CN210623054U - Compressor speed regulation control system and compressor - Google Patents
Compressor speed regulation control system and compressor Download PDFInfo
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- CN210623054U CN210623054U CN201921408007.1U CN201921408007U CN210623054U CN 210623054 U CN210623054 U CN 210623054U CN 201921408007 U CN201921408007 U CN 201921408007U CN 210623054 U CN210623054 U CN 210623054U
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Abstract
The utility model provides a compressor speed governing control system and compressor relates to electromechanical technical field, include: the controller receives a starting signal of a user side, and starts the engine according to the starting signal, and the engine rotates the compressor head; when the rotating speed of the engine reaches a preset speed, the controller controls the air inlet system to be started so that external air enters the compressor head through the air inlet system; the compressor head compresses external gas to obtain compressed gas, and the compressed gas is transmitted to the oil-gas separation system; the oil-gas separation system performs oil-gas separation on the compressed gas to obtain compressed separated gas, a first pressure signal of the compressed separated gas is sent to the controller, the controller converts the first pressure signal into a first voltage signal, and the first voltage signal is output to the engine, so that the engine can regulate the speed according to the first voltage signal. The utility model discloses the speed governing control system subassembly is few, and the mode is simple, and the speed governing is stable.
Description
Technical Field
The utility model belongs to the technical field of the electromechanical technique and specifically relates to a compressor speed governing control system and compressor are related to.
Background
In the application of the compressor, various different forms of speed regulation control systems exist, such as a speed regulation control system controlled by a machine, and the defects are that the structure is complex and the number of pipelines is large. Therefore, pipeline blockage, leakage or valve-induced failure frequently occurs, resulting in the possibility of a failed governor control system, such as: the pipeline blockage causes the one-way piston or disc of the air inlet valve to have no action, so that the speed regulation failure is easily caused; alternatively, the instability of the pressure provided by the compressor is more severe in the case of high-pressure operation. Once the speed governing of speed governing control system is lost efficacy, then lead to the atmospheric pressure that the compressor provided unstable, the atmospheric pressure is too high can the trouble shut down scheduling problem appear, and the atmospheric pressure is low leads to appearing not enough to supply, reduces equipment performance and efficiency moreover.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a compressor speed governing control system and compressor can guarantee that speed governing control system reduces the possibility of speed governing failure, and then provides stable atmospheric pressure.
The utility model provides a pair of compressor speed governing control system, wherein, include: the device comprises a controller, an engine, a compressor head, an air inlet system and an oil-gas separation system; the input end of the controller is connected with the user side; the input end of the engine and the input end of the air inlet system are connected with the output end of the controller; the output end of the oil-gas separation system is connected with the input end of the controller; the output end of the engine and the output end of the air inlet system are connected with the input end of the compressor head; the input end of the oil-gas separation system is connected with the output end of the compressor head; the controller receives a starting signal of the user side and starts the engine according to the starting signal, and the engine rotates the compressor head; when the rotating speed of the engine reaches a preset speed, the controller controls the air inlet system to be started so that outside air enters the compressor head through the air inlet system; the compressor head compresses the external gas to obtain compressed gas, and the compressed gas is transmitted to the oil-gas separation system; the oil-gas separation system is used for carrying out oil-gas separation on compressed gas to obtain compressed separated gas, sending a first pressure signal of the compressed separated gas to the controller, converting the first pressure signal into a first voltage signal by the controller, and outputting the first voltage signal to the engine, so that the engine can carry out speed regulation according to the first voltage signal.
Further, the oil and gas separation system comprises: the oil-gas separator and the first pressure sensor; the input end of the oil-gas separator is connected with the output end of the compressor head, and the oil-gas separator is used for performing oil-gas separation on the compressed gas to obtain compressed separated gas; the first pressure sensor is arranged on the oil-gas separator and used for monitoring the pressure of the compressed separated gas in the oil-gas separator to obtain a first pressure signal and sending the first pressure signal to the controller.
Further, the oil-gas separation system further comprises: a minimum pressure valve and a second pressure sensor;
the minimum pressure valve is positioned on the oil-gas separator, a first input end of the minimum pressure valve is connected with an output end of the oil-gas separator, and the minimum pressure valve is used for executing exhaust operation; the second pressure sensor is arranged on the minimum pressure valve and used for monitoring the pressure of the compressed gas in the inner cavity of the minimum pressure valve to obtain a second pressure signal and sending the second pressure signal to the controller, so that the controller generates a second voltage signal according to the second pressure signal.
