CN213711881U

CN213711881U - Zero leakage poppet valve of green low energy consumption

Info

Publication number: CN213711881U
Application number: CN202022034248.3U
Authority: CN
Inventors: 郑承煜; 马腾云
Original assignee: SHANGHAI ANJULE ENVIRONMENTAL PROTECTION TECHNOLOGY CO LTD
Current assignee: SHANGHAI ANJULE ENVIRONMENTAL PROTECTION TECHNOLOGY CO LTD
Priority date: 2020-09-16
Filing date: 2020-09-16
Publication date: 2021-07-16
Anticipated expiration: 2030-09-16

Abstract

The utility model discloses a zero-leakage poppet valve with green and low energy consumption, which comprises a valve body, an air cylinder and an air pipe, wherein the air cylinder and the air pipe are positioned outside the valve body; a valve stem connected to the cylinder; the valve seat, the valve plate and the valve plate reinforcing plate are positioned in the valve body. According to the scheme, the conical ring is additionally arranged on the periphery of the valve plate, the conical groove is formed in the position, opposite to the conical ring, of the valve seat, the conical ring and the conical groove are matched to form a conical sealing structure, the effect of pressing is increased, and the possibility of leakage is greatly reduced; secondly, add at the disk seat inner periphery and be equipped with the elastic sealing ring, can effectively compensate the silk clearance that processing assembly error brought, make it laminate completely with 360 degrees valve plates, can reach totally enclosed zero state of revealing.

Description

Zero leakage poppet valve of green low energy consumption

Technical Field

The utility model relates to a mechanical seal technique, concretely relates to zero leakage poppet valve of green low energy consumption.

Background

A poppet valve for an air flow conveying pipeline is characterized in that a valve plate of a conventional air-sealing type poppet valve is in direct contact with a plane of a sealing surface of a valve seat, and the valve plate and the valve seat are closed to realize sealing by utilizing cylinder transmission. In the processing, manufacturing and installation processes, a part of parts are difficult to avoid and can generate processing errors, assembly errors lead to a gap between the valve plate and the valve seat, gas is leaked from the gap, one path of compressed air is added between the valve plate and the valve seat, the pressure in the gap is larger than the internal pressure of the air duct, and the effect of back flushing is achieved to realize sealing.

The conventional air seal type poppet valve adopts an annular air channel structure, must be turned firstly, then welded and a valve seat body, turned again after welding, and provided with an exhaust hole, the conventional air seal type poppet valve is complex in processing and high in cost, a sealing surface is in plane contact, the compressed air pressure must be controlled accurately, the pressure is large, the gap between a valve plate and the valve seat can be blown, the pressure is small, the back blowing effect cannot be achieved, and the possibility of leakage exists. Compressed air continuously deflates when the valve plate is closed, the consumption of the compressed air is high, and the use cost is in the later stage. The valve seat annular air channel is high in machining difficulty and machining cost, a compressed air electromagnetic valve and a compressed air pipeline are needed to be arranged, and material consumption cost of the pressure reducing valve is high.

Therefore, the poppet valve which is low in processing cost and good in sealing effect needs to be invented.

SUMMERY OF THE UTILITY MODEL

To there being sealed poor technical problem of effect in current poppet valve, the utility model aims to provide a zero leakage poppet valve of green low energy consumption, its structure through changing valve plate and disk seat has effectually solved the problem that prior art exists.

In order to achieve the purpose, the utility model provides a zero leakage poppet valve with green and low energy consumption, which comprises a valve body; the air cylinder and the air pipe are positioned outside the valve body; a valve stem connected to the cylinder; the valve seat, the valve plate and the valve plate reinforcing plate are positioned in the valve body; the top end of the periphery of the valve plate is provided with a conical ring; a conical groove is formed in the position, corresponding to the conical ring, of the valve seat; the conical ring and the conical groove are matched to form a conical sealing structure.

Furthermore, the conical ring and the conical groove are of structures with equal angles and are concentric; the conical ring is embedded in the conical groove; the conical bottom of the conical ring is larger than that of the conical groove.

Furthermore, a groove is arranged above the conical groove on the valve seat; an elastic sealing ring is arranged in the groove.

The utility model provides a pair of zero leakage poppet valve of green low energy consumption, it sets up the bell jar through addding the toper ring in the valve plate periphery on the disk seat, and it constitutes a seal structure, can effectual improvement leakproofness, reduce cost.

Drawings

The invention is further described with reference to the following drawings and detailed description.

FIG. 1 is a schematic view of the overall structure of the valve plate of the poppet valve in the present embodiment in an open state;

FIG. 2 is a schematic overall structure diagram of a valve plate closed state of the poppet valve in the scheme;

FIG. 3 is a partial schematic structural view of the valve plate of the poppet valve in the present embodiment in an open state;

fig. 4 is a partial structure schematic diagram of the valve plate closing state of the poppet valve in the present embodiment.

Detailed Description

In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand and understand, the present invention is further explained by combining with the specific drawings.

Referring to fig. 1-2, which are schematic structural views of a green low-energy-consumption zero-leakage poppet valve in the present embodiment, it can be seen that the poppet valve includes a valve seat 1, a tapered groove 2, a valve plate 3, a tapered ring 4, an elastic sealing ring 5, an air cylinder 6, a valve rod 7, a valve plate reinforcing plate 8, an air pipe 9, and a valve body 10.

