KR100684119B1 - Safety valve - Google Patents

Abstract

A safety valve is provided to prevent shaking and twist of the safety valve when the safety valve moves by sliding a plurality of guide projections along an inner periphery of a passage. A safety valve includes a valve body(10), a valve apparatus(40), and a spring(30). The valve body includes a base(12), and frames(15). The base has a cylindrical shape having a passage passing therethrough. The frames extend to a predetermined height from each side of the base to be connected to each other. The valve apparatus has an adjustment bolt detachably coupled with a center thereof, and selectively adheres the bolt to one side of the base to open and close the passage. The spring passes through the adjustment bolt to be connected to the bolt at its one end, and is connected to an upper end of the frame at the other end. The frame has an inner space in which the valve apparatus is resiliently supported by the spring in a center direction of the frame.

Description

Safety valve

1 is a cross-sectional view showing a conventional safety valve.

2 is a perspective view showing a safety valve according to a first embodiment of the present invention.

3 is a state sectional view showing an installation state of a safety valve according to a first embodiment of the present invention.

4 is a perspective view showing a safety valve according to a second embodiment of the present invention.

5 is a state sectional view showing an installation state of a safety valve according to a second embodiment of the present invention.

6 is a state sectional view showing an installation state of a safety valve according to a third embodiment of the present invention.

<Explanation of symbols for the main parts of the drawings>

10,110: valve body 12: base

15: frame 20,120: passage section

30,130: spring 40,140: valve arrangement

45: guide protrusion 50,150: adjusting bolt

60: spacer

The present invention relates to a safety valve, and more particularly to a safety valve that is compatible with a multi-purpose.

Generally, safety valves are used to prevent damage to the product due to an increase in pressure inside the product with a given volume, such as a tube or tube.

1 is a cross-sectional view showing a conventional safety valve.

As shown in FIG. 1, a valve body 110 having a passage part 120 formed therein is connected to one end of the housing 100 having a space formed therein so as to be in contact with a fluid inside the product. , The other end is provided with a control bolt 150 is screwed.

And, one end of the adjustment bolt 150 is connected to the support block 160, one end of the spring 130 is fixed to one side of the support block 160.

In addition, the other end of the spring 130 is coupled to the valve device 140, the spring 130 is to support the valve device 140 in a shot.

In addition, one side of the valve device 140 which is elastically supported by the spring 130 is in contact with one side of the valve body 110 and the passage part 120 is sealed.

Here, when the fluid pressure inside the product increases, the fluid pressure is applied to one side of the valve device 140, and when the fluid pressure is greater than the elastic force of the spring 130, the spring 130 is contracted The valve device 140 is separated from the valve body 110. Therefore, the fluid inside the product is moved through the passage part 120 and the fluid is discharged to the outside through the discharge port 170 formed on the side of the housing 100.

However, the above-described conventional safety valve has the following problems.

First, the coil-shaped spring is in contact with one side of the valve device in the circumferential direction, the end of the spring is difficult to uniformly contact with one side of the valve device, due to the nature of the coil shape in order to contact the Even though the end of the spring is processed flat, in this case it is difficult to transfer a uniform elastic force due to the change of wire diameter. Therefore, when the valve device is opened by applying a pressure greater than the elastic force of the spring to the valve device, the compression force applied to the valve device by the spring is non-uniform, causing the shaking and torsion of the valve device to occur. there was.

Second, due to the shaking and twisting of the valve device, the operation of the valve device is not smooth, there was a problem that a lot of deviation occurs in controlling the flow rate of the fluid.

Third, due to the continuous and repetitive occurrence of the shaking phenomenon and the torsion, the center of the valve device is separated and the vibration of the valve device occurs, the vibration has a problem of generating noise.

In order to solve the above problems, an object of the present invention is to provide a safety valve that can be used for various purposes.

In order to achieve the above object, the present invention includes a base formed with a cylindrical portion penetrating through the central portion, and a frame extending from the one side of the base to a predetermined height, respectively, and extending ends thereof are connected to each other; A valve body formed; The control bolt is detachably coupled to the center portion, one side surface is selectively in close contact with one side of the base valve device for opening and closing the passage; And one end is connected to pass through the central portion of one side of the adjustment bolt, the other end provides a safety valve comprising a spring connected to the upper center portion of the frame facing the control bolt.

In addition, the valve device is elastically supported to move in the direction of the center of the frame by the spring on the inside of the frame, it is preferable that the space between the frame is separated from the valve device is formed.

In addition, it is preferable that a plurality of guide protrusions are formed on one side of the valve device so that a plurality of the protrusions protrude to a predetermined length so as to prevent shaking of the valve device, and each one side of the valve device comes into contact with the inner circumferential surface of the passage.

In addition, at least one gap adjusting device may be provided at one side of the base to be in contact with one surface of the valve device so that the gap between the valve device and the valve device is adjusted and restrained.

In addition, the adjustment bolt is preferably screwed with the valve device so that the position of the control bolt is changed in the vertical direction with the valve device to adjust the elastic force of the spring.

Hereinafter, with reference to the accompanying drawings, preferred embodiments of the present invention that can specifically realize the above object will be described.

2 is a perspective view showing a safety valve according to a first embodiment of the present invention, Figure 3 is a cross-sectional view showing a state of installation of the safety valve according to the first embodiment of the present invention.

As shown in Figures 2 and 3, the safety valve preferably comprises a valve body 10, a spring 30 and the valve device 40. Here, the passage portion 20 is formed on one side of the valve body 10, the spring 30 is connected to the other side. In addition, the passage part 20 is opened and closed by the valve device 40 connected to and operated at one side of the spring 30.

In detail, the valve body 10 comprises a base 12 and the frame 15, the base 12 is formed in a cylindrical shape formed on both sides of the flat.

In addition, a passage portion 20 is formed in a central portion of the base 12 so that the fluid can move, and the passage portion 20 is preferably formed in a cylindrical shape.

In addition, the frame 15 is formed at one side of the base 12 to include a side surface of the base 12 to form a predetermined space therein.

Here, the frame 15 protrudes from a point outside the passage part 20 formed on one side of the base 12 to a predetermined length and gently extends toward the center of the base 12. It is desirable to include a plurality of extensions 16. In addition, an end portion of each of the extension portions 16 is preferably connected on an extension line of the central axis of the base 12.

Here, the extension portion 16 is not limited to the number, but it is sufficient that the valve device 40 is detachable between the respective extension portions 16, and is formed in a pair in consideration of the external aesthetics. . Each of the extension parts 16 may be formed at predetermined intervals along the outer circumferential surface of one side of the base 12.

It is preferable that a reinforcement part 17 formed thicker than the thickness of the extension part 16 is formed at the center of the frame 15 formed by connecting the ends of each extension part 16. In addition, the connection hole 18 may be formed to penetrate through one side of the reinforcing part 17 facing the base 12.

On the other hand, a disk-shaped valve device 40 having a predetermined thickness is positioned outside the one side of the base 12 on which the frame 15 is formed.

Here, the outer diameter of the valve device 40 is preferably formed larger than the diameter of the passage portion 20, through which one side of the valve device 40 is in contact with one side of the base 12 The passage part 20 may be sealed.

In addition, one side surface of the valve device 40 in contact with the base 12 has a stepped protrusion (not shown) protruding a predetermined height at a diameter corresponding to the inner diameter of the passage portion 20 formed in the base 12. Can be further formed.

As a result, when the valve device 40 is in close contact with the base 12, the stepped portion is inserted into the passage part 20, so that the airtightness is further suppressed so that the movement of the fluid through the passage part 20 is further suppressed. Can be improved.

The through hole 42 is formed in the central portion of the valve device 40 in the axial direction of the valve device 40, and the thread is formed on the inner surface of the through hole 42.

