CN113137475A - Rotary sealing device and cracking equipment - Google Patents

Abstract

The application discloses rotary seal device and pyrolysis apparatus, wherein, rotary seal device includes: the sealing plates of each sealing plate group are sequentially arranged along the circumferences of the first rotating connecting end and the second rotating connecting end, and every two adjacent sealing plates in each sealing plate group are partially overlapped and attached; and the tightening component is annularly connected to the sealing sheet group and used for pressing and tightly combining the sealing sheet group with the second rotating connecting end. All partly overlap the laminating between every two adjacent gaskets in every layer of gasket group, guaranteed every layer of gasket group's sealed, the gasket compresses tightly the laminating all the time in second rotation link with second rotation link normal running fit's in-process, has improved the rotary seal performance.

Description

Rotary sealing device and cracking equipment

Technical Field

The invention relates to the technical field of rotary sealing, in particular to a rotary sealing device. The invention also relates to a cracking device comprising the rotary sealing device.

Background

Need carry out rotary seal through rotating seal device between two relative pivoted parts, like current a pyrolysis apparatus includes a pyrolysis section of thick bamboo and a heat supply section of thick bamboo, the both ends sealed cowling of heat supply section of thick bamboo is in the outer wall of pyrolysis section of thick bamboo, and the heat supply section of thick bamboo is fixed, and the pyrolysis section of thick bamboo rotates relative to the heat supply section of thick bamboo, has rotary seal between pyrolysis section of thick bamboo and the heat supply section of thick bamboo, because there is gas in the heat supply section of thick bamboo, current rotary seal can not prevent well to rotate and connect the position gas leakage.

In summary, how to improve the sealing performance of the rotary sealing device becomes a problem to be solved urgently by those skilled in the art.

Disclosure of Invention

In view of the above, the present invention is directed to a rotary sealing device to improve the rotary sealing performance.

Another object of the present invention is to provide a cracking apparatus comprising the rotary sealing device, so as to improve the gas sealing performance of the cracking apparatus.

In order to achieve the purpose, the invention provides the following technical scheme:

a rotary seal device comprising:

the sealing device comprises one or more layers of sealing sheet groups, wherein each layer of sealing sheet group comprises a plurality of sealing sheets, one end of each sealing sheet is fixed at a first rotating connecting end of a first body, the other end of each sealing sheet of at least one layer of sealing sheet group is pressed and tightly fitted at a second rotating connecting end of a second body, the first rotating connecting end and the second rotating connecting end are in rotating fit, each layer of sealing sheet is sequentially arranged along the circumferences of the first rotating connecting end and the second rotating connecting end, and every two adjacent sealing sheets in each layer of sealing sheet group are partially overlapped and fitted;

and the tightening component is annularly connected to the sealing sheet group and is used for enabling the sealing sheet group to be pressed and tightly combined on the second rotating connecting end.

Preferably, in the above rotary sealing device, two adjacent sealing sheet groups are arranged in an overlapping manner.

Preferably, in the above-mentioned rotary sealing device, each sealing fin of the one or more sealing fin groups pressed and attached to the second rotary connecting end is provided with a flexible wear-resistant and temperature-resistant layer contacting the second rotary connecting end.

Preferably, in the above rotary sealing device, the flexible wear-resistant and temperature-resistant layer is a flexible wear-resistant and temperature-resistant sheath sleeved outside the sealing sheet.

Preferably, in the above-mentioned rotary sealing device, the tightening member is a tightening rope, and the tightening member is fixed to the outer side of the seal plate group.

The invention also provides cracking equipment, which comprises a cracking cylinder and a heat supply cylinder, wherein the heat supply cylinder is rotatably sealed and arranged outside the cylinder wall of the cracking cylinder, the heat supply cylinder is fixed, and the cracking cylinder rotates relative to the heat supply cylinder; the device is characterized in that the cracking cylinder and the heat supply cylinder are in rotary sealing connection through the rotary sealing device, the heat supply cylinder is a first body, and the cracking cylinder is a second body.

Preferably, in the cracking apparatus, the cracking apparatus further comprises a gas collecting hood rotatably mounted on the feed end and/or the discharge end of the cracking cylinder, an exhaust port is formed in a hood wall on the upper portion of the gas collecting hood, the gas collecting hood located at the feed end is provided with a feed port, and the gas collecting hood located at the discharge end is provided with a discharge port.

Preferably, in the above cracking apparatus, the gas collecting channel is connected to the cracking cylinder in a sealing manner by the rotary sealing device, the gas collecting channel is a first body, and the cracking cylinder is a second body.

Preferably, in the cracking apparatus, the cracking apparatus further comprises a gravity dust removal device, and the gravity dust removal device is communicated with the exhaust port.

Preferably, in the cracking apparatus described above, the gravity dust removing device includes:

the bin body is provided with an air inlet and an air outlet;

and the dust receiving plates are arranged along the direction from the air inlet to the air outlet, settling areas are formed between the inner wall of the bin body and the dust receiving plates and between two adjacent dust receiving plates, and a gas circulation space is formed between the top of each dust receiving plate and the inner top wall of the bin body.

Compared with the prior art, the invention has the beneficial effects that:

the rotary sealing device provided by the invention comprises a sealing sheet group and a tightening component, wherein the sealing sheet group is one or more layers, each layer of sealing sheet group comprises a plurality of sealing sheets, one end of each sealing sheet is fixed at a first rotary connecting end of a first body, the other end of each sealing sheet of at least one layer of sealing sheet group is pressed and tightly fitted at a second rotary connecting end of a second body, the first rotary connecting end is in rotary fit with the second rotary connecting end, each layer of sealing sheets is sequentially arranged along the circumferences of the first rotary connecting end and the second rotary connecting end, and every two adjacent sealing sheets in each layer of sealing sheet group are partially overlapped and fitted; the tightening component is annularly connected to the sealing sheet group and used for enabling the sealing sheet group to be pressed and tightly fitted on the second rotating connecting end.

The working principle of the rotary sealing device is as follows: the first rotating connecting end of the first body is in rotating fit with the second rotating connecting end of the second body, one end of each sealing sheet group is fixedly connected with the first rotating connecting end, and the other end of at least one sealing sheet group is in pressing fit with the second rotating connecting end, so that the second rotating connecting end is in rotating seal fit with one end of each sealing sheet group, each sealing sheet is sequentially arranged along the circumferences of the first rotating connecting end and the second rotating connecting end, and every two adjacent sealing sheets in each sealing sheet group are partially overlapped and fitted, so that the sealing of each sealing sheet group is ensured, and one end of each sealing sheet of at least one sealing sheet group is in pressing fit with the second rotating connecting end through a tightening part, so that in the rotating fit process of the sealing sheets with the second rotating connecting end, one end of each sealing sheet is in pressing fit with the second rotating connecting end all the time, and the sealing sheet group is in rotating seal contact with the second rotating connecting end all the time, and then realized that first rotation link and second rotate the rotation seal cooperation of link, can reduce gas leakage.

The cracking equipment provided by the invention comprises the cracking cylinder and the heat supply cylinder, and the cracking cylinder and the heat supply cylinder are rotationally sealed through the rotary sealing device, so that the gas sealing performance is improved, and the gas leakage of the heat supply cylinder can be reduced.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.

FIG. 1 is a schematic structural diagram of a cracking apparatus according to an embodiment of the present invention;

fig. 2 is a schematic view of a connection structure between a feed end and a gas collecting hood of a cracking cylinder of a cracking apparatus according to an embodiment of the present invention;

fig. 3 is a schematic view of a connection structure between a discharge end of a cracking cylinder and a gas collecting hood of a cracking apparatus according to an embodiment of the present invention;

FIG. 4 is an enlarged view of a portion of FIG. 2;

FIG. 5 is a schematic view of a deployed configuration of a rotary seal assembly according to an embodiment of the present invention;

FIG. 6 is a schematic diagram of a sealing plate of a rotary sealing device according to an embodiment of the present invention;

FIG. 7 is a schematic diagram of a sealing plate of another rotary seal apparatus according to an embodiment of the present invention;

fig. 8 is a schematic structural diagram of a gravity dust removal device of a cracking apparatus according to an embodiment of the present invention.

