CN201327014Y - Fixed subcritical pressure steam injection boiler - Google Patents
Fixed subcritical pressure steam injection boiler Download PDFInfo
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- CN201327014Y CN201327014Y CNU200920148443XU CN200920148443U CN201327014Y CN 201327014 Y CN201327014 Y CN 201327014Y CN U200920148443X U CNU200920148443X U CN U200920148443XU CN 200920148443 U CN200920148443 U CN 200920148443U CN 201327014 Y CN201327014 Y CN 201327014Y
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Abstract
The utility model provides a fixed subcritical pressure steam injection boiler, which comprises a boiler body and a boiler auxiliary system. The boiler body is composed of a radiation segment, a convection segment, a transition segment, a water heat exchanger, a chimney and a crow seat; the boiler auxiliary system comprises a steam-water system, a combustion system, a sampling and cooling system and an automatic control system; the boiler is installed on the crow seat in an entire manner; a radiation segment shell adopts a multi-point assembly welding cylindrical structure which is rolled by a steel plate, and the shell is lined with aluminum silicate refractory fibers; the convection segment is arranged in a smoke flue at the tail part of the boiler, and is lined with a boiler liner the same as that of the radiation segment; and the transition segment is arranged between the radiation segment and the convection segment. The boiler improves the heat efficiency, reduces the smoke discharging temperature, reduces the manufacturing difficulty of the boiler, and brings convenience to maintenance. The safe and stable running of the boiler can provide high-efficiency guarantee for the thermal power oil production technology.
Description
Technical field
The utility model belongs to boiler and makes the field, relates to injection boiler in a kind of oilfield exploitation, is specifically related to a kind of novel fixed subcritical pressure pouring boiler furnace.
Background technology
As everyone knows, particularly exist abundant viscous crude resource in the Liaohe Oil Field in China, concerning present each viscous crude field, injection boiler has been indispensable oil recovery auxiliary equipment.In thickened oil recovery, fixed subcritical pressure pouring boiler furnace is the thermal recovery equipment of extensive use in the heavy crude heat extraction exploitation.But mostly this type boiler that uses at present on the market is the product of the nineties in last century, and heat transfer efficiency is low, exhaust gas temperature is high, preparation is chaotic, technological obsolescence, thereby causes satisfying modern needs of scale production well.
In order to adapt to modern needs of scale production, need a kind of injection boiler that overcomes above-mentioned defective.
The utility model content
At the deficiency of existing injection boiler, the utility model technological invention people repeatedly tests and studies, and has proposed the novel fixed subcritical pressure pouring boiler furnace that a kind of suitable heavy crude heat extraction is used.
According to fixed subcritical pressure pouring boiler furnace of the present utility model, this fixed subcritical pressure pouring boiler furnace comprises boiler body and boiler accessory system; Boiler body is made up of radiant section, convection section, changeover portion, water-to-water heat exchanger, chimney and sled seat, and the boiler accessory system comprises vapour one water system, combustion system, sampling cooling system, automatic control system; The boiler integral installation is on the sled seat, and shell of radiation chamber is the cylindrical structure that is rolled the more piece assembly welding that forms by steel plate, the liner aluminosilicate refractory fiber; Convection section is positioned in the boiler back end ductwork, in be lined with the furnace lining identical with radiant section; Changeover portion is between radiant section and convection section; Radiant section tube bank in the radiant section is the seamless steel pipe of the high temperature high voltage resistant of 60 φ 89mm * 13mm, and with 180 ° of elbows these steel pipes is connected into tube bank, and tube bank is near furnace lining, back and forth arrangement.
Wherein, the sealing device at the import and export pipe place of radiant section is to compress asbestos cord, the heat-preservation cotton of jumping a queue outward in the sleeve pipe.
Preferably, the import top of changeover portion is that arc, bottom are semicircular structure.
Preferably, heating tube in section of convection chamber is divided into two kinds of finned tube and light pipes; In finned tube, 180 ° of elbows connect into tube bank trapezoidal, that multilayer is parallel, that back and forth arrange with finned tube, and per two rows adopt long radius cross-over connection elbow to connect; Light pipe is used for four layers in the convection section bottom, and the arrangement mode of convection current light pipe is the reciprocal solid matter of level, adopts short-radius bend to connect.
More preferably, radiant section and changeover portion heat-insulation layer adopt 2 layers of general fibre blanket, and lay one deck choke aluminium foil, and flame retardant coating is laid high-purity ceramic fiber folded piece, under lay lightening casting material in the scope; The whole lightening casting material of laying of convection section.
Adopt the boiler of said structure pattern, compact conformation, rationally distributed.By optimal design, improved boiler thermal output, reduced exhaust gas temperature, reduced the boiler manufacture difficulty, easy to maintenance, solved the defective that existing boiler exists, it is moved with security and stability, for providing efficiently, thermodynamic oil extraction process ensures.
Brief Description Of Drawings
Fig. 1 is a kind of general structure schematic diagram of fixed subcritical pressure pouring boiler furnace;
Fig. 2 is a kind of fixed subcritical pressure pouring boiler furnace radiant section schematic diagram;
Fig. 3 is that conventional radiant section goes out oral siphon sealing schematic diagram;
Fig. 4 is that a kind of fixed subcritical pressure pouring boiler furnace radiant section goes out oral siphon sealing schematic diagram;
Fig. 5 is conventional connected mode schematic diagram;
Fig. 6 is an arch connected mode schematic diagram;
Fig. 7 sees fiery apparatus structure schematic diagram;
Fig. 8 is the reciprocal solid matter formula of a convection current light pipe level schematic diagram;
Fig. 9 is the staggered solid matter formula schematic diagram of convection current light pipe;
Figure 10 is a heat preservation method technology schematic diagram.
The specific embodiment
Below in conjunction with accompanying drawing, the fixed subcritical pressure pouring boiler furnace that the utility model proposes is described in detail.
In Fig. 1 to Fig. 8, the parts that the mark among the figure is represented are as follows respectively:
1 chimney, 2 convection sections, 3 changeover portions, 4 radiant sections, 5 water-to-water heat exchangers, 6 burners, 7 air blasts, 8 switch boards, 9 air compressor machines, 10 supply-water pumps, 11 sled seats, 12 manhole doors, 13 peepholes, 14 every tube, 15 bolts, 16 general fibre felts, 17 choke aluminium foils, 18 high-purity ceramic fiber folded pieces.
Fixed subcritical pressure pouring boiler furnace of the present utility model comprises by boiler body and boiler accessory system two large divisions and forming.Boiler body is the major part of injection boiler, and it is made up of radiant section, convection section, changeover portion, water-to-water heat exchanger, chimney and sled seat etc.The boiler accessory system mainly contains vapour one water system, combustion system, sampling cooling system, automatic control system composition.The boiler integral installation is on the sled seat, and shell of radiation chamber is the cylindrical structure that is rolled the more piece assembly welding that forms by steel plate, the liner aluminosilicate refractory fiber.Convection section is positioned in the boiler back end ductwork, in be lined with the furnace lining identical with radiant section.Changeover portion is between radiant section and convection section.The radiant section tube bank is the seamless steel pipe of the high temperature high voltage resistant of 60 φ 89mm * 13mm, and these steel pipes are connected into tube bank with 180 ° of elbows, tube bank is back and forth arranged near furnace lining, wherein adding the hot water section, to select 55 root timber matter for use be the seamless steel pipe of φ 89mm * 13mm of 20G, and it is the seamless steel pipe of φ 89mm * 13mm of 15CrMoG that vaporizing zone is selected 5 root timber matter for use.
Wherein, the sealing device of radiant section import and export pipe adopts in the sleeve pipe and compresses asbestos cord, the process of the heat-preservation cotton of jumping a queue outward.Arc is adopted on changeover portion import top, and semicircular connected mode is adopted in the bottom.Heating tube in section of convection chamber is divided into two kinds of finned tube and light pipes, with 180 ° of elbows finned tube is connected into tube bank trapezoidal, that multilayer is parallel, that back and forth arrange, and per two rows adopt long radius cross-over connection elbows to connect, and are convenient to blow ash and maintenance.Light pipe is used for four layers in the convection section bottom, and the arrangement mode of convection current light pipe is the reciprocal solid matter of level, adopts short-radius bend to connect.
Additionally, radiant section and changeover portion heat-insulation layer adopt 2 layers of general fibre blanket, and lay one deck choke aluminium foil, and flame retardant coating is laid high-purity ceramic fiber folded piece, under lay lightening casting material in the scope; The whole lightening casting material of laying of convection section.
More specifically, be explained as follows:
By designing and calculating, determined the overall structure and the technological process of boiler, and, boiler has been carried out being optimized design in conjunction with the problem that the oil field The field is occurred, solved the different problems that existing boiler produces when operation.Its technical scheme is:
General structure and structural principle are as shown in fig. 1, this utility model is fixed subcritical pressure pouring boiler furnace, and this boiler comprises chimney 1, convection section 2, changeover portion 3, radiant section 4, water-to-water heat exchanger 5, burner 6, air blast 7, switch board 8, air compressor machine 9, supply-water pump 10 and some little devices.Boiler integral body is installed on the sled seat 11.Radiant section 4 is main heating surfaces of boiler, and convection section 2 is auxiliary heating surfaces of boiler, is arranged in the boiler back end ductwork, and changeover portion 3 is between convection section 2 and radiant section 4, and a semicircle flue gas that plays the connection effect turns to passage.
Please refer to Fig. 2, shell of radiation chamber is the cylindrical structure that is rolled the more piece assembly welding that forms by steel plate, and the liner aluminosilicate refractory fiber avoids furnace heat to loose outward with the protection shell of radiation chamber, to the boiler tube reflecting heat, reduces radiation loss.60 (seamless steel pipes of high temperature high voltage resistant of φ 89mm * 13mm) are arranged in the radiant section, wherein to select 5 root timber matter for use be the seamless steel pipe of 15CrMoG to vaporizing zone, through calculating, evaporation point is near these 5 pipes, these 5 pipes tube wall temperature in actual motion is too high, and booster is used 15CrMoG material pipe easily, can increase pipe intensity greatly, reduce the booster phenomenon.
Please refer to Fig. 3, Fig. 4, the sealing of radiant section gateway pipe and blow-off pipe is adopted in the sleeve and is compressed asbestos cord, the mode of the heat-preservation cotton of jumping a queue outward replaces original mode of welding plate sealing together, the heat-preservation cotton of jumping a queue on end plate, makes the gap location insulation tighter, prevents the flue gas leakage effectively.
Please refer to Fig. 5, Fig. 6, changeover portion convection section and radiant section between, a semicircle flue gas that plays the connection effect turns to passage.Housing is the arcuate structure that is rolled by steel plate, liner castable refractory and alumina silicate fibre.Because changeover portion with radiant section interface flue gas flow rate is big, heat flow density is big, often causes insulation material burning to take off, for overcoming this drawback, we adopt domes.
Please refer to Fig. 7, see that fiery device is positioned at the rear of changeover portion, original square being improved to every tube of seeing fiery device trapezoidally enlarged the visual field every tube 14, can not only observe the flame burning state, can also observe the situation of boiler tube combustion zone and vaporizing zone.Manhole door 12 after the improvement adopts bolt 15 to be connected with peephole 13, is convenient to install, dismantles and maintenance, and the long-term impact that has solved high-temperature flue gas easily causes the damage of fastener (screw thread).
Please refer to Fig. 8, Fig. 9, per two rows of convection section finned tube adopt long radius cross-over connection elbow to connect, and form tube bank trapezoidal, multilayer, parallel, that back and forth arrange.Light pipe is used for four layers in the convection section bottom, and the arrangement mode of convection current light pipe is improved by original stagger arrangement solid matter becomes the reciprocal solid matter of level, adopts short-radius bend to connect.Greatly reduce the welding difficulty, improved welding quality, be convenient to flaw detection, improved the weld bond qualification rate, and make the user easy to maintenance.Soldering opening for light pipe: by former whole be that to be optimized for major part be that the survivor of a murder attempt welds (be welded into and be similar to the walking stick pattern) to dead mouthful of welding of straight tube.
Please refer to Figure 10, radiant section and changeover portion heat-insulation layer adopt 2 layers of general fibre blanket 16, and lay one deck choke aluminium foil 17, and flame retardant coating is laid high-purity ceramic fiber folded piece 18, under lay the lightening casting material in the scope optimal design.And the whole lightening casting material of laying in the convection section.According to than the tiling heat preservation technology, this heat preservation technology can guarantee the boiler casing temperature less than 80 ℃, and has improved boiler evenly heat efficient.
In addition, although the clear in the above technical scheme that the utility model proposes that described in detail, but with reference to preferred embodiment of the present utility model, this area those skilled in the art be appreciated that, under the situation of the spirit and scope of the present utility model that do not deviate from the claims definition, can in form and details, make various modifications.Therefore, all should fall within the protection domain of the present utility model with reference to the various modifications that technical solutions of the utility model are made.
Claims (5)
1. fixed subcritical pressure pouring boiler furnace, it comprises boiler body and boiler accessory system; Boiler body is made up of radiant section, convection section, changeover portion, water-to-water heat exchanger, chimney and sled seat, and the boiler accessory system comprises vapour-water system, combustion system, sampling cooling system, automatic control system; The boiler integral installation is on the sled seat, and shell of radiation chamber is the cylindrical structure that is rolled the more piece assembly welding that forms by steel plate, the liner aluminosilicate refractory fiber; Convection section is positioned in the boiler back end ductwork, in be lined with the furnace lining identical with radiant section; Changeover portion is between radiant section and convection section; Radiant section tube bank in the radiant section is the seamless steel pipe of the high temperature high voltage resistant of 60 φ 89mm * 13mm, and with 180 ° of elbows these steel pipes is connected into tube bank, and tube bank is near furnace lining, back and forth arrangement.
2. according to the fixed subcritical pressure pouring boiler furnace in the claim 1, the sealing device that it is characterized in that the import and export pipe place of radiant section is to compress asbestos cord, the heat-preservation cotton of jumping a queue outward in the sleeve pipe.
3. according to the fixed subcritical pressure pouring boiler furnace in the claim 1, the import top that it is characterized in that changeover portion is that arc, bottom are semicircular structure.
4. according to the fixed subcritical pressure pouring boiler furnace in the claim 1, it is characterized in that heating tube in section of convection chamber is divided into two kinds of finned tube and light pipes; In finned tube, 180 ° of elbows connect into tube bank trapezoidal, that multilayer is parallel, that back and forth arrange with finned tube, and per two rows adopt long radius cross-over connection elbow to connect; Light pipe is used for four layers in the convection section bottom, and the arrangement mode of convection current light pipe is the reciprocal solid matter of level, adopts short-radius bend to connect.
5. according to the fixed subcritical pressure pouring boiler furnace among the claim 1-4, it is characterized in that radiant section and changeover portion heat-insulation layer adopt 2 layers of general fibre blanket, and lay one deck choke aluminium foil, flame retardant coating is laid high-purity ceramic fiber folded piece, under lay lightening casting material in the scope; The whole lightening casting material of laying of convection section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200920148443XU CN201327014Y (en) | 2009-04-08 | 2009-04-08 | Fixed subcritical pressure steam injection boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200920148443XU CN201327014Y (en) | 2009-04-08 | 2009-04-08 | Fixed subcritical pressure steam injection boiler |
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| Publication Number | Publication Date |
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| CN201327014Y true CN201327014Y (en) | 2009-10-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNU200920148443XU Expired - Fee Related CN201327014Y (en) | 2009-04-08 | 2009-04-08 | Fixed subcritical pressure steam injection boiler |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102537922A (en) * | 2012-01-17 | 2012-07-04 | 中国石油天然气第八建设有限公司 | Module skid-mounting type steam generator with 5t/h and below special for oil field |
| CN102537923A (en) * | 2012-01-18 | 2012-07-04 | 中国石油天然气第八建设有限公司 | Light tube and container type special steam generator specially for oilfields |
| CN104180359A (en) * | 2014-09-04 | 2014-12-03 | 中国石油天然气第八建设有限公司 | Large-tonnage subcritical pressure steam generator |
-
2009
- 2009-04-08 CN CNU200920148443XU patent/CN201327014Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102537922A (en) * | 2012-01-17 | 2012-07-04 | 中国石油天然气第八建设有限公司 | Module skid-mounting type steam generator with 5t/h and below special for oil field |
| CN102537923A (en) * | 2012-01-18 | 2012-07-04 | 中国石油天然气第八建设有限公司 | Light tube and container type special steam generator specially for oilfields |
| CN104180359A (en) * | 2014-09-04 | 2014-12-03 | 中国石油天然气第八建设有限公司 | Large-tonnage subcritical pressure steam generator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: CNPC BOHAI EQUIPMENT MANUFACTURING CO., LTD. Free format text: FORMER OWNER: GENERAL MACHINERY FACTORY, LIAOHE PETROLEUM EXPLORATION BUREAU;GENERAL MACHINERY FACTORY, LIAOHE PET Effective date: 20130423 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 124209 PANJIN, LIAONING PROVINCE TO: 300457 HANGU, TIANJIN |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20130423 Address after: 300457 building 3, Binhai service outsourcing park, No. 19 West Ring Road, Tianjin Development Zone Patentee after: CNPC Bohai Equipment Manufacturing Co., Ltd. Address before: 124209 Red Village street, Xinglongtai District, Liaoning, Panjin Patentee before: Machinery Plant of Liaohe Petroleum Exploration Bureau |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091014 Termination date: 20180408 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |