Gas pressure measure device of gas-tank

Abstract

An invention relating to a fluid pressure control module is disclosed. The disclosed fluid pressure control module is characterized by comprising: a body having an inlet port formed on one side to receive fluid and a plurality of outlet ports formed on the other side to guide the discharge of fluid; a connecting passage formed inside the body to connect the inlet port and the outlet ports to allow the transfer of fluid; a discharge pressure gauge connected to the plurality of outlet ports to detect the pressure of the discharged fluid; a shut-off valve unit provided in the body to be connected to the connecting passage and to control the transfer of fluid from the inlet port side to the outlet port side by an external force or an external signal; and an exhaust unit fixed to the body while connected to the connecting passage to allow the discharge of fluid inside the connecting passage when the internal pressure of the connecting passage exceeds a set value.

Description

Technology Field

[0001] The present invention relates to a fluid pressure control module, and more specifically, to a gas controller connected to a gas tank that detects the pressure of the gas by transferring the gas from the gas tank to the discharge pressure gauge side through the switching of a ball valve, protects the discharge pressure gauge by exhausting through a relief valve when high pressure is applied, reduces volume, purchase costs, and maintenance costs compared to equipment that independently provides a ball valve and a relief valve by simultaneously equipping the body with a ball valve and a relief valve, and the fluid pressure control module is installed by inserting the relief valve in a cartridge manner into a branch passage of the body to discharge the fluid to the outside when an overpressure exceeding the set pressure occurs in the fluid flow path for pressure measurement. Background Technology

[0002] In general, at industrial sites such as petrochemical plants or thermal power plants, facilities are installed for transporting or storing high-temperature, high-pressure steam, gas, liquid, or gas. In such facilities, safety valves are essential to be installed so that when the pressure inside the storage tank, pressure vessel, or transport pipeline rises above a set pressure, the valve opens to discharge the liquid or gas inside, and when the pressure falls below the set pressure, it closes again, thereby preventing safety accidents and industrial accidents such as explosions and enabling continuous operation of the facilities through stable operation of the production process.

[0003] Such safety valves include safety valves primarily used when handling steam, safety relief valves used when handling gases and liquids such as gas, steam, and vapor, and pilot type relief valves used for the same purpose as safety relief valves.

[0004] As for related technology, Korean Registered Patent Publication No. 10-1151227 (Title of invention: Overpressure prevention pilot valve) has been proposed.

[0005] The technical configuration described above is provided as background technology to aid in understanding the present invention and does not constitute prior art widely known in the technical field to which the present invention belongs. The problem to be solved

[0006] Conventional safety valves, such as safety relief valves and pilot-type relief valves, are manufactured separately for gas and liquid applications, which presents the inconvenience of having to select and use a valve suitable for the intended use. Additionally, as ball valves and relief valves are separately provided and installed as safety valves on gas transfer lines, there is a problem of increased purchasing and maintenance costs.

[0007] Therefore, there is a need to improve this.

[0008] The present invention has been devised to improve the aforementioned problems and aims to provide a fluid pressure control module that detects gas pressure by transferring gas from the gas tank to the discharge pressure gauge side through the switching of a ball valve as a gas controller connected to a gas tank, protects the discharge pressure gauge by exhausting through a relief valve when high pressure is applied, and reduces volume, purchase costs, and maintenance costs compared to equipment equipped with a ball valve and a relief valve independently by simultaneously equipping the body with a ball valve and a relief valve.

[0009] The present invention aims to provide a pressure control module for a fluid to be concentrated in a body by inserting and mounting a relief valve in a cartridge manner into a branch passage of the body to discharge the fluid to the outside when an overpressure exceeding the set pressure occurs in the fluid flow path for pressure measurement. means of solving the problem

[0010] A fluid pressure control module according to the present invention comprises: a body having an inlet port formed on one side to receive fluid and a plurality of outlet ports formed on the other side to guide the discharge of said fluid; a connecting passage formed inside the body to connect the inlet port and the outlet ports to allow the transfer of said fluid; a discharge pressure gauge connected together to the plurality of outlet ports to detect the pressure of said fluid being discharged; a shut-off valve unit provided in the body to be connected to the connecting passage, which controls the transfer of said fluid from the inlet port side to the outlet port side by an external force or an external signal; and an exhaust unit fixed to the body while connected to the connecting passage to allow the discharge of said fluid inside the connecting passage when the internal pressure of said connecting passage exceeds a set value.

