CN216343922U - Sealing structure suitable for heat accumulating type incinerator and heat accumulating type incinerator - Google Patents
Sealing structure suitable for heat accumulating type incinerator and heat accumulating type incinerator Download PDFInfo
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- CN216343922U CN216343922U CN202122367305.4U CN202122367305U CN216343922U CN 216343922 U CN216343922 U CN 216343922U CN 202122367305 U CN202122367305 U CN 202122367305U CN 216343922 U CN216343922 U CN 216343922U
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Abstract
The utility model discloses a sealing structure suitable for a heat accumulating type incinerator and the heat accumulating type incinerator, wherein the sealing structure comprises a valve body, a valve port ring and a power assembly, the valve body is positioned between the valve port ring and the power assembly, the power assembly is fixedly connected with the valve body, and a sealing piece is arranged at the end part of the valve port ring; the valve body comprises a first valve plate and a second valve plate, and when the sealing structure is in a closed state, a closed cavity is formed among the first valve plate, the second valve plate and the valve port ring; the valve port ring is provided with a pipeline which is communicated with the cavity. According to the sealing structure, the sealing element is arranged on the valve port ring, so that the sealing property between the valve port ring and the valve body is enhanced to prevent waste gas from leaking from a gap between the valve port ring and the valve body; the back flushing air is blown into the cavity through the pipeline, waste gas is effectively blocked at one side of the valve body and cannot enter the cavity, waste gas leakage is prevented, and the problem that the emission exceeds the standard due to the fact that untreated waste gas is directly discharged into the atmosphere is avoided.
Description
Technical Field
The utility model belongs to the technical field of waste gas treatment, and particularly relates to a sealing structure suitable for a heat accumulating type incinerator and the heat accumulating type incinerator.
Background
Among organic waste gas purification methods, the Regenerative Thermal Oxidizer (RTO) is a VOC (volatile organic compound) waste gas treatment method with great development prospect, and the Regenerative Thermal Oxidizer (RTO) purifies organic waste gas by oxidizing the organic waste gas in a combustion chamber to generate carbon dioxide and water. Compared with the traditional waste gas treatment equipment, the RTO technology can obtain considerable benefits under the conditions of energy conservation and pollution reduction, and is a future development trend of the VOC treatment technology.
The RTO device is generally divided into two chambers (regenerators), three chambers or a plurality of chambers, wherein the operation principle of the RTO with three chambers is that when one regenerator is used for air intake and one regenerator is used for air exhaust, the third regenerator is used for back flushing, and the purification efficiency of the RTO device with three chambers can reach 97-99 percent at most.
In the RTO device, a gas switching valve connected with a regenerator mostly adopts compressed gas and a poppet valve driven by a driving assembly, and along with the continuous improvement of the environmental emission standard, the sealing property of the traditional poppet valve can not meet the requirement of waste gas treatment equipment. The traditional poppet valve drives the valve rod through the cylinder, so as to drive the valve rod support and the valve plate to move back and forth, and the sealing of the valve plate and the valve port ring is realized. The sealing between the valve plate and the valve port ring is hard sealing, namely metal is contacted with metal, so that the valve plate cannot be tightly attached to the valve port ring and a gap exists between the valve plate and the valve port ring.
SUMMERY OF THE UTILITY MODEL
In view of the above, in order to overcome the defects of the prior art and achieve the above object, the present invention provides a sealing structure for a regenerative incinerator and a regenerative incinerator, which are used for solving the problem that the traditional poppet valve has poor sealing property and is easy to cause exhaust gas leakage.
