KR102434338B1 - Breakaway device for hydrogen station - Google Patents

Abstract

A hydrogen breakaway device is presented. A hydrogen breakaway device configured in a hose for delivering a fluid supplied from a hydrogen charging facility according to an embodiment to an object includes a filter unit configured inside the hydrogen breakaway device to filter foreign substances contained in the fluid, The filter unit may have a cylindrical shape including a plurality of holes for communicating the inside and the outside to guide the fluid from the inlet to the outlet, and may form a flow path to the inside and outside of the filter unit through the holes.

Description

Hydrogen breakaway device {BREAKAWAY DEVICE FOR HYDROGEN STATION}

The following embodiments relate to a hydrogen breakaway device, and more particularly, to a hydrogen breakaway device for reducing pressure loss.

1 is a view for explaining a general hydrogen breakaway device.

Referring to FIG. 1 , since a hydrogen fueling station handles hydrogen at a very high pressure, robustness of the facility and safety management techniques are required. In particular, when the vehicle starts during charging, it may cause serious damage to the dispenser and infrastructure of the charging station, and it is necessary to install a safety device called the hydrogen breakaway device 10, which is a device to prevent this. do. The hydrogen breakaway device 10 is installed between the dispenser 20 of the hydrogen charging station and the hose and nozzle 30 connecting the vehicle, and is separated when an external force is applied, such as when the vehicle moves during charging, and internal check of the hydrogen supply pipe The valve is basically configured to actuate and shut off the leakage of fluid.

Excessive stress occurs due to stress concentration under high withstand pressure conditions of 700 bar (70 MPa), and charging efficiency is reduced due to energy loss when high pressure drop occurs during charging and transportation. Accordingly, the hydrogen breakaway device 10 through which the hydrogen fluid flows is required to have a low pressure loss in order to improve charging efficiency. In general, in-pipe flow, pressure loss occurs due to friction loss due to the roughness of the surface and rapid changes in the diameter and direction of the flow path. Therefore, in order to reduce the pressure loss in the hydrogen breakaway device 10 , a flow path shape design that minimizes the flow direction change is required.

Korean Patent No. 10-0837312 relates to a breakaway having such a uniform separation force, and relates to a device for providing a breakaway in which the separation force of the socket part and the plug part is maintained constant regardless of the change in the charging pressure of the charged fuel is described.

Korean Patent No. 10-0837312

The embodiments describe a hydrogen breakaway device, and more specifically, provide a technique for minimizing a change in a flow direction by changing a flow path of a fluid through a cylindrical filter unit having a plurality of holes communicating with the inside and the outside.

Embodiments are to provide a hydrogen breakaway device that minimizes the flow direction by applying the Taguchi technique design variable factor analysis and flow phase optimization case, and minimizes the flow direction change in order to improve the flow characteristics in terms of pressure loss.

A hydrogen breakaway device configured in a hose for delivering a fluid supplied from a hydrogen charging facility according to an embodiment to an object includes a filter unit configured inside the hydrogen breakaway device to filter foreign substances contained in the fluid, The filter unit may have a cylindrical shape including a plurality of holes for communicating the inside and the outside to guide the fluid from the inlet to the outlet, and may form a flow path to the inside and outside of the filter unit through the holes.

In the filter unit, a blocking unit for blocking an internal flow passage passing through the cylindrical shape is formed inside the inlet, and the fluid introduced into the inlet is branched through the holes on the inlet side and guided to the outside, and then another It may enter the interior through the holes and may flow out through the outlet.

The holes at the inlet side may form a plurality of optimization parts that are branched into a plurality of flow paths by the blocking unit.

The optimization part may be composed of four or more.

The blocking part of the filter part may have a conical shape in which the inlet side protrudes, and may form a plurality of optimization parts including a straight part in an oblique direction.

The blocking part of the filter part may have a horn shape in which the inlet side protrudes, and may form a plurality of optimization parts formed of a curved part in an oblique direction.

