CN102213557A - Preheater of synthesis ammonia raw material gas - Google Patents
Preheater of synthesis ammonia raw material gas Download PDFInfo
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- CN102213557A CN102213557A CN 201110092604 CN201110092604A CN102213557A CN 102213557 A CN102213557 A CN 102213557A CN 201110092604 CN201110092604 CN 201110092604 CN 201110092604 A CN201110092604 A CN 201110092604A CN 102213557 A CN102213557 A CN 102213557A
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Abstract
The invention discloses a preheater of synthesis ammonia raw material gas. The preheater comprises a shell and a plurality of groups of coil tube bundles which are arranged in the shell; the shell is of a rectangular tube structure comprising a top plate, a bottom plate, a left side plate and a right side plate; a heat-insulation layer is lined on the inner wall of the shell; the plurality of groups of coil tube bundles are vertically arranged along the shell in parallel, and are supported in the shell through a pipe plate; the raw material gas inlet and raw material gas outlet of each bundle are arranged at the same side plate of the shell; the top plate, the bottom plate and the heat-insulation layer are combined structures of a plurality of prefabricated modules; each prefabricated module is composed of a steel structure and a heat-insulation material poured in the steel structure; the steel structure is of an open box shape; the heat-insulation material is poured in the open box; the number of the prefabricated modules is the same with that of the tube bundles; each prefabricated module is corresponding with one group of tube bundles; the adjacent prefabricated modules are connected through connection pieces; the heat-insulation material is arranged in a joint; and the heat-insulation material is also poured in the inner walls of two side plates. The preheater has the beneficial effects that the manufacturing difficulty of the device is reduced, and the construction cycle is shortened; the overhaul cycle is shortened greatly, and the valid working days are prolonged; and the heat-insulation layer is poured and molded and is seamless, and the heat insulation effect is much better.
Description
Technical field
The present invention relates to a kind of heat exchanger, specifically, is a kind of syngas for synthetic ammonia preheating device.
Background technology
Syngas for synthetic ammonia is the gaseous mixture of air and natural gas (or coal gas), before unstripped gas transforms, need be preheated to the temperature that is fit to conversion, preheating device is arranged on the combustion furnace flue, with the flue gas heating of combustion furnace discharging, and then send into reburner and continue thermal conversion.Existing unstripped gas preheating device comprises that housing and many groups are arranged in the coiled tube bank in the housing, described housing is combined into the rectangular tube structure by top board, base plate, left and right sides plate, the two ends of housing are respectively gas approach and outlet, outlet is bled with air-introduced machine, described multi units tube bundle vertically is arranged in juxtaposition along housing, be supported in the housing by tube sheet, the unstripped gas import and export of all tube banks is arranged on the same side plate of housing, and the inwall of housing is lined with thermal insulation layer.Problem is that because housing is the overall structure that is welded into steel plate, thermal insulation layer have to be built by laying bricks or stones with refractory brick, and on the one hand, the seam of fragment of brick reduces effect of heat insulation; On the other hand, carry out building construction in the housing of sealing, difficulty is big, and efficient is low, and the process-cycle of device is oversize; Especially, when maintenance or replacing tube bank, thermal insulation layer all need be destroyed again and be built by laying bricks or stones, cause the repair time long, make shorten effective working day of enterprise, and cost of overhaul height.
Summary of the invention
Purpose of the present invention is intended to solve the problem of above-mentioned existence, and a kind of syngas for synthetic ammonia preheating device is provided.
Realize that the object of the invention adopts following technical scheme:
A kind of syngas for synthetic ammonia preheating device, comprise that housing and many groups are arranged in the coiled tube bank in the housing, described housing is combined into the rectangular tube structure by top board, base plate, left and right sides plate, the two ends of housing are respectively gas approach and outlet, the inwall of housing is lined with thermal insulation layer, described multi units tube bundle vertically is arranged in juxtaposition along housing, is supported in the housing by tube sheet, and the unstripped gas import and export of all tube banks is arranged on the same side plate of housing; Described top board, base plate are a plurality of Prefabricated block combining structures together with its thermal insulation layer, described Prefabricated block is made of steel construction piece and the heat-barrier material that is cast in the steel construction piece, this steel construction piece is an opening-box, heat-barrier material is cast in the uncovered box, the quantity of described Prefabricated block is identical with tube bank, the corresponding one group of tube bank of each Prefabricated block, and contiguous prefabricated module connects with connector, be filled with heat-barrier material in the seam, the inwall of described left and right sides plate also is cast with heat-barrier material.
In the pouring heat insulating material of described Prefabricated block some anchor studs are arranged, this anchor studs is welded in the uncovered box.
The pouring heat insulating material of described Prefabricated block is a light-weight refractory cement.
The heat-barrier material that is filled with in the described Prefabricated block seam is the high alumina ceramic fiber.
Be respectively equipped with bobbin carriage on the plate of the described left and right sides, its quantity and position are corresponding with tube bank, and the unstripped gas import and export of all tube banks is positioned at the bobbin carriage on the same side plate; The inwall of bobbin carriage is lined with general aluminium ceramic fibre thermal insulation layer.
Described base plate has pillar.
Described top board and base plate are provided with reinforcement.
Beneficial effect of the present invention:
Because the module combinations structure is adopted on the top board of housing and floor, reduced the device manufacture difficulty, shortened the site operation cycle, particularly each module is detachable connection, when turnaround of unit or replacing tube bank, can take top board and floor apart, needn't destroy thermal insulation layer, can shorten the time between overhauls(TBO) significantly, prolong effective working day, and reduce recondition expense.The thermal insulation layer moulding by casting does not have the slit, and effect of heat insulation is more excellent.
Description of drawings
Fig. 1 is the structural representation of this device;
Fig. 2 is the vertical view of Fig. 1;
Fig. 3 is the structure chart of a heat exchange unit among Fig. 1;
Fig. 4 is the A-A view of Fig. 3;
Fig. 5 is the B-B view of Fig. 3;
Fig. 6 is the structural representation of Prefabricated block;
Fig. 7 is the enlarged drawing of local I among Fig. 3;
Fig. 8 is the enlarged drawing of local II among Fig. 3;
Fig. 9 is the enlarged drawing of local III among Fig. 3;
Figure 10 is the enlarged drawing of local IV among Fig. 3;
Figure 11 is the enlarged drawing of local V among Fig. 3;
Figure 12 is the enlarged drawing of local VI among Fig. 4;
Figure 13 is the enlarged drawing of local VII among Figure 12.
The specific embodiment
Referring to Fig. 1 to Fig. 6.
This syngas for synthetic ammonia preheating device, comprise that housing and many groups are arranged in the coiled tube bank 5 in the housing, described housing is combined into the rectangular tube structure by top board 1, base plate 2, left and right sides plate 3,4, and the two ends of housing are respectively gas approach and outlet, and outlet connects air-introduced machine.The inwall of housing is lined with thermal insulation layer, and multi units tube bundle 5 vertically is arranged in juxtaposition along housing, is supported in the housing by its tube sheet 6.The unstripped gas import and export of all tube banks 5 is arranged on the side plate 3 or 4 of housing.This apparatus features is, described top board 1, base plate 2 are a plurality of Prefabricated block combining structures together with its thermal insulation layer, described Prefabricated block is made of steel construction piece 7 and the light-weight refractory cement heat-barrier material 8 that is cast in the steel construction piece, this steel construction piece 7 is an opening-box, heat-barrier material 8 is cast in the uncovered box, some anchor studs 9 are arranged in the heat-barrier material, and this anchor studs 9 is welded on the base plate of uncovered box, makes heat-barrier material 8 difficult drop-offs.The uncovered box plate back side also is welded with I-beam 12 and strengthens.The quantity of Prefabricated block is identical with tube bank, and the corresponding one group of tube bank of each Prefabricated block forms a plurality of heat exchange units arranged side by side, and the joint portion of contiguous prefabricated module is provided with adpting flange 10, with bolt contiguous prefabricated module is connected.Prefabricated block as top board 1 is provided with tube sheet fitting recess 17, and its position is corresponding with tube sheet 6.For guaranteeing sealing and effect of heat insulation, in the seam of adjacent block, be filled with high alumina ceramic fibrous insulating material 16.Base plate 2 has pillar 11, and this device is supported on the basis.
