CN206176891U - Air separation device with high pressure heat transfer oxygen suppliment - Google Patents
Air separation device with high pressure heat transfer oxygen suppliment Download PDFInfo
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- CN206176891U CN206176891U CN201621110161.7U CN201621110161U CN206176891U CN 206176891 U CN206176891 U CN 206176891U CN 201621110161 U CN201621110161 U CN 201621110161U CN 206176891 U CN206176891 U CN 206176891U
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- air
- heat exchanger
- tower
- liquid
- high pressure
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Abstract
The utility model provides an air separation device with high pressure heat transfer oxygen suppliment, including double rectification column, main heat exchanger, double rectification column includes the upper column, the lower column with be located condensing evaporator between the two, the lower column lower part even has the air to advance the tower tube way, the upper column top even has nitrogen gas to go out the tower tube way, the air advances the tower tube way and nitrogen gas goes out the tower tube way respectively through main heat exchanger realization heat exchange, condensing evaporator's evaporation side even has liquid oxygen output pipeline, it has high -pressure liquid oxygen pump and high -pressure heat exchanger to link in proper order on the liquid oxygen output pipeline, the air advances tower tube and says to have two parallelly connected branch roads, article one, the branch road is through main heat exchanger, the heat exchange of air and liquid oxygen is realized to another branch road through high -pressure heat exchanger. The utility model provides an air separation device with high pressure heat transfer oxygen suppliment, the liquid oxygen that utilizes the output compress through high -pressure liquid oxygen pump, obtain normal atmospheric temperature high pressure oxygen with advancing tower air exchange through high -pressure heat exchanger, make the tower air to obtain the output that cold volume was retrieved and was stopped low pressure oxygen simultaneously to reach the input of reduction oxygen compressor and the mesh of energy consumption and maintenance cost.
Description
Technical field
The utility model belongs to air separation unit technique field, refers in particular to a kind of air separation unit with high pressure heat exchange oxygen supply.
Background technology
At present, after general oxygen generating plant technique is tower oxygen through board-like re-heat extraction, high pressure oxygen compressor pressure is entered back into
Bottle is filled in contracting（The circuit of the chain lines of accompanying drawing 1）, meeting the increase and decrease of bottle tolerance also needs 1 operative employee's operation startup-shutdown, oxygen compressor
Power consumption and the cost of overhaul are high, and security is low, and equipment adjusts the inferior position such as dumb.
The content of the invention
The purpose of this utility model is to provide a kind of air separation unit with high pressure heat exchange oxygen supply, is passed through using the liquid oxygen of output
High Pressure Liquid Oxygen Pump is compressed, and normal temperature high voltage oxygen is obtained with tower air exchange is entered by high pressure heat exchanger, while making to be obtained into tower air
To cold recovery and stop the output of low oxygen, the input and its energy consumption and maintenance cost of oxygen compressor are reduced to reach
Purpose.
What the purpose of this utility model was realized in：A kind of air separation unit with high pressure heat exchange oxygen supply, including twin-stage
Rectifying column, main heat exchanger, double rectification column include Shang Ta, lower tower and positioned at condenser/evaporator between the two, and Xia Ta bottoms connect
There is air to enter tower tube road, upper top of tower is connected with nitrogen and goes out tower tube road, and air enters tower tube road and nitrogen goes out tower tube road respectively through master
Heat exchanger realizes heat exchange, it is characterised in that：The evaporation side of condenser/evaporator is connected with liquid oxygen output channel, on liquid oxygen output channel
High Pressure Liquid Oxygen Pump and high pressure heat exchanger are sequentially connected with, the air enters tower tube road has two branch roads in parallel, a branch road warp
The main heat exchanger is crossed, another branch road realizes the heat exchange of air and liquid oxygen by the high pressure heat exchanger.
Preferably, the Xia Ta lower ends are connected with liquid air pipeline, and the liquid air pipeline other end is connected to tower top, liquid air pipeline
Liquid air heat exchanger is provided with, the nitrogen goes out tower tube road by liquid air heat exchanger.
Preferably, the condensation side of the condenser/evaporator is connected with liquid nitrogen pipes, and liquid nitrogen pipes are connected by liquid air heat exchanger
Supreme top of tower.
Preferably, it is rectifying section, liquid air pipeline that the upper tower goes out between tower tube pipeline joint and liquid air pipe joint in nitrogen
It is stripping section under interface, rectifying section is connected with dirty nitrogen and goes out tower tube road, dirty nitrogen goes out that tower tube road sequentially passes through liquid air heat exchanger and master changes
Hot device.
Preferably, the high pressure heat exchanger is high pressure wound tube heat exchanger.
