CN210340345U - Carbon dioxide's purification system - Google Patents
Carbon dioxide's purification system Download PDFInfo
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- CN210340345U CN210340345U CN201921286129.8U CN201921286129U CN210340345U CN 210340345 U CN210340345 U CN 210340345U CN 201921286129 U CN201921286129 U CN 201921286129U CN 210340345 U CN210340345 U CN 210340345U
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- carbon dioxide
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- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 title claims abstract description 215
- 229910002092 carbon dioxide Inorganic materials 0.000 title claims abstract description 107
- 239000001569 carbon dioxide Substances 0.000 title claims abstract description 107
- 238000000746 purification Methods 0.000 title abstract description 28
- 239000002994 raw material Substances 0.000 claims abstract description 72
- 239000007788 liquid Substances 0.000 claims abstract description 47
- 238000001035 drying Methods 0.000 claims abstract description 41
- 238000010438 heat treatment Methods 0.000 claims abstract description 41
- 238000001179 sorption measurement Methods 0.000 claims abstract description 38
- 230000008016 vaporization Effects 0.000 claims abstract description 38
- 238000009834 vaporization Methods 0.000 claims abstract description 36
- 239000006200 vaporizer Substances 0.000 claims description 9
- 238000001914 filtration Methods 0.000 claims description 6
- 238000005057 refrigeration Methods 0.000 claims description 6
- 230000000694 effects Effects 0.000 abstract description 5
- 239000007789 gas Substances 0.000 description 34
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 8
- 239000012535 impurity Substances 0.000 description 5
- 238000000926 separation method Methods 0.000 description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000004215 Carbon black (E152) Substances 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 229910002091 carbon monoxide Inorganic materials 0.000 description 2
- 238000004880 explosion Methods 0.000 description 2
- 229930195733 hydrocarbon Natural products 0.000 description 2
- 150000002430 hydrocarbons Chemical class 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 125000004435 hydrogen atom Chemical class [H]* 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 229910002090 carbon oxide Inorganic materials 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000005431 greenhouse gas Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000009965 odorless effect Effects 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Abstract
A carbon dioxide purification system comprises a raw material tank, a low-temperature liquid pump, a vaporization heating device, a drying bed set, an adsorption bed set, a filter set, a precooler, a liquefaction device and a product tank; the output end of the raw material tank is communicated with the input end of the low-temperature liquid pump, and the top of the raw material tank is provided with an emptying pipe; the output end of the low-temperature liquid pump is communicated with the input end of the vaporization heating device; the output end of the vaporization heating device is provided with a first branch pipe and a second branch pipe, the vaporization heating device is communicated to the raw material tank through the first branch pipe, the vaporization heating device is communicated to the input end of the drying bed group through the second branch pipe, the first branch pipe is provided with a first valve, and the second branch pipe is provided with a second valve; the output end of the drying bed group is communicated with the input end of the adsorption bed group; the utility model provides a carbon dioxide's purification system according to above-mentioned content, its simple structure, convenient operation can reach the purification effect, also can reduce investment cost.
Description
Technical Field
The utility model relates to a carbon dioxide purification equipment field especially relates to a purification system of carbon dioxide.
Background
Carbon dioxide, a carbon oxide, is a colorless, odorless and slightly sour gas at room temperature and pressure, is also a common greenhouse gas, and is also one of the components of air. In terms of physical properties, carbon dioxide has a melting point of-78.5 deg.C, a boiling point of-56.6 deg.C, a density greater than that of air, and is slightly soluble in water. In terms of chemical properties, carbon dioxide is chemically inert, highly thermally stable, nonflammable, and generally non-flammable, and is an acidic oxide.
In the existing carbon dioxide purification equipment, a rectifying tower needs to be configured, the area occupied by the rectifying tower is large, the investment cost is high, and the production process is complex.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a purification system of carbon dioxide, its simple structure, convenient operation can reach the purification effect, also can reduce investment cost.
To achieve the purpose, the utility model adopts the following technical proposal:
a carbon dioxide purification system comprises a raw material tank, a low-temperature liquid pump, a vaporization heating device, a drying bed set, an adsorption bed set, a filter set, a precooler, a liquefaction device and a product tank;
the output end of the raw material tank is communicated with the input end of the low-temperature liquid pump, and the top of the raw material tank is provided with an emptying pipe;
the output end of the low-temperature liquid pump is communicated with the input end of the vaporization heating device;
the output end of the vaporization heating device is provided with a first branch pipe and a second branch pipe, the vaporization heating device is communicated to the raw material tank through the first branch pipe, the vaporization heating device is communicated to the input end of the drying bed group through the second branch pipe, the first branch pipe is provided with a first valve, and the second branch pipe is provided with a second valve;
the output end of the drying bed group is communicated with the input end of the adsorption bed group;
the input end of the adsorption bed group is communicated with the input end of the filter group;
the output end of the filter group is communicated to the input end of the precooler;
the output end of the precooler is communicated to the input end of the liquefaction device;
the output end of the liquefaction device is communicated to the input end of the product tank.
