CN217323980U - Cooling device for gasification furnace - Google Patents
Cooling device for gasification furnace Download PDFInfo
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- CN217323980U CN217323980U CN202221085652.6U CN202221085652U CN217323980U CN 217323980 U CN217323980 U CN 217323980U CN 202221085652 U CN202221085652 U CN 202221085652U CN 217323980 U CN217323980 U CN 217323980U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
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Abstract
The utility model discloses a cooling device for gasifier belongs to gasifier cooling arrangement, the utility model discloses the technical problem that solves is that the cold and hot difference in temperature of nozzle tip is big, is unfavorable for the long period operation of nozzle, and the technical scheme of adoption is: including steam pocket, boiler water circulating pump and gasifier, the gasifier top is provided with the nozzle, and the gasifier inside wall is provided with the water-cooling wall, and the steam pocket is linked together through boiler water circulating pump inlet pipeline and boiler water circulating pump's entrance point, and boiler water circulating pump's exit end is provided with boiler water circulating pump outlet pipeline, and boiler water circulating pump outlet pipeline divides two branches: an outlet pipeline of the boiler water circulating pump is communicated with a water inlet of the burner through a burner cooling water inlet pipeline, and a water outlet of the burner is communicated with the steam drum through a burner cooling water return pipeline; the outlet pipeline of the boiler water circulation pump is communicated with the water inlet of the water-cooled wall through a water inlet pipeline of the water-cooled wall, and the water outlet of the water-cooled wall is communicated with the steam pocket through a water return pipeline of the water-cooled wall.
Description
Technical Field
The utility model relates to a cooling device for a gasification furnace, in particular to a cooling device for a gasification furnace.
Background
In entrained flow coal gasification technology, in order to protect the nozzle, tip at the nozzle generally all is equipped with jacket or coil pipe, let the cooling water circulation of jacket or coil pipe flow through boiler water circulating pump, for the sake of safety, boiler water circulating pump generally adopts dual power supply, the stand-by pump can self-starting, some cooling system still can set up an accident cooling water tank alone, use under the emergency that the circulating pump can't open, but cooling water tank can occupy certain space, and the nozzle cooling water temperature of extrinsic cycle cooling mode is generally all lower, nozzle tip cold and hot difference in temperature is big, be unfavorable for the long period operation of nozzle.
Disclosure of Invention
The technical task of the utility model is to provide a cooling device for gasifier, it is big to solve the cold and hot difference in temperature of nozzle tip, is unfavorable for the problem of the long period of operation of nozzle.
The technical task of the utility model is realized in the following way, the cooling device for the gasification furnace comprises a steam drum, a boiler water circulating pump, the gasification furnace and a slag conveyor, wherein the bottom of the steam drum is communicated with the slag conveyor through a boiler blow-off pipeline; the gasifier top is provided with the nozzle, and the gasifier inside wall is provided with the water-cooling wall, and the steam pocket is linked together through boiler water circulating pump inlet pipeline and boiler water circulating pump's entrance point, and boiler water circulating pump's exit end is provided with boiler water circulating pump outlet pipeline, and boiler water circulating pump outlet pipeline divides two branches, and one of them branch road is: an outlet pipeline of the boiler water circulation pump is communicated with a water inlet of the burner through a burner cooling water inlet pipeline, and a water outlet of the burner is communicated with the steam pocket through a burner cooling water return pipeline; the other branch is as follows: the outlet pipeline of the boiler water circulation pump is communicated with the water inlet of the water-cooled wall through a water inlet pipeline of the water-cooled wall, and the water outlet of the water-cooled wall is communicated with the steam pocket through a water return pipeline of the water-cooled wall.
Preferably, a boiler blow-off valve is arranged on the boiler blow-off pipeline.
Preferably, a drum water adding pipeline is arranged on an inlet pipeline of the boiler water circulating pump.
Preferably, the boiler water circulating pump inlet pipeline is communicated with the boiler water circulating pump outlet pipeline through a communicating pipeline, and a communicating valve is arranged on the communicating pipeline.
Preferably, the device further comprises a boiler water circulation standby pump, the inlet end of the boiler water circulation standby pump is communicated with the inlet pipeline of the boiler water circulation pump, the outlet end of the boiler water circulation standby pump is communicated with the outlet pipeline of the boiler water circulation pump, the inlet end of the boiler water circulation standby pump is provided with an inlet valve of the circulation standby pump, and the outlet end of the boiler water circulation standby pump is provided with an outlet valve of the circulation standby pump.
Preferably, a circulating pump inlet valve is arranged at the inlet end of the boiler water circulating pump, and a circulating pump outlet valve is arranged at the outlet end of the boiler water circulating pump.
Preferably, a burner cooling water return valve is arranged on the burner cooling water return pipeline.
Preferably, an emergency discharge pipeline is arranged at one end, close to the burner, of the burner cooling water return valve, one end of the emergency discharge pipeline is communicated with the burner cooling water return pipeline, and the other end of the emergency discharge pipeline is communicated with the slag conveyor.
More preferably, an emergency drain valve is provided on the emergency drain line.