In the optimization part, an angle between the line l _center connecting the center of the inlet and the center of the outlet of the hole forming the optimization part and the line l _pz parallel to the line connecting the inlet and the outlet may be 40 to 60 degrees.

In particular, in the optimization part, an angle between a line l _center connecting an inlet center and an outlet center of the hole forming the optimization part and a line l _pz parallel to a line connecting the inlet and the outlet may be 45 degrees.

The filter unit may be disposed to be spaced apart from the housing of the hydrogen breakaway device by a predetermined distance to form a flow path into and out of the filter unit through the holes.

The filter unit may be formed of a multi-sintered mesh filter in which a plurality of sintered mesh filters are laminated outside the cylindrical shape.

A method of operating a hydrogen breakaway device configured in a hose for delivering a fluid supplied from a hydrogen charging facility to an object according to another embodiment passes through a filter unit configured inside the hydrogen breakaway device to filter foreign substances contained in the fluid In the step of filtering foreign substances contained in the fluid by passing the filter unit, the filter unit has a cylindrical shape having a plurality of holes for communicating the inside and the outside to guide the fluid from the inlet to the outlet, , a flow path may be formed in and out of the filter unit through the holes.

In the step of filtering foreign substances contained in the fluid by passing the filter part, a blocking part for blocking the internal flow path passing through the cylindrical shape is formed inside the inlet, and the fluid introduced into the inlet is located at the inlet side. branching through the holes and guiding to the outside; and the fluid branched to the outside enters through other holes and flows out through the outlet.

The holes at the inlet side may form a plurality of optimization parts that are branched into a plurality of flow paths by the blocking unit.

The blocking part of the filter part may have a horn shape in which the inlet side protrudes, and may form a plurality of optimization parts formed of a curved part in an oblique direction.

The filter unit may be formed of a multi-sintered mesh filter in which a plurality of sintered mesh filters are laminated outside the cylindrical shape.

According to embodiments, it is possible to provide a hydrogen breakaway device that minimizes the flow direction by applying the Taguchi technique design variable factor analysis and flow phase optimization case, and minimizes the flow direction change in order to improve the flow characteristics in terms of pressure loss.

1 is a view for explaining a general hydrogen breakaway device.
2 is a diagram schematically illustrating a hydrogen breakaway device according to an embodiment.
3 is a view illustrating a longitudinal cross-section of a filter part of a hydrogen breakaway device according to an embodiment.
4 is a view showing a flow analysis result applying a filter equivalent model according to an embodiment.
5 is a view showing a linear flow path type filter unit according to an embodiment.
6 is a diagram illustrating a diagonal flow path filter unit according to an exemplary embodiment.
7 is a view illustrating a curved flow path filter unit according to an exemplary embodiment.
8 is a diagram for explaining the factor analysis of design variables using the Taguchi technique according to an embodiment.
9 is a diagram for explaining flow phase optimization according to an embodiment.
10 is a view illustrating a flow analysis result according to a shape of a flow path at an inlet side of a filter unit according to an exemplary embodiment.
11 is a diagram illustrating a flow analysis result according to a flow path shape of a filter unit according to an exemplary embodiment.
12 is a view for explaining an optimization part of a filter unit according to an exemplary embodiment.
13 is a diagram illustrating a pressure distribution and a velocity distribution with respect to the number of optimized parts according to an exemplary embodiment.
14 is a view showing a perspective view of a filter part according to an embodiment.
FIG. 15 is a diagram illustrating a pressure distribution in a cross-section according to the number of optimized parts of a cross-section AA′ of FIG. 14 .
FIG. 16 is a view showing the velocity distribution of the cross section according to the number of optimized parts of the cross section AA′ of FIG. 14 .
17 is a graph illustrating pressure drop according to the number of optimized parts according to an exemplary embodiment.
18 is a view for explaining an angle between filter units according to an embodiment.
19 is a diagram illustrating a pressure distribution and a velocity distribution with respect to an angle between them according to an exemplary embodiment.
FIG. 20 is a diagram illustrating pressure distribution of a cross section according to an angle between the cross sections AA′ of FIG. 14 .
FIG. 21 is a view showing the velocity distribution of the cross section according to the angle between the cross sections AA′ of FIG. 14 .
22 is a graph illustrating pressure drop according to an angle therebetween according to an exemplary embodiment.

