CN214838428U

CN214838428U - RTO valve with hard sealing structure

Info

Publication number: CN214838428U
Application number: CN202121270728.8U
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 a VOC exhaust-gas treatment technical field, concretely relates to RTO valve of hard seal structure. The device comprises a cylinder, a cylinder bracket, a push rod, a valve leaf, a lower metal sealing ring and an upper metal sealing ring; the valve leaf is detachably provided with a lower metal sealing ring, the lower metal sealing ring is provided with a conical first combining surface, an upper metal sealing ring is detachably arranged on the ROT chamber body at the position corresponding to the lower metal sealing ring, and the upper metal sealing ring is provided with a second combining surface matched with the first combining surface. The utility model discloses a cylinder promotes valve leaf and makes the first faying face of lower metal seal circle and the second faying face contact of last metal seal circle, can guarantee that the valve reaches the effect of high leakproofness. The sealing ring is made of metal castings, so that the permanent use of the valve can be met, the replacement is not needed, and the aim of long-term sealing of the valve is fulfilled.

Description

RTO valve with hard sealing structure

Technical Field

The utility model relates to a VOC exhaust-gas treatment technical field, concretely relates to RTO valve of hard seal structure.

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 among the VOCs waste gas treatment equipment in modern waste gas treatment trade is sealed to adopt the glass square rope mode of glass, and the valve opens and shuts for a long time and uses, leads to the glass square rope to damage easily after the collision, causes the hourglass wind, leads to steam to reveal, has the potential safety hazard.

SUMMERY OF THE UTILITY MODEL

The utility model provides a problem be: the RTO valve seal of the prior art adopts the glass fiber square rope to open and close for a long time, the glass fiber square rope is easily damaged after collision, air leakage is caused, hot air leakage is caused, potential safety hazards exist, and the RTO valve with the hard sealing structure is resistant to collision and does not leak air.

The utility model is realized by the following technical proposal that the RTO valve with a hard sealing structure comprises a cylinder, a cylinder bracket, a push rod, a valve leaf, a lower metal sealing ring and an upper metal sealing ring; the air cylinder is fixedly connected to the air duct, the air cylinder is fixedly connected to the air cylinder support, the extending end of the air cylinder is connected with the push rod, the push rod penetrates through the air duct, the sliding seat is fixedly mounted on the air duct, the push rod is in airtight sliding connection with the sliding seat, the tail end of the push rod is vertically connected with the valve leaf, the valve leaf is circular, the valve leaf is detachably provided with a lower metal sealing ring, the lower metal sealing ring is provided with a first conical combining surface and a first mounting surface convenient for bolt connection, the upper metal sealing ring is detachably mounted on the ROT chamber body at the position corresponding to the lower metal sealing ring, and the upper metal sealing ring is provided with a second combining surface matched with the first combining surface and a second mounting surface convenient for bolt connection.

In this scheme, promote the valve leaf through the cylinder and make the first faying face of lower metal seal circle and the second faying face contact of last metal seal circle, reach the effect of high leakproofness to first faying face is the conical surface, has the effect of self-centering.

Furthermore, in order to ensure the tightness of the combination of the upper metal sealing ring and the lower metal sealing ring and ensure that the direction of the valve leaf can be finely adjusted during pressing, the extending end of the air cylinder is connected with the push rod through a floating joint.

Further, in order to guarantee a long service life, the lower metal sealing ring and the upper metal sealing ring are both castings.

Further, the conicity of the first combining surface and the second combining surface is 90 degrees.

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

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

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

The utility model has the advantages that:

1. the utility model discloses an install down metal seal on the valve leaf, install metal seal on the ROT room body, promote the valve leaf through the cylinder and make down metal seal's first faying face and the second faying face contact of last metal seal, can guarantee that the valve reaches the effect of high leakproofness.

2. The utility model discloses a lower metal seal circle and last metal seal circle adopt the foundry goods, can satisfy the permanent use of valve, have guaranteed that the valve reaches permanent sealed purpose.

3. The utility model discloses a lower metal seal circle carries out the dismouting through the bolt with last metal seal circle, the installation of being convenient for.

4. The utility model discloses a sealing washer is metal seal circle, and resistant dashing can be better.

5. 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 shows a closed state of an RTO valve with a hard sealing structure according to the present invention;

fig. 2 shows an opened state of the RTO valve of the hard sealing structure according to the present invention;

fig. 3 is a partial enlarged view of fig. 1 at I.

In the figure: 1, a cylinder; 2, a cylinder bracket; 3, pushing a rod; 4, valve blades; 5, a lower metal sealing ring; 501 a first bonding surface; 502 a first mounting surface; 6, arranging a metal sealing ring; 601 a second bonding surface; 602 a second mounting surface; 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. 1-2, an RTO valve with a hard sealing structure comprises a cylinder 1, a cylinder bracket 2, a push rod 3, a valve leaf 4, a lower metal sealing ring 5 and an upper metal sealing ring 6; the air cylinder comprises an air cylinder support 2, an air cylinder 1, a push rod 3, a sliding seat 7, a valve leaf 4, a lower metal sealing ring 5 and an upper metal sealing ring 6, wherein the air cylinder support 2 is fixedly connected to an air duct 8, the air cylinder 1 is fixedly connected to the air cylinder support 2, the extending end of the air cylinder 1 is connected with the push rod 3, the push rod 3 penetrates through the air duct 8, the sliding seat 7 is fixedly installed on the air duct 8, the push rod 3 is in airtight sliding connection with the sliding seat 7, the tail end of the push rod 3 is perpendicularly connected with the valve leaf 4, the valve leaf 4 is circular, the lower metal sealing ring 5 is detachably installed on the valve leaf 4, the lower metal sealing ring 5 is provided with a first conical combining surface 501 and a first installing surface 502 convenient for bolt connection, the upper metal sealing ring 6 is detachably installed on an ROT chamber body 9 at the position corresponding to the lower metal sealing ring 5, and the upper metal sealing ring 6 is provided with a second combining surface 601 matched with the first combining surface 501 and a second installing surface 602 convenient for bolt connection.

In the scheme, the valve blade 4 is pushed by the cylinder 1 to enable the first combining surface 501 of the lower metal sealing ring 5 to be contacted with the second combining surface 601 of the upper metal sealing ring 6, so that the effect of high sealing performance is achieved, and the first combining surface 501 is a conical surface and has the function of self-centering.

In practical applications, in order to ensure the tightness of the joint of the upper metal seal ring 5 and the lower metal seal ring 6, the protruding end of the cylinder 1 is connected with the push rod 3 through a floating joint 10.

In practical application, in order to ensure a long service life, the lower metal sealing ring 5 and the upper metal sealing ring 6 are both cast.

In practical applications, the taper of the first combining surface 501 and the second combining surface 601 is 90 °.

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

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

In practical application, in order to enhance the sealing performance and prevent air leakage, a high-temperature-resistant sealant is coated between the lower metal sealing ring 5 and the valve blade 4, and a high-temperature-resistant sealant is coated between the upper metal sealing ring 6 and the ROT chamber body 9.

The utility model discloses a theory of operation:

the utility model discloses an install down metal seal 5 on the valve leaf 4, install metal seal 6 on the ROT room body 9, promote the first faying face 501 that valve leaf 4 made down metal seal 5 and the second faying face 601 contact of last metal seal 6 through cylinder 1, can guarantee that the valve reaches the effect of high leakproofness. The sealing ring is made of metal castings, so that the permanent use of the valve can be met, the replacement is not needed, and the aim of long-term sealing of the valve is fulfilled.

To sum up, a hard seal structure's RTO valve have the advantage that the leakproofness is high, long service life.

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. An RTO valve of hard seal structure which characterized in that: comprises a cylinder (1), a cylinder bracket (2), a push rod (3), a valve leaf (4), a lower metal sealing ring (5) and an upper metal sealing ring (6); the air cylinder is characterized in that the air cylinder support (2) is fixedly connected to an air duct (8), the air cylinder (1) is fixedly connected to the air cylinder support (2), the extending end of the air cylinder (1) is connected with the push rod (3), the push rod (3) penetrates through the air duct (8), a sliding seat (7) is fixedly mounted on the air duct (8), the push rod (3) is in air tightness sliding connection with the sliding seat (7), the tail end of the push rod (3) is perpendicularly connected with a valve leaf (4), the valve leaf (4) is circular, a lower metal sealing ring (5) is detachably mounted on the valve leaf (4), the lower metal sealing ring (5) is provided with a first conical combining surface (501) and a first mounting surface (502) convenient to bolt connection, an upper metal sealing ring (6) is detachably mounted on an ROT chamber body (9) at the position corresponding to the lower metal sealing ring (5), and the upper metal sealing ring (6) is provided with a second combining surface (601) and a second combining surface (501) matched with the first combining surface (501) and is detachably mounted on the upper metal sealing ring (6) A second mounting surface (602) to facilitate bolting.

2. A hard seal construction RTO valve in accordance with claim 1, wherein: the extending end of the cylinder (1) is connected with the push rod (3) through a floating joint (10).

3. A hard seal construction RTO valve in accordance with claim 1, wherein: the lower metal sealing ring (5) and the upper metal sealing ring (6) are both castings.

4. A hard seal construction RTO valve in accordance with claim 1, wherein: the conicity of the first combining surface (501) and the second combining surface (601) is 90 degrees.

5. A hard seal construction RTO valve in accordance with 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).

6. A hard seal construction RTO valve in accordance with claim 1, wherein: and reinforcing ribs are arranged on the back of the valve leaf (4).

7. A hard seal construction RTO valve in accordance with claim 1, wherein: and a high-temperature-resistant sealant is coated between the lower metal sealing ring (5) and the valve leaf (4), and a high-temperature-resistant sealant is coated between the upper metal sealing ring (6) and the ROT chamber body (9).