Preferably, a steam drum steam outlet pipeline is arranged at the top of the steam drum.
The utility model discloses a cooling device for gasifier has following advantage:
the cooling water of the burner of the utility model is the water after the heat exchange of the water-cooled wall, so that the temperature of the cooling water is kept high, and the temperature change inside and outside the burner is eased;
secondly, under the special condition that all the boiler water circulating pumps cannot normally operate, the nozzle water outlet valve is closed, the nozzle emergency discharge valve is opened, the nozzle cooling water is changed from closed circulation to open circulation, the nozzle cooling water keeps flowing normally by the pressure in the steam drum, and the nozzle can be continuously cooled;
(III) the utility model discloses a nozzle all discharges to the dragveyer with the drum blowdown promptly, then retrieves to the sediment water system, water economy resource.
The utility model has the characteristics of reasonable in design, simple structure, easily processing, small, convenient to use, a thing is multi-purpose etc, therefore, has fine popularization and use value.
Drawings
The present invention will be further explained with reference to the accompanying drawings.
FIG. 1 is a schematic structural view of a cooling apparatus for a gasification furnace.
In the figure: 1. the boiler water circulation system comprises a steam drum, 2, a steam drum steam outlet pipeline, 3, a boiler blow-down valve, 4, a boiler blow-down pipeline, 5, a burner nozzle cooling water return pipeline, 6, a burner nozzle cooling water return valve, 7, an emergency discharge valve, 8, an emergency discharge pipeline, 9, a slag conveyor, 10, a water wall, 11, a burner nozzle, 12, a gasification furnace, 13, a water wall return pipeline, 14, a burner nozzle cooling water inlet pipeline, 15, a water wall water inlet pipeline, 16, a boiler water circulation pump outlet pipeline, 17, a boiler water circulation pump, 18, a boiler water circulation pump standby pump, 19, a communication pipeline, 20, a circulation pump outlet valve, 21, a circulation pump inlet valve, 22, a communication valve, 23, a boiler water circulation pump inlet pipeline, 24, a steam drum water adding pipeline, 25, a circulation standby pump inlet valve, 26 and a circulation standby pump outlet valve.
Detailed Description
The cooling device for a gasification furnace according to the present invention will be described in detail below with reference to the drawings and specific examples.
In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and for simplification of description. And are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Example (b):
as shown in the attached drawing 1, the utility model discloses a cooling device for gasification furnace, its structure includes steam drum 1, boiler water circulating pump 17, gasification furnace 12 and dragveyer 9, and steam drum play steam pipeline 2 is installed at 1 top of steam drum, and 1 bottom of steam drum is linked together through boiler blow-off pipeline 4 and dragveyer 9, installs boiler blowoff valve 3 on the boiler blow-off pipeline 4. Nozzle 11 is installed at 12 tops of gasifier, and water-cooling wall 10 is installed to 12 inside walls of gasifier, and steam pocket 1 is linked together through boiler water circulating pump inlet pipeline 23 and boiler water circulating pump 17's entrance point, and boiler water circulating pump outlet pipeline 16 is installed to boiler water circulating pump 17's exit end, and boiler water circulating pump outlet pipeline 16 divides two branches, and one of them branch is: a boiler water circulation pump outlet pipeline 16 is communicated with a water inlet of the burner 11 through a burner cooling water inlet pipeline 14, and a water outlet of the burner 11 is communicated with the steam drum 1 through a burner cooling water return pipeline 5; the other branch is as follows: an outlet pipeline 16 of the boiler water circulation pump is communicated with a water inlet of the water-cooled wall 10 through a water inlet pipeline 15 of the water-cooled wall, and a water outlet of the water-cooled wall 10 is communicated with the steam pocket 1 through a water return pipeline 13 of the water-cooled wall. A circulation pump inlet valve 21 is installed at an inlet end of the boiler water circulation pump 17, and a circulation pump outlet valve 20 is installed at an outlet end of the boiler water circulation pump 17.
A drum water adding pipeline 2 is arranged on an inlet pipeline 23 of the boiler water circulating pump in the embodiment; the boiler water circulating pump inlet pipeline 23 is communicated with the boiler water circulating pump outlet pipeline 16 through a communication pipeline 19, and a communication valve 22 is installed on the communication pipeline 19.
The boiler water circulation backup pump 18 is further included in the embodiment, the inlet end of the boiler water circulation backup pump 18 is communicated with the boiler water circulation pump inlet pipeline 23, the outlet end of the boiler water circulation backup pump 18 is communicated with the boiler water circulation pump outlet pipeline 16, the inlet end of the boiler water circulation backup pump 18 is provided with a circulation backup pump inlet valve 25, and the outlet end of the boiler water circulation backup pump 18 is provided with a circulation backup pump outlet valve 26.
A burner cooling water return valve 6 is installed on the burner cooling water return line 5 in this embodiment. An emergency discharge pipeline 8 is installed at one end, close to the burner 11, of the burner cooling water return valve 6, one end of the emergency discharge pipeline 8 is communicated with the burner cooling water return pipeline 5, and the other end of the emergency discharge pipeline 8 is communicated with the slag conveyor 9. An emergency drain valve 7 is installed on the emergency drain line 8.
The working process is as follows:
(1) during normal production, the boiler water circulating pump 17 or the boiler water circulating standby pump 18 is opened, the communicating valve 22 is closed, the boiler water circulating pump 17 or the boiler water circulating standby pump 18 pressurizes water in the steam pocket 1 and then sends the pressurized water to the water cooling wall 10 and the burner 11, cooling water after heat exchange returns to the steam pocket 1, boiler water mainly depends on the heat exchange of the water cooling wall 10 to keep the water temperature, if the pressure in the steam pocket 1 is kept at about 7.0MPa, the water temperature in the steam pocket 1 can be controlled at about 286 ℃, during the operation of the gasification furnace 12, the burner cooling water return valve 6 is kept in a normally open state, and the burner cooling water flow cannot be adjusted randomly.
(2) Under the special condition that boiler water circulating pump 17 and boiler water circulating stand-by pump 18 can not open, intercommunication valve 22 is opened, water-cooling wall 10 becomes the self-loopa by the forced circulation, nozzle cooling water return valve 6 is closed, urgent discharge valve 7 is opened, nozzle cooling water changes open circulation into by closed circulation, make nozzle cooling water return discharge to the slag grab 9 pond of the dragveyer of ordinary pressure by the pressure in steam pocket 1, make nozzle cooling water keep normal flow, thereby continue to protect nozzle 11, the water in the slag grab 9 pond is retrieved again and is utilized in the slag water system.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.
Claims (10)
1. A cooling device for a gasification furnace is characterized by comprising a steam drum, a boiler water circulating pump, the gasification furnace and a slag conveyor, wherein the bottom of the steam drum is communicated with the slag conveyor through a boiler blow-off pipeline; the gasifier top is provided with the nozzle, and the gasifier inside wall is provided with the water-cooling wall, and the steam pocket is linked together through boiler water circulating pump inlet pipeline and boiler water circulating pump's entrance point, and boiler water circulating pump's exit end is provided with boiler water circulating pump outlet pipeline, and boiler water circulating pump outlet pipeline divides two branches, and one of them branch road is: an outlet pipeline of the boiler water circulation pump is communicated with a water inlet of the burner through a burner cooling water inlet pipeline, and a water outlet of the burner is communicated with the steam pocket through a burner cooling water return pipeline; the other branch is as follows: the outlet pipeline of the boiler water circulation pump is communicated with the water inlet of the water-cooled wall through a water inlet pipeline of the water-cooled wall, and the water outlet of the water-cooled wall is communicated with the steam pocket through a water return pipeline of the water-cooled wall.
2. The cooling apparatus for a gasification furnace according to claim 1, wherein a boiler blow-off valve is provided on the boiler blow-off line.
3. The cooling device for the gasification furnace according to claim 1, wherein a drum water-adding line is provided on the inlet line of the boiler water circulating pump.
4. The cooling apparatus for a gasification furnace according to claim 1, wherein the boiler water circulation pump inlet line is connected to the boiler water circulation pump outlet line through a connection line, and a connection valve is provided on the connection line.
5. The cooling device for the gasification furnace as recited in claim 1, further comprising a boiler water circulation backup pump, wherein an inlet end of the boiler water circulation backup pump is communicated with an inlet pipeline of the boiler water circulation pump, an outlet end of the boiler water circulation backup pump is communicated with an outlet pipeline of the boiler water circulation pump, an inlet end of the boiler water circulation backup pump is provided with a circulation backup pump inlet valve, and an outlet end of the boiler water circulation backup pump is provided with a circulation backup pump outlet valve.
6. The cooling apparatus for a gasification furnace according to claim 1, wherein an inlet end of the boiler water circulation pump is provided with a circulation pump inlet valve, and an outlet end of the boiler water circulation pump is provided with a circulation pump outlet valve.
7. The cooling device for the gasification furnace according to claim 1, wherein a burner cooling water return valve is provided on the burner cooling water return line.
8. The cooling device for the gasification furnace as claimed in claim 7, wherein an emergency discharge line is arranged at one end of the burner cooling water return valve close to the burner, one end of the emergency discharge line is communicated with the burner cooling water return line, and the other end of the emergency discharge line is communicated with the slag conveyor.
9. The cooling apparatus for a gasification furnace according to claim 8, wherein an emergency drain valve is provided on the emergency drain line.
10. The cooling device for the gasification furnace according to claim 1, wherein a drum steam outlet line is provided at the top of the drum.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221085652.6U CN217323980U (en) | 2022-05-06 | 2022-05-06 | Cooling device for gasification furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221085652.6U CN217323980U (en) | 2022-05-06 | 2022-05-06 | Cooling device for gasification furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217323980U true CN217323980U (en) | 2022-08-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221085652.6U Active CN217323980U (en) | 2022-05-06 | 2022-05-06 | Cooling device for gasification furnace |
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| Country | Link |
|---|---|
| CN (1) | CN217323980U (en) |
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2022
- 2022-05-06 CN CN202221085652.6U patent/CN217323980U/en active Active
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