CN108730759B - Air-cooled carbon dioxide vaporization system and vaporization constant temperature pressure regulating method thereof - Google Patents
Air-cooled carbon dioxide vaporization system and vaporization constant temperature pressure regulating method thereof Download PDFInfo
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- CN108730759B CN108730759B CN201810929907.4A CN201810929907A CN108730759B CN 108730759 B CN108730759 B CN 108730759B CN 201810929907 A CN201810929907 A CN 201810929907A CN 108730759 B CN108730759 B CN 108730759B
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- gas
- carbon dioxide
- heat exchanger
- pressure regulating
- pipeline
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- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 title claims abstract description 130
- 230000001105 regulatory effect Effects 0.000 title claims abstract description 71
- 229910002092 carbon dioxide Inorganic materials 0.000 title claims abstract description 65
- 239000001569 carbon dioxide Substances 0.000 title claims abstract description 65
- 230000008016 vaporization Effects 0.000 title claims abstract description 32
- 238000009834 vaporization Methods 0.000 title claims abstract description 26
- 238000000034 method Methods 0.000 title claims abstract description 19
- 239000007788 liquid Substances 0.000 claims abstract description 47
- 239000006200 vaporizer Substances 0.000 claims abstract description 28
- 239000007789 gas Substances 0.000 claims description 81
- 229910052739 hydrogen Inorganic materials 0.000 claims description 14
- 239000001257 hydrogen Substances 0.000 claims description 14
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 13
- 238000010438 heat treatment Methods 0.000 claims description 9
- 238000001816 cooling Methods 0.000 claims description 5
- 239000000523 sample Substances 0.000 claims description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 125000004435 hydrogen atom Chemical group [H]* 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C7/00—Methods or apparatus for discharging liquefied, solidified, or compressed gases from pressure vessels, not covered by another subclass
- F17C7/02—Discharging liquefied gases
- F17C7/04—Discharging liquefied gases with change of state, e.g. vaporisation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D3/00—Arrangements for supervising or controlling working operations
- F17D3/01—Arrangements for supervising or controlling working operations for controlling, signalling, or supervising the conveyance of a product
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
The air-cooled carbon dioxide vaporization system comprises a liquefied carbon dioxide liquid inlet pipeline, a constant-temperature pressure-regulating vaporizer, a first air cooler, a second air cooler and a gas output pipeline; the liquid outlet of the liquefied carbon dioxide liquid inlet pipeline is connected with the liquid inlet of the constant temperature and pressure regulating vaporizer, the gas outlet of the constant temperature and pressure regulating vaporizer is respectively connected with the gas outlets of the first air cooler and the second air cooler through a first gas pipeline, the gas outlet of the first air cooler is connected with the gas inlet of the gas output pipeline through a second gas pipeline, and the gas outlet of the second air cooler is connected with the gas inlet of the gas output pipeline through a third gas pipeline. The invention also discloses a constant temperature and pressure regulating method of the air-cooled carbon dioxide vaporization system. The invention not only has the functions of constant temperature, pressure regulation and vaporization in the inflation process, but also can improve the utilization rate of liquid carbon dioxide, so that the pipelines and the pressure regulating valve of the carbon dioxide vaporization device can not generate frost and ice blockage, and the vaporization temperature, pressure and flow are in stable and controllable states.
Description
Technical Field
The invention relates to a hydrogen-cooled generator set, in particular to an air-cooled carbon dioxide vaporization system of auxiliary equipment of a hydrogen-cooled generator and a vaporization constant temperature and pressure regulating method thereof.
Background
In a hydrogen-cooled generator, in order to completely replace the hydrogen used internally for cooling, it is necessary to vaporize liquid carbon dioxide into a gaseous state, which is charged into the generator by a hydrogen control device to replace the hydrogen. The existing carbon dioxide vaporization device cannot achieve the constant temperature and pressure regulation function in the inflation process, frosting of an inflation pipeline is caused in the inflation process due to temperature, pressure and other reasons, even the pressure regulating valve in the carbon dioxide vaporizer has ice blockage, the problems of low inflation speed, unstable flow, low gas temperature, large temperature fluctuation and the like are caused, and the maintenance time of generator equipment is prolonged.
Disclosure of Invention
The invention aims to solve the defects in the prior art and provides an air-cooled carbon dioxide vaporization system with quick inflation, constant temperature, no ice blockage and stable inflation rate and a vaporization constant temperature and pressure regulating method thereof.
In order to solve the technical problems, the invention adopts the following technical scheme: the air-cooled carbon dioxide vaporization system comprises a liquefied carbon dioxide liquid inlet pipeline, a constant-temperature pressure-regulating vaporizer, a first air cooler, a second air cooler and a gas output pipeline;
The liquid outlet of the liquefied carbon dioxide liquid inlet pipeline is connected with the liquid inlet of the constant temperature and pressure regulating vaporizer, the gas outlet of the constant temperature and pressure regulating vaporizer is respectively connected with the gas outlets of the first air cooler and the second air cooler through a first gas pipeline, the gas outlet of the first air cooler is connected with the gas inlet of the gas output pipeline through a second gas pipeline, and the gas outlet of the second air cooler is connected with the gas inlet of the gas output pipeline through a third gas pipeline.
The constant temperature pressure regulating vaporizer comprises a container, a controller, a heater, a pressure regulating valve, a first heat exchanger, a second heat exchanger and a temperature sensor, wherein heat conducting oil is contained in the container, a cover plate is arranged at the top of the container, the heater, the pressure regulating valve, the first heat exchanger and the second heat exchanger are all arranged in the container, the inlet end of the first heat exchanger and the outlet end of the second heat exchanger are both extended out of the container, the inlet end of the first heat exchanger is extended out of the container and is connected with a liquid outlet of a liquefied carbon dioxide liquid inlet pipeline, the outlet end of the second heat exchanger is extended out of the container and is connected with an air inlet of a first gas pipeline, the pressure regulating valve is arranged on the lower surface of the cover plate, a control rod of the pressure regulating valve is extended upwards out of the cover plate, the outlet end of the first heat exchanger is connected with the inlet end of the pressure regulating valve, and the inlet end of the second heat exchanger is connected with the outlet end of the pressure regulating valve; the probe of the temperature sensor extends below the surface of the heat-conducting oil in the container; the controller is connected with the heater through a heating control line, and is connected with the temperature sensor through a data line.
The first heat exchanger and the second heat exchanger are respectively arranged on the left side and the right side in the container, and the heater is arranged between the first heat exchanger and the second heat exchanger.
The liquefied carbon dioxide liquid inlet pipeline is sequentially provided with a first manual ball valve, an inlet pressure gauge and an inlet thermometer from a liquid inlet to a liquid outlet.
The first gas pipeline is provided with a safety valve smaller than 0.8 MPa.
The second gas pipeline is provided with a first electromagnetic valve, and two ends of the first electromagnetic valve are connected with a second manual ball valve in parallel.
The third gas pipeline is provided with a second electromagnetic valve, and two ends of the second electromagnetic valve are connected with a third manual ball valve in parallel.
The gas output pipeline is sequentially provided with a pressure reducing valve, an outlet thermometer, an outlet pressure gauge and a fourth manual ball valve from the air inlet to the air outlet.
The constant temperature vaporization pressure regulating method for air cooled carbon dioxide vaporization system includes the following steps,
(1) Starting to operate the constant-temperature pressure-regulating vaporizer, the first air cooler and the second air cooler; the heater in the constant temperature pressure regulating vaporizer heats the heat conducting oil to a set temperature and maintains stability;
(2) The method comprises the steps of conveying carbon dioxide liquid to a liquid inlet of a liquefied carbon dioxide liquid inlet pipeline, sequentially passing through a first manual ball valve, an inlet pressure gauge and an inlet temperature gauge, conveying the liquefied carbon dioxide liquid to a first heat exchanger in a container to exchange heat with heat conduction oil, vaporizing carbon dioxide in the first heat exchanger, regulating output pressure by a pressure regulating valve, regulating the pressure regulating valve by a control rod of the pressure regulating valve, then enabling vaporized carbon dioxide to enter a second heat exchanger, and heating carbon dioxide gas to a set temperature range in the second heat exchanger; the constant temperature pressure regulating vaporizer monitors the temperature of the heat conducting oil in the container in real time through a temperature sensor and transmits data to the controller, the controller controls the heating temperature of the heater, and finally, the heat exchange is completed through the heat conducting oil in the container, the first heat exchanger and the second heat exchanger;
(3) The carbon dioxide gas subjected to pressure regulation and temperature rise through the constant temperature pressure regulation vaporizer passes through a 0.8MPa safety valve on a first gas pipeline, if the pressure is too high, the safety valve is opened for automatic exhaust, and then the heat exchange is carried out through a first air cooler or a second air cooler, so that the difference value between the temperature of the carbon dioxide gas and the ambient temperature is less than or equal to 8 ℃;
(4) The gas subjected to heat exchange by the first air cooler or the second air cooler continuously passes through a pressure reducing valve on a gas output pipeline, the pressure of the carbon dioxide gas is further regulated to be 0.15MPa, and the carbon dioxide gas is output to hydrogen control equipment after passing through an outlet thermometer, an outlet manometer and a fourth manual ball valve, and is charged into a hydrogen cooling generator set under the control of the hydrogen control equipment.
The first air cooler, the first electromagnetic valve and the second manual ball valve in the step (3) are mutually standby with the second air cooler, the second electromagnetic valve and the third manual ball valve; the second manual ball valve is used instead when the first electromagnetic valve fails, and the third manual ball valve is used instead when the second electromagnetic valve fails.
By adopting the technical scheme, the invention has the following originality and beneficial effects:
According to the invention, the pressure regulating valve, the first heat exchanger and the second heat exchanger are all arranged in the metal closed container filled with the heat conduction oil, so that the heat absorption quantity in the carbon dioxide liquid vaporization process and the heat absorption quantity in the process of adjusting the pressure from high pressure to low pressure output can be compensated through the efficient heat transfer of the heat conduction oil, the ice blockage of the pressure regulating valve and the frosting of a pipeline are avoided, and the temperature, the pressure and the flow of carbon dioxide conveyed into a hydrogen control system are ensured to be stable.
The carbon dioxide vaporizing device used at the present stage can generate phenomena of pressure regulating valve ice blockage, pipeline frosting and the like in the inflation process, affects the inflation rate, prolongs the maintenance time of the hydrogen cooling generator, and causes more residual gas in the steel cylinder after inflation, thereby causing gas waste. The invention not only has the functions of constant temperature, pressure regulation and vaporization in the inflation process, but also can improve the utilization rate of liquid carbon dioxide. In the use process, the pipeline of the carbon dioxide vaporizing device and the pressure regulating valve can not generate frost and ice blockage, and the vaporizing temperature, the pressure and the flow are in stable and controllable states.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Detailed Description
As shown in fig. 1, the air-cooled carbon dioxide vaporization system of the invention comprises a liquefied carbon dioxide liquid inlet pipeline 1, a constant temperature pressure regulating vaporizer, a first air cooler 2, a second air cooler 3 and a gas output pipeline 4;
The liquid outlet of the liquefied carbon dioxide liquid inlet pipeline 1 is connected with the liquid inlet of a constant temperature and pressure regulating vaporizer, the gas outlet of the constant temperature and pressure regulating vaporizer is respectively connected with the gas outlets of the first air cooler 2 and the second air cooler 3 through a first gas pipeline 5, the gas outlet of the first air cooler 2 is connected with the gas inlet of the gas output pipeline 4 through a second gas pipeline 6, and the gas outlet of the second air cooler 3 is connected with the gas inlet of the gas output pipeline 4 through a third gas pipeline 7.
The constant temperature pressure regulating vaporizer comprises a container 8, a controller 9, a heater 10, a pressure regulating valve 11, a first heat exchanger 12, a second heat exchanger 13 and a temperature sensor 14, wherein heat conducting oil 15 is contained in the container 8, a cover plate 16 is arranged at the top of the container 8, the heater 10, the pressure regulating valve 11, the first heat exchanger 12 and the second heat exchanger 13 are all arranged in the container 8, the inlet end of the first heat exchanger 12 and the outlet end of the second heat exchanger 13 extend out of the container 8, the inlet end of the first heat exchanger 12 extends out of the container 8 and is connected with a liquid outlet of a liquefied carbon dioxide liquid inlet pipeline 1, the outlet end of the second heat exchanger 13 extends out of the container 8 and is connected with a gas inlet of a first gas pipeline 5, the pressure regulating valve 11 is arranged on the lower surface of the cover plate 16, a control rod of the pressure regulating valve 11 extends out of the cover plate 16 upwards, the outlet end of the first heat exchanger 12 is connected with the inlet end of the pressure regulating valve 11, and the inlet end of the second heat exchanger 13 is connected with the outlet end of the pressure regulating valve 11; the probe of the temperature sensor 14 extends into the container 8 below the liquid level of the heat conducting oil 15; the controller 9 is connected to the heater 10 via a heating control line 17, and the controller 9 is connected to the temperature sensor 14 via a data line 18.
The first heat exchanger 12 and the second heat exchanger 13 are disposed on the left and right sides, respectively, within the vessel 8, and the heater 10 is located between the first heat exchanger 12 and the second heat exchanger 13.
The liquefied carbon dioxide liquid inlet pipeline 1 is provided with a first manual ball valve 19, an inlet pressure gauge 20 and an inlet thermometer 21 from a liquid inlet to a liquid outlet in sequence. Wherein the positions of the inlet pressure gauge 20 and the inlet temperature gauge 21 may be interchanged.
The first gas line 5 is provided with a safety valve 22 of < 0.8 MPa.
The second gas pipeline 6 is provided with a first electromagnetic valve 23, and two ends of the first electromagnetic valve 23 are connected with a second manual ball valve 24 in parallel.
The third gas pipeline 7 is provided with a second electromagnetic valve 25, and the two ends of the second electromagnetic valve 25 are connected with a third manual ball valve 26 in parallel.
The gas output pipeline 4 is provided with a pressure reducing valve 27, an outlet thermometer 28, an outlet pressure gauge 29 and a fourth manual ball valve 30 from the gas inlet to the gas outlet in sequence. Wherein the positions of the outlet thermometer 28 and the outlet manometer 29 may be interchanged.
The constant temperature vaporization pressure regulating method for air cooled carbon dioxide vaporization system includes the following steps,
(1) Starting to operate the constant temperature and pressure regulating vaporizer, the first air cooler 2 and the second air cooler 3; the heater 10 in the constant temperature pressure regulating vaporizer heats the heat conducting oil 15 to a set temperature and maintains stability;
(2) Delivering carbon dioxide liquid to a liquid inlet of a liquefied carbon dioxide liquid inlet pipeline 1, sequentially passing through a first manual ball valve 19, an inlet pressure gauge 20 and an inlet thermometer 21, delivering into a first heat exchanger 12 in a container 8, performing heat exchange with heat conduction oil 15, vaporizing carbon dioxide in the first heat exchanger 12, regulating the output pressure by a pressure regulating valve 11, regulating the pressure regulating valve 11 by a control rod of the pressure regulating valve 11, delivering vaporized carbon dioxide into a second heat exchanger 13, and heating the carbon dioxide gas to a set temperature range in the second heat exchanger 13; the constant temperature pressure regulating vaporizer monitors the temperature of the heat conduction oil 15 in the container 8 in real time through the temperature sensor 14 and transmits data to the controller 9, the controller 9 controls the heating temperature of the heater 10, and finally the heat exchange is completed between the heat conduction oil 15 in the container 8 and the first heat exchanger 12 and the second heat exchanger;
(3) The carbon dioxide gas subjected to pressure regulation and temperature rise through the constant temperature pressure regulation vaporizer passes through the 0.8MPa safety valve 22 on the first gas pipeline 5, if the pressure is too high, the safety valve 22 is opened for automatic exhaust, and then the heat exchange is carried out through the first air cooler 2 or the second air cooler 3, so that the difference value between the carbon dioxide gas temperature and the ambient temperature is less than or equal to 8 ℃;
(4) The gas after heat exchange by the first air cooler 2 or the second air cooler 3 is continuously passed through a pressure reducing valve 27 on a gas output pipeline 4, the pressure of the carbon dioxide gas is further regulated to 0.15MPa, and the carbon dioxide gas is output to hydrogen control equipment after passing through an outlet thermometer 28, an outlet manometer 29 and a fourth manual ball valve 30, and is charged into a hydrogen cooling generator set under the control of the hydrogen control equipment.
The first air cooler 2, the first electromagnetic valve 23 and the second manual ball valve 24 in the step (3) are mutually standby with the second air cooler 3, the second electromagnetic valve 25 and the third manual ball valve 26; the second manual ball valve 24 is replaced when the first solenoid valve 23 fails, and the third manual ball valve 26 is replaced when the second solenoid valve 25 fails.
The present embodiment is not limited in any way by the shape, material, structure, etc. of the present invention, and any simple modification, equivalent variation and modification made to the above embodiments according to the technical substance of the present invention are all included in the scope of protection of the technical solution of the present invention.
Claims (3)
1. Air-cooled carbon dioxide vaporization system, its characterized in that: comprises a liquefied carbon dioxide liquid inlet pipeline, a constant temperature pressure regulating vaporizer, a first air cooler, a second air cooler and a gas output pipeline;
the liquid outlet of the liquefied carbon dioxide liquid inlet pipeline is connected with the liquid inlet of the constant temperature and pressure regulating vaporizer, the gas outlet of the constant temperature and pressure regulating vaporizer is respectively connected with the gas outlets of the first air cooler and the second air cooler through a first gas pipeline, the gas outlet of the first air cooler is connected with the gas inlet of the gas output pipeline through a second gas pipeline, and the gas outlet of the second air cooler is connected with the gas inlet of the gas output pipeline through a third gas pipeline;
The constant temperature pressure regulating vaporizer comprises a container, a controller, a heater, a pressure regulating valve, a first heat exchanger, a second heat exchanger and a temperature sensor, wherein heat conducting oil is contained in the container, a cover plate is arranged at the top of the container, the heater, the pressure regulating valve, the first heat exchanger and the second heat exchanger are all arranged in the container, the inlet end of the first heat exchanger and the outlet end of the second heat exchanger are both extended out of the container, the inlet end of the first heat exchanger is extended out of the container and is connected with a liquid outlet of a liquefied carbon dioxide liquid inlet pipeline, the outlet end of the second heat exchanger is extended out of the container and is connected with an air inlet of a first gas pipeline, the pressure regulating valve is arranged on the lower surface of the cover plate, a control rod of the pressure regulating valve is extended upwards out of the cover plate, the outlet end of the first heat exchanger is connected with the inlet end of the pressure regulating valve, and the inlet end of the second heat exchanger is connected with the outlet end of the pressure regulating valve; the probe of the temperature sensor extends below the surface of the heat-conducting oil in the container; the controller is connected with the heater through a heating control line, and is connected with the temperature sensor through a data line;
The first heat exchanger and the second heat exchanger are respectively arranged on the left side and the right side in the container, and the heater is positioned between the first heat exchanger and the second heat exchanger;
A first manual ball valve, an inlet pressure gauge and an inlet thermometer are sequentially arranged on the liquefied carbon dioxide liquid inlet pipeline from a liquid inlet to a liquid outlet;
A safety valve smaller than 0.8MPa is arranged on the first gas pipeline;
the second gas pipeline is provided with a first electromagnetic valve, and two ends of the first electromagnetic valve are connected with a second manual ball valve in parallel;
a second electromagnetic valve is arranged on the third gas pipeline, and two ends of the second electromagnetic valve are connected with a third manual ball valve in parallel;
The gas output pipeline is sequentially provided with a pressure reducing valve, an outlet thermometer, an outlet pressure gauge and a fourth manual ball valve from the air inlet to the air outlet.
2. The vaporization constant temperature pressure regulating method adopting the air-cooled carbon dioxide vaporization system as claimed in claim 1, characterized in that: comprises the steps of,
(1) Starting to operate the constant-temperature pressure-regulating vaporizer, the first air cooler and the second air cooler; the heater in the constant temperature pressure regulating vaporizer heats the heat conducting oil to a set temperature and maintains stability;
(2) The method comprises the steps of conveying carbon dioxide liquid to a liquid inlet of a liquefied carbon dioxide liquid inlet pipeline, sequentially passing through a first manual ball valve, an inlet pressure gauge and an inlet temperature gauge, conveying the liquefied carbon dioxide liquid to a first heat exchanger in a container to exchange heat with heat conduction oil, vaporizing carbon dioxide in the first heat exchanger, regulating output pressure by a pressure regulating valve, regulating the pressure regulating valve by a control rod of the pressure regulating valve, then enabling vaporized carbon dioxide to enter a second heat exchanger, and heating carbon dioxide gas to a set temperature range in the second heat exchanger; the constant temperature pressure regulating vaporizer monitors the temperature of the heat conducting oil in the container in real time through a temperature sensor and transmits data to the controller, the controller controls the heating temperature of the heater, and finally, the heat exchange is completed through the heat conducting oil in the container, the first heat exchanger and the second heat exchanger;
(3) The carbon dioxide gas subjected to pressure regulation and temperature rise through the constant temperature pressure regulation vaporizer passes through a 0.8MPa safety valve on a first gas pipeline, if the pressure is too high, the safety valve is opened for automatic exhaust, and then the heat exchange is carried out through a first air cooler or a second air cooler, so that the difference value between the temperature of the carbon dioxide gas and the ambient temperature is less than or equal to 8 ℃;
(4) The gas subjected to heat exchange by the first air cooler or the second air cooler continuously passes through a pressure reducing valve on a gas output pipeline, the pressure of the carbon dioxide gas is further regulated to be 0.15MPa, and the carbon dioxide gas is output to hydrogen control equipment after passing through an outlet thermometer, an outlet manometer and a fourth manual ball valve, and is charged into a hydrogen cooling generator set under the control of the hydrogen control equipment.
3. The vaporization constant temperature pressure regulating method according to claim 2, characterized in that: the first air cooler, the first electromagnetic valve and the second manual ball valve in the step (3) are mutually standby with the second air cooler, the second electromagnetic valve and the third manual ball valve; the second manual ball valve is used instead when the first electromagnetic valve fails, and the third manual ball valve is used instead when the second electromagnetic valve fails.
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| CN201810929907.4A CN108730759B (en) | 2018-08-15 | 2018-08-15 | Air-cooled carbon dioxide vaporization system and vaporization constant temperature pressure regulating method thereof |
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| CN108730759B true CN108730759B (en) | 2024-08-06 |
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| CN109708511B (en) * | 2019-02-25 | 2024-09-27 | 苏州料金气体有限公司 | Energy-saving efficient heat exchange balance system |
| CN109681158B (en) * | 2019-03-04 | 2020-11-24 | 中国石油大学(华东) | Device for carbon dioxide flooding technology |
| CN109932182B (en) * | 2019-03-05 | 2020-07-03 | 北京航空航天大学 | Carbon dioxide high enthalpy incoming flow generating device |
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| JP3012260U (en) * | 1994-12-09 | 1995-06-13 | 岩谷産業株式会社 | Carbon dioxide supply device |
| CN201159548Y (en) * | 2008-01-22 | 2008-12-03 | 陈尊山 | Carbon dioxide refrigerating mechanism |
| CN208886378U (en) * | 2018-08-15 | 2019-05-21 | 河南省日立信股份有限公司 | Air-cooled carbon dioxide carburetion system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102478320A (en) * | 2010-11-30 | 2012-05-30 | 天津市奥瑞特环保节能工程技术有限公司 | Overlapping large CO2 refrigeration (heating) unit technology |
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| CN205655524U (en) * | 2016-03-31 | 2016-10-19 | 天津众石睿哲科技有限责任公司 | Utilize domestic energy comprehensive utilization system of carbon dioxide as refrigerant |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JP3012260U (en) * | 1994-12-09 | 1995-06-13 | 岩谷産業株式会社 | Carbon dioxide supply device |
| CN201159548Y (en) * | 2008-01-22 | 2008-12-03 | 陈尊山 | Carbon dioxide refrigerating mechanism |
| CN208886378U (en) * | 2018-08-15 | 2019-05-21 | 河南省日立信股份有限公司 | Air-cooled carbon dioxide carburetion system |
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