Hereinafter, embodiments will be described with reference to the accompanying drawings. However, the described embodiments may be modified in various other forms, and the scope of the present invention is not limited by the embodiments described below. In addition, various embodiments are provided in order to more completely explain the present invention to those of ordinary skill in the art. The shapes and sizes of elements in the drawings may be exaggerated for clearer description.

Embodiments relate to a hydrogen breakaway device, and a flow path shape having a pressure loss reduction effect may be implemented by applying the Taguchi technique and flow phase optimization. Below, the region where the main pressure loss of the hydrogen breakaway device occurs can be derived through flow analysis, and key variables can be identified through design variable selection and factor analysis. After that, it is possible to determine the effect of reducing the pressure loss by deriving an optimal shape.

2 is a diagram schematically illustrating a hydrogen breakaway device according to an embodiment.

Referring to FIG. 2 , the hydrogen breakaway device 10 according to an embodiment may include a filter unit 11 , a driving unit 12 , a socket unit 13 , and a plug unit 14 . The hydrogen breakaway device 10 breaks the fastening state of the filter unit 11, the driving unit 12, and the socket unit 13 connected to the charging hose and the plug unit 14 connected to the vehicle, etc. when a sudden shock occurs. It can prevent damage to the charging hose.

The filter unit 11 is connected to the end of the filling hose drawn from the fluid (preferably, hydrogen gas) filling facility to filter foreign substances that may be included in the fluid. The driving unit 12 connected to the filter unit 11 may be configured for reassembly when separation of the hydrogen breakaway device 10 occurs. The socket unit 13 connected to the driving unit 12 performs a check valve function and a clamp function. For example, the check valve is closed by the tension of the check valve spring, and when the plug is engaged, the flow path is pushed back by the check valve of the plug. In case of emergency, when the plug is disconnected, the internal flow path is automatically closed by the check valve to shield the hydrogen gas. In addition, one side of the plug unit 14 may be connected to the socket unit 13 and the other side may be connected to the end of a hose for supplying fluid to the vehicle. When the plug part 14 is assembled with the plug, the check valve may block the plug by the check valve spring tension to prevent hydrogen discharge.

Accordingly, the fluid supplied from the external charging facility may be injected into a vehicle or the like through the filter unit 11 , the driving unit 12 , the socket unit 13 , and the plug unit 14 .

Here, the filter unit 100 having a cylindrical shape configured inside the filter unit 11 may be referred to as a filter unit. The filter unit 100 is formed with a blocking part blocking the inner flow path passing through the cylindrical shape inside the inlet, and the fluid introduced into the inlet is branched through the holes on the inlet side and guided to the outside, and then inside through other holes. It can enter through the outlet and outflow. In this case, the holes on the inlet side may form a plurality of optimization parts that are branched into a plurality of flow paths by the blocking unit.

3 is a view illustrating a longitudinal cross-section of a filter part of a hydrogen breakaway device according to an embodiment.

Referring to FIG. 3 , a hydrogen breakaway device configured in a hose that delivers a fluid supplied from a hydrogen charging facility to an object according to an embodiment is a filter configured inside the hydrogen breakaway device to filter foreign substances contained in the fluid part 100 may be included.

The filter unit 100 has a cylindrical shape having a plurality of holes communicating the inside and the outside to guide the fluid from the inlet to the outlet, and may form a flow path into and out of the filter unit 100 through the holes. Here, the filter unit 100 may be disposed to be spaced apart from the housing of the hydrogen breakaway device by a predetermined distance to form a flow path into and out of the filter unit 100 through holes.

