Super-efficient oil-free screw blower

Abstract

The utility model discloses a super-efficient oil-free screw air blower which comprises a machine box, a super-efficient oil-free screw air blower main machine, a center bracket, a coupler and a motor. A super-efficient oil-free screw air blower main machine is installed on the machine box base, the machine set is controlled to operate at the normal temperature through an air inlet system, an oil pressure maintaining system, a cooling system and an exhaust silencing system, the motor is electrically connected with a control system, and the control system comprises a programmable logic controller, a pressure sensor and an electromagnetic valve. And the programmable logic controller is connected with the motor through the frequency converter. The utility model has the characteristics of high working efficiency, energy conservation, space conservation, high reliability of the whole machine, long service life, low noise, low vibration, capability of achieving first-level energy efficiency and the like.

Description

Technical Field

[0001] The utility model relates to the technical field of air compression blowers, in particular to a super-efficient oil-free screw blower. Background Art

[0002] Many industries require high flow and low pressure compressed air, which is generally achieved with blowers. Ultra-high efficiency oil-free screw blowers are an important means of providing high flow and low pressure clean compressed air. How to reduce the energy consumption of ultra-high efficiency oil-free screw blowers, reduce costs, increase reliability, increase life, and reduce noise and vibration has always been a problem faced by blower manufacturers.

[0003] How to solve the above problems has become a technical problem that needs to be solved urgently. Utility Model Content

[0004] The utility model aims to provide an ultra-high-efficiency oil-free screw blower with high working efficiency, firm internal installation, high integration, space saving, high overall reliability, long service life and first-class energy efficiency.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] The utility model provides an ultra-high efficiency oil-free screw blower, comprising a chassis, an oil-free screw blower main engine, a center bracket, a coupling and a motor. The chassis comprises a shock absorbing system, an air intake system, an oil pressure maintaining system, a cooling system, an exhaust silencing system and a control system. The shock absorbing system comprises a plurality of shock absorbers, each of which is linearly arranged with a head support. The air intake system comprises an air inlet, an air intake pipeline, an air filter and an air intake converter. The air filter is connected to the exhaust pipeline through the air intake converter. The air inlet is connected to the air intake pipeline. The air intake system is an ultra-high efficiency oil-free screw blower. The rod blower provides the required gas for operation; the oil pressure maintaining system includes a minimum pressure valve, an oil filter seat, an oil pump, and an oil tank. The oil pump is connected to the oil tank, the minimum pressure valve is connected to the oil filter seat, and the oil pump is connected to the oil filter seat through the minimum pressure valve; the cooling system includes a fan and a cooler, and the fan provides airflow power for the discharge of gas cooled by the cooler; the exhaust silencing system includes a muffler and a pressure sensor, and the pressure sensor is arranged on the muffler. The pressure sensor is used to detect the exhaust pressure. The exhaust silencing system is arranged at the exhaust port, and the direction from the air inlet to the fan is the gas flow direction.

[0007] The utility model further provides that the shock absorbing system is provided with an oil-free screw blower mainframe, a center bracket, a coupling and a motor.

[0008] Furthermore, in the utility model, a temperature sensor is installed on the main engine of the oil-free screw blower.

[0009] Furthermore, the utility model discloses that the main engine and the motor of the ultra-high efficiency oil-free screw blower are respectively connected to the coupling via a central bracket.

[0010] Furthermore, in the utility model, the motor is electrically connected to a control system.

[0011] The utility model further provides that the control system includes a programmable logic controller, a terminal block, a frequency converter, a pressure sensor, and a temperature sensor. The programmable logic controller is electrically connected to the motor through the frequency converter, and the pressure sensor and the temperature sensor are electrically connected to the programmable logic controller through interface terminals, respectively.

[0012] Furthermore, in the utility model, six shock absorbers are provided.

