KR101018023B1 - Floating valve with fixed type disk - Google Patents

Abstract

The present invention relates to a disk fixed float valve, the main configuration of the tubular valve body; A built-in disk attached to form an outlet at a predetermined interval away from an outlet end of the valve body; A sliding seat portion slidably mounted to an outer circumferential surface of the valve body in a fluid sealed state to close the outlet when it is in close contact with the rear surface of the built-in disk; An electric link unit connected to an outer side of the sliding sheet part and sliding to contact or separate from the built-in disk; An actuating link portion for axially moving said electric link portion relative to said built-in disk; And a float mounted to a free end of the operation link unit to rotate the operation link unit up and down. According to the above configuration, in the opening and closing control of a large-capacity fluid of high temperature and high pressure by a metal sheet unit Opening and closing the outlet by the contact of the sliding seat portion and the built-in disk can improve the opening and closing performance of the valve, and by reducing the kinetic energy of the fluid discharged from the valve it is possible to maintain a stable maintenance of the storage tank.

Valve, float, built-in disc, fixed, cone part, sliding seat part

Description

Floating valve with fixed type disk

The present invention relates to a disk-mounted float valve, and more particularly, in the on-off valve for controlling the flow of the fluid supplied to the storage tank through the fluid supply pipe stably open and close even when the fluid is high temperature, high pressure, or large capacity or chemical The present invention relates to a disk-mounted float valve that significantly improves operation reliability and service life.

In general, the float valve is installed in the supply line of the storage tank capable of storing the fluid, when the level of the fluid flowing into the storage tank rises to a certain height, the fluid supply path is closed so that the supply of the fluid is stopped, and the fluid in the storage tank When the water level is lower than a certain height, the fluid supply passage is opened so that the fluid is supplied so that the fluid in the storage tank can maintain a constant water level at all times.

Figure 1 shows an example of the float valve as described above, the float valve, as shown in FIG. 1, the reference numeral 101 in Figure 1, the inflow passage 103 is connected to the fluid supply pipe on one side, the storage tank 110 on the other The valve seat for opening and closing the inlet 109 in contact with the valve body 107, the inlet passage 103 connecting the inlet passage 103 and the outlet passage 105, respectively formed with a discharge passage 105 opened by 111), a valve 113 pressurizing the valve seat 111 to close the inlet 109 when the valve is closed, and a float 115 mounted at the free end of the lever 113 through the rod 117. .

Accordingly, as shown by the hidden line in FIG. 1, the valve 101 is closed by blocking the inlet 109 by the valve seat 111 by rotating the lever 113 clockwise by raising the float 115 at the full water level. When the water level is lowered, the float 115 is lowered as shown by the solid line to rotate the lever 113 counterclockwise to open the inlet 109 while opening the inlet 109 while the valve seat 111 is spaced apart from the inlet 109. .

However, the conventional float valve 101 as described above allows the valve seat 111 to be pressurized to the inlet 109 by the buoyancy force that the float 115 tries to float on the surface, thereby obtaining a large closing force on the inlet 109. Can't. Therefore, the packing 119 is provided on the contact surface of the valve seat 111 to reinforce the closing force so as to increase the adhesion between the valve seat 111 and the inlet 109, but the packing 119 is used for a long time. There was a problem that the deformation can not be performed sufficiently the sealing function.

Moreover, when the packing 119 is made of rubber, it is difficult to use when the fluid is chemical, and when the fluid is large, the diameter of the inlet 109 becomes large, so that normal valve operation cannot be expected. There was a problem that can not cope with the trend of increasing the size of fluid transport.

That is, a large diameter float valve having a metal sheet should be used in a high-temperature, high-pressure piping system, but since it is almost difficult to manufacture such a valve, as shown in FIG. 2, the storage tank to which the fluid supply pipe 210 is connected is required. A large-capacity valve 201, such as a gate valve, a globe valve, or a ball valve, driven by the electric motor 230, is installed at the inlet side of the 220, and a separate water level and a low water level are recognized in the storage tank 220. By attaching the water level gauge 240 of the water level 240 and the valve 201 to operate in conjunction with the method to adjust the water level of the storage tank 220. However, such a valve 210 has a problem in that the power consumption during driving is large, the wear and tear of parts are severely caused by frequent opening and closing operations, and when the failure occurs, the storage tank 220 cannot be used during the repair period. .

