KR20200032306A - Aperture Type Automatic Flow Control Valve - Google Patents

Abstract

The present invention relates to an aperture type flow amount control valve, wherein an impeller provided in a pipe is rotated by fluid, such that an aperture can be closed by rotational force generated accordingly, thereby reducing a fluid passing area and thus maintaining the constant flow amount. To this end, the present invention comprises: a pipe unit including a pipe main body; a starting unit composed of a ring-shaped wheel provided on the inner wall of the pipe main body, and an impeller rotatably installed at the ring-shaped wheel; a driving force delivering unit provided on the outside of the pipe main body, and including a driving force delivering means and a recovery means to which the rotational force of the impeller is applied; and an opening and closing unit composed of a ring-shaped fixing stepped projection fixedly installed on the inner wall of the pipe main body, a rotational rim rotatably provided at the fixing stepped projection and rotated by the driving force delivering means, a link having one end connected to the rotational rim, and an aperture rotatably connected to the link and the fixing stepped projection. Therefore, the fluid passing area of the aperture can be reduced as each displacement of the rotational rim is increased. In addition, the recovery means allows the impeller to be rotated only at a starting flow speed or above.

Description

Aperture type automatic flow control valve

The present invention relates to an aperture type automatic flow control valve, and more specifically, the impeller provided inside the pipe is rotated by the fluid, and the aperture is narrowed by the rotational force generated here, thereby reducing the flow area of the fluid to maintain a constant flow rate. It relates to an aperture type automatic flow control valve.

As a valve used in the conventional flow control, the butterfly valve is controlled to open and close the valve through the rotation of a disk-shaped disc blocking the flow path, and the opening of the valve starts from the inner wall adjacent to the disc. However, the fluid behavior in the pipe is a structure in which the flow velocity decreases due to the friction of the inner wall as it moves toward the inner wall while the flow velocity at the center of the pipe is at its maximum. There is a disadvantage that occurs easily).

Also, in the case of a globe valve, due to the structure of the opening / closing portion, the direction of the fluid is severely changed during the passage of the fluid, and thus there is a problem in that it is easy to generate the phenomenon.

On the other hand, in the case of the aperture type flow control valve, the opening of the aperture starts from the center of the pipe, so that a more quiet opening / closing amount can be adjusted compared to the valves above, and an automobile engine valve or boiler requiring precise or quiet flow control is required. It is mainly used for fuel supply valves.

The problem to be solved in the present invention is to provide a diaphragm flow control valve that maintains a constant flow rate even when a flow rate is changed by adjusting a flow area of a fluid in a pipeline through mechanical interaction rather than electrical control. In addition, it is to keep the flow of the fluid stably by preventing a gap from being formed between the apertures in the process of opening and closing the aperture.

In addition, the problem to be solved in the present invention is to provide an aperture type flow control valve in which the opening and closing amount of the aperture is adjusted at a specific flow rate or higher.

The technical problems to be achieved by the present invention are not limited to the technical problems mentioned above, and other technical problems not mentioned can be clearly understood by those skilled in the art from the following description. There will be.

Aperture-type flow control valve of the present invention for solving the above problems, a piping portion including a pipe body; An annular wheel provided on the inner wall of the tube body, and a moving part composed of an impeller rotatably installed on the annular ring; It is provided on the outside of the tube body, the power transmission unit including a power transmission means and a restoration means to which the rotational force of the impeller is applied; And an annular fixed step fixedly installed on the inner wall of the tube body, a rotatable rim rotatably provided on the fixed step, and a link connected to one end to the rotating rim, rotated on the link and the fixed step. It is made of; the opening and closing portion is made of an aperture that is possibly connected; is made, and as the displacement of the rotating rim increases, the fluid passing area of the aperture decreases, and the restoring means is characterized in that the impeller rotates only at or above the starting flow velocity.

In addition, the diaphragm flow control valve of the present invention, the first transmission gear, the first driven gear meshed with the first driving gear, the first driven gear and the first driven gear shaft-coupled to the impeller provided with the power transmission means And a second driving gear, a belt unit started by the second driving gear, a bevel gear unit connected to the belt unit, and a third driving gear formed on the annular rim and started by the bevel gear unit. It is characterized by.