Further, the oil and gas separation system comprises: a solenoid valve and an exhaust system; the input end of the electromagnetic valve is connected with the compressor head, the circuit control end of the electromagnetic valve is connected with the output end of the controller, and the output end of the electromagnetic valve is connected with the second input end of the minimum pressure valve; the input end of the exhaust system is connected with the output end of the minimum pressure valve, and the output end of the exhaust system is connected with gas-using equipment; when the pressure of the compressed gas in the inner cavity of the minimum pressure valve does not reach a first preset pressure, the controller controls the electromagnetic valve to be opened according to the second voltage signal, and the electromagnetic valve enables the compressed gas to flow into the inner cavity of the minimum pressure valve from the compressor head through a second input end of the minimum pressure valve after being opened; when the pressure of the compressed gas in the inner cavity of the minimum pressure valve reaches a second preset pressure, the controller controls the electromagnetic valve to be closed according to the second voltage signal; the minimum pressure valve is opened or closed by the pressure difference formed by the pressure of the compressed separated gas in the oil-gas separator and the pressure of the compressed gas in the inner cavity of the minimum pressure valve; after the minimum pressure valve is opened, the compressed separated gas in the oil-gas separator is discharged to the exhaust system through the minimum pressure valve, so that the exhaust system discharges the compressed separated gas to gas-using equipment.
Further, the oil and gas separation system comprises: the input end of the proportional valve is connected with the output end of the oil-gas separator, and the output end of the proportional valve is connected with the engine; and when the pressure of the compressed and separated gas in the oil-gas separator reaches a third preset pressure, the compressed and separated gas in the oil-gas separator pushes the proportional valve to open so as to regulate the speed of the engine through the proportional valve.
Further, the air inlet system comprises a servo motor and an air inlet valve; the input end of the servo motor is connected with the output end of the controller, and the output end of the servo motor is connected with the input end of the air inlet valve; the output end of the air inlet valve is connected with the compressor head; when the rotating speed of the engine reaches a preset speed, the controller controls the servo motor to drive the air inlet valve to open so that outside air enters the compressor head through the air inlet valve.
Further, the engine includes an electronic control unit; the controller converts the first pressure signal into a first voltage signal and outputs the first voltage signal to the engine, so that the engine adjusts the speed according to the first voltage signal and comprises the following steps: the controller converts the first pressure signal into a first voltage signal and outputs the first voltage signal to the electronic control unit so that the electronic control unit can regulate the speed according to the first voltage signal.
Further, the oil-gas separation system further comprises: a temperature sensor; the temperature sensor is connected with the compressor head and used for monitoring the temperature of compressed gas in the compressor head to obtain a temperature signal and sending the temperature signal to the controller, so that the controller controls the compressor speed regulation control system according to the temperature signal; wherein, the controller according to the temperature signal control the compressor speed governing control system includes: the controller receives the temperature signal, and when the temperature signal reaches a preset temperature, the controller closes the engine and the servo motor to stop the compressor speed regulation control system.
Further, the engine comprises one of a diesel engine, a gasoline engine, a servo motor and an oil-gas mixing engine.
The utility model provides a pair of compressor, include: compressor speed governing control system and cylinder.
The utility model provides a pair of compressor speed governing control system and compressor, include: the device comprises a controller, an engine, a compressor head, an air inlet system and an oil-gas separation system; the controller receives a starting signal of a user side, and starts the engine according to the starting signal, and the engine rotates the compressor head; when the rotating speed of the engine reaches a preset speed, the controller controls the air inlet system to be started so that external air enters the compressor head through the air inlet system; the compressor head compresses external gas to obtain compressed gas, and the compressed gas is transmitted to the oil-gas separation system; the oil-gas separation system performs oil-gas separation on the compressed gas to obtain compressed separated gas, a first pressure signal of the compressed separated gas is sent to the controller, the controller converts the first pressure signal into a first voltage signal, and the first voltage signal is output to the engine, so that the engine can regulate the speed according to the first voltage signal. The utility model discloses a controller carries out the speed governing according to oil-gas separation system's first pressure signal control engine, and the speed governing control system subassembly is few, and the mode is simple, and the speed governing is stable.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a speed regulation control system of a compressor according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of the structure of the oil-gas separation system;
FIG. 3 is a schematic diagram of a minimum pressure valve;
fig. 4 is a schematic structural diagram of another compressor speed regulation control system according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of another compressor speed regulation control system according to an embodiment of the present invention;
fig. 6 is a schematic structural diagram of a compressor according to an embodiment of the present invention.
Icon:
100-a controller; 200-an engine; 300-compressor head; 400-an air intake system; 410-a servo motor; 420-an air inlet valve; 500-oil and gas separation system; 510-an oil-gas separator; 520-a first pressure sensor; 530-minimum pressure valve; 540-a second pressure sensor; 600-electromagnetic valve; 700-a proportional valve; 800-an exhaust system; 900-temperature sensor.
