KR102030537B1 - Butterfly Valve with Easy Release of Valve Disc - Google Patents

Abstract

The present invention relates to a butterfly valve for easily separating a valve disk capable of tightly blocking the flow of a fluid, preventing abrasion by touch, easily separating a disk after closing, and being excellently applied to a confectionery industry and a chemical plant industry for transporting big sugar and viscous fluids. The butterfly valve for easily separating a valve disk comprises: a sheet groove which forms a packing groove inside an end of one side of a valve body, includes a larger diameter than the packing groove, and is formed in the outside; a ring-shaped packing which is inserted into the packing groove and forms an elastic groove for installing an elastic member on one side toward the valve disk; and a ring-shaped sheet which is inserted into the sheet groove and is combined with the valve body to fix the packing. The present invention easily separates the valve disk by using elastic force of the elastic member to generate adhesion with the packing by residual of a sugar fluid and a viscous fluid.

Description

Butterfly Valve with Easy Release of Valve Disc

The present invention relates to a valve, and more particularly to the confectionery industry that closely performs the flow blocking of the fluid and prevents abrasion caused by contact, and at the same time, the disk is easily removed after closing to transport sugars and viscous fluids. The present invention relates to a butterfly valve that can be easily removed from a valve disc having excellent applicability to the chemical plant industry.

In general, the butterfly valve is installed in the valve body that is connected to the pipeline for transporting fluids, such as various industrial water, oil, so that the valve disk is rotatable due to the rotary shaft, and rotates the pipeline by rotating the drive device connected to the rotary shaft It opens and closes to control fluid flow.

The butterfly valve according to the prior art has a vertical butterfly valve in which a valve disc rotatably mounted inside the valve body by the operation of the manipulator is rotated in the left and right directions to open and close the flow path and the valve body when the manipulator is operated. In the drawing, the valve disc is classified as a horizontal butterfly valve that rotates in the vertical direction to open and close the flow path.

At this time, the valve body and the valve disk of the butterfly valve is manufactured by casting molding such as cast iron or cast steel, rubber material having durability and corrosion resistance against high temperature or high pressure fluid, chemicals, etc. so that the fluid is airtight at these contact surfaces Alternatively, a separate seat portion formed of a metal material is integrally mounted to the valve body and the valve disc, respectively.

In the case of using a rubber material having excellent elasticity as the material of the seat, the airtightness and index of the valve are significantly reduced due to the aging effect of the rubber material over a long period of time, so that the seat is frequently replaced, which is cumbersome and the maintenance cost is increased. Have

On the other hand, in the case of using a metal sheet of high strength, abrasion resistance and corrosion resistance such as stainless steel integrally used, that is, the seat portion of the metal material is forcibly fitted into the coupling groove of the valve body and the valve disk to be cast, so as to assemble Due to the crushing of the seat portion has a problem that the airtightness of the valve is inferior due to the leakage of fluid through the minute gap generated between the coupling groove and the seat portion.

In addition, when the metal sheet portion is fixed by welding to the valve body and the valve disk, a stress is generated according to the temperature change of the welded portion, and there is a shrinkage stress and a residual stress when the welded portion is cooled to room temperature. As a result, stress, corrosion, and cracking of the welded parts are generated during long-term use, which causes a problem of inferior airtightness of the valve due to leakage of fluid.

Such a conventional valve uses a separate packing to increase the sealing force. When the fluid flowing through the valve has viscosity or sugar, the fluid is hardened and adhered between the packing and the disk when the fluid is stopped and kept closed. There was a problem that can not be easily separated from the packing when the disk is re-operated for opening.

Publication No. 20-2010-0005539 (Reinforcement member coupling structure of valve disc Registration No. 20-0363525 (Distributed Butterfly Valve

The present invention has been made in order to solve the above problems, to provide a butterfly valve that is easy to remove the valve disk to install a packing in the contact portion of the valve disk to prevent contact wear phenomenon and easy separation. There is this.

In addition, another object of the present invention is to be easily separated using the elastic force of the elastic member so that the packing and adhesion caused by the residual of the viscous fluid or sugar fluid in the closed state of the valve disk.

In addition, another object of the present invention is to insert the contact end in contact with the packing in the closed state of the valve disc so that it is easily separated.

In addition, another object of the present invention is to move easily the contact end in contact with the packing in the closed state of the valve disk to be easily separated.

In addition, another object of the present invention is to prevent overloading the valve shaft and the handle by the packing and adhesive force in the closed state of the valve disc.

The butterfly valve which can be easily separated from the valve disc according to an embodiment of the present invention includes a valve body having a fluid passage through which the fluid flows, a valve disc for opening and closing the fluid passage of the valve body, and the valve disc. A disk rotating butterfly valve having a valve shaft for rotating in a fluid passage of the valve body and a handle mounted on an outer surface of the valve body to rotate the valve shaft, wherein the inside of one end of the valve body is provided. Forming a packing groove, the seat groove is formed on the outside with a larger diameter than the packing groove, the ring groove is inserted into the packing groove to form a ring-shaped packing to form an elastic groove for the installation of the elastic member on one side facing the valve disk However, the packing is formed in the shape of a ring having a cross-sectional reverse memory form to form a fitting groove on one side facing the valve disk, A ring-shaped soft packing is inserted into the fitting groove and forms an elastic groove for installing the elastic member on one side facing the valve disc. The ring shape is inserted into the seat groove and coupled to the valve body to fix the packing. Configure the sheet.

On the other hand, the packing constitutes a butterfly valve that can be easily separated from the valve disc, characterized in that composed of Teflon.

The packing is formed in a ring shape having a cross-section inverse memory shape to form a fitting groove on one side facing the valve disc, and is inserted into the fitting groove and elastic for installation of an elastic member on one side facing the valve disc. It constitutes a butterfly valve easily detachable from the valve disc, characterized in that the ring-shaped soft packing to form a groove.

Here, the elastic member constitutes a butterfly valve that can be easily separated from the valve disk, characterized in that the elastic material of the 'C' form.

In addition, the valve disk is a valve, characterized in that the disk-shaped contact end in contact with the packing, the disk body is coupled so that the contact end is inserted and withdrawn, the solenoid valve fixed to the inside of the disk body is configured to be connected to the contact end The butterfly valve can be easily removed from the disk.

In addition, the valve disk is in the form of a disc in contact with the packing in the rear end of the contact end to form a lag gear coupled to the locking mechanism in the form of a deciduous open to both ends on the outer end, the locking end of the contact end is inserted Disk body for forming grooves on both sides, the valve shaft for rotating the valve disk and the handle is installed through the auxiliary shaft for forming an auxiliary handle for rotation, the lower end of the auxiliary shaft is coupled to the gear connected to the gear gear A butterfly valve is provided that facilitates valve disc detachment, characterized by constituting a spur gear.

According to an embodiment of the present invention, the packing is installed in the contact portion of the valve disk has the effect of preventing contact wear phenomenon and easy separation.

Then, in the closed state of the valve disc there is an effect to be easily separated using the elastic force of the elastic member so that the packing and adhesion caused by the residual of the viscous fluid or saccharide fluid.

In addition, there is an effect to be easily released by inserting the contact end in contact with the packing in the closed state of the valve disc.

In addition, there is an effect to move easily in contact with the packing in the closed state of the valve disc to be separated.

In addition, there is an effect to prevent the overload to the valve shaft and the handle by the packing and adhesive force in the closed state of the valve disc.

1 is a cross-sectional view of a butterfly valve easily detachable valve disc according to the present invention;
Figure 2 is a side view of a butterfly valve easy to escape valve valve according to the invention,
3 is a plan view and a side view of a valve disc according to the present invention;
4 is an exploded perspective view and a cross-sectional view of a packing and an elastic member according to a first embodiment of the present invention;
5 is an exploded perspective view and a cross-sectional view of a packing, a soft packing, and an elastic member according to a second embodiment of the present invention;
6 is a sectional view of a butterfly valve to which a valve disc according to a first embodiment of the present invention is applied;
7 is a front view and a side view of the contact end in Figure 6, a front view and a side view of the disk body,
8 is a cross-sectional view of a butterfly valve in which the valve disk according to the first embodiment of the present invention shows a state of movement of a contact end by driving a solenoid valve by operation of a switch;
9 is a sectional view of a butterfly valve to which a valve disc according to a second embodiment of the present invention is applied;
10 is a side view and a rear view of the contact end according to the second embodiment,
Fig. 11 is a partially cutaway front view of the disc body according to the second embodiment.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art may easily implement the present invention. As those skilled in the art would realize, the described embodiments may be modified in various different ways, all without departing from the spirit or scope of the present invention. Like parts are designated by like reference numerals throughout the specification.