[0011] The above connecting passage includes: a first passage extending in a straight line for a set length from the inlet port in the direction of one side inside the body; a second passage extending in a straight line for the corresponding length while changing direction from the first passage so as to be inclined with respect to the central axis of the first passage; and a third passage extending in a straight line parallel to the first passage while changing direction from the second passage in a direction perpendicular to the central axis of the second passage, and connecting a plurality of the outlet ports.

[0012] The above-mentioned shut-off valve unit is installed in the body to be connected to the connection portion between the first passage and the second passage, and the above-mentioned exhaust unit is installed in the body to be connected to the connection portion between the second passage and the third passage.

[0013] The above-described shut-off valve unit comprises: a chamber space formed at a set position of the connecting passage inside the body; a switching ball rotatably provided by an external force while in contact with the inner surface of the chamber space, and having a first opening and a second opening formed by connecting them via an internal passage to allow the passage of the fluid; a stem fixedly connected to the switching ball and protruding outward from the body while being inserted into an insertion hole formed to open the chamber space to the outside of the body; a rotary guide fixedly mounted inside the insertion hole and axially inserting the stem rotatably; and a holder fixed to the body that supports the stem by axially inserting it while wrapping a portion of the outer circumferential surface of the rotary guide located inside the insertion hole in the axial direction. and includes a lever fixed to the stem protruding outward from the body to forcibly rotate the stem and the switching ball in one direction and the other direction so as to receive the fluid through the first opening and guide it to be discharged to the discharge pressure gauge side through the second opening, or to block the flow of the fluid in the connecting passage.

[0014] The above-described shut-off valve unit includes an inner packing material disposed between the inner surface of the rotary guide and the outer circumferential surface of the stem; and an outer packing material disposed between the outer surface of the rotary guide and the body corresponding to the inner surface of the insertion hole portion.

[0015] The body is characterized by forming a second branch passage that extends from the connecting passage to the outside of the body and forming an exhaust passage connected to the second branch passage to the outside of the body.

[0016] The exhaust unit comprises: a joint member that is fixed to the body while partially inserted into the second branch passage and is open to both sides along the axial direction, and forms an exhaust guide hole portion on its circumference that opens toward the exhaust passage; a shaft inserted into the joint member; a disc provided on one side along the axial direction of the shaft, which opens and closes a bottleneck section on the inner side of the second branch passage and opens and closes the exhaust guide hole portion according to its position on the inner side of the joint member; a finishing member coupled to the other side of the joint member that protrudes to the outside of the body; and an elastic spring that elastically supports the shaft on one side while having its other side elastically supported by the finishing member.

[0017] The exhaust unit includes a packing ring provided on the outer circumference of the disk. Effects of the invention

[0018] As explained above, unlike the prior art, the fluid pressure control module according to the present invention is a gas controller connected to a gas tank, capable of detecting gas pressure by transferring gas from the gas tank to the discharge pressure gauge side through the switching of a ball valve, and can protect the discharge pressure gauge by exhausting through a relief valve when high pressure is applied, and by simultaneously equipping a ball valve and a relief valve in the body, it is possible to reduce volume, purchase costs, and maintenance costs compared to equipment equipped with ball valves and relief valves independently.

[0019] The present invention allows a relief valve to be concentrated in the body by inserting and mounting it in a cartridge manner into a branch passage of the body so that when an overpressure exceeding the set pressure occurs in a fluid flow path for pressure measurement, the fluid is discharged to the outside. Brief explanation of the drawing

[0020] FIG. 1 is a perspective view of a fluid pressure control module according to one embodiment of the present invention. FIG. 2 is a rear perspective view of a fluid pressure control module according to one embodiment of the present invention. FIG. 3 is an exploded perspective view of a fluid pressure control module according to one embodiment of the present invention. FIG. 4 is an exploded perspective view of a key part of an interruption valve unit in a fluid pressure control module according to one embodiment of the present invention. Figure 5 is a cross-sectional view along line AA of Figure 1. Figure 6 is a cross-sectional view along line BB of Figure 1. FIG. 7 is a diagram showing the flow of fluid according to the pressure measurement of a fluid pressure control module according to one embodiment of the present invention. FIG. 8 is a diagram showing the flow of fluid according to the exhaust of a fluid pressure control module according to one embodiment of the present invention. FIG. 9 is an enlarged exploded perspective view of an exhaust unit of a fluid pressure control module according to one embodiment of the present invention. FIG. 10 is an enlarged rear exploded perspective view of an exhaust unit of a fluid pressure control module according to one embodiment of the present invention. Specific details for implementing the invention

[0021] Hereinafter, an embodiment of a fluid pressure control module according to the present invention will be described with reference to the attached drawings. In this process, the thickness of lines or the size of components depicted in the drawings may be exaggerated for clarity and convenience of explanation. Furthermore, the terms described below are defined considering their functions in the present invention, and these may vary depending on the intention or convention of the user or operator. Therefore, the definitions of these terms should be based on the content throughout this specification.

[0022] FIG. 1 is a perspective view of a fluid pressure control module according to one embodiment of the present invention, and FIG. 2 is a rear perspective view of a fluid pressure control module according to one embodiment of the present invention.

[0023] FIG. 3 is an exploded perspective view of a fluid pressure control module according to one embodiment of the present invention, and FIG. 4 is an exploded perspective view of a key part of an interruption valve unit among the fluid pressure control module according to one embodiment of the present invention.

[0024] Figure 5 is a cross-sectional view along line AA of Figure 1, and Figure 6 is a cross-sectional view along line BB of Figure 1.

[0025] FIG. 7 is a diagram showing the flow of fluid according to pressure measurement of a fluid pressure control module according to one embodiment of the present invention, and FIG. 8 is a diagram showing the flow of fluid according to exhaust of a fluid pressure control module according to one embodiment of the present invention.

[0026] FIG. 9 is an enlarged exploded perspective view of an exhaust unit of a fluid pressure control module according to one embodiment of the present invention, and FIG. 10 is an enlarged rear exploded perspective view of an exhaust unit of a fluid pressure control module according to one embodiment of the present invention.

[0027] Referring to FIGS. 1 to 10, a fluid pressure control module (100) according to one embodiment of the present invention includes a body (200), a connecting passage (300), a discharge pressure gauge (400), an interruption valve unit (500), and an exhaust unit (600).

[0028] The body (200) forms the outer shape of the pressure control module (100) according to the present invention and can be applied in various shapes and various materials. For convenience, the body (200) is illustrated as having a rectangular shape.

[0029] At this time, the body (200) is connected to a tank (10) that stores fluid, particularly gas, and is formed to receive fluid (gas) from the tank (10) for pressure measurement.

[0030] To this end, the body (200) may include an inlet port (210) for receiving fluid and an outlet port (220) for discharging fluid. A connecting passage (300) may be formed inside the body (200) to connect the inlet port (210) and the outlet port (220).

[0031] The inlet port (210) is formed to be open to one side of the body (200), and the outlet port (220) is formed to be open to the other side of the body (200).

[0032] In particular, the inlet port (210) and outlet port (220) can be formed in various ways, such as a hole shape formed to be open at a set position on the circumference of the body (200), or a port or nozzle provided to be protruded at a set position.

[0033] And, the connecting passage (300) is formed inside the body (200), one side is connected to the inlet port (210), and the other side is connected to the outlet port (220). Thus, fluid flowing into the inlet port (210) can be discharged through the outlet port (220).

[0034] In addition, the discharge pressure gauge (400) is connected to the outlet port (220) of the body (200) to detect the pressure of the discharged fluid. Thus, the pressure of the fluid inside the tank (10) can be detected through the discharge pressure gauge (400). Of course, the discharge pressure gauge (400) can be fixedly connected to the outlet port (220) of the body (200) in various ways.

[0035] At this time, one discharge pressure gauge (400) or multiple gauges may be provided in a one-to-one correspondence with the outlet port (220) to ensure the reliability of the fluid pressure value.

[0036] The shut-off valve unit (500) is provided in the body (200) to be connected to the connecting passage (300) and serves to stop the transfer of fluid from the inlet port (210) side to the outlet port (220) side by an external force or external signal. In addition, the shut-off valve unit (500) serves to guide the fluid remaining in the connecting passage (300) to be discharged (exhausted) to the outside of the body (200) after pressure detection is completed.

[0037] And, the exhaust unit (600) is fixed to the body (200) while connected to the connecting passage (300), and serves to allow the fluid inside the connecting passage (300) to be discharged when the internal pressure of the connecting passage (300) exceeds a set value.