The utility model is prominent and beneficial compared to existing technology to be had the technical effect that：
1st, in seventy or eighty kilowatts, just more than ten kilowatts of a power for liquid pump is saved a power for oxygen compressor significantly
Energy consumption is saved, power consumption can save 250KW per hour；
2nd, oxygen liquid and gaseous volume ratio are 1：800 or so, therefore, under same case, when conveying same amount of oxygen,
Compressor needs more number of units, and conveys liquid oxygen, only needs a High Pressure Liquid Oxygen Pump, not only power and energy saving, and reduces
The equipment investment of compressor and corresponding personnel depaly, maintenance amount；Liquid pump can also be by remote control, using more square
Just；
3rd, after the upper tower oxygen of traditional liquid oxygen generating plant technique is extracted out through board-like re-heat, entrance is low oxygen conveying
Pipeline, when oxygen compressor is compressed to low oxygen, easily entrains the foreign gas in the external world；Therefore using the liquid oxygen of high pressure
Output channel, beneficial to raising oxygen purity.
Brief description of the drawings
Fig. 1 is structure principle chart of the present utility model.
Brief description of the drawings：1st, liquid oxygen output channel；2nd, air enters tower tube road；3rd, dirty nitrogen goes out tower tube road；4th, nitrogen goes out tower tube road；
5th, liquid air pipeline；6th, liquid nitrogen pipes；C1, lower tower；C2, upper tower；K, condenser/evaporator；E1, main heat exchanger；E2, liquid air heat exchanger；
E3, high pressure heat exchanger；OP1, High Pressure Liquid Oxygen Pump；OC1, high pressure oxygen compressor.
Specific embodiment
The utility model is further described with specific embodiment below in conjunction with the accompanying drawings, referring to Fig. 1：
A kind of air separation unit with high pressure heat exchange oxygen supply, including double rectification column, main heat exchanger E1, double rectification column bag
Include tower C2, lower tower C1 and positioned at condenser/evaporator K between the two, lower tower C1 bottoms are connected with air and enter tower tube road 2, upper tower C2
Top is connected with nitrogen and goes out tower tube road 4, and air enters tower tube road 2 and nitrogen goes out tower tube road 4 and realizes that heat is handed over respectively through main heat exchanger E1
Change, the evaporation side of condenser/evaporator K is connected with liquid oxygen output channel 1, and High Pressure Liquid Oxygen Pump OP1 is sequentially connected with liquid oxygen output channel 1
With high pressure heat exchanger E3, air enters tower tube road 2 has two branch roads in parallel, and a branch road is by main heat exchanger E1, another
Branch road realizes the heat exchange of air and liquid oxygen through hyperthermia wound tube heat exchanger.
Wherein, lower tower C1 lower ends are connected with liquid air pipeline 5, and the other end of liquid air pipeline 5 is connected to tower C2 tops, liquid air pipeline
5 are provided with liquid air heat exchanger E2, and the nitrogen goes out tower tube road 4 by liquid air heat exchanger E2.
Wherein, the condensation side of condenser/evaporator K is connected with liquid nitrogen pipes 6, and liquid nitrogen pipes 6 are by liquid air heat exchanger E2 and connect
Supreme tower C2 tops.
The specific workflow of this programme is as follows：
1st, air enters the suction of tower tube road 2 air, and two branch roads respectively enter high pressure wound tube heat exchanger and main heat exchanger E1
So that entering tower air obtains cold recovery, preliminary precooling is realized；
2nd, two air passages enter lower tower C1 bottoms after merging, and are condensed into liquid air, are steamed according to air each component
The difference of temperature is sent out, air carries out first time separation, the relatively low nitrogen of boiling point is separated from liquid air in lower tower C1, lower tower
Oxygen-enriched liquid air is formed on C1 bottoms, and gaseous nitrogen atmosphere rises, and liquid nitrogen is formed in the condensation side of condenser/evaporator K；
3rd, the oxygen-enriched liquid air of lower tower C1 bottoms is delivered to upper tower C2 rectifying through liquid air pipeline 5, to obtain pure oxygen and purity nitrogen；On
Tower C2 is divided to for two sections, and with liquid air charging aperture as boundary, top is rectifying section, and rectifying uprising gas reclaims oxygen component, and purification nitrogen is pure
Degree, rectifying section is connected with dirty nitrogen and goes out tower tube road 3；Hypomere is stripping section, improves the oxygen of liquid by the nitrogen Component seperation in liquid out
Purity；
4th, the liquid nitrogen of condenser/evaporator K condensation sides passes to the rectifying section of upper tower C2 by liquid nitrogen pipes 6, further purifies nitrogen
Gas；Nitrogen at the top of upper tower C2 goes out tower tube road 4, dirty nitrogen and goes out tower tube road 3, liquid air pipeline 5, liquid nitrogen pipes 6 all by liquid air heat exchange
Device E2 so that dirty nitrogen and nitrogen obtain cold recovery；
5th, dirty nitrogen go out tower tube road 3, nitrogen go out tower tube road 4 by after liquid air heat exchanger E2 again by main heat exchanger E1, will be cold
Amount transmission feed tower air；
6th, condenser/evaporator K evaporation side liquid oxygen by liquid oxygen output channel 1, High Pressure Liquid Oxygen Pump OP1 by high pressure liquid
Oxygen delivers to high pressure wound tube heat exchanger, enters tower air and liquid oxygen heat exchange, obtains the output of normal temperature high voltage oxygen.
Above-described embodiment is only preferred embodiment of the present utility model, and protection model of the present utility model is not limited according to this
Enclose, therefore：All equivalence changes done according to structure of the present utility model, shape, principle, all should be covered by protection of the present utility model
Within the scope of.
Claims (5)
1. a kind of air separation unit with high pressure heat exchange oxygen supply, including double rectification column, main heat exchanger（E1）, double rectification column bag
Include tower（C2）, lower tower（C1）With positioned at condenser/evaporator between the two（K）, lower tower（C1）Bottom is connected with air and enters tower tube road
（2）, upper tower（C2）Top is connected with nitrogen and goes out tower tube road（4）, air enters tower tube road（2）Go out tower tube road with nitrogen（4）Respectively through
Main heat exchanger（E1）Realize heat exchange, it is characterised in that：Condenser/evaporator（K）Evaporation side be connected with liquid oxygen output channel (1), liquid
Oxygen output channel is sequentially connected with High Pressure Liquid Oxygen Pump on (1)（OP1）And high pressure heat exchanger（E3）, the air enters tower tube road（2）Tool
There are two branch roads of parallel connection, a branch road is by the main heat exchanger（E1）, another branch road is by the high pressure heat exchanger
（E3）Realize the heat exchange of air and liquid oxygen.
2. a kind of air separation unit with high pressure heat exchange oxygen supply according to claim 1, it is characterised in that：The lower tower
（C1）Lower end is connected with liquid air pipeline（5）, liquid air pipeline（5）The other end is connected to tower（C2）Top, liquid air pipeline（5）It is provided with
Liquid air heat exchanger（E2）, the nitrogen goes out tower tube road（4）By liquid air heat exchanger（E2）.
3. a kind of air separation unit with high pressure heat exchange oxygen supply according to claim 2, it is characterised in that：The condensation is steamed
Hair device（K）Condensation side be connected with liquid nitrogen pipes（6）, liquid nitrogen pipes（6）By liquid air heat exchanger（E2）It is connected to tower（C2）Top
Portion.
4. a kind of air separation unit with high pressure heat exchange oxygen supply according to claim 3, it is characterised in that：The upper tower
（C2）Go out tower tube road in nitrogen（4）Interface and liquid air pipeline（5）It is rectifying section, liquid air pipeline between interface（5）It is under interface
Stripping section, rectifying section is connected with dirty nitrogen and goes out tower tube road（3）, dirty nitrogen goes out tower tube road（3）Sequentially pass through liquid air heat exchanger（E2）Changed with master
Hot device（E1）.
5. a kind of air separation unit with high pressure heat exchange oxygen supply according to claim 4, it is characterised in that：The high pressure is changed
Hot device（E3）It is high pressure wound tube heat exchanger.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621110161.7U CN206176891U (en) | 2016-10-10 | 2016-10-10 | Air separation device with high pressure heat transfer oxygen suppliment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621110161.7U CN206176891U (en) | 2016-10-10 | 2016-10-10 | Air separation device with high pressure heat transfer oxygen suppliment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206176891U true CN206176891U (en) | 2017-05-17 |
Family
ID=58677284
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621110161.7U Expired - Fee Related CN206176891U (en) | 2016-10-10 | 2016-10-10 | Air separation device with high pressure heat transfer oxygen suppliment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206176891U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106440660A (en) * | 2016-10-10 | 2017-02-22 | 浙江海天气体有限公司 | Air separation device with high-pressure heat exchange and oxygen supply |
-
2016
- 2016-10-10 CN CN201621110161.7U patent/CN206176891U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106440660A (en) * | 2016-10-10 | 2017-02-22 | 浙江海天气体有限公司 | Air separation device with high-pressure heat exchange and oxygen supply |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| 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: 20170517 Termination date: 20211010 |