KR20180020431A - Air shutoff device tester - Google Patents

Abstract

The present invention relates to a tester for an air blocking device which can soundly and reliably determine performance of an air blocking device. The tester for an air blocking device comprises: a chamber unit which accommodates an air blocking device having an inlet to receive fluid, a collection port to which the fluid is collected, a supply port to supply the fluid, a flap installed in the collection port and the supply port, a motor to drive the flap to open and close the collection port and the supply port, and a controller to control the motor, and provides the air blocking device with one or more environments among high temperature, low temperature, high humidity, freezing, high pressure, low pressure, negative pressure, and positive pressure environments through a real vehicle simulation means; a load control unit which is connected to the air blocking device through a pipe member to supply or collect the fluid, and applies the negative pressure or the positive pressure to the air blocking device; and an operation control unit to monitor a pressure change by the negative pressure or the positive pressure of the load control unit, and control operation of the real vehicle simulation means of the chamber unit.

Description

{AIR SHUTOFF DEVICE TESTER}

[0001] The present invention relates to an air cutoff device tester, and more particularly, to an air cutoff tester for use in a hydrogen fuel cell vehicle, And more particularly to an air circuit breaker tester for evaluating the operating performance of a device.

In general, an air shutoff device such as an air shutoff valve used in a hydrogen fuel cell vehicle shut down the air flow path on the air electrode side in shutdown of the Suseo fuel cell vehicle to reduce the oxygen concentration to reduce the interfacial formation and improve the durability of the fuel cell. It plays a role.

Such air blocking devices according to the related art are very difficult to apply general valves according to the characteristics of special systems such as a hydrogen fuel cell vehicle.

For example, according to the valve operating environment of the hydrogen fuel cell vehicle, the air shielding device must satisfy the following conditions, and a test for securing the performance corresponding to the above conditions at the designing and manufacturing stage of the air shielding device is required .

In other words, the performance requirements of the air-shutoff device are as follows: first, measures against electrical noise for surrounding high-voltage components; second, whether cold start-up is possible for hot, high-pressure and high-humidity pure water vapor discharged from the fuel cell; To ensure airtight performance against the working fluid entering or exiting the engine, and finally, to satisfy the required torque even after completion of continuous operation up to a certain limit.

For example, since the hydrogen fuel cell vehicle can not use waste heat differently from other internal combustion engine vehicles, it must be driven only by the valve operating force of the air shutoff device. Particularly, the hydrogen fuel cell vehicle can be installed at the inlet or outlet of the fuel cell, and particularly when installed at the outlet end, the inside of the air shutoff device due to the working fluid such as high temperature, high pressure, Freezing occurs around.

For example, as shown in FIG. 1 or FIG. 2, the prior art air cut-off device 10 is used in a fuel cell system that produces electricity by reacting hydrogen and oxygen.

The conventional fuel cell system includes a main fuel cell 3 for generating electricity by reacting hydrogen of the fuel tank 1 and oxygen in the air of the air supplier 5, A first gas-liquid separator 4 for separating water or unreacted hydrogen generated by the reaction of oxygen and hydrogen in the main fuel cell 3, a main gas- A second gas-liquid separator 6 for separating water or unreacted oxygen generated by the reaction of oxygen and hydrogen therein, and a second gas-liquid separator 6 for separating the main fuel cell 3, the first gas-liquid separator 4 and the second gas- And a water storage tank 7 for storing water generated from the water storage tank 7.

According to the conventional fuel cell system, the air shielding device 10 is disposed on the air supply line between the air supplier 5 and the main fuel cell 3, and supplies air to the main fuel cell 3 Or to recover the working fluid containing the recirculated air or hydrogen from the second gas-liquid separator 6 through the recirculation line 8.