Detailed Description
The technical solution of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
At present, various different forms of speed regulation control systems exist in compressor application, for example, a mechanical control system utilizes a gas circuit to control the work of a valve element, but the structure is complex, the number of pipelines is large, the number of fault points is large, and the response speed is low during work, so that the influence of insufficient air pressure on the equipment use performance cannot be avoided, and the existing speed regulation control system still has the possibility of speed regulation failure. For example: the air passage blockage causes the non-action of the one-way piston or the disc of the air inlet valve, thereby causing the failure of speed regulation. The failure of speed regulation easily causes insufficient air pressure, and particularly, the instability of the compression air pressure of the compressor is more serious under the working condition of high air pressure. Once the speed regulation control system fails, the air pressure provided by the compressor is too high or too low, the problem that the diesel engine is more serious such as failure shutdown and the like can occur due to too high air pressure, insufficient supply can occur due to too low air pressure, and the service performance and the efficiency of the equipment are reduced. Based on this, this embodiment provides a compressor speed governing control system and compressor, utilizes the controller to carry out stable speed governing to the engine according to the first pressure signal of oil-gas separation system feedback.
For the convenience of understanding the present embodiment, a compressor speed regulation control system disclosed in the embodiments of the present invention will be described in detail first.
The first embodiment is as follows:
the embodiment of the utility model provides a compressor speed governing control system refers to fig. 1, include: the system comprises a controller 100, an engine 200, a compressor head 300, an air inlet system 400 and an oil-gas separation system 500; wherein, the input end of the controller 100 is connected with the user end; the input end of the engine 200 and the input end of the air intake system 400 are both connected with the output end of the controller 100; the output end of the oil-gas separation system 500 is connected with the input end of the controller 100; the output end of the engine 200 and the output end of the air intake system 400 are both connected with the input end of the compressor head 300; the input end of the oil-gas separation system 500 is connected with the output end of the compressor head 300;
the controller 100 receives a starting signal from a user end, and starts the engine 200 according to the starting signal, and the engine 200 rotates the compressor head 300; when the rotation speed of the engine 200 reaches a preset speed, the controller 100 controls the air intake system 400 to start, so that the external air enters the compressor head 300 through the air intake system 400; the compressor head 300 compresses external air to obtain compressed air, and transmits the compressed air to the oil-gas separation system 500; the oil-gas separation system 500 performs oil-gas separation on the compressed gas to obtain a compressed separated gas, and sends a first pressure signal of the compressed separated gas to the controller 100, and the controller 100 converts the first pressure signal into a first voltage signal and outputs the first voltage signal to the engine 200, so that the engine 200 performs speed regulation according to the first voltage signal.
In the embodiment of the present invention, the controller 100 may implement signal input, signal conversion, signal output, fault feedback, operation calculation, history record and remote control. After the compressor head 300 is rotated by the engine 200, the controller 100 controls the engine 200 to accelerate, and there are two ways to control the engine 200 to accelerate, namely, the controller 100 controls a governor cylinder of the engine 200 to accelerate, and the controller 100 controls an Electronic Control Unit (ECU) of the engine 200 to accelerate. The first pressure signal includes: a voltage or current signal. The controller 100 may generate a first voltage signal according to the first pressure signal fed back by the oil-gas separation system 500, and the first voltage signal may be a voltage signal of 0-10V or a current signal of 4-20 mA. The first pressure signal is changed, so that the first voltage signal is changed, multi-working-condition switching operation can be realized, and further stable speed regulation is realized.
The embodiment of the utility model provides a pair of compressor speed governing control system, include: the system comprises a controller 100, an engine 200, a compressor head 300, an air inlet system 400 and an oil-gas separation system 500; wherein, the controller 100 receives a start signal from a user terminal, and starts the engine 200 according to the start signal, and the engine 200 rotates the compressor head 300; when the rotation speed of the engine 200 reaches a preset speed, the controller 100 controls the air intake system 400 to start, so that the external air enters the compressor head 300 through the air intake system 400; the compressor head 300 compresses external air to obtain compressed air, and transmits the compressed air to the oil-gas separation system 500; the oil-gas separation system 500 performs oil-gas separation on the compressed gas to obtain a compressed separated gas, and sends a first pressure signal of the compressed separated gas to the controller 100, and the controller 100 converts the first pressure signal into a first voltage signal and outputs the first voltage signal to the engine 200, so that the engine 200 performs speed regulation according to the first voltage signal. The utility model discloses controller 100 carries out the speed governing according to oil-gas separation system 500's first pressure signal control engine 200, and the speed governing control system subassembly is few, and the mode is simple, and the speed governing is stable.
Further, referring to fig. 2, the oil-gas separation system 500 includes: an oil separator 510 and a first pressure sensor 520;
the input end of the oil-gas separator 510 is connected with the output end of the compressor head 300, and the oil-gas separator 510 is used for performing oil-gas separation on the compressed gas to obtain compressed separated gas;
the first pressure sensor 520 is disposed on the gas-oil separator 510, and is configured to monitor a pressure of the compressed separated gas in the gas-oil separator 510, obtain a first pressure signal, and send the first pressure signal to the controller 100.
Further, referring to fig. 2, the oil-gas separation system 500 further includes: a minimum pressure valve 530 and a second pressure sensor 540; the minimum pressure valve 530 is provided on the oil separator 510, and referring to fig. 3, the present embodiment provides a structural schematic view of the minimum pressure valve 530. A first input of the minimum pressure valve 530 is connected to an output of the oil separator 510, the minimum pressure valve 530 being used to perform a venting operation; a second pressure sensor 540 is disposed on the minimum pressure valve 530, and the second pressure sensor 540 is configured to monitor a pressure of the compressed gas in the internal cavity of the minimum pressure valve 530, obtain a second pressure signal, and send the second pressure signal to the controller 100, so that the controller 100 generates a second voltage signal according to the second pressure signal.
In the embodiment of the present invention, the controller 100 sets a first preset pressure to the minimum pressure valve 530, and the first preset pressure may refer to a minimum pressure when the gas-using device normally works. Therefore, the first preset pressure of minimum pressure valve 530 can be adjusted according to different work conditions, therefore, the embodiment of the utility model provides a can realize the operation of multiplex condition. It should be noted that the oil-gas separation system 500 also includes other components, which are not related to the speed control and are not specifically described herein.
Further, referring to fig. 4, the compressor speed regulation control system includes: a solenoid valve 600 and an exhaust system 800;
the input end of the electromagnetic valve 600 is connected with the compressor head 300, the circuit control end of the electromagnetic valve 600 is connected with the output end of the controller 100, and the output end of the electromagnetic valve 600 is connected with the second input end of the minimum pressure valve 530; an input of the exhaust system 800 is connected to an output of the minimum pressure valve 530, and an output of the exhaust system 800 is connected to a gas using device.
When the pressure of the compressed gas in the inner cavity of the minimum pressure valve 530 does not reach the first preset pressure, the controller 100 controls the electromagnetic valve 600 to be opened according to the second voltage signal, and after the electromagnetic valve 600 is opened, the compressed gas flows into the inner cavity of the minimum pressure valve 530 from the compressor head 300 through the second input end of the minimum pressure valve 530; when the pressure of the compressed gas in the inner chamber of the minimum pressure valve 530 reaches a second preset pressure, the controller 100 controls the solenoid valve 600 to close according to the second voltage signal.
In the embodiment of the present invention, the first preset pressure and the second preset pressure are different values, for example, the first preset pressure is a pressure corresponding to 20bar air pressure, and the second preset pressure is a pressure corresponding to 21bar air pressure. After the compressor device is powered on, the electromagnetic valve 600 is powered on and opened, the controller 100 controls the engine 200 to rotate the compressor head 300, compressed gas in the compressor head 300 can reach the inner cavity of the minimum pressure valve 530 through the electromagnetic valve 600 via the second input end of the minimum pressure valve 530, if the pressure of the compressed separated gas in the oil-gas separator 510 is less than the pressure of the compressed gas in the inner cavity of the minimum pressure valve 530, the pressure is insufficient to open the valve of the minimum pressure valve 530, that is, the first input end of the minimum pressure valve 530 and the output end of the minimum pressure valve 530 are not opened, and the compressed separated gas in the oil-gas separator 510 cannot be discharged. The second pressure sensor 540 sends a second pressure signal of the minimum pressure valve 530 to the controller 100, when the second pressure signal of the minimum pressure valve 530 reaches a second preset pressure, the controller 100 outputs a second voltage signal to the electromagnetic valve 600, the electromagnetic valve 600 is closed, and the compressed gas in the compressor head 300 cannot flow to the inner cavity of the minimum pressure valve 530; if the second pressure signal of the minimum pressure valve 530 is weakened to be lower than the first preset pressure, the controller 100 controls the solenoid valve 600 to open according to the second pressure signal, and the compressed gas in the compressor head 300 can flow to the inner cavity of the minimum pressure valve 530.
In the embodiment of the present invention, when the valve of the minimum pressure valve 530 is opened, the first input end of the minimum pressure valve 530 and the output end of the minimum pressure valve 530 form a cavity, the cavity is different from the inner cavity of the minimum pressure valve 530, specifically, the cavity is used for transmitting the compressed separation gas, and the inner cavity is used for storing the compressed gas, the compressed gas can be consumed in the opening process of the valve of the minimum pressure valve 530, and the inner cavity of the minimum pressure valve 530 is not communicated with the cavity.
The minimum pressure valve 530 is opened or closed by a pressure difference between the pressure of the compressed separated gas in the gas-oil separator 510 and the pressure of the compressed gas in the cavity of the minimum pressure valve 530; after the minimum pressure valve 530 is opened, the compressed separated gas in the gas-oil separator 510 is discharged to the gas exhaust system 800 through the minimum pressure valve 530, so that the gas exhaust system 800 discharges the compressed separated gas to the gas-using equipment.
In the embodiment of the utility model provides an in, the gas equipment can be the rig. After the exhaust system 800 discharges the compressed and separated gas to the gas-using device, the controller 100 calculates the displacement of the compressed and separated gas by using the displacement motion, and opens the intake valve 420 according to the displacement to adjust the rotation speed and the output torque of the engine 200, thereby reducing the no-load operation of the engine 200, maintaining the smoothness of the load operation, and improving the service life of the engine 200 and the compressor head 300.
The embodiment of the utility model provides a can realize the operation of multiplex condition. The working conditions can include, but are not limited to, drilling equipment and injection equipment such as wells, mining, mountain slope protection and the like, and the conversion can be adjusted according to the pressure and air volume used by the equipment.
Further, referring to fig. 4, the intake system 400 includes a servo motor 410 and an intake valve 420; the input end of the servo motor 410 is connected with the output end of the controller 100, and the output end of the servo motor 410 is connected with the input end of the air inlet valve 420; the output end of the air inlet valve 420 is connected with the compressor head 300;
when the rotation speed of the engine 200 reaches a preset speed, the controller 100 controls the servo motor 410 to drive the air intake valve 420 to open, so that the external air enters the compressor head 300 through the air intake valve 420.
In the embodiment of the present invention, the air intake valve 420 may be an electric air intake valve 420, for example: a disk. The intake valve 420 may be installed on the compressor head 300, and the servo motor 410 may be installed on the intake valve 420. When the pressure of the compressed separated gas in the gas-oil separator 510 decreases, the intake valve 420 is opened; the inlet valve 420 closes when the pressure of the compressed separated gas rises. The servo motor 410 rotates to adjust the opening of the disc, so as to prevent the pipeline from being blocked, leaking or causing the failure of the valve. Especially, the blockage phenomenon caused by icing of the pipeline or caused by impurities is avoided under the severe cold environment, and the stable speed regulation can be further ensured.
Further, referring to fig. 4, the engine 200 includes an electronic control unit; the controller 100 converts the first pressure signal into a first voltage signal and outputs the first voltage signal to the engine 200, so that the engine 200 adjusts the speed according to the first voltage signal includes:
the controller 100 converts the first pressure signal into a first voltage signal, and outputs the first voltage signal to the electronic control unit so that the electronic control unit adjusts the speed according to the first voltage signal.
In the embodiment of the present invention, the controller 100 transmits the first voltage signal to the electronic control unit, and the electronic control unit can adjust the rotation speed of the engine 200, or control the fuel injection amount of the engine 200 to reduce the output power of the engine 200.
Further, referring to fig. 4, the speed control system of the compressor further includes: a temperature sensor 900; the temperature sensor 900 is connected to the compressor head 300, and is configured to monitor a temperature of the compressed gas in the compressor head 300 to obtain a temperature signal, and send the temperature signal to the controller 100, so that the controller 100 controls the compressor speed regulation control system according to the temperature signal; wherein, controller 100 includes according to the speed governing control system of temperature signal control compressor:
the controller 100 receives the temperature signal, and when the temperature signal reaches a preset temperature, the controller 100 closes both the engine 200 and the servo motor 410 to stop the compressor speed control system.
The embodiment of the utility model provides an in, temperature sensor 900 feedback temperature signal to controller 100, controller 100 is exported to servo motor 410 and engine 200 according to the voltage signal or the current signal that temperature signal generated to make servo motor 410 rotate admission valve 420 and accomplish to admit air and adjust and engine 200 rotates compressor aircraft nose 300 and accomplish speed control, when temperature sensor 900 monitors compressed gas's in the compressor aircraft nose 300 temperature and reaches preset temperature, the system shuts down and protects compressor equipment, can prolong the service life of equipment.
Further, the engine 200 includes one of a diesel engine 200, a gasoline engine 200, a servo motor 410, and an air-fuel mixture engine 200.
The utility model discloses controller 100 carries out the speed governing according to oil-gas separation system 500's first pressure signal control engine 200, and the speed governing control system subassembly is few, and the mode is simple, and the speed governing is stable. Meanwhile, the controller 100 controls the servo motor 410 to rotate the air inlet valve 420 to open, so as to avoid the pipeline blockage, leakage or failure caused by the valve. In addition, the air intake valve 420 is electrically actuated to prevent the pipeline from being clogged due to freezing of the pipeline in a severe cold environment.
The embodiment of the utility model provides a speed regulation control system of a compressor, which can avoid the freezing phenomenon of a control gas circuit pipeline in severe cold weather; avoiding increased wear of engine 200 from frequent engine 200 downtime; avoiding excessive increased air consumption by air line piping and valves and wear on the engine 200; the air conditioning range is expanded, the service life of the compressor is prolonged, and the working efficiency of the compressor is improved; in addition, the device can also be used for multiple purposes, so that the economic benefit is directly increased, and the pollution to the environment is reduced.
Example two:
referring to fig. 5, an embodiment of the present invention provides another compressor control system, and the compressor speed control system includes: the input end of the proportional valve 700 is connected with the output end of the oil-gas separator 510, and the output end of the proportional valve 700 is connected with the engine 200; when the pressure of the compressed separated gas in the gas-oil separator 510 reaches the third preset pressure, the compressed separated gas in the gas-oil separator 510 pushes the proportional valve 700 to open, so that the speed of the engine 200 is regulated through the proportional valve 700.
In the embodiment of the present invention, the compressor control system has only one difference from the compressor control system shown in fig. 4 of the first embodiment, in which the controller 100 is mainly used to control the ECU of the engine 200 to adjust the rotation speed, and the compressor control system shown in fig. 5 controls the speed-adjusting cylinder of the engine 200 by using the proportional valve 700 to realize the speed-adjusting control.
The embodiment of the utility model provides a compressor control system operation process as follows: when the drilling machine needs an air source, related personnel turn on a main power supply of the compressor and check the display of the controller 100, if no fault alarm is displayed, the compressor equipment is clicked to start, and the compressor head 300 is rotated when the engine 200 is started; when the controller 100 does not receive the first pressure signal fed back by the first pressure sensor 520, the controller 100 rotates the disc to an initial angle by using the servo motor 410 to close; a small amount of external gas enters the compressor head 300 from the small hole on the disc, and the initial pressure of 5bar is established for 1-2 minutes; after the initial pressure of 5bar is built, the disc is fully opened, the engine 200 runs at full speed, the air pressure gradually rises in the running process of the engine 200, a first pressure signal is fed back to the controller 100 by the first pressure sensor 520 of the monitoring oil-gas separator 510, the first pressure signal is processed by the controller 100, a first voltage signal is output to the engine 200, the engine 200 runs at a reduced speed, and meanwhile, the first voltage signal is output to the servo motor 410 on the air inlet valve 420, so that the servo motor 410 rotates to close the disc after receiving the first voltage signal; when the pressure in the gas-oil separator 510 reaches 24.5bar, the controller 100 controls the servo motor 410 to rotate to close the disc according to the first voltage signal, when the pressure in the gas-oil separator 510 is lower than 23.5bar, the first voltage signal output to the servo motor 410 by the controller 100 is weakened, and the servo motor 410 rotates to adjust the opening of the disc according to the first voltage signal.
The compressed and separated gas in the oil-gas separator 510 pushes the speed-regulating cylinder of the engine 200 through the proportional valve 700, if the air pressure of the compressed and separated gas in the oil-gas separator 510 is larger, the opening angle of the proportional valve 700 is larger, the more the compressed and separated gas pushing the engine 200 through the proportional valve 700 is, and the rotating speed of the engine 200 is reduced; on the contrary, if the pressure of the compressed separated gas in the gas-oil separator 510 is smaller, the opening angle of the proportional valve 700 is smaller, and the compressed separated gas pushing the engine 200 through the proportional valve 700 is smaller, resulting in increasing the rotation speed of the engine 200. For example, when the air pressure of the compressed separated gas in the oil-gas separator 510 gradually rises to 24.5bar, the compressed separated gas in the oil-gas separator 510 pushes the speed regulation cylinder of the engine 200 through the proportional valve 700, and the engine 200 reduces the rotating speed until the loading is stopped in an idle state; as the exhaust process is operated, when the gas pressure of the compressed separated gas in the gas-oil separator 510 is reduced to 23.5bar, the rotation speed of the speed-adjusting cylinder of the engine 200 is increased, and since no gas pressure is output to the speed-adjusting cylinder of the diesel engine 200, the engine 200 is operated at full speed.