Further, the vaporization heating apparatus includes a vaporizer and a heater;
the output end of the vaporizer is communicated with the input end of the heater.
Furthermore, the drying bed group at least comprises two drying beds which are connected in parallel, and the input end and the output end of each drying bed are provided with drying valves.
Furthermore, the adsorption bed group at least comprises two adsorption beds which are connected in parallel, and the input end and the output end of each adsorption bed are respectively provided with an adsorption valve.
Furthermore, the filter group at least comprises two groups of filters connected in parallel, the number of the filters connected in series in each group of filters is at least two, and the input end and the output end of each group of filters are respectively provided with a filtering valve.
Further, the liquefaction device comprises a liquefier and a refrigerator;
the output end of the refrigerator is communicated to the refrigeration input end of the liquefier, and the refrigeration output end of the liquefier is communicated to the input end of the refrigerator.
Further, a discharge pipe is arranged at the top of the product tank and communicated to the precooler, and a discharge valve is arranged on the discharge pipe.
Further, the vaporization heating device is communicated to the bottom of the raw material tank through a first branch pipe.
The utility model provides a carbon dioxide's purification system according to above-mentioned content, its simple structure, convenient operation can reach the purification effect, also can reduce investment cost.
When the purification system works, liquid raw material carbon dioxide in the raw material tank is conveyed to the vaporization heating device through the low-temperature liquid pump firstly, the liquid carbon dioxide is vaporized and heated to 50 ℃, the second valve is closed, the first valve is opened, the heated carbon dioxide is introduced into the raw material tank, the heated carbon dioxide and the liquid raw material carbon dioxide in the raw material tank are subjected to sufficient heat exchange, on one hand, other impurity gases cannot be introduced, on the other hand, the liquid raw material carbon dioxide can be heated, so that the separation between light components and heavy components in the raw material carbon dioxide is accelerated, and through the emptying pipe arranged at the top of the raw material tank, the light components (oxygen, nitrogen, hydrogen, carbon monoxide, methane and the like) in the liquid raw material carbon dioxide are emptied, and the purity of the raw material carbon dioxide liquid is improved. Consequently, for current conventional carbon dioxide purification system in the middle of, the carbon dioxide system of this application need not set up the rectifying column, also can be with the separation between the light component in the middle of the raw materials carbon dioxide and the heavy ends for whole purification system's structure can be simple, and convenient operation can reach the purification effect, also can reduce investment cost.
Because the raw material tank is a pressure container, if the raw material tank is directly heated, the vaporization speed of the raw material carbon dioxide liquid in the raw material tank is increased, the pressure in the raw material tank is increased in a short time, and the conditions of explosion and the like are possible to occur, so that the life safety of workers is endangered; therefore, this application is earlier with raw materials carbon dioxide liquid heating to carbon dioxide gas, and the carbon dioxide gas after will heating lets in to the feed tank in, and the raw materials carbon dioxide liquid in the indirect ground to the feed tank slowly heats, and the security is higher.
When the content of light components in the liquid raw material carbon dioxide reaches a qualified range, closing the first valve, opening the second valve, conveying the liquid raw material carbon dioxide in the raw material tank to the vaporization heating device through the low-temperature liquid pump again, vaporizing the liquid carbon dioxide, heating the vaporized liquid carbon dioxide to 50 ℃, introducing carbon dioxide gas into the drying bed group for drying treatment, and removing moisture in the carbon dioxide gas; the carbon dioxide gas treated by the drying bed group enters an adsorption bed group, and impurities such as non-methane total hydrocarbon, alcohol and the like in the carbon dioxide gas are absorbed; the carbon dioxide gas treated by the adsorption bed group enters a filter group, and oil and particles in the carbon dioxide gas are filtered; the carbon dioxide gas treated by the filter group enters a precooler, so that the temperature of the carbon dioxide gas is initially reduced, and the subsequent liquefaction of the carbon dioxide gas is facilitated; and (4) the carbon dioxide gas treated by the precooler enters a liquefying device for liquefying, and the liquefied carbon dioxide is conveyed to a product tank for storage.
Drawings
Fig. 1 is a schematic structural diagram of one embodiment of the present invention.
Wherein: raw material tank 11, emptying pipe 111, cryogenic liquid pump 12, vaporization heating device 13, vaporizer 131, heater 132, first branch pipe 1301, second branch pipe 1302, first valve 1303, second valve 1304, drying bed group 21, drying valve 201, drying bed 211, adsorption bed group 22, adsorption bed 221, adsorption valve 202, filter group 23, filter 231, filtration valve 203, precooler 31, liquefier 32, liquefier 321, refrigerator 322, product tank 33, discharge pipe 341, and discharge valve 3411.
Detailed Description
The technical solution of the present invention is further explained by the following embodiments with reference to the accompanying drawings.
As shown in fig. 1, a carbon dioxide purification system includes a raw material tank 11, a cryogenic liquid pump 12, a vaporization heating device 13, a drying bed group 21, an adsorption bed group 22, a filter group 23, a precooler 31, a liquefaction device 32, and a product tank 33;
the output end of the raw material tank 11 is communicated with the input end of the low-temperature liquid pump 12, and the top of the raw material tank 11 is provided with an emptying pipe 111;
the output end of the low-temperature liquid pump 12 is communicated with the input end of the vaporization heating device 13;
the output end of the vaporization heating device 13 is provided with a first branch pipe 1301 and a second branch pipe 1302, the vaporization heating device 13 is communicated to the raw material tank 11 through the first branch pipe 1301, the vaporization heating device 13 is communicated to the input end of the drying bed group 21 through a second branch pipe 132, the first branch pipe 1301 is provided with a first valve 1303, and the second branch pipe 1302 is provided with a second valve 1304;
the output end of the drying bed group 21 is communicated with the input end of the adsorption bed group 22;
the input end of the adsorption bed group 22 is communicated with the input end of the filter group 23;
the output end of the filter group 23 is communicated to the input end of the precooler 31;
the output end of the precooler 31 is communicated to the input end of the liquefaction device 32;
an output of the liquefaction plant 32 communicates to an input of the product tank 33.
When the purification system works, the liquid raw material carbon dioxide in the raw material tank 11 is firstly conveyed to the vaporization heating device 13 through the low-temperature liquid pump 12 to vaporize the liquid carbon dioxide, heating the raw material to 50 ℃, closing the second valve 1304, opening the first valve 1303, introducing the heated carbon dioxide gas into the raw material tank 11, the heated carbon dioxide gas and the liquid raw material carbon dioxide in the raw material tank 11 are subjected to sufficient heat exchange, on one hand, other impurity gases are not introduced, on the other hand, the liquid raw material carbon dioxide gas can be heated, therefore, the separation between the light components and the heavy components in the raw material carbon dioxide is accelerated, the light components (oxygen, nitrogen, hydrogen, carbon monoxide, methane and the like) in the liquid raw material carbon dioxide are emptied through the emptying pipe 111 arranged at the top of the raw material tank 11, and the purity of the raw material carbon dioxide liquid is improved. Consequently, for current conventional carbon dioxide purification system in the middle of, the carbon dioxide system of this application need not set up the rectifying column, also can be with the separation between the light component in the middle of the raw materials carbon dioxide and the heavy ends for whole purification system's structure can be simple, and convenient operation can reach the purification effect, also can reduce investment cost.
Because the raw material tank 11 is a pressure vessel, if the raw material tank 11 is directly heated, the vaporization speed of the raw material carbon dioxide liquid in the raw material tank 11 is increased, the pressure in the raw material tank 11 is increased in a short time, and the conditions such as explosion and the like are possible, so that the life safety of workers is endangered; therefore, this application is earlier with raw materials carbon dioxide liquid heating to carbon dioxide gas, and then the carbon dioxide gas after will heating lets in to raw materials jar 11 in, and the raw materials carbon dioxide liquid in indirect ground to raw materials jar 11 slowly heats, and the security is higher.
When the content of light components in the liquid raw material carbon dioxide reaches a qualified range, closing the first valve 1303, opening the second valve 1304, conveying the liquid raw material carbon dioxide in the raw material tank 11 to the vaporization heating device 13 through the low-temperature liquid pump 12 again, vaporizing the liquid carbon dioxide, heating the vaporized liquid carbon dioxide to 50 ℃, introducing carbon dioxide gas into the drying bed group 21 for drying treatment, and removing moisture in the carbon dioxide gas; the carbon dioxide gas treated by the drying bed group 21 enters an adsorption bed group 22, and impurities such as non-methane total hydrocarbon, alcohol and the like in the carbon dioxide gas are absorbed; the carbon dioxide gas treated by the adsorption bed group 22 enters a filter group 23, and oil and particles in the carbon dioxide gas are filtered; the carbon dioxide gas treated by the filter group 23 enters the precooler 31, so that the temperature of the carbon dioxide gas is initially reduced, and the subsequent liquefaction of the carbon dioxide gas is facilitated; the carbon dioxide gas treated by the precooler 31 enters a liquefaction device 32 for liquefaction, and the liquefied carbon dioxide is conveyed to a product tank 33 for storage.
