CN203803501U - Steam heater for molecular sieve regeneration - Google Patents
Steam heater for molecular sieve regeneration Download PDFInfo
- Publication number
- CN203803501U CN203803501U CN201420036898.3U CN201420036898U CN203803501U CN 203803501 U CN203803501 U CN 203803501U CN 201420036898 U CN201420036898 U CN 201420036898U CN 203803501 U CN203803501 U CN 203803501U
- Authority
- CN
- China
- Prior art keywords
- steam heater
- heat exchanger
- steam
- molecular sieve
- condensed water
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 239000002808 molecular sieve Substances 0.000 title claims abstract description 14
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 title claims abstract description 14
- 230000008929 regeneration Effects 0.000 title abstract description 7
- 238000011069 regeneration method Methods 0.000 title abstract description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 36
- 238000007599 discharging Methods 0.000 claims description 14
- 230000001172 regenerating effect Effects 0.000 claims description 5
- 239000007788 liquid Substances 0.000 abstract description 9
- 230000021715 photosynthesis, light harvesting Effects 0.000 abstract description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 14
- 238000010438 heat treatment Methods 0.000 description 8
- 229910052757 nitrogen Inorganic materials 0.000 description 7
- 238000001704 evaporation Methods 0.000 description 6
- 230000008020 evaporation Effects 0.000 description 6
- 239000007789 gas Substances 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 229920006395 saturated elastomer Polymers 0.000 description 2
- 238000001179 sorption measurement Methods 0.000 description 2
- 239000003463 adsorbent Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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- Drying Of Gases (AREA)
Abstract
The utility model relates to a steam heater for molecular sieve regeneration. The steam heater comprises a housing, a condensed water inlet, a condensed water outlet and at least three groups of heat exchangers, as well as communicating vessels for communicating two adjacent groups of heat exchangers and a liquid discharge pipe arranged below a first communicating vessel, wherein the communicating vessels comprises the first communicating vessel arranged at the bottom of the heat exchangers and a second communicating vessel arranged at the top of the heat exchangers. The steam heater is simple in structure and small in working resistance, can reutilize condensed water produced after the steam releases heat, saves energy, avoids energy dissipation, reduces the heat exchange cost, and can ensure that condensed water can be smoothly discharged safely and reliably under any condition, thereby protecting a molecular sieve from carrying water.
Description
Technical field
The utility model relates to empty point technical field.Particularly, the utility model relates to sieve technology, particularly a kind of steam heater for regenerating molecular sieve.
Background technology
Empty point technology is widely used in the multiple fields such as chemical industry, metallurgy, electronics, Aero-Space, machine-building, biology, medical treatment at present.To the most importantly efficient utilization of molecular sieve of air separation unit long-term safety stable operation, and steam heater to molecular sieve long-acting use play vital effect.
Steam heater effect is with the dirty nitrogen of Steam Heating, and dirty nitrogen is heated to more than 150 DEG C, for the adsorbent in heating adsorption device, makes its regeneration.Steam heater is outside equipped with the vapour liquid separator of horizontal cylinder shape, and by saturated condensate liquid, by after vapor-liquid separation, block steam and drain water, makes saturated condensate return enter the further heat exchange of steam heater.
Steam heater tube side divides left and right two parts, and when heat exchange, regeneration gas elder generation and left side heat exchanger tube heat exchange (inside is condensed water), then with right side heat exchanger tube heat exchange (inside is steam), make regeneration gas be heated to the temperature needing.
But because steam heater is mainly vertical structure, steam heater water side (i.e. left side) exists U-shaped bend pipe, if steam supply discontinuity, bottom condensate water cannot be discharged.If be in northern frore area, once temperature reaches below 0 DEG C, steam heater bottom condensate water can congeal into ice, and volumetric expansion racks heat-exchanging tube bundle, will cause steam heater to leak; Long-term water also easily causes heat exchanger corrosion, makes tube wall attenuation can cause equally leakage.This all can bring irremediable massive losses to molecular sieve system.
Therefore, need a kind of novel steam heater structure, what ensure that it can be safe and reliable under any state discharges condensed water smoothly, thereby protection molecular sieve avoids being with the evil of water.
Utility model content
For above-mentioned technical problem, the utility model provide a kind of can ensure can be safe and reliable under any state condensed water is discharged smoothly, thereby protection molecular sieve is avoided the steam heater of the evil with water.
