CN206176890U - Compression air separation device in low energy consumption - Google Patents
Compression air separation device in low energy consumption Download PDFInfo
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- CN206176890U CN206176890U CN201620904821.2U CN201620904821U CN206176890U CN 206176890 U CN206176890 U CN 206176890U CN 201620904821 U CN201620904821 U CN 201620904821U CN 206176890 U CN206176890 U CN 206176890U
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Abstract
The utility model provides a compression air separation device in low energy consumption, it is mainly by self -cleaning air filter, the air compressor machine, molecular sieve purifier, the heat exchanger, cryogenic rectification column and connecting tube are constituteed, be provided with raw materials air suction mouth before the self -cleaning air filter, self -cleaning air filter meets in air compressor machine and air cooling tower at the back, the back of air cooling tower meets and has molecular sieve purifier, it has two way air connection to meet at the back at molecular sieve purifier, and all the way air connection connects and continues pressure boost, another way air connection lug connection in plate heat exchanger in air booster to the air to the lower column of connecting cryogenic rectification column after meeting out plate heat exchanger, cryogenic rectification column's lower column top is provided with pressure nitrogen gas and connects the exit tube, and this pressure nitrogen gas connects out the union coupling behind plate heat exchanger, connects through this plate heat exchanger and holds in the quick -witted pressure boost of a nitrogen expansion, from this pressure boost end relinking plate heat exchanger, therefrom connects in nitrogen expansion quick -witted expansion end after the indirect play, connects once more in plate heat exchanger after this expansion end connects out to insert the pipe and press nitrogen gas behind the body of the cold flow through this plate heat exchanger heat transfer runner, it have the energy consumption low, energy -conserving, enlarge characteristics that emission reduction effect is good.
Description
Technical field
The utility model is related to compression air separation device in a kind of low energy consumption, it is adaptable to the separation of air, belongs to cryogenic air separation
Technical field.
Background technology
Current world economy is developed rapidly with scientific and technological progress, and all trades and professions are big steel, big all to maximization equipment Development
Chemical fertilizer, big petrochemical industry, big chemical fibre, big ethene, big aromatic hydrocarbons, greatly great oil refining, generating work, big electronics, big note nitrogen oil recovery, big coal gas
Change, big Coal Chemical Industry etc., they are required for large-scale, ultra-large type air separation plant to service for it；Such Large Air Separation Devices
Device can only be certainly that Deep Cooling Method continues to monopolize the world, and all commonly use the dress of the Internal-compression flow space division with supercharger
Put.Interior compression is to use pump pressure contracting cryogenic liquid liquid oxygen or liquid nitrogen, then is delivered to outside device Jing after re-heat, gasification, comparatively oxygen
Interior compression is safer, and especially the high pressure in maximization equipment field, big flow advantage are more prominent.
Air separation industry belongs to highly energy-consuming trade, and space division factory belongs to big power consumer, and the raw material of air separation plant is air, and it is mainly consumed
Be the energy, energy resource consumption accounts for production cost.With the constantly improve of market economy, the energy efficiency of air separation plant is more next
More it is taken seriously；Reduce production cost major measure be exactly reducing energy consumption, it is energy-saving be enterprise security environmental protection, increase the benefit,
The importance invigorated.
The content of the invention
The purpose of this utility model is to overcome the shortcomings of that prior art is present, and offer one kind can be in like products parameter
Decline the comprehensive specific energy consumption of low latitude subset, reduce production cost, energy-conservation, reduction of discharging, environment protecting are good, can effectively improve life
Produce efficiency and economic benefit, compression air separation device and flow process in low energy consumption.
