CN110762216A - Novel gas sealing device of rotary furnace body - Google Patents
Novel gas sealing device of rotary furnace body Download PDFInfo
- Publication number
- CN110762216A CN110762216A CN201911158090.6A CN201911158090A CN110762216A CN 110762216 A CN110762216 A CN 110762216A CN 201911158090 A CN201911158090 A CN 201911158090A CN 110762216 A CN110762216 A CN 110762216A
- Authority
- CN
- China
- Prior art keywords
- furnace body
- piece
- clamping piece
- rotary furnace
- novel gas
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
- F16J15/18—Sealings between relatively-moving surfaces with stuffing-boxes for elastic or plastic packings
- F16J15/24—Sealings between relatively-moving surfaces with stuffing-boxes for elastic or plastic packings with radially or tangentially compressed packing
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
- F16J15/18—Sealings between relatively-moving surfaces with stuffing-boxes for elastic or plastic packings
- F16J15/184—Tightening mechanisms
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Muffle Furnaces And Rotary Kilns (AREA)
- Furnace Details (AREA)
Abstract
The invention relates to the technical field of surface sealing of relative movement, in particular to a novel gas sealing device of a rotary furnace body. This novel gas seal device of rotatory furnace body is including solid fixed ring (1), seal assembly (2), locating part (3), the tip fixed connection of solid fixed ring (1) and rotatory furnace body (8), seal assembly (2) are including holding piece A (21), holding piece B (22), holding piece A (21) are located one side of rotatory furnace body (8), holding piece B (22) are located adjacent mechanism (9) one side of rotatory furnace body (8), set up sealing strip (41) in order to realize radial seal on holding piece A (21) and/or holding piece B (22) and the relative plane of solid fixed ring (1), the bottom of holding piece B (22) is provided with lower sealing strip (42) that offsets with adjacent mechanism (9) in order to realize axial seal. The gas exchange prevention device has a good sealing effect.
Description
Technical Field
The invention relates to the technical field of surface sealing of relative movement, in particular to a novel gas sealing device of a rotary furnace body.
Background
Under certain working conditions, it is necessary to prevent leakage of internal gas from the junction of the rotary furnace body and the adjacent mechanism or entry of external gas. For example, in the field of pyrolysis desorption, a gas exchange preventing device must be arranged at the joint of the rotary carbonization furnace and the adjacent mechanism. Once the external gas enters the rotary carbonization furnace from the connection position, not only the oxygen-deficient environment in the carbonization furnace can be damaged, but also the pyrolysis gas can explode under the action of the oxygen.
The applicant has filed a gas exchange resistant seal mechanism, application No. 201510072445.5. The proposal realizes the purpose of preventing gas exchange by implementing axial sealing and radial sealing on the joint. After multiple uses of the applicant, the following problems are found: (1) when the rotary furnace body operates, the rotary furnace body continuously rubs with the axial sealing strip and the radial sealing strip at the same time, gas cannot pass through the radial sealing strip due to the existence of the pressing mechanism after the radial sealing strip is worn, but no remedial measure is taken after the axial sealing strip is worn, so that the axial sealing strip needs to be frequently replaced, and otherwise, the sealing effect is influenced; (2) because of the existence of expend with heat and contract with cold, the rotatory furnace body can take place the inflation under high temperature operating mode, and radial sealing strip's atress can sharply increase thereby the wearing and tearing of acceleration sealing strip, and the condition is serious, and rotatory furnace body still can stop the rotation.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide a novel gas sealing device of a rotary furnace body, which has a better sealing effect on the joint of the rotary furnace body and an adjacent mechanism.
In order to achieve the purpose, the technical scheme of the invention is as follows:
novel gas seal device of rotatory furnace body, including solid fixed ring, the seal assembly of centre gripping on solid fixed ring, restriction seal assembly takes place pivoted locating part, gu fixed ring and the tip fixed connection of rotatory furnace body, seal assembly includes holding piece A, holding piece B, holding piece A is located one side of rotatory furnace body, holding piece B is located adjacent mechanism one side of rotatory furnace body, holding piece A and/or holding piece B set up the sealing strip in order to realize radial seal on the relative plane of solid fixed ring, holding piece B's bottom is provided with the lower seal strip that offsets with adjacent mechanism in order to realize axial seal.
