CN205731282U - A kind of molecular sieve system of air separation plant - Google Patents
A kind of molecular sieve system of air separation plant Download PDFInfo
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- CN205731282U CN205731282U CN201620451597.6U CN201620451597U CN205731282U CN 205731282 U CN205731282 U CN 205731282U CN 201620451597 U CN201620451597 U CN 201620451597U CN 205731282 U CN205731282 U CN 205731282U
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Abstract
The molecular sieve system of a kind of air separation plant, it is mainly connected composition by molecular sieve, electric heater, stop valve and pipeline, is serially connected with a steam heater, and connects dirty nitrogen by configuring corresponding valve before described electric heater；Described electric heater is left and right two electric heater to be formed by valve connecing, and dirty nitrogen is connected on steam heater by pipeline and at least three valve connection in series-parallel, and by the electric heater described in the connection of this steam heater；When system is run, dirty nitrogen first heats through electric heater after steam heater preheats again；Meanwhile, arranging a roadside in steam heater side and lead to, when damage occurs in steam heater, be turned off, open bypass valve, directly heat with electric heater, the flow process i.e. recovered to transformation is operated.
Description
Technical field
The utility model relates to a kind of molecular sieve system of air separation equipment, belong to technical field of heat exchange equipment.
Background technology
Traditional air separation plant is mainly based on electric heater, as shown in Figure 1, but electric heater institute subfam. Spiraeoideae is the biggest, along with the energy is more and more in short supply, country's attention to energy-saving and emission-reduction work, in the input of air separation plant, as long as there is the place of steam condition, substituting electric heater with steam heater just becomes an inexorable trend.
Summary of the invention
The purpose of this utility model is the deficiency overcoming prior art to exist, and provides a kind of and energy-conservation substantially can be substantially reduced system operation cost, simple, less investment, return height, the molecular sieve system of air separation equipment of energy-saving consumption-reducing.
The purpose of this utility model completes by following technical solution, a kind of molecular sieve system of air separation plant, it is mainly by molecular sieve, electric heater, stop valve and pipeline connect composition, it is serially connected with a steam heater before described electric heater, and connects dirty nitrogen by configuring corresponding valve.
As preferably: described electric heater is left and right two electric heater to be formed by valve connecing, and dirty nitrogen is connected on steam heater by pipeline and at least three valve connection in series-parallel, and by the electric heater described in the connection of this steam heater.
This utility model is exactly to putting into operation and using the air separation plant of electric heater to transform, steel mill is utilized to have more than needed saturated vapor, a steam heater is concatenated before electric heater, heat through electric heater again after dirt nitrogen is preheated, when the system is operated, by newly-increased equipment---steam heater puts into together, makes dirty nitrogen be heated by former electric heater after preheating again, to reach saves energy consumption, the purpose of energy-saving and emission-reduction.
This utility model compared with prior art, need to increase a steam heater and supporting valve, pipeline etc. newly.After transformation, energy-conservation substantially can be substantially reduced system operation cost, simple, less investment, return height, is that air separation plant reduces operating cost, the effective technical scheme of energy-saving consumption-reducing.
Accompanying drawing explanation
Fig. 1 is original system schematic flow sheet.
Fig. 2 is system flow schematic diagram of the present utility model.
Detailed description of the invention
Being described in detail this utility model below in conjunction with accompanying drawing: shown in Fig. 2, molecular sieve system of air separation equipment described in the utility model, it includes molecular sieve 3,4；Electric heater 1,2；Steam heater 6；Acoustic filter 5；Stop valve V1-V17 and pipeline composition.It is serially connected with a steam heater 6 before described electric heater 1,2, and connects dirty nitrogen by configuring corresponding valve V15, V16, V17.
Described electric heater 1,2 is formed by valve connecing for left and right two electric heater, and dirty nitrogen is connected on steam heater by pipeline and at least three valve V15, V16, V17 connection in series-parallel, and connects described electric heater 1,2 by this steam heater 6.