[0038] In particular, the connecting passage (300) may include a first passage (310), a second passage (320), and a third passage (330).

[0039] The first passage (310) is a channel that extends in a straight line for a set length from the inlet port (210) toward one side of the interior of the body (200). At this time, the inner end of the body (200) of the first passage (310) is blocked. Of course, the first passage (310) can be formed in various shapes and trajectories.

[0040] And, the second passage (320) is extended in a straight line for the corresponding length while diverting from the first passage (310) so as to be inclined with respect to the central axis of the first passage (310).

[0041] The shut-off valve unit (500) may be located in the first passage (310) or the second passage (320), but is provided at the connection point between the first passage (310) and the second passage (320). For convenience, the central axis of the second passage (320) is arranged perpendicular to the central axis of the first passage (310).

[0042] In addition, the third passage (330) is extended in a straight line parallel to the first passage (310) while being diverted from the second passage (320) so as to be inclined with respect to the central axis of the second passage (320), and connects a plurality of outlet ports (220). For convenience, the central axis of the second passage (320) is positioned perpendicular to the central axis of the second passage (320), and the first passage (310) and the third passage (330) are positioned parallel to each other.

[0043] Additionally, the exhaust unit (600) may be connected to the second passage (320) or the third passage (330), but for convenience, it is installed in the body (200) so as to be connected to the connection point between the second passage (320) and the third passage (330).

[0044] In other words, the first passage (310) can extend from the inlet port (210) into the interior of the body (200). The second passage (320) can be diverted from the first passage (310) and extended. The third passage (330) can be diverted from the second passage (320) and extended toward the outlet port (220).

[0045] The control valve unit (500) is installed in the body (200) so as to be connected to the connection part of the first passage (310) and the second passage (320), and the exhaust unit (600) is installed in the body (200) so as to be connected to the connection part of the second passage (320) and the third passage (330).

[0046] Meanwhile, the control valve unit (500) may include a chamber space (510), a switching ball (520), a stem (530), a rotary guide (535), a holder (540), and a lever (550).

[0047] The chamber space (510) is formed inside the body (200) at a set position of the connecting passage (300), particularly at the connection point between the first passage (310) and the second passage (320). Thus, the chamber space (510) connects the first passage (310) to one side and the second passage (320) to the other side. A switching ball (520) is provided to be rotatable by an external force while in contact with the inner surface of the chamber space (510), and the first opening (522) and the second opening (524) are connected to the internal passage (526) to allow the passage of fluid.

[0048] Thus, when the first opening (522) aligns with the first passage (310) and the second opening (524) aligns with the second passage (320), the fluid transferred from the tank (10) is filled into the third passage (330) through the first passage (310), the internal passage (526), ​​and the second passage (320), and internal pressure detection becomes possible.

[0049] Additionally, as the switching ball (520) rotates, if the first opening (522) is misaligned with the first passage (310) and the second opening (524) is misaligned with the second passage (320), the fluid being transported from the tank (10) cannot enter the internal passage (526).

[0050] At this time, in order to prevent increased friction and rapid wear caused by the switching ball (520) coming into direct contact with the inner surface of the chamber space (510), the chamber space (510) may be provided with a protective member (512) on the inside. Thus, the switching ball (520), which is approximately spherical in shape, is protected by rotating while in contact with the protective member (512). The protective member (512) may be made of various materials and shapes having a low coefficient of friction.

[0051] The stem (530) is fixedly connected to the switching ball (520) and extends outwardly to protrude from the body (200). The body (200) forms an insertion hole (230) to guide the stem (530) to be inserted from the outside inward. At this time, the stem (530) is inserted into the insertion hole (230), which is formed to open the chamber space (510) to the outside of the body (200).

[0052] The rotary guide (535) is fixedly mounted on the inner side of the insertion hole (230) and rotatably inserts the stem (530). At this time, the rotary guide (535) is made of a material that has rigidity and minimizes frictional force against the stem (530), and is formed in the shape of a sleeve.

[0053] The holder (540) serves to maintain the position of the stem (530) axially inserted into the body (200) through the insertion hole (230). Alternatively, the holder (540) can axially insert the stem (530) to prevent an increase in friction and wear caused by the stem (530) directly contacting the inner surface of the insertion hole (230).

[0054] At this time, the holder (540) supports the stem (530) by axially inserting it while wrapping a portion of the outer circumference in the axial direction of the rotary guide (535) located inside the insertion hole (230), and is fixed to the body (200). The holder (540) is provided to be fixedly positioned inside the insertion hole (230) and can be applied in various shapes and various materials.

[0055] The lever (550) is fixed to a stem (530) protruding outward from the body (200) to force rotation of the stem (530) and the switching ball (520) in one direction and the other direction, so as to receive fluid through the first opening (522) and guide discharge to the discharge pressure gauge (400) side through the second opening (524), or to block the flow of fluid in the connecting passage (300).

[0056] At this time, the lever (550) can be formed in various shapes and can be rotated in a set direction by manual operation or automatic operation. Of course, the lever (550) can be deformed into various shapes.

[0057] In particular, the holder (540) inserted into the insertion hole (230) is protected by having its upper portion exposed to the outside of the body (200) covered by a cap (552). The cap (552) securely connects the lever (550), and the stem (530) can be detachably connected to the lever (550). Thus, when the lever (550) rotates, the cap (552) and the stem (530) rotate in the direction of rotation of the lever (550).

[0058] Additionally, after the internal pressure of the connecting passage (300), particularly the third passage (330), is measured, and the inlet port (210) connected to the tank (10) is closed, the fluid in the connecting passage (300) is guided to be discharged (exhausted) to the outside of the body (200).

[0059] To this end, the shut-off valve unit (500) may include a first branch passage (560) and a connector (570).

[0060] The first branch passage (560) extends from the chamber space (510), particularly at the connection point between the first passage (310) and the second passage (320). The first branch passage (560) is opened to the outside of the body (200).

[0061] In addition, the connector (570) is provided in the first branch passage (560) and guides the fluid inside the connecting passage (300), particularly the second passage (320) and the third passage (330), to be discharged to the outside of the body (200) through the rotation setting of the switching ball (520). At this time, the connector (570) can be applied as a check valve. As a result, the internal pressure of the connecting passage (300) becomes approximately equal to normal pressure.

[0062] In other words, when the lever (550) is rotated so that the first opening (522) of the switching ball (520) aligns with the first branch passage (560) and the second opening (524) of the switching ball (520) aligns with the second passage (320), the fluid remaining in the second passage (320) and the third passage (330) is guided to be discharged to the outside of the body (200) through the internal passage (526) and the connector (570).

[0063] Additionally, the control valve unit (500) may include an inner packing material (580) and an outer packing material (590).

[0064] The inner packing material (580) is positioned between the inner surface of the rotary guide (535) and the outer circumferential surface of the stem (530) to prevent fluid from leaking through the gap between the rotary guide (535) and the stem (530). At this time, the inner packing material (580) is seated one-to-one in an inner seating groove formed in one or more places on the inner surface of the rotary guide (535) and is formed in the shape of a circular ring.

[0065] The outer packing material (590) is placed between the outer surface of the rotary guide (535) and the body (200) corresponding to the inner surface of the insertion hole (230). Thus, the outer packing material (590) prevents fluid from leaking through the gap between the rotary guide (535) and the inner circumferential surface of the insertion hole (230). At this time, the outer packing material (590) is seated one-to-one in one or more outer seating grooves formed on the outer surface of the rotary guide (535) and is formed in the shape of a circular ring.

[0066] A second branch passage (610) may be formed in the body (200). The second branch passage (610) may extend to the outside of the body (200) at the connection point between the second passage (320) and the third passage (330). The second branch passage (610) may function as a passage that directly transmits the excess pressure of the connecting passage (300) to the exhaust unit (600).

[0067] The exhaust unit (600) can be inserted and mounted in the second branch passage (610). Since the exhaust unit (600) can directly receive the pressure generated at the connection point between the second passage (320) and the third passage (330), it can discharge fluid to the outside before the excess pressure is transmitted to the outlet port (220) or the discharge pressure gauge (400).

[0068] That is, when the internal pressure caused by the fluid acting on the connecting passage (300), particularly the second passage (320) and the third passage (330), exceeds the set value, the exhaust unit (600) is opened to discharge the fluid to the outside of the body (200).

[0069] At this time, if the internal pressure of the second passage (320) and the third passage (330) is within the set value, the exhaust unit (600) can be set to close naturally or automatically.