And, the adjusting bolt 50 is screwed into the through hole 42, the adjusting bolt 50 is coupled to face the central portion of the spring 30, one side central portion of the adjusting bolt 50 It is preferable that the coupling hole 54 penetrated in the radial direction of the adjustment bolt 50 is formed.

Through this, one end of the spring 30 may be penetrated into the connection hole 18, and the other end of the spring 30 may be penetrated into the coupling hole 54.

Here, the spring 30 is preferably formed so that the contracting force is applied to move the valve device 40 toward the center of the frame (15).

In addition, the connection hole 18 and the coupling hole 54 to which both ends of the spring 30 are coupled are preferably positioned on an extension line of the central axis of the base 12.

Through this, the contracting force generated by the spring 30 may act as one point of the connection hole 18 and the coupling hole 54. In this way, the contracting force is not deflected and is always applied toward the center of the valve device 40, so that the valve device 40 can be moved without shaking and twisting.

Of course, one end of the spring 30 may be welded to the end of the reinforcing part 17 opposite to the adjusting bolt 50 to be coupled.

On the other hand, the adjustment bolt 50 is screwed is movable in the axial direction of the base 12 through the rotation, the distance between the connection hole 18 and the coupling hole 54 is variable the spring The elastic force of 30 can be adjusted.

In addition, it is preferable that at least one side central portion of the valve device 40 is formed with a step 44 having a predetermined height wider than an outer diameter of the adjusting bolt 50. Through this, the through hole 42 is formed to penetrate the valve device 40 and the step portion 44 can be extended in length, the screw of the through hole 42 and the adjustment bolt 50 The fastening area may be increased to prevent shaking of the adjusting bolt 50.

In addition, one side of the valve device 40 is preferably provided with a fixing nut 52 to be coupled to the control bolt 50, one side of the fixing nut 52 of the valve device 40 The adjustment bolt 50 can be fixed by being adjusted to contact one side.

Of course, the fixing nut 52 may be provided on both side surfaces of the valve device 40 so that the fastening of the adjustment bolt 50 is reinforced.

And, it is also possible to be formed so that the position of the reinforcing portion 17 and the adjustment bolt 50 is changed to each other. That is, a through hole is formed in the reinforcement part 17 in the axial direction of the base 12 so that an adjusting bolt is screwed into the through hole, and a reinforcing part is formed in the center of the valve device 40 so that the adjusting bolt is formed. Springs 30 may be connected to end portions of the reinforcement portions.

On the other hand, one side surface of the valve device 40 opposite to the passage portion 20 is formed with a plurality of guide protrusions 45 protruding to a predetermined length, the guide protrusions 45 are each guide protrusion ( The outer surface of 45 is preferably formed to contact the inner peripheral surface of the passage portion 20.

Through this, the guide protrusion 45 may slide without shaking in the passage part 20, and the valve device 40 may move in the axial direction of the passage part 20.

Here, the guide protrusion 45 is formed to a length such that the valve device 40 can be separated to the outside of the frame 15 without being separated from the passage portion 20 when the valve device 40 moves. This is preferred.

The spring 30 is connected so that the valve device 40 moves in the direction of the frame 15, whereby the valve device 40 is spaced apart from one side of the base 12 and the passage part 20. ) Remains open.

Accordingly, at least one gap adjusting device may be disposed on one side of the base 12 on which the frame 15 is formed so that the gap between the valve device 40 and the one side of the base 12 is adjusted and constrained. 60) is preferably provided.

Here, the gap adjusting device 60 is preferably inserted into the coupling hole 62 formed at least one or more at predetermined intervals along one outer circumferential surface of the base 12 on which the frame 15 is formed. Do.

In addition, the fastening hole 62 may be formed through the base 12, and a thread is formed on an outer circumferential surface thereof, and an inner circumferential surface of the gap adjusting device 60 is formed inside the fastening hole 62. It is preferable that a thread corresponding to the thread is formed. As the spacing device 60, a conventional bolt may be used.

Therefore, the gap adjusting device 60 may be screwed to the fastening hole 62 and rotated to adjust the height of the gap adjusting device 60. In addition, a fastening nut 64 is coupled to an outer side of the gap adjusting device 60, and any one side of the fastening nut 64 is in contact with at least one side of the base 12 so that the gap adjusting device ( 60) can be fixed.

In addition, it is preferable that an enlarged portion having a step is formed at one end of the gap adjusting device 60, and the movement of the valve device 40 is limited while one side surface of the valve device 40 is in contact with one side of the enlarged portion. Can be. Here, when a conventional bolt is used as the spacing device 60, the head of the bolt may be used as the enlarged portion.

That is, the valve device 40 is separated from one side surface of the base 12 by the contracting force of the spring 30 and moved to the center portion of the frame 15. At this time, one side of the valve device 40 opposite to the spring 30 is in contact with one side of the enlarged portion formed at one end of the gap adjusting device 60 opposite to the base 12 to the valve The distance at which the device 40 is spaced apart from the base 12 is constrained.

Meanwhile, a threaded portion 14 may be formed on the outer circumferential surface of the base 12. Through this, it is possible that the safety valve is screwed to the equipment (200). Equipment 200 is defined here to include from a single piece of equipment, such as a pipe, to an assembly, such as a structure.

The safety valve coupled to the equipment 200 is a state in which the valve device 40 is separated from the base 12 by the contracting force of the spring 30 is fixed by the separation interval controlled by the spacer 60. .

At this time, when the flow of fluid begins to flow into the equipment 200, the fluid is discharged to the passage portion 20. When the pressure of the fluid is greater than the contracting force of the spring 30, the fluid is the valve device By pushing the 40, the valve device 40 may be in close contact with the base 12, and the passage part 20 may be sealed to allow the fluid to move inside the equipment 200.

Therefore, the safety valve having such a configuration can be used in a turbo compressor or a turbo blower to be used as a blow off valve (BOV). That is, the pressure air is discharged to the outside through the passage portion 20 until the predetermined pressure is set by adjusting the tension of the spring 30 at the start of the turbo compressor, and when the pressure is set, the valve device 40 Is moved to seal the passage part 20 and the fluid may flow normally.

In addition, since the safety valve may be mainly installed inside the equipment 200, it is preferable that the safety valve is made of a corrosion-resistant or abrasion-resistant material to be protected from various kinds of fluids moving inward.

On the other hand, Figure 4 is a perspective view showing a safety valve according to a second embodiment of the present invention, Figure 5 is a cross-sectional view showing a state of installation of the safety valve according to a second embodiment of the present invention.

Since the basic configuration of this embodiment is the same as that of the first embodiment described above, a description thereof will be omitted.

4 and 5, in the safety valve according to the present embodiment, the valve device 40 is located on one side of the base 12 on which the frame 15 is not formed. In addition, the valve device 40 is provided such that a plurality of guide protrusions 45 formed on one side thereof are embedded inside the passage part 20. In addition, the gap adjusting device 60 is also coupled to one side of the base 12 in which the valve device 40 is located.

Therefore, the valve device 40 to which the force is applied to move in the direction of the frame 15 by the spring 30 is in contact with one side of the base 12. Then, when a force equal to or greater than the contracting force of the spring 30 is applied to the valve device 40 through the passage part 20, the valve device 40 is pushed out of the base 12 and moved. At this time, the valve device 40 is in contact with the gap adjusting device 60 is stopped by movement at a predetermined interval from one side of the base 12.

In addition, a threaded portion 14 is formed on the outer circumferential surface of the base 12 such that the safety valve may be screwed to the equipment 200.

The safety valve having such a configuration is applied to the equipment 200 in which the high pressure is formed inside, so that the pressure formed inside the equipment 200 increases beyond the tension of the spring 30, the valve device 40 ) Is spaced apart from the base 12, the passage part 20 is opened, and may be used as a safety valve to protect the equipment 200 by discharging the fluid inside the equipment 200 to the outside.