The air pipe is a pipeline system for conveying air, is positioned outside the valve body and is arranged at the edges of two sides of the valve body.

The cylinder 6 is located outside the valve body 10 and is connected with the end of the valve rod 7 which traverses the valve body 10 for transmitting the push-pull force through the valve rod 7.

The valve rod 7 crosses the valve body 10 and is connected with the air cylinder to form a driving mechanism by matching with the air cylinder 6. The construction of the cylinder 6 and the valve stem 7 is well known to those skilled in the art and will not be described in detail here.

Further, a valve plate 3 is arranged on the valve rod 7 positioned inside the valve body 10, and is sleeved on the valve rod 7. The two sides of the valve plate 3 are extruded and fixed through the valve plate reinforcing plate 8, so that the valve plate is protected from being damaged easily in the extruding process.

Secondly, two ends of the valve plate 3 are respectively provided with a conical ring 4, and the convex part of the conical ring 4 corresponds to the valve seat 1.

Adopted 2 disk seats 1 in this scheme, its structural component is the same, and the cross-section is the L type, corresponds the setting with the toper ring 4 of 3 both sides of valve plate respectively and fixes on valve body 10.

Taking one end valve seat 1 as an example, a conical groove 2 is arranged at the position of the top end of the transverse part of the valve seat 1 corresponding to the convex part of the conical ring 4, and the angle of the conical groove is equal to and concentric with the convex part of the conical ring 4. The conical groove 2 and the conical ring 4 are mutually matched to form a conical sealing structure, the conical ring 4 is embedded in the conical groove 2, and the conical bottom of the conical ring 4 is larger than that of the conical groove, so that the conical groove and the conical groove can be tightly attached, and the effect of pressing more and more is achieved.

And secondly, a groove is also formed in the upper part of the conical groove 2 on the valve seat and used for placing an elastic sealing ring 5.

In addition, for further guarantee to reach zero when bulldozing and reveal the effect, this scheme still is equipped with elastic sealing ring 5 at the inner wall of disk seat, and elastic sealing ring 5 sets up in the recess on the disk seat 1. The acting force of the elastic sealing ring 5 can effectively compensate the clearance caused by errors in the processing and assembling process, and the sealing performance of the sealing structure can be further ensured.

The composition structure of the elastic sealing ring 5 is not limited, and may be one or more of fluororubber, silicone rubber, hydrogenated nitrile rubber, acrylate rubber, polyurethane, styrene-butadiene rubber, ethylene-propylene-diene monomer rubber or other soft materials.

The specific operation is illustrated below.

In specific application, referring to fig. 3-4, when the valve plate 3 is opened, the conical ring 4 and the conical groove 2 are separated, and air in the valve body 10 is in a circulating state through the air pipe 9; when valve plate 3 closed, cylinder 6 exerted pressure, pushed valve plate 3 to contact with elastic sealing ring 5 through valve rod 7, cylinder 6 continued to exert pressure, made elastic sealing ring 5 shrink, the inflation, the not good clearance that causes of roughness that compensation valve plate 3 leads to because of machining error. When the valve plate 3 is pressed to be in full-face contact with the elastic sealing ring 5, the conical sealing ring 4 is in contact with the annular conical groove 2 to play a sealing role, and because the conical structure can be pressed more and more tightly, two conical sealing surfaces are completely attached and sealed until the sealing effect of combining hardness and softness of the inner part and the outer part is finally realized.

According to the zero-leakage poppet valve with the green and low energy consumption, the same or even better sealing effect can be realized between the valve plate 3 and the valve seat 1 without using compressed air. Through having made the change on valve plate 3 and disk seat 1, conical seal ring 4 has been increased on valve plate 3, set up tapered groove 2 on the disk seat, change sealed face into the toper structure, be and press tight effect more, consider in processing, there is the error in the middle of the assembling process, the rigidity is sealed can't guarantee zero completely and reveals, elastic seal ring 5 is add to the inboard, can effectively compensate the silk clearance that processing assembly error brought, make it laminate completely with 360 degrees of valve plate completely, reach the totally enclosed zero state of revealing, the structure that constitutes by above-mentioned scheme has following advantage:

(1) the form has simple structure, and the turning is finished in one step, thereby greatly reducing the processing cost;

(2) compressed air is omitted, so that the later use cost is effectively reduced, and the material cost required for controlling the pressure of the compressed air is saved;

(3) the possibility of leakage is greatly reduced.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. A zero-leakage lift valve with green and low energy consumption comprises a valve body, an air cylinder and an air pipe, wherein the air cylinder and the air pipe are positioned outside the valve body; a valve stem connected to the cylinder; the valve seat, the valve plate and the valve plate reinforcing plate are positioned in the valve body; the valve is characterized in that a conical ring is arranged at the top end of the periphery of the valve plate; a conical groove is formed in the position, corresponding to the conical ring, of the valve seat; the conical ring and the conical groove are matched to form a conical sealing structure.

2. A green low energy consumption zero leakage poppet valve as claimed in claim 1, wherein said conical ring and conical groove are of equal angular and concentric configuration; the conical ring is embedded in the conical groove; the conical bottom of the conical ring is larger than that of the conical groove.

3. A green, low power consumption, zero leakage poppet valve as defined in claim 1, wherein said valve seat has a recess above said tapered recess; an elastic sealing ring is arranged in the groove.