In addition, the aperture type flow control valve of the present invention is characterized in that the restoration means is an elastic body or a spring provided between the belt unit and the bevel gear unit.

In addition, the diaphragm flow control valve of the present invention is characterized in that the restoration means is an elastic body or a coil spring, one end of which is fixed to the first driving gear and the other end of which is fixed to the tube body.

In addition, the aperture type flow control valve of the present invention is characterized in that the restoration means is a torsion bar connecting the first driven gear and the second driven gear.

In addition, the aperture type flow control valve of the present invention is characterized in that the torsion bar is further provided with a length adjustment means.

In addition, the aperture-type flow control valve of the present invention, the plurality of apertures are arranged radially to each other, the fluid passage area is adjusted according to the degree of overlap between neighboring apertures, the upper surface and the first hinge axis connected to the link It characterized in that the second hinge axis is formed to be connected to the fixed step.

In addition, the aperture type flow control valve of the present invention is characterized in that an overlapping stepped surface is formed on the surface of the aperture and overlaps each other while guiding neighboring apertures in the opening and closing process of the aperture.

According to the present invention, only through mechanical interaction, through a moving part including an impeller rotatably installed inside the tube body, a power transmission means connected to the impeller, and an aperture connected to the power transmission means via a rotating rim. Since the flow rate control is easily performed, the management efficiency of the piping equipment is increased.

In addition, according to the present invention, since the flow rate control is performed at the starting flow rate or higher through the restoration means provided in the power transmission means, the stability of the flow rate control valve according to the present invention is improved.

It should be understood that the effects of the present invention are not limited to the above-described effects, and include all effects that can be deduced from the configuration of the invention described in the detailed description or claims of the present invention.

1 is a perspective view showing the appearance of an aperture flow control valve according to the present invention.
Figure 2 is a cross-sectional view showing a side of the aperture flow control valve according to the present invention.
Figure 3 is a cross-sectional view illustrating a connection relationship between the impeller and the power transmission means of the aperture flow control valve according to the present invention.
Figure 4 is a cross-sectional view showing another embodiment of the connection relationship between the impeller and the power transmission means of the aperture type flow control valve according to the present invention.
Figure 5 is a cross-sectional view showing another embodiment of the connection relationship between the impeller and the power transmission means of the aperture flow control valve according to the present invention.
Figure 6 is a plan view illustrating the restoration means of the aperture type flow control valve according to the present invention.
7 is a cross-sectional view illustrating a torsion bar provided in the aperture flow control valve according to the present invention.
8 is a cross-sectional view showing another embodiment of the torsion bar provided in the aperture flow control valve according to the present invention.
9 is a perspective view showing a detailed structure of the aperture provided in the aperture flow control valve according to the present invention.

Hereinafter, the present invention will be described with reference to the accompanying drawings. However, the present invention may be implemented in various different forms, and thus is not limited to the embodiments described herein.

Throughout the specification, when a part is "connected (connected, contacted, coupled)" to another part, this is not only when it is "directly connected", but also "indirectly" with another member in between. "It also includes the case where it is. In addition, when a part is said to "include" a certain component, this means that other components may be further provided instead of excluding other components, unless otherwise stated.

The terms used in this specification are only used to describe specific embodiments, and are not intended to limit the present invention. Singular expressions include plural expressions unless the context clearly indicates otherwise. In this specification, terms such as “include” or “have” are intended to indicate that a feature, number, step, operation, component, part, or combination thereof described in the specification exists, and that one or more other features are present. It should be understood that the existence or addition possibilities of fields or numbers, steps, operations, components, parts or combinations thereof are not excluded in advance.

Hereinafter, with reference to the accompanying drawings, preferred embodiments of the present invention will be described so that those skilled in the art can easily carry out.