More specifically, the filter unit 100 is formed with a blocking unit 112 blocking the inner flow path passing through the cylindrical shape inside the inlet, and the fluid introduced into the inlet is branched through the holes on the inlet side 111. After being guided to the outside, it may enter the interior through other holes and may flow out through the outlet. In this case, the holes on the inlet side 111 may form a plurality of optimization parts that are branched into a plurality of flow paths by the blocking part 112 . For example, four or more optimization parts may be configured.

For example, the blocking unit 112 of the filter unit 100 may have a conical shape in which the inlet side 111 protrudes, and may form a plurality of optimization parts composed of oblique straight portions. As another example, the blocking part 112 of the filter part 100 may have a horn shape in which the inlet side 111 protrudes, and may form a plurality of optimization parts including diagonal curved parts. Here, the optimization part may have an angle of 40 to 60 degrees between the line l _center connecting the center of the inlet and the center of the outlet of the hole forming the optimization part and the line l _pz parallel to the line connecting the inlet and the outlet. In particular, the angle between l _center and l _pz may be 45 degrees.

Also, the filter unit 100 may be formed of a multi-sintered mesh filter 200 in which a plurality of sintered mesh filters are laminated outside the cylindrical shape. Accordingly, the filter unit 100 may filter impurities using the multi-sintered mesh filter 200 . The filter unit 100 may generate resistance due to the multi-sintered mesh filter 200 and may have a structure having a rapid flow rate and flow direction change. At this time, the filter unit 100 may generate a pressure loss due to generation of a vortex, etc., and thus charging efficiency may be reduced.

4 is a view showing a flow analysis result applying a filter equivalent model according to an embodiment.

Referring to FIG. 4 , as a result of analyzing the flow characteristics of the filter unit to which the filter equivalent model is applied, there is a slight difference in pressure drop (less than 1%) in the high-pressure hydrogen condition, and the maximum pressure drop occurs in the narrowing region of the filter unit. can be checked That is, since the pressure drop due to the shape is generated, it is required to design the shape of the internal flow path to improve the flow characteristics.

5 is a view showing a linear flow path type filter unit according to an embodiment.

As shown in Figure 5, the filter unit 110 is formed of a cylindrical shape consisting of a plurality of holes (113a, 113b) for communicating the inside and the outside to guide the fluid from the inlet to the outlet, the holes (113a, 113b) A flow path may be formed in and out of the filter unit 110 through the filter unit 110 . Here, the filter unit 110 may be disposed to be spaced apart from the housing 101 of the hydrogen breakaway device by a predetermined interval to form a flow path into and out of the filter unit 110 through the holes 113a and 113b.

The filter unit 110 may have a blocking unit 112 formed inside the inlet to block the internal flow path passing through the cylindrical shape. Accordingly, the fluid introduced into the inlet may be branched through the plurality of holes 113a on the inlet side and guided to the outside, then may enter the inside through the other holes 113b and flow out through the outlet.

6 is a diagram illustrating a diagonal flow path filter unit according to an exemplary embodiment.

As shown in FIG. 6 , the filter unit 120 may have a blocking unit 122 blocking the inner flow path passing through the cylindrical shape on the inside of the inlet, and the holes 123a on the inlet side are formed with a blocking unit ( 122 may form a plurality of optimization parts 123a branched into a plurality of flow paths. The plurality of optimization parts 123a may be formed of oblique straight portions to branch and guide the fluid introduced into the inlet to the outside. Thereafter, the fluid may enter the interior through the other holes 123b and may flow out through the outlet.

7 is a view illustrating a curved flow path filter unit according to an exemplary embodiment.

As shown in FIG. 7 , the filter unit 130 may have a blocking unit 132 blocking the inner flow path passing through the cylindrical shape on the inside of the inlet, and the holes 133a on the inlet side are formed with a blocking unit ( A plurality of optimization parts 133a branched into a plurality of flow passages by the 132 may be formed. The plurality of optimization parts may be formed of a curved portion in an oblique direction to branch and guide the fluid introduced into the inlet to the outside. Thereafter, the fluid may enter the interior through the other holes 133b and may flow out through the outlet.

8 is a diagram for explaining the factor analysis of design variables using the Taguchi technique according to an embodiment.

8 (a) and (b) show the design parameters of the Taguchi technique for flow optimization, and (c) and (d) show the results of the Taguchi technique for flow optimization.

9 is a diagram for explaining flow phase optimization according to an embodiment.

Referring to FIG. 9 , an optimal internal shape to which flow phase optimization is applied may be designed. The filter inlet can be redesigned by applying the existing flow phase optimization case using the Boltzmann equation. At this time, it is possible to design a structure that minimizes the change in the flow direction in the same way as the result of the factor analysis of the design variables of the Taguchi technique.

Based on existing research, it can be redesigned to have a shape that minimizes flow direction change, and at this time, the curvature of the flow path (R=9) can be reflected to secure structural stability.

10 is a view illustrating a flow analysis result according to a shape of a flow path at an inlet side of a filter unit according to an exemplary embodiment.

Referring to FIG. 10 , the flow analysis results according to the flow path shape of the inlet side of the filter unit according to an embodiment are compared, and the optimum internal shape is designed by applying the flow phase optimization and flow analysis results are shown. Here, the inlet side of the filter part may be the 111 part mentioned in FIG. 3 .

10A and 10B show pressure distributions according to the flow path shape at the inlet side of the straight flow path filter unit described in FIG. 5 and the flow path shape at the inlet side of the curved flow path type filter unit described in FIG. 7 . In addition, (c) and (d) show the velocity distribution according to the flow path shape at the inlet side of the straight flow path filter unit described in FIG. 5 and the flow path shape at the inlet side of the curved flow path type filter unit described in FIG. 7 .

For the flow path shape designed to verify the effect of the embodiments, the pressure loss reduction effect according to the flow path shape can be compared and verified with Fluent (ANSYS, ver.19.0, U.S.A.), a flow analysis analysis program.

When the curved flow path filter part is applied, it can be seen that the pressure drop is reduced by 50% (0.04 MPa → 0.02 MPa) compared to the shape of the straight flow path type filter part. On the other hand, in the case of the shape of the linear flow path type filter unit, pressure loss occurs due to a structure (empty space in which fluid does not flow) in which a vortex may occur. Accordingly, the flow analysis can be performed on the entire model of the filter unit by applying the redesigned shape.

11 is a diagram illustrating a flow analysis result according to a flow path shape of a filter unit according to an exemplary embodiment.

11 (a) shows the pressure distribution according to the flow path shape of each filter unit described above, and (b) shows the velocity distribution according to the flow path shape of each filter unit.

According to the embodiments, the effect of reducing the pressure loss by 70% of the internal shape to which the Taguchi technique and the flow phase optimization case are applied can be confirmed. In the case of flow phase optimization, structural stability can be secured due to reduced pressure loss and uniform stress distribution. Therefore, it is possible to derive an optimal shape having a uniform pressure distribution and a pressure loss reduction effect. At this time, the optimal shape is a structure that minimizes the flow direction change.

In the case of the existing shape, a sudden change in the flow direction causes a vortex due to an empty space in which the fluid does not flow near the flow path. Therefore, it is possible to confirm the effect of reducing the pressure loss by 70% compared to the existing shape by designing the flow path shape that minimizes the change in the flow path direction (0.44 MPa → 0.13 MPa).

Below, the analysis according to the number of outlets (N) on the inlet side of the filter unit will be described.

12 is a view for explaining an optimization part of a filter unit according to an exemplary embodiment.

Referring to FIG. 12 , in the filter unit 100, a blocking unit for blocking an internal flow passage passing through a cylindrical shape is formed inside the inlet, and the fluid introduced into the inlet is branched through holes on the inlet side and guided to the outside. , can enter the interior through other holes and exit through the outlet. In this case, the holes on the inlet side may form a plurality of optimization parts that are branched into a plurality of flow paths by the blocking unit.

Here, N is the number of optimized parts, A is the outlet cross-sectional area of the optimized part, d _N is the outlet diameter when there are N optimized parts, and the calculation of d _N according to the number (A is always constant) is expressed as follows can be

For example, when N = 2, d _o = 8.49 mm, when N = 3, d _o = 6.93 mm, when N = 4, d _o = 6 mm, and when N = 5, d _o = 5.37 mm.

13 is a diagram illustrating pressure distribution and velocity distribution with respect to the number of optimized parts according to an exemplary embodiment. 14 is a view showing a perspective view of a filter part according to an embodiment. And, FIG. 15 is a view showing the pressure distribution of the cross section according to the number of optimized parts of the section AA′ of FIG. 14 , and FIG. 16 is a view showing the velocity distribution of the section according to the number of optimized parts of the section AA′ of FIG. 14 .

17 is a graph illustrating pressure drop according to the number of optimized parts according to an exemplary embodiment. As shown in FIG. 17 , it can be seen that as the number of optimized parts increases, the pressure drop decreases, and when the number of flow passages is 4, the differential pressure is constant at 0.18 MPa.

Below, the analysis according to the angle of the outlet on the inlet side of the filter unit will be described.

18 is a view for explaining an angle between filter units according to an embodiment.

Referring to FIG. 18 , the filter unit 100 may form a plurality of optimization parts in which holes on the inlet side are branched into a plurality of flow paths by a blocking unit. In this case, it is possible to form a plurality of optimization parts including curved portions in a diagonal direction. In addition, the blocking part of the filter part may be formed in a horn shape in which the inlet side protrudes.

Here, l _center is a line connecting the center of the inlet and the center of the outlet of the optimization part, l _pz is a line parallel to the Z axis, α is the angle between l _center and l _pz , and l _or is the length of the optimization part.

When α=30°, lor=17.06 mm (-2.32 mm), when α=45°, lor=19.38 mm, and when α=60°, lor=21.18 mm (+1.80 mm).

19 is a diagram illustrating a pressure distribution and a velocity distribution with respect to an angle in between, according to an exemplary embodiment. FIG. 20 is a diagram illustrating a pressure distribution in a cross-section according to an angle between the cross-sections AA′ of FIG. 14 , and FIG. 21 is a diagram illustrating a velocity distribution in a cross-section according to an angle between the cross-sections AA′ in FIG. 14 .

22 is a graph illustrating a pressure drop according to an angle between the two sides according to an exemplary embodiment. As shown in FIG. 22 , it can be seen that the lowest pressure drop appears at 45 degrees as a result of analysis for the angles between 30, 45, and 60 degrees. Therefore, the most suitable shape for flow can be expected to be 45 degrees.

In other words, the optimization part may have an angle of 40 to 60 degrees between the line l _center connecting the inlet center and the outlet center of the hole forming the optimization part and the line l _pz parallel to the line connecting the inlet and outlet ports. In particular, the angle between l _center and l _pz may be 45 degrees.

Hereinafter, a method of operating a hydrogen breakaway device according to an embodiment will be described.

The method of operating a hydrogen breakaway device configured in a hose for delivering a fluid supplied from a hydrogen charging facility to an object according to an embodiment is to filter foreign substances contained in the fluid by passing a filter unit configured inside the hydrogen breakaway device. may include steps.

Here, the step of passing the filter unit to filter foreign substances contained in the fluid includes the filter unit having a cylindrical shape having a plurality of holes communicating the inside and the outside to guide the fluid from the inlet to the outlet, and the inside and outside of the filter unit through the holes can form a flow path.

More specifically, in the step of filtering foreign substances contained in the fluid by passing through the filter unit, a blocking part for blocking the internal flow passage passing through the cylindrical shape is formed inside the inlet, so that the fluid flowing into the inlet can pass through the holes on the inlet side. It may include a step of being branched through and guided to the outside, and a step of allowing the fluid branched to the outside to enter the inside through other holes and flow out through the outlet.

As described above, the holes on the inlet side may form a plurality of optimization parts that are branched into a plurality of flow paths by the blocking unit. For example, the blocking part of the filter part may have a horn shape with an inlet side protruding, and may form a plurality of optimization parts formed of a curved part in an oblique direction. In addition, the filter unit may be formed of a multi-sintered mesh filter in which a plurality of sintered mesh filters are laminated outside the cylindrical shape.

According to embodiments, in the case of metal additive manufacturing (PBF) SUS316L material, a decrease in elongation of 30% or more compared to conventional materials in a hydrogen atmosphere is confirmed. When fabricated by metal additive manufacturing (PBF), a design with a corner curvature (R) of 6 or higher is required for structural stability.

In addition, according to embodiments, it is possible to provide an equivalent model for understanding the flow characteristics of the internal multi-sintered mesh filter of the hydrogen breakaway device. As a result of flow analysis applying the equivalent model with an error of 0.3%, a pressure drop difference of less than 1% occurred, which is insignificant. Since a high pressure drop occurs due to a sudden change in the flow direction, a redesign of the internal shape is required.

In addition, according to embodiments, the Taguchi technique design variable factor analysis and flow phase optimization case may be applied to design an internal shape for improving flow characteristics. Through the Taguchi technique, it can be confirmed that the inlet angle that minimizes the flow path direction is a key variable among the design variables. In order to improve the flow characteristics in terms of pressure loss, it is effective to minimize the change in the flow direction. In addition, in the case of the optimal shape compared to the existing shape, the pressure loss can be reduced by 70%, and structural stability (R=9) can be secured due to the uniform pressure distribution.

The device described above may be implemented as a hardware component, a software component, and/or a combination of the hardware component and the software component. For example, devices and components described in the embodiments may include, for example, a processor, a controller, an arithmetic logic unit (ALU), a digital signal processor, a microcomputer, a field programmable array (FPA), It may be implemented using one or more general purpose or special purpose computers, such as a programmable logic unit (PLU), microprocessor, or any other device capable of executing and responding to instructions. The processing device may execute an operating system (OS) and one or more software applications running on the operating system. The processing device may also access, store, manipulate, process, and generate data in response to execution of the software. For convenience of understanding, although one processing device is sometimes described as being used, one of ordinary skill in the art will recognize that the processing device includes a plurality of processing elements and/or a plurality of types of processing elements. It can be seen that may include For example, the processing device may include a plurality of processors or one processor and one controller. Other processing configurations are also possible, such as parallel processors.

The software may comprise a computer program, code, instructions, or a combination of one or more thereof, which configures a processing device to operate as desired or is independently or collectively processed You can command the device. The software and/or data may be any kind of machine, component, physical device, virtual equipment, computer storage medium or device, to be interpreted by or to provide instructions or data to the processing device. may be embodied in The software may be distributed over networked computer systems and stored or executed in a distributed manner. Software and data may be stored in one or more computer-readable recording media.

The method according to the embodiment may be implemented in the form of program instructions that can be executed through various computer means and recorded in a computer-readable medium. The computer-readable medium may include program instructions, data files, data structures, etc. alone or in combination. The program instructions recorded on the medium may be specially designed and configured for the embodiment, or may be known and available to those skilled in the art of computer software. Examples of the computer-readable recording medium include magnetic media such as hard disks, floppy disks and magnetic tapes, optical media such as CD-ROMs and DVDs, and magnetic such as floppy disks. - includes magneto-optical media, and hardware devices specially configured to store and execute program instructions, such as ROM, RAM, flash memory, and the like. Examples of program instructions include not only machine language codes such as those generated by a compiler, but also high-level language codes that can be executed by a computer using an interpreter or the like.