Further, the vaporization heating device 13 includes a vaporizer 131 and a heater 132;
the output end of the vaporizer 131 is communicated with the input end of the heater 132.
The input terminal of the vaporizer 131 corresponds to the input terminal of the vaporization heating device 13, and the output terminal of the heater 132 corresponds to the output terminal of the vaporization heating device 13. When the raw material carbon dioxide liquid enters the vaporization heating device 13, heat exchange is performed first by the vaporizer 131 to vaporize the liquid raw material carbon dioxide, and then the carbon dioxide gas is heated to a suitable temperature by the heater 132.
Further, the drying bed set 21 at least includes two drying beds 211 connected in parallel, and a drying valve 201 is disposed at an input end and an output end of each drying bed 211.
The embodiment is provided with two drying beds 211, wherein one drying bed 211 is standby, when the common drying bed 211 breaks down and needs to be maintained, the drying valves 201 at the input end and the output end of the common drying bed 211 can be closed, and the drying valves 201 at the input end and the output end of the standby drying bed 211 are opened, so that the purification of carbon dioxide can be continuously carried out, the phenomenon that the production is stopped on the whole line due to the fault of the common drying bed 211 is avoided, and the continuity and the effectiveness of the purification of the carbon dioxide are improved.
Further, the adsorption bed group 22 at least includes two adsorption beds 221 connected in parallel, and an input end and an output end of each adsorption bed 221 are provided with an adsorption valve 202.
In this embodiment, two adsorption beds 221 are provided, one of the adsorption beds 221 is standby, when the common adsorption bed 221 fails and needs maintenance, the adsorption valves 202 at the input end and the output end of the common adsorption bed 221 can be closed, and the adsorption valves 202 at the input end and the output end of the standby adsorption bed 221 are opened, so that the continuous purification of carbon dioxide can be ensured, the full-line shutdown caused by the failure of the common adsorption bed 221 is avoided, and the continuity and effectiveness of carbon dioxide purification are improved.
Further, the filter group 23 at least includes two groups of filters 231 connected in parallel, the number of the filters 231 connected in series in each group of filters 231 is at least two, and the input end and the output end of each group of filters 231 are respectively provided with a filtering valve 203.
In the embodiment, two sets of filters 231 are provided, wherein one set of filters 231 is standby, when the set of filters 231 in common use fails and needs to be maintained, the filtering valves 203 at the input end and the output end of the set of filters 231 in common use can be closed, and the filtering valves 203 at the input end and the output end of the set of filters 231 in standby use are opened, so that the purification of carbon dioxide can be continuously performed, the production stop of the whole line caused by the failure of the set of filters 231 in common use is avoided, and the continuity and effectiveness of the purification of carbon dioxide are improved.
Further, the liquefaction device 32 includes a liquefier 321 and a refrigerator 322;
the output end of the refrigerator 322 is communicated to the refrigeration input end of the liquefier 321, and the refrigeration output end of the liquefier 321 is communicated to the input end of the refrigerator 322.
The liquefier 321 corresponds to the input of the liquefier 32, and the output of the liquefier 321 corresponds to the output of the liquefier 32; the carbon dioxide treated by the precooler 31 enters the liquefier 321 to be liquefied, during the process of liquefying the carbon dioxide, the refrigerating machine 322 mainly provides cold energy for the carbon dioxide, and because the output end of the refrigerating machine 322 is communicated to the refrigerating input end of the liquefier 321 and the refrigerating output end of the liquefier 321 is communicated to the input end of the refrigerating machine 322, the refrigerating machine 322 can continuously and circularly provide the cold energy required by the liquefaction of the carbon dioxide in the liquefier 321.
The top of the product tank 33 is provided with a discharge pipe 341, the discharge pipe 341 is connected to the precooler 31, and the discharge pipe 341 is provided with a discharge valve 3411.
When the carbon dioxide gas treated by the filter group 23 enters the precooler 31, the discharge valve 3411 is opened, the gas and liquid coexist in the product tank 311, and the gas-phase carbon dioxide in the product tank 311 is delivered to the precooler 31, and because the temperature of the gas-phase carbon dioxide in the product tank 311 is low, the temperature of the carbon dioxide from the filter group 23 can be reduced, so that new impurity gas is not introduced, and the load of the subsequent refrigerator 31 during operation can be reduced.
Further, the vaporization heating device 13 is connected to the bottom of the raw material tank 11 through a first branch pipe 1301.
The carbon dioxide heated by the heater 132 flows back to the bottom of the raw material tank 11 through the first branch pipe 1301, so that the heat of the carbon dioxide gas can be gradually transferred upward from the bottom of the raw material tank 11, and the raw material liquid carbon dioxide in the raw material tank 11 can be more sufficiently heated, thereby better accelerating the separation between the light component and the heavy component in the raw material carbon dioxide.
The technical principle of the present invention is described above with reference to specific embodiments. The description is made for the purpose of illustrating the principles of the invention and should not be construed in any way as limiting the scope of the invention. Based on the explanations herein, those skilled in the art will be able to conceive of other embodiments of the present invention without any inventive effort, which would fall within the scope of the present invention.
Claims (8)
1. A system for purifying carbon dioxide, comprising: comprises a raw material tank, a low-temperature liquid pump, a vaporization heating device, a drying bed group, an adsorption bed group, a filter group, a precooler, a liquefaction device and a product tank;
the output end of the raw material tank is communicated with the input end of the low-temperature liquid pump, and the top of the raw material tank is provided with an emptying pipe;
the output end of the low-temperature liquid pump is communicated with the input end of the vaporization heating device;
the output end of the vaporization heating device is provided with a first branch pipe and a second branch pipe, the vaporization heating device is communicated to the raw material tank through the first branch pipe, the vaporization heating device is communicated to the input end of the drying bed group through the second branch pipe, the first branch pipe is provided with a first valve, and the second branch pipe is provided with a second valve;
the output end of the drying bed group is communicated with the input end of the adsorption bed group;
the input end of the adsorption bed group is communicated with the input end of the filter group;
the output end of the filter group is communicated to the input end of the precooler;
the output end of the precooler is communicated to the input end of the liquefaction device;
the output end of the liquefaction device is communicated to the input end of the product tank.
2. A system for purifying carbon dioxide as claimed in claim 1, wherein: the vaporization heating device comprises a vaporizer and a heater;
the output end of the vaporizer is communicated with the input end of the heater.
3. A system for purifying carbon dioxide as claimed in claim 1, wherein: the drying bed group at least comprises two drying beds connected in parallel, and the input end and the output end of each drying bed are provided with drying valves.
4. A system for purifying carbon dioxide as claimed in claim 1, wherein: the adsorption bed group at least comprises two adsorption beds which are connected in parallel, and the input end and the output end of each adsorption bed are respectively provided with an adsorption valve.
5. A system for purifying carbon dioxide as claimed in claim 1, wherein: the filter group at least comprises two groups of filters connected in parallel, the number of the filters connected in series in each group of filters is at least two, and the input end and the output end of each group of filters are respectively provided with a filtering valve.
6. A system for purifying carbon dioxide as claimed in claim 1, wherein: the liquefaction device comprises a liquefier and a refrigerator;
the output end of the refrigerator is communicated to the refrigeration input end of the liquefier, and the refrigeration output end of the liquefier is communicated to the input end of the refrigerator.
7. A system for purifying carbon dioxide as claimed in claim 1, wherein: and the top of the product tank is provided with a discharge pipe which is communicated to the precooler, and the discharge pipe is provided with a discharge valve.
8. A system for purifying carbon dioxide as claimed in claim 1, wherein: the vaporization heating device is communicated to the bottom of the raw material tank through a first branch pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921286129.8U CN210340345U (en) | 2019-08-08 | 2019-08-08 | Carbon dioxide's purification system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921286129.8U CN210340345U (en) | 2019-08-08 | 2019-08-08 | Carbon dioxide's purification system |
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| Publication Number | Publication Date |
|---|---|
| CN210340345U true CN210340345U (en) | 2020-04-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921286129.8U Withdrawn - After Issue CN210340345U (en) | 2019-08-08 | 2019-08-08 | Carbon dioxide's purification system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110371976A (en) * | 2019-08-08 | 2019-10-25 | 广东华特气体股份有限公司 | A kind of purification system of carbon dioxide |
-
2019
- 2019-08-08 CN CN201921286129.8U patent/CN210340345U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110371976A (en) * | 2019-08-08 | 2019-10-25 | 广东华特气体股份有限公司 | A kind of purification system of carbon dioxide |
| CN110371976B (en) * | 2019-08-08 | 2024-02-06 | 广东华特气体股份有限公司 | Purification system of carbon dioxide |
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