CN109665080B - Air purification system of underwater aircraft - Google Patents
Air purification system of underwater aircraft Download PDFInfo
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- CN109665080B CN109665080B CN201910074551.5A CN201910074551A CN109665080B CN 109665080 B CN109665080 B CN 109665080B CN 201910074551 A CN201910074551 A CN 201910074551A CN 109665080 B CN109665080 B CN 109665080B
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- heat exchanger
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- stage heat
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63G—OFFENSIVE OR DEFENSIVE ARRANGEMENTS ON VESSELS; MINE-LAYING; MINE-SWEEPING; SUBMARINES; AIRCRAFT CARRIERS
- B63G8/00—Underwater vessels, e.g. submarines; Equipment specially adapted therefor
- B63G8/36—Adaptations of ventilation, e.g. schnorkels, cooling, heating, or air-conditioning
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- Aviation & Aerospace Engineering (AREA)
- Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)
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Abstract
The invention discloses an air purification system of an underwater vehicle, which comprises a liquid oxygen storage tank, a second-stage heat exchanger, a first-stage heat exchanger, a compressor, a cooler, a dryer, a filter, a first-stage gas-liquid separator, a second-stage gas-liquid separator, a power generation device, a throttle valve and an electrolytic bath; the liquid oxygen storage tank is sequentially connected with the second-stage heat exchanger and the first-stage heat exchanger through pipelines, the second-stage heat exchanger and the first-stage heat exchanger are respectively connected with the second-stage heat exchanger and the first-stage heat exchanger, the compressor is sequentially connected with the cooler, the dryer and the filter through pipelines, and the power generation device is respectively connected with the liquid oxygen storage tank and the compressor. The invention mainly comprises a heat exchanger, a compressor, a gas-liquid separator and the like, and has the advantages of simple structure, good purification effect, reliability and the like.
Description
Technical Field
The invention relates to an underwater vehicle, in particular to an air purification system of the underwater vehicle.
Background
The underwater vehicle is a limited closed space, pollutants are continuously accumulated along with the prolonging of the submerging time, and the atmospheric environment of the cabin is continuously deteriorated. According to the actual measurement data of submarines at home and abroad, the cabin atmosphere composition is very complex. The harmful gas contains a large amount of inorganic substances and organic substances in addition to CO 2. Inorganic substances include H2, CO, NO2, SO2, NH3 and the like, and organic substances include aliphatic hydrocarbons, aromatic hydrocarbons, halogenated hydrocarbons and the like. The military GC-MS technology in the United kingdom sea has been reported to qualitatively analyze up to 195 organic pollutants. The submarine cabin environment is closely related to the work and life of a sailor, is a result of long-term human-machine-environment interaction, and belongs to a settlement environment. The compartments have a limited capacity to contain contaminants and air pollution in any one compartment can compromise the entire boat.
At present, the air purification of the underwater navigation device is realized by combining concentration and fixed-point removal, H2, CO and the like are removed at fixed points by adopting special filters, a large amount of organic pollutants and uncertain gases are removed in a concentration manner, and the purification effect is not ideal because harmful components are very complex.
Disclosure of Invention
The invention aims to provide an air purification system of an underwater vehicle, which has an ideal purification effect and is simple to operate and control.
In order to achieve the purpose, the technical solution of the invention is as follows:
the invention relates to an air purification system of an underwater vehicle, which comprises a liquid oxygen storage tank, a second-stage heat exchanger, a first-stage heat exchanger, a compressor, a cooler, a dryer, a filter, a first-stage gas-liquid separator, a second-stage gas-liquid separator, a power generation device, a throttle valve and an electrolytic bath;
the liquid oxygen storage tank is connected with a first inlet of the second-stage heat exchanger through a pipeline, one outlet of the second-stage heat exchanger is connected with one inlet of the first-stage heat exchanger through a pipeline, the other outlet of the second-stage heat exchanger is connected with the second-stage gas-liquid separator through a pipeline, a throttle valve is arranged on the pipeline connecting the second-stage heat exchanger and the second-stage gas-liquid separator, the outlet of the second-stage gas-liquid separator is connected with a second inlet of the second-stage heat exchanger through a pipeline,
an outlet of the first-stage gas-liquid separator is connected with a third inlet of the second-stage heat exchanger through a pipeline, an inlet of the first-stage gas-liquid separator is connected with the first-stage heat exchanger through a pipeline, and an outlet of the first-stage heat exchanger outwards conveys clean air and oxygen; the inlet of the compressor sucks the cabin atmosphere, the outlet of the compressor is sequentially connected with the cooler, the dryer and the filter through pipelines, and the outlet of the filter is connected with the other inlet of the first-stage heat exchanger;
the power generation device comprises a semiconductor power generation assembly, a cold end heat exchanger and a hot end heat exchanger, wherein the cold end heat exchanger is connected with a liquid oxygen outlet pipeline of a liquid oxygen storage tank through a pipeline, the hot end heat exchanger is connected with an exhaust port of a compressor through a pipeline, and the semiconductor power generation assembly extends into the electrolytic cell.
The invention relates to an underwater vehicle air purification system based on liquid oxygen cold energy utilization, which comprises the following components: the closed cabin atmosphere air purification system utilizing the cold energy is divided into two stages of liquefaction and separation according to the difference of the boiling points of inorganic matters and organic matters of harmful gases, and meanwhile, the precious regenerated oxygen and fuel hydrogen can be obtained by generating power through low-temperature semiconductor temperature difference and electrolyzing water to prepare oxygen.
After the scheme is adopted, the invention has the following advantages:
1. the invention uses the liquid oxygen which can be reserved as the only energy source to remove the harmful gas inorganic matters and organic matters in the closed cabin and simultaneously provide the regenerated oxygen and the fuel hydrogen.
2. The invention mainly comprises a heat exchanger, a compressor, a gas-liquid separator and the like, has simple equipment, removes quite complex harmful components by a low-temperature liquefaction method, has ideal purification effect, has the advantages of investment saving, simple operation and control, easy and reliable implementation, no need of complex equipment technology or control technology and the like, and solves the key technology to be broken through that the purification effect of the conventional air purification system is not ideal.
3. The liquid oxygen cold energy is fully utilized, and the comprehensive step utilization coefficient of energy is high, which are reflected on air purification and low-temperature difference power generation oxygen production and hydrogen production.
4. In order to fully recover the cold energy and meet the requirement of regenerating oxygen, the invention provides a large temperature zone process of cold energy semiconductor power generation-water electrolysis oxygen generation, and the acquisition of regenerated oxygen opens up a new way for improving the oxygen supply capacity of the underwater vehicle.
5. The invention does not need to consume extra electric energy, heat energy and mechanical energy during operation, the energy sources can be self-sufficient by depending on the system, the operation cost only provides the flowing power consumption of cabin atmosphere air for the compressor, and the operation cost is low.
6. The invention is suitable for removing harmful gas inorganic matters and organic matters in the air of the closed cabin of the underwater vehicle, and can obtain precious regenerated oxygen and fuel hydrogen.
The invention is further described with reference to the following figures and specific embodiments.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Detailed Description
As shown in fig. 1, the invention relates to an air purification system of a submarine aircraft, which comprises a liquid oxygen storage tank 1, a second-stage heat exchanger 2, a first-stage heat exchanger 3, a compressor 4, a cooler 5, a dryer 6, a filter 7, a first-stage gas-liquid separator 8, a second-stage gas-liquid separator 9, a power generation device 10, a throttle valve 11 and an electrolytic tank 12.
The liquid oxygen storage tank 1 is connected with a first inlet of the second-stage heat exchanger 2 through a pipeline, one outlet of the second-stage heat exchanger 2 is connected with one inlet of the first-stage heat exchanger 3 through a pipeline, the other outlet of the second-stage heat exchanger 2 is connected with the second-stage gas-liquid separator 9 through a pipeline, a throttle valve 11 is installed on a connecting pipeline of the second-stage heat exchanger 2 and the second-stage gas-liquid separator, an outlet of the second-stage gas-liquid separator 9 is connected with a second inlet of the second-stage heat exchanger 2 through a pipeline, one outlet of the first-stage gas-liquid separator 8 is connected with a third inlet of the second-stage heat exchanger 2 through a pipeline, an inlet of the first-stage gas-liquid separator 8 is connected with the first-stage heat exchanger 3 through a pipeline, and an; the inlet of the compressor 4 sucks in cabin atmosphere, the outlet of the compressor 4 is sequentially connected with the cooler 5, the dryer 6 and the filter 7 through pipelines, and the outlet of the filter 7 is connected with the other inlet of the first-stage heat exchanger 3.
The power generation device 10 comprises a semiconductor power generation assembly 101, a cold-end heat exchanger 102 and a hot-end heat exchanger 103, wherein the cold-end heat exchanger 102 is connected with a liquid oxygen outlet pipeline of the liquid oxygen storage tank 1 through a pipeline, the hot-end heat exchanger 103 is connected with an exhaust port of the compressor 4 through a pipeline, and the semiconductor power generation assembly 101 extends into the electrolytic tank 12.
The working principle of the invention is as follows:
1. breathing and oxygen supplying: liquid oxygen is pumped from the liquid oxygen storage tank 1 and sequentially flows through the second-stage heat exchanger 2 and the first-stage heat exchanger 3 to be subjected to deep and precooling heat exchange with cabin atmosphere respectively, a high-grade cold source is provided for cabin atmosphere air flowing through the second-stage heat exchanger 2 and the first-stage heat exchanger 3, and oxygen rewarming to cabin temperature is supplied for the breathing of a boatler.
2. Air purification: the atmosphere in the closed cabin is pressurized by a compressor 4, the exhaust gas of the compressor 4 enters a cooler 5 to be cooled by seawater, then enters a dryer 6 for drying and draining water, then flows into a special filter 7 for H2 and CO removal, then enters a first-stage heat exchanger 3 to exchange heat with low-temperature oxygen and clean air from a second-stage heat exchanger 2 to recover the cold energy of the low-temperature oxygen and the clean air, the temperature is reduced, the air flows into a first-stage gas-liquid separator 8 to separate harmful liquid with high boiling point, the residual air then enters a second-stage heat exchanger 2 to exchange heat with liquid oxygen and the clean air from a second-stage gas-liquid separator 9, the temperature is further greatly reduced, the air is decompressed and flashed into the second-stage gas-liquid separator 9 by a throttle valve 11, after the harmful liquid with low boiling point is separated, the clean air flows back to the second-stage heat exchanger 2, providing a cold source for the cabin atmospheric air flowing through the second stage heat exchanger 2 and the first stage heat exchanger 3, respectively.
3. Low-temperature difference power generation and oxygen generation: the cold-end heat exchanger 102 in the power generation device 10 is connected with the liquid oxygen outlet of the liquid oxygen storage tank, the hot-end heat exchanger 103 is connected with the exhaust of the compressor 4, and the semiconductor power generation assembly 101 is in a large temperature range to generate strong electromotive force. At this time, electrolysis will occur in the electrolytic cell 12, and the regenerated oxygen obtained by electrolysis can be used as fuel and can be used for breathing and supplying oxygen after being cooled and dehydrated.
The above description is only a preferred embodiment of the present invention, and therefore should not be taken as limiting the scope of the invention, which is defined by the appended claims and their equivalents and modifications within the scope of the description.
Claims (1)
1. The utility model provides an ware air purification system under water which characterized in that: the system comprises a liquid oxygen storage tank, a second-stage heat exchanger, a first-stage heat exchanger, a compressor, a cooler, a dryer, a filter, a first-stage gas-liquid separator, a second-stage gas-liquid separator, a power generation device, a throttle valve and an electrolytic bath; the liquid oxygen storage tank is connected with a first inlet of the second-stage heat exchanger through a pipeline, one outlet of the second-stage heat exchanger is connected with one inlet of the first-stage heat exchanger through a pipeline, the other outlet of the second-stage heat exchanger is connected with the second-stage gas-liquid separator through a pipeline, a throttle valve is arranged on the pipeline connecting the second-stage heat exchanger and the second-stage gas-liquid separator, the outlet of the second-stage gas-liquid separator is connected with a second inlet of the second-stage heat exchanger through a pipeline, one outlet of the first-stage gas-liquid separator is connected with a third inlet of the second-stage heat exchanger through a pipeline, the inlet of the first-stage gas-liquid separator is connected with the first-stage heat exchanger through a pipeline, and the; the inlet of the compressor sucks the cabin atmosphere, the outlet of the compressor is sequentially connected with the cooler, the dryer and the filter through pipelines, and the outlet of the filter is connected with the other inlet of the first-stage heat exchanger; the power generation device comprises a semiconductor power generation assembly, a cold end heat exchanger and a hot end heat exchanger, wherein the cold end heat exchanger is connected with a liquid oxygen outlet pipeline of a liquid oxygen storage tank through a pipeline, the hot end heat exchanger is connected with an exhaust port of a compressor through a pipeline, and the semiconductor power generation assembly extends into the electrolytic cell.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910074551.5A CN109665080B (en) | 2019-01-25 | 2019-01-25 | Air purification system of underwater aircraft |
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| CN201910074551.5A CN109665080B (en) | 2019-01-25 | 2019-01-25 | Air purification system of underwater aircraft |
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| CN109665080B true CN109665080B (en) | 2020-03-27 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113060264B (en) * | 2021-03-15 | 2022-06-10 | 集美大学 | Thermoelectric life support propulsion system of underwater vehicle |
| CN116853470B (en) * | 2023-05-26 | 2023-12-05 | 大连海事大学 | Air purifying device for submarine cabin and use method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3039274A (en) * | 1958-03-28 | 1962-06-19 | Union Carbide Corp | Process and apparatus for purifying and separating compressed gas mixtures |
| US6106593A (en) * | 1998-10-08 | 2000-08-22 | Air Products And Chemicals, Inc. | Purification of air |
| CN1178038C (en) * | 2001-08-19 | 2004-12-01 | 中国科学技术大学 | Air separator by utilizing cold energy of liquefied natural gas |
| CN100345724C (en) * | 2005-09-30 | 2007-10-31 | 湖南科技大学 | Submarine exhaust-gas treatment process and device |
| CN101036826A (en) * | 2006-03-14 | 2007-09-19 | 陶好训 | Air cleaning system in closed cabin and the control method |
| DE102007006556B4 (en) * | 2007-02-09 | 2012-09-06 | B/E Aerospace Systems Gmbh | Method for emergency oxygen supply in an aircraft |
| CN101997455A (en) * | 2009-08-21 | 2011-03-30 | 中国科学院理化技术研究所 | Semiconductor temperature difference power generation device for cold energy recovery power generation |
| CN206695510U (en) * | 2017-02-24 | 2017-12-01 | 杭州颐氧健康科技有限公司 | Health care gas liquid oxygen is counter to be noted formula and produces and feeder |
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