As described above, although the embodiments have been described with reference to the limited embodiments and drawings, various modifications and variations are possible by those skilled in the art from the above description. For example, the described techniques are performed in a different order than the described method, and/or the described components of the system, structure, apparatus, circuit, etc. are combined or combined in a different form than the described method, or other components Or substituted or substituted by equivalents may achieve an appropriate result.

Therefore, other implementations, other embodiments, and equivalents to the claims are also within the scope of the following claims.

Claims (15)

In the hydrogen breakaway device configured in a hose for delivering a fluid supplied from a hydrogen charging facility to an object,
A filter unit configured inside the hydrogen breakaway device to filter foreign substances contained in the fluid
including,
The filter unit,
A plurality of holes communicating the inside and the outside are formed in a cylindrical shape to guide the fluid from the inlet to the outlet, and through the holes to form a flow path to the inside and outside of the filter unit, and to penetrate the cylindrical shape inside the inlet A blocking part blocking the internal flow path is formed, and the fluid introduced into the inlet is branched through the holes on the inlet side and guided to the outside, then enters through other holes and flows out through the outlet,
The holes on the inlet side form a plurality of optimization parts that are branched into a plurality of flow paths by the blocking unit,
The blocking part of the filter part has a horn shape with the inlet side protruding, and a plurality of optimizations made of a curved part in a diagonal direction by applying flow phase optimization to reduce pressure drop compared to the shape of a straight flow path type filter part form a part,
In the optimization part, the angle between the line l _center connecting the inlet center and the outlet center of the hole forming the optimization part and the line l _pz parallel to the line connecting the inlet and the outlet is 40 to 60 degrees,
The outer side of the cylindrical shape is made of a multi-sintered mesh filter (multi-sintered mesh filter) in which a plurality of sintered mesh filters are laminated
A hydrogen breakaway device, characterized in that. delete delete According to claim 1,
The optimization part is
consisting of 4 or more
A hydrogen breakaway device, characterized in that. delete delete delete According to claim 1,
The optimization part is
The angle between the line l _center connecting the inlet center and the outlet center of the hole forming the optimization part and the line l _pz parallel to the line connecting the inlet and the outlet is 45 degrees
A hydrogen breakaway device, characterized in that. According to claim 1,
The filter unit,
to be spaced apart from the housing of the hydrogen breakaway device by a predetermined distance to form a flow path into and out of the filter unit through the holes
A hydrogen breakaway device, characterized in that. delete In the operating method of a hydrogen breakaway device configured in a hose that delivers a fluid supplied from a hydrogen charging facility to an object,
Filtering foreign substances contained in the fluid by passing a filter unit configured inside the hydrogen breakaway device
including,
The step of filtering foreign substances contained in the fluid by passing the filter unit,
The filter unit has a cylindrical shape having a plurality of holes communicating the inside and the outside to guide the fluid from the inlet to the outlet, and to form a flow path to the inside and outside of the filter through the holes,
The step of filtering foreign substances contained in the fluid by passing the filter unit,
forming a blocking part blocking an internal flow passage passing through the cylindrical shape inside the inlet, so that the fluid introduced into the inlet is branched through the holes on the inlet side and guided to the outside; and
The fluid branched to the outside enters the inside through other holes and flows out through the outlet
including,
The holes on the inlet side form a plurality of optimization parts that are branched into a plurality of flow paths by the blocking unit,
The blocking part of the filter part has a horn shape with the inlet side protruding, and a plurality of optimizations made of a curved part in a diagonal direction by applying flow phase optimization to reduce pressure drop compared to the shape of a straight flow path type filter part form a part,
In the optimization part, the angle between the line l _center connecting the inlet center and the outlet center of the hole forming the optimization part and the line l _pz parallel to the line connecting the inlet and the outlet is 40 to 60 degrees,
The filter unit,
The outer side of the cylindrical shape is made of a multi-sintered mesh filter (multi-sintered mesh filter) in which a plurality of sintered mesh filters are laminated
A method of operating a hydrogen breakaway device, characterized in that. delete delete delete delete

Images