KR102034862B1 - Hydrogen explosion pressure demonstrating device - Google Patents

Abstract

The present invention includes: a test structure constructed to provide a test chamber having a sealed space; a test supply pipe extended from the outside of the test structure to the inside of the test chamber, and receiving hydrogen gas; a main test valve installed on the test supply pipe, and determining whether to supply hydrogen gas into the test chamber; a plurality of test pipes branched from a distribution block installed in the test supply pipe, and extended in various directions in the test chamber; a test valve installed on the test pipes, and determining whether to discharge the hydrogen gas through the test pipes; an explosion chamber installed in the test chamber, and providing a sealed space smaller than the test chamber; a branch supply pipe branched from the test supply pipe, and connected to the explosion chamber to supply the hydrogen gas into the explosion chamber; a main branch valve installed on the branch supply pipe, and determining whether to supply the hydrogen gas into the explosion chamber; a circulation part dispersing the hydrogen gas evenly by circuiting air in the explosion chamber when the hydrogen gas is supplied into the explosion chamber; a hydrogen sensor sensing whether the hydrogen gas is evenly dispersed in the explosion chamber through the operation of the circulation part; a flame part inducing hydrogen explosion by providing flames into the explosion chamber; an explosion pressure sensing part sensing a distance in which explosion pressure produced from the explosion of the hydrogen gas in the explosion chamber can be delivered; and a connection supply part connecting a hydrogen jet flame test device installed outside the test structure with the test supply pipe to supply hydrogen gas from the hydrogen jet flame test device to the test supply pipe. Therefore, the present invention is capable of reducing time and costs for conducting a hydrogen explosion test.

Description

Hydrogen explosion test unit {HYDROGEN EXPLOSION PRESSURE DEMONSTRATING DEVICE}

The present invention relates to a hydrogen explosion demonstration test apparatus, and more specifically, to the existing LPG, CNG, the hydrogen fusion charging station to provide a standard model and facility standards for heterogeneous energy charging station that combines a hydrogen station in a gas station To analyze the fire or explosion stability by simulating the environment where gas leakage occurs and accidental explosion by the operator, and calculates the safety distance by measuring the pressure by distance from the point of explosion when hydrogen explosion occurs. The present invention relates to a hydrogen explosion proof test apparatus capable of supplying hydrogen gas to a combustion test wing that performs a hydrogen explosion proof test from an existing outdoor hydrogen jet flame combustion test apparatus.

In general, a vehicle is a device that moves by using energy generated by burning fuel, and fossil fuel is mainly used. Recently, an eco-friendly vehicle using solar heat or hydrogen fuel has been developed and used.

Among such eco-friendly vehicles, vehicles using hydrogen fuel have a risk of explosion when hydrogen or hydrogen used as a fuel cell leaks into the air, and thus, research on diffusion and combustion characteristics of hydrogen fuel is required.

Moreover, when hydrogen or fuel cell vehicles are parked and stopped for a long time in an enclosed space such as an underground parking lot, the leaked hydrogen may collect and explode.

Therefore, in an enclosed space such as an underground parking lot, an experimental model is needed for grasping the diffusivity and combustibility of leaked hydrogen, but the research and development methods for the experimental model or experimental method are still insufficient.

In order to solve the above problems, a hydrogen diffusibility and combustibility experiment apparatus has been developed, and the experimental apparatus according to the prior art is a hydrogen diffusivity and combustibility experiment apparatus for measuring the diffusion and combustibility of hydrogen gas, and is formed through the ventilation holes. And a supply unit for supplying hydrogen gas connected to the chamber and the chamber including at least one ventilation unit sliding and opening and closing to enable the adjustment of the size of the ventilation opening and including a door unit for internal ventilation and forming a closed system around the ventilation port. And a ignition plug installed in the chamber and igniting the supplied hydrogen gas, a temperature sensor and a pressure sensor measuring temperature and pressure in the chamber, and a control unit controlling the supply unit or the ignition plug.

Background art of the present invention is disclosed in Republic of Korea Patent Publication No. 10-1129377 (announced March 22, 2012, the name of the invention: hydrogen diffusivity and combustibility testing apparatus).

Since the test apparatus according to the prior art does not have a separate technical configuration capable of accurately measuring the hydrogen explosion pressure, it is necessary to specify a design guideline or facility standard required for the construction of the hydrogen charging station. There is a problem in that it is difficult to construct a hydrogen charging station that can be prepared.

Therefore, there is a need for improvement.

The present invention is a gas leakage in the hydrogen fusion station to provide a standard model and facility standards for heterogeneous energy stations that combine hydrogen stations with LPG, CNG, gas station, and explosion by accident It is possible to analyze the fire or explosion stability by simulating the environment, and to calculate the safety distance by measuring the width pressure by distance from the point of explosion when hydrogen explosion occurs, and the existing outdoor hydrogen jet flame combustion test It is an object of the present invention to provide a hydrogen explosion proof test apparatus capable of providing hydrogen gas to a combustion test wing for performing a hydrogen explosion proof test from an apparatus.

The present invention, the test structure to be constructed to provide a laboratory forming a closed space; An experimental supply pipe extending from the outside of the test structure to the inside of the laboratory and supplied with hydrogen gas; A main experiment valve installed in the experiment supply pipe and determining whether hydrogen gas is supplied into the laboratory; A plurality of test pipes branched from a distribution block installed in the test supply pipe and extending in various directions in the laboratory; An experimental valve installed in the test pipe and determining whether to discharge hydrogen gas through the test pipe; An explosion chamber installed inside the laboratory and providing a relatively small closed space compared with the laboratory; A branch supply pipe branched from the test supply pipe and connected to the explosion chamber to supply hydrogen gas into the explosion chamber; A main branch valve installed at the branch supply pipe and determining whether hydrogen gas is supplied to the explosion chamber; A circulation unit configured to circulate air in the explosion chamber to evenly distribute hydrogen gas when hydrogen gas is supplied to the explosion chamber; A hydrogen detection sensor for detecting whether hydrogen gas is evenly distributed in the explosion chamber by the circulation unit; A flame unit for inducing hydrogen explosion by providing a flame inside the explosion chamber; An explosion pressure sensing unit for sensing a distance at which the explosion pressure generated by the hydrogen gas is exploded in the explosion chamber is transferred; And a connection supply unit for supplying hydrogen gas from the hydrogen jet flame test device to the test supply pipe by connecting the hydrogen jet flame test device provided outside the test structure and the test supply pipe.

In addition, the circulation unit of the present invention, is provided on one side of the explosion chamber, the first circulation fan for circulating the hydrogen gas supplied into the explosion chamber; And a second circulation fan installed at the other side of the explosion chamber and circulating hydrogen gas supplied into the explosion chamber.

In addition, the hydrogen detection sensor of the present invention, the first sensor is installed on the explosion chamber, the first sensor for sensing the content of the hydrogen gas contained in the explosion chamber; And a second sensor installed under the explosion chamber and sensing a content of hydrogen gas included in the explosion chamber.

In addition, the pressure-sensitive detection unit of the present invention, a plurality of supports are installed step by step distance from the explosion chamber to the outside of the laboratory step by step; And a vibrating panel installed on the support so as to be vibrated by the explosion pressure transmitted from the explosion chamber.

In addition, the connection supply unit of the present invention, extending from the hydrogen jet flame test apparatus, is inserted into the test structure, the connection pipe connected to the experimental supply pipe; And a main supply valve installed at the connection pipe, the main supply valve being installed to be opened and closed at the connection pipe to determine whether hydrogen gas is supplied into the test structure.

Hydrogen explosion pressure test apparatus according to the present invention is provided with a hydrogen jet flame test apparatus provided in the field test site, and a connection supply for connecting the hydrogen explosion test apparatus installed in the combustion test building is supplied from the hydrogen jet flame test apparatus The hydrogen gas can be easily supplied into the explosion chamber installed inside the combustion test building, thereby reducing the time and cost required to perform the hydrogen explosion test performed inside the combustion test building.

In addition, since the hydrogen explosion pressure demonstration test apparatus according to the present invention shares the storage tank of the hydrogen jet flame test apparatus, it is possible to omit the construction of a separate storage tank and a compressor for storing hydrogen gas supplied into the combustion test cab. There is an advantage that can provide a design guideline and facility standards of hydrogen fusion stations that can prevent fire or explosion accidents of the hydrogen station and minimize the damage in the event of an accident.

In addition, the hydrogen explosive pressure demonstration test apparatus according to the present invention is provided with an explosion chamber filled with hydrogen gas inside the combustion test chamber, and circulates the circulation of the air in the explosion chamber so that the hydrogen gas supplied into the explosion chamber is evenly dispersed. It is provided with an additional, and since the hydrogen sensor is installed to detect whether the hydrogen gas is evenly filled in the explosion chamber there is an advantage that can provide the same or similar conditions for the hydrogen gas outflow to the hydrogen fusion filling station.

In addition, the hydrogen explosive pressure demonstration test apparatus according to the present invention maintains the distance from the explosion chamber step by step inside the combustion test dong, and a plurality of pressure detection units are provided, so that when the hydrogen explosion occurs, the distance at which the pressure is delivered from the explosion point Sensing and storing has the advantage of providing more efficient design guidelines and facility standards for hydrogen fusion stations.