1 to 11, the configuration of the present invention will be described with reference to the accompanying drawings, a valve body 10 having a fluid passage 11 penetrated so that fluid can flow, and the valve body ( A valve disc 20 for opening and closing the fluid passage 11 of 10), a valve shaft 30 for rotating the valve disc 20 in the fluid passage of the valve body, and an outer surface of the valve body. And constitutes a handle 31 for rotating the valve shaft 30.

At this time, the packing groove 12 is formed on the inner side of one end of the valve body 10, and the seat groove 13 is formed to the outside with a larger diameter than the packing groove 12.

The packing groove 12 and the seat groove 13 is formed in a step shape and the bolt groove is formed in the seat groove (13).

The packing 40 of a ring shape is inserted into the packing groove 12 and forms an elastic groove 42 for installation of the elastic member 41 on one side facing the valve disc 20.

In the first embodiment, the packing 40 is composed of Teflon, the Teflon material is a frictional resistance is small, even if the fluid remaining amount is applied by applying the configuration.

In the second embodiment, the packing 40 is formed in a ring shape having a cross section in the form of an inverse memory, thereby forming a fitting groove 44 on one side facing the valve disc 20.

The ring-shaped soft packing 43 is inserted into the fitting groove 44 and forms an elastic groove 42 for installing the elastic member 41 on one side facing the valve disc 20.

On the other hand, the elastic member 41 is composed of an elastic material of the 'C' shape, when the elastic member 41 is coupled to the elastic groove 42, the elastic force acts toward the center of the packing 40.

The seat 50 is inserted into the seat groove 13 to form a ring-shaped seat 50 coupled to the valve body 10 to fix the packing 40.

The seat is configured to prevent the packing 40 inserted into the packing groove 12 from being pushed to the opposite side in contact with the fixing and closing of the valve disc 20 and to be disassembled when the packing 40 is replaced. .

In the first embodiment, the valve disc 20 forms a contact end 21 in the form of a disc that contacts the packing 40.

The contact end 21 forms a disk body 22 to be coupled to be drawn out.

The solenoid valve 23 is fixed to the inside of the disk body 22 is configured to be connected to the contact end 21, the solenoid valve 23 is the front of the disk body 22 to which the valve disk 20 is coupled The power line 23a connected to the solenoid valve 23 through the hollow hole 32 of the valve shaft 30 through the power line groove recessed to install a plurality of separate installation grooves and share with the installation groove. It is exposed and connected with the switch 23b.

In addition, the valve shaft 30 communicates with the hollow hole 32 to prevent a short circuit of the power supply line 23a during rotation, and removes about 1/4 of the end surface of the valve shaft 30 to form a spare hole for power supply. The line 23a is located in the clearance hole even when the valve shaft 30 rotates so that the line 23a is not disconnected.

That is, the solenoid valve 23 is operated so that the contact end 21 is in close contact with the disk body 22 when the valve disk 20 is open for the flow of the fluid, and when the solenoid valve 23 is in contact with the packing 40 The contact end 21 is configured to operate so as to be spaced apart from the disc body 22.

In the second embodiment, the valve disk 20 is a disk in contact with the packing 40, the rear surface is a rack gear 25 is coupled to the engaging port 24 in the form of a depressed to the outside open at both ends. Forming a contact end 21 to form a.

A disk body 22 is formed on both sides of the locking groove 26 into which the locking hole 24 of the contact end 21 is inserted. The disk body 22 is inserted into the front surface of the disk body 22 so that the rack gear 25 is inserted therein. While forming the installation space (22a), both sides of the inner wall surface engaging holes 24 of the installation space (22a) is formed to form a locking groove 26 to slide.

It is installed through the valve shaft 30 and the handle 31 for rotating the valve disk 20 and forms an auxiliary shaft 28 for forming an auxiliary handle 28b for rotation.

The lower end of the auxiliary shaft 28 constitutes a spur gear 29 coupled to the gear gear 25 to be connected to the gear.

That is, the auxiliary shaft 28 is coupled to the valve shaft 30 and the bearing 28a so as not to be affected when rotating each other, the auxiliary shaft 28 is coupled to the inside of the bearing 28a and the valve shaft to the outside. 30) is combined to form a tilting valve (100).

Looking at the state of use of the tilting valve 100 is configured as described above are as follows.

First, the tilting valve 100 inserts the valve disc 20 through the fluid passage 11 of the valve body 10 in a state where the seat 50 and the packing 40 are separated.

Then, the valve disk 20 and the valve shaft 30 coupled to the handle 31 coupled to the upper portion of the valve body 10 is coupled, the center of the valve body 10 and the center of the valve shaft 30 and The center of the valve disk 20 is eccentrically coupled by about 2mm is rotated by rotating the valve shaft 30 even when the valve disk 20 in contact with the packing 40.

Thereafter, the packing 40 according to the first embodiment has the packing 40 in the packing groove 12 so that the side thereof faces the valve disc 20 after the elastic member 41 is fastened to the packing groove 12. Insert, and the fastening of the seat 50 to the outside of the packing 40 by using a bolt.

At this time, when the valve disc 20 rotates the handle 31 for opening in a state in contact with the packing 40 to close the fluid passage 11, the valve shaft 30 and the valve disc 20 rotate together. At the same time, the elastic force of the elastic member 41 acts toward the center of the valve body 10 so that the packing 40 and the valve disc 20 can be easily detached even when the packing 40 and the valve disc 20 are adhered by viscous or saccharide residual liquid. There is a characteristic.

On the other hand, in the packing 40 according to the second embodiment, the soft packing 43 into which the elastic member 41 is inserted into the elastic groove 42 is inserted into the fitting groove 44 of the packing 40. The packing 40 is inserted into the packing groove 12 so that 43 is directed toward the valve disc 20, and the fastening of the seat 50 to the outside of the packing 40 using bolts is completed.

Here, when the valve disc 20 rotates the handle 31 for opening in the state in contact with the packing 40 to close the fluid passage 11, the valve shaft 30 and the valve disc 20 rotate together. At the same time, the elastic force of the elastic member 41 fastened to the soft packing 43 compresses toward the center of the valve body 10 so that the packing 40 and the valve disc 20 become viscous or saccharide residue liquid due to a strong tilting phenomenon. There is a feature that can be easily separated even in the adhesive state.

On the other hand, the valve disk 20 according to the first embodiment is fixed to install the solenoid valve 23 in a circular arrangement in the installation space (22a) formed in front of the disk body 22, the center of the valve shaft 30 It is connected to the power line 23a introduced through the hollow hole 32 formed in the power line 23a is connected to the switch 23b installed around the valve body 10 is installed to receive power.

The assembly is completed by fastening with the operating rod 23c of the solenoid valve 23 disposed in a circular manner through the formed bolt hole of the contact end 21.

At this time, when power is not applied through the switch 23b, the solenoid valve 23 operates the operating rod 23c so that the contact end 21 protrudes forward of the disk body 22, and electricity is applied. The operating rod 23c is operated.

As such, when the switch 23b is operated for opening while the contact end 21 of the valve disc 20 is in contact with the packing 40 to close the fluid passage 11, the operation rod 23c is inserted. The contact end 21 is characterized in that it can be easily separated even if the packing 40 is adhered by the viscous or saccharide residual liquid.

On the other hand, the valve disk 20 according to the second embodiment of the auxiliary shaft (28a) is installed in the upper and lower ends of the hollow hole 32 of the valve shaft 30 and the auxiliary handle 28b is installed at the upper end ( After fitting 28), the spur gear 29 is coupled to the lower end of the auxiliary shaft 28 exposed to the installation space 22a of the disc body 22.

Then, one of the locking holes 24 of the contact end 21 is first inserted into the locking groove 26, and then the lag gear 25 is flat while inserting the other locking holes 24 into the other locking grooves 26. Gear assembly with the gear 29 is completed.

Rotating the auxiliary handle 28b in the forward / reverse direction changes the rotational force of the auxiliary shaft 28 and the spur gear 29 to horizontal motion through the rack gear 25 so that the contact end 21 is caught by the locking hole 24. And slide to move by the fastening of the locking groove 26, in the present invention, the contact end 21 moves the movement distance is limited to about 0.5 ~ 1mm range.

Thus, in order to open in a state in which the contact end 21 of the valve disc 20 is in contact with the packing 40 to close the fluid passage 11, the auxiliary handle 28b is first rotated by rotating the auxiliary handle 28b. While the contact end 21 is horizontally moved by the rotation of the spur gear 29, the contact end 21 can be easily detached even if the contact end 21 is adhered to the packing 40 by viscous or saccharide residual liquid.

In the above description of the tilting valve 100 according to the present invention with reference to the accompanying drawings, the present invention has been described with a particular shape and direction, but the present invention can be variously modified and changed by those skilled in the art. It should be interpreted as being included in the scope of rights.

10: valve body 11: fluid passage
12: Packing groove 13: Seat groove
20: valve disc 21: contact end
22: disc body 22a: installation space
23: solenoid valve 23a: power line
23b: switch 23c: operating rod
24: latch 25: lag gear
26: hanging groove
28: auxiliary shaft 28a: bearing
29: spur gear 30: valve shaft
31: handle 32: hollow hole
40: packing
41: elastic member 42: elastic groove
43: fitting groove 44: soft packing
50: seat 100: tilting valve

Claims (6)

A valve body 10 having a fluid passage 11 penetrated therethrough, a valve disc 20 for opening and closing the fluid passage 11 of the valve body 10, and the valve disc 20. To a disk rotating butterfly valve having a valve shaft (30) for rotating the valve shaft (30) in the fluid passage of the valve body and a handle (31) mounted on an outer surface of the valve body for rotating the valve shaft (30). In
A seat groove 13 is formed on the inner side of one end of the valve body 10 and is formed on the outside with a larger diameter than the packing groove 12,
Inserted into the packing groove 12 to form a ring-shaped packing 40 to form an elastic groove 42 for installation of the elastic member 41 on one side facing the valve disk 20,
The packing 40 is formed in a ring shape having a cross section of an inverse memory shape, and forms a fitting groove 44 on one side facing the valve disc 20.
It is inserted into the fitting groove 44 and formed of a flexible packing 43 in the form of a ring to form an elastic groove 42 for the installation of the elastic member 41 on one side facing the valve disc 20,
Butterfly valve is easy to remove the valve disc, characterized in that the seat 50 is inserted into the seat groove 13 is coupled to the valve body 10 to secure the packing (40). delete delete delete According to claim 1, wherein the valve disk 20 is a disk-shaped contact end 21 in contact with the packing 40,
The disk body 22 is coupled so that the contact end 21 is inserted and drawn out,
The butterfly valve is easy to be released valve valve, characterized in that the disk body 22 is configured so that the fixed solenoid valve 23 is connected to the contact end (21). According to claim 1, The valve disk 20 is a disk in contact with the packing 40 in the form of a retractor 25 is coupled to the latching opening 24 in the form of a disc open to both ends on the rear surface toward the outside Contact end 21 to form a,
Disk body 22 to form the engaging groove 26 on both sides into which the engaging port 24 of the contact end 21 is inserted,
An auxiliary shaft 28 installed through the valve shaft 30 and the handle 31 for rotating the valve disk 20 and forming an auxiliary handle 28b for rotation;
Butterfly valve easy to be separated from the valve disc, characterized in that the lower end of the auxiliary shaft (28) constitutes a spur gear (29) coupled to be connected to the gear gear (25).

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