This utility model is one steam heater 6 of series connection on the dirty nitrogen pipeline before former electric heater 1,2, and when system is run, dirty nitrogen first heats through electric heater 1,2 after steam heater 6 preheats again；Meanwhile, one roadside is set in steam heater 6 side and leads to and be equipped with bypath valve V15, by V15 and V16, the switching open and close of V17, can realize whether steam heater 6 is incorporated to system operation.
Fig. 2 show an embodiment of the present utility model, improved flow process is: concatenate a steam heater 6 before former electric heater 1,2, when system is run, open valve V16, V17, close valve V15, utilize steel mill's part residue steam (steam pressure about 0.4mpa), dirt nitrogen is first heated through steam heater, temperature after heating is about 120 DEG C, then heats through electric heater, then molecular sieve is carried out desorption and regeneration.
When damage (as leakage failure occurs) occurs in steam heater, it need to be overhauled, valve V16, V17 can be closed, opening valve V15, now, steam heater 6 does not works, directly heating with electric heater 1,2, system is i.e. recovered to the flow process before transforming to be operated.
As a example by the air separation plant of a set of " 20,005 " grade, often set electric heater capacity is 1500kw, utilize the residue steam source of steel mill about 0.4mpa, connecting a steam heater, power is 900kw, and dirty nitrogen is after steam heater heats, outlet temperature can reach 120 DEG C, being heated through electric heater by the dirty nitrogen of 120 DEG C, electric heater capacity only needs 500kw, and power consumption has obtained greatly declining again.
Claims (2)
1. the molecular sieve system of an air separation plant, it is mainly by molecular sieve, electric heater, stop valve and pipeline connect composition, it is characterized in that described electric heater (1,2) is front and be serially connected with a steam heater (6), and connect dirty nitrogen by configuring corresponding valve (V15, V16, V17).
The molecular sieve system of air separation plant the most according to claim 1, it is characterized in that described electric heater (1,2) is left and right two electric heater and is formed by valve connecing, dirty nitrogen is connected on steam heater by pipeline and the connection in series-parallel of at least three valves (V15, V16, V17), and by the electric heater (1,2) described in this steam heater (6) connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620451597.6U CN205731282U (en) | 2016-05-18 | 2016-05-18 | A kind of molecular sieve system of air separation plant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620451597.6U CN205731282U (en) | 2016-05-18 | 2016-05-18 | A kind of molecular sieve system of air separation plant |
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| Publication Number | Publication Date |
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| CN205731282U true CN205731282U (en) | 2016-11-30 |
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| CN201620451597.6U Active CN205731282U (en) | 2016-05-18 | 2016-05-18 | A kind of molecular sieve system of air separation plant |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106823681A (en) * | 2017-04-28 | 2017-06-13 | 孔祥旭 | A kind of sieve purification system |
| CN109420405A (en) * | 2017-08-31 | 2019-03-05 | 山西通才工贸有限公司 | A kind of space division purification system and method with stepwise adsorption regeneration techniques |
| CN110327906A (en) * | 2019-08-12 | 2019-10-15 | 芜湖新兴铸管有限责任公司 | Utilize afterheat steam and/or the device of electric heating dirt nitrogen activation molecular sieve |
-
2016
- 2016-05-18 CN CN201620451597.6U patent/CN205731282U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106823681A (en) * | 2017-04-28 | 2017-06-13 | 孔祥旭 | A kind of sieve purification system |
| CN109420405A (en) * | 2017-08-31 | 2019-03-05 | 山西通才工贸有限公司 | A kind of space division purification system and method with stepwise adsorption regeneration techniques |
| CN110327906A (en) * | 2019-08-12 | 2019-10-15 | 芜湖新兴铸管有限责任公司 | Utilize afterheat steam and/or the device of electric heating dirt nitrogen activation molecular sieve |
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