CN208635427U - A kind of device using dirty nitrogen cold energy precooled air - Google Patents
A kind of device using dirty nitrogen cold energy precooled air Download PDFInfo
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- CN208635427U CN208635427U CN201821107385.1U CN201821107385U CN208635427U CN 208635427 U CN208635427 U CN 208635427U CN 201821107385 U CN201821107385 U CN 201821107385U CN 208635427 U CN208635427 U CN 208635427U
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- dirty nitrogen
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Abstract
The utility model discloses a kind of device using dirty nitrogen cold energy precooled air, which includes compressor, expander, heat exchanger, cooling pipe, middle pumping pipe, heating pipe and air hose；Middle one end for taking out pipe is located at outside heat exchanger to be communicated with dirty nitrogen source, and the other end connects the entrance of expanding machine after drawing in the middle part of heat exchanger；The outlet of one end connection expanding machine of cooling pipe, the other end are connect after passing fully through heat exchanger with the entrance of compressor, and the outlet of one end connect compressor for the pipe that heats up, the other end is connect with external system；The air hose is communicated with heat exchanger, and air and dirty the nitrogen reverse flow in respective pipeline respectively realize the pre-cooling to air by heat exchanger.The utility model can achieve the purpose that energy efficiency rationally using the cold energy of dirty nitrogen by air precooling.
Description
Technical field
The device of the utility model relates to a kind of in air-seperation system precooled air, and in particular to a kind of to utilize dirty nitrogen
The device of cold energy precooled air, belongs to field of energy-saving technology.
Background technique
Dirty nitrogen refers to that in air separation nitrogen content is generally 94%~96% nitrogen, dirty in air separation process
Nitrogen cold energy rich in does not under normal conditions make full use of the cold energy of dirty nitrogen, causes wasting for the energy, no
Conducive to energy-saving and emission-reduction.
In addition, in air-seperation system work, in order to allow rectifying to separate the more reasonable of Deethanizer design, and also to drop
The energy consumption of low rectifying knockout tower generally before feeding air enters rectifying column needs that air is pre-chilled, is lowered into rectifying column
The temperature of air.Therefore, the pre-cooling for participating in air how to efficiently use the cold energy of dirty nitrogen is to realize the critical issue of energy efficiency.
Utility model content
In view of this, the present invention provides a kind of devices using dirty nitrogen cold energy precooled air, can rationally utilize
Air precooling is achieved the purpose that energy efficiency by the cold energy of dirty nitrogen.
A kind of device using dirty nitrogen cold energy precooled air, the device include compressor, expander, heat exchanger, cooling pipe,
Middle pumping pipe, heating pipe and air hose；
Described middle one end for taking out pipe is located at outside heat exchanger to be communicated with dirty nitrogen source, and the other end connects after drawing in the middle part of heat exchanger
Connect the entrance of expanding machine；The outlet of one end connection expanding machine of cooling pipe, the other end pass fully through after heat exchanger with compressor
Entrance connection, the outlet of one end connect compressor for the pipe that heats up, the other end are connect with external system；The air hose and heat exchange
Device communicates, and air and dirty the nitrogen reverse flow in respective pipeline respectively realize the pre-cooling to air by heat exchanger.
Further, the compressor and expanding machine are arranged along same level axis coaxle.
The utility model has the advantages that
The utility model can the cold energy in fully utilize dirty nitrogen realize the pre-cooling to air, be not required to additionally increase the energy
Supply, efficiently utilizes idle cold energy.Dirty nitrogen pressure is reduced using expanding machine simultaneously and obtains lower potential temperature, by dirty nitrogen
Cold energy use rate further increases, and uses the coaxial mounted mode of expanding machine-compressor, and expanding machine output work is to compress
Machine acting, which can be with the effectively save energy.
Detailed description of the invention
Fig. 1 is the overall structure relation schematic diagram of the utility model
Wherein, 1- heat exchanger, 2- compressor, 3- expanding machine, 4- cooling pipe, pipe, 6- heating pipe, 7- air hose are taken out in 5-.
Specific embodiment
With reference to the accompanying drawings and examples, the utility model is described in detail.
As shown in Fig. 1, the utility model provides a kind of device using dirty nitrogen cold energy precooled air, which includes
Compressor 2, expanding machine 3, heat exchanger 1, cooling pipe 4, middle pumping pipe 5, heating pipe 6 and air hose 7；
Compressor 2 and expanding machine 3 are arranged along same level axis coaxle, middle one end for taking out pipe 5 be located at 1 outside of heat exchanger and
Dirty nitrogen source communicates, and the other end connects the entrance of expanding machine 3 after drawing in the middle part of heat exchanger 1；One end of cooling pipe 4 connects expanding machine
3 outlet, the other end are connect after passing fully through heat exchanger 1 with the entrance of compressor 2, and heat up one end connect compressor 2 of pipe 6
Outlet, the other end are connect with external system；Air hose is communicated with heat exchanger 1, and air and dirty nitrogen are anti-in respective pipeline respectively
To flowing, the pre-cooling to air is realized by heat exchanger 1.
It is cooled to carry out heat exchange with dirty nitrogen in heat exchanger 1 by purified air (19 DEG C, 1.1Mpa), by heat exchange
Pressure is reduced to 4kpa after device 1 exchanges heat, air (1.096Mpa) after cooling be saturated air liquid status and moisture percentage be 30~
50%.
Dirty nitrogen (- 167 DEG C, 1.096Mpa) is gas-liquid mixed, and wherein liquid phase ratio is 10%~30%, and dirty nitrogen is as heat exchange
Cold logistics in device 1 exchanges heat with air；Dirty nitrogen passes through middle pumping with air heat-exchange in heat exchanger 1 and in the middle part of heat exchanger 1
Pipe 5 is extracted out, the dirty nitrogen (- 80~-100 DEG C, 1.092Mpa) of middle pumping by middle pumpings pipe 5 entrance expanding machine 3, the pressure of dirty nitrogen from
1.092Mpa drops to 90kpa, and temperature is reduced to -180~-190 DEG C by -80~-100 DEG C, and the dirty nitrogen after expansion decompression cooling is again
It is exchanged heat by cooling pipe 4 into heat exchanger 1；Dirty nitrogen (16 DEG C, 86kpa) enters coaxial with expanding machine 3 after heat exchange
It is compressed in compressor 2, the pressure of dirty nitrogen is increased to 140kpa by 86kpa, and temperature is increased to 40 DEG C by 16 DEG C, rises by pressurization
Dirty nitrogen after temperature enters in external molecular sieve purification system through heating pipe 6 as purge gass.
In conclusion the above is only the preferred embodiments of the present utility model only, it is not intended to limit the utility model
Protection scope.Within the spirit and principle of the utility model, any modification, equivalent replacement, improvement and so on should all wrap
Containing being within the protection scope of the utility model.
Claims (2)
1. a kind of device using dirty nitrogen cold energy precooled air, which is characterized in that the device includes compressor, expanding machine, heat exchange
Device, cooling pipe, middle pumping pipe, heating pipe and air hose；
Described middle one end for taking out pipe is located at outside heat exchanger to be communicated with dirty nitrogen source, and the other end connects swollen after drawing in the middle part of heat exchanger
The entrance of swollen machine；The outlet of one end connection expanding machine of cooling pipe, the other end pass fully through the entrance after heat exchanger with compressor
Connection, the outlet of one end connect compressor for the pipe that heats up, the other end are connect with external system；The air hose and heat exchanger phase
Logical, air and dirty the nitrogen reverse flow in respective pipeline respectively realize the pre-cooling to air by heat exchanger.
2. the device as described in claim 1 using dirty nitrogen cold energy precooled air, which is characterized in that the compressor and expansion
Machine is arranged along same level axis coaxle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821107385.1U CN208635427U (en) | 2018-07-12 | 2018-07-12 | A kind of device using dirty nitrogen cold energy precooled air |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821107385.1U CN208635427U (en) | 2018-07-12 | 2018-07-12 | A kind of device using dirty nitrogen cold energy precooled air |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208635427U true CN208635427U (en) | 2019-03-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821107385.1U Active CN208635427U (en) | 2018-07-12 | 2018-07-12 | A kind of device using dirty nitrogen cold energy precooled air |
Country Status (1)
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| CN (1) | CN208635427U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109059422A (en) * | 2018-07-12 | 2018-12-21 | 北京拓首能源科技股份有限公司 | A kind of device using dirty nitrogen cold energy precooled air |
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2018
- 2018-07-12 CN CN201821107385.1U patent/CN208635427U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109059422A (en) * | 2018-07-12 | 2018-12-21 | 北京拓首能源科技股份有限公司 | A kind of device using dirty nitrogen cold energy precooled air |
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