CN1310862C - Synthetic tower for methanol - Google Patents
Synthetic tower for methanol Download PDFInfo
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- CN1310862C CN1310862C CNB2005100208316A CN200510020831A CN1310862C CN 1310862 C CN1310862 C CN 1310862C CN B2005100208316 A CNB2005100208316 A CN B2005100208316A CN 200510020831 A CN200510020831 A CN 200510020831A CN 1310862 C CN1310862 C CN 1310862C
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Abstract
The present invention discloses a methanol synthetic tower. A center pipe is arranged in a shaft center position in a casing cavity. The upper end and the lower end of a reaction tube bundle axially arranged in a casing are respectively fixedly sealed in corresponding jacks on an upper tube plate and a lower tube plate. An inner sealing head with a discharge port structure is arranged at the bottom of the reaction tube bundle and is fixedly sealed on the bottom surface of the lower tube plate to form a floating downward head. Expansion clearances are reserved between the peripheral of the lower tube plate and the inner wall of the casing, and between the peripheral of the inner sealing head and the inner wall of the casing. The methanol synthetic tower of the present invention overcomes temperature difference stress between the reaction tube bundle and the casing and solves the problem that the inner reaction part of the casing is sealed in a high temperature way; catalyst filling materials are convenient to change, the structure is simple and the manufacture cost is low.
Description
Technical field
The present invention relates to a kind of is the methyl alcohol synthetic reactor of raw material synthesizing methanol with the Sweet natural gas, and the temperature stress that especially can overcome between bundle of reaction tubes and synthetic tower housing is guaranteed synthetic tower safety, and is convenient for changing the methyl alcohol synthetic reactor of catalyst filling.
Background technology
Methyl alcohol synthetic reactor is the heart equipment of methanol production, and strict requirement is all arranged at aspects such as structure, material, operations.Traditional methyl alcohol synthetic reactor bundle of reaction tubes generally is fixed on the lower tubesheet, and last lower tubesheet is welded on the housing respectively.In process of production, because bundle of reaction tubes and tube sheet, the housing manufactured materials is different and the different differential expansions that form of temperature, make the junction of tube sheet and housing and bundle of reaction tubes and tube sheet produce bigger temperature stress, the tube bank that induces reaction is easily broken, cause leakage of reaction gas, shortening device work-ing life, produce industrial accident.In order to overcome above-mentioned temperature stress, China's utility model specification sheets on October 13rd, 2004 disclosed " a kind of methyl alcohol synthetic reactor ", notification number is " CN 2647420Y ", leave the gap between its upper tubesheet and housing, upper tubesheet and end socket constitute the come-up header structure, and floating head and telescopic joint structure solve the thermal compensation problem in this utility model utilization.Though this utility model has solved between bundle of reaction tubes and tube sheet; temperature stress problem between tube sheet and housing; but; upwards expand in the back because bundle of reaction tubes is heated; at high temperature be easy to generate the phenomenon of unstability bending; be easy to generate stress rupture between bundle of reaction tubes and still have potential safety hazard; and; all there is bigger pressure difference between the outer heat exchange medium of reactant gases and reaction tubes under working process or the shutdown situation suddenly; telescopic joint will absorb bigger thermal expansion amount; just require the wall thickness of telescopic joint thinner; the pressure difference that causes telescopic joint to bear is less, and this contradiction has also caused this utility model to be difficult to promote in actual application.Utilize expansion joint structure solution thermal expansion problem, also have equipment component to increase, complex structure, more the catalyst changeout difficulty increases manufacturing cost and the problem of overhauling difficulty.
Summary of the invention
The objective of the invention is to: a kind of temperature stress between bundle of reaction tubes, tube sheet and housing that can overcome in the elevated temperature heat expansion process is provided, bundle of reaction tubes is stable in the assurance high temperature expansion process does not bend, and can change the methyl alcohol synthetic reactor of the catalyst filling in the tower easily.
The technical scheme that technical solution problem of the present invention is adopted is:
A kind of methyl alcohol synthetic reactor of the present invention, in the housing top surface side to being fixed with tracheae and manhole, be provided with pipe core at inner axes position, housing chamber, the sealing that is connected of the top of this pipe and the tracheae that is arranged on housing end face centre, the lower end muzzle of this pipe is inserted, sealing, be fixed on the lower tubesheet that lower horizontal is provided with in the housing chamber, be arranged on the horizontal upper tubesheet of housing chamber internal upper part, its center fixing seal is on the outer wall of pipe core, its edge then fixedly is enclosed on the inwall of housing, and the sidewall of housing is provided with water inlet pipe and rising pipe, it is characterized in that, on the bundle of reaction tubes of the interior axial array of housing, following two ends, fixing seal is last respectively, on the lower tubesheet in the corresponding jack, and the bottom has the interior end socket of spigot discharge structure, fixing seal is raised the nose above water to breathe under constituting on the bottom surface of lower tubesheet, and the week of lower tubesheet along and in end socket week along and the inwall of housing between all leave the expansion clearance, in raising the nose above water to breathe down, alumina balls or porcelain ball are being housed.When the bundle of reaction tubes expanded by heating, owing to leave the expansion clearance between floating head and housing down, tube bank drives lower tubesheet free expansion downwards together, do not come in contact with housing, and under the effect of gravity, keep the stable not crooked of bundle of reaction tubes, this synthetic tower solves the problem of elevated temperature heat expansion and bundle of reaction tubes unstability bending in expansion process by the header structure of floating downward, and simple in structure, low cost of manufacture.
Heat transferring medium and be convenient for changing catalyst filling outside the reactant gases contact tube, a kind of technical scheme of the present invention is in the interior end socket bottom of above-mentioned methyl alcohol synthetic reactor self-sealing packing formula spigot discharge to be installed, the little end socket fixing seal in bottom is outside on the end socket, cover on outside the self-sealing packing formula spigot discharge, two support rings are welded on the discharge tube inwall respectively, circular cover is fixed on support ring 1406 belows, circular shrouding is positioned at support ring 1403 belows, circular shrouding and 1403 of support rings are equipped with wear ring, oval shrouding is positioned at support ring 1403 tops, between oval shrouding and the support ring 1403 wear ring is installed, oval shrouding and circular shrouding compress with the centre bolt sealing.Another kind of technical scheme is the little end socket fixing seal in bottom of above-mentioned synthetic tower outside on the end socket, covers on outside the sealing weld spigot discharge, and the sealing weld spigot discharge is installed in interior end socket bottom, and the welding process sealing is adopted in the discharge tube bottom, severs welding portion when unloading catalyst filling.
The invention has the beneficial effects as follows: adopt the header structure of floating downward; under the condition of high temperature; tube bank is heated and is expanded downwards; because tube sheet; exist the gap freely to expand between end socket and housing downwards; bundle of reaction tubes and housing elevated temperature heat expansible problem have well been solved; unstability buckling phenomenon in the time of when bundle of reaction tubes is heated expansion downwards, can avoiding the bundle of reaction tubes elongation simultaneously; guarantee device security; in interior end socket bottom sealed discharge tube is housed; avoid reactant gases to contact, make the equipment elevated-temperature seal reliable, also be convenient to change simultaneously catalyst filling with the heat transfer outside a tube medium; shorten the time of equipment downtime replacing catalyst filling, improved production efficiency.The present invention is simple in structure in addition, the advantage of long service life.
Description of drawings
The methyl alcohol synthetic reactor vertical section structure synoptic diagram of Fig. 1 conventional art;
Fig. 2 adopts the methyl alcohol synthetic reactor vertical section structure synoptic diagram of floating head and telescopic joint structure;
The vertical section structure synoptic diagram of first specific embodiment of Fig. 3 methyl alcohol synthetic reactor of the present invention;
The vertical section structure synoptic diagram of second specific embodiment of Fig. 4 methyl alcohol synthetic reactor of the present invention;
The structural representation of the self-sealing packing formula spigot discharge of end socket bottom in Fig. 5 methyl alcohol synthetic reactor of the present invention;
The partial schematic diagram of the self-sealing packing formula spigot discharge of end socket bottom in Fig. 6 methyl alcohol synthetic reactor of the present invention;
The structural representation of the sealing weld spigot discharge of end socket bottom in Fig. 7 methyl alcohol synthetic reactor of the present invention.
Wherein: Reference numeral, 1 is the little end socket in bottom, 2 is bundle of reaction tubes, 3 is tracheae, and 4 is alumina balls or porcelain ball, and 5 is tracheae, 6 is pipe core, and 7 is manhole, and 8 is upper tube box, 9 is upper tubesheet, and 10 is housing, and 11 is lower tubesheet, 12 is interior end socket, and 13 is outer end socket, and 14 are self-sealing packing formula spigot discharge, 15 is cartridge filter, and 16 are the sealing weld spigot discharge, and 17 is rising pipe, 18 is water inlet pipe, and 19 is the expansion clearance, and 1401 is centre bolt, 1402 is circular shrouding, and 1403 is support ring, and 1404 is the ellipse shrouding, 1405 is circular cover, and 1406 is support ring, and 1407 is discharge tube, 1408 is wear ring, and 1409 is crossbeam.