To this end, the air shutoff device 10 comprises an inlet 11 connected to the tubular member of the air supply 5, an exhaust 12 for exhausting the air or working fluid of the air shutoff device 10, 8 for recovering air or working fluid recovered from the main fuel cell 3, and a supply port 14 for supplying air to be supplied to the main fuel cell 3. The air shielding apparatus 10 further includes motors 16 and 17 and a controller 15 for driving (rotating) the flap for opening or closing the bore of the recovery port 13 or the supply port 14 And various electric terminals connected to the controller 15.

As described above, in the fuel cell system of the hydrogen fuel cell vehicle, at least one of high temperature, high pressure, high humidity, condensation, and freezing due to the temperature, pressure or humidity of the air or the working fluid during the inflow, 10, the operating performance of the air shielding apparatus 10 can not be guaranteed in the actual vehicle environment only by the operating performance of a typical valve.

Accordingly, the valve opening / closing test apparatus according to the related art can detect only the opening / closing operation of the valve or the valve airtight condition according to general setting pressure and leakage condition under a simple condition (e.g., temperature or watertightness) It is very difficult to grasp the performance of the air shielding apparatus 10 which is exposed to various environments such as a state where the air shielding apparatus 10 is exposed.

In order to test the performance of the air shielding apparatus 10, the air shielding apparatus 10 must also be operated in real time, while imparting a hydrodynamic load and variously implementing high temperature, low temperature, high humidity, As such, a real vehicle simulation environment similar to a hydrogen fuel cell vehicle is required.

However, it is very difficult to replace the air shutoff device 10 easily while implementing the actual vehicle simulation environment. In addition, only the valve opening / closing test apparatus according to the prior art can perform the general valve performance test because there is no equipment or means for monitoring the operation state of the air blocking apparatus for a long time.

Therefore, the performance conditions such as the valve opening / closing control state, opening / closing responsiveness, leakage amount, presence / absence of deformation of the valve opening / closing flap, and damages of the controller inside the air shutoff device for the air shutoff device, There is an urgent need to develop technologies and means that can be monitored within the system.

Korean Patent Publication No. 10-2012-0019764

An object of the present invention is to provide an air-shutoff device that is installed in a detachable manner in an interior of a chamber part, Control of the valve opening and closing of the air shutoff device while controlling the air flow rate, checking of open / close control failure, opening / closing responsiveness, checking of air leakage amount, occurrence of deformation of flap for valve opening / closing, air blocking And the performance condition such as the damage of the controller inside the apparatus can be monitored in real time to provide a reliable and reliable determination of the performance of the air shielding device.

In order to accomplish the above object, the present invention provides an air interrupter tester comprising: an inlet for receiving a fluid; a recovery port for recovering the fluid; a supply port for supplying the fluid; A motor for driving each of the flaps for opening and closing each of the collection port and the supply port, and an air shutoff device having a controller for controlling each of the motors, A chamber portion providing at least one of an environment of high humidity, freezing, high pressure, low pressure, negative pressure, positive pressure environment to the air shielding device; A load controller connected to the air shutoff device through a piping member for supplying or recovering the fluid and applying a negative pressure or a positive pressure to the air shutoff device; And an operation control unit for monitoring the pressure change of the load control unit in accordance with the negative pressure or the positive pressure and controlling the operation of the actual vehicle simulation unit of the chamber unit.

The piping member includes a first pipe serving as a flow path of the fluid discharged from the load control unit so as to apply a positive pressure to an inlet bore of the recovery port of the air shutoff device. A second pipe serving as a flow path of the fluid flowing into the load control unit so as to apply a negative pressure to an outlet bore of the supply port of the air cutoff device; And a flange portion formed around the connection hole and having a plurality of bolt holes, wherein the flange portion and the outlet bore, respectively, And a jig detachably coupled to a rim of the inlet bore.

Wherein the pipe member includes: a corrugated pipe connected to the connection hole of the jig so as to pass through the pipe; And a pipe connector having a connector on the wall of the main body of the chamber part and a connector on the other side of the first pipe or the second pipe, respectively.

