CN217556131U - Heat energy recovery device of slag water system - Google Patents
Heat energy recovery device of slag water system Download PDFInfo
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- CN217556131U CN217556131U CN202123009303.4U CN202123009303U CN217556131U CN 217556131 U CN217556131 U CN 217556131U CN 202123009303 U CN202123009303 U CN 202123009303U CN 217556131 U CN217556131 U CN 217556131U
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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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
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Abstract
The utility model belongs to the technical field of synthetic ammonia production facility, especially, sediment water system heat recovery unit. The utility model discloses a deoxidization basin, deoxidization basin pass through the blow-down pipeline and are connected with accident torch, install circulating water cooler on the blow-down pipeline, and the deoxidization basin is pressure vessel. The utility model can ensure the grey water temperature of the high pressure grey water heat exchanger to be maintained at 126 ℃, thereby improving the water-steam ratio of the gasification furnace; the utility model can collect the heat of the low-pressure flash steam, thereby greatly reducing the heat discharge of the system; at the same time, the dissolved NH in the steam is reduced 3 、H 2 S and other gases escape, so that the corrosion to peripheral pipelines is reduced, and the environmental pollution is reduced.
Description
Technical Field
The utility model belongs to the technical field of synthetic ammonia production facility, especially, relate to a sediment water system heat recovery unit.
Background
In the Texaco coal water slurry gasification, the slag water treatment section mainly has the function of separating solid and dissolved gas in black water discharged from the gasification section through flash evaporation and sedimentation. The water vapor flashed out from the high-pressure flash tank contains a large amount of fine ash, so that the high-pressure grey water heat exchanger is easily blocked, after each overhaul cleaning, the outlet water temperature of the heat exchanger is 150 ℃, the operation is about one month later, and the outlet water temperature of the heat exchanger is reduced to 110 ℃, so that the heat exchange effect is greatly reduced, the preset effect cannot be achieved, the gas-water ratio of the synthesis gas at the outlet of the carbon washing tower is reduced, and the conversion efficiency of a conversion working section is influenced; meanwhile, all the low-pressure flash steam is sent to the deoxidizing water tank to be deoxidized, and the heat can not be effectively utilized, so that the emptying capacity of the deoxidizing water tank reaches about fifteen tons per hour, thereby not only causing waste, but also influencing the field production environment.
SUMMERY OF THE UTILITY MODEL
In order to overcome the defects in the prior art, the utility model provides a heat energy recovery device of a slag water system. The utility model discloses can continuously guarantee the grey water temperature of heat exchanger and effectively utilize heat energy.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides a sediment water system heat recovery unit, includes the deoxidization basin, and the deoxidization basin passes through the air release pipeline and is connected with accident torch, installs circulating water cooler on the air release pipeline, and the deoxidization basin is pressure vessel.
Preferably, the circulating water cooler is connected to the emergency flare via a knockout drum.
Preferably, the air outlet end of the separation tank is provided with a pressure regulating valve.
Preferably, the liquid outlet of the separating tank is connected with the liquid inlet of a drainage pipeline, and a liquid level regulating valve is installed on the drainage pipeline.
Preferably, the liquid outlet of the drainage pipeline is connected with the liquid inlet of the grey water tank.
Preferably, the pressure vessel is a pressure vessel with a working pressure of 0.15 MPa.
The utility model has the advantages that:
(1) The utility model can ensure the grey water temperature of the high-pressure grey water heat exchanger to be kept at 126 ℃, thereby improving the water-vapor ratio of the gasification furnace; the utility model can collect the heat of the low-pressure flash steam, thereby greatly reducing the heat discharge of the system; at the same time reduce steamingDissolved NH in steam 3 、H 2 S and other gases escape, so that the corrosion to peripheral pipelines is reduced, and the environmental pollution is reduced. Meanwhile, the process flow is simple, easy to operate and stable to control; the used equipment is few and simple, and the investment cost is low.
(2) The utility model discloses a heat of sediment water system obtains the at utmost utilization, has increased the steam ratio of gasifier, has improved the efficiency of shift reaction, can produce good economic benefits and environmental protection benefit.
Drawings
FIG. 1 is a production process diagram of the present invention.
Fig. 2 is a schematic view of the present invention.
FIG. 3 is a diagram of the original production process.
The notations in the figures have the following meanings:
1-deoxygenation water tank, 2-circulating water cooler, 3-separation tank, 4-accident torch, 5-ash water tank, 6-pressure regulating valve and 7-liquid level regulating valve.
Detailed Description
As shown in figure 1-2, a slag-water system heat recovery device, including deoxidization basin 1, deoxidization basin 1 is connected with accident torch 4 through the air release pipeline, install circulating water cooler 2 on the air release pipeline, deoxidization basin 1 is pressure vessel, pressure vessel's operating pressure is 0.15MPa, original ordinary pressure container has been replaced, after deoxidization basin 1 pressure improved, the grey water temperature in deoxidization basin 1 rose, make the heat of system obtain the recovery of maximum, avoided original unnecessary flash distillation gas directly to let in accident torch 4 and let out air.
Specifically, the circulating water cooler 2 is connected with the separation tank 3, the gas outlet end of the separation tank 3 is connected with the accident torch 4 through a pipeline, so that the non-condensable gas after heat exchange is led to the accident torch 4 conveniently, and the gas outlet end of the separation tank 3 is provided with a pressure regulating valve 6 which can control the pressure of the gas entering the accident torch 4; the liquid outlet of knockout drum 3 is connected with drain line's inlet, and drain line's liquid outlet is connected with grey basin 5's inlet, and the condensate after the heat transfer of being convenient for inserts drain line and delivers to grey basin 5 recycle, installs liquid level control valve 7 on the drain line, is convenient for adjust grey basin 5's liquid level flow.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and should not be taken as limiting the invention, and all modifications, equivalents, improvements and the like that are made within the spirit and principles of the present invention should be included in the scope of the present invention.
Claims (5)
1. The utility model provides a sediment water system heat recovery unit, includes deoxidization basin (1), its characterized in that, deoxidization basin (1) is connected with accident torch (4) through the air release pipeline, install circulating water cooler (2) on the air release pipeline, deoxidization basin (1) is 0.15 MPa's pressure vessel for operating pressure.
2. The slag water system heat energy recovery device of claim 1, wherein: the circulating water cooler (2) is connected with the accident torch (4) through the separating tank (3).
3. The slag water system heat energy recovery device of claim 2, wherein: and a pressure regulating valve (6) is installed at the air outlet end of the separation tank (3).
4. The slag water system heat energy recovery device of claim 2, wherein: the liquid outlet of knockout drum (3) is connected with drain line's inlet, install liquid level control valve (7) on the drain line.
5. The slag water system heat energy recovery device of claim 4, wherein: the liquid outlet of the drainage pipeline is connected with the liquid inlet of the grey water tank (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123009303.4U CN217556131U (en) | 2021-12-01 | 2021-12-01 | Heat energy recovery device of slag water system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123009303.4U CN217556131U (en) | 2021-12-01 | 2021-12-01 | Heat energy recovery device of slag water system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217556131U true CN217556131U (en) | 2022-10-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123009303.4U Active CN217556131U (en) | 2021-12-01 | 2021-12-01 | Heat energy recovery device of slag water system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217556131U (en) |
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2021
- 2021-12-01 CN CN202123009303.4U patent/CN217556131U/en active Active
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