Embodiment
Below in conjunction with the drawings and specific embodiments, methyl alcohol synthetic reactor among the present invention is described in further detail and describes.
A kind of embodiment of methyl alcohol synthetic reactor of the present invention such as Fig. 3, in housing 10 top surface side to being fixed with tracheae 5 and manhole 7, be provided with pipe core 6 at inner axes position, housing 10 chamber, the sealing that is connected of the top of this pipe and the tracheae 3 that is arranged on housing 10 end face centres, the lower end muzzle of this pipe is inserted, sealing, be fixed on the lower tubesheet 11 that lower horizontal is provided with in housing 10 chambeies, be arranged on the horizontal upper tubesheet 9 of housing 10 chamber internal upper parts, its center fixing seal is on the outer wall of pipe core 6, its edge then fixedly is enclosed on the inwall of housing 10, constituted upper tube box 8 with housing 10 inwalls, alumina balls or porcelain ball 4 are housed in upper tube box, be used to push down the catalyzer in the bundle of reaction tubes, and the sidewall of housing 10 is provided with water inlet pipe 18 and rising pipe 17, it is characterized in that, on the bundle of reaction tubes 2 of housing 10 interior axial array, following two ends, fixing seal is last respectively, lower tubesheet 9, on 11 in the corresponding jack, and the bottom has the interior end socket 12 of spigot discharge structure, fixing seal is raised the nose above water to breathe under constituting on the bottom surface of lower tubesheet 11, and the week of lower tubesheet 11 along and in end socket 12 week along and the inwall of housing 10 between all leave expansion clearance 19, in raising the nose above water to breathe down, alumina balls or porcelain ball 4 are housed, the reactant gases seepage wherein is evenly distributed, and can plays the effect of supporting the catalyzer in the bundle of reaction tubes 2.Under the working order, water flows into housing 10 by water inlet pipe 18, flow out by rising pipe 17 behind the synthetic heat that discharges of absorption reaction gas, synthesis gas is entered by the tracheae 3 that pipe core 6 tops connect, export by the edgewise tracheae 5 of housing 10 end faces through the methanol gas that pipe core 6, interior end socket 12, bundle of reaction tubes 2, upper tube box 8 afterreactions generate, manhole 7 is in sealed state when flat, opens during the equipment replacement catalyst filling.
Another kind of embodiment such as Fig. 4 of methyl alcohol synthetic reactor of the present invention, in housing 10 top surface side to being fixed with tracheae 5 and manhole 7, be provided with pipe core 6 at inner axes position, housing 10 chamber, the sealing that is connected of the top of this pipe and the tracheae 3 that is arranged on housing 10 end face centres, the lower end muzzle of this pipe is inserted, sealing, be fixed on the lower tubesheet 11 that lower horizontal is provided with in housing 10 chambeies, the bottom of this pipe is equipped with cartridge filter 15, be arranged on the horizontal upper tubesheet 9 of housing 10 chamber internal upper parts, its center fixing seal is on the outer wall of pipe core 6, its edge then fixedly is enclosed on the inwall of housing 10, constituted upper tube box 8 with housing 10 inwalls, and the sidewall of housing 10 is provided with water inlet pipe 18 and rising pipe 17, it is characterized in that, on the bundle of reaction tubes 2 of housing 10 interior axial array, following two ends, fixing seal is last respectively, lower tubesheet 9, on 11 in the corresponding jack, and the bottom has the interior end socket 12 of spigot discharge structure, fixing seal is raised the nose above water to breathe under constituting on the bottom surface of lower tubesheet 11, and the week of lower tubesheet 11 along and in end socket 12 week along and the inwall of housing 10 between all leave expansion clearance 19, in raising the nose above water to breathe down, alumina balls or porcelain ball 4 are housed, the reactant gases seepage wherein is evenly distributed, and can plays the effect of supporting the catalyzer in the bundle of reaction tubes 2.Under the working order, water flows into housing 10 by water inlet pipe 18, flow out by rising pipe 17 behind the synthetic heat that discharges of absorption reaction gas, synthesis gas is entered by the edgewise pipe 5 of housing 10 end faces, export by the tracheae 3 at housing 10 tops through the methanol gas that bundle of reaction tubes 2, interior end socket 12, cartridge filter 15, pipe core 6 afterreactions generate, manhole 7 is in sealed state when flat, opens during the equipment replacement catalyst filling.