[0013] Due to the adoption of the above structure, the utility model has the following beneficial effects:

[0014] The utility model adopts a super-efficient oil-free screw blower main unit: the super-efficient oil-free screw blower main unit and the motor are connected as a whole through a center bracket and a coupling. The main accessories such as temperature sensors, air intake converters, etc. are installed on the super-efficient oil-free screw blower main unit. The structure is reasonable and compact. The super-efficient oil-free screw blower main unit, motor, center bracket and coupling frame are installed on the shock absorption system, which is convenient for installation and improves the rationality and firmness of the installation. In addition, a programmable logic controller and a frequency converter are added for the frequency conversion control of the motor, so that the running speed of the motor can be adjusted according to different working conditions, which can improve the working efficiency of the super-efficient oil-free screw blower and save energy.

[0015] At the same time, a minimum pressure valve, oil filter seat, oil pump and oil tank are added to form an oil pressure maintaining system. During the operation of the screw blower, the oil pressure is increased by the oil pump, and the minimum pressure valve ensures that the oil pressure is discharged back to the oil tank when it is greater than the set pressure, thereby ensuring that the oil pressure is within the design allowable range.

[0016] The present invention will become more clear through the following description in conjunction with the accompanying drawings, which are used to explain the embodiments of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0018] Figure 1 It is a schematic top view of the overall structure of the utility model;

[0019] Figure 2 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 3 It is a left side schematic diagram of the overall structure of the utility model.

[0021] Among them, fan 1; head support 2; oil filter seat 3; intake converter 4; minimum pressure valve 5; center bracket 6; frequency converter 7; air inlet 8; intake pipe 9; motor 10; muffler 11; pressure sensor 12; terminal block 13; air filter 14; oil-free screw blower main unit 15; cooler 16; oil pump 17; oil tank 18; shock absorber 19; coupling 20; temperature sensor 21; programmable logic controller 22. DETAILED DESCRIPTION

[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, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] Please refer to Figures 1 to 3 The ultra-high efficiency oil-free screw blower provided by the utility model includes a chassis, and the chassis includes a shock absorbing system, an air intake system, an oil pressure maintaining system, a cooling system, an exhaust silencing system, and a control system. The shock absorbing system is used to reduce the vibration of the chassis caused by the unit when it is working; the air intake system is used to filter and compress the air to ensure that the unit starts without load, runs smoothly, and then automatically vents during loading, unloading and shutdown; the oil pressure maintaining system is used to lubricate the unit and take away the heat of the unit main engine, and monitor the oil pressure in real time to ensure that the oil pressure is within the set working range; the cooling system is used to cool the high-pressure air of the unit; the exhaust silencing system is used to eliminate the noise generated when the unit inhales the air, and monitor the exhaust pressure in real time; the control system is used to electrically connect with each working system to control the operation of each system and adjust each system, so that the running speed of the motor can be adjusted according to different working conditions, which can improve the working efficiency of the ultra-high efficiency oil-free screw blower and save energy consumption.

[0024] Among them, the shock absorption system includes a plurality of shock absorbers 19, and the shock absorbers 19 and the head support 2 are arranged linearly; the air intake system includes an air intake port 8, an air intake pipe 9, an air filter 14, and an air intake converter 4. The air filter 14 is connected to the air intake pipe 9 through the air intake converter 4, and the air intake port 8 is connected to the air intake pipe 9. The air intake system provides the required gas for the operation of the ultra-high efficiency oil-free screw blower and monitors the exhaust pressure in real time; the oil pressure maintenance system includes a minimum pressure valve 5, an oil filter seat 3, an oil pump 17, and an oil tank 18. The oil pump 17 is connected to the oil tank 18, the minimum pressure valve 5 is connected to the oil filter seat 3, and the oil pump 17 is connected to the oil filter seat 3 through the minimum pressure valve 5; the cooling system includes a fan 1, a cooler 16, a fan Fan 1 provides airflow power for the exhaust of the gas cooled by cooler 16; the exhaust silencing system includes a muffler 11 and a pressure sensor 12. The pressure sensor 12 is arranged on the muffler 11. The pressure sensor 12 is used to detect the exhaust pressure. The exhaust silencing system is arranged at the air inlet 8. The gas enters from the air inlet 8, passes through the muffler 11 and the pressure sensor 12 on the air inlet 8, enters the air inlet pipe 9, and then enters the air filter 14 through the air inlet pipe 9. After being filtered by the air filter 14, the gas is controlled by the air inlet converter 4 to be sucked into the ultra-high-efficiency oil-free screw blower main unit 15 for compression and exhaust, and then enters the cooler 16. After the gas is cooled, due to the start of fan 1, the gas is discharged to the outside through fan 1. The direction from the air inlet 8 to the fan 1 is the gas flow direction.

