CN211688268U - A deoxidization system for industry nitric acid production line - Google Patents
A deoxidization system for industry nitric acid production line Download PDFInfo
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- CN211688268U CN211688268U CN201922374498.9U CN201922374498U CN211688268U CN 211688268 U CN211688268 U CN 211688268U CN 201922374498 U CN201922374498 U CN 201922374498U CN 211688268 U CN211688268 U CN 211688268U
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- desalination water
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Abstract
A deoxygenation system for an industrial nitric acid production line comprises a degassing membrane, a hydrogenation membrane, a vacuum pump, a hydrogen production device, a resin tank and a desalination water tank, wherein a desalination water station is connected to the liquid inlet end of the degassing membrane, the liquid outlet end of the degassing membrane is connected to the liquid inlet end of the hydrogenation membrane, the liquid outlet end of the hydrogenation membrane is connected to the desalination water tank through the resin tank, the desalination water tank is connected to an economizer, and the economizer is connected with a nitrogen oxidation furnace; and redox resin is filled in the resin tank, the ventilation end of the degassing mold is connected with the air suction port of the vacuum pump, and the ventilation end of the hydrogenation membrane is connected with the hydrogen production device. The oxygen removal effect is high, and the electrolyte is not carried by chemical oxygen removal; the oxygen removal is carried out without consuming steam, the output quantity of externally supplied steam can be increased, and the normal operation of production is facilitated; the method produces the deoxygenated water at normal temperature, is favorable for reducing the temperature of process gas, the heat exchange load of equipment and the corrosion degree of the equipment.
Description
Technical Field
The utility model relates to the technical field of, concretely relates to deoxidization system for industry nitric acid production line.
Background
N produced by nitrogen oxidation furnace in the process of producing industrial nitric acid by pressurization methodxThe O process gas needs to be heat exchanged with desalted water in an economizer to utilize NxThe waste heat of the O process gas is subjected to heat exchange to generate self-generated steam. The deoxygenated water needs to be deoxygenated in a deoxygenation tank before use. At present, the thermal deoxidization is generally carried out by introducing self-heating steam into a deoxidization tank, and the rest self-heating steam is externally supplied to a high tower for supplying heat in the process of producing the nitro-compound fertilizer.
In high temperature season in summer, because of the economizer from the steam production volume reduction, steam output volume reduces thereupon, if adopt the deoxidization effect of heating power deoxidization mode to guarantee the deoxidization groove completely, then can appear supplying the needs that steam can't guarantee high tower high load production outward, high tower forced load reduction operation, the productivity of every hour receives certain influence. If the hot steam supplied from the outside is preferably ensured, the heat exchange effect is reduced, the temperature of the condensed acid is increased, and the corrosion to the equipment is increased. In addition, the use of hot steam for oxygen removal is costly and carries electrolyte for desalinating water.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to provide a deoxidization system for industry nitric acid production line to replace the hot steam that produces by the economic ware to carry out the heating power deoxidization to the desalination, reduce the deoxidization cost simultaneously.
The utility model provides a technical scheme that technical problem adopted is: a deoxygenation system for an industrial nitric acid production line comprises a degassing membrane, a hydrogenation membrane, a vacuum pump, a hydrogen production device, a resin tank and a desalination water tank, wherein a desalination water station is connected to the liquid inlet end of the degassing membrane, the liquid outlet end of the degassing membrane is connected to the liquid inlet end of the hydrogenation membrane, the liquid outlet end of the hydrogenation membrane is connected to the desalination water tank through the resin tank, the desalination water tank is connected to an economizer, and the economizer is connected with a nitrogen oxidation furnace; and redox resin is filled in the resin tank, the ventilation end of the degassing mold is connected with the air suction port of the vacuum pump, and the ventilation end of the hydrogenation membrane is connected with the hydrogen production device.
The utility model has the beneficial technical effects that: the oxygen removing system of the utility model has high oxygen removing effect, and can not carry electrolyte through chemical oxygen removing; the oxygen removal is carried out without consuming steam, the output quantity of externally supplied steam can be increased, and the normal operation of production is facilitated; the method produces the deoxygenated water at normal temperature, is favorable for reducing the temperature of process gas, the heat exchange load of equipment and the corrosion degree of the equipment.
Drawings
FIG. 1 is a schematic structural diagram of an oxygen removal system for an industrial nitric acid production line according to a preferred embodiment of the present invention;
Detailed Description
The technical solution of the present invention will be clearly and completely described with reference to the accompanying drawings. In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not 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 a 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.
Please refer to fig. 1.
The utility model discloses a deoxidization system includes degassing membrane, hydrogenation membrane, vacuum pump, hydrogen plant, resin tank and desalination basin. The desalting water station is connected to the liquid inlet end of the degassing mold, the liquid outlet end of the degassing mold is connected to the liquid inlet end of the hydrogenation membrane, the liquid outlet end of the hydrogenation membrane is connected to the desalting water tank through the resin tank, the desalting water tank is connected to an economizer, and the economizer is connected with a nitrogen oxidation furnace; the ventilation end of the degassing module is connected with the air suction port of the vacuum pump, and the ventilation end of the hydrogenation membrane is connected with the hydrogen production device.
The oxygen removing system of the utility model has high oxygen removing effect (the residual oxygen content can be lower than 0.05mg/L), and can not carry electrolyte through chemical oxygen removing; the oxygen removal is carried out without consuming steam, the output quantity of externally supplied steam can be increased, and the normal operation of production is facilitated; which produces deoxygenated water at ambient temperature, thus N produced by a nitrogen oxidation furnacexThe O process gas can reach lower temperature after heat exchange by the economizer, thereby reducing the heat exchange load of the equipment and the corrosion degree of the equipment.
Other parts not described in detail in the present invention belong to the prior art, and are not described herein again.
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 (1)
1. A deoxygenation system for an industrial nitric acid production line is characterized by comprising a degassing membrane, a hydrogenation membrane, a vacuum pump, a hydrogen production device, a resin tank and a desalination water tank, wherein a desalination water station is connected to a liquid inlet end of the degassing membrane, a liquid outlet end of the degassing membrane is connected to a liquid inlet end of the hydrogenation membrane, a liquid outlet end of the hydrogenation membrane is connected to the desalination water tank through the resin tank, the desalination water tank is connected to an economizer, and the economizer is connected with a nitrogen oxidation furnace; and redox resin is filled in the resin tank, the ventilation end of the degassing mold is connected with the air suction port of the vacuum pump, and the ventilation end of the hydrogenation membrane is connected with the hydrogen production device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922374498.9U CN211688268U (en) | 2019-12-25 | 2019-12-25 | A deoxidization system for industry nitric acid production line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922374498.9U CN211688268U (en) | 2019-12-25 | 2019-12-25 | A deoxidization system for industry nitric acid production line |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211688268U true CN211688268U (en) | 2020-10-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922374498.9U Active CN211688268U (en) | 2019-12-25 | 2019-12-25 | A deoxidization system for industry nitric acid production line |
Country Status (1)
| Country | Link |
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| CN (1) | CN211688268U (en) |
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2019
- 2019-12-25 CN CN201922374498.9U patent/CN211688268U/en active Active
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