In order to achieve the purpose, the utility model adopts the following technical scheme:
a sealing structure suitable for a regenerative incinerator comprises a valve body, a valve port ring and a power assembly, wherein the valve body is located between the valve port ring and the power assembly, the power assembly is fixedly connected with the valve body, and a sealing element is arranged at the end part of the valve port ring; the valve body comprises a first valve plate and a second valve plate, the sealing structure comprises an opening state and a closing state, when the sealing structure is in the closing state, the first valve plate and the second valve plate are respectively attached to the valve port ring, a closed cavity is formed among the first valve plate, the second valve plate and the valve port ring, the sealing element is used for sealing a gap generated when the valve body is attached to the valve port ring, and the power assembly is used for driving the valve body to be far away from or close to the valve port ring so as to open or close the sealing structure; the valve port ring is provided with a pipeline which is communicated with the cavity and is used for introducing gas into the cavity.
The sealing element is arranged on the valve port ring, so that the sealing property between the valve port ring and the valve body is enhanced to prevent waste gas from leaking from a gap between the valve port ring and the valve body; in addition, when seal structure was in the closed condition, through the pipeline blowback gas in to the cavity, made its entering cavity with the effective separation of waste gas in one side of valve body, further prevented that waste gas from producing between valve body and valve port circle and revealing, avoided untreated waste gas directly to discharge and lead to discharging to exceed standard in the atmosphere. In some embodiments of the utility model, the gas is preferably air.
According to some preferred implementation aspects of the present invention, the valve gasket comprises a first valve port portion, a second valve port portion and a connection ring located between the first valve port portion and the second valve port portion, and the bottom surfaces of the first valve port portion and the second valve port portion are located on the same plane. The first valve port part and the second valve port part are connected through a connecting ring, both have a certain height, the bottom surfaces (the surfaces far away from the valve body) of the first valve port part and the second valve port part are flush and are positioned on the same plane, and the bottom ends of the first valve port part and the second valve port part are fixedly connected with a box body partition plate of the regenerative incinerator.
According to some preferred aspect of the present invention, the first valve port portion has the same center line as the second valve port portion, and the first valve port portion has an outer diameter larger than that of the second valve port portion; when the sealing structure is in a closed state, the first valve plate is used for sealing the first valve port part, and the second valve plate is used for sealing the second valve port part. The first valve port part and the second valve port part have the same circle center, the first valve port part belongs to the outer circle of a concentric circle, and the second valve port part belongs to the inner circle, namely the outer diameter of the first valve port part is larger than that of the second valve port part. Correspondingly, the valve body has set up first valve plate and second valve plate for the shape of matching the valve mouth circle, moves to the direction that is close to the valve mouth circle through power component drive valve body, utilizes first valve plate sealed first valve mouth portion, and the sealed second valve mouth portion of second valve plate, and double-deck sealed leakproofness between being favorable to strengthening valve mouth circle and the valve body is used with the sealing member cooperation again, avoids the leakage of waste gas.
According to some preferred embodiment aspects of the present invention, the connection ring is located at the bottom surfaces of the first and second valve port portions, the height of the first valve port portion is greater than that of the second valve port portion, and the distance between the first valve plate and the second valve plate is equal to the height of the first valve port portion which is greater than that of the second valve port portion. The connecting ring can seal the first valve plate and the second valve plate at the positions of the bottom surfaces of the first valve plate and the second valve plate, and good sealing performance can be guaranteed directly through an integrated welding mode. In addition, the height of the first valve port portion is greater than that of the second valve port portion, that is, the first valve port portion is closer to the valve body than the second valve port portion, and accordingly, the distance between the first valve plate and the second valve plate needs to be set to be the same as the height of the first valve port portion which is higher than the second valve port portion, so that when the sealing structure is closed, the first valve plate and the second valve plate can respectively and accurately contact with the first valve port portion and the second valve port portion and seal the first valve plate and the second valve plate, otherwise, the situation that the valve port ring cannot be completely sealed can be caused.
