CN207019382U - A kind of liquid oxygen pours in down a chimney the device for accelerating oxygen making unit thermal starting - Google Patents
A kind of liquid oxygen pours in down a chimney the device for accelerating oxygen making unit thermal starting Download PDFInfo
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- CN207019382U CN207019382U CN201720253587.6U CN201720253587U CN207019382U CN 207019382 U CN207019382 U CN 207019382U CN 201720253587 U CN201720253587 U CN 201720253587U CN 207019382 U CN207019382 U CN 207019382U
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- liquid oxygen
- pipeline
- chimney
- valve
- gasification
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- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
A kind of liquid oxygen of the utility model pours in down a chimney the device for accelerating oxygen making unit thermal starting, described device includes the air separation unit ice chest being sequentially connected, the instrument and valve on connecting line and pipeline between liquid oxygen gasification pump, liquid oxygen vessel and the equipment, specific connected mode are：Branch pipe all the way is separated from the loxygen discharge pipeline before the cold drain valve of master and pours in down a chimney pipeline as newly-increased liquid oxygen, liquid oxygen gasification pipeline between access liquid oxygen gasification pump and liquid oxygen gasification pump discharge valve is connected with liquid oxygen vessel, is provided with manual Subzero valve and pressure gauge, flowmeter；The relatively existing tank car of the device has bad luck that the mode of pouring in down a chimney is more convenient, safety, and pressure and Flow-rate adjustment are more convenient.
Description
Technical field
The utility model belongs to cryogenic refrigeration method separation air oxygen making unit field, more particularly to air distillation system.
Background technology
The thermal starting of oxygen making unit air separation unit refer to air separation unit under normal temperature state (about 20 DEG C or so) startup.
When system is in normal temperature stand-by state, air separation unit is cooled to less than -180 DEG C from normal temperature, and by air fluid forming liquid
Body, rectifying operating mode is established in space division rectifying column, the separation of the component such as oxygen nitrogen, it is necessary to substantial amounts of cold, that is, consume substantial amounts of electric energy, and
In this stage, air separation unit is no output of products, i.e., power consumption is reactive loss caused by this startup stage.General large-scale sky
It is more than hour to be required for 40 for the thermal starting of separating device, shortens the thermal starting time, can not only reduce reactive loss, saves the energy,
And conveying products can be shifted to an earlier date, ensure the demand of downstream user, promote energy-conservation and economy to be improved.
Oxygen making unit air separation unit has cooled down comprehensively during thermal starting in air separation unit, the main cold beginning hydrops stage,
Start to exchange heat because master is cold, have one section of process of refusing to budge, the cold liquid level speedup of this stage master is very slowly, it is necessary to which substantial amounts of cold is mended
Fill, cause the process to last for hours even longer.To make to lead cold liquid level rapid growth, quickly enter rectifying and adjust pure rank
Section, conventional way is to pour in down a chimney to master cold, it is necessary to which special liquid oxygen low-temperature tanker first carries out liquid by liquid oxygen using cryogenic liquid tank lorry
Oxygen fills, then the liquid oxygen that tank car is shipped pours in down a chimney to air separation unit, and such as the amount of pouring in down a chimney is inadequate, also needs secondary fill to have bad luck, and takes
It is longer and need to manually take over and have bad luck；In addition, the adjustment of tank car boost pressure is inconvenient, tank car pressure inside the tank is less than the main cold discharge mouth of pipe
Pressure can not then pour in down a chimney, hypertonia, then rectifying operating mode in space division rectifying column is impacted, while pour in down a chimney the control of liquid oxygen flow
Difficulty, security risk is larger, needs special messenger's on-site supervision.
The content of the invention
In order to solve the above technical problems, the utility model, which gives a kind of liquid oxygen, pours in down a chimney the dress for accelerating oxygen making unit thermal starting
Put.
Described device includes air separation unit ice chest, liquid oxygen gasification pump and the liquid oxygen vessel being sequentially connected, air separation unit ice chest
Bottom is connected with loxygen discharge pipeline, and the pipeline is connected to outlet, liquid oxygen vessel and liquid oxygen gasification pump by the cold drain valve of master
It is cascaded by liquid oxygen gasification pipeline, connection liquid oxygen gasification pump discharge valve is to exporting, and described device is by from ice chest and master
Branch pipe all the way is separated on loxygen discharge pipeline between cold drain valve and pours in down a chimney pipeline as newly-increased liquid oxygen, with liquid oxygen gasification pump and liquid
Liquid oxygen gasification pipeline connection between gasification pump discharge valve, realizes and connects ice chest with liquid oxygen vessel, reach what liquid oxygen poured in down a chimney
Purpose；Described device also pours in down a chimney instrument and valve on pipeline including newly-increased liquid oxygen.
The further technical scheme of the utility model is before the drain valve of the cold loxygen discharge pipeline of master, to be connected by three
Enter two-way pipeline, pour in down a chimney pipeline all the way for newly-increased liquid oxygen, it is described to pour in down a chimney pipeline access liquid oxygen gasification pump and liquid oxygen gasification pump discharge
Liquid oxygen gasification pipeline between valve is connected with liquid oxygen vessel, is provided with manual Subzero valve；Tank car is installed in another way
Fluid valve, reserve access tank car；The scheme remains prior art tank car Liquid pouring pipe road and interface, to standby.
The further technical scheme of the utility model pours in down a chimney loine pressure to pour in down a chimney to be additionally provided with pipeline in the liquid oxygen
Table and flowmeter, it is easy to more direct effectively adjustment control loine pressure and flow.
Device described in the utility model will main cold discharge pipe and liquid oxygen vessel gas by setting a liquid oxygen to pour in down a chimney pipeline
Change pipeline to link together, the method by starting liquid oxygen vessel vaporization pump, the liquid oxygen of liquid oxygen vessel is pumped to air separation unit
Master is cold, reaches the purpose for accelerating oxygen making unit thermal starting；The relatively existing tank car of this mode have bad luck the mode of pouring in down a chimney it is more convenient, peace
Entirely, and pressure and Flow-rate adjustment are more convenient for controlling.
Brief description of the drawings
Fig. 1 is that the utility model device embodiment pipeline arranges schematic diagram.
Reference numeral explanation：
1st, air separation unit ice chest 2, liquid oxygen vessel 3, liquid oxygen gasification pump 4, main cold drain valve 5, liquid oxygen gasification pump discharge
Valve 6, tank car pour in down a chimney liquid oxygen valve 7, loxygen discharge pipeline 8, liquid oxygen gasification pipeline 10, newly-increased liquid oxygen and pour in down a chimney pipeline 11, fall
Pipe valve 12 is filled, pours in down a chimney loine pressure table 13, pour in down a chimney pipeline flowmeter
Embodiment
1 pair of the utility model is described further below in conjunction with the accompanying drawings：
The utility model embodiment includes two aspects of field pipes configuration and operation adjustment.
Field pipes configuration includes：Before the drain valve 4 of former main cold loxygen discharge pipeline 7, two-way pipe is accessed by threeway
Road, pours in down a chimney pipeline 10 for newly-increased liquid oxygen all the way, and the pipeline 10 that pours in down a chimney accesses liquid oxygen gasification pump 3 and liquid oxygen gasification pump discharge valve 5
Between liquid oxygen gasification pipeline 8 be connected with liquid oxygen vessel 2, be provided with manual Subzero valve 11, while pouring in down a chimney pipeline 10
On be additionally provided with pressure gauge 12 and flowmeter 13；Tank car is installed in another way and falls fluid valve 6, reserves access tank car.
Operation adjustment comprises the following steps：
1st, start liquid oxygen gasification pump 3, first adjust pump discharge pressure to 0.4Mpa；2nd, open and pour in down a chimney pipe valve 11；3rd, adjust
Whole control liquid oxygen pump pressure is to needing pressure to be poured in down a chimney, and general Stress control is in 0.6Mpa-0.9Mpa, by pouring in down a chimney pipeline pressure
Power table 12 adjusts；4th, adjustment control liquid oxygen pump rate of discharge (according to unit actual conditions, typically exists after reaching requirement
10000m3/ more than h), adjusted by pouring in down a chimney pipeline flowmeter 13；5th, carry out liquid oxygen to pour in down a chimney, pipeline is poured in down a chimney by newly-increased liquid oxygen
Pressure gauge 12 and flowmeter 13 on 10 monitor liquid oxygen pump discharge pressure and flow, and in time according to the cold liquid level of space division master and sky
Pressure tower is divided to be adjusted；6th, the cold stopping liquid oxygen gasification pump 3 after requiring liquid level of space division master is reached, pipe valve 11 is poured in down a chimney in closing.
Retain tank car and pour in down a chimney liquid oxygen pipeline and its control valve 6, be to prevent liquid oxygen vessel 2 for flexible pipe connection tank car
As standby in the case of liquid level deficiency.
In the air separation unit thermal starting stage, it can meet that liquid oxygen needed for the stage is quick, safe using the utility model device
Directly pour in down a chimney from storage tank cold to master, reach the purpose that air separation unit quickly starts.
Operated and facilitated using the utility model device, implement quickly, to save time and manpower and materials, and can monitor at any time
Pressure and flow are adjusted, security is higher, reduces the risk of operating accident generation.
Claims (3)
1. a kind of liquid oxygen pours in down a chimney the device for accelerating oxygen making unit thermal starting, described device includes：The air separation unit being sequentially connected is cold
Case (1), liquid oxygen gasification pump (3) and liquid oxygen vessel (2), air separation unit ice chest (1) bottom are connected with loxygen discharge pipeline (7), pipe
Road (7) is connected to outlet by the cold drain valve of master (4), and liquid oxygen vessel (2) and liquid oxygen gasification pump (3) pass through liquid oxygen gasification pipeline
(8) it is cascaded, connection liquid oxygen gasification pump discharge valve (5) to outlet, it is characterised in that：From ice chest (1) and main cold drain valve
(4) branch pipe all the way is separated on the loxygen discharge pipeline (7) between and pours in down a chimney pipeline (10) as newly-increased liquid oxygen, with liquid oxygen gasification pump
(3) liquid oxygen gasification pipeline (8) connection between liquid oxygen gasification pump discharge valve (5), described device also include newly-increased liquid oxygen and poured in down a chimney
Instrument and valve on pipeline (10).
2. device according to claim 1, it is characterised in that：Liquid oxygen between ice chest (1) and main cold drain valve (4) is arranged
Put on pipeline (7), two-way pipeline is accessed by threeway, pour in down a chimney pipeline (10) as newly-increased liquid oxygen all the way, it is described to pour in down a chimney pipeline
(10) the liquid oxygen gasification pipeline (8) accessed between liquid oxygen gasification pump (3) and liquid oxygen gasification pump discharge valve (5) and liquid oxygen vessel (2)
Connection, is provided with manual Subzero valve (11)；Tank car is installed in another way and falls fluid valve (6), reserves access tank car.
3. device according to claim 1 or 2, it is characterised in that：The liquid oxygen pours in down a chimney to be additionally provided with down on pipeline (10)
Fill loine pressure table and (12) and pour in down a chimney pipeline flowmeter (13), pour in down a chimney loine pressure table (12) be arranged on liquid oxygen gasification pump (3) and
Between manual Subzero valve (11), pour in down a chimney pipeline flowmeter (13) and be arranged between ice chest (1) and manual Subzero valve (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720253587.6U CN207019382U (en) | 2017-03-16 | 2017-03-16 | A kind of liquid oxygen pours in down a chimney the device for accelerating oxygen making unit thermal starting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720253587.6U CN207019382U (en) | 2017-03-16 | 2017-03-16 | A kind of liquid oxygen pours in down a chimney the device for accelerating oxygen making unit thermal starting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207019382U true CN207019382U (en) | 2018-02-16 |
Family
ID=61461330
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720253587.6U Active CN207019382U (en) | 2017-03-16 | 2017-03-16 | A kind of liquid oxygen pours in down a chimney the device for accelerating oxygen making unit thermal starting |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207019382U (en) |
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2017
- 2017-03-16 CN CN201720253587.6U patent/CN207019382U/en active Active
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