CN211262810U - General aviation oil storage tank takes pressure sample airtight protector - Google Patents
General aviation oil storage tank takes pressure sample airtight protector Download PDFInfo
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- CN211262810U CN211262810U CN201922078052.1U CN201922078052U CN211262810U CN 211262810 U CN211262810 U CN 211262810U CN 201922078052 U CN201922078052 U CN 201922078052U CN 211262810 U CN211262810 U CN 211262810U
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- storage tank
- sampling
- sampling port
- telescopic pipe
- flange
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Abstract
The utility model discloses a general aviation oil storage tank pressurized sampling airtight protection device; the sampling port is arranged at the top of the storage tank and is kept connected with the storage tank through a flange; the upper part of the telescopic pipe is well connected with a flange at the lower part of the sampling port through a flange connecting piece, and the connecting piece and a gasket at the flange are fastened in a laminating way to ensure good air tightness; the upper end of the telescopic pipe is connected with the sampling port through a sampling port connecting piece, and the lower end of the telescopic pipe is connected with the buoyancy module; the inner supporting structure is made of rigid materials, is arranged in the telescopic pipe, the upper portion of the inner supporting structure is welded with the sampling port flange, and the lower portion of the inner supporting structure extends to the bottom of the storage tank. The utility model discloses can solve the technical problem that the high integration sled dress aviation fuel storage tank that uses in general aviation carries out airtight sample under the inert gas protective action, install this airtight sampling device additional after, general aviation fuel storage tank can realize realizing regular sample and the level measurement to liquid in the jar through conventional sample connection under the lossless prerequisite of inert gas.
Description
Technical Field
The utility model relates to an oil storage tank gas tightness protection field, specifically the airtight protector of sample is pressed in general aviation oil storage tank area.
Background
With the continuous promotion of the strong national strategy of civil aviation, the construction of general aviation aircrafts and general aviation airports in China is not made, and the vigorous aviation oil demand is promoted. Different from the fixed airport security mode of commercial aviation, general aviation has the characteristics of many take-off and landing points and changeable directions, and needs more flexible aviation fuel guarantee. Therefore, the movable aviation fuel storage tank with high integration level is widely applied to the general aviation storage tank. In order to reduce the evaporation loss of aviation fuel and ensure safety, inert gas protection technology is mostly adopted in the storage tanks.
In order to ensure flight safety, aviation fuel has high requirements on quality assurance measures, and oil in a tank needs to be sampled regularly and the liquid level height in the tank needs to be measured so as to obtain the quality index and the real liquid level of stored oil. However, after the storage tank is sealed by the inert gas, the gas phase space in the storage tank is filled with the mixture of the inert gas and the oil gas, once the sampling port is opened for operation, the gas is directly discharged into the atmosphere, the loss of the oil and the inert gas and environmental pollution are caused, and potential safety hazards exist. And simple adoption hard tubular column is to the sample connection downwardly extending, though can realize gaseous inclosed purpose, can't guarantee the homogeneous mixing of oil in the tubular column and the jar interior oil, directly influences the validity of sample result.
Based on this, the utility model provides a can carry out storage tank oil sample and level measurement's airtight protector under the condition of inert gas protection system normal work, through the tubulose protection device who floats along with the liquid level, under the condition that the sample connection was opened, still can guarantee atmospheric environment and jar interior inert gas's effective isolation. Meanwhile, the sampling tube and the supporting system thereof float along with the liquid level ensure the sampling of any position under the liquid level in the tank and the sufficient mixing of the obtained sample and the oil in the tank, and meet the sampling requirement on the oil chemical analysis in the relevant specifications.
The prior art has the following disadvantages:
firstly, a special pressurized sampling airtight protection device for an aviation oil storage tank is not available at present, and the existing sampling device is designed for sampling under normal pressure and cannot meet the sampling requirement of an inert gas protection system during working;
secondly, the conventional sampling device is designed aiming at the sampling requirement under the condition that the pressure in the storage tank is balanced with the atmospheric pressure, the sampling port is directly opened under the condition that the inert gas protection system works, the mixture of the oil vapor and the inert gas in the storage tank can be dissipated under the action of the pressure, so that the oil loss and the environmental pollution are caused, and meanwhile, the volatile oil vapor can also cause serious accidents such as combustion, explosion and the like;
the existing large-scale storage tank fixed-point sampling device can realize sampling outside the tank through a sampling pipe by a multipoint sampling device which is arranged inside the large tank and floats along with the liquid level, and although the purposes of tightness and any multipoint sampling can be met, the system has a complex structure and high manufacturing cost, and is not suitable for a movable aviation oil storage tank in technical and economic aspects;
the existing airtight sampling device for the aviation fuel tank truck aims at sampling in a flow pipeline before aviation fuel filling, the sampling operation requirement of the airtight sampling device is greatly different from that of a general aviation movable storage tank in a storage environment, and the used sampling devices are completely different and have no universality and portability;
the existing sampling mode that the lower end of the sampling port is directly extended to the bottom of the tank by adopting a hard pipe column can ensure good air tightness, but oil in the pipe and oil in the tank cannot be sufficiently mixed in a flowing way, and the taken out sample cannot represent the real quality of the oil in the tank and cannot meet the requirement on the uniformity of the sample in relevant specifications.
SUMMERY OF THE UTILITY MODEL
Therefore, in order to solve the above-mentioned deficiency, the utility model provides a general aviation oil storage tank pressurized sampling airtight protection device; the utility model discloses can solve the technical problem that the high integration sled dress aviation fuel storage tank that uses in general aviation carries out airtight sample under the inert gas protective action, install this airtight sampling device additional after, general aviation fuel storage tank can realize realizing regular sample and the level measurement to liquid in the jar through conventional sample connection under the lossless prerequisite of inert gas.
The utility model discloses a realize like this, construct a general aviation oil storage tank and press airtight protector of sample, its characterized in that: the device is provided with a sampling port, a sampling port connecting piece, a telescopic pipe, an internal supporting structure and a buoyancy module; the sampling port is arranged at the top of the storage tank, is of a detachable structure and is connected with the storage tank through a flange; the upper part of the telescopic pipe is well connected with a flange at the lower part of the sampling port through a flange connecting piece, and the connecting piece and a gasket at the flange are fastened in a laminating way to ensure good air tightness; the telescopic pipe is made of flexible materials, the upper end of the telescopic pipe is connected with the sampling port through a sampling port connecting piece, the lower end of the telescopic pipe is connected with the buoyancy module, and the telescopic pipe and the accessories are made of oil-resistant materials or inert materials of aviation oil; the internal supporting structure is made of rigid materials and arranged in the telescopic pipe, the upper part of the internal supporting structure is welded with the flange of the sampling port, the lower part of the internal supporting structure extends to the bottom of the storage tank, and the internal supporting structure and the bottom plate of the storage tank keep a distance of 20-40 cm.
According to general aviation oil storage tank area is pressed airtight protector of sample, its characterized in that: the internal supporting structure is in a cylindrical shape and is formed by rigidly connecting 4-6 rod pieces vertical to the direction of the sampling opening and a plurality of circular rings from top to bottom.
According to general aviation oil storage tank area is pressed airtight protector of sample, its characterized in that: the buoyancy module consists of 2-3 floating balls or floating blocks, is in good rigid connection with the outer side of the bottom of the telescopic pipe and keeps floating up and down along with the liquid level, and the floating balls and the floating blocks are made of materials which do not react with aviation fuel.
The utility model has the advantages of as follows: the utility model discloses have following advantage and beneficial effect after improving:
firstly, a sampling port can be directly opened to carry out oil sampling under the condition that an inert gas protection system of an aircraft oil storage tank works normally;
secondly, the sampling port can be directly opened under the condition that the inert gas protection system of the aviation oil storage tank works normally, and a manual gauge is put in to measure the liquid level of oil in the tank and perform other operations;
the lower end of the device floats up and down along with the change of the liquid level of the oil material in the storage tank, so that the sampling operation at any point below the liquid level can be realized;
the device can maintain the complete isolation of the upper gas phase space in the storage tank from the external atmospheric environment, thereby completely eliminating the escape of the mixed gas in the storage tank into the atmosphere caused by the opening of the sampling port; various problems such as combustion explosion, inhalation poisoning, environmental pollution, material loss and the like which can be caused by the problems are prevented;
the internal supporting structure is matched with the telescopic pipe for use, so that the flexible telescopic pipe can still keep a standard shape under the action of micro-positive pressure of an inert gas protection system in the tank, and a normal operation channel is provided;
the internal supporting structure is made of a rod and an annular rigid material, a closed area cannot be formed, good support is provided, good flowing and mixing of oil in the area and other oil in the tank are not affected at all, and oil storage safety and sampling uniformity can be fully guaranteed;
the device has the advantages of simple structure, convenient operation, no need of regular maintenance after normal installation, no mechanical moving parts, high reliability, long service life and low cost.