Above-mentioned purpose of the present utility model is achieved through the following technical solutions: a kind of steam heater for regenerating molecular sieve, this steam heater comprises housing, condensing water inlet, condensation-water drain and at least three group vertical heat exchangers, and described steam heater also comprises:
For the linker that described heat exchanger is connected in series successively, described linker comprises the first linker that is positioned at heat exchanger bottom and the second linker that is positioned at heat exchanger top; And
Be arranged at the discharging tube of described the first linker lower end.
In above-mentioned evaporation heater, the part that described discharging tube is positioned at steam heater inside is tortuous pipeline.
In above-mentioned evaporation heater, the part that described discharging tube is positioned at steam heater inside is horizontal U-shaped curved pipeline.
In above-mentioned evaporation heater, described discharging tube is connected with housing seal.
In above-mentioned evaporation heater, described heat exchanger is pipe heat exchanger.
In above-mentioned evaporation heater, the temperature of described condensation-water drain is 40～60 DEG C.
In above-mentioned evaporation heater, the condensed water that passes into described condensing water inlet is that steam is put thermogenetic condensed water.
Preferably, described steam is the steam of heat exchanger tube inside, above-mentioned steam heater right side.
Except as otherwise noted, in the utility model, in heat exchanger, to identical position, several adjacent pipelines are one " group " to condensation flow.
Except as otherwise noted, in the utility model, described " horizontal U-shaped curved " refers to the shape that two vertical edges of " U " type form while laterally placement, is about to " U " type clockwise or is rotated counterclockwise the shape that 90 degree form.
The inventor finds after by large quantity research, steam heater of the present utility model is when having a rest property comes into operation betwixt, once there is the situation of the too low or steam interrupt delivery of environment temperature, can be safe and reliable carry out discharge opeing by discharging tube, the situation such as prevent to freeze, block up, ensure the safety of heat transmission equipment.
Steam heater of the present utility model includes but not limited at least three group heat exchangers, under the safety of moving at equipment and stable prerequisite, those skilled in the art can determine concrete heat exchanger package number according to the required heating surface area calculating and the size that need to subdue the stress producing because of heat exchange expansion.
The utility model does not limit the concrete pipeline number of every group of heat exchanger, should be appreciated that according to actual condition, everyly can be easy to processing, handling and can realize above-mentioned safe and stable pipeline number and all can be used for the utility model.For example, in the time that heat exchanger is three groups, every group of heat exchanger tube number can be respectively 14,11 and 11.
Preferably, the part that discharging tube can be positioned to steam heater inside is arranged to tortuous for example horizontal U-shaped curved pipeline, and the stress existing to subdue pipeline prevents that stress is excessive and causes pipeline breaking.The packing seal for position (being the position that discharging tube passes housing) that discharging tube can also be contacted with housing, is tightly connected both, and dirty nitrogen overflows from pipeline gap when preventing from heating, causes heat air quantity not sufficient.
Compared with prior art, the utility model at least has following beneficial effect:
1, can ensure can be safe and reliable under any state condensed water is discharged smoothly, thereby protection molecular sieve avoids being with the evil of water;
2, can carry out secondary utilization to the condensed water producing after steam heat release, save and avoided energy dissipation, reduce heat exchange cost;
3, simple in structure, working resistance is little.
Brief description of the drawings
Below, describe by reference to the accompanying drawings embodiment of the present utility model in detail, wherein:
Fig. 1 is the utility model steam heater internal structure schematic diagram.
description of reference numerals:
1 – condensing water inlet, 2,4,5 – heat exchangers, 3 – the second linkers, 6 – the first linkers, 7 – condensation-water drains, 8 – discharging tubes.
Detailed description of the invention
Below in conjunction with accompanying drawing, principle of the present utility model and feature are described, example, only for explaining the utility model, is not intended to limit scope of the present utility model.
embodiment 1
As shown in Figure 1, steam heater of the present utility model comprises that housing is (not shown, this housing is airtight shell), condensing water inlet 1, condensation-water drain 7 and vertical pipe heat exchanger 2,4,5, and for be communicated with heat exchanger 2 and 4 and be arranged at both tops the second linker 3, be communicated with heat exchanger 4 and 5 and be arranged at both bottom the first linker 6 so that heat exchanger is connected in series successively.Described the first linker 6 lower ends are also connected with discharging tube 8, and its part that is positioned at steam heater inside is tortuous for example horizontal U-shaped curved pipeline and is connected with housing seal.
When work, the condensed water producing after steam heat release that comes from obtaining by vapour liquid separator is passed in steam heater by condensing water inlet 1, while just starting to come into operation, must make liquid level be accumulated to 300mm and just can open above condensed water and send control valve outside, vapour liquid separator must be incubated well simultaneously.When operation, must be noted that to keep liquid level, prevent that vapour-liquid from carrying the erosion to steam heater tube sheet secretly.
Heated medium can be the dirty nitrogen obtaining from air separation unit, and this gas heats by steam heater shell side.When heating, the parameter of steam heater can be by arranging shown in table 1.
Table 1 steam heater parameter
| ? | Heated working medium | Heating working medium |
| Working medium | Dirty nitrogen | Condensed water |
| Pass through tolerance | 52500Nm 3/h | 2.1～4.5t/h |
| Pressure MPa(G) | 0.012 | 1.3 |
| Operating pressure MPa(G) | 0.09 | 1.2 |
| Inlet temperature DEG C | 21 | 100～120 |
| Outlet temperature DEG C | ≥80 | 50～60 |
After heating, the temperature of the condensed water that condensation-water drain 7 gives off probably has the temperature drop of 20～40 DEG C, and dirty nitrogen is heated to and is not less than 80 DEG C, pressure is 15KPa(G) left and right is to atmospheric pressure (101KPa left and right).By the regeneration gas that enters heat exchanger (dirty nitrogen) is heated, not only can save the required energy of heating regeneration gas, can also make regenerating molecular sieve thorough, make it again there is good adsorption, for the stable operation of low-temperature heat exchange and rectifying provides condition.
The above is the utility model embodiment, not limits the utility model protection domain with this, all in the utility model spirit, principle, the improvement done, is equal to replacement etc., all should be included in the utility model protection domain.
Claims (5)
1. for a steam heater for regenerating molecular sieve, this steam heater comprises housing, condensing water inlet, condensation-water drain and at least three group vertical heat exchangers, it is characterized in that, described steam heater also comprises:
For the linker that described heat exchanger is connected in series successively, described linker comprises the first linker that is positioned at heat exchanger bottom and the second linker that is positioned at heat exchanger top; And
Be arranged at the discharging tube of described the first linker lower end.
2. steam heater according to claim 1, is characterized in that, the part that described discharging tube is positioned at steam heater inside is tortuous pipeline.
3. steam heater according to claim 1 and 2, is characterized in that, the part that described discharging tube is positioned at steam heater inside is horizontal U-shaped curved pipeline.
4. steam heater according to claim 1 and 2, is characterized in that, described discharging tube is connected with housing seal.
5. steam heater according to claim 1 and 2, is characterized in that, described heat exchanger is pipe heat exchanger.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420036898.3U CN203803501U (en) | 2014-01-21 | 2014-01-21 | Steam heater for molecular sieve regeneration |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420036898.3U CN203803501U (en) | 2014-01-21 | 2014-01-21 | Steam heater for molecular sieve regeneration |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203803501U true CN203803501U (en) | 2014-09-03 |
Family
ID=51442313
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420036898.3U Expired - Fee Related CN203803501U (en) | 2014-01-21 | 2014-01-21 | Steam heater for molecular sieve regeneration |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203803501U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109277093A (en) * | 2018-11-07 | 2019-01-29 | 马鞍山马钢比欧西气体有限责任公司 | Optimization and recovery system of a molecular sieve regeneration gas condensate discharge method |
-
2014
- 2014-01-21 CN CN201420036898.3U patent/CN203803501U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109277093A (en) * | 2018-11-07 | 2019-01-29 | 马鞍山马钢比欧西气体有限责任公司 | Optimization and recovery system of a molecular sieve regeneration gas condensate discharge method |
| CN109277093B (en) * | 2018-11-07 | 2023-10-27 | 马鞍山马钢林德气体有限责任公司 | An optimization and recovery system for the discharge of condensate water from molecular sieve regeneration gas |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140903 Termination date: 20190121 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |