CN203868372U - Sealing device for bottom cover machine - Google Patents
Sealing device for bottom cover machine Download PDFInfo
- Publication number
- CN203868372U CN203868372U CN201420318377.7U CN201420318377U CN203868372U CN 203868372 U CN203868372 U CN 203868372U CN 201420318377 U CN201420318377 U CN 201420318377U CN 203868372 U CN203868372 U CN 203868372U
- Authority
- CN
- China
- Prior art keywords
- sealing
- seal
- valve
- valve seat
- spring
- 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.)
- Expired - Lifetime
Links
- 238000007789 sealing Methods 0.000 title abstract description 40
- 238000012856 packing Methods 0.000 claims abstract description 19
- 239000000956 alloy Substances 0.000 claims description 8
- 229910045601 alloy Inorganic materials 0.000 claims description 8
- 230000000694 effects Effects 0.000 abstract description 5
- 238000013461 design Methods 0.000 abstract description 4
- 239000000945 filler Substances 0.000 abstract 2
- 238000009434 installation Methods 0.000 abstract 1
- 239000002184 metal Substances 0.000 abstract 1
- 239000000571 coke Substances 0.000 description 20
- 238000005235 decoking Methods 0.000 description 11
- 238000004939 coking Methods 0.000 description 4
- 239000003921 oil Substances 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 3
- 230000003111 delayed effect Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 210000003625 skull Anatomy 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- 239000000295 fuel oil Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006482 condensation reaction Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000002283 diesel fuel Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000003502 gasoline Substances 0.000 description 1
- 239000002010 green coke Substances 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 210000002445 nipple Anatomy 0.000 description 1
- 238000005504 petroleum refining Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000004227 thermal cracking Methods 0.000 description 1
- 239000001993 wax Substances 0.000 description 1
Landscapes
- Gasket Seals (AREA)
Abstract
Provided is a sealing device for a bottom cover machine. A fixed valve seat and a sealing valve seat are both installed in the valve body, a valve plate is installed between the fixed valve seat and the sealing valve seat, a fixed flange is arranged on the outside of the sealing valve seat and is connected onto the valve body through a fastener, a plurality of cavities are arranged between the fixed flange and the sealing valve seat, a main sealing spring group and a retainer are both installed in the cavities to be connected with the fixed flange and the sealing valve seat, a cavity is further arranged in the retainer and is filled with a sealing filler, and an auxiliary sealing spring group is arranged between the sealing filler and the fixed flange. The sealing device adopts the design of the single valve plate, double metal sealing faces and the pressure bearing cavities, and is simple in structure. The face-to-face distance of the valve body is small, and the valve body is applicable to smaller installation space. Due to the fact that the main sealing spring provides valve plate sealing force, a sealing annular groove is formed in the valve seat to increase the specific pressure, and an auxiliary sealing effect is achieved. Due to the fact that the auxiliary sealing spring provides packing elastic sealing force, sealing between a medium cavity and a spring cavity is reliable, the service life is long, and the valve plate sealing force is provided in an assisting mode.
Description
Technical field
The utility model relates to a kind of auxiliary device of petroleum refining industry delayed coking unit, especially relates to the seal arrangement that a kind of bottom cover machine is used.
Background technique
Delayed coking is a kind of oil secondary operations technology, be heavy oil taking poor hydrogen as raw material, be warmed up to rapidly pyrogenetic reaction temperature through oven, enter coke drum and carry out pyrogenetic reaction.In the high temperature of 500 DEG C, heavy oil is through thermal cracking and the condensation reaction of the degree of depth, and the gas of producing, gasoline, diesel oil, wax oil, be transported to downstream unit processing by pipeline, and the hundreds of upper kiloton coke of producing remains in coke drum.Coke in coke drum is progressively cooled to below 120 DEG C by steam, water, then pull down the upper and lower head sealing cover of coke drum, coke in coke drum is removed clean with hydraulic decoking equipment, be loaded on the upper and lower head sealing cover of coke drum, enter next step production cycle: oil-feed, reaction, cooling, decoking etc.
