Online purification system and method for helium filled in aerostat
阅读说明：本技术 一种浮空器内部填充氦气在线纯化系统与方法 (Online purification system and method for helium filled in aerostat ) 是由 杜京纬 陈亮 杜一鸣 张云林 于 2019-12-04 设计创作，主要内容包括：本发明属于氦气纯化领域,公开了一种浮空器内部填充氦气在线纯化系统和方法。本发明的技术方案包括浮空器、第一充放气口、第二充放气口、氦气抽取管路、氦气填充管路和氦气循环设备；通过使用氦气循环设备,将氦气回收纯化及填充的同步进行,并利用实时监控和人工调节保证内部气压动态平衡,实现浮空器锚泊状态下的内部氦气纯化。(The invention belongs to the field of helium purification, and discloses an online purification system and method for filling helium in an aerostat. The technical scheme of the invention comprises an aerostat, a first air charging and discharging port, a second air charging and discharging port, a helium gas extraction pipeline, a helium gas filling pipeline and helium gas circulating equipment; by using helium circulating equipment, helium recovery, purification and filling are synchronously carried out, and the dynamic balance of internal air pressure is ensured by utilizing real-time monitoring and manual regulation, so that the internal helium purification of the aerostat in the anchoring state is realized.)
1. An on-line purification system for helium filled in the interior of an aerostat, the system comprising: the device comprises an aerostat (2), a first air charging and discharging port (3), a second air charging and discharging port (4), a helium extraction pipeline (5), a helium filling pipeline (6) and helium circulating equipment (7);
the first air charging and discharging port and the second air charging and discharging port are positioned on the aerostat, one end of the helium extraction pipeline is connected with the first air charging and discharging port, and the other end of the helium extraction pipeline is connected with the input end of the helium circulating equipment; one end of the helium filling pipeline is connected with the second air charging and discharging port, and the other end of the helium filling pipeline is connected with the output end of the helium circulating equipment.
2. The on-line purification system for helium filled in the interior of the aerostat according to claim 1, wherein: the helium circulating equipment comprises a helium recovery module, a helium purification module and a helium filling module;
the input end of the helium recovery module is used as the input end of helium circulating equipment and is used for recovering the extracted low-purity helium;
the output end of the helium recovery module is connected with the input end of the helium purification module, and the output end of the helium purification module is connected with the input end of the helium filling module; the helium purification module is used for purifying the recovered low-purity helium to obtain high-purity helium;
and the output end of the helium filling module is used as the output end of the helium circulating equipment and used for filling the obtained high-purity helium into the aerostat.
3. The on-line purification system for helium filled in the interior of the aerostat according to claim 2, wherein: the helium filling module is also provided with an input end for connecting an external high-purity helium source.
4. The on-line helium filling purification system inside an aerostat according to claim 1, wherein said system further comprises a monitoring device (1); for monitoring the purity of helium gas inside the aerostat and/or the pressure difference between the air pressure and the atmospheric pressure inside the aerostat.
5. An on-line purification method for helium filled in the interior of an aerostat, which is applied to the system of claims 1-4, and is characterized in that: the method comprises the following steps:
when the aerostat (2) is anchored, the helium circulating equipment (7) is connected with the first air charging and discharging port (3) through a helium extracting pipeline (5) to extract low-purity helium in the aerostat,
the helium circulating equipment (7) is connected with the second charging and discharging port (4) through a helium filling pipeline (6) and is filled with high-purity helium.
6. The on-line purification method for helium filled in the interior of the aerostat according to claim 5, wherein:
the helium recovery module recovers the extracted low-purity helium and transmits the extracted low-purity helium to the helium purification module;
the helium purification module purifies the extracted low-purity helium to obtain high-purity helium, and the high-purity helium is transmitted to the helium filling module;
the helium filling module fills the obtained high-purity helium into the aerostat;
the high-purity helium gas of the helium filling module is from the high-purity helium gas purified by the helium purifying module or an external high-purity helium gas source.
7. The on-line purification method for helium filled in the interior of the aerostat according to claim 5, wherein: the monitoring device monitors the pressure difference between the air pressure and the atmospheric pressure of the aerostat envelope, and adjusts the helium extraction or filling speed according to the pressure difference, so that the pressure difference between the air pressure and the atmospheric pressure of the aerostat envelope is in a safe range.
8. The on-line purification method for helium filled in the interior of the aerostat according to claim 7, wherein:
when the pressure difference is higher than the safety range, the monitoring device adjusts the helium extraction speed to accelerate and/or adjusts the helium filling speed to decelerate;
when the pressure difference is lower than the safe range, the monitoring device adjusts the helium extraction speed to reduce and/or adjusts the helium filling speed to increase.
9. The on-line purification method for helium filled in the interior of the aerostat according to claim 5, wherein: the monitoring device monitors the purity of helium in the aerostat, when the helium is purified to be close to the preset purity, the helium filling and extracting speed is synchronously reduced, and when the helium is purified to be the preset purity, the helium equipment is closed, so that the helium on-line purification is completed.
Technical Field
The invention relates to the field of helium purification, in particular to an online helium purification system and method in an aerostat.
Background
The aerostat comprises aircrafts such as balloons and airship and is an aircraft which is lighter than air in specific gravity and mainly lifts off by virtue of self static buoyancy. The static buoyancy is provided by the internal filling gas. Currently, helium is a commonly used fill gas internationally. For the aerostat filled with helium, the purity of the helium is in direct proportion to the static buoyancy, and the use performance and safety of the aerostat are affected when the purity of the helium is too low.
