Supercharger backflow adjusting deviceTechnical Field
The utility model relates to the technical field of mechanical equipment, in particular to a device for regulating backflow of a supercharger.
Background
Natural gas is a gaseous fuel, the main component of which is methane, which, after combustion, is capable of effectively driving a natural gas engine and producing kinetic energy. Natural gas produces little particulate matter during combustion, making it an ideal clean fuel and widely used in the engine field.
The booster is a device capable of compressing gas into high-pressure gas and is commonly used in the middle booster treatment link of a natural gas engine gas source of a factory. Because the engine does not work at full load for a long time due to different working conditions, the required air quantity of the engine also varies. However, since the booster equipment is always running, the natural gas is continuously pressurized, and if the redundant natural gas is discharged and ignited, the natural gas is undoubtedly a waste of resources.
Accordingly, there is a need for an improvement that overcomes the shortcomings of the prior art.
Disclosure of utility model
The utility model aims to solve the problems in the prior art and provides a device for regulating the backflow of a supercharger.
The technical scheme of the utility model is as follows:
The utility model provides a device that booster compressor backward flow was adjusted, include the booster compressor admission line that links to each other with the booster compressor air inlet, the booster compressor exhaust duct that links to each other with the booster compressor gas outlet, still include the gas buffer tank, the gas buffer tank entry links to each other with booster compressor exhaust duct through buffering admission line, the gas buffer tank export links to each other with booster compressor admission line through buffering gas outlet pipe, be provided with first control valve on the booster compressor exhaust duct, the connection of buffering admission line is on the booster compressor exhaust duct between booster compressor and first control valve, be provided with the second control valve on the buffering admission line. When the flow does not need to be regulated, the second control valve is closed, the first control valve is opened, and the natural gas pressurized by the supercharger is directly sent out through the exhaust pipeline of the supercharger. When the flow is required to be regulated, the second control valve is opened, the first control valve is regulated, a part of high-pressure gas enters the gas buffer tank through the buffer air inlet pipeline, the buffered gas reenters the supercharging flow, the flow of the discharged gas of the supercharger is regulated according to the required gas quantity of the engine, and the waste of resources is avoided.
As a preferable technical scheme, the air inlet pipeline of the supercharger is provided with an air inlet buffer tank, and the air inlet buffer tank is arranged between the buffer air outlet pipeline and the supercharger. By providing an intake buffer tank, stabilization of the supercharger inlet pressure is ensured, thereby protecting the supercharger from the impact of unstable pressure.
As a preferable technical scheme, an exhaust buffer tank is arranged on the exhaust pipeline of the supercharger, and the exhaust buffer tank is arranged between the supercharger and the buffer air inlet pipeline. The abrupt pressure change caused by direct discharge is prevented, thereby maintaining the relatively stable system pressure.
As a preferable technical scheme, the air inlet buffer tank is provided with a second safety valve. The supercharger is prevented from being damaged by the too high intake pressure of the supercharger.
As a further preferable technical scheme, the supercharger air inlet pipeline is provided with a one-way valve, and the one-way valve is arranged on one side of the buffer air outlet pipeline far away from the supercharger. A one-way valve is provided to prevent reverse flow of natural gas from the gas surge tank to the natural gas inlet.
As a preferable embodiment, the turbocharger exhaust pipe is provided with a flow meter, and the flow meter is provided on a side of the first control valve remote from the turbocharger. When the flow is regulated, the flow change condition can be observed in real time.
As a preferred embodiment, the turbocharger exhaust line is provided with a first relief valve, which is arranged between the turbocharger and the buffer intake line. Through setting up first relief valve, prevent that the too big condition of holding back the bad booster compressor of first control valve closing angle from appearing.
As a preferable technical scheme, the first control valve and the second control valve are ball valves.
The beneficial effects of the utility model are as follows:
The device for regulating the reflux of the supercharger can regulate the reflux flow of the supercharger according to different air requirements of an engine. When the flow is required to be regulated, the second control valve is opened, the first control valve is regulated, so that part of high-pressure gas enters the gas buffer tank through the buffer air inlet pipeline, the buffered gas enters the air inlet buffer tank again to enter the pressurizing process, and backflow pressurizing circulation is formed, so that resource waste is avoided.
Drawings
FIG. 1 is a block diagram showing the whole construction of a recirculation regulator of a supercharger according to the present utility model;
The device comprises a supercharger inlet pipeline 1, a one-way valve, an inlet buffer tank 3, a supercharger 4, an exhaust buffer tank 5, a first safety valve 6, a first control valve 7, a flow meter 8, a flow meter 9, a supercharger exhaust pipeline 10, a second control valve 11, a buffer inlet pipeline 12, a gas buffer tank 13, a buffer outlet pipeline 14 and a second safety valve.
Detailed Description
In order to make the technical means, technical features, objects and technical effects of the present utility model easy to understand, the present utility model will be further described with reference to the specific drawings.
As shown in fig. 1, the device for adjusting the backflow of a supercharger according to the present utility model comprises a supercharger intake pipe 1, a supercharger exhaust pipe 9 and a gas buffer tank 12. The supercharger intake duct 1 and the supercharger exhaust duct 9 are connected to an intake port of the supercharger 4 and an exhaust port of the supercharger 4, respectively. The supercharger air inlet pipeline 1 is sequentially provided with a one-way valve 2 and an air inlet buffer tank 3 along the air flow direction. An exhaust buffer tank 5, a first safety valve 6, a first control valve 7 and a flowmeter 8 are sequentially arranged on an exhaust pipeline 9 of the supercharger along the gas flow direction. The inlet of the gas surge tank 12 is connected to the supercharger exhaust pipe 9 between the first relief valve 6 and the first control valve 7 through a surge inlet pipe 11. The buffer air intake duct 11 is provided with a second control valve 10. The outlet of the gas buffer tank 12 is connected to the supercharger inlet pipe 1 between the check valve 2 and the inlet buffer tank 3 through a buffer outlet pipe 13. The intake buffer tank 3 is provided with a second relief valve 14.
Natural gas enters the intake buffer tank 3 through the supercharger intake pipeline 1 and flows into the supercharger 4, and the supercharger 4 pressurizes the natural gas and discharges the natural gas into the exhaust buffer tank 5. When the flow rate does not need to be regulated, the second control valve 10 is closed, the first control valve 7 is opened, and the natural gas pressurized by the supercharger 4 is directly sent out through the supercharger exhaust pipe 9. When the flow rate needs to be regulated, the second control valve 10 is opened, the first control valve 7 is regulated, a part of high-pressure gas enters the gas buffer tank 12 through the buffer air inlet pipeline 11, the buffered gas enters the air inlet buffer tank 3, and the gas reenters the supercharging flow to form reflux pressurization circulation. The second safety valve 14 is arranged on the air inlet buffer tank 3 to prevent the supercharger 4 from being damaged due to the too high air inlet pressure. Since the pressure of the gas flowing back from the gas buffer tank 12 is greater than the pressure of the inlet of the supercharger intake duct 1, the provision of the check valve 2 can prevent the natural gas from flowing back. Natural gas flow can be observed in real time through the flow meter 8 as the flow is regulated. The arrangement of the first relief valve 6 prevents the occurrence of a breakage of the turbocharger 4 due to an excessive closing angle of the first control valve 7.
The foregoing description is only of the preferred embodiments of the present utility model and is not intended to limit the scope of the present utility model. Equivalent changes and modifications of the utility model are intended to fall within the scope of the present utility model.