CN212028561U

CN212028561U - Flange type turbine butterfly valve

Info

Publication number: CN212028561U
Application number: CN202020699453.9U
Authority: CN
Inventors: 陈银宝
Original assignee: Tianjin Dingruite Valve Manufacturing Co ltd
Current assignee: Tianjin Dingruite Valve Manufacturing Co ltd
Priority date: 2020-04-30
Filing date: 2020-04-30
Publication date: 2020-11-27
Anticipated expiration: 2030-04-30

Abstract

The utility model discloses a flange formula turbine butterfly valve belongs to flange formula turbine butterfly valve technical field, the pressure sensitive valve comprises a valve seat, disk seat internal surface spraying has the wearing layer, the wearing layer surface bonds there is abrasive rubber, the disk seat internal rotation is connected with the valve, the disk seat surface bonds there is the rubber shock pad, rubber shock pad surface parcel has the shell, disk seat bottom fixedly connected with damper box, the bottom bonds there is the damping piece in the damper box, the bottom both sides can be dismantled in the damper box and be connected with damping spring, the damping spring top is located the inside of recess, the bottom of montant is seted up to the recess, montant bottom clearance connection has damping spring, montant top fixedly connected with disk seat. The rubber shock pad on the surface of the valve seat is matched with a shock absorption spring in the shock absorption box to absorb shock to the valve seat, so that the displacement of the valve seat after shock is avoided; the wear-resistant rubber on the inner surface of the valve seat is matched with the wear-resistant layer to improve the whole wear-resistant capability of the valve seat and prolong the service life of the valve seat.

Description

Flange type turbine butterfly valve

Technical Field

The utility model relates to a flange formula turbine butterfly valve technical field especially relates to a flange formula turbine butterfly valve.

Background

The turbine flange butterfly valve (also called turbine flange flap valve) generally adopts a three-eccentric multi-layer metal hard sealing structure, is widely used for industrial pipelines of metallurgy, electric power, petrochemical industry, water supply and drainage, municipal construction and the like with medium temperature less than or equal to 425 ℃ and is used as a flow regulating and load-breaking fluid. The valve adopts a three-eccentric structure, and the sealing surfaces of the valve seat and the disc plate are made of stainless steel with different hardness. The common connection mode of the flange butterfly valve of the pizza turbine is divided into a flange type turbine stainless steel butterfly valve and a wafer type stainless steel butterfly valve.

The patent No. CN108980375A discloses a novel turbine butterfly valve device, wherein a thread and a pin hole are arranged in a taper pin device, so that the positioning connection effect is greatly improved; the hand wheel is provided with the bearing, so that the operation is more convenient, and the efficiency of the hand wheel is greatly improved; the bottom of the rotating shaft is additionally provided with the shaft sleeve which can be used for preventing skidding and improving the stability of the rotating shaft.

The flange type turbine butterfly valve in the prior art has the following defects: 1. the liquid generates vibration in the dynamic flow of the valve seat, the valve seat vibrates and gradually tilts to loosen the connection part, and the connection part leaks water after long-time use; 2. the liquid contains impurities, the impurities contact with the inner surface of the valve seat when flowing along with water to abrade the surface of the valve seat, the sealing performance between the valve seat and the valve is poor after long-time abrasion, and the service life of the whole valve is short; to this end, we propose a flange-type turbine butterfly valve.

SUMMERY OF THE UTILITY MODEL

The utility model provides a flange type turbine butterfly valve, a rubber shock pad on the surface of a valve seat is matched with a shock absorption spring in a shock absorption box to absorb shock to the valve seat, and the displacement of the valve seat after shock is avoided; the wear-resistant rubber on the inner surface of the valve seat is matched with the wear-resistant layer to improve the whole wear-resistant capability of the valve seat and prolong the service life of the valve seat.

The utility model provides a specific technical scheme as follows:

the utility model provides a pair of flange formula turbine butterfly valve, comprises a valve seat, disk seat internal surface spraying has the wearing layer, the wearing layer surface bonds there is wear-resisting rubber, the disk seat internal rotation is connected with the valve, the disk seat surface bonds there is rubber shock pad, rubber shock pad surface parcel has the shell, disk seat bottom fixedly connected with damper box, the bottom bonds there is the damping piece in the damper box, the bottom both sides can be dismantled and be connected with damping spring in the damper box, the damping spring top is located the inside of recess, the bottom of montant is seted up to the recess, montant bottom gap connection has damping spring, montant top fixedly connected with disk seat.

Optionally, the valve seat is connected with a flange seat a in an interference manner at two ends, the flange seat a extends outwards to form a clamping edge, and the clamping edge is connected with a clamping groove in a clamping manner.

Optionally, the clamping groove is formed in the surface of the flange seat b, the flange seat b is fixedly connected with a water pipe, and the flange seat b is bolted with the flange seat a through a bolt.

Optionally, a screw hole is formed in the surface of the flange seat a, and a sealing ring is bonded to the surface of the flange seat a.

Optionally, the welding of disk seat top has the link, the link top bolt joint has the headstock, the headstock right side can be dismantled and be connected with the hand wheel.

The utility model has the advantages as follows:

the embodiment of the utility model provides a flange formula turbine butterfly valve:

1. the rubber shock pad on the surface of the valve seat is matched with a shock absorption spring in the shock absorption box to absorb shock to the valve seat, so that the displacement of the valve seat after shock is avoided; when liquid flows in the valve seat, the liquid generates vibration due to the flow of the liquid, the outer surface of the valve seat is bonded with a rubber shock pad which is made of rubber, the rubber has a curled long-chain molecular structure and weak secondary force among molecules, so that the rubber material presents unique viscoelastic performance, thereby having good shock absorption, sound insulation and buffering performance, can absorb the vibration that liquid flow transmitted for the disk seat, the disk seat bottom is connected with the surge tank, be connected with damping spring through the montant in the surge tank, give the damping spring of montant decurrent effort to the montant bottom during the disk seat vibration and compress, damping spring wants the reconversion to give the effort of montant an ascending effort and disk seat for the montant to offset, damping spring uses the vibration that produces when can absorb and liquid flow with the cooperation of rubber shock pad, avoid disk seat vibration displacement to cause the junction to leak crooked.

2. The wear-resistant rubber on the inner surface of the valve seat is matched with the wear-resistant layer to improve the integral wear-resistant capability of the valve seat and prolong the service life of the valve seat; disk seat internal surface coats and has the wearing layer, the wearing layer is ceramic wear-resistant coating, disk seat internal surface coats and can improve 5 to 10 times with ceramic wear-resistant coating back surface hardness, can reduce the surface wear by a wide margin, improve the wearability of disk seat, the wearing layer surface bonds and has wear-resistant rubber, the wear-resistant rubber material is fluororubber, good heat resistance and wearability have, wear-resistant rubber contacts with the interior debris of the liquid through the disk seat, debris flow in-process wears with the wear-resistant rubber contact, can avoid debris direct and disk seat internal surface contact to cause wearing and tearing, improve the whole wearability of disk seat, prolong its life.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

Fig. 1 is a schematic view of an overall structure of a flange-type turbine butterfly valve according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram of a butterfly valve connection of a flange-type turbine butterfly valve according to an embodiment of the present invention;

fig. 3 is a schematic structural diagram of a valve body of a flange-type turbine butterfly valve according to an embodiment of the present invention.

In the figure: 1. a power box; 2. a connecting frame; 3. a hand wheel; 4. a flange seat a; 5. edge clamping; 6. a valve; 7. a screw hole; 8. a valve seat; 9. a water pipe; 10. a flange seat b; 11. a seal ring; 12. a bolt; 13. a card slot; 14. a damper box; 15. a damping spring; 16. a damping block; 17. a vertical rod; 18. a housing; 19. a rubber shock pad; 20. a wear layer; 21. wear-resistant rubber; 22. and (4) a groove.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be described in further detail with reference to the accompanying drawings, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

A flange-type turbine butterfly valve according to an embodiment of the present invention will be described in detail with reference to fig. 1 to 3.

Referring to fig. 1-3, the embodiment of the utility model provides a flange formula turbine butterfly valve, including

disk seat

8, 8 internal surface spraying of disk seat has wearing layer 20, 20 surface bonding of wearing layer has abrasive rubber 21, 8 internal rotations of disk seat are connected with

valve

6, 8 surface bonding of disk seat have rubber shock pad 19, 19 surface wrapping of rubber shock pad have shell 18, 8 bottom fixedly connected with surge tank 14 of disk seat, 14 bottom end bonding of surge tank have damping block 16, 14 bottom end both sides can be dismantled in the surge tank and be connected with

damping spring

15, 15 tops of damping spring are located the inside of recess 22, recess 22 sets up in the bottom of

montant

17, 17 bottom gap connection of montant has damping

spring

15, 17 top fixedly connected with disk seat 8 of montant.