Drawings
FIG. 1 is a schematic view of the pressurized sampling airtight protection device for an aviation fuel storage tank of the present invention;
FIG. 2 is a schematic view of the arrangement state 1 of buoyancy modules at the bottom of a telescopic pipe;
figure 3 is a schematic view of the arrangement 2 of buoyancy modules at the bottom of the telescopic tube.
Wherein: 1 quick-opening sampling opening, 2 sampling opening connecting pieces, 3 telescopic pipes, 4 internal supporting structures, 5 buoyancy modules and 6 storage tank walls.
Detailed Description
The present invention will be described in detail with reference to fig. 1 to 3, and the technical solutions in the embodiments of the present invention will be clearly and completely described, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
The utility model provides a general aviation oil storage tank pressurized sampling airtight protection device through improvement, which can be implemented as follows; the device is provided with a sampling port 1, a sampling port connecting piece 2, an extension tube 3, an internal supporting structure 4 and a buoyancy module 5; the sampling port 1 is arranged at the top of the storage tank, is of a detachable structure, is connected with the storage tank through a flange, is provided with a quick opening device and a sealing piece, and can be quickly opened when needed;
the upper part of the telescopic pipe 3 is well connected with a flange at the lower part of the sampling port 1 through a flange by a sampling port connecting piece 2, and the connecting piece and a gasket at the flange are fastened in a laminating way to ensure good air tightness;
the telescopic pipe 3 is made of flexible materials, the upper end of the telescopic pipe is connected with the sampling port through a sampling port connecting piece, the lower end of the telescopic pipe is connected with the buoyancy module 5, and the telescopic pipe and the accessories are made of oil-resistant materials or inert materials of aviation fuel;
the inner supporting structure 4 is made of rigid materials, is arranged in the telescopic pipe, the upper part of the inner supporting structure is welded with the flange of the sampling port, the lower part of the inner supporting structure extends to the bottom of the storage tank, and the inner supporting structure and the bottom plate of the storage tank keep a distance of 20-40 cm, is in a cylindrical shape and is formed by rigidly connecting 4-6 rod pieces vertical to the direction of the sampling port and a plurality of circular rings from top to bottom;
the buoyancy module 5 can be composed of 2-3 floating balls or floating blocks, and the quantity of the floating balls is changed according to different sizes and qualities during implementation; the telescopic pipe 3 is rigidly connected with the outer side of the bottom of the telescopic pipe well and floats up and down along with the liquid level, and the floating ball and the floating block are both made of materials which do not react with aviation fuel.
A pressurized sampling closed protection method for a general aviation oil storage tank operates according to the following mode;
the sampling port 1 is arranged at the top of the storage tank and can be quickly opened when needed to provide a channel for sampling and liquid level measurement; the telescopic pipe 3 is well connected with the flange of the sampling port through the connecting piece 2 of the sampling port, floats up and down along with the liquid level and can flexibly extend or contract under the action of gravity and buoyancy, so that the lower end of the telescopic pipe 3 is always kept below the liquid level, and the requirement of sampling at any position below the liquid level in the tank is met; because the upper end of the extension tube 3 is well connected and sealed with the flange, as long as the lower end of the extension tube is positioned below the liquid level, the atmosphere and the gas phase space in the tank can be completely isolated, thereby ensuring the good air tightness required by the inert gas protection system; the mass and the buoyancy of the buoyancy module 5 are calculated and experimentally checked, so that the telescopic pipe can be fully stretched by gravity when the liquid level of oil in the tank descends, and the telescopic pipe can be fully extruded by the buoyancy when the liquid level in the tank ascends, and the position of the telescopic pipe 3 is kept; meanwhile, under the action of the buoyancy module 5, only a small part of the lower end of the telescopic pipe is immersed in the oil, so that the amount of liquid in the pipe is very small, the oil in the pipe can not be completely mixed with the oil in the tank in a flowing manner, and the requirement of sampling uniformity is fully met; because the extension tube 3 is made of flexible materials, the micro-positive pressure provided by the inert gas protection system in the gas phase space in the tank can cause the deformation of the extension tube and influence the sampling and liquid level measurement, and the internal supporting structure 4 is made of rigid materials and can play a supporting role in the extension tube to ensure that a sampling channel with standard appearance and enough size is maintained under the action of the weak positive pressure of the inert gas.