Wherein, 1 is a gas collecting hood, 11 is an exhaust port, 12 is a feed port, 2 is a heat supply cylinder, 3 is a cracking cylinder, 31 is a feed end, 32 is a discharge end, 4 is a rotary sealing device, 41 is a sealing plate group, 411 is a first sealing plate group, 412 is a second sealing plate group, 413 is a third sealing plate group, 414 is a flexible wear-resistant temperature-resistant layer, 4111 is a sealing plate, 42 is a tightening part, 5 is a gravity dust removal device, 51 is a cabin body, 52 is a gas circulation space, 53 is a gas inlet, 54 is a gas outlet, 55 is a settling zone, 56 is a dust receiving plate, 6 is a first body, and 7 is a second body.

Detailed Description

The core of the invention is to provide a rotary sealing device, which improves the rotary sealing performance.

The invention also provides a cracking device comprising the rotary sealing device, and the gas sealing performance of the cracking device is improved.

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. 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. 2 to 7, an embodiment of the present invention provides a rotary sealing device, which includes a sealing plate group 41 and a tightening member 42, where the sealing plate group 41 includes one or more layers, each layer of the sealing plate group 41 includes a plurality of sealing plates 4111, the sealing plates 4111 may be specifically a trapezoidal plate, a rectangular plate, etc., one end of each sealing plate 4111 is fixed to a first rotary connection end of a first body 6, another end of each sealing plate 4111 of at least one layer of the sealing plate group 41 is pressed against a second rotary connection end of a second body 7, the first rotary connection end and the second rotary connection end are in rotary fit, the sealing plates 4111 of each layer of the sealing plate group 41 are sequentially arranged along the circumference of the first rotary connection end and the second rotary connection end, and each two adjacent sealing plates 4111 in each layer of the sealing plate group 41 are partially overlapped and attached; the tightening member 42 is annularly connected to the seal plate group 41 for pressing the seal plate group 41 against the second rotary connecting end, each layer of seal plate group 41 is annular as a whole, and the multiple layers of seal plate groups 41 are coaxially sleeved and stacked.

The working principle of the rotary sealing device is as follows: the first rotating connection end of the first body 6 is in rotating fit with the second rotating connection end of the second body, one end of the annular seal plate group 41 is fixedly connected with the first rotating connection end, and the other end of at least one seal plate group 41 is in pressing fit with the second rotating connection end, so that the second rotating connection end is in rotating seal fit with one end of the seal plate group 41, as the seal plates 4111 of each seal plate group 41 are sequentially arranged along the circumferences of the first rotating connection end and the second rotating connection end, and every two adjacent seal plates 4111 in each seal plate group 41 are partially overlapped and fitted, the seal of each seal plate group 41 is ensured, and one end of the seal plate 4111 of at least one seal plate group 41 is in pressing fit with the second rotating connection end through the tightening part 42, so that in the process of rotating fit between the seal plate 4111 and the second rotating connection end, one end of the seal plate 4111 is in pressing fit with the second rotating connection end, the sealing piece group 41 and the second rotating connecting end are in all-time rotating sealing contact, so that the rotating sealing matching of the first rotating connecting end and the second rotating connecting end is realized, and the gas leakage can be reduced.

As shown in fig. 4-7, further, in the present embodiment, two adjacent sealing sheet groups 41 are arranged in a staggered and stacked manner. Taking the three-layer sealing plate group 41 as an example, the three-layer sealing plate group 41 is, from inside to outside, a first sealing plate group 411, a second sealing plate group 412 and a third sealing plate group 413 in sequence, the sealing plate 4111 of the first sealing plate group 411 and the sealing plate 4111 of the second sealing plate group 412 are not completely overlapped but are alternately stacked, and similarly, the sealing plate 4111 of the second sealing plate group 412 and the sealing plate 4111 of the second sealing plate group 412 are not completely overlapped but are alternately stacked, and preferably, the sealing plate 4111 of the first sealing plate group 411 and the sealing plate 4111 of the third sealing plate group 413 are not completely overlapped but are alternately stacked. With such an arrangement, gaps between the seal plate groups 41 are reduced, so that the sealing performance of the multilayer seal plate groups 41 is better. Of course, the number of layers of the sealing sheet group 41 may be one layer, two layers, four layers, or more, and the number of layers may be determined as needed as long as the sealing performance is ensured.

Further, in this embodiment, each sealing fin 4111 of the one or more sealing fin groups 41 in pressing fit with the second rotation connecting end is provided with a flexible wear-resistant and temperature-resistant layer 414 in contact with the second rotation connecting end. So set up, because wear-resisting temperature-resistant layer 414 of flexibility has the flexibility, consequently, rotate the link contact through wear-resisting temperature-resistant layer 414 of flexibility and second, can further improve the sealed laminating degree between sealing plate 4111 and the second rotation link, can completely cut off gas better, and wear-resisting temperature-resistant layer 414 of flexibility has wear-resisting and temperature resistance, consequently, can bear long-time running friction and high temperature, has improved sealing reliability. Preferably, the flexible wear resistant layer 414 also has good lubricity to reduce friction between the seal piece 4111 and the second rotary connection end.

As shown in fig. 5 and 7, further, the flexible wear-resistant and temperature-resistant layer 414 is a flexible wear-resistant and temperature-resistant sheath sleeved outside the sealing sheet 4111. So set up, can make things convenient for the processing and the manufacturing of gasket group 41, when damage appears in flexible wear-resisting temperature resistant sheath, can change flexible wear-resisting temperature resistant sheath alone, reduce the maintenance cost. The seal plate 4111 may be made of stainless steel, so as to reduce the cost of the whole seal plate set 41.

Of course, the flexible wear-resistant layer 414 may be integrally formed with the sealing panel 4111, and the flexible wear-resistant layer 414 and the sealing panel 4111 may be made of the same material.

In this embodiment, the tightening component 42 is a tightening rope, the tightening component 42 is fixed to the outer side of the seal plate set 41, specifically, when the first rotating connection end is rotatably sleeved outside the second rotating connection end, a buckle is arranged on the outer side of the seal plate set 41, the tightening rope is tightly clamped in the buckle around a circle, an inward tightening force is applied to the seal plate set 41, and the seal plate set 41 is pressed against the outer wall of the second rotating connection end. The number of tightening members 42 may be one, two, or more as long as the seal plate group 41 can be tightened.

As shown in fig. 1, based on the rotary sealing device described in any of the above embodiments, an embodiment of the present invention further provides a cracking apparatus, which includes a cracking cylinder 3 and a heat supply cylinder 2, wherein the heat supply cylinder 2 is rotatably sealed and covered outside the wall of the cracking cylinder 3, the heat supply cylinder 2 is fixed, and the cracking cylinder 3 rotates relative to the heat supply cylinder 2; the cracking cylinder 3 and the heating cylinder 2 are connected in a rotating and sealing way through a rotating sealing device as described in any one of the above embodiments, wherein the heating cylinder 2 is a first body 6, and the cracking cylinder 3 is a second body 7.

Specifically, one end of the sealing plate group 41 is fixed to the heat supply cylinder 2, and the other end of the sealing plate group 41 is pressed against the outer wall of the cracking cylinder 3. Due to the adoption of the rotary sealing device, the gas sealing performance is improved, and the gas leakage of the heat supply cylinder 2 can be reduced.

Further, in this embodiment, the cracking apparatus further includes a gas collecting channel 1 that rotates the sealing channel at the feed end 31 and/or the discharge end 32 of the cracking cylinder 3, that is, the feed end 31 of the cracking cylinder 3 sets up the gas collecting channel 1, or the discharge end 32 of the cracking cylinder 3 sets up the gas collecting channel 1, or both the feed end 31 and the discharge end 32 of the cracking cylinder 3 are provided with the gas collecting channel 1, the gas collecting channel 1 is in running fit with the feed end 31 and the discharge end 32, the gas collecting channel 1 is fixed, an inner cavity of the gas collecting channel 1 is a gas collecting cavity communicated with the feed end 31 and the discharge end 32, an exhaust port 11 communicated with the gas collecting cavity is provided on an upper wall of the gas collecting channel 1, the gas collecting channel 1 located at the feed end 31 is provided with the feed port 12, and the gas collecting channel 1 located at the discharge end 32 is provided with the discharge port 13.

During operation, when the discharge end 32 is provided with the gas collecting channel 1, the pyrolysis gas and the pyrolysis carbon in the pyrolysis cylinder 3 are discharged from the discharge end 32 together and enter the gas collecting cavity of the gas collecting channel 1, because the exhaust port 11 is located on the upper cover wall of the gas collecting channel 1, the solid gravity subsides by utilizing the rising principle of the heated pyrolysis gas, the pyrolysis gas is discharged from the exhaust port 11 on the upper part of the gas collecting channel 1 after being separated from the solid, and the solid is discharged from the discharge port 13 of the gas collecting channel 1. When the gas-collecting hood 1 is arranged at the feed end 31, the cracked gas in the cracking cylinder 3 enters the gas-collecting cavity of the gas-collecting hood 1, and the cracked gas is separated from the solid material entering from the feed port 12 by utilizing the hot gas rising principle and then discharged from the exhaust port 11 at the upper part of the gas-collecting hood 1. Thereby reducing the dust content of the discharged cracked gas.

As shown in fig. 2-4, in the present embodiment, the gas collecting channel 1 and the cracking cylinder 3 are connected in a rotating and sealing manner through a rotating sealing device in the present application, the gas collecting channel 1 is a first body 6, and the cracking cylinder 3 is a second body 7. Thereby improving the gas sealing performance and reducing the gas leakage of the cracking cylinder 3.

In this embodiment, the cracking equipment further includes a gravity dust removal device 5, the gravity dust removal device 5 is communicated with the exhaust port 11, the cracked gas is discharged from the exhaust port 11 and then enters the gravity dust removal device 5, and the dust content in the cracked gas is further reduced by the gravity dust removal device 5 through the gravity separation effect.

As shown in fig. 8, the present embodiment provides a specific gravity dust removing device 5, and the gravity dust removing device 5 includes a bin body 51 and a dust receiving plate 56; wherein, the bin body 51 is provided with an air inlet 53 and an air outlet 54, and the air inlet 53 is communicated with the air outlet 11; a plurality of dust receiving plates 56 are arranged in the bin body 51 along the direction from the air inlet 53 to the air outlet 54, a settling area 55 is formed between the inner wall of the bin body 51 and each dust receiving plate 56 and between two adjacent dust receiving plates 56, and an air circulation space 52 is formed between the top of each dust receiving plate 56 and the inner top wall of the bin body 51.

The working principle of the gravity dust removal device 5 is as follows: the pyrolysis gas enters the bin body 51 through the gas inlet 53 and flows towards the gas outlet 54, in the flowing process, the pyrolysis gas passes through the settling zone 55, the dust is settled in the settling zone 55 by utilizing the self gravity after being blocked by the dust receiving plate 56, the pyrolysis gas continuously flows through the gas circulation space 52 at the upper part in the bin body 51, the gas is separated from the dust once through each dust receiving plate 56, and finally, the gas is discharged out of the bin body 51 from the gas outlet 54, so that the dust removal operation of the pyrolysis gas is completed.

Further, in the present embodiment, the dust receiving plate 56 is inclined to the vertical direction, and on the one hand, the inclined dust receiving plate 56 can block the flow of dust, and on the other hand, a certain inclination angle can reduce the flow resistance of the gas.

Preferably, in the present embodiment, the dust receiving plate 56 is a pointed edge plate fixed to the bottom wall of the bin body 51, and both side slopes of the pointed edge plate can receive dust. Dust is prevented from settling on top of the dust receiving plate 56, thereby allowing the dust to settle in the settling zone 55. Of course, the dust receiving plate 56 may also be other shapes, such as rectangular, thin plate, etc.

In the present embodiment, the bottom wall of the cartridge body 51 is gradually inclined downward from the air inlet 53 to the air outlet 54. So set up, can follow air inlet 53 to the gas outlet 54 direction and increase the settlement height of subsidence zone 55 gradually to greatly reduced exhaust cracked gas's dust content.

The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (10)

1. A rotary seal assembly, comprising:

one or more layers of sealing plate groups (41), wherein each layer of sealing plate group (41) comprises a plurality of sealing plates (4111), one end of each sealing plate (4111) is fixed at a first rotating connecting end of a first body (6), the other end of each sealing plate (4111) of at least one layer of sealing plate group (41) is pressed against a second rotating connecting end of a second body (7), the first rotating connecting end and the second rotating connecting end are in rotating fit, the sealing plates (4111) of each layer of sealing plate group (41) are sequentially arranged along the circumferences of the first rotating connecting end and the second rotating connecting end, and each adjacent two sealing plates (4111) in each layer of sealing plate group (41) are partially overlapped and attached;

and the tightening component (42) is annularly connected to the sealing sheet group (41) and is used for enabling the sealing sheet group (41) to be tightly pressed and attached to the second rotating connecting end.

2. The rotary seal assembly according to claim 1, wherein adjacent two of said seal fin packs (41) are stacked in a staggered manner.

3. A rotary seal arrangement according to claim 1, characterized in that each sealing plate (4111) of the one or more sealing plate groups (41) in pressing engagement with the second rotary connection end is provided with a flexible wear resistant and temperature resistant layer (414) in contact with the second rotary connection end.

4. The rotary seal arrangement according to claim 3, wherein the flexible wear resistant and temperature resistant layer (414) is a flexible wear resistant and temperature resistant jacket that is sleeved outside the sealing fin (4111).

5. The rotary seal arrangement according to claim 1, characterized in that the tightening means (42) is a tightening rope, the tightening means (42) being fixed to the outside of the sealing plate package (41).

6. A cracking device comprises a cracking cylinder (3) and a heat supply cylinder (2), wherein the heat supply cylinder (2) is rotatably sealed and arranged outside the cylinder wall of the cracking cylinder (3), the heat supply cylinder (2) is fixed, and the cracking cylinder (3) rotates relative to the heat supply cylinder (2); characterized in that the pyrolysis cylinder (3) and the heat supply cylinder (2) are connected in a rotary sealing manner through a rotary sealing device according to any one of claims 1 to 5, the heat supply cylinder (2) is a first body (6), and the pyrolysis cylinder (3) is a second body (7).

7. The cracking device according to claim 6, further comprising a gas collecting hood (1) rotatably sealed at the feed end (31) and/or the discharge end (32) of the cracking cylinder (3), wherein the upper hood wall of the gas collecting hood (1) is opened with a gas outlet (11), the gas collecting hood (1) at the feed end (31) is provided with a feed port (12), and the gas collecting hood (1) at the discharge end (32) is provided with a discharge port (13).

8. The cracking apparatus according to claim 7, wherein the gas collecting hood (1) and the cracking cylinder (3) are in rotary sealing connection through the rotary sealing device, the gas collecting hood (1) is a first body (6), and the cracking cylinder (3) is a second body (7).

9. A cracking device according to any of claims 6-8, characterized in that it further comprises a gravity dust removal means (5), the gravity dust removal means (5) being in communication with the exhaust (11).

10. Cracking plant according to claim 9, characterized in that the gravity dust removal device (5) comprises:

a bin body (51), the bin body (51) being provided with an air inlet (53) and an air outlet (54);

a plurality of dust receiving plates (56) are arranged in the bin body (51) along the direction from the air inlet (53) to the air outlet (54), a settling zone (55) is formed between the inner wall of the bin body (51) and the dust receiving plates (56) and between two adjacent dust receiving plates (56), and a gas circulation space (52) is formed between the top of each dust receiving plate (56) and the inner top wall of the bin body (51).

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