CN201053669Y - Natural circulation hanger tube device of high temperature high pressure natural circulation dry quenched coke residual heat boiler - Google Patents
Natural circulation hanger tube device of high temperature high pressure natural circulation dry quenched coke residual heat boiler Download PDFInfo
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- CN201053669Y CN201053669Y CNU2007200376551U CN200720037655U CN201053669Y CN 201053669 Y CN201053669 Y CN 201053669Y CN U2007200376551 U CNU2007200376551 U CN U2007200376551U CN 200720037655 U CN200720037655 U CN 200720037655U CN 201053669 Y CN201053669 Y CN 201053669Y
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- natural circulation
- heat boiler
- circulation
- residual heat
- tube device
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Abstract
The utility model discloses a natural circulation hanging pipe device for hanging each heating surface in a vertical shaft flue of a high temperature high pressure natural circulation dry coke quenching waste heat boiler. The main technical proposal is that the hanging pipe is used as an independent natural circulation loop, that is, the hanging pipe is directly used as an ascending pipe, the lower end of the hanging pipe is communicated with a steam drum through an inlet collecting box and a downtake, while the upper end of the hanging pipe is communicated with the steam drum through an outlet collecting box and an eduction tube. The structure can improve the safety of boiler water circulation, and guarantee the operation safety of the waste heat boiler, meanwhile, can simplify the circulation loop of an evaporator, reduce the circulation resistance of the evaporator, and is beneficial to the formation of natural circulation of an evaporator.
Description
Technical field
The utility model relates to the high-temperature high-pressure natural circulating dry coke quenching residual heat boiler field, refers more particularly in the vertical well gas flue of this kind boiler in order to hang the suspension tube device of each heating surface.
Background technology
In the vertical well gas flue of high-temperature high-pressure natural circulating dry coke quenching residual heat boiler, be provided with each heating surface---comprise economizer, double effect evaporator and two-stage superheater, wherein economizer adopts the forced circulation loop usually, double effect evaporator adopts natural convection loop, each heating surface particularly double effect evaporator and two-stage superheater adopts the form that hangs to install, and therefore is provided with in vertical well gas flue in order to hang the suspension tube device of double effect evaporator and two-stage superheater.At present, in dry coke quenching residual heat boiler, adopt the fairlead of first evaporator as column pipe mostly, its concrete structure is: the fairlead of first evaporator is connected with the inlet header case of column pipe lower end, and the upper end of column pipe is connected with drum by outlet collection case and fairlead.The shortcoming of the suspension tube device of this structure is: the on-way resistance that can increase first evaporator; And, boiler operatiopn pressure increases, the pressure-bearing of column pipe becomes greatly thereupon, and column pipe will guarantee good heat exchange in high-temperature flue gas, from the thermal conduction study angle, improve rate of circulating flow in the pipe, can obtain good heat exchange effect, but flow velocity increases, the ascending tube system flow resistance also increases, not only cause whole evaporator system circular flow less than normal, also can have a strong impact on the evaporimeter Natural Circulation.
The utility model content
The technical problems to be solved in the utility model is: a kind of circulation resistance that can reduce evaporimeter is provided, helps the Natural Circulation suspension tube device of the high-temperature high-pressure natural circulating dry coke quenching residual heat boiler of evaporimeter Natural Circulation.
For solving the problems of the technologies described above, the technical solution adopted in the utility model is: the Natural Circulation suspension tube device of described high-temperature high-pressure natural circulating dry coke quenching residual heat boiler, be characterized in: with column pipe as natural convection loop independently, that is: with column pipe directly as tedge, its lower end is connected with drum by inlet header case and down-comer, and its upper end is connected with drum by outlet collection case and fairlead.
The utility model has the advantages that: column pipe as a natural convection loop independently, the one, can simplify the evaporimeter closed circuit, reduce the circulation resistance of evaporimeter simultaneously, help the formation of evaporimeter Natural Circulation; The 2nd, can improve the security that high-temperature high-pressure natural circulating dry coke quenching residual heat boiler water circulates.
Description of drawings
Fig. 1 is the structural principle schematic diagram of the Natural Circulation suspension tube device of high-temperature high-pressure natural circulating dry coke quenching residual heat boiler described in the utility model.
The specific embodiment
The utility model will be further described below in conjunction with the drawings and specific embodiments.
As shown in Figure 1, each heating surface in the vertical well gas flue of described dry coke quenching residual heat boiler comprises: economizer 1, first evaporator 2, second level evaporimeter 3, first order superheater 4 and second level superheater 5.The main technical schemes of Natural Circulation suspension tube device described in the utility model is: with column pipe 6 as natural convection loop independently, that is: with column pipe 6 directly as tedge, its lower end is connected with drum 9 by inlet header case 61 and down-comer 7, and its upper end is connected with drum 9 by outlet collection case 62 and fairlead 8.Column pipe as a natural convection loop independently, can improve the security of boiler water cycle, guarantee the security of operation of waste heat boiler, also can simplify the evaporimeter closed circuit simultaneously, reduce the circulation resistance of evaporimeter, help the formation of evaporimeter Natural Circulation.
Claims (1)
1. the Natural Circulation suspension tube device of high-temperature high-pressure natural circulating dry coke quenching residual heat boiler, it is characterized in that: with column pipe as natural convection loop independently, that is: with column pipe directly as tedge, its lower end is connected with drum by inlet header case and down-comer, and its upper end is connected with drum by outlet collection case and fairlead.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200376551U CN201053669Y (en) | 2007-05-21 | 2007-05-21 | Natural circulation hanger tube device of high temperature high pressure natural circulation dry quenched coke residual heat boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200376551U CN201053669Y (en) | 2007-05-21 | 2007-05-21 | Natural circulation hanger tube device of high temperature high pressure natural circulation dry quenched coke residual heat boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201053669Y true CN201053669Y (en) | 2008-04-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200376551U Expired - Lifetime CN201053669Y (en) | 2007-05-21 | 2007-05-21 | Natural circulation hanger tube device of high temperature high pressure natural circulation dry quenched coke residual heat boiler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201053669Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104329654A (en) * | 2014-10-29 | 2015-02-04 | 榆林学院 | Heat pipe quenching waste heat recycling device in internally heated vertical carbonization furnace |
| CN104964264A (en) * | 2015-07-16 | 2015-10-07 | 烟台国冶冶金水冷设备有限公司 | Combined type automatic circulating system of heat recovery boiler |
-
2007
- 2007-05-21 CN CNU2007200376551U patent/CN201053669Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104329654A (en) * | 2014-10-29 | 2015-02-04 | 榆林学院 | Heat pipe quenching waste heat recycling device in internally heated vertical carbonization furnace |
| CN104964264A (en) * | 2015-07-16 | 2015-10-07 | 烟台国冶冶金水冷设备有限公司 | Combined type automatic circulating system of heat recovery boiler |
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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 | ||
| CX01 | Expiry of patent term |
Granted publication date: 20080430 |