CN210543446U - Device for recycling steam in methanation reaction system - Google Patents
Device for recycling steam in methanation reaction system Download PDFInfo
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- CN210543446U CN210543446U CN201920847283.1U CN201920847283U CN210543446U CN 210543446 U CN210543446 U CN 210543446U CN 201920847283 U CN201920847283 U CN 201920847283U CN 210543446 U CN210543446 U CN 210543446U
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- valve
- steam
- outlet
- deoxygenator
- pump
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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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/124—Water desalination
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Abstract
The utility model discloses a device for recycling steam in a methanation reaction system, which comprises a deoxygenator 2 and a blowdown flash tank 6; a desalted water inlet of the deoxygenator is connected with an outlet of the pump I through a valve II 9, desalted water is introduced into an inlet of the pump I through a valve I8, a deoxidized and desalted water outlet of the deoxygenator is connected with an outlet of the pump II through a valve IV 13, and deoxidized and desalted water is introduced into an inlet of the pump II through a valve V12; the steam outlet of the deoxygenator is connected with an emptying pipe through an emptying valve VII 19, and is simultaneously connected with the inlet of an air cooler through a valve III 10, and the outlet of the air cooler is connected with a condensate recovery pool through a valve IV 11; blowdown steam port of blowdown flash drum lets in blowdown steam through valve VII 14, and the steam outlet of blowdown flash drum passes through blow-down valve XII 19 and connects the blow-down pipe, connects the import of heat exchanger tube side through valve VIII 15 simultaneously, and the export of heat exchanger tube side is through valve IX 6 connection condensate recovery pond. The utility model discloses the realization has reduced the running cost to the high-efficient utilization of the energy.
Description
Technical Field
The utility model relates to a methanation reaction system field specifically is with the process units who retrieves after cooling liquefaction the steam that produces in deoxygenator and the blowdown flash tank among the methanation reaction system and recycle.
Background
In the process of methanation production of coke oven gas, steam diffused by the deaerator and the blowdown flash tank causes environmental pollution and energy waste, and in order to save energy and control the environment, the diffused steam is recycled. Steam diffused by the deaerator passes through an air cooler (provided with a forced cooling fan), and steam diffused by the blowdown flash tank is cooled to be condensed fluid by using a water cooler (a tube type heat exchanger), and the condensed fluid is led to a condensed fluid collecting tank and returns to a raw water tank for reuse. The transformation saves energy, achieves the effect of environmental management, and has important significance for improving regional environment and economic benefit.
Disclosure of Invention
The utility model provides a solve at the in-process of coke oven gas methanation production, environmental pollution and the extravagant problem of energy have been caused to the steam that oxygen-eliminating device and blowdown flash tank diffused, provide a steam condensation liquefaction recycling device in blowdown flash tank and the oxygen-eliminating device.
The utility model discloses an adopt following technical scheme to realize:
a device for recycling steam in a methanation reaction system comprises a deoxygenator and a blowdown flash tank.
A desalted water inlet of the deoxygenator is connected with an outlet of the pump I through a valve II, desalted water is introduced into an inlet of the pump I through the valve I, a deoxidized and desalted water outlet of the deoxygenator is connected with an outlet of the pump II through a valve IV), and deoxidized and desalted water is introduced into an inlet of the pump II through a valve V; and a steam outlet of the deoxygenator is connected with a vent pipe through a vent valve VII and is simultaneously connected with an inlet of an air cooler through a valve III, and an outlet of the air cooler is connected with a condensate recovery pool through a valve IV.
Blowdown steam vent of blowdown flash drum lets in blowdown steam through valve VII, the steam outlet of blowdown flash drum connects the blow-down pipe through blow-down valve XII, connects heat exchanger tube side import through valve VIII simultaneously, heat exchanger tube side export is connected the condensate recovery pond through valve IX.
When the methanation process system works, desalted water enters the deoxygenator through the water pump, and deoxygenated desalted water enters the methanation process system through the water pump. The deoxygenator is emptied when the pressure of water vapor generated in the deoxygenation process is too high; when the steam pressure meets the process requirement, the condensed water cooled by the air cooler enters a condensed water recovery pool.
And the sewage vapor enters the water generated in the sewage flash tank and enters a sewage system. Low-pressure steam generated in the blowdown flash tank enters emptying when the pressure is too high; when the pressure meets the process requirement, the condensed water enters a heat exchanger, and the condensed water obtained after the water vapor is cooled enters a condensed water recovery pool.
And water in the condensed water collecting tank is recycled in the raw water tank.
Process units steam that utilizes oxygen-eliminating device and blowdown flash tank to diffuse cool off the recovery and recycle, realized the high-efficient utilization to the energy, reduced the running cost, concrete fine practical application and spreading value.
Drawings
Fig. 1 shows a schematic view of the present invention.
In the figure: 1-a water pump I, 2-a deoxygenator, 3-an air cooler, 4-a water pump II, 5-a heat exchanger, 6-a blowdown flash tank and 7-a condensate recovery tank; 8-valve I, 9-valve II, 10-valve III, 11-valve IV, 12-valve V, 13-valve VI, 14-valve VII, 15-valve VIII, 16-valve IX, 17-valve X, 18-valve XI, 19-blow-down valve XII.
