CN210510324U

CN210510324U - VOCs organic waste gas two-linkage scavenging valve

Info

Publication number: CN210510324U
Application number: CN201921318752.7U
Authority: CN
Inventors: 林建强; 李洪军
Original assignee: Liaoning Refine Tech Group Co ltd
Current assignee: Liaoning Refine Tech Group Co ltd
Priority date: 2019-08-15
Filing date: 2019-08-15
Publication date: 2020-05-12
Anticipated expiration: 2029-08-15

Abstract

The utility model provides a VOCs organic waste gas two allies oneself with scavenging air valve. The top of the frame is provided with a cover plate and connected with a hydraulic oil cylinder; the interior of the frame body is divided into an upper chamber, a middle chamber and a lower chamber; the upper chamber is provided with an air outlet port at one side, the lower part of the upper chamber is provided with a valve body which forms a sealing structure with the valve core I, and the valve core I is connected with a shaft lever of the hydraulic oil cylinder through the compensator I; the lower part of the middle cavity is provided with a valve body which forms a sealing structure with the valve core II, and the upper part of the valve core II is connected with a compensator II and is connected with the valve core I through a connecting flange; the lower cavity is provided with a guide sleeve which is in clearance fit with a limiting shaft connected to the lower part of the valve core II to form a balance guide pillar for controlling the valve body to rock and the deviation of the valve core I and the valve core II to form a closed structure. The utility model discloses a case lower part sets up spacing axle and uide bushing clearance fit formation balance guide pillar, has effectively solved the valve body and has rocked the phenomenon, has also avoided the skew of case motion, has guaranteed that the rate of sealing is greater than 99%. The valve is suitable for being used as a two-way scavenging valve.

Description

VOCs organic waste gas two-linkage scavenging valve

Technical Field

The utility model relates to a VOCs organic waste gas especially relates to VOCs organic waste gas treatment valve device.

Background

VOCs (volatile organic compounds) refers to organic compounds with a saturated vapor pressure of more than 133.32 Pa at normal temperature, a boiling point of 50-260 ℃ below under a standard atmospheric pressure of 101.3kPa, and an initial boiling point of 250 ℃, or any organic solid or liquid capable of volatilizing at normal temperature and normal pressure. VOCs organic waste gas is a volatile organic compound which is actively stirred, acute poisoning is easily caused when the concentration of the volatile organic compound in indoor air is too high, pollution control of the VOCs-containing organic waste gas is mainly realized by a valve which is easy to leak, and the phenomena of running, overflowing, dripping and leaking are reduced. The VOCs organic waste gas two ally oneself with scavenging air valve commonly used adopts balanced pull rod structure to avoid case motion skew usually, because the valve body temperature rise appears in the use arouses the pull rod deformation, leads to the sliding sleeve motion to be obstructed, the valve body rocks to cause the valve body to run, emit, drip, leak the phenomenon, influence the seal of valve.

Disclosure of Invention

In order to solve the leakproofness of the organic waste gas valve of VOCs, the utility model provides a VOCs organic waste gas two allies oneself with scavenging air valve. The valve is provided with two sets of valve cores of a compensator in a driving mode through a hydraulic oil cylinder, the two sets of valve cores are sealed with the valve body metal in a hard mode, a limiting shaft and a guide sleeve are in clearance fit to form a balance guide pillar, and the technical problem of sealing of the VOCs organic waste gas valve is solved.

The utility model provides a scheme that technical problem adopted is:

the bottom of the rectangular frame is provided with a pulley for moving and a supporting seat for stabilizing the frame, and the top of the frame is provided with a cover plate and connected with a hydraulic oil cylinder; the interior of the frame body is divided into an upper chamber, a middle chamber and a lower chamber; the upper chamber is provided with an air outlet port at one side, the other side can be used as a standby air outlet port or an overhaul port, the lower part of the upper chamber is provided with a valve body to form a sealing structure with the valve core I, and the valve core I is connected with a shaft lever of the hydraulic oil cylinder through the compensator I; the two sides of the middle cavity are provided with maintenance ports, the lower part of the middle cavity is provided with a valve body and a valve core II to form a sealing structure, and the upper part of the valve core II is connected with a compensator II and is connected with the valve core I through a connecting flange; one side of the lower cavity is provided with an air inlet port, the other side of the lower cavity can be used as a spare air inlet port or an overhaul port, the lower cavity is provided with a guide sleeve which is in clearance fit with a limiting shaft connected to the lower part of the valve core II, and a balance guide pillar is formed to control the valve body to rock and the deviation of the valve core I and the valve core II, so that a closed structure is formed.

Preferably, the compensator I and the compensator II are connecting shaft joints sleeved with springs, and when the valve core I and the valve core II are pressed down on the valve body by the hydraulic oil cylinder, the springs buffer and damp to play a role in increasing pressure; the compensator I and the compensator II can also compensate the pressure of two sealing surfaces when the valve core I and the valve core II are pressed down on the valve body, and have the sealing effect.

Preferably, the limiting shaft is a cylindrical shaft connected to the lower portion of the valve core II, the guide sleeve is a shaft sleeve located in the lower cavity, and the limiting shaft and the guide sleeve form clearance fit and can move up and down in the guide sleeve to control the positioning of the valve core II.

Preferably, the side parts of the upper chamber and the lower chamber are provided with safety valves for controlling the air pressure in the valve body.

Positive effect, because the utility model discloses a pneumatic cylinder drives two sealing mechanism reciprocating motion and accomplishes the function of ventilating, closing gas. The lower part of the valve core is provided with the limiting shaft which is in clearance fit with the guide sleeve to form a balance guide pillar, so that the problem of shaking of the valve body is effectively solved, the valve core is prevented from moving and deviating, and the sealing rate is ensured to be more than 99%. The valve is suitable for being used as a two-way scavenging valve.

Drawings

FIG. 1 is a front view of the present invention;

fig. 2 is a side view of the present invention;

fig. 3 is a top view of the present invention.

In the figure, 1, a frame, 2, a cover plate, 3, a hydraulic oil cylinder, 4, a pulley, 5, a support seat, 6, an air outlet port, 7, an air inlet port, 8, an inspection port, 9, an I compensator, 10, an I valve core, 11, a connecting flange, 12, an II valve core, 13, an II compensator, 14, a limiting shaft, 15, a guide sleeve and 16 a safety valve.

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. Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

As shown in the figure, a pulley 4 for moving and a supporting seat 5 for stabilizing the frame are arranged at the bottom of a rectangular frame 1, and a cover plate 2 is arranged at the top of the frame and connected with a hydraulic oil cylinder 3; the interior of the frame body is divided into an upper chamber, a middle chamber and a lower chamber; one side of the upper chamber is provided with an air outlet port 6, the other side of the upper chamber can be used as a standby air outlet port or an overhaul port, the lower part of the upper chamber is provided with a valve body to form a sealing structure with a valve core 10I, and the valve core I is connected with a shaft lever of the hydraulic oil cylinder through a compensator 9I; the two sides of the middle chamber are provided with access ports 8, the lower part of the middle chamber is provided with a valve body which forms a sealing structure with a II valve core 12, and the upper part of the II valve core is connected with a II compensator 13 and is connected with the I valve core through a connecting flange 11; one side of the lower cavity is provided with an air inlet port 7, the other side of the lower cavity can be used as a spare air inlet port or an overhaul port, the lower cavity is provided with a guide sleeve 15 which is in clearance fit with a limiting shaft 14 connected to the lower part of the valve core II to form a balance guide pillar for controlling the valve body to rock and the deviation of the valve core I and the valve core II, and a closed structure is formed.

The compensator I and the compensator II are connecting shaft joints sleeved with springs, and when the hydraulic oil cylinder presses the valve core I and the valve core II down on the valve body, the springs buffer and damp to play a role in increasing pressure; the compensator I and the compensator II can also compensate the pressure of two sealing surfaces when the valve core I and the valve core II are pressed down on the valve body, and have the sealing effect.

The limiting shaft is a cylindrical shaft connected to the lower portion of the valve core II, the guide sleeve is a shaft sleeve located in the lower cavity, and the limiting shaft and the guide sleeve form clearance fit and can move up and down in the guide sleeve to control the positioning of the valve core II.

And safety valves 16 are arranged at the side parts of the upper chamber and the lower chamber to control the air pressure in the valve body.

The utility model discloses a theory of operation:

the two sealing mechanisms are driven by the hydraulic cylinder to reciprocate to complete the functions of ventilation and air closing. Two sets of metal hard sealing structures are adopted, the fit clearance of the metal sealing surfaces is smaller than 1mm, and the sealing rate is ensured to be larger than 99%. The lower part of the valve core is provided with a limiting shaft which is in clearance fit with the guide sleeve to form a balance guide pillar, so that the valve body is prevented from shaking and the valve core is prevented from deviating.

Embodiment the utility model discloses a main technical parameter:

suitable media are: gas (es)

Temperature: less than or equal to 160 DEG C

The shell material: s30408

Sealing the cover: s30408

Balancing the guide pillars: s30408/20#

The external dimension is as follows: 2810mm 5094.5mm

Air volume: 100000 square meters per hour

Designing pressure: -25Kpa

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.

Claims

VOCs organic waste gas two-linkage scavenging valve, characterized by: a pulley (4) for moving and a support seat (5) for stabilizing the frame are arranged at the bottom of the rectangular frame (1), and a cover plate (2) is arranged at the top of the frame and is connected with a hydraulic oil cylinder (3); the interior of the frame body is divided into an upper chamber, a middle chamber and a lower chamber; one side of the upper chamber is provided with an air outlet port (6), the other side of the upper chamber can be used as a standby air outlet port or an overhaul port, the lower part of the upper chamber is provided with a valve body to form a sealing structure with a valve core (10) I, and the valve core I is connected with a shaft lever of the hydraulic oil cylinder through a compensator (9) I; the two sides of the middle chamber are provided with maintenance ports (8), the lower part of the middle chamber is provided with a valve body which forms a sealing structure with the II valve core (12), and the upper part of the II valve core is connected with the II compensator (13) and is connected with the I valve core through a connecting flange (11); one side of the lower cavity is provided with an air inlet port (7), the other side of the lower cavity can be used as a standby air inlet port or an overhaul port, the lower cavity is provided with a guide sleeve (15) which is in clearance fit with a limiting shaft (14) connected to the lower part of the valve core II to form a balance guide pillar to control the valve body to rock and the deviation of the valve core I and the valve core II, and a closed structure is formed.
2. A VOCs organic exhaust gas two-up scavenging valve as claimed in claim 1, wherein: the compensator I and the compensator II are connecting shaft joints sleeved with springs, and when the hydraulic oil cylinder presses the valve core I and the valve core II down on the valve body, the springs buffer and damp to play a role in increasing pressure; the compensator I and the compensator II can also compensate the pressure of two sealing surfaces when the valve core I and the valve core II are pressed down on the valve body, and have the sealing effect.
3. A VOCs organic exhaust gas two-up scavenging valve as claimed in claim 1, wherein: the limiting shaft is a cylindrical shaft connected to the lower portion of the valve core II, the guide sleeve is a shaft sleeve located in the lower cavity, and the limiting shaft and the guide sleeve form clearance fit and can move up and down in the guide sleeve to control the positioning of the valve core II.
4. A VOCs organic exhaust gas two-up scavenging valve as claimed in claim 1, wherein: and safety valves (16) are arranged on the side parts of the upper chamber and the lower chamber to control the air pressure in the valve body.