CN212799639U - A water stable system for sulphuric acid production - Google Patents
A water stable system for sulphuric acid production Download PDFInfo
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- CN212799639U CN212799639U CN202021660614.XU CN202021660614U CN212799639U CN 212799639 U CN212799639 U CN 212799639U CN 202021660614 U CN202021660614 U CN 202021660614U CN 212799639 U CN212799639 U CN 212799639U
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- water
- acid production
- sulfuric acid
- sulphuric acid
- circulating water
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Abstract
The utility model relates to a water stabilization system for sulphuric acid production, including sulphuric acid circulating water pond, sulphuric acid circulating water pond passes through pipe connection to circulating water pump, the pipe connection of the exit end of circulating water pump is to emergent water replenishing valve, the pipeline of emergent water replenishing valve exit end is connected with purifier, dry suction device, tail gas desulphurization unit, the water supply pipe who needs cooling water equipment respectively, all be provided with on purifier, dry suction device, tail gas desulphurization unit, the outside water supply pipe who needs cooling water equipment and supply water shut-off valve. When the external water source system stops water for a short time due to a fault, the stability of the sulfuric acid production system can be maintained within a certain time through the water stabilizing system, the fault parking frequency of the sulfuric acid production system is reduced, the safety of each device of the sulfuric acid production system can be ensured, and abnormal accidents can be avoided.
Description
Technical Field
The utility model belongs to the technical field of sulphuric acid production, concretely relates to water stabilization system for sulphuric acid production.
Background
The method for preparing acid from flue gas is a mode of absorbing and recycling SO2 gas in the flue gas, and during normal production, each process of sulfuric acid production needs to be supplemented with water continuously, wherein the concentration of washing acid, the concentration of harmful impurities in the washing acid and the liquid level of each tank need to be maintained in the purification process; the dry absorption process needs water supplement, and the stability of the concentration of the dry acid and the absorption acid in the dry absorption process is maintained; thirdly, water is required to be supplemented in the tail gas desulfurization process to maintain the stability of the liquid level of the desulfurization tower; and fourthly, cooling sealing water needs to be introduced into each running device such as a circulating pump to ensure the stable running of the device.
Therefore, the stability of the external water supply system must be ensured in the sulfuric acid production process, when the external water supply system fails, the sulfuric acid production system is easy to stop due to the failure, the safety of each device of the sulfuric acid production system is difficult to ensure, and abnormal accidents are easy to occur.
Disclosure of Invention
In order to solve the problem, the utility model provides a water stable system for sulphuric acid production, when can break down in outside water supply system, through above-mentioned water stable system's use, can maintain the stability of sulphuric acid production system in the certain time to reduce the sulphuric acid system trouble that arouses because of the interim trouble of outside water supply network and stop.
The technical scheme of the utility model is as follows
The utility model provides a water stabilization system for sulphuric acid production, includes sulphuric acid circulating water pond, sulphuric acid circulating water pond passes through pipe connection to circulating water pump, the pipe connection of the exit end of circulating water pump is to emergent water replenishing valve, the pipeline of emergent water replenishing valve exit end respectively with purifier, dry suction device, tail gas desulphurization unit, need the cooling water equipment, be provided with the feed water valve on purifier, the external water supply pipeline of dry suction device, tail gas desulphurization unit, need the cooling water equipment. The equipment needing cooling water is operating equipment needing cooling water.
Preferably, the circulating water pump is additionally led out of a pipeline and is connected to a sulfuric acid circulating water tank through a heat exchanger.
Preferably, the purification device, the dry absorption device, the tail gas desulfurization device and an external water supply pipeline of equipment needing cooling water are all provided with a water supply cut-off valve.
The utility model has the advantages that: when the external water source system stops water for a short time due to fault, the stability of the sulfuric acid production system can be maintained within a certain time through the stabilizing system, the fault parking frequency of the sulfuric acid production system is reduced, the safety of each device of the sulfuric acid production system can be ensured, and abnormal accidents can be avoided.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention.
