WO2018000866A1

WO2018000866A1 - Emergency energy system of air compressor and supply method thereof

Info

Publication number: WO2018000866A1
Application number: PCT/CN2017/078175
Authority: WO
Inventors: 潘俊; 沈琼; 杜义远; 段振涛; 高雯; 姜赛丽; 潘力
Original assignee: 广西玉柴机器股份有限公司
Priority date: 2016-06-29
Filing date: 2017-03-24
Publication date: 2018-01-04
Also published as: CN105927511B; CN105927511A

Abstract

Disclosed is an emergency energy system of an air compressor, comprising an air filter (2), an air compressor (4), a dryer (18) and a vehicle gas tank (19) successively connected via gas delivery pipelines (1), and further comprising a controller (8), a pressure tank (12), a flow sensor (7) connected to the controller (8), a first normally open electromagnetic valve (9), a first normally closed electromagnetic valve (10), a first pressure sensor (20), a second pressure sensor (13) and a second normally closed electromagnetic valve (16). An emergency energy supply method of an air compressor is also disclosed. The system can provide an energy safeguard for the continuous operation of the whole vehicle and can solve the safety risks of the whole vehicle, can monitor the states of the pipelines of the system in real time and rapidly solve the problem of a gas supply system, and can guarantee the demand for compressed air of the whole vehicle.

Description

Air compressor emergency energy system and supply method thereof

Technical field

The present invention relates to an air compressor air supply system, and more particularly to an air compressor emergency energy system and a method of supplying the same.

Background technique

As shown in FIG. 1 , in the prior art air compressor system, when the air compressor fails, the air compressor system stops working, and when the compressed air of the whole vehicle storage tank is insufficient, there is a brake failure and the door cannot be opened or closed. There is a very large safety issue with the entire vehicle. After the air compressor is stopped for a certain period of time, there is high pressure gas in the pipeline between the air compressor and the dryer (about 6 meters in the general model), and the high load is caused by the high pressure of the air compressor.

Therefore, the air compressor emergency energy system needs to solve the technical problems: 1. After the air compressor fails, it can promptly report the alarm and provide emergency energy (compressed air) to the whole vehicle for braking or switching the door and other equipment; 2. Air compression After the machine fails, it can realize the trip home (that is, realize that the vehicle can continue to drive for a certain period of time); 3. The protection measures for the failure of the emergency energy system; 4. The air compressor realizes no-load start.

Summary of the invention

An object of the present invention is to provide an air compressor emergency energy system capable of quickly providing emergency energy to a vehicle in view of the above problems in the prior art.

Another object of the present invention is to provide a supply method using an air compressor emergency energy system.

To achieve the above object, on the one hand: the present invention provides an air compressor emergency energy The source system includes an air filter, an air compressor, a dryer, and a vehicle storage tank sequentially connected through the gas transmission line, and further includes a controller and a pressure tank, and is disposed on the gas transmission line at the gas outlet end of the air compressor An intake line connecting the pressure tank, and a gas line connecting the pressure tank outlet line on the gas supply line of the inlet end of the dryer, connecting the air compressor and the dryer The gas pipeline is provided with a flow sensor, a first normally open electromagnetic valve, a first normally closed electromagnetic valve is arranged on the intake tank of the pressure tank, and a second normally closed electromagnetic valve is arranged on the outlet pipeline of the pressure tank; The vehicle air tank is provided with a first pressure sensor, and the pressure tank is provided with a second pressure sensor; the flow sensor, the first normally open solenoid valve, the first normally closed solenoid valve, The two pressure sensors, the second normally closed solenoid valve, and the first pressure sensor are respectively connected to the controller.

As a further improvement, a check valve is further disposed on the pressure tank intake line, and a pressure regulator is further disposed on the outlet line of the pressure tank.

As a further improvement, a manual valve is provided on the pressure tank outlet line.

As a further improvement, a first exhaust line for exhaust gas is provided on a gas supply line connecting the air compressor and the dryer, and the first exhaust line is connected There is a third normally closed electromagnetic, and the third normally closed electromagnetic valve is connected to the controller.

As a further improvement, a second exhaust line for exhausting is disposed at an exhaust port of the pressure tank, and a fourth normally closed electromagnetic valve is connected to the second exhaust line, A fourth normally closed solenoid valve is coupled to the controller.

