CN214838429U

CN214838429U - RTO valve of sealed automatically cleaning of gaseous ring

Info

Publication number: CN214838429U
Application number: CN202121270740.9U
Authority: CN
Inventors: 徐中山
Original assignee: Jiangsu Shanmiao Environmental Engineering Co ltd
Current assignee: Jiangsu Shanmiao Environmental Engineering Co ltd
Priority date: 2021-06-08
Filing date: 2021-06-08
Publication date: 2021-11-23
Anticipated expiration: 2031-06-08

Abstract

The utility model relates to the technical field of VOC waste gas treatment, in particular to an RTO valve with air ring sealing and self-cleaning functions, which comprises an air cylinder, an air cylinder bracket, a push rod, a valve blade, an upper metal sealing ring and a compressed air pipeline; the air cylinder is fixed on the air duct through an air cylinder support, the air cylinder, the push plate and the valve leaf are fixedly connected in sequence, an upper metal sealing ring is installed on the ROT chamber body, an annular groove is formed in the contact surface of the upper metal sealing ring, and an air hole is formed in the bottom of the annular groove, extends to the side face of the upper metal sealing ring and is connected with a compressed air pipeline. This utility model is through promoting the valve leaf with the cylinder and going up the metal seal circle contact seal, and rethread main trachea and bronchus pass through the ring channel in the metal seal circle with compressed air, and the clearance between input valve leaf and the metal seal circle improves RTO valve leakproofness. Compressed air introduced into the upper metal sealing ring is blown into the air passage to ensure the cleanness of the air passage.

Description

RTO valve of sealed automatically cleaning of gaseous ring

Technical Field

The utility model relates to a VOC exhaust-gas treatment technical field, concretely relates to RTO valve of automatically cleaning is sealed to gaseous ring.

Background

A Regenerative Thermal Oxidizer (RTO) is a special device capable of efficiently purifying organic waste gas. The operating principle of the regenerative thermal oxidizer RTO is as follows: in a high-temperature environment (generally at 750-850 ℃), volatile organic compounds (hydrocarbons) in the organic waste gas and oxygen in the air are subjected to oxidation reaction to generate carbon dioxide and water, so that the organic waste gas is purified.

The RTO valve seal in the VOCs waste gas treatment equipment in modern waste gas treatment trade adopts the fine square rope mode of glass, and the contact surface is the plane contact, has the trace and leaks out, leads to steam to reveal, has the potential safety hazard. After the valve is opened and closed repeatedly, dust is easily stained on the sealing surface, and the sealing effect is influenced.

SUMMERY OF THE UTILITY MODEL

The utility model provides a problem be: in the prior art, the ROT valve has micro air leakage and potential safety hazard, and the gas ring sealing self-cleaning RTO valve with good sealing performance and no potential safety hazard is provided.

The utility model is realized by the following technical proposal, an RTO valve with air ring sealing and self-cleaning comprises an air cylinder, an air cylinder bracket, a push rod, a valve leaf, an upper metal sealing ring and a compressed air pipeline;

the utility model discloses a pneumatic valve, including cylinder support, push rod, valve leaf, cylinder support fixed connection, cylinder support, push rod and sliding seat gas tightness sliding connection, the end of push rod is connected with the valve leaf perpendicularly, the valve leaf is circular, installs metal seal on the ROT room body that the valve leaf corresponds the position, the contact surface of going up metal seal is equipped with the ring channel, the ring channel bottom is equipped with the side that the gas pocket extends to metal seal to be connected with the compressed air pipeline.

In this scheme, it is equipped with the ring channel to go up the metal seal circle bottom, it is sealed with last metal seal circle contact to promote the valve leaf through the cylinder, the ring channel then forms inclosed space, the rethread compressed air pipeline communicates compressed air to the ring channel in, even there is small clearance between last metal seal circle and the valve leaf, compressed air's atmospheric pressure is greater than the internal step atmospheric pressure of ROT room, compressed air can follow the clearance and flow to the ROT room is internal, effectively prevent the internal steam leakage of ROT room, the leakproofness of valve has been improved. Compressed air can also blow the valve blade, blows off the dust on the valve blade, ensures the leakproofness that valve blade and last metal seal circle combine.

Furthermore, in order to ensure that the air pressure at each part of the annular groove is uniform, the air holes are provided with a plurality of air holes, the compressed air pipeline comprises a main pipe and a plurality of branch pipes, the main pipe surrounds the outer side of the upper metal sealing ring, and the branch pipes are connected with the air holes on the side surfaces of the main pipe and the upper metal sealing ring.

Further, in order to ensure the fit of the sealing contact surface, the extending end of the cylinder is connected with the push rod through a floating joint.

Further, for convenience of processing and installation, the upper metal sealing ring is fixedly connected to the ROT chamber body through a bolt.

Furthermore, in order to enhance the sealing performance and prevent air leakage, a high-temperature-resistant sealant is coated between the upper metal sealing ring and the ROT chamber body.

Further, the air pressure in the annular groove is higher than the air pressure in the ROT chamber body by 500Pa, so that the air in the ROT chamber body is pressed by the compressed air in the annular groove and cannot escape.

Furthermore, a compression gap is reserved at the joint of the top end of the push rod 3 and the valve leaf 4.

Furthermore, in order to enhance the bending resistance of the valve leaf, the back of the valve leaf 4 is provided with a reinforcing rib.

The utility model has the advantages that:

1. the utility model discloses an it is equipped with the ring channel to go up metal seal circle bottom, it is sealed with last metal seal circle contact to promote the valve leaf through the cylinder, the ring channel then forms inclosed space, rethread compressed air pipeline communicates compressed air to the ring channel in, even there is small clearance between last metal seal circle and the valve leaf, compressed air's atmospheric pressure is greater than the internal step atmospheric pressure of ROT room, compressed air can follow the clearance and flow to the ROT room is internal, effectively prevent the internal steam leakage of ROT room, the leakproofness of valve has been improved.

2. Compressed air can also blow the valve leaf, blows off the dust on the valve leaf, realizes the automatically cleaning, ensures the leakproofness that valve leaf and last metal seal circle combine.

3. The utility model discloses an go up metal seal and adopt the bolt fastening, convenient processing and installation.

4. The utility model discloses an adopt the floating structure on the push rod, guarantee that the valve leaf direction can finely tune when compressing tightly, guarantee agreeing with of sealing washer contact surface.

Drawings

Fig. 1 is a closed state of an RTO valve with air ring sealing and self-cleaning according to the present invention;

fig. 2 is an opening state of the gas ring sealing self-cleaning RTO valve according to the present invention;

FIG. 3 is an enlarged view of a portion of FIG. 1 at I;

fig. 4 is a cross-sectional view taken at a-a in fig. 1.

In the figure: 1, a cylinder; 2, a cylinder bracket; 3, pushing a rod; 4, valve blades; 5, mounting a metal sealing ring; 501, an annular groove; 502 air holes; 6, a compressed air pipeline; 601 a main pipe; 602 a branch pipe; 7, a sliding seat; 8, an air duct; 9ROT chamber body; 10 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. 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 fig. 1-4, an air ring sealed self-cleaning RTO valve includes an air cylinder 1, an air cylinder bracket 2, a push rod 3, a valve vane 4, an upper metal seal ring 5, and a compressed air pipeline 6;

2 fixed connection of cylinder support is on wind channel 8, 1 fixed connection of cylinder is on cylinder support 2, the end that stretches out of cylinder 1 is connected with push rod 3, push rod 3 passes wind channel 8, fixed mounting has sliding seat 7 on the wind channel 8,

push rod

3 and 7 gas tightness sliding connection of sliding seat, 3 end vertical connection of push rod has valve leaf 4, valve leaf 4 is circular, installs metal seal 5 on the ROT room body 9 of valve leaf 4 corresponding position, the contact surface of going up metal seal 5 is equipped with ring channel 501, ring channel 501 bottom is equipped with the side that gas pocket 502 extends to metal seal 5 to be connected with compressed air pipeline 6.

In this scheme, go up metal seal 5 bottom and be equipped with ring channel 501, promote valve leaf 4 and last metal seal 5 contact seal through cylinder 1, ring channel 501 then forms inclosed space, rethread compressed air pipeline 6 communicates compressed air to ring channel 501 in, even there is small clearance between last metal seal 5 and the valve leaf 4, compressed air's atmospheric pressure is greater than the interior atmospheric pressure of ROT room body 9, compressed air can follow the clearance and flow to ROT room body 9 in, effectively prevent the hot gas leakage in the ROT room body 9, the leakproofness of valve has been improved. The compressed air can also blow the valve blade 4 to blow away dust on the valve blade 4, so that the sealing performance of the combination of the valve blade 4 and the upper metal sealing ring 5 is ensured.

In practical application, in order to ensure that the air pressure is uniform throughout the annular groove 501, the plurality of air holes 502 are provided, the compressed air pipeline 6 comprises a main pipe 601 and a plurality of branch pipes 602, the main pipe 601 surrounds the outer side of the upper metal sealing ring 5, and the branch pipes 602 connect the main pipe 601 and the air holes 502 on the side surface of the upper metal sealing ring 5.

In practical application, in order to ensure the fit of the sealing contact surface, the extending end of the cylinder 1 is connected with the push rod 3 through a floating joint 10.

In practical application, the upper metal sealing ring 5 is fixedly connected to the ROT chamber body 9 through bolts for convenience of processing and installation.

In practical application, in order to enhance the sealing performance and prevent air leakage, a high-temperature-resistant sealant is coated between the upper metal sealing ring 5 and the ROT chamber body 9.

In practical application, the air pressure in the annular groove 501 is higher than the air pressure in the ROT chamber body 9 by 500Pa, so that the air in the ROT chamber body 9 is pressed by the compressed air in the annular groove 501 and cannot escape.

The utility model discloses a theory of operation:

the utility model discloses an it is equipped with ring channel 501 to go up 5 bottoms of metal seal circle, it is sealed with 5 contact of last metal seal circle to promote valve leaf 4 through cylinder 1, ring channel 501 then forms inclosed space, rethread compressed air pipeline 6 communicates compressed air to ring channel 501 in, even there is small clearance between last metal seal circle 5 and the valve leaf 4, compressed air's atmospheric pressure is greater than the interior step atmospheric pressure of ROT room body 9, compressed air can follow the clearance and flow to ROT room body 9 in, effectively prevent the interior steam leakage of ROT room body 9, the leakproofness of valve has been improved. The compressed air can also blow the valve blade 4 to blow away dust on the valve blade 4, so that the sealing performance of the combination of the valve blade 4 and the upper metal sealing ring 5 is ensured.

To sum up, a RTO valve of sealed automatically cleaning of gas ring have the leakproofness height, do not have the potential safety hazard, can realize the advantage of automatically cleaning.

The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It should be understood by those skilled in the art that the foregoing embodiments are merely illustrative of the technical concepts and features of the present invention, and the purpose of the present invention is to provide a person skilled in the art with the ability to understand the contents of the present invention and implement the same, and not to limit the scope of the present invention.

Claims

1. The utility model provides a RTO valve of sealed automatically cleaning of gaseous ring which characterized in that: comprises a cylinder (1), a cylinder bracket (2), a push rod (3), a valve leaf (4), an upper metal sealing ring (5) and a compressed air pipeline (6);

cylinder support (2) fixed connection is on wind channel (8), cylinder (1) fixed connection is on cylinder support (2), the end that stretches out and push rod (3) of cylinder (1) are connected, wind channel (8) are passed in push rod (3), fixed mounting has sliding seat (7) on wind channel (8), push rod (3) and sliding seat (7) gas tightness sliding connection, valve leaf (4) are installed perpendicularly to push rod (3) end, valve leaf (4) are circular, install metal seal circle (5) on ROT room body (9) that valve leaf (4) correspond the position, the contact surface of going up metal seal circle (5) is equipped with ring channel (501), ring channel (501) bottom is equipped with the side that gas pocket (502) extend supreme metal seal circle (5) to be connected with compressed air pipeline (6).

2. A gas ring seal self-cleaning RTO valve as claimed in claim 1, wherein: the air hole (502) is equipped with a plurality ofly, compressed air pipeline (6) are including being responsible for (601) and a plurality of branch pipe (602), be responsible for (601) and encircle the outside at last metal seal ring (5), branch pipe (602) are connected and are responsible for (601) and go up air hole (502) of metal seal ring (5) side.

3. A gas ring seal self-cleaning RTO valve as claimed in claim 1, wherein: the extending end of the cylinder (1) is connected with the push rod (3) through a floating joint (10).

4. A gas ring seal self-cleaning RTO valve as claimed in claim 1, wherein: the upper metal sealing ring (5) is fixedly connected to the ROT chamber body (9) through a bolt.

5. A gas ring seal self-cleaning RTO valve according to claim 4, wherein: and a high-temperature-resistant sealant is coated between the upper metal sealing ring (5) and the ROT chamber body (9).

6. A gas ring seal self-cleaning RTO valve as claimed in claim 1, wherein: the air pressure in the annular groove (501) is 500Pa higher than the air pressure in the ROT chamber body (9).

7. A gas ring seal self-cleaning RTO valve as claimed in claim 1, wherein: and a compression gap is reserved at the joint of the top end of the push rod (3) and the valve leaf (4).

8. A gas ring seal self-cleaning RTO valve as claimed in claim 1, wherein: and reinforcing ribs are arranged on the back of the valve leaf (4).