Detailed Description
The embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
As shown in fig. 1, a water stabilization system for sulfuric acid production comprises a sulfuric acid circulating water tank, a purification device, a dry absorption device, a tail gas desulfurization device and equipment needing cooling water, which are connected by pipelines; a branch pipe with an emergency water replenishing valve is arranged on an outlet pipeline of the circulating water pump and connected to a purifying device, a dry absorption device, a tail gas desulfurizing device and equipment needing cooling water, a water supply cut-off valve is arranged on an external water supply pipeline of the purifying device, the dry absorption device, the tail gas desulfurizing device and the equipment needing cooling water, a circulating water pump is connected between the emergency water replenishing valve and a sulfuric acid circulating water tank, and the circulating water pump is led out of a pipeline and returns to the sulfuric acid circulating water tank through a heat exchanger.
As an embodiment of the present invention, the purification device comprises one or more flue gas purification devices.
As an embodiment of the utility model, the dry absorption device comprises a drying tower and a multistage absorption tower.
As an embodiment of the utility model, the tail gas desulphurization unit includes absorption tower and spray set.
When the external water supply network of the purifying device, the dry absorption device, the tail gas desulfurizing device and the equipment needing cooling water breaks down and stops supplying water or the water pressure is insufficient, the emergency water supply valve is opened to supply emergency water to the water supply network of each equipment, and the water supply cut-off valve of the original water supply network is closed at the same time.
At the moment, the circulating cooling water pipe network in the system is communicated with the external water supply pipe network of each process, so that the water is supplemented for each process by adopting the circulating water system in the system. Because the inherent water quantity of the sulfuric acid circulating water tank is far larger than the water requirement of the process production of each procedure per hour, the water supply of each procedure of the sulfuric acid production system can be maintained for a long time.
When the external water supply system breaks down, the stability of the sulfuric acid production system can be maintained within a certain time by using the water stabilizing system, so that the fault shutdown of the sulfuric acid system caused by the temporary fault of the external water supply network is reduced.
Finally, it should be noted that: the above-mentioned embodiments are only specific embodiments of the present invention, and are not intended to limit the technical solution of the present invention, and the protection scope of the present invention is not limited thereto, although the present invention is described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: those skilled in the art can still modify or easily conceive of changes in the technical solutions described in the foregoing embodiments or make equivalent substitutions for some technical features within the technical scope of the present disclosure; such modifications, changes or substitutions do not depart from the spirit and scope of the present invention. Are all covered by the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (3)
1. The utility model provides a water stabilization system for sulphuric acid production, its characterized in that, includes sulphuric acid circulating water pond, sulphuric acid circulating water pond passes through pipe connection to circulating water pump, the pipe connection of circulating water pump's exit end to emergent water replenishing valve, the pipeline of emergent water replenishing valve exit end is connected with purifier, dry suction device, tail gas desulphurization unit, the water supply pipe that needs cooling water equipment respectively.
2. The water stabilization system for sulfuric acid production according to claim 1, wherein the circulating water pump is additionally piped and connected to a sulfuric acid circulating water tank via a heat exchanger.
3. The water stabilizing system for sulfuric acid production according to claim 1, wherein the purification device, the dry absorption device, the tail gas desulfurization device and the external water supply pipeline of the equipment needing cooling water are all provided with a water supply cut-off valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021660614.XU CN212799639U (en) | 2020-08-11 | 2020-08-11 | A water stable system for sulphuric acid production |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021660614.XU CN212799639U (en) | 2020-08-11 | 2020-08-11 | A water stable system for sulphuric acid production |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212799639U true CN212799639U (en) | 2021-03-26 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021660614.XU Active CN212799639U (en) | 2020-08-11 | 2020-08-11 | A water stable system for sulphuric acid production |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212799639U (en) |
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2020
- 2020-08-11 CN CN202021660614.XU patent/CN212799639U/en active Active
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