The end parts of the fixed ring and the rotary furnace body are fixedly connected and rotate along with the rotary furnace body, and the sealing component clamped on the fixed ring can only axially move and cannot rotate along with the rotary furnace body. The upper sealing strips on the clamping pieces A and B are tightly attached to two side surfaces of the fixing ring, so that radial multistage sealing is realized. In the axial sealing, the lower sealing strip at the bottom of the clamping piece B does not rub against the contact surface of the adjacent mechanism, so that the contact surface is not abraded, and the axial sealing effect is ensured.
On the other hand, when the rotary furnace body expands with heat and contracts with cold, the sealing assembly can move axially along with the rotary furnace body. The thermal expansion and cold contraction of the rotary furnace body can not influence the stress of the upper sealing strip, thereby being beneficial to improving the service life of the sealing strip and being beneficial to the normal operation of the rotary furnace body.
The upper sealing strip is the sealing strip which is only contacted with the fixed ring, and the lower sealing strip is the sealing strip which is mainly contacted with an adjacent mechanism.
As an improvement, the fixing ring is welded at the end part of the rotary furnace body.
As an improvement, the upper sealing strip protrudes out of the outer surface of the clamping piece A and/or the clamping piece B.
As an improvement, the sealing assembly comprises a clamping piece connecting piece, the clamping piece connecting piece is located between the clamping piece A and the clamping piece B, and a cavity is formed among the clamping piece connecting piece, the clamping piece A and the clamping piece B. After the cavity is formed, the gas must pass through all the upper sealing strips on the clamping pieces A and B to complete the exchange.
As a further improvement, the clamping piece connecting piece is provided with an air hole used for being communicated with an inert gas source. After the cavity is filled with inert gas, the gas in the rotary furnace body can be further prevented from exchanging with the outside air.
As an improvement, the sealing assembly comprises a pressing assembly which is used for applying continuous elastic pressing force to the upper sealing strip. The upper sealing strip can still be pressed on the surface of the fixing ring after being worn by the fixing ring.
As a further improvement, the pressing assembly comprises a sleeve, an ejector rod in threaded connection with the sleeve and a spring sleeved on the ejector rod, a through hole for the ejector rod to pass through is formed in the clamping piece A and/or the clamping piece B, and the ejector rod abuts against the upper sealing strip after passing through the through hole.
As a further improvement, the lower sealing strip is abutted against the fixing ring.
As an improvement, a spiral push rod used for pushing the lower sealing strip to the fixing ring is arranged on the clamping piece B.
As an improvement, the limiting part is a rod piece which is axially parallel to the rotary furnace body, a recess is formed in the clamping piece B, and the rod piece is clamped in the recess to achieve the purpose of preventing the sealing assembly from rotating.
Compared with the invention with the application number of 201510072445.5, the invention ensures axial sealing because the lower sealing strip does not generate rotating friction any more. The upper sealing strips on the clamping piece A and the clamping piece B realize multi-stage sealing, and ensure radial sealing. The invention has better sealing effect.
Drawings
FIG. 1 is a schematic view of the present invention in use;
FIG. 2 is an enlarged view of portion A of FIG. 1;
FIG. 3 is a schematic structural view of the present invention;
FIG. 4 is a schematic view showing the distribution of through holes and depressions on the holding sheet B according to the present invention.
In the figure: 1. a fixing ring; 2. a seal assembly; 21. a clamping piece A; 22. a clamping piece B; 221. recessing; 23. a clamping piece connecting piece; 231. air holes; 24. a compression assembly; 241. a sleeve; 242. a top rod; 243. a spring; 3. a limiting member; 41. sealing strips are arranged; 42. a lower sealing strip; 43. asbestos packing; 5. a cavity; 6. a through hole; 7. a screw push rod; 8. Rotating the furnace body; 9. adjacent mechanisms.
Detailed Description
Example 1
As shown in fig. 1-3, the novel gas sealing device for a rotary furnace body according to the present invention includes a fixing ring 1, a sealing assembly 2 clamped on the fixing ring 1, and a limiting member 3 for limiting the rotation of the sealing assembly 2.
The seal assembly 2 includes a pressing assembly 24, and the pressing assembly 24 is used for applying a continuous elastic pressing force to the upper seal strip 41. The pressing assembly 24 comprises a sleeve 241, a top rod 242 in threaded connection with the sleeve 241, and a spring 243 sleeved on the top rod, a through hole 6 for the top rod 242 to pass through is formed in the clamping piece a21 and/or the clamping piece B22, and the through hole 6 through which the top rod 242 passes is abutted against the upper sealing strip 41.
The holding piece B22 is provided with a screw pusher 7 for pushing the lower seal strip 42 toward the fixed ring 1. One side of the lower sealing strip 42 is also provided with an asbestos packing 43. The asbestos packing 43 and the lower sealing strip 42 can be extruded towards the fixing ring 1 by rotating the spiral push rod 7.
The limiting piece 3 is a rod piece which is axially parallel to the rotary furnace body 8, a recess 221 is formed in the clamping piece B22, and the rod piece is clamped in the recess 221 to achieve the purpose of preventing the sealing assembly 2 from rotating.
The fixed ring 1 is in a ring shape, is welded on the outer circumference of the end part of the rotary furnace body 8 and is perpendicular to the rotary furnace body 8. The sealing component 2 is annular and is sleeved on the fixing ring 1. The hold-down assembly 24 is circumferentially arranged on the seal assembly 2. As shown in fig. 4, one through hole 6 corresponds to one pressing member 24, and one recess 221 corresponds to one stopper 3. The number of the pressing assemblies 24 and the limiting members 3 can be increased or decreased according to needs.
In order to adapt to the expansion and contraction of the rotary furnace body 8, one of the two ends of the rotary furnace body 8 is generally set as a fixed end, and the other end is set as a telescopic end, wherein the fixed end prohibits the rotary furnace body 8 from axially extending, and the telescopic end allows the rotary furnace body 8 to axially extend. The invention is mainly used for sealing the joint of the telescopic end of the rotary furnace body and the adjacent mechanism.
Claims (10)
1. Novel gas seal device of rotatory furnace body, its characterized in that: including solid fixed ring (1), seal assembly (2) of centre gripping on solid fixed ring (1), pivoted locating part (3) take place in restriction seal assembly (2), the tip fixed connection of solid fixed ring (1) and rotatory furnace body (8), seal assembly (2) are including holding piece A (21), holding piece B (22), holding piece A (21) are located one side of rotatory furnace body (8), holding piece B (22) are located adjacent part (9) one side of rotatory furnace body (8), set up sealing strip (41) in order to realize radial seal on holding piece A (21) and/or holding piece B (22) and the relative plane of solid fixed ring (1), the bottom of holding piece B (22) is provided with sealing strip (42) down with adjacent part (9) counterbalance in order to realize axial seal.
2. A novel gas seal apparatus for a rotary furnace body according to claim 1, wherein: the fixed ring (1) is welded at the end part of the rotary furnace body (8).
3. A novel gas seal apparatus for a rotary furnace body according to claim 1, wherein: the upper sealing strip (41) protrudes out of the outer surface of the clamping piece A (21) and/or the clamping piece B (22).
4. A novel gas seal apparatus for a rotary furnace body according to claim 1, wherein: the sealing assembly (2) comprises a clamping piece connecting piece (23), the clamping piece connecting piece (23) is located between a clamping piece A (21) and a clamping piece B (22), and a cavity (5) is formed between the clamping piece connecting piece (23), the clamping piece A (21) and the clamping piece B (22).
5. A novel gas seal device of a rotary furnace body according to claim 4, characterized in that: the clamping piece connecting piece (23) is provided with an air hole (231) used for being communicated with an inert gas source.
6. A novel gas seal apparatus for a rotary furnace body according to claim 1, wherein: the sealing assembly (2) comprises a pressing assembly (24), and the pressing assembly (24) is used for applying continuous elastic pressing force to the upper sealing strip (41).
7. A novel gas seal apparatus for a rotary furnace body according to claim 6, wherein: the pressing assembly (24) comprises a sleeve (241), an ejector rod (242) in threaded connection with the sleeve (241), and a spring (243) sleeved on the ejector rod, a through hole (6) for the ejector rod (242) to pass through is formed in the clamping piece A (21) and/or the clamping piece B (22), and the rear of the through hole (6) through which the ejector rod (242) passes is abutted to the upper sealing strip (41).
8. A novel gas seal apparatus for a rotary furnace body according to claim 1, wherein: the lower sealing strip (42) is abutted against the fixing ring (1).
9. A novel gas seal apparatus for a rotary furnace body according to claim 1, wherein: and a spiral push rod (7) used for pushing the lower sealing strip (42) to the fixing ring (1) is arranged on the clamping piece B (22).
10. A novel gas seal apparatus for a rotary furnace body according to claim 1, wherein: the limiting piece (3) is a rod piece which is axially parallel to the rotary furnace body (8), a recess (221) is formed in the clamping piece B (22), and the rod piece is clamped in the recess (221) to achieve the purpose of preventing the sealing assembly (2) from rotating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911158090.6A CN110762216A (en) | 2019-11-22 | 2019-11-22 | Novel gas sealing device of rotary furnace body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911158090.6A CN110762216A (en) | 2019-11-22 | 2019-11-22 | Novel gas sealing device of rotary furnace body |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110762216A true CN110762216A (en) | 2020-02-07 |
Family
ID=69338895
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911158090.6A Pending CN110762216A (en) | 2019-11-22 | 2019-11-22 | Novel gas sealing device of rotary furnace body |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110762216A (en) |
-
2019
- 2019-11-22 CN CN201911158090.6A patent/CN110762216A/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN112094166B (en) | Leakage-proof mechanism for assembling waste pot module for ethylene cracking furnace | |
| JP4724727B2 (en) | mechanical seal | |
| CN211175370U (en) | Novel gas sealing device of rotary furnace body | |
| US6808180B2 (en) | Brush seal | |
| CN110762216A (en) | Novel gas sealing device of rotary furnace body | |
| JP5961692B2 (en) | Fittings and fitting assemblies | |
| CN202203413U (en) | Sealing device for biomass pyrolysis rotary furnace | |
| CN111365461B (en) | Thermal compression sealing device | |
| CN203322061U (en) | Sealed rotary support | |
| JP2015230098A (en) | Assembly with rotation shaft seal ring including seal extremity end curved into sinewave shape and the rotation shaft seal ring | |
| US20100219590A1 (en) | Boot mounting structure for constant-speed universal joint, and silicone boot for the constant-speed universal joint | |
| CN203533606U (en) | Novel center cylinder sealing device of air preheater | |
| CN213144990U (en) | Interpolation joint subassembly, joint and air conditioner | |
| CN203413127U (en) | Dry gas seal device of pump double-end-face corrugated pipe | |
| CN212080491U (en) | Three-way compensator for coal powder pipeline sleeve | |
| CN213394086U (en) | High-temperature-resistant rotary compensator | |
| CN211175372U (en) | Gas sealing device of rotary furnace body | |
| CN108571630A (en) | A kind of run-resistant assembling pipe joint | |
| CN210128653U (en) | Sealing device and heat exchanger comprising same | |
| CN110762217A (en) | Gas sealing device of rotary furnace body | |
| JP6086672B2 (en) | Reactor coolant pump | |
| CN112648257A (en) | Hydraulic cylinder and use method | |
| CN104564174B (en) | Elastic sealing structure for turbine fixed blades of gas turbine | |
| CN210715958U (en) | High-pressure tandem type dry gas sealing device | |
| CN220688374U (en) | Explosion-proof high pressure resistant self-sealing rotary compensator |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |