CN214597291U - Carbon dioxide production system with ammonia low pressure bucket - Google Patents
Carbon dioxide production system with ammonia low pressure bucket Download PDFInfo
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- CN214597291U CN214597291U CN202022444382.0U CN202022444382U CN214597291U CN 214597291 U CN214597291 U CN 214597291U CN 202022444382 U CN202022444382 U CN 202022444382U CN 214597291 U CN214597291 U CN 214597291U
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- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 title claims abstract description 505
- 229910021529 ammonia Inorganic materials 0.000 title claims abstract description 225
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 title claims abstract description 164
- 229910002092 carbon dioxide Inorganic materials 0.000 title claims abstract description 82
- 239000001569 carbon dioxide Substances 0.000 title claims abstract description 82
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 22
- 239000007788 liquid Substances 0.000 claims abstract description 72
- 230000001105 regulatory effect Effects 0.000 claims description 11
- 230000005611 electricity Effects 0.000 claims description 2
- 230000007547 defect Effects 0.000 abstract description 5
- 238000000746 purification Methods 0.000 abstract description 5
- 239000000126 substance Substances 0.000 abstract description 3
- 239000002699 waste material Substances 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 50
- 238000002309 gasification Methods 0.000 description 9
- 230000007423 decrease Effects 0.000 description 6
- 238000004064 recycling Methods 0.000 description 6
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 4
- 230000008859 change Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 230000008676 import Effects 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 238000000034 method Methods 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
- 230000008569 process Effects 0.000 description 2
- 238000003303 reheating Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 235000014171 carbonated beverage Nutrition 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000020335 dealkylation Effects 0.000 description 1
- 238000006900 dealkylation reaction Methods 0.000 description 1
- 238000006477 desulfuration reaction Methods 0.000 description 1
- 230000023556 desulfurization Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 239000002778 food additive Substances 0.000 description 1
- 235000013373 food additive Nutrition 0.000 description 1
- 238000009920 food preservation Methods 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
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Abstract
The utility model discloses a carbon dioxide production system with ammonia low pressure bucket, which belongs to the field of chemical equipment, in particular to the purification field of carbon dioxide, and aims to solve the defect that the existing liquid carbon dioxide is heated and gasified again when passing through the bottom of an ammonia evaporator to cause the waste of cold energy, comprising an ammonia storage tank, a gas ammonia deicing machine, an ammonia evaporator, a rectifying tower and an ammonia low pressure bucket, wherein the ammonia storage tank is communicated with the ammonia low pressure bucket, the upper part of the ammonia low pressure bucket is communicated with the inlet of the gas ammonia deicing machine, the bottom of the ammonia low pressure bucket is communicated with the ammonia evaporator, the ammonia evaporator is communicated with the upper part of the ammonia low pressure bucket, a first liquid carbon dioxide outlet is communicated with the rectifying tower, liquid ammonia from which the pressure and the temperature are unstable comes from the ammonia storage tank is cached in the ammonia low pressure bucket, the ammonia low pressure bucket stabilizes the liquid ammonia in a constant low pressure and low temperature state, and the carbon dioxide liquefaction is also in a constant temperature and constant pressure state, and cold energy is saved.
Description
Technical Field
The utility model provides a carbon dioxide production system with ammonia low pressure bucket, the utility model belongs to the technical field of chemical industry equipment, concretely relates to production purification technical field of carbon dioxide.
Background
Carbon dioxide is a relatively wide gas food additive, and the quality index of the carbon dioxide is good and bad, which is directly related to the health of people. With the improvement of the living standard of people in China, the demand of food-grade carbon dioxide in the fields of carbonated beverages, food preservation and the like is continuously increased.
In the production process of food-grade liquid carbon dioxide, a stable, continuous and constant cold source is needed when the carbon dioxide is liquefied. Carbon dioxide gas discharged from an upstream chemical plant is connected into a system through a pipeline, and the carbon dioxide gas after precooling, compression, desulfurization, dealkylation and drying enters an ammonia evaporator for liquefaction. Liquid ammonia of the evaporator comes from an ammonia storage tank, the liquid ammonia of the ammonia storage tank enters an ammonia evaporator for gasification through an adjusting valve, carbon dioxide gas exchanges heat with gas ammonia in the evaporator by utilizing the principle that the liquid ammonia absorbs a large amount of heat in the gasification process, the temperature is reduced to about minus 20 ℃, the carbon dioxide gas is gasified into liquid carbon dioxide, the liquefied carbon dioxide enters a rectifying tower for rectification and purification, and the food-grade liquid carbon dioxide is finally obtained.
The existing process has the first defect that liquid ammonia entering an ammonia evaporator comes from a liquid ammonia storage tank, and the pressure of the liquid ammonia storage tank is 1.2Mpa and the temperature of the liquid ammonia storage tank is about 30 ℃ when the liquid ammonia storage tank normally works. Liquid ammonia of the evaporator enters through the regulating valve, the lower part of the evaporator is in a hot ammonia state, the upper part of the evaporator is in a lowest temperature state, and as carbon dioxide gas enters from the upper part of the evaporator and liquid carbon dioxide flows out from the lower part of the evaporator, the liquid carbon dioxide exchanges heat with hot ammonia which just enters the evaporator when passing through the bottom of the evaporator, so that the temperature of the liquid carbon dioxide rises and is gasified, the energy consumption of a refrigeration ice machine is increased, and the electric charge is increased; secondly, the liquid ammonia that gets into the ammonia evaporator comes from the ammonia storage tank, and under operating condition, the pressure of ammonia storage tank can constantly change, and liquid ammonia pressure variation temperature also changes thereupon, directly leads to the liquid ammonia pressure temperature that gets into the ammonia evaporator unstable. Due to unstable pressure and temperature of liquid ammonia entering the ammonia evaporator, the liquefaction effect of carbon dioxide gas is reduced, the unstable liquefaction effect can cause high and low pressure of a system, the operation difficulty is increased, even the overpressure of the system is caused, and safety accidents occur.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a: the utility model provides a carbon dioxide production system with ammonia low pressure bucket to solve above-mentioned current liquid carbon dioxide and heat the gasification once more when ammonia evaporator bottom, lead to the extravagant defect of cold volume.
The utility model adopts the technical scheme as follows: the utility model provides a carbon dioxide production system with ammonia low pressure bucket, includes the ammonia storage tank, the ice maker is removed to gaseous ammonia, the ammonia evaporimeter, the rectifying column still includes ammonia low pressure bucket, the ammonia storage tank through first governing valve with ammonia low pressure bucket intercommunication, the upper portion of ammonia low pressure bucket with the import intercommunication that ice maker was removed to gaseous ammonia, ammonia low pressure bucket bottom through the second governing valve with ammonia evaporimeter intercommunication, the ammonia evaporimeter with the upper portion intercommunication of ammonia low pressure bucket, there is gaseous carbon dioxide import on the upper portion of ammonia evaporimeter, the lower part of ammonia evaporimeter is provided with first liquid carbon dioxide export, first liquid carbon dioxide export with the rectifying column intercommunication.
In the technical scheme of the application, liquid ammonia from an ammonia storage tank at 1.2Mpa and 30 ℃ enters an ammonia low-pressure barrel through a first regulating valve, the upper part of the ammonia low-pressure barrel is communicated with an inlet of a gas ammonia deicing machine, the set suction pressure of the gas ammonia deicing machine is 0.03-0.1Mpa, when the pressure of the ammonia low-pressure barrel is increased, the gas ammonia deicing machine automatically increases and decreases load to ensure that the ammonia low-pressure barrel is kept unchanged at 0.03-0.1Mpa, in the state, the liquid ammonia pressure in the ammonia low-pressure barrel is 0.03-0.1Mpa and the corresponding temperature is-28-25 ℃, the liquid ammonia is kept unchanged, the liquid ammonia in the ammonia low-pressure barrel enters an ammonia evaporator through a second regulating valve to exchange heat with gas carbon dioxide passing through the ammonia evaporator, the gas ammonia after heat absorption and gasification returns to the upper part of the ammonia low-pressure barrel, is sucked and compressed and condensed into liquid ammonia by the gas ammonia deicing machine to return to the ammonia storage tank for recycling, and liquefied carbon dioxide at the bottom of the evaporator flows out of a first liquid carbon dioxide outlet, purifying in a rectifying tower to obtain food-grade liquid carbon dioxide.