1 is a configuration diagram showing a hydrogen explosion proof test apparatus according to an embodiment of the present invention.
Figure 2 is a block diagram showing the test structure, the pressure detection unit and the combustion test chamber control chamber of the hydrogen pressure test apparatus according to an embodiment of the present invention.
3 is a piping circuit diagram of a hydrogen explosion proof test apparatus according to an embodiment of the present invention.
4 is a piping circuit diagram showing a connection supply of the hydrogen explosion test demonstration apparatus according to an embodiment of the present invention.
5 is a photograph of the explosion chamber and the circulation unit of the hydrogen explosion test apparatus according to an embodiment of the present invention.
FIG. 6 is a block diagram illustrating a hydrogen jet flame test apparatus of a high calorific value combustion test system including a hydrogen explosion proof test apparatus according to an embodiment of the present invention.

Hereinafter, with reference to the accompanying drawings will be described an embodiment of the hydrogen explosion proof test apparatus according to the present invention.

In this process, the thickness of the lines or the size of the components shown in the drawings may be exaggerated for clarity and convenience of description.

In addition, terms to be described later are terms defined in consideration of functions in the present invention, which may vary according to a user's or operator's intention or custom.

Therefore, the definitions of these terms should be made based on the contents throughout the specification.
1 is a block diagram showing a hydrogen explosion test demonstration device according to an embodiment of the present invention, Figure 2 is a test structure of the hydrogen pressure test apparatus according to an embodiment of the present invention, the pressure detection unit and the combustion test The control room is shown in the configuration, Figure 3 is a piping circuit diagram of the hydrogen explosion test demonstration apparatus according to an embodiment of the present invention.
In addition, Figure 4 is a piping circuit diagram showing the connection supply of the hydrogen explosion test demonstration device according to an embodiment of the present invention, Figure 5 is an explosion chamber and the circulation of the hydrogen explosion test demonstration device according to an embodiment of the present invention It is a photograph.

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1 to 5, the hydrogen explosion demonstration test apparatus according to an embodiment of the present invention, a test moving structure 110 and a test moving structure 110, which is constructed to provide a laboratory 116 forming a closed space The main experiment extending from the outside to the inside of the laboratory 116, the experimental supply pipe 212, which is supplied with hydrogen gas, is installed in the experimental supply pipe 212, and determines whether to supply hydrogen gas into the laboratory 116. A plurality of test pipes 232 branched from the valve 214 and the distribution block 218 installed in the test supply pipe 212 and extending in various directions inside the laboratory 116, and installed in the test pipe 232 And an experimental valve 234 for determining whether hydrogen gas is discharged through the experimental pipe 232, and an explosion chamber installed inside the laboratory 116 and providing a relatively small closed space compared to the laboratory 116. 270 and branched from the experimental supply pipe 212, the explosion chamber 270 A branch supply pipe 250 connected to the hydrogen supply gas supplying hydrogen gas into the explosion chamber 270, a main branch valve installed in the branch supply pipe 250, and determining whether to supply hydrogen gas to the explosion chamber 270; When hydrogen gas is supplied to the explosion chamber 270, the circulation unit 272 circulates the air in the explosion chamber 270 to evenly distribute the hydrogen gas, and is operated inside the explosion chamber 270 by the operation of the circulation unit 272. Hydrogen detection sensor 290 for detecting whether the hydrogen gas is evenly distributed, a flame portion to provide a flame in the explosion chamber 270 to induce hydrogen explosion, and explosion pressure generated by the explosion of hydrogen gas in the explosion chamber 270 The hydrogen jet flame test device 300 by connecting the pressure detection unit 280 to detect the distance to be transmitted, the hydrogen jet flame test device 300 provided outside the test structure 110, and the experimental supply pipe 212 Supply to supply hydrogen gas to the experimental supply pipe (212) from It includes.

This embodiment, using the experimental apparatus installed for the high calorific value combustion experiment inside the test building structure 110 to supply hydrogen gas to the test building inside, the explosion chamber 270 is installed inside the laboratory 116 After the hydrogen gas is evenly filled in the inside of the explosion chamber, the hydrogen explosion is performed in the explosion chamber 270 by the flame provided from the flame unit, and the pressure is transmitted from the chamber by the pressure detection unit 280 installed outside the chamber. By measuring the pressure of the transverse pressure transmitted for each distance and unit distance, it is possible to provide the standard model and facility standards required for the construction of the hydrogen fusion station by simulating hydrogen explosion that can occur in the hydrogen fusion station.

In addition, the present embodiment, since the hydrogen gas is supplied to the explosion chamber 270 installed inside the laboratory 116 by utilizing the high calorific value combustion test apparatus installed in the test copper structure 110, the hydrogen explosion test demonstration test In order to do this, a connection supply part is installed outside the test building structure 110 from the outside of the test building structure 110 to the inside of the laboratory 116, and the branch supply pipe 250 is installed inside the laboratory 116. The hydrogen explosive demonstration test can be performed, thereby reducing the time and cost required for the hydrogen explosive demonstration test.

