CN205747682U - A kind of energy-saving steam heater system for air separation unit - Google Patents
A kind of energy-saving steam heater system for air separation unit Download PDFInfo
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- CN205747682U CN205747682U CN201620603727.3U CN201620603727U CN205747682U CN 205747682 U CN205747682 U CN 205747682U CN 201620603727 U CN201620603727 U CN 201620603727U CN 205747682 U CN205747682 U CN 205747682U
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- shell
- dirty nitrogen
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- heat exchanger
- steam
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Abstract
A kind of energy-saving steam heater system for air separation unit, it includes a supporting regeneration steam heater in space division molecular sieve system, described regeneration steam heater is a vertical, tube side is passed through steam, shell side is passed through the shell-and-tube heat exchanger from fractionating column dirt nitrogen, its middle and upper part is passed through steam inlet and connects steam pipe, bottom connects outlet pipe by condensing water out, lower sides at shell-and-tube heat exchanger connects dirty nitrogen inlet by dirty nitrogen inlet, and connect dirty nitrogen in upper portion side wall by dirty nitrogen outlet and go out pipe, and gone out pipe by this dirt nitrogen and be connected to space division molecular sieve system；Dirty nitrogen inlet on the sidewall of the same side and between dirty nitrogen outlet in shell side at least provided with one piece of half side dividing plate being positioned at the same side, form two flow process shell sides；Or dirty nitrogen inlet and dirty nitrogen outlet are arranged on shell-and-tube heat exchanger opposite side, shell side are provided with above dirty nitrogen inlet one piece of half side dividing plate, and are also equipped with one piece of half side dividing plate in the lower section shell side of dirty nitrogen outlet, form three flow process shell sides；The features such as it has rational in infrastructure, easy to use, and reliability is high, good energy-conserving effect.
Description
Technical field
The utility model relates to a kind of energy-saving steam heater system for air separation unit, especially a kind of suitable
For the regeneration steam heater system of molecular sieve system, belong to air separation unit technique field.
Background technology
Air separation unit reliable and stable, again energy-saving run it is critical that, and steam heater be space division dress
A highstrung equipment in putting, although it is inexpensive, but once goes wrong, and whole air separation unit is necessary for stopping, and
For space division supporting to Coal Chemical Industry, steam heater is more crucial, once goes wrong, and its impact is very big, and loss is the most very
?.
The most depressed at current steel industry, profit keeps falling, Ge great steel mill all occur reducing the staff tide when, energy-conservation
Consumption reduction is that the energy consumption costs such as the life line that each gas runs company's existence, the especially electricity charge account for production cost about 80%
Gas run company, reliability and energy-saving and cost-reducing had increased to unprecedented critical role, for catering to country's promotion
Energy-saving and emission-reduction, the policy of environmental protection, widely popularize application new technique the most urgent.
Summary of the invention
The purpose of this utility model is the deficiency overcoming prior art to exist, and provides a kind of rational in infrastructure, user
Just, reliability is high, the energy-saving steam heater system for air separation unit of good energy-conserving effect.
The purpose of this utility model completes by following technical solution, a kind of energy-saving steaming for air separation unit
Vapour heater system, it includes a supporting regeneration steam heater in space division molecular sieve system, described regeneration steam
Heater be a vertical, tube side is passed through in steam, shell side and is passed through the shell-and-tube heat exchanger from fractionating column dirt nitrogen,
Its middle and upper part is passed through steam inlet and connects steam pipe, and bottom connects outlet pipe by condensing water out, at shell-and-tube heat exchanger
Lower sides connects dirty nitrogen inlet by dirty nitrogen inlet, and connects dirty nitrogen in upper portion side wall by dirty nitrogen outlet and go out
Pipe, and gone out pipe by this dirt nitrogen and be connected to space division molecular sieve system.
As preferably: described shell-and-tube heat exchanger uses two-tube strip tube side and the structure of shell side separate space, pipe and tube sheet
Between take to rise to connect and add manual welding technique；The dirty nitrogen inlet offered on the sidewall of described shell-and-tube heat exchanger and dirty nitrogen go out
Mouth is arranged on the same side, and at least provided with one in shell side between dirty nitrogen inlet and the dirty nitrogen outlet on the sidewall of the same side
Block is positioned at the half side dividing plate of the same side, forms two flow process shell sides.
As preferably: described shell-and-tube heat exchanger uses two-tube strip tube side and the structure of shell side separate space, pipe and tube sheet
Between take to rise to connect and add manual welding technique；The dirty nitrogen inlet offered on the sidewall of described shell-and-tube heat exchanger and dirty nitrogen go out
Mouth is arranged on opposite side, is provided with one piece of half side dividing plate, and goes out at dirty nitrogen above described dirty nitrogen inlet in shell side
The lower section shell side of mouth is also equipped with one piece of half side dividing plate, forms three flow process shell sides.
As preferably: the upper and lower side of described shell-and-tube heat exchanger is respectively arranged with air inlet end socket and goes out fluid-tight head, and is entering
Sealing gland head and go out to offer respectively on fluid-tight head steam inlet and condense water out；Described air inlet end socket faces steam
Import is provided with upper tube box, and is going out fluid-tight head and be provided above being formed the liquid storage cylinder of tube side liquid level.
