time delay relay form the stop delay closing circuit. The pneumatic butterfly valve open indicator light HR1 and the pneumatic butterfly valve close indicator light HL1 are connected in parallel to form the solenoid valve open / close indicator circuit. The air compressor start-up self-locking circuit, the stop delay closing circuit, and the solenoid valve open / close indicator circuit are set in parallel. A line is led out from the normally open contact of the air compressor start-up relay contactor and connected to the air compressor.

[0010] The high-efficiency air intake system for air compressors of this invention uses several "tees" and "fours" of the same diameter as the air compressor inlets and horizontal connecting pipes to connect all the air compressor inlets in parallel, arranging them in a "fishbone" structure. This allows each originally independent air compressor inlet filter or intake unit to form a larger filter or intake unit, making full use of the air compressor inlet filters or intake units in standby mode. Furthermore, air compressors can be arbitrarily selected for combination and use according to needs and actual operating conditions, greatly increasing the air intake area of ​​the air compressor inlet filters or intake units. This effectively reduces air intake resistance, thereby reducing useless energy consumption of the air compressor. It plays a crucial foundational role in improving air compressor energy efficiency, contributing to the advancement of energy conservation and emission reduction efforts in enterprises, reducing air compressor energy consumption, and saving air compressor operating costs.

[0011] Meanwhile, a pneumatic damper of equal diameter is installed between the air compressor inlet and the horizontal connecting pipe. Controlled by a specific circuit, it achieves automatic control, preventing external debris from entering the air compressor inlet when replacing or repairing the air compressor inlet filter or intake unit, and also protecting the air compressor from abnormal startup. When the air compressor is put into operation, this damper automatically opens. A "closed" limit switch is installed on the pneumatic damper to provide feedback on its closed state. The feedback signal from the pneumatic damper's "closed" limit switch is interlocked with the air compressor's safe startup; if the damper is not open, the air compressor cannot start.

[0012] This invention provides a simple, safe, and efficient air compressor intake system structure, which can effectively reduce air compressor intake resistance, reduce useless power consumption of the air compressor, and has significant energy-saving and emission-reduction effects, making it highly valuable for promotion. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the high-efficiency air intake system for the air compressor described in this invention; Figure 2 This is a schematic diagram of the structure of a specific control circuit described in this invention.

[0014] Among them, 1-air compressor start control circuit, 2-air compressor, 3-air compressor inlet pipe, 4-pneumatic air damper, 5-equal diameter tee, 6-equal diameter transverse connecting pipe, 7-equal diameter four-way, 9-air compressor inlet unit / air compressor suction filter, 10-air compressor start control box, 11-air compressor start operation indicator light, 12-air compressor stop operation indicator light, 13-air damper open indicator light, 14-air damper closed indicator light. Implementation

[0015] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present invention.

[0016] like Figure 1As shown, an efficient air intake system for an air compressor is described. In the air compressor station system, each air compressor 2 is connected to an air compressor start control box 10 via an air compressor start control circuit 1. Several air compressors 2 are connected in parallel. A pneumatic damper 4 is connected to each air compressor intake pipe 3. The pneumatic damper 4 is linked to the air compressor start control box 10 via a specific control circuit 15. The pneumatic damper 4 is equipped with a "closed" limit switch to provide feedback on the closed state of the damper. The feedback signal of the "closed" limit switch of the pneumatic damper 4 is interlocked with the safe start of the air compressor. The air compressor intake pipes 3 located on both sides are connected to the air compressor intake unit / air compressor inlet filter 9 via equal diameter tees 5. The air compressor intake pipe 3 located in the middle is connected to the air compressor intake unit / air compressor inlet filter 9 via equal diameter four-way connectors 7. The equal diameter tees 5 and equal diameter four-way connectors 7 are located at the pneumatic dampers. 4. The side closest to the air compressor intake unit / air compressor inlet filter 9; adjacent equal diameter tees 5 and equal diameter fours 7, as well as two adjacent equal diameter fours, are connected by equal diameter transverse connecting pipes 6, arranging all air compressors and their corresponding intake units in a "fishbone" structure; the air compressor start control box 10 is equipped with an air compressor start indicator 11 and an air compressor stop indicator 12 for each air compressor, as well as an air damper open indicator 13 and an air damper closed indicator 14 for each pneumatic damper; when the air compressor start button is pressed on the PLC main start control panel of the air compressor control box, the pneumatic damper 4 automatically opens and outputs a pneumatic damper closed position signal, which is fed back to the air compressor PLC controller. If the pneumatic damper 4 is not open, the air compressor cannot start; when the air compressor stops running, the pneumatic damper automatically closes after a delay of 10-15 minutes. Figure 2As shown, the specific control circuit connected to each air compressor is identical in form. Taking air compressor No. 1 as an example, the specific control circuit includes an air compressor start switch SB12, an air compressor stop switch SB11, an air compressor start relay contactor coil KM1, an air compressor intake solenoid valve coil KN1, an air compressor intake time relay coil KT1, a normally open contact of the air compressor start relay contactor KM1-1, two normally closed contacts of the air compressor intake solenoid valves KN1-1, a normally closed contact of the air compressor intake delay relay KT1-1, a pneumatic butterfly valve open indicator light HR1, and a pneumatic butterfly valve closed indicator light HL1. The air compressor start switch SB12, air compressor stop switch SB11, and air compressor start relay contactor coil... The circuit consisting of KM1, the normally open contact of the air compressor start relay contactor KM1-1, and the normally closed contact of the two air compressor intake solenoid valves KN1-1 forms the air compressor start self-locking circuit. The air compressor intake solenoid valve coil KN1, the air compressor intake time delay relay coil KT1, the normally closed contact of the air compressor intake solenoid valve KN1-1, and the normally closed contact of the air compressor intake time delay relay KT1-1 form the stop delay closing circuit. The pneumatic butterfly valve open indicator light HR1 and the pneumatic butterfly valve closed indicator light HL1 are connected in parallel to form the solenoid valve open / close indicator circuit. The air compressor start self-locking circuit, the stop delay closing circuit, and the solenoid valve open / close indicator circuit are set in parallel. The line is led out from the normally open contact of the air compressor start relay contactor and connected to the air compressor.

[0017] After pressing the air compressor start button, the normally open contact of the air compressor start contactor, together with the solenoid valve coil and solenoid valve position switch, forms an air compressor start self-locking circuit. When the air compressor stops, the solenoid valve is automatically cut off via a time-delay relay. Controlling the air compressor start relay contactor coil ensures that the air compressor starts when the intake valve is open and closes after a delay when the air compressor stops. In other words, the air compressor cannot work if the intake valve is not open, and it closes after a delay when the air compressor stops. The circuit includes an interlock circuit between the air compressor and the intake valve, a power-off delay circuit, and an intake valve indicator light circuit. Each first pneumatic butterfly valve is controlled by the air compressor start / stop control valve, and the second pneumatic butterfly valve can be controlled via the control box, allowing for free combination of air compressor post-processing equipment.

[0018] The SB11, together with the air compressor start relay contactor coil KM1 and the air compressor intake solenoid valve coil KN1, forms a self-locking circuit. It also serves as a safety protection circuit for air compressor startup; that is, the air compressor cannot start if the intake solenoid valve is not open. Simultaneously, the opening and closing status of the intake solenoid valve is fed back in real time through devices such as (HL1) and (HR1), forming a safety warning circuit. When the air compressor stops working, the SB12, together with the air compressor start relay contactor coil KM1, the air compressor intake solenoid valve coil KN1, and the time delay relay KT1, forms a self-locking circuit. It also serves as a timer circuit for air compressor safety protection; that is, after a delay of 20-30 minutes, the intake valve is automatically cut off, and the air compressor is shut down. It also forms a safety warning circuit with warning devices such as HL1 and HR1.