[0070] Meanwhile, the exhaust unit (600) may include a joint member (621), a shaft (622), a disc (623), a finishing member (624), an elastic spring (625), and a packing ring (627).

[0071] At this time, the body (200) forms a second branch passage (610) that extends to the outside of the body (200) at the connection point of the connecting passage (300), particularly the second passage (320) and the third passage (330).

[0072] In addition, the body (200) forms an exhaust passage (612) connected to the second branch passage (610) so as to be open to the outside of the body (200).

[0073] The joint member (621) is fixed to the body (200) with a portion of the second branch passage (610) inserted axially, and forms an exhaust guide hole (626) at a corresponding location on the circumferential surface that is open to both sides along the axial direction and opens toward the exhaust passage (612). The exhaust guide hole (626) may be formed as one or multiple holes in the circumferential direction in the joint member (621).

[0074] Of course, the joint member (621) can be formed in various shapes.

[0075] The shaft (622) is axially inserted into a joint member (621) that is open on both sides. The shaft (622) can be made of various materials having rigidity.

[0076] A disc (623) is provided on one side along the axial direction of the shaft (622). At this time, the disc (623) may be manufactured integrally with the shaft (622) or may be detachably coupled to the shaft (622).

[0077] In addition, the disc (623) opens and closes the bottleneck section on the inner side of the second branch passage (610) and opens and closes the exhaust guide hole section (626) on the inner side of the joint member (621) according to the position.

[0078] That is, the disk (623) is moved forward in the second branch passage (610) to block the bottleneck section of the second branch passage (610), thereby preventing fluid from leaking out through the second branch passage (610) from the second passage (320) and the third passage (330).

[0079] And, when the disk (623) moves backward due to internal overpressure in the second branch passage (610), it switches the bottleneck section of the second branch passage (610) and the exhaust guide hole section (626) to an open state. Accordingly, the fluid in the connecting passage (300) is exhausted to the exhaust passage (612) through the second branch passage (610) and the exhaust guide hole section (626).

[0080] At this time, the disk (623) is formed in a conical shape so as to block the bottleneck section of the second branch passage (610). Of course, the disk (623) can be formed in various shapes.

[0081] The end member (624) blocks the other end of the shaft (622) that protrudes outward from the joint member (621). To this end, the end member (624) can be detachably coupled to the joint member (621). Of course, the end member (624) can be formed in various shapes.

[0082] The elastic spring (625) elastically supports the shaft (622) on one side inside the joint member (621), while the other side is elastically supported by the end member (624).

[0083] So, when the fluid pressure of the connecting passage (300) exceeds the set value, the disk (623) and the shaft (622) are pushed outward from the body (200), and the elastic spring (625) is elastically compressed.

[0084] Conversely, when the fluid pressure of the connecting passage (300) is below the set value, the elastic spring (625) elastically supports at least one of the shaft (622) and the disk (623) so that the disk (623) maintains a state in which it blocks the bottleneck section of the second branch passage (610).

[0085] In addition, the packing ring (627) is provided on the outer circumference of the disk (623) facing the bottleneck section of the second branch passage (610). Thus, the sealing (packing) reliability of the disk (623), which is elastically supported by the elastic spring (625), for the corresponding area of ​​the second branch passage (610) can be increased.

[0086] Of course, the packing ring (627) can be formed in various shapes in cross-section and can be made of various materials.

[0087] In addition, the body (200) may be formed with a maintenance hole (242) that is aligned with the second passage (320) and is open to the outside for maintenance of the switching ball (520). And, when the maintenance hole (242) of the body (200) is not in use, the maintenance hole (242) may be sealed by being blocked by a packing plug (244).

[0088] Accordingly, the fluid pressure control module (100) according to the present invention can reduce volume, purchase costs, and maintenance costs compared to equipment that independently provides a ball valve and a relief valve by simultaneously equipping a body (200) with a ball valve interruption valve unit (500) and an exhaust unit (600) that functions as a relief valve.

[0089] Although the present invention has been described with reference to the embodiments illustrated in the drawings, this is merely illustrative, and those skilled in the art will understand that various modifications and equivalent alternative embodiments are possible therefrom. Accordingly, the true technical scope of protection of the present invention should be determined by the claims below. Explanation of the symbols

[0090] 100: Pressure control module 200: Body 210: Inlet port 220: Outlet port 230: Insertion hole 242: Maintenance hole 244: Packing plug 300: Connecting passage 310: Passage 1 320: Passage 2 330: Passage 3 400: Discharge pressure gauge 500: Intermittent valve unit 510: Chamber space 512: Protective member 520: Switching ball 522: 1st Fart 524: 2nd Fart 526: Internal passage 530: Stem 535: Rotary Guide 540: Holder 550: Lever 552: Cap 560: Branch 1 Pathway 570: Connector 580: Inner packing material 590: Outer packing material 600: Exhaust unit 610: Second branch passage 612: Exhaust passage 621: Joint member 622: Shaft 623: Disc 624: Finishing member 625: Elastic spring 626: Exhaust guide hole 627: Packing ring

Claims

Claim 1 A fluid pressure control module characterized by comprising: a body having an inlet port formed on one side to receive fluid and a plurality of outlet ports formed on the other side to guide the discharge of said fluid; a connecting passage formed inside the body to connect the inlet port and the outlet ports to allow the transfer of said fluid; a discharge pressure gauge connected together to the plurality of outlet ports to detect the pressure of said fluid being discharged; a shut-off valve unit provided in the body to be connected to the connecting passage, which controls the transfer of said fluid from the inlet port side to the outlet port side by an external force or an external signal; and an exhaust unit fixed to the body while connected to the connecting passage to allow the discharge of said fluid inside the connecting passage when the internal pressure of said connecting passage exceeds a set value. Claim 2 A fluid pressure control module according to claim 1, wherein the connecting passage comprises: a first passage extending in a straight line for a set length from the inlet port toward one side of the interior of the body; a second passage extending in a straight line for the corresponding length while diverting from the first passage so as to be inclined with respect to the central axis of the first passage; and a third passage extending in a straight line parallel to the first passage while diverting from the second passage in a direction perpendicular to the central axis of the second passage, and connecting a plurality of the outlet ports. Claim 3 A fluid pressure control module according to claim 2, characterized in that the interruption valve unit is installed in the body to be connected to the connection portion between the first passage and the second passage, and the exhaust unit is installed in the body to be connected to the connection portion between the second passage and the third passage. Claim 4 In any one of claims 1 to 3, the shut-off valve unit comprises: a chamber space formed at a set position of the connecting passage inside the body; a switching ball rotatably provided by an external force while in contact with the inner surface of the chamber space, and having a first opening and a second opening formed by connecting them to an internal passage to allow the passage of the fluid; a stem fixedly connected to the switching ball and protruding outward from the body while being inserted into an insertion hole formed to open the chamber space to the outside of the body; a rotary guide fixedly mounted inside the insertion hole and axially inserting the stem rotatably; and a holder fixed to the body that supports the stem by axially inserting it while wrapping a portion of the outer circumferential surface of the rotary guide located inside the insertion hole in the axial direction. A fluid pressure control module characterized by including a lever fixed to a stem protruding outwardly from the body to forcibly rotate the stem and the switching ball in one direction and the other direction, so as to receive the fluid through the first opening and guide it to be discharged toward the discharge pressure gauge through the second opening, or to block the flow of the fluid in the connecting passage. Claim 5 A fluid pressure control module according to claim 4, wherein the interruption valve unit comprises: an inner packing material disposed between the inner surface of the rotary guide and the outer circumferential surface of the stem; and an outer packing material disposed between the outer surface of the rotary guide and the body corresponding to the inner surface of the insertion hole portion. Claim 6 In any one of claims 1 to 3, the body forms a second branch passage extending from the connecting passage to the outside of the body, and forms an exhaust passage connected to the second branch passage to the outside of the body; the exhaust unit comprises: a joint member fixed to the body while partially axially inserted into the second branch passage, open to both sides along the axial direction, and forming an exhaust guide hole portion on its circumferential surface that opens toward the exhaust passage; a shaft axially inserted into the joint member; a disc provided on one side along the axial direction of the shaft, opening and closing a bottleneck section on the inside of the second branch passage, and opening and closing the exhaust guide hole portion according to its position on the inside of the joint member; and a finishing member coupled to the other side of the joint member protruding to the outside of the body. A fluid pressure control module characterized by including an elastic spring, wherein one side of which is elastically supported by the other side of the finishing member, and one side of which elastically supports the shaft inside the joint member. Claim 7 A fluid pressure control module according to claim 6, wherein the exhaust unit comprises a packing ring provided on the outer circumferential surface of the disk.

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