CN201122075Y - External part adjustable soldered sealing high pressure heat exchanger - Google Patents
External part adjustable soldered sealing high pressure heat exchanger Download PDFInfo
- Publication number
- CN201122075Y CN201122075Y CNU2007201694388U CN200720169438U CN201122075Y CN 201122075 Y CN201122075 Y CN 201122075Y CN U2007201694388 U CNU2007201694388 U CN U2007201694388U CN 200720169438 U CN200720169438 U CN 200720169438U CN 201122075 Y CN201122075 Y CN 201122075Y
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Abstract
The utility model relates to a welded sealing high-pressure heat exchanger with an adjustable external part used in the field of petrochemical industry, which comprises a tube plate (3), a tube side inlet (4), a channel cylindrical body (5) and a channel flange (6), etc. The tube plate (3) is arranged in the middle section of a case body (19), the channel cylindrical body (5) is arranged on the external part of the case body (19), the channel flange (6) is connected with a channel flange cover (8) through a king bolt (9), a flexible membrane gasket seal (7) is arranged between the channel flange (6) and the channel flange cover (8), the case body (19) is provided with a split-ranging box (13) and a heat-exchange tube (17), and an inner sleeve (15) is arranged inside the case body (19). The welded sealing high-pressure heat exchanger greatly reduces the manufacture difficulty, decreases the equipment weight, and can realize the sealing between the tube shells by screwing down an inner bolt directly. In addition, the sealing reliability is enhanced and simultaneously the defect that the fixing bolt of the tube plate is prone to seizure is avoided, thereby reducing the workload of the on-site welding effectively when the heat exchanger is installed.
Description
Technical field
The utility model is used for petrochemical industry high-voltage tube shell heat exchanger, belongs to the petrochemical equipment technical field, specifically, is the adjustable welded seal high pressure heat exchanger in a kind of outside.
Background technology
Along with the development and the environmental protection requirement of national economy, development low-sulfur clean fuel is urgent day by day at present; Along with the heaviness of oil product, hydroprocessing techniques such as hydrofinishing, hydro-upgrading and hydrocracking are the important means that changes oil property, reduces sulfur content in the oil product in addition.Petrochemical industry is as the pillar industry of country, and country will give priority to and build various hydrogenation plants recent years.And hydrogenation heat exchanger is mainly energy-conservation as hydrogenation plant, joint consumption equipment, is indispensable equipment in the hydrogenation plant.
The hydrogenation plant processing medium is inflammable and explosive, and is in HTHP, faces the operation down of hydrogen and hydrogen-sulfide environmental, requires equipment that very high sealing reliability is arranged.It is the structure or the screw-threaded coupling ring structure of big flange that the high-pressure hydrogenation heat exchanger of present hydrogenation heat exchanger home and abroad adopts the tube sheet both sides mostly.Big flange arrangement metal consumption is big, and seals unreliablely, has used less after the maximization along with the increase of hydrogenation device for treatment amount and heat transmission equipment.
What use was more on the present large-scale at home hydrogenation plant is screw thread shrink ring structure, this sealing structure reliability is better, the heat exchange dead band is little, do not stop work for the leakage device between the shell journey and just can eliminate by tightening the inner ring bolt, in dismounting when tube bank, also needn't mobile shell in addition, thereby the bobbin carriage gateway can directly be welded with pipe arrangement mutually, has reduced leakage point.But there is following shortcoming in this structure:
1. complex structure, machined piece is many, and the installation of heat exchanger, dismantlement work amount are also bigger;
2. separating and joining ring and internal-flange bolt are easily killed, and cause the dismounting difficulty;
3. thread-locking ring major thread requirement on machining accuracy height, its difficulty of processing is also bigger.
4. along with the maximization of heat exchanger, sealing reliability decreases.
It is two kinds of new structures developing recently on the advantage basis that combines screw thread shrink ring and Ω boxing connection pad sheet that the Ω boxing that the hermetically-sealed construction of diaphragm type welding gasket and band are regulated connects the gasket seal structure, these two kinds of structures all adopt the welding gasket sealing, do not exist and leak the interface, improved the reliability of sealing.But there is following defective in these two kinds of structures:
The hermetically-sealed construction of diaphragm type welding gasket:
Because the set bolt of tube sheet is in heat exchanger inside, under mode of operation,, can't realize that the sealing of not stopping work to tube sheet carries out fastening again when between the shell journey during string leakage;
Because the set bolt of tube sheet is fastened on the bobbin carriage cylindrical shell, is in for a long time under high-temperature hydro-refining, the Korrosionsmedium environment, adds higher stress, screw thread is easily killed to following heat exchanger maintenance, dismounting and is caused difficulty.Especially the heat exchanger that the bobbin carriage inwall is had anti-corrosion overlay cladding is because fastening bolt is deep into the above-mentioned situation of mother metal and more is prone to.
The Ω boxing that the end band is regulated connects the gasket seal structure
" hold the Ω boxing of band adjusting to connect the gasket seal structure " though can overcome above-mentioned " hermetically-sealed construction of diaphragm type welding gasket " defective, but have following drawback:
End cap adopts the Ω boxing to connect hermetically-sealed construction because the Ω ring size makes that more greatly the bolt circle layout is bigger, and corresponding bobbin carriage end flange size is also bigger, has increased weight of equipment and investment;
Since Ω boxing connection pad sheet by two independently " half Ω ring " pad form, on-the-spot welding job amount is bigger.
Summary of the invention
The purpose of this utility model is to provide a kind of outside adjustable welded seal high pressure heat exchanger, and it greatly reduces manufacture difficulty, has reduced weight of equipment, and device just needn't be stopped work and can be realized sealing between the shell journey by directly tightening the inner ring bolt; In addition, the drawback of when having improved sealing reliability, also having avoided the set bolt of tube sheet easily to kill, on-the-spot welding job amount when effectively having reduced heat exchanger and installing.
The utility model is achieved in that and comprises shell side inlet 1, tube sheet gasket seal 2, tube sheet 3, tube side inlet 4, bobbin carriage cylindrical shell 5, channel flange 6, flexible partition welded seal pad 7, channel flange lid 8, kingbolt 9, reconcile bolt 10, ejector pin 11, regulate bolt pressure ring 12, divide journey case 13, reinforcing ring 14, inner sleeve 15, tube side outlet 16, heat exchanger tube 17, shell side outlet 18, at the middle part of casing 19 tube sheet 3 is housed, bobbin carriage cylindrical shell 5 is equipped with in the outside of casing 19, channel flange 6 and channel flange lid 8 is connected by kingbolt 9, be provided with flexible partition welded seal pad 7 between channel flange 6 and the channel flange lid 8, reconcile bolt 10, ejector pin 11, regulating bolt pressure ring 12 connects successively, branch journey case 13 is housed on the casing 19, heat exchanger tube 17 is equipped with inner sleeve 15 in the casing 19.
Be respectively equipped with shell side inlet 1, tube side inlet 4 on the top of casing 19, be respectively equipped with tube side outlet 16, shell side outlet 18 in the bottom of casing 19,
Be provided with tube sheet gasket seal 2 between casing 19 and the tube sheet 3.
Advantage of the present utility model is:
Compare with the screw thread shrink ring, cancelled bobbin carriage parts such as the internal-flange bolt in the thread-locking ring, separating and joining ring; Major thread retaining ring with the bobbin carriage end changes blind flange into simultaneously, greatly reduces manufacture difficulty;
The bobbin carriage end flange adopts welded type gasket seal structure, and the equipment kingbolt has less load, has reduced weight of equipment;
Compare with " diaphragm type welded seal gasket construction ", offer a circle internal thread hole on the big blind flange of bobbin carriage end, device just needn't be stopped work and can be realized sealing between the shell journey by directly tightening the inner ring bolt; In addition, the drawback of when having improved sealing reliability, also having avoided the set bolt of tube sheet easily to kill;
Compare with " the Ω boxing of band adjusting connects the gasket seal structure ", owing to cancelled the Ω ring on the welding gasket of bobbin carriage end, reduced the welding gasket size, bolt circle and bobbin carriage end flange, blind flange external diameter also reduce thereupon, heat exchanger bobbin carriage end construction is compact more, has further reduced weight of equipment;
Compare with " the Ω boxing of band adjusting connects the gasket seal structure ", reduced by " half a Ω ring " pad, adopted " the single metal welding gasket " of band flex region, do not need welding between pad and the blind flange, only just can realize the sealing of bobbin carriage medium, on-the-spot welding job amount when effectively having reduced the heat exchanger installation with angle welding of bobbin carriage end flange existence.
Description of drawings
Accompanying drawing is a structural representation of the present utility model.
The specific embodiment
As shown in drawings, the utility model is by shell side inlet 1, tube sheet gasket seal 2, tube sheet 3, tube side inlet 4, bobbin carriage cylindrical shell 5, channel flange 6, flexible partition welded seal pad 7, channel flange lid 8, kingbolt 9, reconcile bolt 10, ejector pin 11, regulate bolt pressure ring 12, divide journey case 13, reinforcing ring 14, inner sleeve 15, tube side outlet 16, heat exchanger tube 17, shell side exports 18 compositions such as grade, at the middle part of casing 19 tube sheet 3 is housed, bobbin carriage cylindrical shell 5 is equipped with in the outside of casing 19, channel flange 6 and channel flange lid 8 is connected by kingbolt 9, be provided with flexible partition welded seal pad 7 between channel flange 6 and the channel flange lid 8, reconcile bolt 10, ejector pin 11, regulating bolt pressure ring 12 connects successively, branch journey case 13 is housed on the casing 19, heat exchanger tube 17 is equipped with inner sleeve 15 in the casing 19.Be respectively equipped with shell side inlet 1, tube side inlet 4 on the top of casing 19, be respectively equipped with tube side outlet 16, shell side outlet 18 in the bottom of casing 19, be provided with tube sheet gasket seal 2 between casing 19 and the tube sheet 3.
Channel flange lid 8 is fixed on the channel flange 6 by kingbolt 9, on channel flange lid 8, offer a circle and regulate bolt 10, pass to ejector pin 11 by tightening adjusting bolt 10, regulate bolt pressure ring 12, flex region by flexible partition welded seal pad 7 produces necessarily degree of disturbing distortion power is passed to reinforcing ring 14, inner sleeve 15 again, thereby holds out against tube sheet 3 and compress the sealing that tube sheet gasket seal 2 is realized between pipe, shell.
The sealing of bobbin carriage cylindrical shell 5 realizes that by tube sheet gasket seal 2 tube sheet gasket seal 2 can adopt a steel plate manufacturing, and a side is welded on the channel flange 6 by angle welding, and opposite side need not weld and abut against channel flange and cover 8 surfaces.The bobbin carriage medium all seals by welding, does not exist to leak the interface.The pressure that the bobbin carriage medium produces is then born by channel flange lid 8; Flexible partition welded seal pad 7 is provided with one section flex region simultaneously, is regulating generation certain deformation transmission thrust under bolt 10 effects.
The utility model combines widely used screw thread shrink ring structure on petrochemical equipment at present, and the Ω boxing that combines diaphragm type welded seal structure and band adjusting connects the advantage of gasket seal structure, the heat transmission equipment of a kind of brand new newly developed, it has characteristics such as leakage point simple in structure, no, weight of equipment be light, has broad application prospects at large-scale petrochemical hydrogenation plant and other high pressure heat exchange field.
Effectively solve the not high problem of hydrogenation plant maximization back high pressure heat exchanger sealing reliability; Solve the not high and big problem of thread-locking ring difficulty of processing of thread-locking ring heat exchanger maximization back sealing reliability. Solved that diaphragm type welded seal gasket construction tube sheet set bolt is easily killed and can not be in the problem of self-tightening under the suspended state not; Solved that Ω boxing that band regulates connects gasket seal structure pad and flange size is big, the on-the-spot welding job amount of pad bigger problem.
Claims (3)
1. outside adjustable welded seal high pressure heat exchanger, comprise shell side inlet (1), tube sheet gasket seal (2), tube sheet (3), tube side inlet (4), bobbin carriage cylindrical shell (5), channel flange (6), flexible partition welded seal pad (7), channel flange lid (8), kingbolt (9), reconcile bolt (10), ejector pin (11), regulate bolt pressure ring (12), divide journey case (13), reinforcing ring (14), inner sleeve (15), tube side outlet (16), heat exchanger tube (17), shell side outlet (18), it is characterized in that: tube sheet (3) is housed at the middle part of casing (19), bobbin carriage cylindrical shell (5) is equipped with in the outside of casing (19), channel flange (6) is connected by kingbolt (9) with channel flange lid (8), between channel flange (6) and the channel flange lid (8) flexible partition welded seal pad (7) is installed, reconcile bolt (10), ejector pin (11), regulating bolt pressure ring (12) connects successively, be separately installed with branch journey case (13) on the casing (19), heat exchanger tube (17) is set with inner sleeve (15) in the casing (19).
2. the adjustable welded seal high pressure heat exchanger in outside according to claim 1, it is characterized in that: be respectively equipped with shell side inlet (1), tube side inlet (4) on the top of casing (19), be respectively equipped with tube side outlet (16), shell side outlet (18) in the bottom of casing (19).
3. the adjustable welded seal high pressure heat exchanger in outside according to claim 1 is characterized in that: be provided with tube sheet gasket seal (2) between casing (19) and the tube sheet (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201694388U CN201122075Y (en) | 2007-06-27 | 2007-06-27 | External part adjustable soldered sealing high pressure heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201694388U CN201122075Y (en) | 2007-06-27 | 2007-06-27 | External part adjustable soldered sealing high pressure heat exchanger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201122075Y true CN201122075Y (en) | 2008-09-24 |
Family
ID=40009307
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201694388U Expired - Lifetime CN201122075Y (en) | 2007-06-27 | 2007-06-27 | External part adjustable soldered sealing high pressure heat exchanger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201122075Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104913667A (en) * | 2015-06-18 | 2015-09-16 | 北京化工大学 | D-shaped bolt U-shaped pipe high-pressure heat exchanger |
| CN110332004A (en) * | 2019-08-09 | 2019-10-15 | 王德明 | Coal mining cooling system with the heat exchange of high-voltage secondary cooling water |
-
2007
- 2007-06-27 CN CNU2007201694388U patent/CN201122075Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104913667A (en) * | 2015-06-18 | 2015-09-16 | 北京化工大学 | D-shaped bolt U-shaped pipe high-pressure heat exchanger |
| CN110332004A (en) * | 2019-08-09 | 2019-10-15 | 王德明 | Coal mining cooling system with the heat exchange of high-voltage secondary cooling water |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20080924 |
|
| CX01 | Expiry of patent term |