CN212107124U

CN212107124U - Poppet valve for improving RTO sealing effect

Info

Publication number: CN212107124U
Application number: CN202020155186.9U
Authority: CN
Inventors: 李俊波; 姜西之; 李沣林
Original assignee: Sichuan Yuanzhi Blue Environmental Protection Technology Co ltd
Current assignee: Sichuan Yuanzhi Blue Environmental Protection Technology Co ltd
Priority date: 2020-02-07
Filing date: 2020-02-07
Publication date: 2020-12-08
Anticipated expiration: 2030-02-07

Abstract

The utility model relates to the technical field of valves, in particular to a lifting valve for improving the sealing effect of RTO (room temperature oxidation), which comprises a cylinder component, a valve plate and a valve seat, wherein a supporting tube is arranged at the bottom end of the valve seat, a stand column is arranged around the top end of the supporting tube, a mounting plate is arranged at the top end of the stand column, the cylinder component is arranged on the mounting plate, the bottom output end of the cylinder component penetrates through the mounting plate and extends to the bottom end of the mounting plate to be connected with the top end of the valve plate, an annular groove is arranged at the top end of the valve seat, an aluminum silicate sealing strip is arranged in the annular groove, the bearing temperature of the aluminum silicate sealing strip is 1400 ℃, a telescopic shaft is driven by a cylinder to move downwards and is extruded with the aluminum silicate sealing strip on the valve, the poppet valve is continuously used, and the soft and hard double seals are combined for use, so that the service life of the poppet valve is prolonged.

Description

Poppet valve for improving RTO sealing effect

Technical Field

The utility model particularly relates to a waste gas switches valve technical field, especially relates to an improve poppet valve of RTO sealed effect of taking a breath.

Background

In the heat accumulating type thermal incineration (RTO for short), a waste gas control valve is one of the most important devices, and the quality of the waste gas control valve and the leakage rate directly influence the working quality of the whole RTO process. The small exhaust gas leakage can greatly reduce the efficiency of the exhaust gas purification treatment.

Traditional poppet valve is in sealed use, generally all through valve plate and disk seat contact, and its contact mode is rigid direct contact, and sealed effect is relatively poor, makes the medium leak easily, leads to its practicality relatively poor.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing the device.

In order to achieve the above purpose, the utility model adopts the following technical scheme: a lifting valve for improving the RTO sealing effect comprises a cylinder assembly, a valve plate and a valve seat, wherein a supporting tube is arranged at the bottom end of the valve seat, stand columns are arranged on the periphery of the top end of the supporting tube, a mounting plate is arranged at the top end of each stand column, the cylinder assembly is mounted on the mounting plate, the bottom output end of the cylinder assembly penetrates through the mounting plate and extends out of the bottom end of the mounting plate to be connected with the top end of the valve plate, an annular groove is formed in the top end of the valve seat, and an aluminum silicate.

Furthermore, the bearing temperature of the aluminum silicate sealing strip is 1400 ℃.

Furthermore, the cylinder assembly comprises a cylinder and a cylinder seat, the bottom end of the cylinder seat is connected with the top end of the mounting plate, the cylinder is mounted at the top end of the cylinder seat, a telescopic shaft is arranged at the output end of the bottom of the cylinder, a through hole is formed in the middle of the mounting plate, a filler seat is arranged inside the through hole, a flange matched with the filler seat is fixedly sleeved on the telescopic shaft, and sealing filler is arranged in the filler seat.

Further, the sealing filler is oil-impregnated graphite.

Furthermore, the telescopic shaft is connected with the bottom output end of the cylinder through a floating joint.

The utility model has the advantages that:

the valve plate can be driven to move up and down through the air cylinder assembly to be in contact with and separated from the valve seat, when the valve plate moves downwards to be in contact with the valve seat, the aluminum silicate sealing strip inside the annular groove is in contact with the bottom end of the valve plate in advance, the aluminum silicate sealing strip is extruded, the sealing effect is good, and the leakage condition is reduced.

Drawings

FIG. 1 is a schematic view of the exploded perspective structure of the present invention;

FIG. 2 is a schematic view of a portion of the enlarged structure of FIG. 1;

fig. 3 is a schematic view of a partial enlarged structure at C in fig. 1 according to the present invention;

fig. 4 is a schematic diagram of a partial enlarged structure at B in fig. 1 according to the present invention.

In the figure: 1. a valve plate; 2. a valve seat; 3. supporting a tube; 4. a column; 5. mounting a plate; 6. aluminum silicate sealing strips; 7. a cylinder; 8. a cylinder block; 9. a telescopic shaft; 10. a filler seat; 11. a flange; 12. sealing and filling; 13. a floating joint.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

In the description of this patent, it is noted that unless otherwise specifically stated or limited, the terms "mounted," "connected," and "disposed" are to be construed broadly and can include, for example, fixedly connected, disposed, detachably connected, disposed, or integrally connected and disposed. The specific meaning of the above terms in this patent may be understood by those of ordinary skill in the art as appropriate.

Referring to fig. 1-4, a poppet valve for improving the sealing effect of an RTO comprises a cylinder assembly, a valve plate 1 and a valve seat 2, wherein a supporting tube 3 is arranged at the bottom end of the valve seat 2, a column 4 is arranged around the top end of the supporting tube 3, a mounting plate 5 is arranged at the top end of the column 4, the cylinder assembly is mounted on the mounting plate 5, the bottom output end of the cylinder assembly passes through the mounting plate 5 and extends to the bottom end of the mounting plate 5 to be connected with the top end of the valve plate 1, an annular groove is arranged at the top end of the valve seat 2, an aluminum silicate sealing strip 6 is arranged in the annular groove, the valve plate 1 can be driven to move up and down through the cylinder assembly to be in contact with and separated from the valve seat 2, when the valve plate 1 moves down to be in contact with the valve seat, the sealing effect is good, the leakage situation is reduced, it should be further noted that the bearing temperature of the aluminum silicate sealing strip 6 is 1400 ℃, the service life is prolonged, the cylinder assembly comprises a cylinder 7 and a cylinder seat, the bottom end of the cylinder seat is connected with the top end of the mounting plate 5, the cylinder 7 is mounted at the top end of the cylinder seat, the output end of the bottom of the cylinder 7 is provided with a telescopic shaft 9, the telescopic shaft 9 is driven by the cylinder 7 to move up and down, the contact and the separation between the valve plate 1 and the valve seat 2 are realized, the closing and the opening of the poppet valve are realized, the middle part of the mounting plate 5 is provided with a through hole, a filler seat 10 is arranged in the through hole, a flange 11 matched with the filler seat 10 is fixedly sleeved on the telescopic shaft 9, a sealing filler 12 is arranged in the filler seat 10, the sealing effect between the telescopic shaft 9 and the through hole after the telescopic, the sealing effect is good, the telescopic shaft 9 is connected with the bottom output end of the air cylinder 7 through the floating joint 13, and the telescopic shaft 9 is convenient to install and detach.

The working principle of the embodiment is as follows: firstly, a support pipe 3 is communicated with a pipeline, the area of an upright post 4 at the upper part of the support pipe 3 is arranged in a set position area, a cylinder 7 is communicated with a gas circuit, when a lifting valve needs to be opened, a valve plate 1 is controlled to move upwards to separate the valve plate 1 from a valve seat 2, the support pipe 3 is communicated with the inside of the set area, when the lifting valve needs to be closed, a telescopic shaft 9 is driven by the cylinder 7 to move downwards to extrude with an aluminum silicate sealing strip 6 on the valve plate 1 to close and seal media in the support pipe 3, after the lifting valve works for more years, the aluminum silicate sealing strip 6 fails, the lifting valve can still be contacted with the original valve seat 2 through the valve plate 1, the lifting valve is continuously used, the soft and hard sealing are combined.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The utility model provides an improve sealed lift valve of effect of RTO which characterized in that: the aluminum silicate sealing valve comprises a cylinder assembly, a valve plate (1) and a valve seat (2), wherein a supporting tube (3) is arranged at the bottom end of the valve seat (2), stand columns (4) are arranged on the periphery of the top end of the supporting tube (3), a mounting plate (5) is arranged at the top end of each stand column (4), the cylinder assembly is mounted on the mounting plate (5), the bottom output end of the cylinder assembly penetrates through the mounting plate (5) and extends out of the bottom end of the mounting plate (5) to be connected with the top end of the valve plate (1), an annular groove is formed in the top end of the valve seat (2), and an aluminum silicate.

2. A poppet valve for improving an RTO sealing effect as defined in claim 1, wherein: the bearing temperature of the aluminum silicate sealing strip (6) is 1400 ℃.

3. A poppet valve for improving an RTO sealing effect as defined in claim 1, wherein: the air cylinder assembly comprises an air cylinder (7) and an air cylinder seat, the bottom end of the air cylinder seat is connected with the top end of the mounting plate (5), the air cylinder (7) is mounted at the top end of the air cylinder seat, a telescopic shaft (9) is arranged at the output end of the bottom of the air cylinder (7), a through hole is formed in the middle of the mounting plate (5), a filler seat (10) is arranged inside the through hole, a flange (11) matched with the filler seat (10) is fixedly sleeved on the telescopic shaft (9), and sealing filler (12) is arranged in the filler seat (10).

4. A poppet valve for improving an RTO sealing effect as claimed in claim 3, wherein: the sealing filler (12) is oil-immersed graphite.

5. A poppet valve for improving an RTO sealing effect as claimed in claim 3, wherein: the telescopic shaft (9) is connected with the bottom output end of the cylinder (7) through a floating joint (13).