CN205690799U - High-efficiency and energy-saving type liquid CO 2 production line - Google Patents
High-efficiency and energy-saving type liquid CO 2 production line Download PDFInfo
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- CN205690799U CN205690799U CN201620463241.4U CN201620463241U CN205690799U CN 205690799 U CN205690799 U CN 205690799U CN 201620463241 U CN201620463241 U CN 201620463241U CN 205690799 U CN205690799 U CN 205690799U
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Abstract
This utility model high-efficiency and energy-saving type liquid CO 2 production line, belongs to carbon dioxide production manufacturing technology field；Technical problem to be solved is to provide a kind of high-efficiency and energy-saving type liquid CO 2 production line, not only environmental protection and energy saving, improves production efficiency, it is also possible to extend the service life of compressor；The technical scheme is that high-efficiency and energy-saving type liquid CO 2 production line, including compressor, cleaning system, ammonia cooler, finished product storage tank and withdrawer, the one-level entrance of compressor is unstripped gas entrance, three grades of outlets of compressor are connected with cleaning system entrance, the outlet of cleaning system is connected with ammonia cooler entrance, ammonia cooler outlet is connected with finished product storage tank entrance, described finished product storage tank is provided with periodic off-gases recovery port, and described periodic off-gases recovery port is connected with the entrance of withdrawer, the outlet of withdrawer is connected with the three of compressor grades of entrances；This utility model is the improvement that energy-saving based on liquid CO 2 production line is made.
Description
Technical field
This utility model high-efficiency and energy-saving type liquid CO 2 production line, belongs to carbon dioxide production manufacturing technology field,
The power-saving technology being specifically related to liquid CO 2 production line is improved.
Background technology
Liquid CO 2 production process be compressor pressurized feedstock gas to 2.5--3.0MPa, after purification, then through ammonia
Cold being cooled to-15-20 DEG C, liquefaction sends into finished product carbon dioxide storage tank after purifying, during sending into storage tank, because of dioxy
Changing carbon production system pressure is 2.5--3.0MPa, and storage tank Stress control has 2-3% not coagulate in 1.8--2.0MPa, decompression process
Property miscellaneous QI and carbon dioxide discharge out.This portion gas discharging out, by former technological design be and fresh feed gas
Converge feeding one section of import of compressor, after three stage compression, again send into production system, recycle.
Utility model content
It is a kind of energy-efficient that this utility model overcomes the deficiency that prior art exists, technical problem to be solved to be to provide
Type liquid CO 2 production line, not only environmental protection and energy saving, improve production efficiency, it is also possible to extend the service life of compressor.
In order to solve above-mentioned technical problem, this utility model the technical scheme is that high-efficiency and energy-saving type liquid dioxy
Changing carbon production line, including compressor, cleaning system, ammonia cooler, finished product storage tank and withdrawer, the one-level entrance of compressor is raw material
Gas entrance, three grades of outlets of compressor are connected with cleaning system entrance, and the outlet of cleaning system is connected with ammonia cooler entrance,
Ammonia cooler outlet is connected with finished product storage tank entrance, and described finished product storage tank is provided with periodic off-gases recovery port, and described periodic off-gases returns
Closing up and be connected with the entrance of withdrawer, the outlet of withdrawer is connected with the three of compressor grades of entrances.
Described cleaning system includes the desulfurizer being sequentially connected with, de-hydrocarbon device and dehydration device.
The one-level entrance of described compressor is provided with the surge tank of storage unstripped gas.
Finished product storage tank is speeded to release by the had the beneficial effect that this utility model of this utility model
Gas reclaimed by withdrawer after, be sent directly into three grades of entrances of compressor and carry out three stage compression, it is not necessary to again carry out one, two
Level compression, has reached energy-saving and cost-reducing purpose, and has improve production efficiency；Owing to the periodic off-gases pressure reclaimed is higher than in compressor
Gas, after being sent directly into compressor, can expand because of self decompression heat absorption, reduce the gas temperature in compressor, do not affecting
On the premise of compressor normally works, extend the service life of piston ring.
Accompanying drawing explanation
The utility model is described in further detail below in conjunction with the accompanying drawings.
Fig. 1 is process chart of the present utility model.
In figure: 1 is compressor, 2 is desulfurizer, and 3 is de-hydrocarbon device, and 4 is dehydration device, and 5 is ammonia cooler, and 6 is finished product
Storage tank, 7 is withdrawer.