The circulation unit 272 of the present embodiment is installed at one side of the explosion chamber 270, and the first circulation fan 274 for circulating hydrogen gas supplied into the explosion chamber 270 and the other side of the explosion chamber 270. It is installed, and includes a second circulation fan 276 for circulating the hydrogen gas supplied into the explosion chamber 270.

Therefore, the internal air is circulated from one side to the other side in the explosion chamber 270, and the internal air is circulated from the other side to the one side, so that hydrogen gas supplied into the explosion chamber 270 is evenly distributed in the explosion chamber 270. If the flame is provided to the hydrogen gas evenly filled in the explosion chamber 270 it can be easily induced hydrogen explosion.

Explosion chamber 270 of the present embodiment, the frame made of a metal material to form the corners of the cube, a transparent material or a synthetic resin panel is inserted into each corner so as to form a sealed space by connecting the respective corners, the sealed space of the cube Will be achieved.

The hydrogen detection sensor 290 of the present embodiment is installed on the explosion chamber 270, the first sensor 292 for detecting the content of the hydrogen gas contained in the explosion chamber 270, and the explosion chamber 270 It is installed in the lower portion, and includes a second sensor 288 for detecting the content of the hydrogen gas contained in the lower portion of the explosion chamber 270, it is determined whether the hydrogen gas is evenly distributed in the explosion chamber 270 by the operation of the purifying unit. Done.

Therefore, when the air content of the hydrogen gas transmitted from the first sensor 292 and the second sensor 288 is detected to be the same or similar, the flame part is determined that the hydrogen gas is filled in the explosion chamber 270 above the set value. The power is supplied to the flame to induce the explosion of hydrogen gas.

As described above, when the hydrogen explosion proceeds in the explosion chamber 270, the panel member that forms the outer wall of the explosion chamber 270 may be deformed or damaged, and the explosion may occur outside the explosion chamber 270 to detect the explosion. In the event of a hydrogen explosion, it is necessary to keep the distance from the explosion point to determine whether it is safe.

The explosion detection unit 280 of the present embodiment is to be vibrated by a plurality of supports installed step by step from the explosion chamber 270 to the outside of the laboratory 116 step by step, and the explosion pressure transmitted from the explosion chamber 270. It includes a vibration panel that is installed to be movable on the support.

Therefore, when the explosion pressure is transmitted from the explosion chamber 270 to the outside direction, the vibration panel flows to detect the explosion pressure, and according to the flow amount of the vibration panel, it is possible to obtain a result of the hydrogen explosion pressure demonstration test.

In addition, the connection supply of the present embodiment, extending from the hydrogen jet flame test apparatus 300, is inserted into the test structure 110, the connection pipe connected to the experimental supply pipe 212, and installed in the connection pipe, It includes a main supply valve is installed to open and close the connection pipe to determine the supply of hydrogen gas into the test structure 110.

The connecting tube extends from the hydrogen jet line 50 of the hydrogen jet flame test apparatus 300, extends into the test copper structure 110, and is connected to the test supply pipe 212, so that the first storage tank of the hydrogen jet flame test apparatus is connected. And high pressure hydrogen gas filled in the second storage tank is supplied into the explosion chamber 270 along the connection pipe and the experiment supply pipe 212.

Therefore, the hydrogen pipes of the first storage tank 12 and the second storage tank 32 are installed by installing the connection pipe and the branch supply pipe 250 without installing a separate pipe inserted into the test building structure 110 from the outside. It can be supplied to the explosion chamber 270 inside.

6 is a block diagram illustrating a hydrogen jet flame test apparatus of a high calorific value combustion test system having a hydrogen explosion proof test apparatus according to an embodiment of the present invention.

The high calorific value combustion test system provided with the hydrogen explosion test apparatus according to the present invention includes a hydrogen jet flame test apparatus for measuring the length of a flame by simulating a hydrogen jet flame outdoors.

The hydrogen jet flame test apparatus according to the present embodiment divides the test space portion and the outside, and is installed inside the wall structure 90 to protect the test apparatus from the flame, and stored inside the wall structure 90, and the hydrogen gas is compressed and stored. To the high pressure hydrogen gas discharged from the tanks 12 and 32, the hydrogen jet control unit 10 for constantly injecting the hydrogen gas supplied from the storage tanks 12 and 32 to a set pressure, and the hydrogen jet control unit 10. The ignition unit 70 is provided with a flame to start the combustion operation, and the hydrogen jet flame sprayed from the hydrogen jet flame 10 is sprayed from the hydrogen jet control unit 10 to visually check and observe the hydrogen jet flame color to the hydrogen jet flame It includes a flame display unit 80 to provide.

Hydrogen gas is charged to the storage tanks 12 and 32 through a supply line extending outside the wall structure 90, and when a driving signal is transmitted to the hydrogen ejection control unit 10, hydrogen is supplied from the storage tanks 12 and 32. Gas is supplied to the nozzle unit 58 along the hydrogen ejection line 50 so that hydrogen gas is dispersed.

At this time, the hydrogen gas is injected at a high pressure by the operation of the hydrogen ejection control unit 10 or higher than the set pressure, and the flame is provided by the operation of the ignition unit 70 installed at one side of the nozzle unit 58, and the hydrogen is injected at high pressure. Jet flames are generated in the gas.

Since the hydrogen jet flame generated as described above is sprayed to face a part of the wall structure 90, the hydrogen jet flame is prevented from being sprayed to the outside of the test space and at the same time, when the test object is placed on the wall structure 90, Combustion experiments can be performed to select materials that withstand jet flames.

In addition, the present embodiment is provided with a flame display unit 80 to provide a color to the hydrogen jet flame, so that the brine scattered from the flame display unit 80 is burned by the hydrogen jet flame is colored in orange to the naked eye or camera of the operator ( By taking a picture of 100), the length and shape of the hydrogen jet flame can be confirmed.

In addition, the amount of heat generated by the hydrogen jet flame can be measured by the heat emission measurement unit 102 provided on one side of the nozzle unit 58 and the rear surface of the barrier wall 92.

The wall structure 90 of the present embodiment is provided so as to face the hydrogen ejection control unit 10 and maintain a space therebetween, and a barrier wall 92 in which test objects of various materials are exposed to the hydrogen jet flame, and a barrier wall ( It is constructed to surround the outer space member 94 and the storage tanks 12 and 32 which are constructed along the edge of the experimental space so as to partition the outer space and the experimental space in which 92 is seated, and the hydrogen jet flame is stored in the storage tanks 12 and 32. The first protective wall (96) for preventing contact with the second) and the second protective wall (98) for covering the hydrogen jet control unit 10 to prevent the hydrogen jet flame from contacting the hydrogen jet control unit (10) It includes.

The outer wall member 94 is constructed along the rim of the test space to partition the test space from the outside, and is opposed to the nozzle 58 and maintains a gap, and a barrier wall 92 is installed to test the test object by hydrogen jet flame. Combustion experiments can be made to determine whether this is deformed or broken.

Therefore, it is possible to determine the materials such as walls, structures, etc. constructed in the hydrogen gas filling station through the hydrogen jet flame combustion test.

The storage tanks 12 and 32 include a first storage tank 12 and a second storage tank 32, and the first storage tank 12 and the second storage tank 32 are in a vertical direction. The first protective wall 96 is installed at intervals and bent in a 'b' shape in a direction opposite to the nozzle unit 58 to surround the first storage tank 12 and the second storage tank 32. It is constructed.

As described above, since the plurality of storage tanks 12 and 32 are provided, the storage capacity of the hydrogen gas can be increased.

A second protective wall 98 shaped like 'b' is constructed between the nozzle unit 58 and the hydrogen ejection control unit 10 to protect the hydrogen ejection control unit 10 from the hydrogen jet flame.

The hydrogen ejection control unit 10 is installed at the hydrogen ejection line 50 and the hydrogen ejection line 50 extending from the storage tanks 12 and 32 to the barrier wall 92 side, and starts or blocks hydrogen gas supply. The pressure of the hydrogen gas ejected through the main valve 52, the hydrogen ejection line 50, the flow meter 54 which measures the flow volume of the ejected hydrogen gas, and the hydrogen ejection line 50 is kept constant. The pressure regulator 56, the supply manifold 57 which collects the hydrogen gas supplied through the pressure regulator 56 in a predetermined space, and the supply manifold 57 are installed, and the hydrogen gas is dispersed in a plurality of flow paths for injection. It includes a plurality of nozzles 58 to be.

Therefore, when the main valve 52 is opened, hydrogen gas that has been compressed and stored in the storage tanks 12 and 32 is discharged through the hydrogen ejection line 50, and the operation of the pressure regulator 56 installed in the hydrogen ejection line 50 is performed. As a result, hydrogen gas is injected into the experimental space through the plurality of nozzles 58 at a constant pressure.

The main valve 52 can be remotely operated by pneumatic pressure to start or end the hydrogen gas ejection test, and the flow rate of the hydrogen gas ejected through the hydrogen ejection line 50 can be measured by the flow meter 54. Will be.

Pressure sensors are installed at the front and rear of the pressure regulator 56, respectively, and the first pressure sensor installed at the front of the pressure regulator 56 measures the pressure of the hydrogen gas supplied from the storage tanks 12 and 32, and the second pressure sensor. In the pressure sensor, the pressure of the hydrogen gas, which is controlled at a constant pressure by passing through the pressure regulator 56, is measured.

Therefore, the blowing pressure of the hydrogen gas is adjusted by the constant pressure regulator 56 so that the pressure value measured by the second pressure sensor maintains the set pressure.

In addition, a second check valve 57a is installed in the hydrogen ejection line 50 to prevent backflow of hydrogen gas.

The hydrogen discharge line 50 extending from the first storage tank 12 is provided with a first three-way valve 14, connected to the first hydrogen supply line 16, and extended from the second storage tank 32. The second three-way valve 34 is installed in the injection line 50 and connected to the second hydrogen supply line 36.

A first check valve 18a is installed in the first hydrogen supply line 16 connected to the first three-way valve 14 to prevent hydrogen gas from flowing back along the first hydrogen supply line 16, and the first The test discharge line 42 and the atmospheric discharge line 44 extending to the outside by connecting the hydrogen supply line 16 and the second hydrogen supply line 36 are provided.

Therefore, it is possible to test whether the hydrogen gas supplied through the second hydrogen supply line 36 is constantly supplied at the set pressure while ejecting hydrogen gas into the test discharge line 42, and the first hydrogen supply line 16 and When the pressure of the second hydrogen supply line 36 rises more than necessary, the air discharge line 44 may be opened to discharge the pressure into the atmosphere.

The test discharge line 42 and the air discharge line 44 are provided with a first manual valve 42a and a second manual valve 44a. When the opening and closing operation is not performed due to a malfunction of the air valve, the first manual valve is operated. By operating the valve 42a or the second manual valve 44a, the test discharge line 42 or the air discharge line 44 can be opened and closed.

The first three-way valve 14 and the second three-way valve 34 of the present embodiment is operated by pneumatic pressure provided from a nitrogen supply line is installed separately, the first three-way valve 14 and the second three-way valve 34 ) Is driven in the forward direction, when the first hydrogen supply line 16 and the second hydrogen supply line 36 are connected to the first storage tank 12 and the second storage tank 32, the first storage tank 12 and Hydrogen gas may be injected into the second storage tank 32.

In addition, when the first three-way valve 14 and the second three-way valve 34 are driven in the reverse direction, the first storage tank 12 and the second storage tank 32 and the hydrogen discharge line 50 are connected to the first storage. Hydrogen gas discharged from the tank 12 and the second storage tank 32 is supplied to the nozzle unit 58 along the hydrogen ejection line 50 for injection, and injected by the flame provided from the ignition unit 70. A flame is generated.

The ignition unit 70 of the present embodiment extends toward the nozzle unit 58 provided in the hydrogen ejection line 50, and supplies the fuel supply line 72 and the fuel supply line 72 to supply fuel for the combustion process. It includes an on-off valve 74 is installed, and an ignition device is installed in the fuel supply line 72, and provides a spark to generate a flame.

Therefore, when the hydrogen jet flame combustion experiment is started, high pressure hydrogen gas is discharged through the nozzle unit 58. At this time, when the fuel provided along the fuel supply line 72 is discharged, a flame is provided from the ignition device to supply hydrogen gas. Combustion is started at a time, and a hydrogen jet flame is generated by the hydrogen gas discharged at a high pressure.

At this time, since the salt water is scattered in the flame display unit 80, the hydrogen jet flame and the salt water react to provide an orange color to the hydrogen jet flame.

The flame display unit 80 of the present embodiment is installed on one side of the nozzle unit 58, the salt water tank 82 for storing the salt water, and the salt water supply line 84 extending from the salt water tank 82 to the nozzle unit 58 side. ), A pump 86 installed in the brine supply line 84, and a brine supply line 84, scattered to scatter hydrogen gas when the brine is supplied to the hydrogen jet flame side by the operation of the pump 86. Part 88 is included.

Therefore, when the hydrogen jet flame is generated, the brine contained in the brine tank 82 is supplied along the brine supply line 84 by the operation of the pump 86, and is burned while being scattered to the hydrogen jet flame side through the scattering unit 88. It will give you an orange flame.

In addition, the present embodiment is arranged on the other side of the scattering portion 88, the camera 100 for capturing and storing the length and shape of the hydrogen jet flame to be colored by the operation of the scattering portion 88, and the back of the firewall body Is installed in the, and further comprises a heat emission measurement unit 102 for measuring the heat generated by the hydrogen jet flame, the operator can visually check the length and shape of the hydrogen jet flame, the image taken by the camera 100 The data can confirm the length, size and shape of the hydrogen jet flame.