At present, a recovery and purification method is generally used to ensure the purity of helium filled in the aerostat. The method comprises the steps of completely extracting and recovering helium filled in the aerostat, treating the helium by ground purification equipment, and refilling the helium into the aerostat.
Disclosure of Invention
In order to overcome the defects, the invention provides an online purification system and method for filling helium in an aerostat, which avoid excessive consumption of human resources during recovery of the aerostat on one hand, avoid repeated disassembly and assembly of the aerostat system on the other hand, and avoid mechanical loss and potential safety hazards.
To achieve the above purpose, the technical scheme of the invention is as follows
The first technical scheme is as follows:
an on-line purification system for helium filled in the interior of an aerostat, comprising: the device comprises an
the first air charging and discharging port and the second air charging and discharging port are positioned on the aerostat, one end of the helium extraction pipeline is connected with the first air charging and discharging port, and the other end of the helium extraction pipeline is connected with the input end of the helium circulating equipment; one end of the helium filling pipeline is connected with the second air charging and discharging port, and the other end of the helium filling pipeline is connected with the output end of the helium circulating equipment.
The first technical scheme of the invention has the characteristics and further improvement that:
1. the helium circulating equipment comprises a helium recovery module, a helium purification module and a helium filling module;
the input end of the helium recovery module is used as the input end of helium circulating equipment and is used for recovering the extracted low-purity helium;
the output end of the helium recovery module is connected with the input end of the helium purification module, and the output end of the helium purification module is connected with the input end of the helium filling module; the helium purification module is used for purifying the recovered low-purity helium to obtain high-purity helium;
and the output end of the helium filling module is used as the output end of the helium circulating equipment and used for filling the obtained high-purity helium into the aerostat.
2. The helium filling module is also provided with an input end for connecting an external high-purity helium source.
3. The system further comprises a
The second technical scheme is as follows:
when the
The second technical scheme of the invention is characterized by further improvement as follows:
1, recovering the extracted low-purity helium by a helium recovery module, and transmitting the extracted low-purity helium to a helium purification module;
the helium purification module purifies the extracted low-purity helium to obtain high-purity helium, and the high-purity helium is transmitted to the helium filling module;
the helium filling module fills the obtained high-purity helium into the aerostat;
the high-purity helium gas of the helium filling module is from the high-purity helium gas purified by the helium purifying module or an external high-purity helium gas source.
2, the monitoring device monitors the pressure difference between the air pressure of the air-float capsule and the atmospheric pressure, and adjusts the helium extraction or filling speed according to the pressure difference to ensure that the pressure difference is within a safe range.
3, the air pressure in the aerostat is greater than the atmospheric pressure, so that when the pressure difference is higher than a safety range, the monitoring device accelerates the helium extraction speed and/or slows down the helium filling speed;
when the pressure difference is lower than the safe range, the monitoring device slows down the helium gas extraction speed and/or accelerates the helium gas filling speed.
And 4, the monitoring device can also monitor the helium purity in the aerostat, when the helium is purified to be close to the preset purity, the helium filling and extracting speed is synchronously reduced, and when the helium is purified to be the preset purity, the helium equipment is closed, so that the helium on-line purification is completed.
Compared with the prior art, the invention has the following beneficial effects:
1) the helium on-line purification method reduces the consumption of human resources. For the aerostat, particularly for large and medium aerostats, the human resources required by the implementation of the scheme are only 20% -30% of the human resources required by the disassembly and recovery of the aerostat;
2) the method avoids the loss of the aerostat capsule and the repeated disassembly and assembly of system components.
Drawings
FIG. 1 is a schematic diagram of on-line purification of helium filled in an aerostat;
in the figure, 1 is a monitoring device, 2 is an aerostat, 3 is a first air charging and discharging port, 4 is a second air charging and discharging port, 5 is a helium gas extraction pipeline, 6 is a helium gas filling pipeline, and 7 is helium gas circulating equipment.
Detailed Description
An on-line purification system for helium filled in the interior of an aerostat, as shown in fig. 1, comprises: the device comprises a
the first air charging and discharging port and the second air charging and discharging port are positioned on the aerostat, one end of the helium extraction pipeline is connected with the first air charging and discharging port, and the other end of the helium extraction pipeline is connected with the input end of the helium circulating equipment; one end of the helium filling pipeline is connected with the second air charging and discharging port, and the other end of the helium filling pipeline is connected with the output end of the helium circulating equipment.
When the
And starting a helium recovery module in the helium circulating equipment, purifying the extracted helium by a helium purification module in the circulating equipment, and then starting a helium filling module to fill the purified high-purity helium into the aerostat (without passing through the helium purification module, extracting and recovering the helium in the aerostat and synchronously filling the high-purity helium).
The
The pressure in the aerostat is generally greater than the atmospheric pressure, so that when the pressure difference is higher than a safety range, the helium extraction speed is increased and/or the helium filling speed is reduced; further, the pumping rate is made greater than the filling rate, so that the differential pressure is reduced to a safe range. When the pressure difference is lower than the safety range, the helium gas extraction speed is slowed down and/or the helium gas filling speed is accelerated, and further, the filling speed is made to be higher than the extraction speed, so that the pressure difference is increased to the safety range.
In the whole process, the helium purity in the aerostat is detected through the
The technical scheme of the invention is that helium recycling, purifying and filling are synchronously carried out by using helium circulating equipment, and the dynamic balance of internal air pressure is ensured by utilizing real-time monitoring and manual regulation, so that the internal helium purification of the aerostat in an anchoring state is realized. The method avoids excessive consumption of human resources when the aerostat is recovered, avoids repeated disassembly and assembly of the aerostat system, and avoids mechanical loss and potential safety hazards.
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