First, looking at each drawing, FIG. 1 is a perspective view showing the appearance of an aperture flow control valve according to a temporary example of the present invention, and FIG. 2 shows a side surface of an aperture flow control valve according to an embodiment of the present invention 3 is a cross-sectional view illustrating a connection relationship between an impeller and a power transmission means of an aperture flow control valve according to an embodiment of the present invention, and FIG. 4 is an aperture flow control according to an embodiment of the present invention As a cross-sectional view showing another embodiment of the connection relationship between the impeller of the valve and the power transmission means, it shows a structure in which the impeller and the power transmission means are spaced apart, and FIG. 5 shows the impeller and power of the aperture flow control valve according to the present invention. As a cross-sectional view showing another embodiment of the connection relationship of the transmission means, it shows a structure employing a torsion bar. 6 is a plan view illustrating the restoration means of the aperture flow control valve according to the present invention, FIG. 7 is a cross-sectional view illustrating a torsion bar provided in the aperture flow control valve according to the present invention, and FIG. 8 according to the present invention As a cross-sectional view showing another embodiment of the torsion bar provided in the aperture flow control valve, it shows a structure for adjusting the length of the torsion bar by a separate driving means, and FIG. 9 shows the aperture flow control valve according to the present invention. As a perspective view showing a detailed structure of the provided aperture, it shows a structure capable of overlapping and supporting each other by a stepped structure.

1 to 3, the aperture-type automatic flow control valve according to an embodiment of the present invention includes a piping unit 10; And a moving part 20 installed inside the pipe of the piping part 10. A power transmission unit 30 provided outside the piping unit 10; It is installed inside the pipe of the pipe portion 10, the opening and closing portion 40 is installed at a predetermined distance from the starting portion 20; comprises a.

Through this configuration, the present invention, when the fluid inside the pipe flows at a predetermined flow rate or more (hereinafter referred to as 'starting flow rate'), the impeller 23 provided in the starting portion 20 rotates, and the rotational force is transmitted by power. It is transmitted to the opening / closing portion 40 through the portion 30, and the aperture 44 provided in the opening / closing portion 40 approaches each other centrally by the rotational force, so that the fluid passing area E of the aperture 44 installation point is small. It is characterized by maintaining the fluid flow rate constant through this.

Hereinafter, if the contents of the present invention are described in more detail for each configuration, first, the piping portion 10 is composed of a pipe body 11 and a casing 13. The pipe body 11 is usually manufactured with the same specifications as piping such as a mechanical device or facility to which the present invention is installed. The casing 13 is formed to have a larger diameter or dimension than the tube body 11 to prevent external leakage of the fluid, and is made of a structure surrounding some detailed configurations of the present invention, and is external through a fastening means (not shown). It may have a structure connected to the piping. On the other hand, the one side of the casing 13 is provided with a through hole for management 14, the aperture type automatic flow control valve of the present invention is sealed with a stopper during fluid flow, and can be opened and used for cleaning and maintenance.

In the aperture-type automatic flow control valve according to an embodiment of the present invention, the starter 20 rotates by the fluid passing through the tube to extract the driving time to drive the aperture 44 and the aperture 44 Simultaneously serves to extract the driving energy to drive the source. The rotational force caused by the starting unit 20 is transmitted to the iris 44 through the power transmission unit 30.

In one embodiment, the maneuvering portion 20 may be configured to include an impeller 23 supported to enable concentric rotation with respect to the tube body 11. At this time, the impeller 23 may be formed integrally with the drive pulley 35a of the power transmission unit 30 described below. That is, as illustrated in FIG. 3, the circumferential portion of the impeller 23 is configured as a driving pulley 35a to include a part of the power transmission unit 30. It is preferable to provide a ball bearing structure 12 between the tube body 11 so that the concentric rotation of the impeller 23 can be smoothly supported.

On the other hand, the movable unit 20 and the power transmission unit 30 may be provided with a structure to further include other configurations of additional functions by separately installing and spaced apart from each other, as shown in Figure 4 of the present invention In the diaphragm-type automatic flow control valve according to another embodiment, the starting part 20 is an annular ring 21 provided on the inner wall of the tube body 11, and an impeller 23 rotatably installed on the annular ring 21 ).