In addition, the present embodiment, the hydrogen gas compression injection device for a combustion test device for compressing and storing the hydrogen gas at a high pressure in the storage tank to provide a hydrogen gas injected at a high pressure to be utilized in the hydrogen jet flame combustion test apparatus Is installed.

The hydrogen gas compression injection device for a combustion test apparatus of this embodiment is installed inside a wall structure to provide hydrogen gas to a transport tank 120 installed in a transport vehicle and store hydrogen gas, and a hydrogen jet flame combustion test apparatus. Storage tanks 12 and 32 in which hydrogen gas is compressed and stored, and are installed between the transport tank 120 and the compression providing unit 130, and store the hydrogen gas supplied from the transport tank 120 to the storage tanks 12 and 32. Compression providing unit which is installed in the injection flow path 122 and the injection flow path 122 for supplying to the side to increase the supply pressure of the hydrogen gas to raise the hydrogen gas in the storage tanks 12 and 32 above the set pressure ( 130 and, when the pressure in the compression providing unit 130 or the injection passage 122 rises above the set value, is branched and installed in the injection passage 122 to discharge the hydrogen gas filled in the injection passage 122 into the atmosphere. Emergency discharge passage 124 and hydrogen jet flame combustion Supply between the storage tank (12, 32) and the compression providing unit 130 of the hum device and supplies the hydrogen gas compressed and supplied to the storage tanks (12, 32) by compression or more than the set value from the compression providing unit (130) The flow path 126 is included.

Therefore, when the transport vehicle is parked on one side of the experiment space part and connects the injection flow path 122 and the transport tank 120, when the valve installed in the transport tank 120 is opened, the hydrogen gas supplied along the injection flow path 122 is While compressed through the compression providing unit 130 is pressed to a predetermined value or more and stored in the storage tank (12, 32) along the supply passage 126.

As described above, since the hydrogen gas is compressed and stored above the set value, the combustion test apparatus is driven to provide the flame, and the discharge rate of the hydrogen gas is ejected above the set speed, thereby realizing the hydrogen jet flame.

In addition, the supply passage 126 of the present embodiment, the hydrogen gas passing through the compression providing unit 130 is supplied, so that a more robust pipe must be installed, the supply passage as the outer wall of the pipe is thicker than the injection passage 122 The inner diameter of 126 becomes narrow.

The compression providing unit 130 is installed in the injection passage 122, pressurizes the hydrogen gas provided from the transport tank 120 to a predetermined value or more, and supplies the first booster 132 to the supply passage 126, and the injection. It is branched from the flow path 122 and connected in parallel with the supply flow path 126, and includes a second booster 134 for pressurizing the hydrogen gas provided from the transport tank 120 to a predetermined value or more and supply to the supply flow path 126 do.

As described above, the injection passage 122 is branched into two flow passages, and since the first booster 132 and the second booster 134 are installed in each parallel passage, a pressurization operation for compressing and supplying hydrogen gas at a high pressure is performed. It can be done more effectively.

As described above, since the pressurization operation is performed by the first booster 132 and the second booster 134, a narrow inner diameter and a precise supply passage 126 are not installed longer than necessary, and a relatively short supply passage 126 is provided. The hydrogen gas passing through can be compressed within a short time at the set pressure.

An emergency discharge passage 124 is installed in the first booster 132 and the second booster 134, and when the pressure inside the first booster 132 or the second booster 134 rises above the set pressure, the first booster 132 and the second booster 134 are provided. Emergency valves installed in the booster 132 and the second booster 134 are opened to discharge hydrogen gas into the atmosphere along the emergency discharge passage 124 to prevent a safety accident.

In addition, since the air discharge line 44 branched from the second hydrogen supply line 36 is connected to the emergency discharge line 124, when an abnormal pressure higher than the set pressure is generated in the second hydrogen supply line 44, the second manual operation is performed. The valve 44a is opened to allow hydrogen gas to be discharged to the atmosphere through the air discharge line 44 and the emergency discharge line 124.

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As a result, gas leakage occurs in hydrogen fusion stations to provide standard models and facility standards for heterogeneous energy stations that combine hydrogen stations with LPG, CNG, and gas stations. By analyzing the environment, it is possible to analyze the fire or explosion stability, and in case of hydrogen explosion, it is possible to calculate the safety distance by measuring the width pressure by distance from the point of explosion, and the existing hydrogen jet flame combustion tester From this, it is possible to provide a hydrogen explosion proof test apparatus capable of supplying hydrogen gas to a combustion test wing for performing a hydrogen explosion proof test.

Although the present invention has been described with reference to one embodiment shown in the drawings, this is merely exemplary, and various modifications and equivalent other embodiments are possible to those skilled in the art. Will understand.

In addition, the hydrogen explosion demonstration test apparatus has been described as an example, but this is merely exemplary, and the test apparatus of the present invention may be used in other products than the hydrogen explosion demonstration test apparatus.

Therefore, the true technical protection scope of the present invention will be defined by the claims below.

10: hydrogen discharge control unit 12: the first storage tank
14: first three-way valve 16: the first hydrogen supply line
18: manual valve for nitrogen purge 18a: first check valve
32: second storage tank 34: second three-way valve
36: second hydrogen supply line 38: manual valve for hydrogen purge
42: test discharge line 42a: first manual valve
44: air discharge line 44a: second manual valve
50: hydrogen discharge line 52: main valve
54 flow meter 56 constant pressure
57a: second check valve 58: nozzle
70: ignition unit 72: fuel supply line
74: on-off valve 80: flame display unit
82: brine tank 84: brine supply line
86: pump 88: scattering
90: wall structure 92: protective wall
94: outer wall member 96: the first protective wall
98: second protective wall 100: camera
102: heat emission measurement unit 110: test copper structure
112: combustion test building control room 114: outdoor laboratory control room
116: laboratory 120: transport tank
122: injection passage 124: emergency discharge passage
126: supply passage 130: compression providing unit
132: first booster 134: second booster
136: nitrogen supply line 200: hydrogen explosion test device
212: experimental supply pipe 214: main experimental valve
216: air discharge line 218: distribution block
232: experimental piping 234: experimental valve
250: explosion chamber 252: branch pressure regulator
254: branch pressure gauge 256: main branch valve
270: explosion chamber 272: circulation
274: first circulation fan 276: second circulation fan
280: pressure detection unit 282: first detection sensor
284: second detection sensor 286: third detection sensor
288: flame portion 290: hydrogen detection sensor
292: first sensor 294: second sensor

Claims (5)

A test building constructed to provide a laboratory that makes a confined space;
An experimental supply pipe extending from the outside of the test structure to the inside of the laboratory and supplied with hydrogen gas;
A main experiment valve installed in the experiment supply pipe and determining whether hydrogen gas is supplied into the laboratory;
A plurality of test pipes branched from a distribution block installed in the test supply pipe and extending in various directions in the laboratory;
An experimental valve installed in the test pipe and determining whether to discharge hydrogen gas through the test pipe;
An explosion chamber installed inside the laboratory and providing a relatively small closed space compared with the laboratory;
A branch supply pipe branched from the test supply pipe and connected to the explosion chamber to supply hydrogen gas into the explosion chamber;
A main branch valve installed at the branch supply pipe and determining whether hydrogen gas is supplied to the explosion chamber;
A circulation unit configured to circulate air in the explosion chamber to evenly distribute hydrogen gas when hydrogen gas is supplied to the explosion chamber;
A hydrogen detection sensor for detecting whether hydrogen gas is evenly distributed in the explosion chamber by the circulation unit;
A flame unit for inducing hydrogen explosion by providing a flame inside the explosion chamber;
An explosion pressure sensing unit for sensing a distance at which the explosion pressure generated by the hydrogen gas is exploded in the explosion chamber is transferred; And
A hydrogen supply flame test apparatus provided outside the test structure and a connection supply unit connecting the test supply pipe to supply the hydrogen gas from the hydrogen jet flame test device to the test supply pipe,
The connection supply unit,
A connection tube extending from the hydrogen jet flame test apparatus and inserted into the test structure and connected to the test supply pipe; And
And a main supply valve installed at the connection pipe and installed to be openable and open at the connection pipe to determine whether hydrogen gas is supplied into the test structure.
The connection supply unit connects the hydrogen jet flame test apparatus provided in the outdoor test site and the hydrogen explosion test device installed in the combustion test blast, so that the hydrogen gas supplied from the hydrogen jet flame test apparatus is installed inside the combustion test wing. Hydrogen explosion proof test apparatus, characterized in that can be supplied into the chamber.
The method of claim 1, wherein the circulation unit,
A first circulation fan installed at one side of the explosion chamber and circulating hydrogen gas supplied into the explosion chamber; And
And a second circulation fan installed at the other side of the explosion chamber and circulating hydrogen gas supplied into the explosion chamber.
The method of claim 1, wherein the hydrogen detection sensor,
A first sensor installed above the explosion chamber and sensing a content of hydrogen gas included in the explosion chamber; And
And a second sensor installed under the explosion chamber and sensing a content of hydrogen gas contained in the explosion chamber.
The method of claim 1, wherein the pressure detection unit,
A plurality of supports, which are installed stepwise away from the explosion chamber at every unit distance in the laboratory outward direction; And
And a vibration panel installed on the support so as to be vibrated by the explosion pressure transmitted from the explosion chamber.
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