Another aspect of the present invention provides a method for supplying emergency energy using an air compressor. The air is sequentially filtered, compressed, and dried through a gas transmission line, and then stored in a vehicle storage tank as compressed air for the entire vehicle. The method includes the following steps:

Real-time monitoring of the air in the gas pipeline and the gas storage tank of the vehicle. When the airflow of the gas pipeline is detected to be higher than the preset value and the air pressure of the gas tank of the vehicle reaches a preset value, the pressure tank is fed through the gas pipeline. Supply compressed air as an emergency energy source;

Real-time monitoring of the pressure of the pressure tank, when detecting that the pressure of the pressure tank reaches a preset value, the gas pipeline stops inflating the pressure tank;

Real-time monitoring of the airflow of the gas pipeline and the air pressure of the vehicle storage tank. When the airflow of the gas pipeline is detected to be lower than the preset value and the air pressure of the vehicle storage tank is lower than a preset value, the pressure tank is provided through the pressure tank. Compressed air is supplied to the vehicle's gas storage tank for use.

As a further improvement, the method further includes the step of discharging the compressed air in the gas pipeline: detecting the working state of the air compressor, and discharging the compressed air in the gas pipeline when detecting that the air compressor stops working .

As a further improvement, the method further comprises the step of discharging excess compressed air in the pressure tank: performing real-time pressure detection on the pressure tank, and discharging excess compressed air in the pressure tank when the air pressure in the pressure tank exceeds a preset value.

Beneficial effect

By adopting the above system and method, after the air compressor fails, the emergency energy system provides energy protection for the vehicle to continue operation, solves the safety hazard of the whole vehicle, and issues a fault alarm to the whole vehicle; the air compressor realizes no load start , reduce energy consumption; the controller monitors the status of each pipeline of the system in real time, can quickly and quickly solve the problems of the gas supply system, and ensure the compressed air demand of the whole vehicle.

DRAWINGS

1 is a schematic structural view of a prior art air compressor system;

2 is a schematic structural view of an air compressor emergency energy system of the present invention.

In the figure: 1, gas pipeline; 2, air filter; 3, wire harness; 4, air compressor; 5, third normally closed solenoid valve; 6, first exhaust pipe; Gas pipeline; 7, flow sensor; 8, controller; 9, first normally open solenoid valve; 10, first normally closed solenoid valve; 11, check valve; 12, pressure tank; 13, second pressure sensor; 14. The fourth normally closed electromagnetic valve; 15, the voltage regulator; 16, the second normally closed electromagnetic valve; 17, the manual valve; 18, the dryer; 19, the whole vehicle gas storage tank; 20, the first pressure sensor; , pressure tank inlet line; 22, pressure tank outlet line.

detailed description

The invention is further described in the following with reference to the accompanying drawings, but without the limitation of the invention, the invention is limited by the scope of the invention.

A specific embodiment of the present invention is as follows: Referring to Figures 1-2, an air compressor emergency energy system includes an air cleaner 2, an air compressor 4, and a dryer that are sequentially connected through a gas transmission line 1. 18 and a vehicle storage tank 19 for supplying compressed air to the whole vehicle, further comprising a controller 8 and a pressure tank 12, and a pressure tank inlet line connecting the pressure tank 12 is disposed on the gas supply line 1 at the outlet end of the air compressor 4 21, a pressure tank outlet line 22 connecting the pressure tank 12 is disposed on the gas supply line 1 at the inlet end of the dryer 18, and a flow sensor is disposed on the gas supply line 1 between the communication air compressor 4 and the dryer 18. 7. The first normally open solenoid valve 9, the first normally closed electromagnetic valve 10 is arranged on the pressure tank inlet line 21, and the second normally closed electromagnetic valve 16 is arranged on the pressure tank outlet line 22; 19 is provided with a first pressure sensor 20, and a second pressure sensor 13 is disposed on the pressure tank 12; a flow sensor 7, a first normally open solenoid valve 9, a first normally closed solenoid valve 10, a second pressure sensor 13, and a The two normally closed solenoid valves 16 and the first pressure sensor 20 are respectively connected to the controller 8. The control signal of the controller 8 is output to each electromagnetic The valve controls the on and off of each pipeline, the automatic control pipeline supplies compressed air to the whole vehicle and stores the spare compressed air, and the controller monitors the state of each pipeline of the system in real time according to the data detected by each sensor, and in an emergency, gives The vehicle issued a fault alarm. The operation state of each pipeline is detected by the first pressure sensor 20, the second pressure sensor 13, and the flow sensor 7, and the detection data is transmitted to the controller 8 through the line speed 3, and the controller 8 converts, analyzes, and processes the detection data. The controller 8 sends a control signal to each valve to control the valve to open or close to supply air to the vehicle storage tank 19.

In the present embodiment, a check valve 11 is further disposed on the pressure tank intake line 21, and a pressure regulator 15 and a manual valve 17 are further disposed on the pressure tank outlet line 22. The check valve 11 is arranged to prevent reverse flow of the compressed air in the pressure tank 12, preventing the compressed air in the pressure tank 12 from flowing back in the event of damage to the first normally closed solenoid valve 10; the regulator 15 can maintain the pressure tank out The pressure value of the compressed air of the gas line 22 is that the pressure tank 12 supplies gas to the vehicle storage tank 19 stably and safely.

In the present embodiment, a first exhaust line 6 for exhausting is provided on the gas supply line 1 between the communication air compressor 4 and the dryer 18, and a third exhaust line is provided on the first exhaust line 6. Normally closed electromagnetic 5, the third normally closed electromagnetic valve 5 is connected to the controller 8 through the wire harness 3, and when the air compressor 4 normally closes the controller 8 to open the control signal for the third normally closed electromagnetic valve 5 in the normally closed state, The third normally closed electromagnetic valve 5 discharges the compressed gas in the pipe section of the air compressor 4 to the dryer 18 to reach a set time (the compressed air of the pipeline can be drained in about 5 seconds), and then closes the third normally closed electromagnetic When the valve 5 and the air compressor 4 are started again, it will be easier to realize the no-load start and ensure the normal start of the air compressor 4.

In this embodiment, a second exhaust line 61 for exhausting is provided at the exhaust port of the pressure tank 12, and a fourth normally closed electromagnetic valve 14 is provided on the second exhaust line 61. The closed solenoid valve 14 is signally connected to the controller 8 via the wire harness 3. When the second pressure sensor 13 detects that the pressure of the pressure tank 12 exceeds a set value, the controller 8 controls the fourth normally closed electromagnetic state in the normally closed state. The valve 14 is opened, and the compressed air in the pressure tank 12 is released into the atmosphere through the second exhaust line 61 until the pressure of the pressure tank 12 meets the set value, and then the controller 8 closes the fourth normally closed electromagnetic valve 14 to maintain the pressure. The pressure of the tank 12 is at a set value to ensure safe use of the pressure tank 12.

A method for supplying an air compressor emergency energy system according to the above, wherein the air is sequentially filtered, compressed, and dried by the gas supply line 1 and then stored in the vehicle gas storage tank 19 as compressed air for the entire vehicle, wherein The method comprises the following steps: real-time monitoring of the air of the gas pipeline 1 and the vehicle gas storage tank 19, when the airflow of the gas pipeline 1 is detected to be higher than a preset value and the air pressure of the vehicle gas storage tank 19 reaches a pre-predetermined value. When the value is set, the pressure tank 12 is supplied with compressed air through the gas supply line 1 as an emergency energy source; the air pressure of the pressure tank 12 is monitored in real time, and when the pressure of the pressure tank 12 reaches a preset value, the gas supply line 1 stops. The pressure tank 12 is inflated; the airflow of the gas pipeline 1 and the air pressure of the vehicle storage tank 19 are monitored in real time, when the airflow of the gas pipeline 1 is detected to be lower than a preset value and the air pressure of the vehicle storage tank 19 is low. At a predetermined value, compressed air is supplied to the vehicle storage tank 19 through the pressure tank 12 for use.

It also includes a step of discharging the compressed air in the gas transmission line 1 to detect the operating state of the air compressor 4, and when it is detected that the air compressor 4 is stopped, the compressed air in the gas supply line 1 is discharged.

