Gate valve with spoiler ring

Abstract

The utility model relates to the field of gate valves, in particular to a gate valve with a spoiler ring. Comprising a valve body, a through hole and a through groove which is perpendicular to and communicated with the through hole are formed in the valve body, a valve plate is arranged in the through groove, and the valve plate conducts lifting motion under the action of a driver to close or open the through hole, so that a medium in the through hole stops or circulates correspondingly; a turbulent flow ring is coaxially mounted on the inner wall of the through hole, and the turbulent flow ring is provided with a mounting surface propped against the through hole and a sealing end surface propped against the valve plate at the closed position; a plurality of turbulent flow blocks are arranged on the inner wall of the turbulent flow ring towards the axis of the turbulent flow ring, the multiple turbulent flow blocks are arranged around the axis of the turbulent flow ring, and the end faces, away from the valve plate and perpendicular to the medium flowing direction, of the turbulent flow blocks are configured to be turbulent flow end faces. The turbulent flow blocks arranged on the inner wall of the turbulent flow ring can enable media to diffuse in the radial direction after being impacted in the flowing process, kinetic energy of the media is reduced, direct impact of the media on the valve plate is weakened, the impact load of the valve plate is reduced, the stability of the valve plate is improved, and the service life of the valve plate is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to the gate valve field especially relates to a gate valve with spoiler ring. BACKGROUND

[0002] In the traditional gate valve design, when the valve plate is in the closed position, due to the gap between the valve plate and the valve body, the medium may flow into the through groove along the radial direction of the through hole, which not only affects the sealing performance of the valve, but also may cause damage to the internal structure of the valve. In addition, if the medium directly impacts the valve plate during the flow process, it will cause the valve plate to bear a large impact load, thereby affecting the stability and service life of the valve plate. In addition, the existing gate valve design usually sets a sealing structure between the valve plate and the valve body, but the traditional sealing structure often has problems such as poor sealing effect, inconvenient installation, and poor impact resistance. SUMMARY

[0003] The utility model aims at: provide a kind of gate valve with spoiler ring, to solve the problem that the valve plate of prior art gate valve is impacted greatly, prone to damage.

[0004] The technical scheme of the utility model is: a kind of gate valve with spoiler ring, including valve body, the valve body is opened with through hole and the through groove vertical with through hole and communication, the through groove is provided with valve plate, the valve plate is under the action of driver and is lifted and moved to close or open through hole, so that the medium in through hole corresponds stop or flow through;

[0005] Coaxial installation is carried out on the inner wall of the through hole with spoiler ring, the spoiler ring has installation surface and sealing end surface that abut with the valve plate in closed position with through hole;The inner wall of the spoiler ring is provided with spoiler block towards its own axis, the spoiler block is provided as multiple around the axis of spoiler ring, and the end surface of the spoiler block away from the valve plate and perpendicular to the medium flow direction is structured as spoiler end surface.

[0006] Preferably, the spoiler ring is made of elastic material, and when the sealing end surface abuts with the valve plate, it has the tendency to stretch towards the valve plate.

[0007] Preferably, the spoiler ring includes a connecting portion, the connecting portion is provided as a thin-walled structure, and has a connecting surface abutting with the valve body, the connecting surface is provided with a connecting hole and a sealing groove around the axis of the spoiler ring, and the connecting portion is connected with the valve body and sealed by cooperating with a fastener and a sealing ring.

[0008] Preferably, the spoiler block is provided as a rectangular structure, and the edge of the spoiler end surface is provided with a chamfer.

[0009] Preferably, the length of the spoiler block along the radial direction of the spoiler ring is not more than half of the diameter of the inner wall of the spoiler ring; and the ratio of the length of the spoiler block along the radial direction of the spoiler ring to the width of the spoiler block is between 5:6 and 5:7.

[0010] Preferably, the driver comprises a cylinder, and a valve rod is connected to the execution end of the cylinder, and the end of the valve rod away from the cylinder is fixed to the valve plate.

[0011] Compared with the prior art, the utility model has the advantages that:

[0012] (1) The valve plate and the spoiler ring are tightly abutted, the gap between the valve plate and the spoiler ring is eliminated, the medium is effectively prevented from flowing into the through groove along the radial direction of the through hole, and the sealing effect and impact resistance of the valve are enhanced.

[0013] (2) The spoiler ring is made of elastic material, so that the sealing end face has better adaptability when cooperating with the valve plate, and the reliability of the sealing is further ensured.

[0014] (3) The spoiler block provided on the inner wall of the spoiler ring can make the medium diffuse along the radial direction after being impacted during the flow process, reduce the kinetic energy of the medium, weaken the direct impact of the medium on the valve plate, reduce the impact load of the valve plate, and improve the stability and service life of the valve plate. BRIEF DESCRIPTION OF DRAWINGS

[0015] The utility model will be further described in connection with the drawings and embodiments:

[0016] Figure 1 It is a sectional view of the gate valve with the spoiler ring;

[0017] Figure 2 It is a first perspective view of the spoiler ring of the utility model;

[0018] Figure 3 It is a second perspective view of the spoiler ring of the utility model;

[0019] Figure 4 It is a sectional view of the spoiler ring of the utility model;

[0020] Wherein: 1, valve body, 2, through hole, 3, through groove, 4, valve plate, 5, driver, 51, cylinder, 52, valve rod, 6, spoiler ring, 61, convex part, 62, mounting surface, 63, sealing end face, 64, spoiler block, 65, connecting part, 651, connecting hole, 652, sealing groove. DETAILED DESCRIPTION

[0021] The content of the utility model will be further described in detail in connection with specific embodiments:

[0022] As shown in Figure 1 A gate valve with a spoiler ring, comprising a valve body 1, the valve body 1 is provided with a through hole 2 in the horizontal direction, and a through slot 3 in the vertical direction is communicated with the through hole 2, the through slot 3 is provided with a valve plate 4, the valve plate 4 is driven by a driver 5 to move up and down along the through slot 3. When the valve plate 4 rises, the medium in the through hole 2 can flow. When the valve plate 4 falls, the through hole 2 is closed, so that the medium in the through hole 2 stops flowing. In this embodiment, the driver 5 comprises a cylinder 51, the cylinder 51 is connected with a valve rod 52, and the valve rod 52 is fixed with the valve plate 4 at the end away from the cylinder 51.

[0023] The inner wall of the through hole 2 is provided with a spoiler ring 6. As shown in Figure 2 - Figure 4 The middle part of the spoiler ring 6 is convex along the axis of itself, and the outer wall of the convex part 61 is used as the mounting surface 62 and is in interference fit with the through hole 2, so that the spoiler ring 6 is coaxial with the through hole 2. Moreover, the end face of the convex part 61 is configured as a sealing end face 63, which tightly abuts against the valve plate 4 when the valve plate 4 is in the closed position, eliminating the gap between the spoiler ring 6 and the valve plate 4, so that the medium in the through hole 2 cannot flow into the through slot 3 along the radial direction of the through hole 2.

[0024] Therefore, in order to enhance the sealing effect of the sealing end face 63 and the valve plate 4 when they cooperate, the whole spoiler ring 6 is made of elastic material, such as rubber, so that the sealing end face 63 is pressed and has the tendency to stretch towards the valve plate 4 when it cooperates with the valve plate 4, thereby ensuring that the sealing end face 63 tightly abuts against the valve plate 4.

[0025] The spoiler ring 6 is provided as a hollow structure, the middle part is communicated with the through hole 2 and connected with the valve plate 4 in the closed position, and has an inner wall. The inner wall is provided with spoiler blocks 64 towards the axis of itself, the spoiler blocks 64 are arranged in multiple around the axis of the spoiler ring 6, and the end face of any spoiler block 64 away from the valve plate 4 and perpendicular to the axis of the through hole 2 is configured as a spoiler end face. When the medium in the through hole 2 flows, the spoiler end face will be impacted by the flow of the medium, so that the medium of the impact part diffuses along the radial direction, reduces the kinetic energy of the medium, and further weakens the impact of the medium on the valve plate 4, reduces the impact load of the valve plate 4.

[0026] In this embodiment, the spoiler blocks 64 are preferably provided as rectangular structures, and the edges of the rectangular structures are provided with chamfers. As shown in Figure 3 The length of the rectangular structure along the radial direction of the spoiler ring 6 does not exceed half of the diameter of the inner wall of the spoiler ring 6, and the ratio between the length of the spoiler block 64 along the radial direction of the spoiler ring 6 and the width of the spoiler block 64 is between 5:6-5:7. According to experiments, the size design of such spoiler block 64 can obtain better spoiler effect.

[0027] The turbulence ring 6 is located outside the convex part 61 as a connecting part 65, which is arranged as a thin-walled structure relative to the convex part 61, has a connecting surface close to the valve plate 4 and abutting against the valve body 1, and the connecting surface is provided with a connecting hole 651 and a sealing groove 652 around the axis of the turbulence ring 6. The connecting hole 651 is provided with a fastener, which is a bolt or a rivet, and the turbulence ring 6 is fixed on the valve body 1 through the fastener so as not to be easily detached, and the sealing groove 652 is provided with a sealing ring, which cooperates with the valve body 1 to seal the gap between the turbulence ring 6 and the valve body 1.

[0028] The above embodiments are only for illustrating the technical concept and characteristics of the present application, and the purpose is to enable those skilled in the art to understand the content of the present application and implement it, and cannot limit the protection scope of the present application. For those skilled in the art, it is obvious that the present application is not limited to the details of the above exemplary embodiments, and the present application can be implemented in other specific forms without departing from the spirit or basic characteristics of the present application, therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting, the scope of the present application is defined by the appended claims rather than the above description, therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present application.

Claims

1. A gate valve having a turbulence ring, characterized in that, The utility model provides a valve body (1) is provided with through hole (2) and the through groove (3) of vertical and intercommunication with through hole (2), the through groove (3) is provided with valve plate (4) in, the valve plate (4) is under the action of driver (5) and carries out lifting movement and closes or opens through hole (2), so that the medium in through hole (2) corresponds and stops or flows through; Coaxial installation is provided with the turbulence ring (6) on the inner wall of through hole (2), the turbulence ring (6) has the mounting face (62) of abutment with through hole (2) and the sealing end face (63) of abutment with the valve plate (4) in the closed position;The inner wall of turbulence ring (6) is provided with turbulence block (64) towards its axis, the turbulence block (64) is provided as a plurality of around the axis of turbulence ring (6), and the end face of turbulence block (64) away from valve plate (4) and perpendicular to the medium flow direction is structured as turbulence end face.

2. A gate valve having a turbulence ring as defined in claim 1, wherein, The turbulence ring (6) is made of elastic material, and when the sealing end face (63) abuts against the valve plate (4), it has a tendency to stretch towards the valve plate (4).

3. A gate valve having a turbulence ring as defined in claim 2, wherein, The turbulence ring (6) includes a connecting portion (65) that is provided in a thin-walled structure and has a connecting surface that abuts against the valve body (1), the connecting surface is provided with a connecting hole (651) and a sealing groove (652) around the axis of the turbulence ring (6), and a fastener and a sealing ring are connected to and sealed with the valve body (1).

4. A gate valve having a turbulence ring as defined in claim 3, wherein, The turbulence block (64) is provided in a rectangular structure, and the edge of the turbulence end face is provided with a chamfer.

5. A gate valve having a turbulence ring as defined in claim 4, wherein, The length of the turbulence block (64) along the radial direction of the turbulence ring (6) is not more than half of the diameter of the inner wall of the turbulence ring (6); and the ratio of the length of the turbulence block (64) along the radial direction of the turbulence ring (6) to the width of the turbulence block (64) is between 5:6 and 5:

7.

6. A gate valve having a turbulence ring as defined in claim 1, wherein, The driver (5) includes a cylinder (51), the execution end of the cylinder (51) is connected with a valve rod (52), and the end of the valve rod (52) away from the cylinder (51) is fixed with the valve plate (4).

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