KR200165242Y1 - 3-ring metal seat butterfly valve - Google Patents

Abstract

The present invention relates to a leak prevention apparatus of a metal seat butterfly valve installed in a pipeline through which various fluids such as water, gas, oil, chemicals, and the like are passed.

On the outer circumferential surface of the disk, the valve disk (VALVE DISC) is secured by fixing the 'I' type seat ring of large, medium, small and large, which is flexible enough to withstand ultra high temperature and cryogenic temperature at the middle part of the fixing part and the crimping part. When the fluid flows in the direction of the arrow when the valve is closed, the higher the pressure, the higher, the middle, and the lower disk seating.The upper and lower seating will receive pressure. However, when the oil leaks, the 'small' seat ring is pressurized to completely block the leak.In this case, the large, medium and small disk seatings are made of a very strong material, which makes the ring a CUSHION. It is related to the fluid blocking of 3-ring metal seat butterfly valve so that there is no impact on the body seat when opening and closing the valve by inserting (RING) in the middle of large and small.

Description

Three ring metal seat butterfly valve {3-RING METAL SEAT BUTTERFLY VALVE}

The present invention relates to a three-ring metal seat butterfly valve used for ultra high temperature and ultra low temperature,

Conventionally, one rubber type seat ring is fixed to the valve disc and the body, so the rubber seat is severely corroded and its life is shortened. It is not possible to use the fluid at high or low temperature. Due to the need to use it, there was a closed stage that delivery time and A / S were not made immediately. In Korea, although the metal seat valve is manufactured, the material should be selected to make the seat flexible.

Because the disc seat and body seat were fixed, they did not function as metal seat valves.

The present invention inserts the upper, middle and lower disk sheeting (4) having a strong elasticity and flexibility of the material in the middle portion of the disk (2) circumference to solve the above problems, and the end of the circumference when closing It is to be pressed firmly to prevent the body sheet 6 and the fluid flow.

At this time, when the high-pressure fluid passes in the direction of the arrow, it consists of upper, middle, and lower disk seating rings (4) .If the upper seating does not receive all the pressure, the middle seating is under pressure. If it still leaks, the cow's seat ring is pressurized to completely block the leak.

Insert the seat gland 10 so that the upper, middle, and lower disc seatings 4 do not play, and evenly tighten in the circumferential direction with several wrench bolts 9.

The design of the present invention is that the rubber seat valve is made of graphite metal (GRAPHITE METAL) material, which allows the valve seat to withstand the high and low temperatures. To shut off the pressure

In addition, the material of the seat ring is strong so that the two CUSHION device without damaging the seat portion of the valve body can be used in an ultra high pressure or ultra high temperature pipeline.

Figure 1 is a longitudinal cross-sectional view showing the configuration of the present invention

2 is a partially enlarged cross-sectional view showing the configuration and operation of the present invention

(Detailed view of 'A' section)

3 is a partially enlarged cross-sectional view showing the configuration and operation of the present invention

(Detailed view of 'I')

* Explanation of symbols for main parts of the drawings

1: Body 2: Disk (DISC)

3: BARE STEM 4: Upper, Middle, Lower Disk Seating

(DISC SEAT RING)

5: Upper and middle disk seat cussion ring 6: Body seat (SEAT)

(CUSHION RING)

7: Body seat boss (BOSS) 8: Disc boss (DISC BOSS)

9: Wrench Bolt (LENCH BOLT) 10: Seat Gland

11: nut (NUT) 12: spring container

(SPRING CONTAINER)

13: Spring (SPRING) 14: Ring

15: GLAND COMPONENT 16: Grand (GLAND)

17: gasket 18: upper housing (HOUSING)

19: STAY BOLT 20: thrust washer

(THRUST WASHER)

21: fixing nut (NUT) 22: wrench bolt (LENCH BOLT)

23: upper and lower pin 24: lower housing

25: Bolt 26: End Cover

27: Gasket 28: Flange

29: KEY

Figure 1 is a longitudinal cross-sectional view showing the configuration of the subject innovation

Figure 2 is a partial enlarged view showing the configuration and operation of the present invention ('a' partial detail) and Figure 3 is a partial enlarged view ('I' partial detail) showing the configuration and operation of the present invention, Figures 1 to As shown in FIG.

The shaft 3 is inserted into the center of the body 1, and the middle and lower ends of the shaft 3 insert the boss of the disk 2 and the upper and lower pins 23 and the lower pins to fix the shaft 3. Secure with.

The upper housing 18 is inserted into the outer circumferential surface of the shaft 3, and the lower housing 24 is inserted into the lower portion of the shaft 3,

In order to prevent the shaft 3 from sagging, the end cover 26 is mounted and several bolts 25 are fastened to fix the end cover 26.

The upper housing 18 is inserted into the outer circumferential surface of the shaft 3, the grand component 15 is inserted into the upper end of the upper housing 18, the ring 14 is placed thereon, and the spring is placed on the upper portion of the ring 14. (13) The spring container 12 may be appropriately fastened by the nut 11 on the top of the stay bolt 19 inserted and covered with the spring container 12.

In addition, a key 29 is planted in the upper shaft of the shaft 3 so as to enable the reduction gear to be integrated with the gear in the reduction gear.

In addition, a cylindrical disk 2 is mounted on the inner surface of the body sheet 6, and upper, middle and lower disk sheetings 4 are inserted into the peripheral surface of the center of the disk 2, and the upper, middle and lower disks are inserted. The seat gland 10 is placed on the top of the disc seat ring 4 and clamped in the circumferential direction with several wrench bolts 9.

In particular, two upper, middle and lower disk seat CUSHION rings (5) are inserted between the upper, middle and lower disk seating rings (4). (6) was to be without damage.

This invention made in this way

When the shaft 3 is rotated as a speed reducer, the shaft 3 rotates and the disk 2 connected to the upper boss and the lower boss rotates about 90 degrees left and right to open and close. The seat ring 4 and the body sheet 6 are not compressed to become a fluid, and when opened at 90 degrees, the fluid passes.

The present invention is a graphite metal material capable of withstanding ultra-high temperature and cryogenic temperature, using a flexible 'I' type upper, middle and lower disk sheeting (4), the higher the pressure of the fluid in the conduit, the higher the phase, The upper and lower disk seat cushions (3) are made of upper, middle, and lower disk seat rings (4) in order to prevent the breakage of the seat ring when the middle and lower disk seat rings (4) are opened in sequence and further compressed. It is effective to prevent breakage of sheet and to prevent leakage by inserting CUSHION.

Claims (1)

A cylindrical disk 2 is mounted on the inner surface of the valve body 1, and upper, middle and lower disk seatings 4 are inserted into the peripheral surface of the center of the disk 2, and the upper, middle and lower disks are inserted. On the top of the seat ring (4) put the seat grand (10) and tighten the circumferential direction with several wrench bolts (9), In addition, by inserting two upper and middle disk seat CUSHION rings 3 between the upper, middle and lower disk seating rings 4, the high pressure fluid is blocked as well as the CUSHION when the valve disk 2 is opened and closed. The three-ring metal seat butterfly valve is designed to prevent damage to the body seat (6) of the valve. (3-RING METAL SEAT BUTTERFLY VALVE)