Different from the speed regulation control method of fig. 5, when the gas pressure of the compressed separated gas in the oil-gas separator 510 of fig. 4 gradually increases to 24.5bar, the first pressure sensor 520 outputs a first pressure signal to the controller 100, the controller 100 outputs a first voltage signal to the ECU of the engine 200, and the ECU of the engine 200 controls the engine 200 to reduce the rotating speed until the engine stops loading in an idle state according to the first voltage signal; when the gas pressure of the compressed and separated gas in the oil-gas separator 510 drops to 23.5bar, the first pressure sensor 520 transmits a first pressure signal to the controller 100, the controller 100 outputs the first voltage signal to the ECU of the engine 200 to adjust the rotating speed of the engine 200, the lower the gas pressure of the compressed and separated gas in the oil-gas separator 510 is, the higher the rotating speed of the engine 200 is, the ECU adjusts the rotating speed according to the first voltage signal provided by the controller 100, and the engine 200 performs speed regulation control in a cyclic reciprocating manner in the operation process.
The first pressure sensor 520 feeds back a first pressure signal for monitoring the compressed separated gas in the gas-oil separator 510 to the controller 100; the second pressure sensor 540 feeds back a second pressure signal of the compressed gas in the cavity of the minimum pressure valve 530 to the controller 100; the controller 100 controls the rotation speed of the servo motor 410 and the engine 200 according to the first pressure signal to complete the control of the intake air amount and the rotation speed adjustment of the engine 200. When the pressure in the gas-oil separator 510 and the pressure in the cavity of the minimum pressure valve 530 form a pressure difference, the compressed separated gas in the gas-oil separator 510 may push the valve of the minimum pressure valve 530 to open so that the compressed separated gas is discharged to the exhaust system 800, and the pressure of the compressed separated gas in the gas-oil separator 510 decreases.
If the gas consumption of the gas consuming device is increased, the pressure of the compressed separated gas in the oil-gas separator 510 is decreased, the first pressure signal is decreased, the controller 100 generates a first voltage signal according to the first pressure signal to control the air inlet valve 420 to be opened gradually, and the controller 100 controls the rotation speed of the engine 200 to be increased gradually; when the gas consumption amount of the gas using equipment is decreased, the pressure of the compressed separated gas in the gas-oil separator 510 is increased, the first pressure signal is increased, the controller 100 generates the first voltage signal according to the first pressure signal to control the air intake valve 420 to be gradually closed, and the controller 100 controls the rotation speed of the engine 200 to be gradually decreased. At the time of shutdown, the controller 100 controls the servo motor 410 to completely close the intake valve 420, and the engine 200 runs at a low speed until the rotation is stopped.
Example three:
referring to fig. 6, an embodiment of the present invention provides a compressor, in which a compressor speed control system and a cylinder are provided.
The embodiment of the utility model provides an in, the atmospheric pressure and the amount of wind remain stable that compressor speed governing control system can guarantee the compressor output. Therefore, the utility model discloses can guarantee the stability of equipment operation, ensure compressor atmospheric pressure and the uninterrupted normal operating of air volume, effectively improve the working property of compressor.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.
Claims (10)
1. A compressor speed control system, comprising: the device comprises a controller, an engine, a compressor head, an air inlet system and an oil-gas separation system;
the input end of the controller is connected with the user side; the input end of the engine and the input end of the air inlet system are connected with the output end of the controller; the output end of the oil-gas separation system is connected with the input end of the controller; the output end of the engine and the output end of the air inlet system are connected with the input end of the compressor head; the input end of the oil-gas separation system is connected with the output end of the compressor head;
the controller receives a starting signal of the user side and starts the engine according to the starting signal, and the engine rotates the compressor head; when the rotating speed of the engine reaches a preset speed, the controller controls the air inlet system to be started so that outside air enters the compressor head through the air inlet system; the compressor head compresses the external gas to obtain compressed gas, and the compressed gas is transmitted to the oil-gas separation system; the oil-gas separation system is used for carrying out oil-gas separation on compressed gas to obtain compressed separated gas, sending a first pressure signal of the compressed separated gas to the controller, converting the first pressure signal into a first voltage signal by the controller, and outputting the first voltage signal to the engine, so that the engine can carry out speed regulation according to the first voltage signal.
2. The compressor governor control system of claim 1, wherein the oil-gas separation system comprises: the oil-gas separator and the first pressure sensor;
the input end of the oil-gas separator is connected with the output end of the compressor head, and the oil-gas separator is used for performing oil-gas separation on the compressed gas to obtain compressed separated gas;
the first pressure sensor is arranged on the oil-gas separator and used for monitoring the pressure of the compressed separated gas in the oil-gas separator to obtain a first pressure signal and sending the first pressure signal to the controller.