[0025] Among them, the ultra-high efficiency oil-free screw blower main unit 15 is connected to the motor 10 through the center bracket 6 and the coupling 20, and the motor 10 is electrically connected to the control system. The control system includes a programmable logic controller 22, a terminal block 13, and a frequency converter 7. The programmable logic controller 22 is electrically connected to the motor 10 through the frequency converter 7. The control system can adjust the operating speed of the motor according to different working conditions, and can improve the working efficiency of the ultra-high efficiency oil-free screw blower.

[0026] In the utility model, six shock absorbers 19 and the head support 2 form a shock absorbing system, and the oil-free screw blower host 15, the center bracket 6, the coupling 20 and the motor 10 are mounted on the shock absorbing system located below. Thus, the motor 10 and the ultra-high-efficiency oil-free screw blower host 15 are suspended in the air, which reduces the vibration of the motor 10 and the ultra-high-efficiency oil-free screw blower host 15 on the chassis when they are working.

[0027] In the utility model, a temperature sensor (21) is installed on the main engine 15 of the ultra-high efficiency oil-free screw blower, and a pressure sensor 12 is installed on the muffler 11. The pressure sensor 12 and the temperature sensor 21 belong to the control system, and the pressure sensor 12 and the temperature sensor 21 are electrically connected to the programmable logic controller 22 through the interface terminals. An air filter 14 and an air intake converter 4 are installed in the chassis to form an air intake system. A minimum pressure valve 5, an oil filter seat 3, an oil pump 17 and an oil tank 18 form an oil pressure maintenance system. The fan 1 and the cooler 16 form a cooling system. The muffler 11 and the pressure sensor 12 form an exhaust muffler system.

[0028] During operation, air is filtered by the air filter 14 and then controlled by the air intake converter 4 to be sucked into the ultra-high-efficiency oil-free screw blower main unit 15 for compression and exhaust. The oil pressure maintenance system lubricates and takes away the heat of the main unit through the oil filter seat 3, oil pump 17 and oil tank 18. The oil pressure is controlled by the minimum pressure valve 5. When the oil pressure reaches the set upper limit, it is released to the oil tank 18 to ensure that the oil pressure is within the set working range. At the same time, the high-pressure gas is compressed by the main unit and then cooled by the cooling system and discharged. The pressure sensor 12 and the temperature sensor 21 belong to the control system, and are both electrically connected to the programmable logic controller 22 through the interface terminal. The pressure sensor 21 detects the exhaust pressure and is electrically connected to the programmable logic controller 22 to achieve constant pressure control. The oil-free screw blower adjusts the motor speed according to the pressure signal feedback, thereby achieving precise control; the temperature sensor 21 is installed on the ultra-high-efficiency oil-free screw blower host 15 to detect the oil temperature, and is electrically connected to the programmable logic controller 22. The current working condition is judged according to the temperature, and the fan 1 is controlled through the interface terminal and the programmable logic controller 22, thereby automatically regulating the operating temperature of the lubricating oil of the machine system.

[0029] In the utility model, an air filter 14 and an air intake converter 4 are installed in the chassis to form an air intake system, which ensures that the unit is automatically vented during no-load startup, stable operation, loading, unloading and shutdown.

[0030] In the utility model, the minimum pressure valve 5, the oil filter seat 3, the oil pump 17 and the oil tank 18 form an oil pressure maintenance system. The fan 1 and the cooler 16 form a cooling system, and the temperature sensor 21 determines the operating temperature of the unit and controls the fan 1 to ensure that the unit can operate at the operating temperature required by the design.