The utility model discloses have following advantage and beneficial effect after improving:
firstly, a sampling port can be directly opened to carry out oil sampling under the condition that an inert gas protection system of an aircraft oil storage tank works normally;
secondly, the sampling port can be directly opened under the condition that the inert gas protection system of the aviation oil storage tank works normally, and a manual gauge is put in to measure the liquid level of oil in the tank and perform other operations;
the lower end of the device floats up and down along with the change of the liquid level of the oil material in the storage tank, so that the sampling operation at any point below the liquid level can be realized;
the device can maintain the complete isolation of the upper gas phase space in the storage tank from the external atmospheric environment, thereby completely eliminating the escape of the mixed gas in the storage tank into the atmosphere caused by the opening of the sampling port; various problems such as combustion explosion, inhalation poisoning, environmental pollution, material loss and the like which can be caused by the problems are prevented;
the internal supporting structure is matched with the telescopic pipe for use, so that the flexible telescopic pipe can still keep a standard shape under the action of micro-positive pressure of an inert gas protection system in the tank, and a normal operation channel is provided;
the internal supporting structure is made of a rod and an annular rigid material, a closed area cannot be formed, good support is provided, good flowing and mixing of oil in the area and other oil in the tank are not affected at all, and oil storage safety and sampling uniformity can be fully guaranteed;
the device has the advantages of simple structure, convenient operation, no need of regular maintenance after normal installation, no mechanical moving parts, high reliability, long service life and low cost.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (3)
1. The utility model provides a general aviation oil storage tank takes pressure sample airtight protector which characterized in that: the device is provided with a sampling port (1), a sampling port connecting piece (2), an extension tube (3), an internal supporting structure (4) and a buoyancy module (5); the sampling port (1) is arranged at the top of the storage tank, is of a detachable structure and is kept connected with the storage tank through a flange; the upper part of the telescopic pipe (3) is well connected with a flange at the lower part of the sampling port (1) through a flange by a sampling port connecting piece (2), and the connecting piece and a gasket at the flange are fastened in a laminating way to ensure good air tightness;
the telescopic pipe (3) is made of flexible materials, the upper end of the telescopic pipe is connected with the sampling port (1) through a sampling port connecting piece (2), the lower end of the telescopic pipe is connected with the buoyancy module (5), and the telescopic pipe (3) and accessories are made of oil-resistant materials or aviation oil inert materials; the internal supporting structure (4) is made of rigid materials, is arranged in the telescopic pipe (3), the upper part of the internal supporting structure is welded with the flange of the sampling port, the lower part of the internal supporting structure extends to the bottom of the storage tank, and the internal supporting structure and the bottom plate of the storage tank keep a distance of 20-40 cm.
2. The pressurized sampling airtight protection device for the general aviation oil storage tank as claimed in claim 1, wherein: the internal supporting structure (4) is in a cylindrical shape and is formed by rigidly connecting 4-6 rod pieces vertical to the direction of the sampling opening and a plurality of circular rings from top to bottom.
3. The pressurized sampling airtight protection device for the general aviation oil storage tank as claimed in claim 1, wherein: the buoyancy module (5) consists of 2-3 floating balls or floating blocks, is in good rigid connection with the outer side of the bottom of the telescopic pipe (3), and keeps floating up and down along with the liquid level, and the floating balls and the floating blocks are made of materials which do not react with aviation fuel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922078052.1U CN211262810U (en) | 2019-11-27 | 2019-11-27 | General aviation oil storage tank takes pressure sample airtight protector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922078052.1U CN211262810U (en) | 2019-11-27 | 2019-11-27 | General aviation oil storage tank takes pressure sample airtight protector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211262810U true CN211262810U (en) | 2020-08-14 |
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ID=71960031
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922078052.1U Expired - Fee Related CN211262810U (en) | 2019-11-27 | 2019-11-27 | General aviation oil storage tank takes pressure sample airtight protector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211262810U (en) |
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2019
- 2019-11-27 CN CN201922078052.1U patent/CN211262810U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200814 Termination date: 20211127 |