CN207180158U - A kind of space division nitrogen precooling system - Google Patents
A kind of space division nitrogen precooling system Download PDFInfo
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- CN207180158U CN207180158U CN201721159889.3U CN201721159889U CN207180158U CN 207180158 U CN207180158 U CN 207180158U CN 201721159889 U CN201721159889 U CN 201721159889U CN 207180158 U CN207180158 U CN 207180158U
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Abstract
The utility model discloses a kind of space division nitrogen precooling system, including air compressor, air aftercooler, air cooling tower, water- to-water heat exchanger, water-cooling tower, low temperature water pump and cooling unit, air aftercooler is housed on the air inlet pipeline between air cooling tower bottom and air compressor, water- to-water heat exchanger is housed on medium output pipe between water-cooling tower top, water- to-water heat exchanger is provided with circulating water intake and circulating water outlet, low temperature water pump and cooling unit are sequentially arranged with medium intake line between at the top of water cooling tower bottom and air cooling tower, outlet pipe at the top of air cooling tower is connected with molecular sieve.The utility model makes air enter air cooling tower bottom with normal temperature state, avoids Aging Damage of the high-temperature gas to air cooling tower bottom filling by setting air aftercooler on air inlet pipeline；Reduce by two normal temperature water pumps simultaneously, reduce equipment investment and maintenance cost.
Description
Technical field
It the utility model is related to a kind of chilldown system, more particularly to a kind of space division nitrogen precooling system.
Background technology
Nitrogen precooling system is part important in air separation unit, and its effect mainly cools down, purification raw material is empty
Gas.
Traditional nitrogen precooling system is mainly by air cooling tower, water-cooling tower, water filter, handpiece Water Chilling Units and two normal temperature water pumps
Formed with two low temperature water pumps.Air cooling tower bottom is directly entered after raw air pressurization, temperature, need to be through two often close to 100 DEG C
Warm water pump is drawn water pressurization by circulation, and normal-temperature water is by entering from top to bottom cooling and rinse air in the middle part of air cooling tower.It is this
The high maintenance cost that equipment investment is big, high-temperature gas is brought to the Aging Damage of air cooling tower bottom filling be present in nitrogen precooling system
Problem is, it is necessary to be improved.
Utility model content
The purpose of this utility model is to overcome the above-mentioned problems in the prior art, there is provided a kind of space division nitrogen water precooling
System.
To realize above-mentioned technical purpose and the technique effect, the utility model is to be achieved through the following technical solutions：
A kind of space division nitrogen precooling system, including air compressor, air aftercooler, air cooling tower, water- to-water heat exchanger, water
Cold tower, low temperature water pump and cooling unit, equipped with air end on the air inlet pipeline between the air cooling tower bottom and air compressor
Level cooler, at the top of the air cooling tower bottom and water-cooling tower between medium output pipe on water- to-water heat exchanger is housed, the water changes
Hot device is provided with circulating water intake and circulating water outlet, at the top of the water cooling tower bottom and air cooling tower between medium intake line
On be sequentially arranged with low temperature water pump and cooling unit, the low temperature water pump shares two, and is attached using parallel way, described
Air cooling tower, water-cooling tower form a loop using medium output pipe, medium intake line, the escape pipe at the top of the air cooling tower
Road is connected with molecular sieve.
Preferably, in above-mentioned space division nitrogen precooling system, the import of the air compressor is provided with filter by suction.
Preferably, in above-mentioned space division nitrogen precooling system, washing material in the medium output pipe, medium intake line
The medium of air is the unsaturated dirty nitrogen adsorption moisture returned by softened water after treatment by distillation system and is put
What sky was formed.
Preferably, in above-mentioned space division nitrogen precooling system, on the pipeline between every low temperature water pump and cooling unit
It is respectively provided with a flowmeter.
Preferably, in above-mentioned space division nitrogen precooling system, it is additionally provided with below the water-cooling tower and is passed through returning from space division
The air inlet pipeline of gas.
The beneficial effects of the utility model are：
The utility model is simple in construction, reasonable in design, by setting air aftercooler on air inlet pipeline, makes air
Air cooling tower bottom is entered with normal temperature state, avoids Aging Damage of the high-temperature gas to air cooling tower bottom filling；Two are reduced simultaneously
Normal temperature water pump, reduce equipment investment and maintenance cost.
Certainly, implement any product of the present utility model to it is not absolutely required to reach all the above advantage simultaneously.
Brief description of the drawings
In order to illustrate more clearly of the technical scheme of the utility model embodiment, make required for being described below to embodiment
Accompanying drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the utility model,
For those of ordinary skill in the art, on the premise of not paying creative work, can also be obtained according to these accompanying drawings
Other accompanying drawings.
Fig. 1 is structural representation of the present utility model；
In accompanying drawing, the list of parts representated by each label is as follows：
1- air compressors, 2- air aftercoolers, 3- air cooling towers, 4- water- to-water heat exchangers, 5- water-cooling towers, 6- water at low temperature
Pump, 7- cooling units.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the embodiment of the utility model is carried out
Clearly and completely describing, it is clear that described embodiment is only the utility model part of the embodiment, rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made
The all other embodiment obtained, belong to the scope of the utility model protection.
Refer to shown in Fig. 1, the present embodiment is a kind of space division nitrogen precooling system, including air compressor 1, air final stage
Cooler 2, air cooling tower 3, water- to-water heat exchanger 4, water-cooling tower 5, low temperature water pump 6 and cooling unit 7.Compressed with air the bottom of air cooling tower 3
Air aftercooler 2 is housed, the import of air compressor is provided with filter by suction on the air inlet pipeline between machine 1.Air cooling tower 3
Water- to-water heat exchanger 4 is housed on medium output pipe between bottom and the top of water-cooling tower 5, water- to-water heat exchanger 4 is provided with circulating water intake
And circulating water outlet.Be sequentially arranged with medium intake line between the bottom of water-cooling tower 5 and the top of air cooling tower 3 low temperature water pump 6 and
Cool down unit 7.Low temperature water pump 6 shares two, and is attached using parallel way.Between low temperature water pump 6 and cooling unit 7
A flowmeter is respectively provided with pipeline.Air cooling tower 3, water-cooling tower 5 form one using medium output pipe, medium intake line and returned
Road.
The outlet pipe at the top of air cooling tower 3 is connected with molecular sieve.The lower section of water-cooling tower 5, which is additionally provided with, is passed through returning from space division
The air inlet pipeline of gas.
One of the present embodiment has particular application as：Air inlet final stage cools down after raw air is compressed by air compressor 1
Device 2 is cooled to normal temperature state, and normal temperature raw air enters air cooling tower 3, and air cooling tower is 3 packed towers, and air passes through fill out from lower to upper
Material, cooled down by medium from top to bottom, and wash the harmful substances such as part NOX, SO2, CL+ simultaneously, finally pass through point at top
From device, into sieve purification system, the processing air themperature gone out at the top of air cooling tower is about 8 DEG C.Medium output pipe, medium
The medium of washing material air in intake line, it is the unsaturation returned by softened water after treatment by distillation system
Dirty nitrogen adsorption moisture is simultaneously vented formation.Medium is first cooled in advance by water- to-water heat exchanger 4, then water cooled tower 5 cools down for the first time
Cooling, is pressurizeed after cooling by low temperature water pump 6, then is cooled for second through cooling down unit 7, and temperature is sent into air cooling after being less than 15 DEG C
Tower 3, air is cooled down to meet the air inlet requirement of follow-up sieve purification system.
In the description of this specification, the description of reference term " one embodiment ", " example ", " specific example " etc. means
It is contained in reference to specific features, structure, material or the feature that the embodiment or example describe of the present utility model at least one
In embodiment or example.In this manual, the schematic representation of above-mentioned term is not necessarily referring to identical embodiment or
Example.Moreover, specific features, structure, material or the feature of description can be in any one or more embodiments or example
In combine in an appropriate manner.
The utility model preferred embodiment disclosed above is only intended to help and illustrates the utility model.Preferred embodiment is simultaneously
There is no the details that detailed descriptionthe is all, it is only described embodiment also not limit the utility model.Obviously, according to this theory
The content of bright book, it can make many modifications and variations.This specification is chosen and specifically describes these embodiments, is in order to preferably
Principle and practical application of the present utility model is explained, so that skilled artisan can be best understood by and utilize this
Utility model.The utility model is only limited by claims and its four corner and equivalent.
Claims (5)
- A kind of 1. space division nitrogen precooling system, it is characterised in that：Including air compressor, air aftercooler, air cooling tower, water Heat exchanger, water-cooling tower, low temperature water pump and cooling unit, are filled on the air inlet pipeline between the air cooling tower bottom and air compressor Have an air aftercooler, at the top of the air cooling tower bottom and water-cooling tower between medium output pipe on water- to-water heat exchanger is housed, The water- to-water heat exchanger is provided with circulating water intake and circulating water outlet, at the top of the water cooling tower bottom and air cooling tower between medium Low temperature water pump and cooling unit are sequentially arranged with intake line, the low temperature water pump shares two, and is carried out using parallel way Connection, the air cooling tower, water-cooling tower form a loop, the air cooling tower top using medium output pipe, medium intake line The outlet pipe in portion is connected with molecular sieve.
- 2. space division nitrogen precooling system according to claim 1, it is characterised in that：The import of the air compressor is provided with Filter by suction.
- 3. space division nitrogen precooling system according to claim 1, it is characterised in that：The medium output pipe, medium are defeated Enter the medium of washing material air in pipeline, be that the unsaturation returned by softened water after treatment by distillation system is dirty Nitrogen adsorption moisture is simultaneously vented formation.
- 4. space division nitrogen precooling system according to claim 1, it is characterised in that：Every the low temperature water pump and cooler A flowmeter is respectively provided with pipeline between group.
- 5. space division nitrogen precooling system according to claim 1, it is characterised in that：It is additionally provided with below the water-cooling tower logical Enter the air inlet pipeline of the gas that backflows from space division.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721159889.3U CN207180158U (en) | 2017-09-12 | 2017-09-12 | A kind of space division nitrogen precooling system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721159889.3U CN207180158U (en) | 2017-09-12 | 2017-09-12 | A kind of space division nitrogen precooling system |
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|---|---|
| CN207180158U true CN207180158U (en) | 2018-04-03 |
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| CN201721159889.3U Active CN207180158U (en) | 2017-09-12 | 2017-09-12 | A kind of space division nitrogen precooling system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109114999A (en) * | 2018-08-07 | 2019-01-01 | 中冶南方工程技术有限公司 | Space division chilldown system |
| CN112944806A (en) * | 2021-03-11 | 2021-06-11 | 杭州制氧机集团股份有限公司 | Air separation pre-cooling system |
-
2017
- 2017-09-12 CN CN201721159889.3U patent/CN207180158U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109114999A (en) * | 2018-08-07 | 2019-01-01 | 中冶南方工程技术有限公司 | Space division chilldown system |
| CN112944806A (en) * | 2021-03-11 | 2021-06-11 | 杭州制氧机集团股份有限公司 | Air separation pre-cooling system |
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