The purpose of this utility model by following technical solution completing, compression air separation device in a kind of low energy consumption,
It is mainly by self-cleaning air filter, air compressor machine, molecular sieve purifier, heat exchanger, low-temperature fractionating tower and connecting pipe group
Into, raw air suction inlet is provided with before the self-cleaning air filter, pneumatics is connected on behind self-cleaning air filter
Machine and air cooling tower, behind the air cooling tower molecular sieve purifier is connected to；
Two-way air connecting tube is connected to behind molecular sieve purifier, all the way air connecting tube is connected to air booster
Air is continued to be pressurized, another road air connecting tube is directly connected in plate type heat exchanger, and connects after plate type heat exchanger is picked out
The lower tower of low-temperature fractionating tower；Described air booster picks out rear bifurcated and goes out two pipelines, a pipeline connecting plate type heat exchanger,
And the expanding end of booster expansion turbine is connected to after picking out from the middle part of plate type heat exchanger, it is directly connected to low temperature after the expanding end
The lower tower of rectifying column；Another pipeline connects the pressurized end of booster expansion turbine, and in the pressurized end pipeline connecting plate is passed behind
Formula heat exchanger, picks out the lower tower for connecting low-temperature fractionating tower after plate type heat exchanger after a choke valve；
Described low-temperature fractionating tower is made up of the main condenser evaporimeter of Shang Ta and lower tower and centre, is respectively provided with Xia Ta
Pipe, pure liquid nitrogen pick out pipe and liquid nitrogen fraction picks out pipe to have liquid air to pick out, and the liquid air picks out pipe, pure liquid nitrogen and picks out manages and liquid nitrogen fraction connects
Outlet pipe is in the outer upper tower that low-temperature fractionating tower is connected to after a subcooler of tower, and the bottom of towe in upper tower is provided with liquid oxygen and picks out
Pipe, plate type heat exchanger is accessed Jing after liquid oxygen pump, to be picked out access after plate type heat exchanger oxygen hose net or separately pick out liquid oxygen and is in charge of, and is passed through
Connect liquid oxygen storage tank after subcooler；
The lower top of tower of the low-temperature fractionating tower is provided with pressure nitrogen gas and picks out pipe, and the pressure nitrogen gas pick out pipe and are connected to plate
After formula heat exchanger, the pressurized end of a nitrogen expansion machine is connected to through the plate type heat exchanger, from the pressurized end board-like changing is reconnected
Hot device, therefrom between pick out after be connected to the expanding end of nitrogen expansion machine, the expanding end is re-connected to plate type heat exchanger after picking out,
And access tube presses nitrogen after cold flow body heat exchange runner through the plate type heat exchanger, to space division offer cold.
As preferred：The pressurized end of the nitrogen expansion machine is tapped out and be pressurized all the way nitrogen pipeline, the supercharging nitrogen tube
Road is used as output pressure nitrogen product output pipe；
The lower top of tower of low-temperature fractionating tower is provided with liquid nitrogen and picks out pipe, through connecting subcooler liquid nitrogen product storage is connected to
Groove；
Argon fraction extraction opening is provided with the middle part of the upper tower of low-temperature fractionating tower, the argon fraction extraction opening accesses thick by pipe
Argon column, is provided with thick liquid argon extraction opening on crude argon column, the thick liquid argon extraction opening is connected in succession pure argon column middle part by pipe, and pure
The tower bottom of argon column is provided with pure liquid argon and picks out pipeline.
The upper tower top of low-temperature fractionating tower is provided with dirty nitrogen and picks out pipe, after connection subcooler and plate type heat exchanger
It is divided into two-way, a pipeline is connected to the heater of molecular sieve purifier, and another road connects water-cooling tower；
The upper top of tower of low-temperature fractionating tower is provided with normal pressure nitrogen extraction opening, takes over cooler in succession through pipe and board-like changes
Pick out after hot device to reserved nitrogen product pipeline, or connection user's Nitrogen pipe network, or connection water-cooling tower.
The utility model is a kind of space division new technological process, and this flow process removes air expander system, while extracting pressure from lower tower
Power nitrogen sends into nitrogen expansion supercharger Jing after heat exchanger re-heat and provides space division institute chilling requirement；Simultaneously 8 kilograms or so can be provided
Nitrogen is used for downstream；Major advantage is the production potential that make use of rectifying column, effectively reduces energy consumption, compares conventional space division,
Energy consumption saves 5%-10%.More rich product structure is provided simultaneously, reduces the device configuration in downstream.
The utility model has low energy consumption, energy-conservation, synergy, the characteristics of emission reduction effect is good；Air separation plant can be efficiently reduced
Overall investment, improve production efficiency reduces production cost, effectively raises economic benefit, is conducive to environmental protection.
Description of the drawings
Fig. 1 is structure composition schematic flow sheet of the present utility model.