Past refinery's delayed coking unit is in process of production when coke removal, all need by weigh blind lid and the supply pipe of the upper and lower tower mouth of coke drum of several tons of dismounting hand-manipulated, once need nearly two hours, and operator are easily scalded by water, steam, exist great potential safety hazard, the discharge of a large amount of coke cooling waters is also unfavorable for environmental protection.
Successively under coke drum, tower mouth device or the equipment of the application of tower mouth have at present:
1. tower bottom charging crane:
The working principle of tower bottom charging crane is summarized as follows:
While uncapping, start the oil hydraulic motor of driving driving mechanism, make derrick post pallet center and coke tower central alignment, contact completely with tower bottom, rotate pivoted arm, make pneumtic impact wrench and bolt centering, pedal, starts pneumtic impact wrench, successively unloads bolt by diagonal order.Operation knob, declines coke tower bottom and puts in place.Start driving motor and make car body move to tower mouth under protection cylinder central alignment coke tower, start knob protection cylinder and rise, to contact with tower mouth under coke tower, lower protection tin axially opens completely, decoking starts.Whole uncapping moved.Close while lid order and the reversed in order of uncapping.
2. automatic bottom cover machine:
Automatic bottom cover machine is divided into two stations.
When green coke, equipment connects to form a pressure resistant vessel by skull flange, charging pipe nipple and coke drum and meets coking process and cross range request.When normal work, required sealing force provides by organizing dish spring more.Lock ring is concentrated locking, and protection wound packages is set to hydraulic decoking provides decoking passage, effectively prevents that coke and decoking water from spattering outward, for operator provide good working environment.
When decoking, first give hydraulic bolt off-load, then drive lock ring oil cylinder, skull rotation, the double-screw bolt of hydraulic bolt passes through lower flange.Under lift cylinder effect, lowering or hoisting gear declines, skull flange is opened.Vehicle frame mechanism moves, protection cylinder aligning coke drum center.While starting decoking, upper and lower protection cylinder carries out axially launching motion simultaneously, forms decoking passage; Decoking finishes, and upper and lower protection cylinder is axially regained simultaneously.
3. dull and stereotyped bottom cover machine:
Dull and stereotyped bottom cover machine adopts one side sealing, and sealing surface is the surface of contact of valve seat and valve plate, and sealing force imposes on valve plate by hydraulic bolt through supporting base, and each hydraulic bolt provides sealing force, organizes hydraulic bolt more total sealing force is provided.When action is switched, first injection liquid force feed makes hydraulic bolt unloading, then, by carrying out hydraulic oil cylinder driving valve plate, after having moved, stops to hydraulic bolt fuel feeding.Hydraulic bolt spring loads automatically, realizes the effective sealing of valve body.
Model utility content
The purpose of this utility model is for solving existing seal structure complex, cannot be applied to the problem in little space, the seal arrangement that provides a kind of bottom cover machine to use, and the utility model adopts single valve plate, bimetallic (spring cone) seal face, pressure-bearing cavity design, simple in structure.Valve body face-to-face distance is little, is suitable for less installing space.Provide valve plate sealing force by primary seal cluster spring, valve seat has closure gasket groove to increase specific pressure, and has auxiliary seal effect.Provide packing elastic packing power by auxiliary seal cluster spring, between media cavity and spring chamber, seal reliably, long service life, and assisted Extraction is for valve plate sealing force.
The utility model is the deficiency solving the problems of the technologies described above, and the technological scheme adopting is:
The seal arrangement that a kind of bottom cover machine is used, comprise valve body, fixed valve base, valve plate, seal valve seat, stuffing box packing, primary seal cluster spring, fastening flange, auxiliary seal cluster spring and retainer, fixed valve base and seal valve seat are installed in valve body, and valve plate is arranged between fixed valve base and seal valve seat, fastening flange is arranged on seal valve seat outside and is connected on valve body by fastening piece, between fastening flange and seal valve seat, be provided with a plurality of chambers, primary seal cluster spring and retainer are installed in chamber to be connected and fixed flange and seal valve seat, in retainer, also offer chamber and stuffing box packing is housed, between stuffing box packing and fastening flange, be provided with auxiliary seal cluster spring.
Described valve body adopts flat valve formula welded flange structure.
Described primary seal cluster spring is high temperature alloy spring group, and spring cross section is circle or rectangle.