Methyl alcohol synthetic reactor of the present invention catalyst filling discharging for convenience, the bottom of the interior end socket 12 in housing 10 chambeies is equipped with self-sealing packing formula spigot discharge 14 structures, the little end socket 1 in bottom is sealed on the outer end socket 13 with bolting by flange arrangement, cover on outside the self-sealing packing formula spigot discharge 14, support ring 1403,1406 are welded on discharge tube inside respectively, circular shrouding 1402 is positioned at support ring 1403 belows, circular shrouding 1402 and 1403 of support rings are placed with wear ring 1408, oval shrouding 1404 is positioned at support ring 1403 tops, be placed with wear ring 1408 between oval shrouding 1404 and the support ring 1403, oval shrouding 1404 and 1401 sealings of circular shrouding 1402 usefulness centre bolts compress, there is through hole at circular cover 1405 centers, horizontal fixed has crossbeam 1409 in support ring 1406, and circular cover 1405 is fixedly mounted on the bolt that stretches out downwards in crossbeam 1409 mid-ways.Under production status, circular shrouding 1402 bottom surfaces are subjected to liquid and upward pressure and compress wear ring 1408, and oval shrouding 1404 is subjected to the downward pressure of gas and compresses wear ring 1408, and the dual seal self-tightening structure has guaranteed the sealing property of end socket under High Temperature High Pressure.When catalyst changeout more, unload the little end socket 1 in bottom, centre bolt 1401 is unclamped, unload circular shrouding 1402, rotate and remove oval shrouding 1404, unload circular cover 1405 again, can carry out the catalyst filling discharging.
The another kind of embodiment of methyl alcohol synthetic reactor of the present invention catalyst filling discharging for convenience, the bottom of the interior end socket 12 in methyl alcohol synthetic reactor housing 10 of the present invention is equipped with sealing weld spigot discharge 16 structures, the little end socket 1 in bottom is sealed on the outer end socket 13 with bolting by flange arrangement, cover on outside the sealing weld spigot discharge 16, sealing weld spigot discharge 16 seals interior end socket in the mode of welding, to guarantee that synthetic gas does not contact with the outer boiled water of pipe in the pipe, when unloading catalyst filling, unload the little end socket 1 in bottom, sever sealing weld spigot discharge 16 again and get final product, after discharging is finished again with sealing weld spigot discharge 16 welded seals.
The invention is not restricted to the scope of embodiment, all utilize innovation and creation that the present invention conceives all at the row of protection.
Claims (7)
1. methyl alcohol synthetic reactor, in housing (10) top surface side to being fixed with tracheae (5) and manhole (7), be provided with pipe core (6) at inner axes position, housing (10) chamber, the sealing that is connected of the top of this pipe and the tracheae (3) that is arranged on housing (10) end face centre, the lower end muzzle of this pipe is inserted, sealing, be fixed on the lower tubesheet (11) that lower horizontal is provided with in housing (10) chamber, be arranged on the horizontal upper tubesheet (9) of housing (10) chamber internal upper part, its center fixing seal is on the outer wall of pipe core (6), its edge then fixedly is enclosed on the inwall of housing (10), and the sidewall of housing (10) is provided with water inlet pipe (18) and rising pipe (17), it is characterized in that: on the bundle of reaction tubes (2) of the interior axial array of housing (10), following two ends, fixing seal is last respectively, in the corresponding jack of lower tubesheet (9) (11), and the bottom has the interior end socket (12) of spigot discharge structure, fixing seal is raised the nose above water to breathe constituting on the bottom surface of lower tubesheet (11) down, and the week of lower tubesheet (11) along and in end socket (12) week the edge and the inwall of housing (10) between all leave expansion clearance (19).
2. methyl alcohol synthetic reactor according to claim 1 is characterized in that, in raising the nose above water to breathe down alumina balls or porcelain ball (4) is housed.
3. methyl alcohol synthetic reactor according to claim 1, it is characterized in that, described tracheae (3) is the synthesis gas inlet pipe, and described tracheae (5) is an escape pipe, in the upper tube box (8) of upper tubesheet (9) upper surface and housing (10) inner-wall surface formation alumina balls or porcelain ball (4) is housed.
4. methyl alcohol synthetic reactor according to claim 1 is characterized in that, described tracheae (3) is an escape pipe, and described tracheae (5) is the synthesis gas inlet pipe, in pipe core (6) bottom cartridge filter (15) is installed.