In addition, the float valve 101 of FIG. 1 or the valve 201 of FIG. 2 may cause vortices and beats in the storage tank 220 due to kinetic energy of the fluid discharged through the valves 101 and 201. In order to secure the safety of the storage tank 220, it is necessary to check the state of the storage tanks 110, 220, valves 101, 210, and the water level 240 at all times, such as inevitably introducing human and physical resources for maintenance. There was this.

The present invention has been proposed to solve the problems of the conventional float valve or a large-capacity valve as described above, and can be applied to a large-diameter valve having a metal seat in accordance with the large-capacity of the valve system, high temperature, high pressure fluid or chemical It is an object of the present invention to provide a float valve capable of maintaining a high sealing performance against a material.

In addition, it is another object of the present invention to provide a float valve that can more stably maintain the storage tank by attenuating a substantial portion of the kinetic energy of the fluid supplied to the storage tank in the process of discharging it into the storage tank.

Therefore, the present invention, in order to achieve the above object, the inlet end connected to the fluid supply pipe is formed on one side, the outlet end opened to the storage tank on the other side, respectively; A built-in disk attached to an inner circumferential surface of the valve body and configured to form an outlet at a predetermined distance from an outlet end of the valve body; A sliding seat portion slidably mounted to an outer circumferential surface of the valve body in a fluid sealed state to close the outlet when it is in close contact with the rear surface of the built-in disk; An electric link unit connected to an outer side of the sliding sheet part and sliding to contact or separate from the built-in disk by axially moving the sliding sheet part relative to the built-in disk; An operation link unit connected to a central portion of the electric link unit to relatively move the electric link unit in the axial direction with respect to the built-in disk; And a float mounted to a free end of the actuating link part to rotate the actuating link part up and down by buoyancy or the actuating link part and the weight of the actuating link part.

In addition, the built-in disk has a guide rod protruding in the axial direction in the front center, the electric link portion, the guide shoe is inserted into the guide rod to slide in the axial direction; A plurality of support arms attached to an outer circumferential surface of the guide shoe and extending in a radial direction about the guide shoe; And a plurality of transmission rods coupled between an edge of the support arm and an edge of the sliding sheet part to move the sliding sheet part in an axial direction in conjunction with the support arm.

In addition, the operation link unit, one end is pivotally coupled to the built-in disk, the other end is elongated to be mounted to the float; And a crank having one end integrally connected to one end of the lever and pivotally coupled to the built-in disk, and the other end pivotably coupled to an outer circumferential surface of the guide shoe.

In addition, the built-in disk has a conical portion protruding obliquely contacting the sliding sheet portion on the rear surface, it is preferable that the fixed plate is fixed to the body by a connecting plate connecting the inner surface of the concave surface of the cone portion.

Therefore, according to the disk fixed float valve of the present invention, the valve opening / closing structure consisting of a built-in disk attached to the valve body and a sliding seat portion closely contacted or spaced from the disk is simple, and a relatively large force is not required for the valve operation. As a result, the float can be miniaturized or the valve can be made large in diameter, and accordingly, a large-capacity fluid can be stably opened and closed in accordance with the recent trend of increasing the volume of the valve.

In addition, since the sliding seat portion is made of metal, and the sealing performance is greatly improved through the inclined contact with the conical surface of the built-in disk, the valve operation reliability is high regardless of the size of the fluid even for fluids such as high temperature and high pressure or chemicals. It can be improved further.

In addition, when the fluid supplied to the storage tank through the valve collides with the cone protruding from the back of the built-in disk before passing through the valve outlet, it consumes a large part of the kinetic energy and is discharged through the outlet to the storage tank. Since the fluid stored in the tank does not cause vortex or beat phenomenon, it is possible to minimize the impact on the storage tank to maintain the storage tank more stably.

Hereinafter, a disk fixed float valve according to a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

The disc fixed float valve of the present invention, as shown by reference numeral 1 in FIG. 3, has a valve body 3, a built-in disk 5, a sliding seat portion 7, an electric link portion 9, and an operation link portion as a whole. (11) and float (13).

Here, the valve body 3 is a portion forming the body of the float valve 1, as shown in Figures 3 and 4, basically in the form of a cylindrical tube, upstream as shown in Figure 3 The outlet side of the fluid supply pipe 10 is connected to the fluid inlet end 21 on the side, and the fluid outlet end 23 on the downstream side is opened to the storage tank 20 through the valve outlet 25.

In addition, the built-in disk 5 is attached to and fixed to the valve body 3, unlike the opening and closing disk of the general valve, for this purpose, as shown in Figures 3, 4, and 6, for example, the valve body ( A plurality of connecting plates 39 protrude radially on the inner circumferential surface 27 of 3) and are attached to the conical portion 37 of the rear surface 31.

In this way, the built-in disk 5 is fixed to the outlet end 23 side of the valve body 3 by a plurality of connecting plates 39, the conical portion 37 protrudes in the center of the rear surface 31, the valve body The annular outlet port 25 is formed by being spaced apart at regular intervals from the outlet end 23 of (3). At this time, the cone portion 37 is to open and close the outlet port 25 by the sliding sheet portion 7 which is inclined contact with the inclined surface 38, the built-in disk 5 between the outlet end 23 and It is not necessary to form a conical portion 37 on the rear surface 31 to open and close the outlet 25 while making the outlet 25 and contacting or spaced with the sliding seat portion 7, the sliding seat portion 7 In case of attaching a packing or the like to the contact portion with the contact plate, the outlet 25 may be sufficiently opened and closed as a flat plate, but it is built-in when controlling the flow of a high-temperature, high-pressure, or large-capacity fluid or chemical requiring metal contact. It is preferable to form a conical portion 37 on the back surface 31 of the built-in disk 5 so that the disk 5 and the sliding sheet portion 7 can be combined with the comb surface to obtain high adhesion. On the other hand, in the center of the front face 33 of the built-in disk 5, the guide rod 35 for guiding the guide shoe 41 of the electric link part 9 protrudes in the axial direction toward the front.

In addition, the sliding seat 7 is a metal material for opening and closing the outlet 25 formed between the outlet end 23 of the valve body 3 and the concave surface 38 of the cone portion 37 of the built-in disk (5). 3 and 4, a cylindrical shape surrounding the outer circumferential surface 29 of the valve body 3, the transmission rod 45 on the outlet end 23 side of the valve body (3) The flange 59 for mounting the protrudes. Accordingly, the sliding seat 7 is slidably mounted to the outer circumferential surface 29 of the valve body 3 in a fluid sealed state, so that the rear surface 31 of the built-in disk 5, that is, the concave portion 37, the inclined surface 38. The inner end surface edge of the downstream end, that is, the front end, is chamfered at the same angle as the inclined surface 38 so as to be in close contact with the top, and thus the outlet port 25 is closed when the inclined surface is in close contact with the inclined surface 38. In addition, the packing ring 61 is wound between the upstream end of the inner circumferential surface of the sliding seat 7 and the outer circumferential surface 29 of the valve body 3 so as to slide on the outer circumferential surface 29 of the valve body 3 in a fluid sealed state. At this time, the packing ring 61 is slidably compressed on the outer circumferential surface 29 of the valve body 3 by the pressing ring 63 bolted to the upstream end of the sliding seat 7, that is, the rear end.

In addition, the electric link portion 9 is a connecting means connected to the outside of the sliding seat portion 7 so as to move the sliding seat portion 7 relative to the built-in disk 5 in the axial direction, and the sliding seat portion 7 ) And slides so as to contact or separate the built-in disk (5).

To this end, as shown in FIGS. 3 to 5, the electric link unit 9 includes a guide shoe 41, a plurality of support arms 43, and a plurality of electric rods 45. The shoe 41 is a member connecting the electric link unit 9 and the operation link unit 11, and as shown in Figs. 3 to Fig., Slid in the axial direction on the outer circumferential surface of the guide rod 35 of the built-in disk 5; It is inserted to be movable.

In addition, the plurality of support arms 43 are connecting members extending radially about the guide shoe 41 as shown in FIGS. 4 and 5, and bolts the electric rod 45 to the radially outer side. By coupling, the guide shoe 41 located at the center is connected to the sliding seat portion 7 via the transmission rod 45 and the transmission rod 45.

Finally, the plurality of transmission rods 45 are rods extending rearward in the axial direction, i.e., parallel to the guide rod 35, at the ends of each of the plurality of support arms 43, as shown in FIG. Similarly, the support arm 43 and the flange 59 of the sliding seat portion 7 are fastened by bolting or the like to slide the relative movement of the support arm 43, that is, the guide shoe 41, with respect to the built-in disk 5. It is to be transmitted to the portion 7, whereby the sliding seat 7 is moved back and forth in the axial direction in conjunction with the support arm 43.