Detailed Description
The following describes in detail specific embodiments of the present invention with reference to the accompanying drawings.
A device for recycling steam in a methanation reaction system comprises a deoxygenator 2 and a blowdown flash tank 6.
As shown in fig. 1, a desalted water inlet of a deoxygenator 2 is connected with an outlet of a pump I1 through a valve II 9, desalted water is introduced into an inlet of the pump I1 through a valve I8, a deoxidized desalted water outlet of the deoxygenator 2 is connected with an outlet of a pump II 4 through a valve IV 11, and deoxidized desalted water is introduced into an inlet of the pump II 4 through a valve V12; the steam outlet of the deoxygenator 2 is connected with a blow-down pipe through a blow-down valve XII 19 and is simultaneously connected with the inlet of the air cooler 3 through a valve III 10, and the outlet of the air cooler 3 is connected with a condensate water recovery tank 7 through a valve IV 11.
As shown in figure 1, blowdown steam is introduced into a blowdown steam port of the blowdown flash tank 6 through a valve VII 14, a valve XI 18 is installed at a blowdown port of the blowdown flash tank 6, a steam outlet of the blowdown flash tank 6 is connected with a vent pipe through a vent valve XII 19 and is simultaneously connected with a tube pass inlet of the heat exchanger 5 through a valve VIII 15, and a tube pass outlet of the heat exchanger 5 is connected with a condensate recovery tank 7 through a valve IX 16.
As shown in fig. 1, a valve x 17 is installed at the bottom of the condensate recovery tank 7.
When the methanation process system works specifically, 1, a valve I8, a valve II 9, a valve V12 and a valve VI 13 are opened, desalted water enters a deoxygenator 2 through a water pump I1, and deoxygenated desalted water after deoxygenation treatment enters a methanation process system through a water pump II 4.
2. When the pressure of the water vapor generated in the deoxygenation process in the deoxygenator 2 is too high, opening a blow valve XII 19 and entering a blow pipe; when the steam pressure meets the process requirement, a valve III 10 and a valve IV 11 are opened, the cooled condensate water passes through the air cooler 3 and enters the condensate water recovery tank 7.
3. The valves VII 14 and XI 18 are opened, the blow-off steam enters the blow-off flash tank 6, and the water generated in the blow-off flash tank 6 enters a blow-off system.
4. When the pressure of the low-pressure steam generated in the blowdown flash tank is too high, the valve XII 19 is opened, and the steam enters the emptying pipe; when the steam pressure meets the process requirement, a valve VIII 15 and a valve IX 16 are opened and enter the heat exchanger 5, and the condensed water of the steam after cooling enters a condensed water recovery pool 7.
5. The valve X17 is opened, and the water in the condensed water collection tank 17 is reused in the raw water tank.
The utility model discloses utilize the steam that the oxygen-eliminating device diffuses to cool off and retrieve and recycle, utilize the steam that the blowdown flash tank diffuses to cool off and retrieve and recycle.
It should be noted that, for those skilled in the art, without departing from the principle of the present invention, several modifications and applications can be made, and these modifications and applications are also considered as the protection scope of the present invention.
Claims (1)
1. A device for recycling steam in a methanation reaction system comprises a deoxygenator (2) and a blowdown flash tank (6); the method is characterized in that: a desalted water inlet of the deoxygenator (2) is connected with an outlet of the pump I (1) through a valve II (9), desalted water is introduced into an inlet of the pump I (1) through a valve I (8), a deoxygenated desalted water outlet of the deoxygenator (2) is connected with an outlet of the pump II (4) through a valve IV (11), and deoxygenated desalted water is introduced into an inlet of the pump II (4) through a valve V (12); a steam outlet of the deoxygenator (2) is connected with a vent pipe through a vent valve XII (19), and is simultaneously connected with an inlet of the air cooler (3) through a valve III (10), and an outlet of the air cooler (3) is connected with a condensate water recovery tank (7) through a valve IV (11);
blowdown steam port of blowdown flash drum (6) lets in blowdown steam through valve VII (14), the steam outlet of blowdown flash drum (6) passes through blow-down valve XII (19) and connects the blow-down pipe, simultaneously connects heat exchanger (5) tube side import through valve VIII (15), heat exchanger (5) tube side export is through valve IX (16) connection condensate recovery pond (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920847283.1U CN210543446U (en) | 2019-06-06 | 2019-06-06 | Device for recycling steam in methanation reaction system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920847283.1U CN210543446U (en) | 2019-06-06 | 2019-06-06 | Device for recycling steam in methanation reaction system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210543446U true CN210543446U (en) | 2020-05-19 |
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ID=70666271
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920847283.1U Expired - Fee Related CN210543446U (en) | 2019-06-06 | 2019-06-06 | Device for recycling steam in methanation reaction system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210543446U (en) |
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2019
- 2019-06-06 CN CN201920847283.1U patent/CN210543446U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200519 |
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| CF01 | Termination of patent right due to non-payment of annual fee |