Specific embodiment
The utility model is described in detail below in conjunction with accompanying drawing：Shown in Fig. 1, one kind described in the utility model is low
Compression air separation device in energy consumption, it is mainly by self-cleaning air filter 1, air compressor machine 2, molecular sieve purifier 3, plate type heat exchanger
4, low-temperature fractionating tower 5 and connecting pipe are constituted, and raw air suction inlet 6 is provided with before the self-cleaning air filter 1, from
Clean formula air cleaner 1 is connected on air compressor machine 2 and air cooling tower 7 below, and behind the air cooling tower 7 molecular sieve purifier is connected to
3；
Raw air is sucked from suction inlet 6, and Jing self-cleaning air filters 1 are except dust and other mechanical admixtures.Filter
Air afterwards enters centrifugal air compressor 2, and the cooling cleaning of air cooling compressor 7 is entered Jing after compressor 2 compresses；Jing air cooling towers 7 are cold
But the air after enters the molecular sieve purifier 3 that switching is used, and the carbon dioxide, acetylene and moisture in air is adsorbed；Molecule
Sieve purifier 3 is used for two switchings, wherein during a job, another regeneration.
Two-way air connecting tube is connected to behind molecular sieve purifier 3, all the way air connecting tube 8 is connected to supercharging air
Machine 9 continues to be pressurized to air, and another road air connecting tube 10 is directly connected in plate type heat exchanger 4, and is picking out plate type heat exchanger 4
Connect the lower tower 51 of low-temperature fractionating tower 5 afterwards；Described air booster 9 picks out rear bifurcated and goes out two pipelines, and a pipeline 11 connects
Connect plate type heat exchanger 4, and the expanding end 12 of booster expansion turbine is connected to after picking out from the middle part of plate type heat exchanger 4, this is swollen
The lower tower 51 of low-temperature fractionating tower 5 is directly connected to behind swollen end 12；Another pipeline 13 connects the pressurized end 14 of booster expansion turbine,
The pressurized end 14 passes behind pipeline connecting plate type heat exchanger 4, to pick out and connect low temperature after a choke valve after plate type heat exchanger 4
The lower tower 51 of rectifying column 5；
Described low-temperature fractionating tower 5 is made up of the main condenser evaporimeter 53 of upper tower 52 and lower tower 51 and centre, in Xia Ta
51 are respectively arranged with liquid air picks out that pipe 15, pure liquid nitrogen pick out pipe 16 and liquid nitrogen fraction picks out pipe 17, and the liquid air picks out pipe 15, pure liquid
Nitrogen picks out pipe 16 and liquid nitrogen fraction picks out pipe 17 in the outer upper tower 52 that low-temperature fractionating tower 5 is connected to after a subcooler 18 of tower, and
The bottom of towe of upper tower 52 is provided with liquid oxygen and picks out pipe 19, plate type heat exchanger 4 is accessed Jing after liquid oxygen pump 20, pick out plate type heat exchanger 4
Oxygen hose net 21 being accessed afterwards or liquid oxygen is separately picked out and being in charge of, liquid oxygen storage tank is connected after subcooler；
The top of lower tower 51 of the low-temperature fractionating tower 5 is provided with pressure nitrogen gas and picks out pipe 22, and the pressure nitrogen gas pick out pipe 22
After being connected to plate type heat exchanger 4, the pressurized end 23 of a nitrogen expansion machine is connected to through the plate type heat exchanger 4, from the pressurized end
23 reconnect plate type heat exchangers 4, therefrom between pick out after be connected to the expanding end 24 of nitrogen expansion machine, the expanding end 24 pick out after again
It is secondary to be connected to plate type heat exchanger 4, and through the plate type heat exchanger 4, provide the cold flow body heat exchange runner of cold to space division after
Access tube presses nitrogen net.
The pressurized end 23 of nitrogen expansion machine described in the utility model is tapped out supercharging nitrogen pipeline 25 all the way, the pressurized nitrogen
Air pipe 25 is used as output pressure nitrogen product output pipe；
The top of lower tower 51 of low-temperature fractionating tower 5 is provided with liquid nitrogen and picks out pipe 26, through connecting subcooler 18 liquid is connected to
Nitrogen product storage tank；
The middle part of upper tower 52 of low-temperature fractionating tower 5 is provided with argon fraction extraction opening 27, the argon fraction extraction opening 27 is by pipe
Crude argon column 28 is accessed, thick liquid argon extraction opening 29 is provided with crude argon column 28, the thick liquid argon extraction opening 29 is connected in succession by pipe
The middle part of pure argon column 30, and the tower bottom in pure argon column 30 is provided with pure liquid argon and picks out pipeline 31.
The top of upper tower 52 of low-temperature fractionating tower 5 is provided with dirty nitrogen and picks out pipe 32, through connecting subcooler 18 and board-like
It is divided into two-way after heat exchanger 4,33 is connected to the heater of molecular sieve purifier 3, the connection of another road 34 air cooling tower 7 all the way；
The top of upper tower 52 of low-temperature fractionating tower 5 is provided with normal pressure nitrogen extraction opening, through pipe cooler and plate are taken in succession
Pick out after formula heat exchanger to reserved nitrogen product pipeline, or connection user's Nitrogen pipe network, or connection air cooling tower 7.
The course of work of the present utility model is：The air being pressurized by supercharger is divided into two parts after being cooled, and a part is entered
Enter and extract the expanding end of feeding booster expansion turbine out from middle part after heat exchanger heat exchange, lower tower is sent into after expansion；Another part enters
The pressurized end for entering booster expansion turbine continues to be pressurized, and the heat exchange of board-like and high pressure liquid oxygen, the height after heat exchange are entered after cooling down again
Lower tower is sent into after hydraulic fluid sky warp knuckle stream valve throttling.
After the preliminary rectifying of air tower under, liquid air, pure liquid nitrogen and liquid nitrogen fraction are obtained, and throttling is entered after cooler supercooling
Upper tower.Jing after the further rectifying of upper tower, liquid oxygen is obtained in upper tower bottom, Jing after liquid oxygen pump compression plate type heat exchanger, re-heat are entered
Cooling box afterwards, into oxygen pipe network.Another extraction send into liquid oxygen storage tank as liquid oxygen product after the supercooling of part liquid oxygen.
Liquid nitrogen is extracted out from lower top of tower, storage tank is entered as product after cooler supercooling.
The pressure nitrogen gas that lower top of tower is extracted out are divided into two parts, a part of cooling box Jing after plate type heat exchanger re-heat, then
The supercharging of nitrogen expansion machine pressurized end is sent into, 8 kilograms is obtained and is obtained nitrogen, its small portion can be sent as product, and major part is sent into
Plate type heat exchanger be cooled to after low temperature enter nitrogen expansion squeeze expanding end expansion, obtain low-temperature atmosphere-pressure gas gives as cold flow body
After entering plate type heat exchanger re-heat, as normal pressure nitrogen product, user's Nitrogen pipe network is sent to when required, it is not necessary to when be sent to water
Cold tower.Another part is sent as 4 kilograms of nitrogen products.
Dirty nitrogen is drawn from upper tower top be divided into two parts after cooler, plate type heat exchanger re-heat cooling box：A part
Into the heater of molecular sieve system, used as regenerating molecular sieve gas, remaining dirty nitrogen removes water-cooling tower.
Normal pressure nitrogen is extracted out from upper top of tower, through cooler, plate type heat exchanger re-heat cooling box as reserved nitrogen product,
Be sent to user's Nitrogen pipe network when required, it is not necessary to when be sent to water-cooling tower.
A certain amount of argon fraction is extracted in the middle part of upper tower and sends into crude argon column, crude argon column is divided in structure two sections, second segment
The withdrawing fluid of crude argon tower bottom sends into first paragraph top Jing after liquid argon pump pressurization as phegma；Argon fraction Jing crude argon column rectifying
After obtain thick liquid argon, and send into pure argon column middle part, obtain pure liquid argon in tower bottom Jing after pure argon column rectifying.
Claims (2)
1. compression air separation device in a kind of low energy consumption, it mainly by self-cleaning air filter, air compressor machine, molecular sieve purifier,
Heat exchanger, low-temperature fractionating tower and connecting pipe are constituted, and raw air suction inlet is provided with before the self-cleaning air filter,
Air compressor machine and air cooling tower are connected on behind self-cleaning air filter, behind the air cooling tower molecular sieve purifier is connected to；
Two-way air connecting tube is connected to behind molecular sieve purifier, all the way air connecting tube is connected to air booster to sky
Gas continues to be pressurized, and another road air connecting tube is directly connected in plate type heat exchanger, and connects low temperature after plate type heat exchanger is picked out
The lower tower of rectifying column；Described air booster picks out rear bifurcated and goes out two pipelines, a pipeline connecting plate type heat exchanger, and from
The expanding end of booster expansion turbine is connected to after picking out in the middle part of plate type heat exchanger, after the expanding end cryogenic rectification is directly connected to
The lower tower of tower；Another pipeline connects the pressurized end of booster expansion turbine, passes behind pipeline connecting plate type in the pressurized end and changes
Hot device, picks out the lower tower for connecting low-temperature fractionating tower after plate type heat exchanger after a choke valve；
Described low-temperature fractionating tower is made up of the main condenser evaporimeter of Shang Ta and lower tower and centre, and in Xia Ta liquid is respectively arranged with
Sky picks out that pipe, pure liquid nitrogen pick out pipe and liquid nitrogen fraction picks out pipe, and the liquid air picks out pipe, pure liquid nitrogen and picks out manages and liquid nitrogen fraction picks out pipe
In the outer upper tower that low-temperature fractionating tower is connected to after a subcooler of tower, and the bottom of towe in upper tower is provided with liquid oxygen and picks out pipe, Jing
Plate type heat exchanger is accessed after liquid oxygen pump, to be picked out access after plate type heat exchanger oxygen hose net or separately pick out liquid oxygen and is in charge of, through supercooling
Connect liquid oxygen storage tank after device；
It is characterized in that the lower top of tower of the low-temperature fractionating tower is provided with pressure nitrogen gas picks out pipe, the pressure nitrogen gas pick out Guan Lian
After being connected to plate type heat exchanger, the pressurized end of a nitrogen expansion machine is connected to through the plate type heat exchanger, is reconnected from the pressurized end
Plate type heat exchanger, therefrom between pick out after be connected to the expanding end of nitrogen expansion machine, the expanding end is re-connected to board-like after picking out
Heat exchanger, and the access tube pressure nitrogen after cold flow body heat exchange runner through the plate type heat exchanger, to space division offer cold.
2. compression air separation device in low energy consumption according to claim 1, it is characterised in that the supercharging of the nitrogen expansion machine
End is tapped out and be pressurized all the way nitrogen pipeline, and the supercharging nitrogen pipeline is used as output pressure nitrogen product output pipe；
The lower top of tower of low-temperature fractionating tower is provided with liquid nitrogen and picks out pipe, through connecting subcooler liquid nitrogen product storage tank is connected to；
Argon fraction extraction opening is provided with the middle part of the upper tower of low-temperature fractionating tower, the argon fraction extraction opening is by pipe access crude argon
Tower, is provided with thick liquid argon extraction opening on crude argon column, the thick liquid argon extraction opening is connected in succession pure argon column middle part by pipe, and in straight argon
The tower bottom of tower is provided with pure liquid argon and picks out pipeline, the upper tower top of low-temperature fractionating tower is provided with dirty nitrogen and picks out pipe, passes through
It is divided into two-way after connection subcooler and plate type heat exchanger, a pipeline is connected to the heater of molecular sieve purifier, another road connection
Water-cooling tower；
The upper top of tower of low-temperature fractionating tower is provided with normal pressure nitrogen extraction opening, through pipe cooler and plate type heat exchanger are taken in succession
After pick out to reserved nitrogen product pipeline, or connection user's Nitrogen pipe network, or connection water-cooling tower.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620904821.2U CN206176890U (en) | 2016-08-19 | 2016-08-19 | Compression air separation device in low energy consumption |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620904821.2U CN206176890U (en) | 2016-08-19 | 2016-08-19 | Compression air separation device in low energy consumption |
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| CN206176890U true CN206176890U (en) | 2017-05-17 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106440659A (en) * | 2016-08-19 | 2017-02-22 | 浙江智海化工设备工程有限公司 | Low energy consumption inner compression air separation device |
| CN108240734A (en) * | 2018-03-08 | 2018-07-03 | 李佳晨 | Booster expansion machine air supply system and air separation plant |
| CN108759308A (en) * | 2018-06-23 | 2018-11-06 | 浙江智海化工设备工程有限公司 | A kind of skid-mounted type Internal-compression flow air separation plant |
| CN109323534A (en) * | 2018-11-06 | 2019-02-12 | 杭州杭氧股份有限公司 | It is a kind of that high pressure oxygen method and device is produced by cryogenic rectification method purification air |
-
2016
- 2016-08-19 CN CN201620904821.2U patent/CN206176890U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106440659A (en) * | 2016-08-19 | 2017-02-22 | 浙江智海化工设备工程有限公司 | Low energy consumption inner compression air separation device |
| CN108240734A (en) * | 2018-03-08 | 2018-07-03 | 李佳晨 | Booster expansion machine air supply system and air separation plant |
| CN108240734B (en) * | 2018-03-08 | 2024-03-26 | 李佳晨 | Air supply system of booster expander and air separation equipment |
| CN108759308A (en) * | 2018-06-23 | 2018-11-06 | 浙江智海化工设备工程有限公司 | A kind of skid-mounted type Internal-compression flow air separation plant |
| CN109323534A (en) * | 2018-11-06 | 2019-02-12 | 杭州杭氧股份有限公司 | It is a kind of that high pressure oxygen method and device is produced by cryogenic rectification method purification air |
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