CN201053670Y - Forced circulation hanger tube device of high temperature high pressure natural circulation dry quenched coke residual heat boiler - Google Patents
Forced circulation hanger tube device of high temperature high pressure natural circulation dry quenched coke residual heat boiler Download PDFInfo
- Publication number
- CN201053670Y CN201053670Y CNU2007200376570U CN200720037657U CN201053670Y CN 201053670 Y CN201053670 Y CN 201053670Y CN U2007200376570 U CNU2007200376570 U CN U2007200376570U CN 200720037657 U CN200720037657 U CN 200720037657U CN 201053670 Y CN201053670 Y CN 201053670Y
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- Prior art keywords
- heat boiler
- hanging
- residual heat
- pressure natural
- tube device
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Abstract
The utility model discloses a 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 an eduction tube of a coal economizer is used as a hanging pipe for hanging an evaporator and a steam drum. The concrete structure is that an eduction tube of the coal economizer is communicated with an inlet collecting box at the lower end of the hanging pipe; the upper end of the hanging pipe is communicated with the steam drum through an outlet collecting box and the eduction pipe. The structure can cause a steam-water circulation loop of the hanging pipe and a steam-water circulation loop of the coal economizer to form a serial connected forced circulation loop, can improve the safety of the boiler water circulation, guarantee the operation safety of the waste heat boiler, meanwhile is greatly convenient for the arrangement and installation of each heating surface in the vertical shaft flue.
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 column pipe 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 forced 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 forced circulation suspension tube device of described high-temperature high-pressure natural circulating dry coke quenching residual heat boiler is characterized in: the fairlead that utilizes economizer is as the column pipe that hangs evaporimeter and superheater.That is: the fairlead with economizer 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 utility model has the advantages that: utilize economizer fairlead effect column pipe, the one, can simplify the evaporimeter closed circuit, reduce the circulation resistance of evaporimeter simultaneously, help the formation of evaporimeter Natural Circulation; The 2nd, also help the layout of economizer closed circuit.
Description of drawings
Fig. 1 is the structural principle schematic diagram of the forced 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 forced circulation suspension tube device described in the utility model is: the fairlead 6 that utilizes economizer 1 is as the column pipe that hangs evaporimeter 2,3 and superheater 4,5, its concrete structure is: the fairlead 6 of economizer 1 is connected with the inlet header case 71 of column pipe 7 lower ends, and the upper end of column pipe 7 is connected with drum 9 by outlet collection case 72 and fairlead 8; Because economizer 1 all adopts the forced circulation loop, so utilize the part of the fairlead 6 of economizer 1 as column pipe, just can make column pipe carbonated drink closed circuit form the forced circulation loop of connecting with economizer carbonated drink closed circuit, can improve the security of boiler water cycle, guarantee the security of operation of waste heat boiler, also greatly facilitated the layout and the installation of each heating surface in the vertical well gas flue simultaneously.
Claims (1)
1. the forced circulation suspension tube device of high-temperature high-pressure natural circulating dry coke quenching residual heat boiler, it is characterized in that: the fairlead that utilizes economizer is as the column pipe that hangs evaporimeter and superheater, that is: the fairlead with economizer 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.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200376570U CN201053670Y (en) | 2007-05-21 | 2007-05-21 | Forced 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 |
|---|---|---|---|
| CNU2007200376570U CN201053670Y (en) | 2007-05-21 | 2007-05-21 | Forced circulation hanger tube device of high temperature high pressure natural circulation dry quenched coke residual heat boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201053670Y true CN201053670Y (en) | 2008-04-30 |
Family
ID=39393333
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200376570U Expired - Lifetime CN201053670Y (en) | 2007-05-21 | 2007-05-21 | Forced circulation hanger tube device of high temperature high pressure natural circulation dry quenched coke residual heat boiler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201053670Y (en) |
-
2007
- 2007-05-21 CN CNU2007200376570U patent/CN201053670Y/en not_active Expired - Lifetime
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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 |