The inwall of and arranged on left and right sides plate 3,4 has the opening of corresponding tube bank 5, and bobbin carriage 14,15 is welded on this opening, and the unstripped gas import and export of all tube banks is positioned at bobbin carriage 14 or 15 separately; The inwall of bobbin carriage 14,15 is lined with high alumina ceramic fibrous insulating layer (heat-barrier material) 16.The inwall of and arranged on left and right sides plate 3,4 also is cast with light-weight refractory cement heat-barrier material 8, and contains anchor studs 9.
Bobbin carriage 14 is seen Fig. 7 with the Prefabricated block joint portion of top board 1, during assembling, bobbin carriage 14 is welded on the I-beam reinforcement 12-1 of top board 1 Prefabricated block.
Bobbin carriage 15 is seen Fig. 8 with the Prefabricated block joint portion of base plate 2.During assembling, bobbin carriage 15 is welded on the I-beam reinforcement 12-2 of base plate 2 Prefabricated blocks.
Referring to Fig. 9, Figure 10: tube bank 5 is supported in the housing by its tube sheet 6, and the upper end of tube sheet 6 is embedded in the tube sheet fitting recess 17 of top board Prefabricated block, and base plate 2 Prefabricated blocks are provided with back-up block 13, and the lower end of tube sheet 6 is supported on this back-up block 13.
Referring to Figure 11: import and export pipeline at the unstripped gas of bobbin carriage 14 and pass through the position, be provided with stuffing box 18, seal.
Referring to Figure 12: the pillar 11 that is positioned at four bights of this device is long struts, penetrates into the device top always, and with 3,4 welding of and arranged on left and right sides plate.
Referring to Figure 13: four bights of this device also are welded with hanger 19, use when welding with civilian dress.
Claims (7)
1. syngas for synthetic ammonia preheating device, comprise that housing and many groups are arranged in the coiled tube bank in the housing, described housing is combined into the rectangular tube structure by top board, base plate, left and right sides plate, the two ends of housing are respectively gas approach and outlet, the inwall of housing is lined with thermal insulation layer, described multi units tube bundle vertically is arranged in juxtaposition along housing, is supported in the housing by tube sheet, and the unstripped gas import and export of all tube banks is arranged on the same side plate of housing; It is characterized in that: described top board, base plate are a plurality of Prefabricated block combining structures together with its thermal insulation layer, described Prefabricated block is made of steel construction piece and the heat-barrier material that is cast in the steel construction piece, this steel construction piece is an opening-box, heat-barrier material is cast in the uncovered box, the quantity of described Prefabricated block is identical with tube bank, the corresponding one group of tube bank of each Prefabricated block, and contiguous prefabricated module connects with connector, be filled with heat-barrier material in the seam, the inwall of described left and right sides plate also is cast with heat-barrier material.
2. syngas for synthetic ammonia preheating device according to claim 1 is characterized in that: in the pouring heat insulating material of described Prefabricated block some anchor studs are arranged, this anchor studs is welded in the uncovered box.
3. syngas for synthetic ammonia preheating device according to claim 1 and 2 is characterized in that: the pouring heat insulating material of described Prefabricated block is a light-weight refractory cement.
4. syngas for synthetic ammonia preheating device according to claim 1 is characterized in that: the heat-barrier material that is filled with in the described Prefabricated block seam is the high alumina ceramic fiber.
5. syngas for synthetic ammonia preheating device according to claim 1, it is characterized in that: be respectively equipped with bobbin carriage on the plate of the described left and right sides, its quantity and position are corresponding with tube bank, the unstripped gas import and export of all tube banks is positioned at the bobbin carriage on the same side plate, and the inwall of bobbin carriage is lined with general aluminium pottery fibrous insulating layer.
6. syngas for synthetic ammonia preheating device according to claim 1 is characterized in that: described base plate has pillar.
7. syngas for synthetic ammonia preheating device according to claim 1 is characterized in that: described top board and top board are provided with reinforcement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110092604A CN102213557B (en) | 2011-04-14 | 2011-04-14 | Preheater of synthesis ammonia raw material gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110092604A CN102213557B (en) | 2011-04-14 | 2011-04-14 | Preheater of synthesis ammonia raw material gas |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102213557A true CN102213557A (en) | 2011-10-12 |
| CN102213557B CN102213557B (en) | 2012-09-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110092604A Expired - Fee Related CN102213557B (en) | 2011-04-14 | 2011-04-14 | Preheater of synthesis ammonia raw material gas |
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| Country | Link |
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| CN (1) | CN102213557B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104390504A (en) * | 2014-11-18 | 2015-03-04 | 什邡市同佳机械有限公司 | Boiler energy-saving device, and method and tool for manufacturing S-shaped fin heat exchange tube of boiler energy-saving device |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4910848A (en) * | 1989-01-25 | 1990-03-27 | The Babcock & Wilcox Company | Method of assembling a boiler unit having pre-assembled walls |
| CN1067730A (en) * | 1991-06-08 | 1993-01-06 | 冶金工业部马鞍山钢铁设计研究院 | Utilize flue gas and hot blast method and device for the heating heavy oil of thermal source |
| CN2190272Y (en) * | 1994-01-28 | 1995-02-22 | 姜同明 | Effective cast air preheater |
| CN2545555Y (en) * | 2002-05-14 | 2003-04-16 | 高国纯 | Vertical tube heat exchanger |
| CN2685791Y (en) * | 2004-01-19 | 2005-03-16 | 山东鲁阳股份有限公司 | Clean coke oven gas-collecting pipe full fiber liner |
| CN1609542A (en) * | 2004-11-03 | 2005-04-27 | 广西壮族自治区桂林化工机械厂 | Jacketed striated pipe deflection rod heat exchanger |
| CN201322564Y (en) * | 2008-10-24 | 2009-10-07 | 江苏凯特尔工业炉有限公司 | Air preheater |
| CN202109792U (en) * | 2011-04-14 | 2012-01-11 | 什邡市同佳机械有限公司 | Synthesis ammonia feed gas preheating device |
-
2011
- 2011-04-14 CN CN201110092604A patent/CN102213557B/en not_active Expired - Fee Related
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4910848A (en) * | 1989-01-25 | 1990-03-27 | The Babcock & Wilcox Company | Method of assembling a boiler unit having pre-assembled walls |
| CN1067730A (en) * | 1991-06-08 | 1993-01-06 | 冶金工业部马鞍山钢铁设计研究院 | Utilize flue gas and hot blast method and device for the heating heavy oil of thermal source |
| CN2190272Y (en) * | 1994-01-28 | 1995-02-22 | 姜同明 | Effective cast air preheater |
| CN2545555Y (en) * | 2002-05-14 | 2003-04-16 | 高国纯 | Vertical tube heat exchanger |
| CN2685791Y (en) * | 2004-01-19 | 2005-03-16 | 山东鲁阳股份有限公司 | Clean coke oven gas-collecting pipe full fiber liner |
| CN1609542A (en) * | 2004-11-03 | 2005-04-27 | 广西壮族自治区桂林化工机械厂 | Jacketed striated pipe deflection rod heat exchanger |
| CN201322564Y (en) * | 2008-10-24 | 2009-10-07 | 江苏凯特尔工业炉有限公司 | Air preheater |
| CN202109792U (en) * | 2011-04-14 | 2012-01-11 | 什邡市同佳机械有限公司 | Synthesis ammonia feed gas preheating device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104390504A (en) * | 2014-11-18 | 2015-03-04 | 什邡市同佳机械有限公司 | Boiler energy-saving device, and method and tool for manufacturing S-shaped fin heat exchange tube of boiler energy-saving device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102213557B (en) | 2012-09-12 |
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