Hydrogen regulator with damping structure

Abstract

The present invention relates to a hydrogen regulator, comprising: an upper chamber (50) in which a constant internal pressure is generated by compressed air; a lower chamber (60) connected to the upper chamber (50) through an orifice structure, in which a relief valve is configured in an intermediate region between the upper chamber (50) and the lower chamber (60) connected by the orifice structure so that the internal pressures of the two chambers are maintained at a constant pressure ratio, thereby providing a constant buffering force proportional to the pressure of a low-pressure output unit (30) during a vertical movement of a pressure control spring (40) for pressure control, thereby enabling a stable constant pressure output even under rapid pressure fluctuations and ensuring that the pressure inside the upper chamber (50) is maintained constant. Accordingly, the present invention has the effect that, when pressure is controlled by the hydrogen regulator, the output pressure of a fluid can be maintained constant even when abrupt pressure changes occur.

Description

Hydrogen regulator with damping structure

[0001] The present invention relates to a hydrogen regulator having a damping structure that allows a fluid input at high pressure to be constantly lowered and output at low pressure even when there is a sudden change in pressure.

[0002] Pressure regulators typically maintain output pressure within a constant range, regardless of input pressure fluctuations. They are utilized in a variety of industries, including the chemical, oil refining, and gas industries. For example, fuel cell vehicles utilize high-pressure tanks to increase driving range, making high-pressure regulators essential for reducing fuel pressure.

[0003] In particular, for automotive regulators, a compact and lightweight structure while maintaining operational reliability and durability is one of the important design factors.

[0004] Since these regulators have a risk of unstable output pressure when there is a rapid pressure change, it is important to ensure that the compressed air flowing into the input section is always regulated to a constant pressure and output to the output section.

[0005] [Prior Art Literature]

[0006] [Patent Document]

[0007] Domestic Patent Publication No. 10-2022-0033893, 'High-Pressure Regulator for Hydrogen'

[0008] Accordingly, the purpose of the present invention is to provide a hydrogen regulator having a damping structure that allows the output pressure of a fluid to be maintained constant even when there is a rapid pressure change in the hydrogen regulator.

[0009] The present invention according to the above purpose is characterized by comprising a hydrogen regulator comprising an upper chamber (50) in which a constant pressure is generated inside by compressed air, a lower chamber (60) connected to the upper chamber (50) by an orifice structure, and a relief valve configured in the middle connected by the orifice structure so that the internal pressures of the upper chamber (50) and the lower chamber (60) are maintained at a constant pressure ratio, and a pressure control spring (40) for pressure control provides a constant buffering force proportional to the pressure of the low-pressure output unit (30) when it moves up and down, so that a constant pressure can be output even in the event of a sudden pressure change, thereby allowing the internal pressure of the upper chamber (50) to be maintained constant.

[0010] In addition, the upper chamber (50) is characterized in that it is configured to be sealed by a sealing portion (70) to ensure that the internal pressure is maintained constant.

[0011] The present invention has the effect of maintaining the output pressure of a fluid constant even when the pressure changes rapidly during pressure control by a hydrogen regulator.

[0012] FIG. 1 is a drawing showing the configuration of a hydrogen regulator having a damping structure according to an embodiment of the present invention;

[0013] FIG. 2 is a cross-sectional view of a hydrogen regulator having a damping structure according to an embodiment of the present invention.

[0014] Hereinafter, a preferred embodiment of the present invention will be described in detail with reference to the attached drawings.

[0015] FIG. 1 is a drawing showing the configuration of a hydrogen regulator having a damping structure according to an embodiment of the present invention, and FIG. 2 is a cross-sectional view showing the internal configuration.

[0016] The hydrogen regulator having the damping structure of the present invention is composed of an upper chamber (50) in which a constant pressure is generated inside by compressed air, a lower chamber (60) connected to the upper chamber (50) by an orifice structure, and a relief valve configured to maintain the internal pressure of the upper chamber (50) and the lower chamber (60) at a constant pressure ratio so that a constant buffering force proportional to the pressure of the low-pressure output unit (30) is provided during the up-and-down movement of the pressure control spring (40) for pressure control so that a constant pressure can be output even in the event of a sudden pressure change, thereby allowing the internal pressure of the upper chamber (50) to be maintained constant.

[0017] In the regulator of the present invention, a pressure drop occurs as the high pressure supplied through the high pressure input section (20) passes through the orifice structure formed inside the body (10), and at this time, the pressure is adjusted to the desired pressure by the up-and-down movement of the pressure control spring (40) installed at the top, and then output through the low pressure output section (30).

[0018] When a sudden change in pressure occurs due to an external factor during pressure control output by the up-and-down movement of the pressure control spring (40), the pressure of the fluid output through the low-pressure output unit (30) becomes unstable, and this may occur because the pressure control spring (40) does not operate normally due to the sudden change in pressure.

[0019] To solve this problem, the present invention forms an upper chamber (50) and a lower chamber (60) to have a buffering force to respond to rapid pressure changes, so that even if a rapid pressure change occurs during the up-and-down operation of the pressure regulating spring (40), the up-and-down operation of the pressure regulating spring (40) is not affected by the buffering force of the upper chamber (50).

[0020] When the pressure part (11) installed on the upper part of the body (10) is pressed to control the pressure of the fluid, the upper pressing plate (12) installed on the lower part is pressed, thereby compressing the pressure control spring (40).

[0021] As the pressure regulating spring (40) is compressed, the lower support plate (13) installed at the bottom of the pressure regulating spring (40) is pressed downward, and the vertical movement shaft (14) installed at the depth of the body (10) moves up and down, and the high-pressure fluid introduced through the high-pressure input unit (20) passes through the body (10), causing a pressure drop and being output through the low-pressure output unit (30).

[0022] At this time, the lower support plate (13) that moves the vertical axis (14) by the up-and-down operation of the pressure control spring (40) is installed to be sealed by a sealing part (70) so that an upper chamber (50) is formed in which the internal pressure is maintained at a constant level, so that the upper chamber (50) alleviates the impact caused by a sudden pressure change, thereby allowing the vertical axis (14) to be pressed at a constant level by the lower support plate (13).

[0023] That is, by buffering the rapid up-and-down movement of the vertical axis (14) due to rapid pressure increase by the upper chamber (50), the pressure drop of the fluid can be controlled to be always constant.

[0024]

[0025] While the above description of the present invention has described specific embodiments, various modifications can be made without departing from the scope of the present invention. Therefore, the scope of the present invention should not be defined by the described embodiments, but by the claims and their equivalents.

Claims

1. In the hydrogen regulator, An upper chamber (50) in which a constant pressure is generated inside by compressed air, A hydrogen regulator having a damping structure, characterized in that the pressure inside the upper chamber (50) is maintained at a constant pressure ratio by connecting the upper chamber (50) and the lower chamber (60) with an orifice structure in the middle, and a relief valve is configured to provide a constant buffering force proportional to the pressure of the low-pressure output unit (30) when the pressure control spring (40) for pressure control moves up and down, so that the pressure can be output at a constant pressure even in the event of a sudden pressure change, and the lower chamber (60) is configured so that the pressure inside the upper chamber (50) can be maintained at a constant level.

2. In paragraph 1, A hydrogen regulator having a damping structure characterized in that the upper chamber (50) is configured to be sealed by a sealing portion (70) to ensure that the internal pressure is maintained constant.

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