The example, 8 rotations of disk seat are connected with valve 6, when valve 6 rotates and is parallel with 8 openings of disk seat, disk seat 8 is closed, liquid can not pass through disk seat 8, when valve 6 rotates and has certain quick-witted turned angle with 8 openings of disk seat slopes, disk seat 8 is opened, liquid can flow out from between valve 6 and disk seat 8, damping piece 16 has certain damping effect, can avoid damping spring 15 flexible process to cause adverse effect, 14 bottoms of surge tanks are parallel with flange seat a4 bottoms, can assist 8 rigidity of disk seat, avoid the fixed back slope of disk seat 8 to both sides, montant 17 top adaptation disk seat 8 surface shape, montant 17 top is the arc and connects on disk seat 8 surface.

Referring to fig. 1, the two ends of the valve seat 8 are connected with flange seats a4 in an interference manner, the flange seats a4 extend outwards to form clamping edges 5, and the clamping edges 5 are connected with clamping grooves 13 in a snap-fit manner.

Illustratively, the clamping edge 5 is positioned outside the flange seat a4, the clamping edge 5 is inserted into the clamping groove 13 in the flange seat b10, so that the flange seat a4 and the flange seat b10 are fixed in position, and the two flange seats rotate against each other to align the screw holes 7, thereby facilitating installation.

Referring to fig. 2, the clamping groove 13 is opened on the surface of a flange seat b10, a water pipe 9 is fixedly connected to the flange seat b10, and a flange seat a4 is bolted to the flange seat b10 through bolts 12.

For example, the outer surface of the flange seat b10 is provided with a clamping groove 13, the clamping edge 5 is clamped in the clamping groove 13, the flange seat can be conveniently fixed, and the water pipe 9 is connected with the flange seat a4 on the valve seat 8 through the flange seat b 10.

Referring to fig. 1 and 2, a screw hole 7 is formed in the surface of the flange seat a4, and a sealing ring 11 is bonded to the surface of the flange seat a 4.

Illustratively, screw holes 7 are arranged around the surface of the flange seat a4, bolts 12 pass through the screw holes 7 to fix the flange seat a4 and the flange seat b10, and a sealing ring 11 is adhered to the surface of the flange seat a4 to seal between the flange seat a4 and the flange seat b 10.

Referring to fig. 1, a connecting frame 2 is welded at the top end of the valve seat 8, a power box 1 is bolted at the top end of the connecting frame 2, and a hand wheel 3 is detachably connected to the right side of the power box 1.

Illustratively, the handwheel 3 rotates to drive the transmission mechanism in the power box 1 to rotate, the transmission mechanism rotates to drive the rotating shaft in the connecting frame 2 to rotate, and the rotating shaft rotates to drive the valve 6 to rotate.

When in use, the valve seat 8 is placed at the joint of the ground, the valve seat 8 is moved after the position of the valve seat 8 is adjusted, the clamping edge 5 on the flange seat a4 is clamped into the clamping groove 12 on the flange seat b10 of the water pipe 9, the position of the water pipe 9 is adjusted, the screw hole 7 on the flange seat a4 and the screw hole 7 on the flange seat b10 are aligned, the screw bolt 12 passes through the screw hole 7 and then screws up the screw nut, the flange seat a4 and the flange seat b10 are tightly connected, the sealing ring 11 on the flange seat a4 seals the joint, the water pipe 9 is connected on both sides of the valve seat 8, then the hand wheel 3 is rotated, the hand wheel 3 rotates to drive the transmission mechanism in the power box 1 to rotate, the transmission mechanism rotates to drive the rotating shaft in the connecting frame 2, the rotating shaft rotates to drive the valve 6 to rotate and incline for a certain angle, at the moment, liquid flows from the gap between the valve 6 and the valve seat 8, the liquid, the rubber has a curled long-chain molecular structure and weak secondary force among molecules, so that the rubber material presents unique viscoelastic performance, and has good shock absorption, sound insulation and buffering performances, the rubber material can absorb the vibration transmitted to the valve seat 8 by liquid flowing, the bottom end of the valve seat 8 is connected with a damping box 14, a damping spring 15 is connected in the damping box 14 through a vertical rod 17, the damping spring 15 at the bottom end of the vertical rod 17 is compressed by a downward acting force given to the vertical rod 17 when the valve seat 8 vibrates, the damping spring 15 is shortened and then wants to recover to an original shape and offsets the upward acting force given to the vertical rod 17 by the valve seat 8, the damping spring 15 is matched with a rubber damping pad 19 to absorb the vibration generated when the liquid flows, the inner surface of the valve seat 8 is coated with a wear-resistant layer 20, the wear-resistant layer 20 is a ceramic wear-resistant coating, the surface of the valve seat 8 is, the surface abrasion can be greatly reduced, the wear resistance of the valve seat 8 is improved, the wear-resistant rubber 21 is bonded on the surface of the wear-resistant layer 20, the wear-resistant rubber 21 is made of fluororubber and has excellent heat resistance and wear resistance, the wear-resistant rubber 21 is in contact with impurities in liquid passing through the valve seat 8, the impurities are in contact with the wear-resistant rubber 21 in the flowing process to be abraded, the impurities can be prevented from being directly in contact with the inner surface of the valve seat 8 to cause abrasion, and the service life of the valve seat is prolonged.

The utility model relates to a flange type turbine butterfly valve, which comprises a power box 1; 2. a connecting frame; 3. a hand wheel; 4. a flange seat a; 5. edge clamping; 6. a valve; 7. a screw hole; 8. a valve seat; 9. a water pipe; 10. a flange seat b; 11. a seal ring; 12. a bolt; 13. a card slot; 14. a damper box; 15. a damping spring; 16. a damping block; 17. a vertical rod; 18. a housing; 19. a rubber shock pad; 20. a wear layer; 21. wear-resistant rubber; 22. the grooves and the components are all standard parts or parts known to the person skilled in the art, the structure and the principle of which are known to the person skilled in the art by means of technical manuals or by means of routine experimentation.

It is apparent that those skilled in the art can make various changes and modifications to the embodiments of the present invention without departing from the spirit and scope of the embodiments of the present invention. Thus, if such modifications and variations of the embodiments of the present invention fall within the scope of the claims and their equivalents, the present invention is also intended to include such modifications and variations.

Claims

1. The utility model provides a flange formula turbine butterfly valve, includes disk seat (8), its characterized in that, disk seat (8) internal surface spraying has wearing layer (20), wearing layer (20) surface bonding has abrasive rubber (21), disk seat (8) internal rotation is connected with valve (6), disk seat (8) surface bonding has rubber shock pad (19), rubber shock pad (19) surface coating has shell (18), disk seat (8) bottom fixedly connected with damper box (14), damper box (14) bottom end bonding has damping piece (16), damper box (14) bottom end both sides can be dismantled and be connected with damping spring (15), damping spring (15) top is located the inside of recess (22), the bottom of montant (17) is seted up in recess (22), montant (17) bottom gap connection has damping spring (15), the top end of the vertical rod (17) is fixedly connected with a valve seat (8).

2. The flange type turbine butterfly valve according to claim 1, wherein a flange seat a (4) is connected to both ends of the valve seat (8) in an interference manner, a clamping edge (5) extends outwards from the flange seat a (4), and the clamping edge (5) is connected with a clamping groove (13) in a clamping manner.

3. The flange type turbine butterfly valve according to claim 2, wherein the clamping groove (13) is opened on the surface of a flange seat b (10), the flange seat b (10) is fixedly connected with a water pipe (9), and the flange seat b (10) is bolted with a flange seat a (4) through a bolt (12).

4. The flange type turbine butterfly valve according to claim 2, wherein a screw hole (7) is formed in the surface of the flange seat a (4), and a sealing ring (11) is bonded to the surface of the flange seat a (4).

5. The flange type turbine butterfly valve according to claim 1, wherein a connecting frame (2) is welded at the top end of the valve seat (8), a power box (1) is bolted at the top end of the connecting frame (2), and a hand wheel (3) is detachably connected to the right side of the power box (1).