According to some preferred implementation aspects of the utility model, the valve body comprises a valve rod, the first valve plate is provided with a through hole, and the valve rod penetrates through the through hole and is fixedly connected with the first valve plate and the second valve plate; the first valve plate is parallel to the second valve plate, and the diameter of the first valve plate is larger than that of the second valve plate. In some embodiments of the utility model, the valve rod is positioned at the circle center of the first valve plate and the second valve plate, the valve plate seats are arranged on one side of the first valve plate close to the second valve plate and one side of the second valve plate far away from the first valve plate, and the valve rod is fixedly connected with the first valve plate and the second valve plate through the valve plate seats on the first valve plate and the second valve plate after penetrating through the through hole on the first valve plate, so that the connection firmness is ensured. First valve plate is parallel with the second valve plate and the diameter of first valve plate is greater than the diameter of second valve plate, and its shape phase-match that sets up the mode and enclose with the valve mouth guarantees that first valve plate and second valve plate can be respectively with first valve mouth portion and the laminating of second valve mouth portion when seal structure closes is tight.
According to some preferred aspect of the present invention, the first valve plate has a diameter larger than an outer diameter of the first valve port portion, and the second valve plate has a diameter larger than an outer diameter of the second valve port portion and smaller than an inner diameter of the first valve port portion. The diameter that sets up first valve plate is greater than the external diameter of first valve opening portion and the diameter of second valve plate is greater than the external diameter of second valve opening portion, guarantees first valve plate and second valve plate and can cover corresponding first valve opening portion and second valve opening portion completely, guarantees the leakproofness, avoids the unable complete laminating of undersize. Since the second valve port portion is located inside the first valve port portion, and the outer diameter of the second valve port portion is smaller than the inner diameter of the first valve port portion, in order to ensure that the second valve plate can enter the first valve port portion and seal the second valve port portion, the diameter of the second valve plate needs to be smaller than the inner diameter of the first valve port portion.
According to some preferred implementation aspects of the utility model, the top ends (the end close to the valve body) of the first valve port part and the second valve port part are provided with the sealing elements, the sealing elements on the first valve port part are used for being jointed with the first valve plate, and the sealing elements on the second valve port part are used for being jointed with the second valve plate; the sealing element is made of rubber. The sealing member sets up to the material of rubber for seal structure becomes metal and rubber laminating by traditional metal and metal laminating, because rubber has better flexibility and deformability, when first valve plate and second valve plate cover first valve oral area and second valve oral area respectively, the leakproofness can further be strengthened to rubber between the two, avoids producing thin gap and can't be sealed by complete when metal and metal laminating.
According to some preferred implementation aspects of the present invention, the pipeline is fixedly connected to an outer wall of the first valve opening portion, a through opening is formed in the outer wall of the first valve opening portion, and an outer diameter of the pipeline is greater than or equal to a diameter of the through opening; when the sealing structure is in a closed state, the cavity is formed among the first valve port part, the second valve port part, the connecting ring, the first valve plate and the second valve plate. In some embodiments of the utility model, the pipe may be disposed at any position on the periphery of the first valve port portion, so as to ensure that the pipe is communicated with the cavity. When the sealing structure is in a closed state, a closed cavity is formed among the first valve port part, the second valve port part, the connecting ring, the first valve plate and the second valve plate, air is blown back into the cavity through the high-pressure fan, waste gas is effectively blocked on one side of the valve body by utilizing air flow of the air so that the waste gas cannot enter the cavity, leakage of the waste gas between the valve body and the valve port ring is further prevented, and the problem that the emission exceeds the standard due to the fact that the untreated waste gas is directly discharged into the atmosphere is avoided.
According to some preferred implementation aspects of the utility model, the power assembly comprises a connecting rod and a power part connected with the connecting rod in a sliding manner, a connector is arranged at one end of the connecting rod, and one end of the valve rod is fixedly connected with the connecting rod through the connector. In some embodiments of the present invention, the power part is preferably a cylinder, and the power assembly includes a connecting rod and a cylinder, one end of the connecting rod is connected to the connector, and the other end of the connecting rod is slidably connected to the cylinder. When sealing structure is opened to needs, produce power through starting the cylinder, drive the connecting rod and slide, and then make the valve rod remove, drive the whole direction of keeping away from the valve mouth circle of valve body and remove gradually, first valve plate and second valve plate separate with first valve oral area portion and second valve oral area portion respectively for the waste gas that just reaches emission standard through the processing outwards discharges to the atmosphere from corresponding regenerator.