As preferably: the dirty nitrogen outlet warm end temperature difference of described shell-and-tube heat exchanger at 5-7 DEG C, wherein said shell-type heat exchange
In device, the resistance of two flow process shell sides is at 1kpa, three flow process shell sides resistance at 2kpa；Under tube side in described shell heat exchanger
End condensing water temperature is at 75-85 DEG C.
The features such as this utility model has rational in infrastructure, easy to use, and reliability is high, good energy-conserving effect.
Accompanying drawing explanation
Fig. 1 is the energy-saving steam heater structure schematic diagram of two flow process shell sides described in the utility model.
Fig. 2 is the energy-saving steam heater structure schematic diagram of three flow process shell sides described in the utility model.
Fig. 3 is this utility model energy-saving steam heater system PID figure.
Detailed description of the invention
Below in conjunction with accompanying drawing, this utility model should be used as specific embodiment introduction: shown in Fig. 1-3, this practicality is new
A kind of energy-saving steam heater system for air separation unit described in type, it includes that one is supporting for space division molecular sieve system
In regeneration steam heater, described regeneration steam heater be a vertical, tube side is passed through in steam, shell side logical
Entering the shell-and-tube heat exchanger from fractionating column dirt nitrogen, its middle and upper part is passed through the steam inlet 1 of steam and connects steam pipe 2, bottom
Connecting outlet pipe 4 by condensing water out 3, the lower sides at shell-and-tube heat exchanger connects dirty nitrogen by dirty nitrogen inlet 5
Inlet pipe 6, and connect dirty nitrogen in upper portion side wall by dirty nitrogen outlet 7 and go out pipe 8, and gone out pipe 8 by this dirt nitrogen and be connected to space division
Molecular sieve system.
Shown in Fig. 1, described shell-and-tube heat exchanger uses two-tube strip tube side and the structure of shell side separate space, between pipe and tube sheet
Taking rises connects and adds manual welding technique；Dirty nitrogen inlet 5 and the dirty nitrogen offered on the sidewall of described shell-and-tube heat exchanger go out
Mouthfuls 7 are arranged on the same side, and between dirty nitrogen inlet 5 and the dirty nitrogen outlet 7 on the sidewall of the same side in shell side at least provided with
There is one piece of half side dividing plate 9 being positioned at the same side, form two flow process shell sides.
Shown in Fig. 2, described shell-and-tube heat exchanger uses two-tube strip tube side and the structure of shell side separate space, between pipe and tube sheet
Taking rises connects and adds manual welding technique；Dirty nitrogen inlet 5 and the dirty nitrogen offered on the sidewall of described shell-and-tube heat exchanger go out
Mouth 7 is arranged on opposite side, is provided with one piece of half side dividing plate 10 above described dirty nitrogen inlet 5 in shell side, and at dirty nitrogen
The lower section shell side of gas outlet 7 is also equipped with the half side dividing plate of another block 11, and forms three flow process shell sides.
The upper and lower side of shell-and-tube heat exchanger described in the utility model is respectively arranged with air inlet end socket 12 and goes out fluid-tight 13, and
At air inlet end socket 12 with go out to offer respectively in fluid-tight 13 steam inlet 1 and condense water out 3；At described air inlet end socket 12
On face steam inlet and be provided with upper tube box 14, the most referred to as position steam distributor, and be provided above energy going out fluid-tight 13
Form the liquid storage cylinder of tube side liquid level.
The dirty nitrogen outlet warm end temperature difference of shell-and-tube heat exchanger described in the utility model is at 5-7 DEG C, and wherein said shell-type changes
In hot device, the resistance of two flow process shell sides is at 1kpa, three flow process shell sides resistance at 2kpa；Tube side in described shell heat exchanger
Lower end condensing water temperature is at 75-85 DEG C.
Embodiment: Fig. 1, shown in 2, steam enters steam distributor from top, after tube bank heat exchange, the condensed water of 80 degree
Discharged by bottom.Dirty nitrogen enters and hot water heat exchange from following sidepiece, by sending after intermediate membrane and upper steam heat exchange.
Shown in Fig. 3: field condition steam pressure PI1 under normal circumstances is 0.8Mpa (G), temperature TI1 is 176 DEG C, steam
Import caliber is DN125, and the design discharge of dirty nitrogen is 28160Nm3/h, and the inlet temperature of dirty nitrogen is 20 DEG C, and outlet temperature TI7 is
168 DEG C, the import caliber DN700 of dirty nitrogen, the outlet caliber DN800 of dirty nitrogen, dirty nitrogen resistance is at about 2Kpa (energy-saving steam
Heater uses three flow processs).Energy-saving steam heater is have subscribed according to this parameter.Equipment has been shown up after installation, adjusts
Examination, drives dampness present in shell side away, can start to debug steam heater after outlet dew point reaches requirement.First it is passed through dirt
Nitrogen, dirty nitrogen goes out steam heater valve and closes before opening V11 valve, is then slowly passed through steam from steam heater top, builds
Vertical steam heater inside liquid level, treats that liquid level sets up more than 2m, puts into temperature TIC2(setting value 80 DEG C) and Liquid level
LIC1(setting value 3m), determine V12 valve opening by low choosing, analyze dirty nitrogen moisture content of outlet content with dew point analysis instrument, treat water
Dividing dew point AIT1 to drop to less than-70 DEG C, outlet temperature TI7 of the most dirty nitrogen reaches more than 168 DEG C, it is possible to molecular sieve system
Open dirty nitrogen.
Actual motion a period of time, optimizing operation, reduction condensate drain temperature is to realize maximum energy-saving effect as far as possible, runs now
Situation be: warm end temperature difference (be i.e. TI1 deduct TI7 difference) only 4 DEG C (because heat exchange area has surplus), condensate drain temperature TIC2
Can be set to 55 DEG C (because heat exchange area has surplus), resistance is at about 2Kpa. 13654.0324 degree of electricity of power consumption every day before transformation,
The electricity charge 8192 yuan, after having transformed, every day, steam consumption quantity was at 17.2 tons, and steam takes: 2577 yuan, every day saves energy consumption cost: 5615
Unit, calculates according to work every year, can save and can expend: 202.1 ten thousand yuan for 360 days, and whole energy-saving steaming heater system equipment is thrown
Rate about 1,100,000 yuan, are recoverable to investment within 7 months.
Claims (5)
1., for an energy-saving steam heater system for air separation unit, it includes that one is supporting in space division molecular sieve system
Regeneration steam heater, it is characterised in that described regeneration steam heater be a vertical, tube side is passed through steam,
Being passed through the shell-and-tube heat exchanger from fractionating column dirt nitrogen in shell side, its middle and upper part is passed through steam inlet and connects steam pipe, bottom
Connecting outlet pipe by condensing water out, the lower sides at shell-and-tube heat exchanger connects dirty nitrogen by dirty nitrogen inlet and enters
Pipe, and connect dirty nitrogen in upper portion side wall by dirty nitrogen outlet and go out to manage, and gone out pipe by this dirt nitrogen and be connected to space division molecular sieve
System.
Energy-saving steam heater system for air separation unit the most according to claim 1, it is characterised in that described
Shell-and-tube heat exchanger uses two-tube strip tube side and the structure of shell side separate space, takes to rise to connect add manual welding work between pipe and tube sheet
Skill；The dirty nitrogen inlet offered on the sidewall of described shell-and-tube heat exchanger and dirty nitrogen outlet are arranged on the same side, and same
Dirty nitrogen inlet on the sidewall of side and between dirty nitrogen outlet in shell side at least provided with one piece of half side dividing plate being positioned at the same side,
Form two flow process shell sides.
Energy-saving steam heater system for air separation unit the most according to claim 1, it is characterised in that described
Shell-and-tube heat exchanger uses two-tube strip tube side and the structure of shell side separate space, takes to rise to connect add manual welding work between pipe and tube sheet
Skill；The dirty nitrogen inlet offered on the sidewall of described shell-and-tube heat exchanger and dirty nitrogen outlet are arranged on opposite side, described
The top shell side of dirty nitrogen inlet is provided with one piece of half side dividing plate, and is also equipped with one in the lower section shell side of dirty nitrogen outlet
The half side dividing plate of block, forms three flow process shell sides.
4. according to the energy-saving steam heater system for air separation unit described in Claims 2 or 3, it is characterised in that described
The upper and lower side of shell-and-tube heat exchanger is respectively arranged with air inlet end socket and goes out fluid-tight head, and distinguishes on fluid-tight head with going out at air inlet end socket
Offer steam inlet and condense water out；Described air inlet end socket faces steam inlet and is provided with upper tube box, and
Go out fluid-tight head and be provided above being formed the liquid storage cylinder of tube side liquid level.
Energy-saving steam heater system for air separation unit the most according to claim 4, it is characterised in that described pipe
The dirty nitrogen outlet warm end temperature difference of shell heat exchanger is at 5-7 DEG C, and in wherein said shell heat exchanger, the resistance of two flow process shell sides exists
1kpa, the resistance of three flow process shell sides is at 2kpa；Tube side lower end condensing water temperature in described shell heat exchanger at 75-85 DEG C, this
A little performance parameters are that the water temperature by the condensed water liquid level in tube side and liquid storage cylinder is come real by the aperture of low selected control condensate drain valve
Existing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620603727.3U CN205747682U (en) | 2016-06-20 | 2016-06-20 | A kind of energy-saving steam heater system for air separation unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620603727.3U CN205747682U (en) | 2016-06-20 | 2016-06-20 | A kind of energy-saving steam heater system for air separation unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205747682U true CN205747682U (en) | 2016-11-30 |
Family
ID=57387163
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620603727.3U Expired - Fee Related CN205747682U (en) | 2016-06-20 | 2016-06-20 | A kind of energy-saving steam heater system for air separation unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205747682U (en) |
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2016
- 2016-06-20 CN CN201620603727.3U patent/CN205747682U/en not_active Expired - Fee Related
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161130 Termination date: 20190620 |