Also included is a step of discharging excess compressed air in the pressure tank 12: a pressure real-time detection of the pressure tank 12 is performed, and when the air pressure in the pressure tank 12 exceeds a preset value, excess compressed air in the pressure tank 12 is discharged.

The specific response of the gas supply system in different situations is as follows:

When the air compressor 4 is in normal working state: the air compressor 4 is normally started to pass air through the air cleaner 2, and the filtered air enters the air compressor 4, and the third normally closed solenoid valve 5. The first normally closed solenoid valve 10, the fourth normally closed solenoid valve 14, and the second normally closed solenoid valve 16 are closed, the manual valve 17 is normally open, and the first normally open solenoid valve 9 is compressed air entering the dryer 18 for drying. The treated, cleaned and dried compressed air enters the vehicle storage tank 19; when the first pressure sensor 20 detects that the pressure of the entire vehicle storage tank 19 reaches the set value, the controller 8 issues a control signal to close the first normally open solenoid valve 9 And opening the first normally closed electromagnetic valve 10 to supply compressed air to the pressure tank 12 until the second pressure sensor 13 detects that the pressure of the pressure tank 12 reaches a set value, then closing the first normally closed electromagnetic valve 10 and opening the first The open solenoid valve 9 continues to supply compressed air to the vehicle storage tank 19; when the vehicle storage tank 19 does not require compressed air, the compressed air of the air compressor 4 is discharged to the atmosphere through the internal conduit of the dryer 18 The air compressor 4 is normally closed, and the controller 8 also opens the valve that controls the third normally closed solenoid valve 5, so that the compressed air of the line between the air compressor 4 and the dryer 18 passes through the first exhaust line 6. Discharge into the atmosphere and reach the set time (about 5 seconds) Compressed air line can be emptied), and then close the third normally closed electromagnetic valve 5, the air compressor 4 is started again, will be easier to achieve a no-load starting, to ensure that the air compressor 4 starts normally.

If the pressure of the pressure tank 12 has not reached the set value, the vehicle air tank 19 requires compressed air at this time, and the valve of the first normally closed electromagnetic valve 10 is closed by the controller 8, and the compressed air supply of the pressure tank intake line 21 is closed. The first normally open solenoid valve 9 on the gas supply line 1 is turned on to supply compressed air to the vehicle storage tank 19 until the pressure of the vehicle storage tank 19 reaches the set value. Only when the vehicle storage tank 19 has no compressed air demand, the pressure tank intake line 21 is turned on until the pressure of the pressure tank 12 reaches the set value.

When the second pressure sensor 13 detects that the pressure of the pressure tank 12 exceeds the set value, the controller 8 controls the valve of the fourth normally closed electromagnetic valve 14 to open, and the compressed air in the pressure tank 12 is released through the second exhaust line 61. In the atmosphere, until the pressure of the pressure tank 12 meets the set value, the controller 8 closes the fourth normally closed solenoid valve 14 to maintain the pressure of the pressure tank 12 at a set value.

When the air compressor 4 is in a failure state: the flow sensor 7 detects that the flow rate of the gas supply line 1 is abnormal, the controller 8 determines that the hydraulic air compressor 4 has failed, the controller 8 issues a failure alarm to the entire vehicle, and the controller 8 issues a control signal to make a A normally open solenoid valve 9 is closed; and the detection data of the first pressure sensor 20 and the flow sensor 7 are combined to quickly send corresponding control signals to the third normally closed solenoid valve 5 and the second normally closed solenoid valve 16, and the manual valve 17 In the normally open state, when the first pressure sensor 20 detects that the pressure of the vehicle storage tank 19 is lower than the set value, the controller 8 issues a control signal to open the valve of the second normally closed solenoid valve 16 and compresses the pressure tank 12. The air through the voltage regulator 15 provides stable compressed air for the vehicle gas storage tank 19, and the reaction is rapid, the compressed air demand of the whole vehicle gas storage tank 19 is ensured, the safety risk of the whole vehicle is solved, and the vehicle is realized to go home; When the second pressure sensor 13 detects that the pressure of the pressure tank 12 is near the minimum set value, the controller 8 issues an emergency alarm again.