Described auxiliary seal cluster spring is high temperature alloy spring group, and spring cross section is circular.
Described valve plate adopts flat valve plate.
Described fixed valve base links together by the lower end mouth of fastening piece and valve body.
Described fastening flange links together by the upper end-hole of fastening piece and valve body.
The beneficial effects of the utility model are: the utility model adopts single valve plate, bimetallic (spring cone) seal face, pressure-bearing cavity design, simple in structure.Valve body face-to-face distance is little, is suitable for less installing space.Provide valve plate sealing force by primary seal cluster spring, valve seat has closure gasket groove to increase specific pressure, and has auxiliary seal effect.Provide packing elastic packing power by auxiliary seal cluster spring, between media cavity and spring chamber, seal reliably, long service life, and assisted Extraction is for valve plate sealing force.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is half schematic diagram of plan view in Fig. 1.
Graphical indicia: 1, valve body, 2, fixed valve base, 3, valve plate, 4, seal valve seat, 5, stuffing box packing, 6, primary seal cluster spring, 7, fastening flange, 8, auxiliary seal cluster spring, 9, retainer.
Embodiment
Shown in figure, embodiment is as follows:
The seal arrangement that a kind of bottom cover machine is used, comprise valve body 1, fixed valve base 2, valve plate 3, seal valve seat 4, stuffing box packing 5, primary seal cluster spring 6, fastening flange 7, auxiliary seal cluster spring 8 and retainer 9, fixed valve base 2 and seal valve seat 4 are installed in valve body 1, and valve plate 3 is arranged between fixed valve base 2 and seal valve seat 4, fastening flange 7 is arranged on seal valve seat 4 outsides and is connected on valve body 1 by fastening piece, between fastening flange 7 and seal valve seat 4, be provided with a plurality of chambers, primary seal cluster spring 6 and retainer 9 are installed in chamber to be connected and fixed flange 7 and seal valve seat 4, in retainer 9, also offer chamber and stuffing box packing 5 is housed, between stuffing box packing 5 and fastening flange 7, be provided with auxiliary seal cluster spring 8.
Described valve body 1 adopts flat valve formula welded flange structure.
Described primary seal cluster spring 6 is high temperature alloy spring group, and spring cross section is circle or rectangle.
Described auxiliary seal cluster spring 8 is high temperature alloy spring group, and spring cross section is circular.
Described valve plate 3 adopts flat valve plate.
Described fixed valve base 2 links together by the lower end mouth of fastening piece and valve body 1.
Described fastening flange 7 links together by the upper end-hole of fastening piece and valve body 1.
As shown in the figure, a kind of elastic sealing structure of bottom cover machine, comprises valve body 1, fixed valve base 2, valve plate 3, seal valve seat 4, stuffing box packing 5, primary seal cluster spring 6, fastening flange 7, auxiliary seal cluster spring 8, retainer 9.Seal valve seat 4 is fixed on valve body 1, and fastening flange 7 is connected to valve pocket top by fastening piece, and primary seal cluster spring 6 makes seal valve seat 4 compress valve plate 3 by fastening flange 7; The auxiliary seal cluster spring 8 simultaneously acting on retainer 9 provides the stuffing box packing 5 between sealing force press seal valve seat 4 and fastening flange 2.
Described valve body 1 is flat valve formula welded flange structure.
Described fixed valve base 2 links together by fastening piece and valve body 1 lower end mouth.
Described fastening flange 7 links together by fastening piece and valve body 1 upper end-hole.
Described valve plate 3 is flat valve plate, and valve plate 3 is provided with endoporus, and this endoporus is inside nominal diameter, and forms decoking passage with the cavity of valve seat.
Described primary seal cluster spring 6 is high temperature alloy spring group, and spring cross section is circle or rectangle.It provides the realizing active sealing power of bottom cover machine.
Described auxiliary seal cluster spring 8 is high temperature alloy spring group, and spring cross section is circular.It provides the pretension sealing force of stuffing box packing between the medium raw material chamber of valve body and auxiliary seal air chamber, absorbs axial expansion and the backlash compensation of seal valve seat 4 and valve plate 3 assemblies.
Described retainer 9 is circumferentially located for plane between primary seal cluster spring 6 and auxiliary seal cluster spring 8, in addition as the pretension bearing of stuffing box packing 5.
The novel elastic sealing configuration of a kind of bottom cover machine of the utility model, is the design that realizing active sealing loads bimetal valve seat, simple in structure, reliable.
The technological scheme that the utility model is cited and mode of execution are not restrictions, in the cited technological scheme of the utility model and mode of execution is equal to or effect same approach is all protected at the utility model scope.
Claims (7)
1. the seal arrangement that bottom cover machine is used, it is characterized in that: comprise valve body (1), fixed valve base (2), valve plate (3), seal valve seat (4), stuffing box packing (5), primary seal cluster spring (6), fastening flange (7), auxiliary seal cluster spring (8) and retainer (9), fixed valve base (2) and seal valve seat (4) are installed in valve body (1), and valve plate (3) is arranged between fixed valve base (2) and seal valve seat (4), fastening flange (7) is arranged on seal valve seat (4) outside and is connected on valve body (1) by fastening piece, between fastening flange (7) and seal valve seat (4), be provided with a plurality of chambers, primary seal cluster spring (6) and retainer (9) are installed in chamber to be connected and fixed flange (7) and seal valve seat (4), in retainer (9), also offer chamber and stuffing box packing (5) is housed, between stuffing box packing (5) and fastening flange (7), be provided with auxiliary seal cluster spring (8).
2. the seal arrangement that a kind of bottom cover machine according to claim 1 is used, is characterized in that: described valve body (1) adopts flat valve formula welded flange structure.
3. the seal arrangement that a kind of bottom cover machine according to claim 1 is used, is characterized in that: described primary seal cluster spring (6) is high temperature alloy spring group, and spring cross section is circle or rectangle.
4. the seal arrangement that a kind of bottom cover machine according to claim 1 is used, is characterized in that: described auxiliary seal cluster spring (8) is high temperature alloy spring group, and spring cross section is circular.
5. the seal arrangement that a kind of bottom cover machine according to claim 1 is used, is characterized in that: described valve plate (3) adopts flat valve plate.
6. the seal arrangement that a kind of bottom cover machine according to claim 1 is used, is characterized in that: described fixed valve base (2) links together by the lower end mouth of fastening piece and valve body (1).
7. the seal arrangement that a kind of bottom cover machine according to claim 1 is used, is characterized in that: described fastening flange (7) links together by the upper end-hole of fastening piece and valve body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420318377.7U CN203868372U (en) | 2014-06-16 | 2014-06-16 | Sealing device for bottom cover machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420318377.7U CN203868372U (en) | 2014-06-16 | 2014-06-16 | Sealing device for bottom cover machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203868372U true CN203868372U (en) | 2014-10-08 |
Family
ID=51649327
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420318377.7U Expired - Lifetime CN203868372U (en) | 2014-06-16 | 2014-06-16 | Sealing device for bottom cover machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203868372U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106979379A (en) * | 2017-06-05 | 2017-07-25 | 成都华西流体控制科技有限公司 | A kind of orifice union and the multi-functional combination valve comprising the orifice union |
-
2014
- 2014-06-16 CN CN201420318377.7U patent/CN203868372U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106979379A (en) * | 2017-06-05 | 2017-07-25 | 成都华西流体控制科技有限公司 | A kind of orifice union and the multi-functional combination valve comprising the orifice union |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: LUOYANG JIANGUANG SPECIAL EQUIPMENT CO., LTD. Free format text: FORMER NAME: LUOYANG JIANGUANG PETROCHEMICAL EQUIPMENT FACTORY |
|
| CP03 | Change of name, title or address |
Address after: 471003 Luoyang hi tech Industrial Development Zone, Henan Ankang Road, No. 6 Patentee after: LUOYANG JIANGUANG SPECIAL EQUIPMENT Co.,Ltd. Address before: 471003 No. 11 Gou Gou Industrial Park, hi tech Development Zone, Henan, Luoyang Patentee before: LUOYANG JIANGUANG PETROCHEMICAL EQUIPMENT Co.,Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20141008 |
|
| CX01 | Expiry of patent term |