Detailed description of the invention
The utility model will be further described to combine accompanying drawing below by implementing procedure.
As it is shown in figure 1, this utility model high-efficiency and energy-saving type liquid CO 2 production line, including compressor 1, purify system
System, ammonia cooler 5, finished product storage tank 6 and withdrawer 7, the one-level entrance of compressor 1 is unstripped gas entrance, three grades of outlets of compressor 1
Being connected with cleaning system entrance, the outlet of cleaning system is connected with ammonia cooler 5 entrance, ammonia cooler 5 outlet and finished product storage tank 6
Entrance is connected, and described finished product storage tank 6 is provided with periodic off-gases recovery port, and the entrance of described periodic off-gases recovery port and withdrawer 7
Being connected, the outlet of withdrawer 7 is connected with three grades of entrances of compressor 1.
Described cleaning system includes the desulfurizer 2 being sequentially connected with, de-hydrocarbon device 3 and dehydration device 4.
As described in Figure 1, the unstripped gas feeding compressor 1 of carbon dioxide carries out one, two, three and be compressed to 2.5
3.0MPa, enters back into cleaning system and carries out desulfurization, the de-PROCESS FOR TREATMENT such as hydrocarbon, dehydration, be then admitted in ammonia cooler 5 liquefy
Purify, finally send into finished product storage tank 6.Owing to storage tank Stress control was reducing pressure at 1.8 2.0MPa, the carbon dioxide after liquefaction
Journey has 2-3% incoagulability miscellaneous QI and carbon dioxide discharges out, this part periodic off-gases by finished product storage tank 6 speed put
Gas recovery port enters in withdrawer 7, and this portion gas is directly fed again into by withdrawer 7 again from the three of compressor 1 grades of entrances
In production line, eliminate a two-stage compression, reach energy-saving and cost-reducing purpose, and the liquid CO 2 yield that every day increases can
Promote 1-2%, improve production efficiency.Simultaneously as 1 three grades of inlet pressures of compressor are 0.8-1.1MPa, periodic off-gases enters pressure
Will necessarily expand because of decompression heat absorption after contracting machine 1, thus reduce the temperature of compressor and internal gas thereof, extend piston ring
Service life.
The one-level entrance of described compressor 1 is provided with the surge tank of storage unstripped gas.
Above in conjunction with accompanying drawing, embodiment of the present utility model is explained in detail, but on this utility model is not limited to
State embodiment, in the ken that those of ordinary skill in the art are possessed, it is also possible to without departing from this utility model objective
On the premise of various changes can be made.Such as, the cleaning system in this utility model can also include denitrification apparatus etc. other is permissible
Realize any equipment of purifying carbon dioxide technique.
Claims (3)
1. high-efficiency and energy-saving type liquid CO 2 production line, it is characterised in that: include compressor (1), cleaning system, ammonia cooler
(5), finished product storage tank (6) and withdrawer (7), the one-level entrance of compressor (1) is unstripped gas entrance, and three grades of compressor (1) go out
Mouth is connected with cleaning system entrance, and the outlet of cleaning system is connected with ammonia cooler (5) entrance, and ammonia cooler (5) exports and becomes
Product storage tank (6) entrance is connected, and described finished product storage tank (6) is provided with periodic off-gases recovery port, and described periodic off-gases recovery port with return
The entrance receiving device (7) is connected, and the outlet of withdrawer (7) is connected with three grades of entrances of compressor (1).
High-efficiency and energy-saving type liquid CO 2 production line the most according to claim 1, it is characterised in that: described purification system
System includes the desulfurizer (2) being sequentially connected with, de-hydrocarbon device (3) and dehydration device (4).
High-efficiency and energy-saving type liquid CO 2 production line the most according to claim 1 and 2, it is characterised in that: described compression
The one-level entrance of machine (1) is provided with the surge tank of storage unstripped gas.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620463241.4U CN205690799U (en) | 2016-05-20 | 2016-05-20 | High-efficiency and energy-saving type liquid CO 2 production line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620463241.4U CN205690799U (en) | 2016-05-20 | 2016-05-20 | High-efficiency and energy-saving type liquid CO 2 production line |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205690799U true CN205690799U (en) | 2016-11-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620463241.4U Active CN205690799U (en) | 2016-05-20 | 2016-05-20 | High-efficiency and energy-saving type liquid CO 2 production line |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205690799U (en) |
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2016
- 2016-05-20 CN CN201620463241.4U patent/CN205690799U/en active Active
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