[0031] During the operation of the utility model, the motor 10 drives the ultra-high-efficiency oil-free screw blower host 15 to compress air, the temperature sensor 21 monitors the temperature, and determines the current working condition based on the monitoring data, so that the programmable logic controller 22 can start and stop the fan 1 in real time, and the pressure sensor 12 monitors the pressure and determines the current working condition based on the monitoring data, so that the programmable logic controller 22 can control the speed of the motor 10 through the frequency converter 7, thereby saving energy while ensuring the continuous and efficient operation of the screw blower.

[0032] The above describes the preferred embodiments of the utility model. It should be understood that the utility model is not limited to the above-mentioned specific implementation methods, and the devices and structures that are not described in detail should be understood to be implemented in a common manner in the art; any technician familiar with the art can use the above-disclosed methods and technical contents to make many possible changes and modifications to the technical solutions of the utility model without departing from the scope of the technical solution of the utility model, or modify them into equivalent embodiments of equivalent changes, which does not affect the essential content of the utility model. Therefore, any simple modification, equivalent change and modification made to the above embodiments based on the technical essence of the utility model without departing from the content of the technical solution of the utility model still falls within the scope of protection of the technical solution of the utility model.

Claims

1. A super-efficient oil-free screw blower, characterized in that: The invention comprises a chassis, an oil-free screw blower main engine and a motor. The chassis comprises a shock absorbing system, an air intake system, an oil pressure maintaining system, a cooling system, an exhaust silencing system and a control system. The shock absorbing system comprises a plurality of shock absorbers (19), and each of the shock absorbers (19) and a head support (2) are arranged linearly. The air intake system comprises an air intake port (8), an air intake pipe (9), an air filter (14) and an air intake converter (4). The air filter (14) is connected to the air intake pipe (9) through the air intake converter (4). The air intake port (8) is connected to the air intake pipe (9). The air intake system provides the required gas for the operation of the ultra-high-efficiency oil-free screw blower. The oil pressure maintaining system comprises a minimum pressure valve (5), an oil filter seat (3), an oil pump (17), and an oil tank (18), the oil pump (17) being connected to the oil tank (18), the minimum pressure valve (5) being connected to the oil filter seat (3), the oil pump (17) being connected to the oil filter seat (3) through the minimum pressure valve (5); the cooling system comprising a fan (1) and a cooler (16), the fan (1) providing airflow power for the discharge of gas cooled by the cooler (16); the exhaust silencing system comprising a muffler (11) and a pressure sensor (12), the pressure sensor (12) being arranged on the muffler (11), the pressure sensor (12) being used for detecting the exhaust pressure, the exhaust silencing system being arranged at the air inlet (8), the direction from the air inlet (8) to the fan (1) being the gas flow direction.

2. The ultra-high efficiency oil-free screw blower according to claim 1, characterized in that: The vibration reduction system is provided with an oil-free screw blower main unit (15), a center bracket (6), a coupling (20) and a motor (10).

3. The ultra-high efficiency oil-free screw blower according to claim 2, characterized in that: A temperature sensor (21) is installed on the oil-free screw blower main unit (15).

4. The ultra-high efficiency oil-free screw blower according to claim 3, characterized in that: The oil-free screw blower main unit (15) and the motor (10) are respectively connected to the coupling (20) via a central bracket (6).

5. The ultra-high efficiency oil-free screw blower according to claim 4, characterized in that: The electric motor (10) is electrically connected to a control system.

6. The ultra-high efficiency oil-free screw blower according to claim 5, characterized in that: The control system comprises a programmable logic controller (22), a terminal block (13), a frequency converter (7), a pressure sensor (12), and a temperature sensor (21); the programmable logic controller (22) is electrically connected to the motor (10) via the frequency converter (7); and the pressure sensor (12) and the temperature sensor (21) are electrically connected to the programmable logic controller (22) via interface terminals, respectively.

7. The ultra-high efficiency oil-free screw blower according to claim 6, characterized in that: The number of the shock absorbers (19) is six.

Images