[0019] Press the air compressor start switch SB12, the air compressor KM1 is connected, the air compressor starts, the intake valve starts, and the pneumatic disc valve open indicator light HR1 illuminates; press the air compressor stop switch SB11, the air compressor KM1 is disconnected, the intake valve disconnects after a delay of 20-30 minutes via a time delay relay, and the pneumatic disc valve close indicator light HL1 illuminates.

[0020] Because at least 30%-50% of air compressors in an air compressor station system are in standby mode, this invention arranges the air compressors and their corresponding filters or intake units in a "fishbone" structure. This allows the filters or intake units of the standby air compressors to be put into use, increasing the air compressor intake area by at least 30%. Obviously, this greatly reduces the air compressor intake resistance, significantly extends the time the air compressor intake ventilation rate remains in good condition, and reduces the useless power consumption of the air compressor by about 4%, achieving good application results.

[0021] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

[0022] Those skilled in the art should understand that the above description is merely a specific embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A high-efficiency air intake system for an air compressor, characterized in that, It includes several air compressors, several air compressor intake units / air compressor inlet filters, and an air compressor start control box. Each air compressor is electrically connected to the air compressor start control box via a specific control circuit. The air compressors are connected in parallel. Each air compressor intake pipe is connected to a pneumatic damper. The pneumatic damper is linked to the air compressor start control box via a specific control circuit. The pneumatic damper is equipped with a "closed" limit switch to provide feedback on the closed state of the damper. The feedback signal from the pneumatic damper "closed" limit switch is interlocked with the safe start of the air compressor. When the compressor starts, the corresponding pneumatic damper automatically opens. When the air compressor stops, the corresponding pneumatic damper closes after a delay of 5-10 minutes. The air compressor intake pipes on both sides are connected to the air compressor intake unit / air compressor inlet filter via tees. The air compressor intake pipes in the middle are connected to the air compressor intake unit / air compressor inlet filter via four-way connectors. The tees and four-way connectors are all located on the side of the pneumatic damper closest to the air compressor intake unit / air compressor inlet filter. Adjacent tees and four-way connectors, as well as two adjacent four-way connectors, are connected by transverse connecting pipes.

2. The high-efficiency air intake system for an air compressor according to claim 1, characterized in that, The tee is an equal diameter tee, the cross is an equal diameter cross, and the transverse connecting pipe is an equal diameter transverse connecting pipe.

3. The high-efficiency air intake system for an air compressor according to claim 1, characterized in that, The air compressor start control box is equipped with an air compressor start indicator and an air compressor stop indicator for each air compressor, as well as an air damper open indicator and an air damper closed indicator for each pneumatic damper.

4. The high-efficiency air intake system for an air compressor according to claim 1, characterized in that, The specific control circuit includes an air compressor stop switch SB12, an air compressor start switch SB11, an air compressor start relay contactor coil KM1, an air compressor intake solenoid valve coil KN1, an air compressor intake time relay coil KT1, a normally open contact of the air compressor start relay contactor KM1-1, two normally open contacts of the air compressor intake solenoid valves KN1-1, a normally open contact of the air compressor intake delay relay KT1-1, a pneumatic butterfly valve open indicator light HR1, and a pneumatic butterfly valve closed indicator light HL1. The air compressor stop switch SB12, air compressor start switch SB11, air compressor start relay contactor coil KM1, and normally open contact of the air compressor start relay contactor... The circuit consisting of point KM1-1 and the two normally open contacts of the air compressor intake solenoid valves KN1-1 forms the air compressor start-up self-locking circuit. The air compressor intake solenoid valve coil KN1, the air compressor intake delay relay coil KT1, one normally open contact of the air compressor intake solenoid valve KN1-1, and the normally open contact of the air compressor intake delay relay KT1-1 form the stop delay closing circuit. The pneumatic butterfly valve open indicator light HR1 and the pneumatic butterfly valve close indicator light HL1 are connected in parallel to form the solenoid valve open / close indicator circuit. The air compressor start-up self-locking circuit, the stop delay closing circuit, and the solenoid valve open / close indicator circuit are set in parallel. A line is led out from the normally open contact of the air compressor start-up relay contactor and connected to the air compressor.

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