A protrusion 23a is formed at an upper end of the impeller 23, and the protrusion 23a extends outwardly from the tube body 11 through a hole formed in the tube body 11, and protrudes. As shown in FIG. 5, the end thereof is directly fixed to the hub side of the drive pulley 35a of the belt unit 35, or a gear tooth is formed at the protruding end as shown in FIG. 5 to form the first driving gear 31. have.

In the aperture type automatic flow control valve of the present invention, the power transmission unit 30 may be configured by employing various power transmission means, as shown in FIG. 5 as an embodiment thereof, at the end of the projection 23a. The first drive gear 31 formed on the arc, the first driven gear 32 meshed with the first driven gear 31, the second driven gear 33 axially coupled with the first driven gear 32, the first The second driven gear 33 and the second driven gear 34, the second driven gear 34 is fixed to the belt unit 35, the belt unit 35 is connected to the bevel gear unit 36 , Includes a third drive gear 37 engaged with the driven gear 36c of the bevel gear unit 36, a manual adjustment lever 38 provided in the driven pulley 35b of the belt unit 35, and a restoring means Can be configured.

The second driven gear 34 is formed to protrude on the hub side of the drive pulley 35a of the belt unit 35 and is configured to transmit a driving force to the drive pulley 35a.

On the other hand, in Figures 1, 3, 4, 5, etc., the bevel gear unit 36 is composed of a meshing structure of a horizontal rotation axis and a vertical rotation axis, which are a plurality of rotation axes, which are exemplary. That is, in Figures 1, 3, 4, 5, etc., the end of the horizontal rotary shaft may directly mesh with the third driving gear 37 to achieve a power transmission structure.

 In the diaphragm-type automatic flow control valve of the present invention, the restoring means performs a function of restoring the iris 44 of the opening / closing portion 40 to its original position through a restoring force at a starting flow rate or lower.

In addition, even when the flow velocity is low, if the impeller 23 rotates, the effect of surging reduction may be deteriorated due to frequent maneuvering of the iris 44, and the impeller 23 rotates only at a starting flow velocity or higher due to limitations of the restoration means. By making it possible, it has the advantage of further improving the effect of surging reduction. That is, the restoring means has an effect of restoring the driving force transmission by the rotation of the impeller 23 with the effect of restoring the stop 44 to its original position.

Restoration means of the present invention may be disclosed in various embodiments, as shown in Figures 3 and 4 as an embodiment of the elastic body or spring provided between the belt unit 35 and the bevel gear unit 36 ( a). That is, a part of the shaft on the power transmission path is formed of a material such as rubber or plastic, or formed of a cross-section structure with a low stiffness coefficient to form an elastic body, or a spring (a) is interposed in the middle of the shaft and connected. The restoring means restricts transmission of driving force due to frequent rotation of the impeller 23, thereby reducing the opening and closing amount and the frequency of the aperture 44.

In addition, as another embodiment of the restoration means, one end of the restoration means is fixed to the protrusion 23a of the impeller 23 projecting out of the tube body 11 or as shown in FIG. It is fixed to the gear 31, the other end is fixed to the tube body 11, the body may be an elastic body or a coil spring (b). That is, at least a part of the body of the restoring means is formed of a material such as rubber or plastic or formed of a low-rigidity cross-section structure to form an elastic body, or a spring (b) is interposed in the middle of the body to form a connected structure. do. When the abnormal flow is caused by the restoring means, the diaphragm 44 is narrowed by the rotation of the impeller 23, and when normal flow is performed, the diaphragm 44 is returned to its original position, thereby effectively providing the function of the automatic flow control valve. You can.

In addition, as another embodiment of the restoration means of the present invention, as shown in FIG. 5, the connecting shafts of the first driven gear 32 and the second driving gear 33 are formed to have a predetermined length, and the connecting shaft Restoration means may be provided in a manner to perform the function of the torsion bar (t). At this time, the material of the connecting shaft may be composed of spring steel, but is not limited thereto.

On the other hand, depending on the physical properties of the fluid or due to long-term use, when the impeller 23 is corroded or various foreign substances are fixed, the frictional resistance of the impeller 23 against the fluid flow changes, which causes the impeller 23 to be below the starting flow rate. ), There is a possibility that the proper flow rate maintenance performance is deteriorated.