5. methyl alcohol synthetic reactor according to claim 1, it is characterized in that, interior end socket (12) bottom is equipped with self-sealing packing formula spigot discharge (14), the little end socket in bottom (1) fixing seal is outside on the end socket (13), cover on outside the self-sealing packing formula spigot discharge (14), support ring (1403), (1406) be welded on discharge tube (1407) inwall respectively, circular cover (1405) is installed in support ring (1406) below, circular shrouding (1402) is positioned at support ring (1403) below, between circular shrouding (1402) and support ring (1403) wear ring (1408) is installed, oval shrouding (1404) is positioned at support ring (1403) top, between oval shrouding (1404) and the support ring (1403) wear ring (1408) is installed, oval shrouding (1404) and circular shrouding (1402) compress with centre bolt (1401) sealing.
6. methyl alcohol synthetic reactor according to claim 5, it is characterized in that, there is through hole at circular cover (1405) center, and horizontal fixed has crossbeam (1409) in support ring (1406), and circular cover (1405) is fixedly mounted on the bolt that stretches out downwards in crossbeam (1409) mid-way.
7. methyl alcohol synthetic reactor according to claim 1, it is characterized in that, sealing weld spigot discharge (16) is installed in interior end socket (12) bottom, the little end socket in bottom (1) fixing seal is outside on the end socket (13), cover on outside the sealing weld spigot discharge (16), the welding process sealing is adopted in sealing weld spigot discharge (16) bottom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100208316A CN1310862C (en) | 2005-04-30 | 2005-04-30 | Synthetic tower for methanol |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100208316A CN1310862C (en) | 2005-04-30 | 2005-04-30 | Synthetic tower for methanol |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1696089A CN1696089A (en) | 2005-11-16 |
| CN1310862C true CN1310862C (en) | 2007-04-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100208316A Active CN1310862C (en) | 2005-04-30 | 2005-04-30 | Synthetic tower for methanol |
Country Status (1)
| Country | Link |
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| CN (1) | CN1310862C (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107677159A (en) * | 2017-10-25 | 2018-02-09 | 北京龙电宏泰环保科技有限公司 | A kind of water-borne formula teflon heat exchanger body tube board supporting structure |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2621805Y (en) * | 2003-06-03 | 2004-06-30 | 华东理工大学 | Shell external cooling-thermal insulating and combined fixed bed catalyst chember |
| CN2647420Y (en) * | 2003-10-31 | 2004-10-13 | 河北科技大学 | Shell-and-tube methyl alcohol synthetic reactor |
| CN1181023C (en) * | 1999-09-07 | 2004-12-22 | 犹德有限公司 | Method and arrangement for producing methanol |
| CN2780765Y (en) * | 2005-04-30 | 2006-05-17 | 四川天一科技股份有限公司 | Synthesis tower of methane |
| CN2780764Y (en) * | 2005-04-30 | 2006-05-17 | 四川天一科技股份有限公司 | Synthesis tower of methane |
-
2005
- 2005-04-30 CN CNB2005100208316A patent/CN1310862C/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1181023C (en) * | 1999-09-07 | 2004-12-22 | 犹德有限公司 | Method and arrangement for producing methanol |
| CN2621805Y (en) * | 2003-06-03 | 2004-06-30 | 华东理工大学 | Shell external cooling-thermal insulating and combined fixed bed catalyst chember |
| CN2647420Y (en) * | 2003-10-31 | 2004-10-13 | 河北科技大学 | Shell-and-tube methyl alcohol synthetic reactor |
| CN2780765Y (en) * | 2005-04-30 | 2006-05-17 | 四川天一科技股份有限公司 | Synthesis tower of methane |
| CN2780764Y (en) * | 2005-04-30 | 2006-05-17 | 四川天一科技股份有限公司 | Synthesis tower of methane |
Non-Patent Citations (1)
| Title |
|---|
| 甲醇合成反应用器评述 肖海成等，河南化工，第7卷 2002 * |
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| Publication number | Publication date |
|---|---|
| CN1696089A (en) | 2005-11-16 |
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Address after: High tech Zone Gaopeng road in Chengdu city of Sichuan province 610041 No. 5 Chengdu hi tech Zone Innovation Service Center Patentee after: Haohua Chemical Technology Group Co.,Ltd. Address before: 610000 box 445, Airport Road, Chengdu, Sichuan Patentee before: SICHUAN TIANYI SCIENCE AND TECHNOLOGY Co.,Ltd. |
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Effective date of registration: 20200422 Address after: No. 5 high tech Zone Gaopeng road in Chengdu city of Sichuan Province in 610041 Patentee after: SOUTHWEST RESEARCH & DESIGN INSTITUTE OF CHEMICAL INDUSTRY Address before: High tech Zone Gaopeng road in Chengdu city of Sichuan province 610041 No. 5 Chengdu hi tech Zone Innovation Service Center Patentee before: Haohua Chemical Technology Group Co.,Ltd. |
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