In the application, the suction pressure of the gas ammonia deicing machine is set to be 0.03MPa, when the pressure of the ammonia low-pressure barrel rises, the gas ammonia deicing machine automatically increases and decreases the load, the ammonia low-pressure barrel is kept unchanged at 0.03MPa, and under the state, the pressure of liquid ammonia in the ammonia low-pressure barrel is kept unchanged at the corresponding temperature of-28 ℃;
setting suction pressure of 0.1Mpa for the gas ammonia deicing machine, and automatically increasing and decreasing load of the gas ammonia deicing machine when the pressure of the ammonia low-pressure barrel is increased, so as to ensure that the ammonia low-pressure barrel is maintained at 0.1Mpa, and under the state, the pressure of liquid ammonia in the ammonia low-pressure barrel is 0.1Mpa, the corresponding temperature is-25 ℃, and the pressure is kept unchanged;
the gas ammonia deicing machine sets the suction pressure to be 0.06Mpa, when the pressure of the ammonia low-pressure barrel rises, the gas ammonia deicing machine automatically increases and decreases the load, the ammonia low-pressure barrel is kept unchanged at 0.06Mpa, and under the state, the liquid ammonia pressure in the ammonia low-pressure barrel is kept unchanged at the corresponding temperature of minus 26 ℃.
Liquid ammonia with unstable pressure and temperature from an ammonia storage tank is cached in an ammonia low-pressure barrel, the ammonia low-pressure barrel stabilizes the liquid ammonia at a state of low pressure of 0.1Mpa and temperature of-25 ℃, and is not influenced by the pressure and temperature change of the ammonia storage tank, and the liquid ammonia entering an ammonia evaporator is in a constant-temperature and constant-pressure state, so that the carbon dioxide liquefaction is also in a constant-temperature and constant-pressure state, and the defect that the cold quantity is wasted due to reheating gasification of the existing liquid carbon dioxide when the existing liquid carbon dioxide passes through the bottom of the ammonia evaporator is overcome.
Further, ammonia low pressure bucket is connected with first level gauge, be provided with first level sensor on the first level gauge, first level sensor with first governing valve electricity is connected. Come from ammonia storage tank 1.2Mpa, 30 ℃ liquid ammonia gets into ammonia low pressure bucket through first governing valve, and the first governing valve of ammonia is advanced by the first level sensor control on the first level gauge of ammonia low pressure bucket to the ammonia volume of coming from the ammonia storage tank, guarantees that ammonia low pressure bucket liquid level is in the required state.
Further, an outlet of the gas ammonia ice removing machine is communicated with the ammonia storage tank, and a condenser is arranged in the outlet of the gas ammonia ice removing machine. The gas ammonia after heat absorption and gasification returns to the upper part of the ammonia low-pressure barrel, is sucked, compressed and condensed into liquid ammonia by a gas ammonia deicing machine and returns to the liquid storage tank for recycling.
Further, an outlet of the gas ammonia deicing machine is communicated with one side of the upper part of the tower kettle of the rectifying tower.
Furthermore, a liquid ammonia outlet is further formed in one side of the lower portion of the tower kettle of the rectifying tower and communicated with an ammonia storage tank. The liquid carbon dioxide in the tower kettle of the rectifying tower is low in temperature, the gas ammonia discharged from the outlet of the gas ammonia ice remover enters the tower kettle of the rectifying tower through a pipeline to remove heat, so that the impurity gases such as oxygen, nitrogen, hydrogen and the like mixed in the liquid carbon dioxide rise after being heated, and are discharged from the top of the rectifying tower.
Further, a second liquid carbon dioxide outlet is formed in the bottom of the rectifying tower. The second liquid carbon dioxide outlet flows out food-grade liquid carbon dioxide.
Further, a feed inlet is formed in the middle of the rectifying tower, and the first liquid carbon dioxide outlet is communicated with the feed inlet. And the liquid carbon dioxide flowing out of the ammonia evaporator enters a feed inlet in the middle of the rectifying tower for purification.
Furthermore, a reboiler is arranged in a tower kettle of the rectifying tower. And the gas ammonia coming out from the outlet of the gas ammonia deicing machine (without being condensed by a condenser) enters a reboiler in the tower kettle of the rectifying tower through a pipeline, and the heated liquid ammonia in the pipeline is led out through a liquid ammonia outlet and enters a liquid storage tank for recycling.
Furthermore, a second liquid level meter is arranged on a tower kettle of the rectifying tower, and a second liquid level sensor is arranged on the second liquid level meter. And the second liquid level meter is matched with the second liquid level sensor to control the liquid level in the tower kettle.
The ammonia storage tank, the gas ammonia deicing machine, the ammonia evaporator, the rectifying tower, the reboiler, the rectifying tower and other equipment are connected or communicated through conventional pipelines in the field.
To sum up, owing to adopted above-mentioned technical scheme, the beneficial effects of the utility model are that:
1. in the utility model, liquid ammonia from unstable pressure and temperature of the ammonia storage tank is cached in the ammonia low-pressure barrel, and the ammonia low-pressure barrel stabilizes the liquid ammonia in a state of low pressure of 0.1Mpa and temperature of-25 ℃, and is not influenced by the pressure and temperature change of the ammonia storage tank;
2. in the utility model, the liquid ammonia entering the ammonia evaporator is in a constant temperature and constant pressure state, the carbon dioxide liquefaction is also in a constant temperature and constant pressure state, and the pressure of the whole carbon dioxide production system is also kept in a constant pressure state, so that the whole production system is extremely stable and does not need manual adjustment at any time, thereby improving the working efficiency and the production safety;
3. the pressure of liquid ammonia entering the ammonia evaporator is always stable at low pressure, the temperature is always stable at low temperature, the evaporation effect of the ammonia evaporator is increased, the liquefaction speed of carbon dioxide is accelerated, and the yield is increased;
4. the liquid level of the ammonia low-pressure barrel is controlled by a first liquid level sensor on a first liquid level meter to control a first regulating valve for feeding ammonia, so that the liquid level of the ammonia low-pressure barrel is ensured to be in a required state;
5. the second liquid level meter is matched with the second liquid level sensor to control the liquid level in the tower kettle;
6. the utility model discloses compromise the effect of liquid ammonia separator, in order to avoid the ammonia liquid separator liquid level too high, liquid ammonia gets into the ammonia and removes ice maker.
Drawings
Fig. 1 is a schematic diagram of a carbon dioxide production system with an ammonia low pressure tank of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.
Example 1
As shown in fig. 1, a carbon dioxide production system with an ammonia low-pressure barrel comprises an ammonia storage tank, a gaseous ammonia deicing machine, an ammonia evaporator, a rectifying tower and an ammonia low-pressure barrel, wherein the ammonia storage tank is communicated with the ammonia low-pressure barrel through a first regulating valve, the upper part of the ammonia low-pressure barrel is communicated with an inlet of the gaseous ammonia deicing machine, the bottom of the ammonia low-pressure barrel is communicated with the ammonia evaporator through a second regulating valve, the ammonia evaporator is communicated with the upper part of the ammonia low-pressure barrel, a gaseous carbon dioxide inlet is arranged on the upper part of the ammonia evaporator, a first liquid carbon dioxide outlet is arranged on the lower part of the ammonia evaporator, and the first liquid carbon dioxide outlet is communicated with the rectifying tower.
In the technical scheme of the application, liquid ammonia from an ammonia storage tank at 1.2Mpa and 30 ℃ enters an ammonia low-pressure barrel through a first regulating valve, the upper part of the ammonia low-pressure barrel is communicated with an inlet of a gas ammonia deicing machine, the set suction pressure of the gas ammonia deicing machine is 0.03-0.1Mpa, when the pressure of the ammonia low-pressure barrel is increased, the gas ammonia deicing machine automatically increases and decreases load to ensure that the ammonia low-pressure barrel is kept unchanged at 0.03-0.1Mpa, in the state, the liquid ammonia pressure in the ammonia low-pressure barrel is 0.03-0.1Mpa and the corresponding temperature is-28-25 ℃, the liquid ammonia is kept unchanged, the liquid ammonia in the ammonia low-pressure barrel enters an ammonia evaporator through a second regulating valve to exchange heat with gas carbon dioxide passing through the ammonia evaporator, the gas ammonia after heat absorption and gasification returns to the upper part of the ammonia low-pressure barrel, is sucked and compressed and condensed into liquid ammonia by the gas ammonia deicing machine to return to the ammonia storage tank for recycling, and liquefied carbon dioxide at the bottom of the evaporator flows out of a first liquid carbon dioxide outlet, purifying in a rectifying tower to obtain food-grade liquid carbon dioxide.
In the application, the suction pressure of the gas ammonia deicing machine is set to be 0.03MPa, when the pressure of the ammonia low-pressure barrel rises, the gas ammonia deicing machine automatically increases and decreases the load, the ammonia low-pressure barrel is kept unchanged at 0.03MPa, and under the state, the pressure of liquid ammonia in the ammonia low-pressure barrel is kept unchanged at the corresponding temperature of-28 ℃;
setting suction pressure of 0.1Mpa for the gas ammonia deicing machine, and automatically increasing and decreasing load of the gas ammonia deicing machine when the pressure of the ammonia low-pressure barrel is increased, so as to ensure that the ammonia low-pressure barrel is maintained at 0.1Mpa, and under the state, the pressure of liquid ammonia in the ammonia low-pressure barrel is 0.1Mpa, the corresponding temperature is-25 ℃, and the pressure is kept unchanged;
the gas ammonia deicing machine sets the suction pressure to be 0.06Mpa, when the pressure of the ammonia low-pressure barrel rises, the gas ammonia deicing machine automatically increases and decreases the load, the ammonia low-pressure barrel is kept unchanged at 0.06Mpa, and under the state, the liquid ammonia pressure in the ammonia low-pressure barrel is kept unchanged at the corresponding temperature of minus 26 ℃.
Liquid ammonia with unstable pressure and temperature from an ammonia storage tank is cached in an ammonia low-pressure barrel, the ammonia low-pressure barrel stabilizes the liquid ammonia at a state of low pressure of 0.1Mpa and temperature of-25 ℃, and is not influenced by the pressure and temperature change of the ammonia storage tank, and the liquid ammonia entering an ammonia evaporator is in a constant-temperature and constant-pressure state, so that the carbon dioxide liquefaction is also in a constant-temperature and constant-pressure state, and the defect that the cold quantity is wasted due to reheating gasification of the existing liquid carbon dioxide when the existing liquid carbon dioxide passes through the bottom of the ammonia evaporator is overcome.
Example 2
As shown in fig. 1, on the basis of embodiment 1, the ammonia low-pressure tank is connected with a first liquid level meter, and a first liquid level sensor is arranged on the first liquid level meter and electrically connected with the first regulating valve. Come from ammonia storage tank 1.2Mpa, 30 ℃ liquid ammonia gets into ammonia low pressure bucket through first governing valve, and the first governing valve of ammonia is advanced by the first level sensor control on the first level gauge of ammonia low pressure bucket to the ammonia volume of coming from the ammonia storage tank, guarantees that ammonia low pressure bucket liquid level is in the required state.
Example 3
As shown in fig. 1, based on embodiment 1, an outlet of the gaseous ammonia de-icing machine is communicated with the ammonia storage tank, and a condenser is arranged in the outlet of the gaseous ammonia de-icing machine. The gas ammonia after heat absorption and gasification returns to the upper part of the ammonia low-pressure barrel, is sucked, compressed and condensed into liquid ammonia by a gas ammonia deicing machine and returns to the liquid storage tank for recycling.
Example 4
As shown in fig. 1, based on example 1, the outlet of the gaseous ammonia de-icing machine is communicated with the upper side of the tower bottom of the rectifying tower.
Example 5
As shown in fig. 1, on the basis of embodiment 1, a liquid ammonia outlet is further disposed on one side of the lower portion of the column bottom of the rectifying column, and the liquid ammonia outlet is communicated with an ammonia storage tank. The liquid carbon dioxide in the tower kettle of the rectifying tower is low in temperature, the gas ammonia discharged from the outlet of the gas ammonia ice remover enters the tower kettle of the rectifying tower through a pipeline to remove heat, so that the impurity gases such as oxygen, nitrogen, hydrogen and the like mixed in the liquid carbon dioxide rise after being heated, and are discharged from the top of the rectifying tower.
Example 6
As shown in fig. 1, in addition to example 1, the bottom of the rectifying tower is provided with a second liquid carbon dioxide outlet. The second liquid carbon dioxide outlet flows out food-grade liquid carbon dioxide.
Example 7
As shown in fig. 1, on the basis of embodiment 1, a feed inlet is arranged in the middle of the rectifying tower, and the first liquid carbon dioxide outlet is communicated with the feed inlet. And the liquid carbon dioxide flowing out of the ammonia evaporator enters a feed inlet in the middle of the rectifying tower for purification.
Example 8
As shown in fig. 1, in addition to example 1, a reboiler was provided in the column bottom of the rectifying column. And the gas ammonia discharged from the outlet of the gas ammonia deicing machine enters a reboiler in a tower kettle of the rectifying tower through a pipeline, and the heated liquid ammonia in the pipeline is led out through a liquid ammonia outlet and enters a liquid storage tank for recycling.
Example 9
As shown in fig. 1, in addition to example 1, a second liquid level meter is provided on the column bottom of the rectifying column, and a second liquid level sensor is provided on the second liquid level meter. And the second liquid level meter is matched with the second liquid level sensor to control the liquid level in the tower kettle.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (9)
1. The utility model provides a carbon dioxide production system with ammonia low pressure bucket, includes ammonia storage tank, and the gas ammonia removes ice maker, ammonia evaporator, rectifying column, its characterized in that: the ammonia storage tank is communicated with the ammonia low-pressure barrel through a first regulating valve, the upper portion of the ammonia low-pressure barrel is communicated with an inlet of the gas ammonia deicing machine, the bottom of the ammonia low-pressure barrel is communicated with the ammonia evaporator through a second regulating valve, the ammonia evaporator is communicated with the upper portion of the ammonia low-pressure barrel, a gas carbon dioxide inlet is formed in the upper portion of the ammonia evaporator, a first liquid carbon dioxide outlet is formed in the lower portion of the ammonia evaporator, and the first liquid carbon dioxide outlet is communicated with the rectifying tower.
2. A carbon dioxide production system with low pressure barrel of ammonia according to claim 1 characterized by: the ammonia low pressure bucket is connected with first level gauge, be provided with first level sensor on the first level gauge, first level sensor with first governing valve electricity is connected.
3. A carbon dioxide production system with low pressure barrel of ammonia according to claim 1 characterized by: the outlet of the gas ammonia deicing machine is communicated with the ammonia storage tank, and a condenser is arranged in the outlet of the gas ammonia deicing machine.
4. A carbon dioxide production system with low pressure barrel of ammonia according to claim 1 characterized by: and an outlet of the gas ammonia deicing machine is communicated with one side of the upper part of the tower kettle of the rectifying tower.
5. A carbon dioxide production system with low pressure barrel of ammonia according to claim 4 wherein: and a liquid ammonia outlet is also formed in one side of the lower part of the tower kettle of the rectifying tower and is communicated with an ammonia storage tank.
6. A carbon dioxide production system with low pressure barrel of ammonia according to claim 1 characterized by: and a second liquid carbon dioxide outlet is formed in the bottom of the rectifying tower.
7. A carbon dioxide production system with low pressure barrel of ammonia according to claim 1 characterized by: the middle part of rectifying column is provided with the feed inlet, first liquid carbon dioxide export with the feed inlet intercommunication.
8. A carbon dioxide production system with low pressure barrel of ammonia according to claim 1 characterized by: a reboiler is arranged in a tower kettle of the rectifying tower.
9. A carbon dioxide production system with low pressure barrel of ammonia according to claim 1 characterized by: and a second liquid level meter is arranged on a tower kettle of the rectifying tower, and a second liquid level sensor is arranged on the second liquid level meter.
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| CN202022444382.0U CN214597291U (en) | 2020-10-28 | 2020-10-28 | Carbon dioxide production system with ammonia low pressure bucket |
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| CN202022444382.0U CN214597291U (en) | 2020-10-28 | 2020-10-28 | Carbon dioxide production system with ammonia low pressure bucket |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A carbon dioxide production system with an ammonia low-pressure tank Granted publication date: 20211105 Pledgee: Bank of China Limited Lanzhou Xigu center sub branch Pledgor: SHAANXI YULONG GAS Co.,Ltd. Registration number: Y2024620000007 |