CN210710749U - S03Device for recovering waste heat of absorbing sulfuric acid - Google Patents
S03Device for recovering waste heat of absorbing sulfuric acid Download PDFInfo
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- CN210710749U CN210710749U CN201921637957.1U CN201921637957U CN210710749U CN 210710749 U CN210710749 U CN 210710749U CN 201921637957 U CN201921637957 U CN 201921637957U CN 210710749 U CN210710749 U CN 210710749U
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- reaction tower
- sulfuric acid
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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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- 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
- Y02P20/129—Energy recovery, e.g. by cogeneration, H2recovery or pressure recovery turbines
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- Treating Waste Gases (AREA)
Abstract
The utility model discloses a S03Absorb sour waste heat recovery's of system device belongs to the chemical plant field. The device comprises a reaction tower, a high-temperature acid pump, a low-pressure boiler, a mixer and a high-temperature acid pump groove, wherein an output end at the bottom of the reaction tower sequentially passes through the high-temperature acid pump groove, the high-temperature acid pump is connected with the low-pressure boiler, one output pipeline of the low-pressure boiler is connected with the upper part of the reaction tower, and the other output pipeline is connected with the outside; and a mixer is arranged at the bottom of the reaction tower. Through the utility model discloses the device retrieves SO3The heat generated by the reaction with water,the low-pressure steam of 0.8 plus or minus 0.4MPa (g) is generated, 0.4 plus or minus 0.1 ton of low-pressure steam can be generated for each ton of sulfuric acid, and the high-temperature sulfuric acid sent by the waste heat recovery system can also heat other media to recover more heat.
Description
Technical Field
The utility model relates to a chemical industry field, concretely relates to SO3A device for recovering the waste heat of sulfuric acid production by absorption.
Background
At present, domestic SO3The absorption acid making adopts sulfuric acid with the concentration of 93-98 percent at the temperature of less than 100 ℃ to absorb SO in the process gas3After the concentration of the sulfuric acid is increased, water is directly added for dilution, and then the sulfuric acid is circularly absorbed, and the absorbed reaction heat is generally cooled by circulating water and finally dissipated in the atmosphere. And the recycling acid can not be recycled due to low temperature.
SUMMERY OF THE UTILITY MODEL
The utility model provides a SO to the technical problem that above-mentioned exists3A device for recovering the waste heat of sulfuric acid production by absorption.
SO (SO)3The device for absorbing the recovery of the waste heat in the sulfuric acid production comprises a reaction tower, a high-temperature acid pump, a low-pressure boiler, a mixer and a high-temperature acid pump groove, wherein an output end at the bottom of the reaction tower sequentially passes through the high-temperature acid pump groove, the high-temperature acid pump is connected with the low-pressure boiler, one output pipeline of the low-pressure boiler is connected with the upper part of the reaction tower, and the other output pipeline is connected with the outside; and a mixer is arranged at the bottom of the reaction tower.
The utility model discloses among the technical scheme: the low-pressure boiler is also provided with a low-pressure feed water input pipeline and a low-pressure steam output pipeline respectively.
A method for realizing sulfuric acid waste heat recovery by utilizing the device comprises the steps of feeding steam or water into a reaction tower, regulating the acid concentration of acid discharged from the tower to be 99.1 +/-0.2%, boosting the pressure of the acid by a high-temperature acid pump after passing through a high-temperature acid pump tank, feeding the acid into a low-pressure boiler to generate low-pressure steam of 0.8 +/-0.4 MPa (g), and returning 85 +/-10% of high-concentration acid output by the low-pressure boiler to the reaction tower for circularly absorbing SO3The rest high concentrated acid is sent out
The utility model has the advantages that:
through the utility model discloses the device retrieves SO3The heat generated by the reaction with water generates low-pressure steam of 0.8 plus or minus 0.4MPa (g), and can generate 0.4 plus or minus 0.1 ton of low-pressure steam per ton of sulfuric acid, and the high-temperature sulfuric acid sent by the waste heat recovery system can also heat other media to recover more heat.
Drawings
FIG. 1 shows the SO of the present invention3Absorbing residual heat of sulfuric acid productionSchematic diagram of the recycling device.
Wherein: 1 is a reaction tower, 2 is a high-temperature acid pump, 3 is a low-pressure boiler, 4 is a mixer, and 5 is a high-temperature acid pump tank.
Detailed Description
The invention is further illustrated by the following examples, without limiting the scope of the invention:
the technical solution explained in conjunction with fig. 1 is as follows:
SO (SO)3The device for recovering the waste heat generated in the sulfuric acid production by absorption comprises a reaction tower (1), a high-temperature acid pump (2), a low-pressure boiler (3), a mixer (4) and a high-temperature acid pump tank (5), wherein the output end of the bottom of the reaction tower (1) sequentially passes through the high-temperature acid pump tank (5), the high-temperature acid pump (2) is connected with the low-pressure boiler (3), one output pipeline of the low-pressure boiler (3) is connected with the upper part of the reaction tower (1), and the other output pipeline is connected with the outside; and a mixer (4) is arranged at the bottom of the reaction tower (1). The low-pressure boiler (3) is also provided with a low-pressure feed water input pipeline and a low-pressure steam output pipeline respectively.
A method for realizing waste heat recovery by using the device specifically comprises the following steps:
the mixer 4 of the waste heat recovery device is arranged in the reaction tower 1, steam or water is sent into the reaction tower to adjust the acid concentration of the acid discharged from the tower to 99.1 +/-0.2 percent, the pressure of the acid is increased by a high-temperature acid pump 2 and then the acid is sent into a low-pressure boiler to generate low-pressure steam of 0.8 +/-0.4 MPa (g), and then the steam returns to the reaction tower 1 to circularly absorb SO3. The technical proposal can generate 0.4 +/-0.1 ton of low-pressure steam when producing 1 ton of sulfuric acid.
Claims (2)
1. S03The device for recovering the waste heat of the sulfuric acid production by absorption is characterized in that: the device comprises a reaction tower (1), a high-temperature acid pump (2), a low-pressure boiler (3), a mixer (4) and a high-temperature acid pump tank (5), wherein the output end of the bottom of the reaction tower (1) sequentially passes through the high-temperature acid pump tank (5), the high-temperature acid pump (2) is connected with the low-pressure boiler (3), one output pipeline of the low-pressure boiler (3) is connected with the upper part of the reaction tower (1), and the other output pipeline is connected with the outside; and a mixer (4) is arranged at the bottom of the reaction tower (1).
2. S0 according to claim 13The device for recovering the waste heat of the sulfuric acid production by absorption is characterized in that: the low-pressure boiler (3) is also provided with a low-pressure feed water input pipeline and a low-pressure steam output pipeline respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921637957.1U CN210710749U (en) | 2019-09-27 | 2019-09-27 | S03Device for recovering waste heat of absorbing sulfuric acid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921637957.1U CN210710749U (en) | 2019-09-27 | 2019-09-27 | S03Device for recovering waste heat of absorbing sulfuric acid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210710749U true CN210710749U (en) | 2020-06-09 |
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ID=70965785
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921637957.1U Active CN210710749U (en) | 2019-09-27 | 2019-09-27 | S03Device for recovering waste heat of absorbing sulfuric acid |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210710749U (en) |
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2019
- 2019-09-27 CN CN201921637957.1U patent/CN210710749U/en active Active
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