Wherein the load control unit includes: a frame having an installation space; An air compressor disposed at one side of the frame and penetratingly connected to the first pipe and forming a positive pressure corresponding to a control signal of the positive pressure controller; And a vacuum pump disposed on the other side of the frame and connected to the second pipe to form a negative pressure corresponding to a control signal of the negative pressure controller.

Wherein the chamber portion has an internal space for accommodating an air shutoff device provided with a negative pressure or positive pressure environment by the air compressor or the vacuum pump of the load control portion and having an open top for replacement of the air shutoff device main body; A pedestal installed at the bottom of the main body for seating the air shutoff device; And a cover detachably coupled to the open upper portion of the main body.

The actual vehicle simulation means includes a heating device coupled to the body of the chamber portion and making the internal space of the body into a high temperature environment; A cooling device coupled to the main body, the cooling device making the internal space a low temperature or freezing environment; A hydrogen supply device for supplying hydrogen in a hydrogen storage tank provided outside the main body to the internal space so as to contain hydrogen in the fluid in the internal space; A humidifier coupled to the main body and making the internal space humid; A blower coupled to the body, the blower making the interior space a high pressure or low pressure environment; And an exhaust valve coupled to the cover and discharging the fluid in the internal space to the outside.

Wherein the operation control unit includes a communication module provided in the chamber for communicating with a controller for controlling the motor of the air shutoff device, a positive pressure controller for the air compressor, a negative pressure controller for the vacuum pump, Respectively.

Wherein the operation control unit receives information relating to the operation control of the air shutoff device and the actual vehicle simulation device from the communication module of the chamber part and also receives the pressure application state value of the air compressor and the vacuum pump from the load side monitoring computer device Lt; RTI ID = 0.0 > monitoring < / RTI > controller.

The air shielding tester according to the present invention can easily and repeatedly perform the performance test on the air shielding device in the development stage of the air shielding device and can store and evaluate it as real time monitoring or data, There is an advantage that performance evaluation can be performed effectively.

The air shielding tester according to the present invention provides a chamber portion having a cover and a body that can be opened and closed and is capable of controlling the internal environment of the chamber portion in a similar environment such as a high temperature, Freezing, high pressure, low pressure, negative pressure, positive pressure environment), it is possible to perform the performance evaluation of a more precise air shutoff device.

The air shielding tester according to the present invention simulates the operating environment of the air shielding device actually mounted on the hydrogen fuel cell vehicle instead of merely checking the driving of the valve of the air shielding device, (For example, a gas in which a hydrogen component is contained in the air) to the air shutoff device inside the chamber part or to recover the air from the air shutoff device inside the chamber part, ) Or a hydrodynamic load such as a positive pressure is applied to the air cutoff device inside the chamber part, it is possible to monitor the operation state and performance of the device.

1 is a block diagram illustrating a fuel cell system equipped with a general hydrogen fuel cell vehicle air shutoff device.
2 is a front view for explaining a configuration of the air shielding apparatus shown in Fig.
3 is a block diagram of an apparatus for testing an air interrupter according to an embodiment of the present invention.
4 is a sectional view for explaining the chamber portion shown in Fig. 3;
5 is a sectional view for explaining the load control unit shown in Fig.
6 is a sectional view for explaining the operation control unit shown in Fig. 3;

BRIEF DESCRIPTION OF THE DRAWINGS The advantages and features of the present invention and the manner of achieving them will become apparent with reference to the embodiments described in detail below with reference to the accompanying drawings. The present invention may, however, be embodied in many different forms and should not be construed as being limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. And is provided to fully illustrate the scope of the invention to those skilled in the art, and the invention is defined by the claims.