In the present invention, as a further improved structure, a length adjusting means may be added to the torsion bar (t). That is, in the case of the torsion bar (t), the elastic properties change according to the length (l). Normally, when the length (l) is shortened, the stiffness is strengthened and the starting time of rotation of the impeller 23 can be delayed. By increasing, it is possible to correct the start of the rotation at the starting flow rate or lower so that it starts at the starting flow rate or higher.

As an example of such a length adjusting means, as shown in FIG. 7, after cutting a midway point in the longitudinal direction of the torsion bar t, a left-hand thread and a right-hand thread are formed at each incision site and the adjustment nut (n ), The length (l ') of the torsion bar (t) can be precisely adjusted (shortened) by rotation of the adjustment nut (n), thereby improving durability and operational reliability of the present invention. .

As another embodiment of the length adjusting means, as shown in Figure 8, as the length adjusting means of the torsion bar (t), at least one of the first driven gear 32 and the second driving gear 33 To engage any one of the torsion bar (t) so as to be movable in the axial direction of the torsion bar (t), and the meshed first driven gear (32) or second driven gear (33) by the position controller (m) A structure in which the length l 'of the torsion bar t, which mediates the driving force transmission by adjusting the engagement position by adjusting the direction, can be adjusted.

On the other hand, the manual adjustment lever 38 is a configuration for adjusting the opening and closing amount of the aperture 44 through manual operation, separate from the adjustment of the opening and closing amount of the aperture 44 through the rotation of the impeller 23, In this case, the clutch 39 is further provided on the connecting shaft of the driven pulley 35c, and is preferably provided in a manner capable of manual operation when selectively engaging the clutch 39.

In the aperture type automatic flow control valve of the present invention, the opening / closing part 40 is an annular fixed step 41 that is fixedly installed on the inner wall of the tube body 11, as shown in FIGS. 2, 3 and 4, and the fixing Rotating rim 42 rotatably provided on the stepped jaw 41, link 43 having one end connected to the rotating rim 42, and an aperture rotatably connected to the link 43 and the fixed stepped jaw 41 44).

A plurality of apertures 44 are radially arranged based on the central portion C of the tube body 11. In addition, when the rotating rim 42 is rotated, each aperture 44 forms a mutually overlapping structure with the neighboring aperture 44 'by the overlapping stepped 46 formed on the surface, and the opening and closing amount of the valve, that is, the fluid passing area E ). That is, the aperture 44 is partially overlapped stepped 46 is formed and the overlapping stepped 46 corresponding to the neighboring aperture 44 'is formed, so that the neighboring aperture 44 in the opening and closing process of the aperture 44 ') To form mutually overlapping and supported structures. By forming the mutually overlapping structure as described above, a gap is not formed between the apertures in the opening / closing process of the aperture, so that the fluid flow is stably maintained. In addition, the side wall of the overlapping stepped 46 may be formed to perform an additional function of slidingly contacting the neighboring aperture 44 ′ during the opening and closing of the aperture 44 and guiding the movement of the aperture 44.

If the kinematic coupling structure of the iris 44 is described in more detail, a first hinge axis 44a and a second hinge axis 44b are formed on the upper surface of the iris 44, so that each hinge has the link 43 ) Are respectively connected to the other end and the fixed step 41, and with this, a third driving gear 37 is formed on the upper rear surface of the rotation rim 42.

Therefore, when the annular rim 42 is rotated by the third driving gear 37, the aperture 44 is rotated about the second hinge axis 44b by the rotational force of the link 43, and the fluid passage area ( E) is to be adjusted. When the displacement of the rotating rim 42 increases, the fluid passage area (E) is designed to be narrow, so that the flow rate can be kept constant even when the flow rate is increased, thereby preventing the phenomenon. do.

In addition to this, the above description of the present invention is for illustration only, and those of ordinary skill in the art to which the present invention pertains understand that it is possible to easily modify to other specific forms without changing the technical spirit or essential features of the present invention. Will be able to. Therefore, it should be understood that the embodiments described above are illustrative in all respects and not restrictive. For example, each component described as a single type may be implemented in a distributed or divided manner. Similarly, components described as distributed or divided may be implemented in a combined form within the scope of ordinary skill in the art. have. In addition, the steps of the method may be performed singly or multiple times in combination with at least one other step.

The scope of the present invention is indicated by the following claims, and all changes or modifications derived from the meaning and scope of the claims and equivalent concepts should be interpreted to be included in the scope of the present invention.

10: piping
11: tube body 13: casing
20: moving part
21: annular ring 23: impeller
30: power transmission unit
31: first driving gear 32: first driving gear
33: second driving gear 34: second driving gear
35: Belt unit 36: Bevel gear unit
37: third drive gear 38: manual adjustment lever
39: clutch
40: opening and closing
41: fixed step 42: annular rim
43: link 44: aperture
46: overlapping jaw

Claims (10)

A pipe portion 10 including a pipe body 11;
A moving part 20 including an annular ring 21 provided on an inner wall of the tube body 11 and an impeller 23 rotatably installed on the annular ring 21;
A power transmission unit 30 provided outside the tube body 11 and including a power transmission means and a restoration means to which the rotational force of the impeller 23 is applied; And
The tube main body 11 is fixed to the inner wall of the annular fixed step 41, rotatably provided on the fixed step 41, the rotating rim 42 rotated by the power transmission means, the rotating rim 42 Includes; including a link 43, one end of which is hinged to), an aperture 44 hinged to the other end of the link 43 and rotatably connected to the fixed step 41. Is composed,
As the angular displacement of the rotating rim 42 increases, the fluid passing area E of the iris 44 decreases, and the restoring means allows the impeller 23 to rotate only at a starting flow rate or higher. Automatic flow control valve. According to claim 1,
The power transmission means includes a first drive gear 31 in an arc shape provided on the impeller 23, a first driven gear 32 meshed with the first drive gear 31, and the first driven gear 32 ) And a second drive gear 33 that is axially coupled, a belt unit 35 started by the second drive gear 33, a bevel gear unit 36 connected to the belt unit 35 and the annular rim A stop type automatic flow control valve comprising a third drive gear (37) formed on (42) and activated by the bevel gear unit (36). According to claim 2,
The restoration means is an aperture type automatic flow control valve, characterized in that the elastic body or spring (a) provided between the belt unit 35 and the bevel gear unit (36). According to claim 2,
The restoring means is an aperture type automatic flow control valve, characterized in that one end is fixed to the first driving gear (31) and the other end is an elastic body or a coil spring (b) fixed to the tube body (11). According to claim 2,
The restoration means is an aperture type automatic flow control valve, characterized in that the torsion bar (t) connecting the first driven gear 32 and the second driven gear 33. The method of claim 5,
The torsion bar (t) is an aperture type automatic flow control valve, characterized in that further provided with a length adjustment means. The method of claim 6,
The length adjustment means of the torsion bar (t) is provided with threads in different directions on both sides of the adjustment nut (n), and the torsion bar (t) is bisected at any point in the length direction of the adjustment nut (n) Aperture-type automatic flow control valve, characterized in that the length (l ') of the torsion bar (t), which mediates the transmission of the driving force by the adjustment nut (n), is adjusted by forming structures that are respectively fastened to both threads. The method of claim 6,
The length adjustment means of the torsion bar (t), the at least one of the first driven gear (32) and the second driving gear (33) torsion bar (t) to be movable in the axial direction of the torsion bar (t) Aperture type automatic flow control valve, characterized in that the length (l ') of the torsion bar (t) that mediates the driving force transmission is adjusted by adjusting the mating position by the position controller (m). According to claim 1,
The aperture 44 is a plurality of radially arranged mutually, the first hinge shaft (44a) to determine the fluid passing area (E) with the neighboring aperture, which is connected to the other end of the link 43, and the fixed Aperture-type automatic flow control valve, characterized in that the second hinge shaft (44b) is connected to the stepped (41). The method of claim 9,
The aperture 44 is formed with an overlapping stepped 46 formed in a part, and overlaps and supports the neighboring aperture 44 'in the opening and closing process of the aperture 44, and determines the fluid passage area E. Aperture type automatic flow control valve.

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