3. The compressor speed control system of claim 2, wherein the oil-gas separation system further comprises: a minimum pressure valve and a second pressure sensor;
the minimum pressure valve is positioned on the oil-gas separator, a first input end of the minimum pressure valve is connected with an output end of the oil-gas separator, and the minimum pressure valve is used for executing exhaust operation; the second pressure sensor is arranged on the minimum pressure valve and used for monitoring the pressure of the compressed gas in the inner cavity of the minimum pressure valve to obtain a second pressure signal and sending the second pressure signal to the controller, so that the controller generates a second voltage signal according to the second pressure signal.
4. A compressor speed control system according to claim 3, comprising: a solenoid valve and an exhaust system;
the input end of the electromagnetic valve is connected with the compressor head, the circuit control end of the electromagnetic valve is connected with the output end of the controller, and the output end of the electromagnetic valve is connected with the second input end of the minimum pressure valve; the input end of the exhaust system is connected with the output end of the minimum pressure valve, and the output end of the exhaust system is connected with gas-using equipment;
when the pressure of the compressed gas in the inner cavity of the minimum pressure valve does not reach a first preset pressure, the controller controls the electromagnetic valve to be opened according to the second voltage signal, and the electromagnetic valve enables the compressed gas to flow into the inner cavity of the minimum pressure valve from the compressor head through a second input end of the minimum pressure valve after being opened; when the pressure of the compressed gas in the inner cavity of the minimum pressure valve reaches a second preset pressure, the controller controls the electromagnetic valve to be closed according to the second voltage signal;
the minimum pressure valve is opened or closed by the pressure difference formed by the pressure of the compressed separated gas in the oil-gas separator and the pressure of the compressed gas in the inner cavity of the minimum pressure valve; after the minimum pressure valve is opened, the compressed separated gas in the oil-gas separator is discharged to the exhaust system through the minimum pressure valve, so that the exhaust system discharges the compressed separated gas to gas-using equipment.
5. The compressor speed control system of claim 2, comprising: the input end of the proportional valve is connected with the output end of the oil-gas separator, and the output end of the proportional valve is connected with the engine;
and when the pressure of the compressed and separated gas in the oil-gas separator reaches a third preset pressure, the compressed and separated gas in the oil-gas separator pushes the proportional valve to open so as to regulate the speed of the engine through the proportional valve.
6. The compressor speed control system of claim 1, wherein the air intake system comprises a servo motor and an air intake valve; the input end of the servo motor is connected with the output end of the controller, and the output end of the servo motor is connected with the input end of the air inlet valve; the output end of the air inlet valve is connected with the compressor head;
when the rotating speed of the engine reaches a preset speed, the controller controls the servo motor to drive the air inlet valve to open so that outside air enters the compressor head through the air inlet valve.
7. The compressor speed control system of claim 1, wherein the engine includes an electronic control unit;
the controller converts the first pressure signal into a first voltage signal and outputs the first voltage signal to the engine, so that the engine adjusts the speed according to the first voltage signal and comprises the following steps:
the controller converts the first pressure signal into a first voltage signal and outputs the first voltage signal to the electronic control unit so that the electronic control unit can regulate the speed according to the first voltage signal.
8. The compressor speed control system of claim 6, further comprising: a temperature sensor;
the temperature sensor is connected with the compressor head and used for monitoring the temperature of compressed gas in the compressor head to obtain a temperature signal and sending the temperature signal to the controller, so that the controller controls the compressor speed regulation control system according to the temperature signal;
wherein, the controller according to the temperature signal control the compressor speed governing control system includes:
the controller receives the temperature signal, and when the temperature signal reaches a preset temperature, the controller closes the engine and the servo motor to stop the compressor speed regulation control system.
9. The compressor speed control system of claim 1, wherein the engine comprises one of a diesel engine, a gasoline engine, a servo motor, and a hybrid air engine.
10. A compressor, comprising: a compressor speed control system according to any one of claims 1 to 9 and a cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921408007.1U CN210623054U (en) | 2019-08-27 | 2019-08-27 | Compressor speed regulation control system and compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921408007.1U CN210623054U (en) | 2019-08-27 | 2019-08-27 | Compressor speed regulation control system and compressor |
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| Publication Number | Publication Date |
|---|---|
| CN210623054U true CN210623054U (en) | 2020-05-26 |
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| CN201921408007.1U Active CN210623054U (en) | 2019-08-27 | 2019-08-27 | Compressor speed regulation control system and compressor |
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| Country | Link |
|---|---|
| CN (1) | CN210623054U (en) |
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2019
- 2019-08-27 CN CN201921408007.1U patent/CN210623054U/en active Active
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