It is to be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. In the present specification, the singular form includes plural forms unless otherwise specified in the specification. &Quot; comprises " and / or "comprising" when used in this specification is taken to specify the presence or absence of one or more other components, steps, operations and / Or add-ons. Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

FIG. 3 is a block diagram of an apparatus for testing an air interrupter according to an embodiment of the present invention, and FIG. 4 is a cross-sectional view illustrating the chamber unit shown in FIG.

3 and 4, the air shielding device 10 is an object to be tested in this embodiment. 1 or 2, the air shielding unit 10 includes an inlet 11 for receiving air or a fluid corresponding to a working fluid used in the hydrogen fuel cell vehicle, a recovery port for recovering the fluid, (13), a supply port (14) for supplying the fluid, flaps (18, 19) (flap) provided inside the recovery port (13) and the supply port (14) (16, 17) for driving the flaps (18, 19) respectively (for example, rotating within a finite opening and closing angle range) for opening and closing the supply port (14) And a controller 15 for controlling each of them.

The air interrupter tester according to this embodiment, which monitors the durability, soundness or reliability of the test object in real time while replacing the test object manufactured with the prototype in the designing and manufacturing stages of the air interrupter 10, (Physical or electrical circuitry), a load control unit 200, and an operation control unit 300. The control unit 300 includes a control unit (not shown)

The chamber part 100 accommodates the air shutoff device 10 to be tested and is capable of receiving at least one of the high temperature, low temperature, high humidity, freezing, high pressure, low pressure, negative pressure, positive pressure environment by the actual vehicle simulating means To the air cutoff device (20).

The load control unit 200 controls the flow of air through the piping member 400 for supplying or recovering the fluid during operation of the air shutoff apparatus 10 (for example, rotating the flap for valve opening and closing) And applies a negative pressure (S) or a positive pressure (P) to the air cutoff device (10).

The operation control unit 300 monitors the pressure change in accordance with the negative pressure S or the positive pressure P of the load control unit 200 and records the monitored information and analyzes the stored information, It controls the role of control.

The present embodiment including the above chamber unit 100, the load control unit 200 and the operation control unit 300 is manufactured as a kind of durability tester taking into consideration the actual vehicle mounting conditions of the air shielding apparatus 10. [ The present embodiment is also applicable to a fuel cell vehicle which repeatedly performs various durability tests while simulating the flow of a fluid which flows into the main fuel cell or functions as the engine of the hydrogen fuel cell vehicle, Can be performed.

The load control unit 200 includes an air compressor 210, a positive pressure controller 211 for the air compressor 210, a vacuum pump 220 and a negative pressure controller 221 for the vacuum pump 220 as a kind of air flow rate controller . The load controller 200 is connected to both the positive pressure controller 211 and the negative pressure controller 221 to control the flow rate of the positive pressure controller 211 and the negative pressure controller 221 and to monitor the pressure fluctuation situation, And a load side monitoring computer unit 230 for transmitting or inputting various kinds of information produced by the load control unit 200 to the operation control unit 300 according to information and pressure fluctuation conditions.

The load control unit 200 may be connected to the chamber unit 100 through a pipe member 400.

The operation control unit 300 controls the actual vehicle simulation means required for the actual vehicle simulation environment of the chamber unit 100 or analyzes the detection signal input from the sensor unit associated with the actual vehicle simulation means to calculate the actual vehicle simulation environment state of the chamber unit 100 It is configured to monitor.

Referring to FIG. 4, the pipe member 400 includes a first pipe 410, a second pipe 420, a jig 430, a corrugated pipe 440, and a pipe connection part 450.

The first piping 410 refers to a piping member such as a hose, a pipe, a tube, a fluid flow line, a piping connection member, etc., and is connected to an inlet bore of the recovery port 13 of the air shut- And may be a flow path of the fluid discharged from the load controller 200 so as to apply the positive pressure P.

The second piping 420 refers to a piping member having the same shape as the first piping 410 and has a negative pressure S at the outlet bore of the supply port 14 of the air shutoff device 10 The flow path of the fluid flowing into the load control unit 200 may be a flow path.