When the second normally closed solenoid valve 16 fails to be closed, the compressed air in the pressure tank 12 may interfere with the normally working air line, causing the air compressor 4 to malfunction or the like, and the controller 8 will issue a corresponding alarm. The signal can be manually closed at the time to prevent the compressed air in the pressure tank 12 from being controlled and the various faults caused by the air supply, thereby ensuring the normal use of the gas supply system.

The above is only a preferred embodiment of the present invention, and it should be noted that those skilled in the art can make various modifications and improvements without departing from the structure of the present invention. The practicality of the patent.

Claims

An air compressor emergency energy system includes an air filter (2), an air compressor (4), a dryer (18), and a vehicle storage tank (19) that are sequentially connected through a gas transmission line (1). The utility model is characterized in that it further comprises a controller (8) and a pressure tank (12), and a pressure tank connecting the pressure tank (12) is arranged on the gas supply line (1) at the gas outlet end of the air compressor (4). a gas line (21), on the gas supply line (1) at the inlet end of the dryer (18), a pressure tank outlet line (22) communicating with the pressure tank (12) is provided, and the air compression is connected A gas flow sensor (7) and a first normally open electromagnetic valve (9) are disposed on the gas supply line (1) between the machine (4) and the dryer (18), and the pressure tank inlet line (21) a first normally closed electromagnetic valve (10) is disposed on the pressure tank outlet line (22), and a second normally closed electromagnetic valve (16) is disposed on the gas storage tank (19) a first pressure sensor (20) is disposed thereon, and a second pressure sensor (13) is disposed on the pressure tank (12); the flow sensor (7), the first normally open electromagnetic valve (9), First normally closed solenoid valve (10), second pressure sensor (13), second normally closed solenoid valve (16 The first pressure sensor (20) is connected to the controller (8), respectively.
An air compressor emergency energy system according to claim 1, wherein a check valve (11) is further disposed on said pressure tank intake line (21), and said pressure tank is out A regulator (15) is also provided on the gas line (22).
An air compressor emergency energy system according to claim 2, wherein a manual valve (17) is provided on said pressure tank outlet line (22).
An air compressor emergency energy system according to any one of claims 3, wherein a gas supply line between the air compressor (4) and the dryer (18) is connected (1) having a first exhaust line (6) for exhausting, A third normally closed electromagnetic (5) is disposed on the first exhaust line (6), and the third normally closed electromagnetic valve (5) is coupled to the controller (8).
An air compressor emergency energy system according to claim 4, wherein a second exhaust line (61) for exhausting is installed at an exhaust port of the pressure tank (12). The second exhaust pipe (61) is provided with a fourth normally closed electromagnetic valve (14), and the fourth normally closed electromagnetic valve (14) is connected to the controller (8).
An air compressor emergency energy supply method according to claim 1, wherein the air is sequentially filtered, compressed, and dried by the gas transmission line (1), and then stored in the whole vehicle gas storage tank (19) for compression of the entire vehicle. Air, characterized in that the method comprises the following steps:

6.1. Real-time monitoring of the air of the gas pipeline (1) and the vehicle storage tank (19), when the airflow of the gas pipeline (1) is detected to be higher than the preset value and the vehicle storage tank (19) When the air pressure reaches the preset value, compressed air is supplied to the pressure tank (12) through the gas supply line (1) as an emergency energy source;

6.2. Real-time monitoring of the pressure of the pressure tank (12), when the pressure of the pressure tank (12) reaches the preset value, the gas pipeline (1) stops inflating the pressure tank (12);

6.3. Real-time monitoring of the airflow of the gas pipeline (1) and the air pressure of the vehicle storage tank (19), when the airflow of the gas pipeline (1) is detected to be lower than the preset value and the vehicle storage tank (19) When the air pressure is lower than the preset value, compressed air is supplied to the vehicle storage tank (19) through the pressure tank (12) for use.
The air compressor emergency energy supply method according to claim 6, further comprising the step of discharging the compressed air in the gas pipeline (1): detecting the working state of the air compressor (4), When the air compressor (4) is detected to stop During operation, the compressed air in the gas line (1) is discharged.
The air compressor emergency energy supply method according to claim 6, further comprising the step of discharging excess compressed air in the pressure tank (12): performing pressure real-time detection on the pressure tank (12), when the pressure tank When the air pressure in (12) exceeds the preset value, the excess compressed air in the pressure tank (12) is discharged.