CN219176982U

CN219176982U - High-temperature high-pressure welding gate valve

Info

Publication number: CN219176982U
Application number: CN202320234585.8U
Authority: CN
Inventors: 王镇福; 黄志鹏; 王文旺; 洪本溪; 黄苹苹
Original assignee: Zhixin Valve Co ltd
Current assignee: Zhixin Valve Co ltd
Priority date: 2023-02-16
Filing date: 2023-02-16
Publication date: 2023-06-13
Anticipated expiration: 2033-02-16

Abstract

The utility model provides a high-temperature high-pressure welding gate valve, which comprises a valve body, wherein connecting flanges are arranged on two sides of the valve body, a connecting pipe is arranged at the top of the valve body, a valve rod is rotationally connected to the top of the connecting pipe, an annular groove is arranged in the middle of the connecting pipe, a limiting ring is arranged in the middle of the valve rod, the limiting ring is rotationally connected in the annular groove, a handle is fixedly arranged at the top end of the valve rod, a valve clack is fixedly arranged at the bottom end of the valve rod, mounting grooves are formed in two ends of the inner wall of the gate valve, buffer tubes are in threaded connection in the mounting grooves, one end of each buffer tube is provided with an annular buffer block, and sealing rubber pads are arranged on the side of the outer wall of each annular buffer block.

Description

High-temperature high-pressure welding gate valve

Technical Field

The utility model belongs to the technical field of gate valves, and particularly relates to a high-temperature high-pressure welding gate valve.

Background

Gate valves, also called gate valves, are valves opened by lifting a barrier (gate) out of a fluid path, wherein the application number CN 202022472944.2 discloses that a high-temperature high-pressure welding gate valve is also an increasingly mature technology, a supporting plate is supported by matching a first supporting rod, a second supporting rod and a third supporting rod, a resistance reducing pad in a supporting plate structure is attached to a valve clack, the valve clack can support the valve clack when bearing fluid impact, and the valve rod is protected, but the device has the following defects: the first bracing piece, second bracing piece and the third bracing piece in above-mentioned equipment are through supporting the backup pad, and the backup pad is laminated and is provided for the valve clack with the valve clack and support, improves valve clack shock resistance, provides the protection to the valve clack, but be inconvenient for first bracing piece, second bracing piece and third bracing piece dismantles and change, can strike valve inner valve clack when the rivers impact force in the valve is too big simultaneously, be unfavorable for the valve clack to open, can receive rivers impact force influence when the valve rod rotates because of rivers impact force, and valve rod and part produce the striking, influence valve rod use.

Disclosure of Invention

The utility model aims to provide a high-temperature high-pressure welding gate valve and aims to solve the problems in the background technology.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a high temperature high pressure welding gate valve, includes the valve body, the valve body both sides are equipped with flange, the valve body top is equipped with the connecting pipe, the connecting pipe top rotates and is connected with the valve rod, the connecting pipe middle part is equipped with the ring channel, the valve rod middle part is equipped with the spacing ring, the spacing ring rotates and connects in the ring channel, valve rod top fixed mounting has the handle, valve rod bottom fixed mounting has the valve clack, the mounting groove has been seted up at gate valve inner wall both ends, mounting groove internal thread connection has the buffer tube.

In order to buffer the water flow, as a high-temperature high-pressure welding gate valve, an annular buffer block is preferably arranged at one end of the buffer tube.

In order to prevent water from entering the joint of the annular buffer block and the inner wall of the valve body, the high-temperature high-pressure welding gate valve is preferably used, and a sealing rubber gasket is arranged on the side of the outer wall of the annular buffer block.

In order to reduce the influence of water flow impact force on the valve rod, the high-temperature high-pressure welding gate valve is preferable in the utility model, the outer wall of the limiting ring is provided with a buffer groove, and the outer wall of the buffer groove is rotationally connected with the buffer ring.

In order to buffer the impact force of the valve rod, as a high-temperature high-pressure welding gate valve, the outer wall of the buffer ring is preferably provided with a buffer rubber ring.

In order to prevent the buffer rubber ring from falling off, the high-temperature high-pressure welding gate valve is preferable in the utility model, a positioning groove is formed in the middle of the annular groove, and the buffer rubber ring is embedded in the positioning groove.

Compared with the prior art, the utility model has the beneficial effects that:

the annular buffer block is arranged to buffer water flow, so that the kinetic energy of the water flow is reduced, the impact force of the water flow on the valve clack is reduced, the valve clack is convenient to rotate in the valve body, the sealing rubber pad prevents the water flow from entering the joint of the buffer tube and the inner wall of the valve body, and the buffer tube is screwed out of the mounting groove for replacement during maintenance, so that the valve clack is convenient to maintain;

through spacing ring collision buffer ring, the outside buffer rubber ring of buffer ring collides the ring channel inside, and the constant head tank is fixed buffer rubber ring position, avoids buffer rubber ring to drop when using, and buffer rubber ring reduces the impact buffering power, reduces the rocking of rivers impact to the valve rod, improves the stability when the valve rod rotates.

Drawings

The accompanying drawings are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate the utility model and together with the embodiments of the utility model, serve to explain the utility model. In the drawings:

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic view of the internal structure of the present utility model;

FIG. 3 is a schematic cross-sectional view of the present utility model;

FIG. 4 is an enlarged schematic view of the structure of FIG. 3 at A according to the present utility model;

fig. 5 is an enlarged view of the structure of fig. 3 at B according to the present utility model.

In the figure: 1. a valve body; 2. a connecting flange; 3. a connecting pipe; 4. a valve stem; 5. an annular groove; 6. a limiting ring; 7. a grip; 8. a valve flap; 9. a mounting groove; 10. a buffer tube; 11. an annular buffer block; 12. sealing the foot pad; 13. a buffer tank; 14. a buffer ring; 15. buffering rubber rings; 16. and a positioning groove.

Description of the embodiments

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-5, the present utility model provides the following technical solutions: the utility model provides a high temperature high pressure welding gate valve, includes valve body 1, and valve body 1 both sides are equipped with flange 2, and valve body 1 top is equipped with connecting pipe 3, and connecting pipe 3 top rotates and is connected with valve rod 4, and connecting pipe 3 middle part is equipped with ring channel 5, and valve rod 4 middle part is equipped with spacing ring 6, and spacing ring 6 rotates and connects in ring channel 5, and valve rod 4 top fixed mounting has handle 7, and valve rod 4 bottom fixed mounting has valve clack 8, and mounting groove 9 has been seted up at gate valve inner wall both ends, and mounting groove 9 female connection has buffer tube 10.

Preferably: one end of the buffer tube 10 is provided with an annular buffer block 11.

When the valve is particularly used, water flows through the annular buffer block 11 when the valve is used, the annular buffer block 11 buffers the water flow, so that the kinetic energy of the water flow is reduced, the impact force of the water flow on the valve clack 8 is reduced, and the valve clack 8 can conveniently rotate in the valve body 1.

Preferably: the side of the outer wall of the annular buffer block 11 is provided with a sealing rubber pad 12.

In specific use, the sealing rubber pad 12 prevents water from flowing into the junction of the buffer tube 10 and the inner wall of the valve body 1.

Preferably: the outer wall of the limiting ring 6 is provided with a buffer groove 13, and the outer wall of the buffer groove 13 is rotationally connected with a buffer ring 14.

In particular use, when the handle 7 is gripped to rotate the valve stem 4, the stop ring 6 rotates within the annular groove 5 and the buffer ring 14 rotates outside the buffer groove 13.

Preferably: the outer wall of the buffer ring 14 is provided with a buffer rubber ring 15.

When the valve rod 4 is impacted to generate deflection, the limiting ring 6 collides with the buffer ring 14, the buffer rubber ring 15 outside the buffer ring 14 collides with the inside of the annular groove 5, the buffer rubber ring 15 reduces impact buffering force, the influence of water flow impact on the valve rod 4 is reduced, and the stability of the valve rod 4 during rotation is improved.

Preferably: the middle part of the annular groove 5 is provided with a positioning groove 16, and the buffer rubber ring 15 is embedded in the positioning groove 16.

When the buffer rubber ring 15 is particularly used, the buffer rubber ring 15 is fixed in the positioning groove 16, and the buffer rubber ring 15 is prevented from falling off during use.

Working principle: when the valve rod 4 is impacted to generate deflection, the limiting ring 6 collides with the buffer ring 14, the buffer rubber ring 15 outside the buffer ring 14 collides with the annular groove 5, the buffer rubber ring 15 is fixed in the positioning groove 16, the position of the buffer rubber ring 15 is fixed, the buffer rubber ring 15 is prevented from falling off in use, the buffer rubber ring 15 reduces impact buffer force, reduces the shaking of the valve rod 4 caused by water impact, and improves the stability of the valve rod 4 in rotation.

Finally, it should be noted that: the foregoing description is only a preferred embodiment of the present utility model, and the present utility model is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present utility model has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. The utility model provides a high temperature high pressure welding gate valve, includes valve body (1), its characterized in that: valve body (1) both sides are equipped with flange (2), valve body (1) top is equipped with connecting pipe (3), connecting pipe (3) top rotation is connected with valve rod (4), connecting pipe (3) middle part is equipped with ring channel (5), valve rod (4) middle part is equipped with spacing ring (6), spacing ring (6) rotate and connect in ring channel (5), valve rod (4) top fixed mounting has handle (7), valve rod (4) bottom fixed mounting has valve clack (8), mounting groove (9) have been seted up at gate valve inner wall both ends, mounting groove (9) internal thread connection has buffer tube (10).

2. The high temperature and high pressure welding gate valve of claim 1, wherein: one end of the buffer tube (10) is provided with an annular buffer block (11).

3. The high temperature and high pressure welding gate valve of claim 2, wherein: and a sealing rubber pad (12) is arranged on the side of the outer wall of the annular buffer block (11).

4. The high temperature and high pressure welding gate valve of claim 1, wherein: the outer wall of the limiting ring (6) is provided with a buffer groove (13), and the outer wall of the buffer groove (13) is rotationally connected with a buffer ring (14).

5. The high temperature and high pressure welding gate valve of claim 4, wherein: the outer wall of the buffer ring (14) is provided with a buffer rubber ring (15).

6. The high temperature and high pressure welding gate valve of claim 5, wherein: the middle part of the annular groove (5) is provided with a positioning groove (16), and the buffer rubber ring (15) is embedded in the positioning groove (16).