The jig 430 includes a plurality of connection holes 431 and 432 which are respectively connected to the inlet bores of the recovery port 13 of the air shutoff device 10 and the outlet bores of the supply port 14, And a flange portion 433 formed around the holes 431 and 432 and having a plurality of bolt holes. Particularly, the flange portion 433 has a planar shape that can be shaped and structurally matched to the portion around the recovery port 13 and the supply port 14 of the air shutoff device 10, And a bolt hole at the same number and position as the fastening hole of the rim around the supply port 14. [ Therefore, the tester can use a fastening bolt (not shown) to air tightly secure the jig 430 to the air shielding apparatus 10 side, or to unfasten the fastening bolt to separate the jig 430 from the air shielding apparatus 10 .

That is, the jig 430 can be detachably coupled to the rim of the exit bore and the inlet bore through the flange 433 of the jig 430.

The combined jig 430 serves to form a positive pressure in the inlet bore of the recovery port 13 of the air shutoff device 10 and to form a negative pressure in the outlet bore of the supply port 14 do. Because of this jig 430, the present embodiment can easily separate the air shield 10 from the chamber 100 after the experiment, or the other air shield can be easily replaced in the inner space of the chamber 100 You can do it.

The corrugated pipes 441 and 442 may be connected to the connection holes 431 and 432 of the jig 430 through a plurality of (for example, two) corrugated pipes 441 and 442, respectively. The jig 430 can be imparted with a degree of freedom and the user or the tester can easily bring the jig 430 close to or away from the air shield 10.

The pipe connection portion 450 includes a connector 451 connected to the corrugated pipes 441 and 442 and a connector body 452 provided on the wall of the main body 110 of the chamber portion 100, And a second connector 453 connected to the first pipe 410 or the second pipe 420, respectively. Here, the one-side connector 451 or the other-side connector 453 may refer to a quick connector for connecting pipes, a pipe connecting means using a band and a nipple, and the like. The inner space of the connector body 452 is formed to penetrate the inner space of the one side connector 451 or the other side connector 453 and the outside of the connector body 452 is airtightly inserted into the through hole of the wall of the main body 110 Welded, or installed through a wall penetration with a sleeve or a sealing member.

The chamber portion 100 may be a sealed temperature and humidity chamber capable of simulating a vehicle environment (e.g., steam occurring in a stack that is the main fuel cell).

In more detail, the chamber part 100 includes a plurality of sensor parts 130. The sensor unit 130 generates various detection signals for monitoring the environmental conditions of the actual vehicle model with respect to the chamber unit 100 and inputs various detection signals to the operation control unit 300 described above with reference to FIG. . The sensor unit 130 may be a digital thermometer, a digital hygrometer, a digital pressure gauge, or a hydrogen concentration sensor. The sensor unit 130 may be mounted on the cover 120 of the chamber unit 100 as shown in FIG. 4 and may be electrically connected to the operation control unit 300 described above. Since the sensor unit 130 is not necessarily located only on the cover 120 but may be installed in a position other than the cover 120 such as the wall of the main body 110 of the chamber unit 100, The mounting position may not be limited to the cover 120 only.

The chamber part 100 may further include an exhaust valve 140 of an electronic modification type. The exhaust valve 140 is configured such that the valve opening / closing amount or the opening / closing amount is controlled by the operation control unit 300, and the valve opening is performed to lower the internal pressure of the chamber unit 100, Can be performed. For example, the exhaust valve 140 can be coupled to the cover 120 and can discharge the fluid in the internal space of the main body 110 of the chamber part 100 to the outside.

The chamber 110 of the main body 110 is a component included in the chamber 100. The main body 110 is provided with an internal space for accommodating the air shielding apparatus 10 having a negative pressure or negative pressure environment formed by the air compressor 210 or the vacuum pump 220 of the load control unit 200 shown in FIG. . The body 110 has an open top for replacement of the air shield 10.

The chamber part 100 is installed at the bottom of the main body 110 inside the main body 110 and includes a pedestal 150 for seating the air shielding device 10. The chamber part 100 includes a cover 120 detachably coupled to the open top of the body 110.

The cover 120 is provided with a plurality of fixing holes formed in the rim of the cover 120 and cover fixing bolts respectively fastened to the fixing holes so that the cover 120 can be engaged and bolted to the body 110. Since the fixing hole and the fixing bolt of the cover 120 are for attaching and detaching the cover 120 and the main body 110, they may be replaced with a clamp for opening or closing the cover 120 or a general locking device.

A sealing member 122 may be further provided at a portion 121 where the cover 120 and the main body 110 abut against each other (for example, a fixing hole forming edge portion), and a sealing member 122 may be provided on the main body 110 Pressure maintenance or airtightness of the internal space may be possible.

The actual vehicle modeling means of the chamber part 100 includes a heating device 161 coupled to the main body 110 of the chamber part 100 and making the internal space of the main body 110 a hot environment. The actual vehicle simulating means also includes a cooling device 162 coupled to the body 110 and rendering the interior space a cold or icing environment.

The actual vehicle simulation unit may further include a hydrogen supply unit 163 for supplying hydrogen in a hydrogen storage tank provided outside the main body 110 to the internal space in order to contain hydrogen in the fluid in the internal space of the main body 110, . Here, the hydrogen supply device 163 collectively refers to a hydrogen storage tank, a tank support, a pipe for coupling the main body 110, and an electronic valve.

The actual vehicle simulating means includes a humidifier 164 coupled to the main body 110 and adapted to make the internal space humid environment, a blower (not shown) coupled to the main body 110 and adapted to convert the internal space into a high- 165 (blower). Here, the blower 165 collectively refers to a blower fan, a pedestal, a pipe for coupling the main body 110, and a shutter device.

The actual vehicle simulation means such as the heating device 161, the cooling device 162, the hydrogen supply device 163, the humidifier 164, the blower 165, and the exhaust valve 140 are provided with a drive circuit And is connected to the operation control unit 300 through a communication module 166 having a bus line. Therefore, the actual vehicle modeling means can be controlled by the PID (Proportional, Integral, Differential) control signal of the drive controller of the operation control unit 300, and the operation state of each actual vehicle modeling means can be controlled by the operation control unit 300, Lt; / RTI >

5 is a cross-sectional view for explaining the load control unit shown in FIG.

5, the load control unit 200 includes a frame 201 having an installation space, a frame 201 disposed on one side of the frame 201, penetrating the first pipe 410, and a positive pressure controller 211 And a positive pressure corresponding to the control signal of the air compressor 210. [ Herein, the air compressor 210 serves to form a positive pressure P (for example, 210 kPa) into the inlet bore of the recovery port 13 of the air shutoff device 10.

The load controller 200 is disposed on the other side of the frame 201 and connected to the second pipe 420 through a vacuum pump 220). The vacuum pump 220 serves to form a negative pressure S (for example, a sound pressure of 80 kPa) entering the outlet bore of the supply port 14 of the air shutoff device 10.

The load side monitoring computer device 230 is connected to the negative pressure controller 221 and the positive pressure controller 211. The load side monitoring computer device 230 applies a target CAN (Controller Area Network) signal set to the operation control unit 300 through the negative pressure controller 221 and the positive pressure controller 211, A control algorithm capable of driving the vacuum pump 210 and the vacuum pump 220, and can implement a real-time monitoring function. For example, the control algorithm and the real-time monitoring function can implement a real-time evaluation mode (e.g., an alarm function for an abnormal phenomenon such as response time, delay time, overshoot / undershoot occurrence in real time).

The chamber 100, the load controller 200, and the operation controller 300 shown in FIG. 3 enter the main fuel cell through the air shutoff device 10 and the flow of air discharged from the main fuel cell is simulated , So that a test environment can be established that can determine the impact that the airblock device 10 can receive. Further, the operation of the air shielding apparatus 10 is controlled by the operation control unit 300 shown in Fig. 6, and the operation according to the control is monitored. Therefore, the failure alarm mode through the current value check inside the controller 15 of the air shielding apparatus 10 and the leak evaluation corresponding to the predetermined reference value can be controlled by the operation control unit 300.

6 is a cross-sectional view for explaining the operation control unit shown in FIG.

6, the operation control unit 300 includes the controller 15 for controlling the flap opening / closing motors 16 and 17 of the air shutoff device 10 described in detail above, the positive pressure switch for the air compressor 210 And is connected to the communication module 166 installed in the chamber part 100 for communication with the controller 211, the negative pressure controller 221 for the vacuum pump 220, and the actual vehicle simulation device.

For example, the operation control unit 300 records and stores a predetermined series of analysis methods corresponding to the real-time evaluation mode and the failure alarm mode, and includes an air interception monitoring controller 310 for controlling the operation of the air interrupting apparatus, 320, a computer 330, a power supply 440, and a monitor device 350 having a display and a plurality of buttons.

In the display of the monitor device 350, the leakage amount change graph information or the numerical value may be displayed corresponding to the occurrence of the flat warping phenomenon.

The air cutoff monitoring controller 310 receives information related to the operation control of the air cutoff device and various kinds of actual vehicle simulation means from the communication module of the chamber unit 100 and also receives the pressure application state value from the air compressor and the vacuum pump, Side monitoring computer device of the present invention.

The air shutoff monitoring controller 310 monitors the difference in the leakage amount of the inlet bore of the recovery port or the outlet bore of the supply port in accordance with the test time when the positive pressure or the negative pressure is formed and monitors whether the flap is bent .

The data analyzer 320 records and stores various kinds of detection signals input from the sensor unit (e.g., temperature, pressure, humidity, and hydrogen concentration) of the chamber unit for monitoring.

That is, the air shutoff device is a kind of valve, in which the flaps are integrally formed inside each of the inlet bores and the outlet bores. In this case, as the air flow direction differs according to the positive pressure or the negative pressure, Can vary.

Therefore, the air-break monitoring controller 310 compares the operating state value input from the positive pressure controller and the negative pressure controller with a reference value to determine a leakage difference value of the inlet bore and the outlet bore in the full close state of the air- And estimates the failure according to the flap twist.

When the air shutoff monitoring controller 310 performs the control between the full closing and the full opening of the air shutoff device, the closing and opening time of the flap is compared with the predetermined time, Closure and opening are controlled so as to confirm the responsiveness of the air blocking device.

In addition, the air interception monitoring controller 310 confirms whether the closing and opening angle of the flap is controlled within a preset angle in the control between full closing and full opening of the air blocking device, thereby checking whether the air blocking device is in bad control I am responsible.

In addition, the air interception monitoring controller 310 checks whether the current consumption amount generated in the controller inside the air shutoff device is less than the predetermined current amount, and checks whether the air shutoff device according to the overcurrent mode is damaged. do.

The foregoing description is merely illustrative of the technical idea of the present invention and various changes and modifications may be made without departing from the essential characteristics of the present invention. Therefore, the embodiments described in the present invention are not intended to limit the scope of the present invention, but are intended to be illustrative, and the scope of the present invention is not limited by these embodiments. The scope of protection of the present invention should be construed according to the following claims, and all technical ideas which are equivalent or equivalent thereto should be interpreted as being included in the scope of the present invention.

100: chamber part 110:
120: Cover 130: Sensor part
140: exhaust valve 150: pedestal
161: Heating device 162: Cooling device
163: hydrogen supply device 164: humidifier
165: blower 200: load controller
210: air compressor 220: vacuum pump
300: Operation control unit 310: Air cutoff monitoring controller
400: Piping member 410: First piping
420: second piping 430: jig
440: Corrugated pipe 450: Piping connection part

Claims (8)

An inlet for receiving the fluid, a recovery port for recovering the fluid, a supply port for supplying the fluid, a flap installed inside the recovery port and the supply port, respectively, for opening and closing each of the recovery port and the supply port And a controller for controlling each of the motors, wherein the control unit controls the motor to be driven by at least one of high temperature, low temperature, high humidity, freezing, high pressure, low pressure, negative pressure, To the air blocking device;
A load controller connected to the air shutoff device through a piping member for supplying or recovering the fluid and applying a negative pressure or a positive pressure to the air shutoff device; And
And an operation control unit for monitoring the pressure change in accordance with the negative pressure or the positive pressure of the load control unit and controlling the operation of the actual vehicle simulation unit of the chamber unit
In air cutoff tester.
The method according to claim 1,
The piping member
A first pipe serving as a flow path of the fluid discharged from the load control unit to apply a positive pressure to an inlet bore of the collection port of the air shutoff device;
A second pipe serving as a flow path of the fluid flowing into the load control unit so as to apply a negative pressure to an outlet bore of the supply port of the air cutoff device; And
And a flange portion formed around the connection hole and having a plurality of bolt holes, wherein the flange portion is formed with a plurality of through holes, Including a jig detachably coupled to the rim of the inlet bore
In air cutoff tester.
3. The method of claim 2,
The piping member
A corrugated pipe connected to each of the connection holes of the jig; And
Further comprising a pipe connector having one side connector connected to the bellows pipe, a connector body provided on a wall of the main body of the chamber, and a second connector connected to the first pipe or the second pipe, respectively
In air cutoff tester.
3. The method of claim 2,
The load control unit includes:
A frame having an installation space;
An air compressor disposed at one side of the frame and penetratingly connected to the first pipe and forming a positive pressure corresponding to a control signal of the positive pressure controller; And
And a vacuum pump disposed on the other side of the frame and penetrating the second pipe to form a negative pressure corresponding to a control signal of the negative pressure controller
In air cutoff tester.
5. The method of claim 4,
Wherein the chamber portion includes:
A main body having an internal space for receiving an air-shutoff device of a negative pressure or positive pressure environment by the air compressor or the vacuum pump of the load control unit and having an open top for replacement of the air shutoff device;
A pedestal installed at the bottom of the main body for seating the air shutoff device; And
And a cover detachably coupled to the open upper portion of the main body
In air cutoff tester.
6. The method of claim 5,
Wherein the actual-
A heating device coupled to the main body of the chamber part, for making the internal space of the main body a high temperature environment;
A cooling device coupled to the main body, the cooling device making the internal space a low temperature or freezing environment;
A hydrogen supply device for supplying hydrogen in a hydrogen storage tank provided outside the main body to the internal space so as to contain hydrogen in the fluid in the internal space;
A humidifier coupled to the main body and making the internal space humid;
A blower coupled to the body, the blower making the interior space a high pressure or low pressure environment; And
And an exhaust valve coupled to the cover for discharging the fluid in the internal space to the outside
In air cutoff tester.
The method according to claim 6,
Wherein the operation control unit comprises:
A controller for controlling the motor of the air shielding device, a positive pressure controller for the air compressor, a negative pressure controller for the vacuum pump, and a communication module provided in the chamber for communicating with the actual vehicle simulator
In air cutoff tester.
8. The method of claim 7,
Wherein the operation control unit comprises:
Wherein the control unit receives information related to the operation control of the air shutoff device and the actual vehicle simulator from the communication module of the chamber and also receives the pressure applied state value by the air compressor and the vacuum pump from the air shutoff Including monitoring controllers
In air cutoff tester.

Images