On the other hand, the operation link unit 11 is a driving unit for moving the sliding seat portion 7 by operating according to the height of the fluid in the storage tank 20, that is, the water level, the guide shoe (center) of the electric link portion (9) ( 41 is connected to the front lever 51 and the guide shoe 41 connected to the float 13 in order to axially move the electric link section 9 with respect to the built-in disk 5. It is composed of a crank 53 of the rear, the lever 51 and the crank 53 is bent at an angle of about 90 degrees, as can be seen in FIG.

3 and 5, the lever 51 is a rod extending in order to connect the float 13 to the built-in disk 5, and the rear end of the lever 51 is provided in front of the built-in disk 5; The pin 55 is pivotally connected to the protruding lever bracket 65 and the front end is connected to the float 13. At this time, the rotary bushing 69 is formed at the rear end of the lever 51 to which the pin 55 is coupled, as shown in FIG. 5, so that the pin 55 can be more stably coupled to the lever 51. Make sure

3 and 5, the crank 53 is a short rod connected to the rear end of the lever 51 by about 90 ° and integrally connected to the rear end of the crank 53. The lower end of the crank 53 is guided by the pin 57. It is pivotally coupled to the outer circumferential surface of the shoe 41 to connect the guide shoe 41, the lever bracket 65, and the lever 51, respectively, and as can be seen in FIG. 5, the crank 53 also has a lever 51. As in the upper portion is connected to the rotary bushing 69 it is possible to stably maintain the coupling with the pin (55). At this time, the pin hole 67 of the lever bracket 65 to which the pin 55 is coupled is in the form of a slot whose longitudinal axis is longer than the horizontal axis, as shown in detail in FIG. When pivoting around 57, the pinhole 67 is not restrained at all.

Finally, the float 13 is a float that moves up and down in accordance with the water level in the storage tank 20, and is mounted at the free end of the operation link portion 11, that is, at the end of the lever 51, and thus its buoyancy and weight. And by rotating the lever 51 up and down in accordance with the weight of the lever 51 is located in the upper limit when the water level in the storage tank 20 is full water level, and at the lower limit when the low water level.

Now, the operation of the disk fixed float valve 1 according to the preferred embodiment of the present invention configured as described above will be described.

Disk fixed float valve 1 according to the present invention is a means for opening and closing the fluid supply pipe 10 connected to the storage tank 20, as shown in Figure 3, when the water level in the storage tank 20 becomes full, The lever 51 of the operation link portion 11 coupled to the lever bracket 65 of the chained disc 5 by the pin 55 is turned up as far as possible counterclockwise around the pin 55. Becomes

At this time, the guide shoe 41 coupled to the lower end of the crank 53 is located at the foremost side of the guide rod 35, and thus the electric link unit 9 is shown in solid line in FIG. As shown in the guide shoe 41, as far forward as possible. Accordingly, the sliding seat 7, which is slid along the outer circumferential surface 29 of the valve body 3 by the electric rod 45 and pulled forward as far as possible, is the conical part 37 of the conical part 37 of the built-in disk 5. ) To close the outlet 25 between the valve body 3 outlet end 23 and the cone 37.

On the contrary, as shown in FIG. 7, when the water level in the storage tank 20 reaches the low water level, the float 13 descends along the water level, so that the lever 51 floats in the position shown in FIG. 3. (13) Due to the weight, it turns clockwise around the pin 55 and reaches the lower limit.

As such, when the lever 51 of the operation link unit 11 starts to descend from the upper limit point, the crank 53 is also pivotally rotated clockwise about the pin 55 and the pin 57 is coupled to the lower end thereof. Guide shoe 41 is pushed back along the guide rod (35). At this time, the pin 55 is a rotation point of the crank 53, the front and rear position is unchanged, but the pin hole 67 to allow the rotation of the crank 53 connected to the guide shoe 41 constrained to move up and down Will move up and down along.

As the guide shoe 41 is pushed to the rear of the guide rod 35 as described above, the electric link unit 9 also starts to move rearward, and thus is connected to the electric link unit 9 through the electric rod 45. The sliding seat portion 7 also starts to move backwards and is separated from the conical portion 37 of the built-in disk 5 to gradually open the outlet 25.

Subsequently, when the water level reaches the low water level, as shown in Fig. 7, the float 13, the lever 51, and the crank 53 rotate clockwise to reach the lower limit, and the guide shoe 41 is also at the end. It is located on the side. As such, when the electric link unit 9 moves to the rear along the guide shoe 41 to the maximum, the sliding seat 7 is also maximized to the rear by the electric rod 45 as shown by hidden lines in FIGS. 7 and 4. It is pushed out to develop the outlet 25, whereby the float valve 1 is also fully opened.

At this time, the fluid supplied to the storage tank 20 through the outlet 25 collides with the cone portion 37 before being discharged from the outlet 25, and thus loses a substantial portion of the kinetic energy and attenuates the storage tank. Since it is discharged to 20, it becomes difficult to generate a vortex or a beat phenomenon in the fluid in the storage tank 20.

1 is a front sectional view schematically showing a conventional float valve.

Figure 2 is a front sectional view schematically showing a conventional high capacity valve.

Figure 3 is a front sectional view showing the disk fixed float valve of the present invention in a closed state.

4 is a plan sectional view of FIG.

5 is a right side view of FIG. 3.

6 is a left side view of FIG. 3;

Figure 7 is a front sectional view showing the disk fixed float valve of the present invention in an open state.

Description of the Related Art

1 disc fixed float valve 3 valve body

5: built-in disk 7: sliding sheet portion

9: electric link unit 10: fluid supply pipe

11: operation link unit 13: float

20: storage tank 21: inlet end

23: outlet 25: outlet

27: inner circumference 29: outer circumference

31: back 33: front

35: guide rod 37: cone

38: bevel 39: connecting plate

41: guide shoe 43: support arm

45: electric rod 51: lever

53: crank 55, 57: pin

59: flange 61: packing ring

63: pressure ring 65: lever bracket

67: pin hole 69: rotary bushing

Claims (4)

A tubular valve body 3 having an inlet end 21 connected to the fluid supply pipe 10 on one side and an outlet end 23 opened on the storage tank 20 on the other side thereof; A built-in disk (5) attached to the inner circumferential surface (27) of the valve body (3) and configured to form an outlet port (25) at a predetermined distance from the outlet end (23) of the valve body (3); Sliding seat portion that is slidably mounted to the outer peripheral surface 29 of the valve body (3) in close contact with the rear surface 31 of the built-in disk (5) to close the outlet 25 ( 7); An electric link part connected to an outer side of the sliding seat part 7 and sliding to contact or separate from the built-in disc 5 by axially moving the sliding seat part 7 relative to the built-in disc 5. (9); An operation link unit 11 connected to the center of the electric link unit 9 to relatively move the electric link unit 9 in the axial direction with respect to the built-in disk 5; And Float 13 is mounted to the free end of the operation link portion 11 to rotate the operation link portion 11 up and down by buoyancy or the weight of the operation link portion 11 and its own; Disc fixed float valves. According to claim 1, The built-in disk 5 is a guide rod 35 in the center of the front face 33 protrudes in the axial direction, The electric link unit 9, A guide shoe 41 inserted into the guide rod 35 to slide in the axial direction; A plurality of support arms 43 attached to an outer circumferential surface of the guide shoe 41 and extending radially about the guide shoe 41; And A plurality of transmissions coupled between an edge of the support arm 43 and an edge of the sliding seat portion 7 to move the sliding seat portion 7 axially in conjunction with the support arm 43. Rod (45); Disk fixed float valve, characterized in that consisting of. The method of claim 2, The operation link unit 11, A lever 51 one end of which is pivotally coupled to the built-in disc 5 and the other end of which is elongated so as to be mounted to the float 13; And A crank 53 having one end integrally connected to one end of the lever 51 and pivotally coupled to the built-in disk 5, and the other end pivotably coupled to an outer circumferential surface of the guide shoe 41; Disc fixed float valve, characterized in that consisting of. The method according to any one of claims 1 to 3, The built-in disk 5 has a conical portion 37 protruding inclined contact with the sliding seat portion 7 on the rear surface 31, the comb surface 38 of the cone portion 37 and the valve body (3) Disk fixed float valve, characterized in that fixed to the valve body (3) by a connecting plate (39) for connecting the inner circumferential surface (27).

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