In addition, the safety valve having such a configuration is applied to the equipment 200 is a vacuum pressure is formed inside the vacuum pressure is formed inside the equipment 200 increases above the tension of the spring 30, the The valve device 40 is spaced apart so that the passage part 20 is opened and fluid outside the equipment 200 is introduced into the equipment 200 to be used as a safety valve to protect the equipment 200. It may be.

6 is a state sectional view showing an installation state of a safety valve according to a third embodiment of the present invention.

Since the basic configuration of this embodiment is the same as the second embodiment described above, description thereof will be omitted.

As shown in FIG. 6, the safety valve according to the present embodiment does not have threads formed on the outer side of the base 12.

Therefore, the safety valve may be provided inside the equipment 200, such as a pipe, through which, it may be used as a flow control valve for adjusting the flow rate of the fluid moving in the pipe and a non-return valve to prevent backflow. .

That is, when the pressure of the fluid moving in the conduit is greater than the contracting force of the spring 30, the valve device 40 is separated from the base 12, the passage portion 20 is opened, the passage portion ( Through 20) the fluid moves.

Here, by setting the separation distance of the valve device 40 by adjusting the gap adjusting device 60, the flow rate moving through the passage portion 20 can be adjusted. In addition, when the pressure of the fluid is reduced, the spring 30 contracts and the passage part 20 is closed, thereby preventing backflow of the fluid already moved.

As described above, the present invention is not limited to the above-described specific preferred embodiments, and various modifications by those skilled in the art to which the present invention pertains without departing from the gist of the present invention claimed in the claims. Implementations are possible and such variations are within the scope of the present invention.

Referring to the effect of the safety valve according to the present invention described above are as follows.

First, the spring is connected to the central portion of one side of the control bolt coupled to the central portion of the valve device is applied so that the elastic recovery force of the spring is not biased to the valve device can be prevented from shaking and twisting the valve device during opening and closing. In addition, since the center of the valve device does not deviate, vibration of the valve device does not occur, and thus noise can be prevented.

Second, the plurality of guide protrusions formed on one side of the valve device is in contact with the inner circumferential surface of the passage portion to be slid to further prevent shaking and torsion when the valve device is moved, thereby smoothing the operation of the valve device, safety valve Control of the flow rate through can also be made more precise.

Third, by releasing the spacing device and removing the spring, the engagement position of the valve device can be easily changed to either side of the passage. And, when applied to the coupling position and the equipment of the valve device is compatible with a versatile, such as a pressure safety valve, a vacuum safety valve, a blow off valve (BOV), a flow control valve and a non-return valve.

Fourth, the opening and closing of the valve device is made by the pressure of the fluid itself and the elastic force of the spring can be operated without a separate power can be used for a long time, the structure is simple, the failure rate can be significantly reduced.

Claims (5)

A valve body including a base having a cylindrical portion through which a cylindrical portion is formed, and a frame extending from one side of the base to a predetermined height, and extending ends thereof connected to each other; The control bolt is detachably coupled to the center portion, one side surface is selectively in close contact with one side of the base valve device for opening and closing the passage; And One end is connected to pass through the central portion of one side of the adjustment bolt, the other end is a safety valve comprising a spring connected to the upper center portion of the frame facing the control bolt. The method of claim 1, The valve is elastically supported so as to move in the direction of the center of the frame by the spring inside the frame, the space between the frame is a safety valve, characterized in that the valve device is formed to be separated outward. The method of claim 1, A safety valve, characterized in that the one side of the valve device is formed with a plurality of guide protrusions protruding in a predetermined length so that the shaking of the valve device is prevented, each one side is in contact with the inner peripheral surface of the passage portion. The method of claim 1, One side of the base safety valve, characterized in that provided with at least one interval adjusting device to be in contact with the one surface of the valve device is spaced apart from the base to adjust and restrain the valve device. The method of claim 1, The adjustment bolt is a safety valve, characterized in that the position of the adjustment bolt is changed in the vertical direction with the valve device is screwed with the valve device so that the elastic force of the spring is adjusted.

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