The present invention also provides a regenerative incinerator including the sealing structure adapted to the regenerative incinerator as described above.
Compared with the prior art, the utility model has the advantages that: according to the sealing structure suitable for the heat accumulating type incinerator, the sealing element is arranged on the valve port ring, so that the sealing performance between the valve port ring and the valve body is enhanced to prevent waste gas from leaking from a gap between the valve port ring and the valve body; through the pipeline blowback air in to the cavity, make its can not get into the cavity with the effective separation of waste gas in one side of valve body, further prevent that waste gas from producing between valve body and valve port circle and revealing, avoid untreated waste gas directly to discharge and lead to discharging to exceed standard in the atmosphere.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a cross-sectional view of a seal in a closed position in a preferred embodiment of the utility model;
FIG. 2 is a cross-sectional view of a seal in an open position in a preferred embodiment of the utility model;
wherein the reference numerals include: the valve comprises a valve body-1, a first valve plate-11, a second valve plate-12, a valve rod-13, a valve plate seat-14, a valve ring-2, a first valve port-21, a second valve port-22, a connecting ring-23, a power assembly-3, a connecting rod-31, a connecting head-32, a power portion-33, a sealing element-4, a cavity-5, a pipeline-6 and a box body partition-7.
Detailed Description
In order to make those skilled in the art better understand the technical solution of the present invention, the technical solution in the embodiment of the present invention will be clearly and completely described below with reference to the drawings in the embodiment of the present invention, and it is obvious that the described embodiment is only a part of the embodiment of the present invention, and not a whole embodiment. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1 to 2, the regenerative thermal oxidizer in this embodiment includes conventional components such as a fan, a burner, a combustion chamber, a regenerative chamber, and a sealing structure. The sealing structure suitable for the regenerator incinerator in the embodiment comprises a valve body 1, a valve opening ring 2, a power assembly 3 and a pipeline 6. The valve body 1 is positioned between the valve port ring 2 and the power assembly 3, and the power assembly 3 is fixedly connected with the valve body 1; the pipeline 6 is fixedly connected with the valve port ring 2.
The valve port ring 2 comprises a first valve port part 21, a second valve port part 22 and a connecting ring 23 positioned between the first valve port part 21 and the second valve port part 22, wherein the bottom ends of the first valve port part 21 and the second valve port part 22 are fixedly connected with the box body clapboard 7. The center lines of the first valve port portion 21 and the second valve port portion 22 are the same, the bottom surfaces of the first valve port portion 21 and the second valve port portion 22 are located on the same plane, the connecting ring 23 is located on the bottom surfaces of the first valve port portion 21 and the second valve port portion 22, the height of the first valve port portion 21 is greater than that of the second valve port portion 22, that is, the distance from the first valve port portion 21 to the connecting ring 23 is greater than that from the second valve port portion 22 to the connecting ring 23. Further, the pipe 6 is fixedly connected to the outer wall of the first valve port portion 21.
The valve body 1 includes a first valve plate 11, a second valve plate 12, and a stem 13. The first valve plate 11 is parallel to the second valve plate 12, a through hole is formed in the first valve plate 11, a valve plate seat 14 is arranged on one side, close to the second valve plate 12, of the first valve plate 11 and one side, far away from the first valve plate 11, of the second valve plate 12, and the valve rod 13 is fixedly connected with the first valve plate 11 and the second valve plate 12 through the valve plate seats 14 on the first valve plate 11 and the second valve plate 12 after penetrating through the through hole in the first valve plate 11, so that the firmness of connection is guaranteed; the valve stem 13 is located at the center of the first valve plate 11 and the second valve plate 12. Since the first valve plate 11 is used to seal the first valve port portion 21 and the second valve plate 12 is used to seal the second valve port portion 22, the diameter of the first valve plate 11 is set larger than that of the second valve plate 12 to match the valve port ring 2.
In the present embodiment, the outer diameter of the first valve port portion 21 is larger than the outer diameter of the second valve port portion 22, accordingly, the diameter of the first valve plate 11 is larger than the outer diameter of the first valve port portion 21, and the diameter of the second valve plate 12 is larger than the outer diameter of the second valve port portion 22 and smaller than the inner diameter of the first valve port portion 21. As shown in fig. 1, when the sealing structure is in a closed state, the first valve plate 11 covers and seals the first valve port portion 21, and the second valve plate 12 covers and seals the second valve port portion 22, so that the entire valve port ring 2 is sealed by the valve body 1; a closed cavity 5 is formed among the first valve port part 21, the second valve port part 22, the connecting ring 23, the first valve plate 11 and the second valve plate 12, air is blown back into the cavity 5 through the high-pressure fan, waste gas can be effectively blocked on one side of the valve body 1 and cannot enter the cavity 5, leakage of the waste gas between the valve body 1 and the valve port ring 2 is further prevented, and the problem that the emission exceeds the standard due to the fact that the untreated waste gas is directly discharged into the atmosphere is avoided. In addition, the sealing element 4 is arranged at the top end of each of the first valve port part 21 and the second valve port part 22, when the first valve port part 21 is attached to the first valve plate 11 and the second valve port part 22 is attached to the second valve plate 12, gaps may be generated due to metal-to-metal contact, and the sealing element 4 can play a role in sealing the gaps, so that the sealing performance of the whole sealing structure is further enhanced. The material of the sealing member 4 is rubber.
The power assembly 3 includes a connecting rod 31 and a power portion 33, wherein one end of the connecting rod 31 is provided with a connecting head 32, and the other end of the connecting rod 31 is slidably connected with the power portion 33, and the power portion 33 of the embodiment is preferably a cylinder. As shown in fig. 2, the power part 33 is activated to generate power, so as to drive the connecting rod 31 to slide relative to the power part 33, and further drive the valve rod 13 to move, the valve rod 13 will drive the valve body 1 to move gradually towards the direction away from the valve port ring 2, the first valve plate 11 and the second valve plate 12 are separated from the first valve port part 21 and the second valve port part 22, respectively, the sealing structure is opened, and the treated exhaust gas meeting the emission standard is discharged to the atmosphere from the corresponding regenerator.
The working process of the sealing structure of the embodiment is as follows: the power assembly 3 provides power source to drive the valve body 1 to be far away from or close to the valve opening ring 2 so as to realize the opening or closing of the sealing structure. The cylinder is started, the connecting rod 31 is driven to slide relative to the cylinder, when the connecting rod 31 is gradually close to the cylinder, the valve rod 13 is driven to be gradually close to the cylinder, the first valve plate 11 and the second valve plate 12 are driven to move towards the direction close to the cylinder, and at the moment, the sealing structure is gradually opened, so that the treated waste gas can be discharged into the atmosphere. Conversely, when the cylinder is restarted, the driving rod 31 slides from the original position to a direction gradually away from the cylinder, and then drives the valve rod 13 to move towards the direction close to the valve port ring 2, and further drives the first valve plate 11 and the second valve plate 12 to move towards the direction close to the valve port ring 2, respectively, until the first valve plate 11 completely covers the first valve port portion 21, and the second valve plate 12 completely covers the second valve port portion 22, then the sealing structure is closed. When the sealing structure is in a closed state, clean air is blown back into the closed cavity 5 through the pipeline 6, and waste gas is further blocked on one side of the valve body 1, so that the leakage of the waste gas is avoided.
The above embodiments are merely illustrative of the technical concept and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the content of the present invention and implement the utility model, and not to limit the scope of the utility model, and all equivalent changes or modifications made according to the spirit of the present invention should be covered by the scope of the present invention.
Claims (10)
1. A sealing structure suitable for a regenerative incinerator is characterized by comprising a valve body, a valve port ring and a power assembly, wherein the valve body is located between the valve port ring and the power assembly, the power assembly is fixedly connected with the valve body, and a sealing element is arranged at the end part of the valve port ring; the valve body comprises a first valve plate and a second valve plate, the sealing structure comprises an opening state and a closing state, when the sealing structure is in the closing state, the first valve plate and the second valve plate are respectively attached to the valve port ring, a closed cavity is formed among the first valve plate, the second valve plate and the valve port ring, the sealing element is used for sealing a gap generated when the valve body is attached to the valve port ring, and the power assembly is used for driving the valve body to be far away from or close to the valve port ring so as to open or close the sealing structure; the valve port ring is provided with a pipeline which is communicated with the cavity and is used for introducing gas into the cavity.
2. The sealing structure according to claim 1, wherein the valve port ring includes a first valve port portion, a second valve port portion, and a connecting ring between the first valve port portion and the second valve port portion, and a bottom surface of the first valve port portion and a bottom surface of the second valve port portion are located on the same plane.
3. The seal structure according to claim 2, wherein the first valve port portion has the same center line as the second valve port portion, and an outer diameter of the first valve port portion is larger than an outer diameter of the second valve port portion; when the sealing structure is in a closed state, the first valve plate is used for sealing the first valve port part, and the second valve plate is used for sealing the second valve port part.
4. The sealing structure according to claim 2, wherein the connecting ring is located at a bottom surface of the first and second valve port portions, a height of the first valve port portion is greater than a height of the second valve port portion, and a distance between the first valve plate and the second valve plate is equal to the height of the first valve port portion which is greater than the second valve port portion.
5. The sealing structure according to claim 3, wherein the valve body comprises a valve rod, the first valve plate is provided with a through hole, and the valve rod penetrates through the through hole and is fixedly connected with the first valve plate and the second valve plate; the first valve plate is parallel to the second valve plate, and the diameter of the first valve plate is larger than that of the second valve plate.
6. The seal structure according to claim 5, wherein the first valve plate has a diameter larger than an outer diameter of the first valve port portion, and the second valve plate has a diameter larger than an outer diameter of the second valve port portion and smaller than an inner diameter of the first valve port portion.
7. A sealing structure according to claim 2, wherein the sealing member is provided at the top end of each of the first valve port portion and the second valve port portion, the sealing member on the first valve port portion is adapted to be fitted to the first valve plate, and the sealing member on the second valve port portion is adapted to be fitted to the second valve plate; the sealing element is made of rubber.
8. The sealing structure according to claim 2, wherein the pipeline is fixedly connected with the outer wall of the first valve opening part, a through opening is formed in the outer wall of the first valve opening part, and the outer diameter of the pipeline is larger than or equal to the diameter of the through opening; when the sealing structure is in a closed state, the cavity is formed among the first valve port part, the second valve port part, the connecting ring, the first valve plate and the second valve plate.
9. The sealing structure of claim 5, wherein the power assembly comprises a connecting rod and a power portion slidably connected with the connecting rod, a connector is arranged at one end of the connecting rod, and one end of the valve rod is fixedly connected with the connecting rod through the connector.
10. A regenerative incinerator comprising a sealing structure according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122367305.4U CN216343922U (en) | 2021-09-28 | 2021-09-28 | Sealing structure suitable for heat accumulating type incinerator and heat accumulating type incinerator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122367305.4U CN216343922U (en) | 2021-09-28 | 2021-09-28 | Sealing structure suitable for heat accumulating type incinerator and heat accumulating type incinerator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216343922U true CN216343922U (en) | 2022-04-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122367305.4U Active CN216343922U (en) | 2021-09-28 | 2021-09-28 | Sealing structure suitable for heat accumulating type incinerator and heat accumulating type incinerator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216343922U (en) |
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2021
- 2021-09-28 CN CN202122367305.4U patent/CN216343922U/en active Active
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