CN207848944U - A kind of storage tank and LNG air supply systems - Google Patents
A kind of storage tank and LNG air supply systems Download PDFInfo
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- CN207848944U CN207848944U CN201721835016.XU CN201721835016U CN207848944U CN 207848944 U CN207848944 U CN 207848944U CN 201721835016 U CN201721835016 U CN 201721835016U CN 207848944 U CN207848944 U CN 207848944U
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- storage tank
- tank body
- enclosure space
- control valve
- gas
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Abstract
The utility model is related to LNG air supply system technical fields, a kind of storage tank and LNG air supply systems are disclosed, wherein storage tank includes：Tank body is equipped with output channel；Tank body interconnecting piece covers at the side that the tank body is equipped with output channel, and forms enclosure space with the tank body；The tank body interconnecting piece is equipped with gas inlet duct and gases exit line, and the gas inlet duct is equipped with the first control valve, and the gases exit line is equipped with the second control valve.Above-mentioned storage tank, tank body connect place and outside air and completely cut off, can to avoid the vapor in air at low temperatures frosting and cause pipeline and equipment life in tank body connection place to reduce；And it is possible to which tank body, which is connected the air in place, with gases exit line by gas inlet duct empties and fill full inert gas, to avoid burning after flammable cargo leakage, safety is higher.
Description
Technical field
The utility model is related to LNG air supply system technical fields, more particularly to a kind of storage tank and LNG air supply systems.
Background technology
Liquid or gas cargo mostly use storage tank as storage device when transport, storage.It is transported when cargo reaches
Destination or for other purposes to need exported from storage tank when, cargo will from storage tank along pipeline export, for the ease of control
It makes, is generally fitted with control valve on output channel, some special liquid or gas cargo also need to pacify on output pipe
Fill other equipment, such as gasifier, compressor etc..The involved pipeline of output, valve, other equipment, in use inevitably
It is that there is certain danger there are many kinds of class due to above-mentioned liquid or gas cargo because leakage situation occur in quality or life problems
It is dangerous such as flammable, toxic, be corrosive or the liquid or gas of extremely low temperature, in this case, pipeline, valve, other
Leakage, which occurs, in equipment has considerable risk, it is necessary to and prevent the cargo of leakage from entering wide open space, in order to avoid to the person and wealth
Production damages, and under this demand, the storage tank that has been born connects place.Coordinated using a shell and storage tank carried out by storage tank junction
The space surrounded, be specifically set to storage tank with pipeline, valve one end, it is above-mentioned may leak pipeline, valve, its
His equipment is all placed in storage tank connection place, to, when pipeline, valve or other equipment leak, the cargo of leakage
It can be limited in storage tank connection place, the safety measure being then set excludes safely, and then can be to avoid the expansion of dangerous cargo
Dissipate the generation with accident.
Visible storage tank on current market, it is mostly venting practice that storage tank, which connects the mating safety measure in place, that is, is stored up
Air intake passage, air-out passage and wind turbine are equipped with set by tank junction, with frequency of centainly taking a breath to being changed in storage tank connection place
Gas is divulged information, to have the function that leaked gas cargo security being discharged into specified region.The side in above-mentioned storage tank connection place
Case, since it is desired that often keeping the operation of ventilating system, so energy consumption is higher, while service life of equipment is relatively low；Also, due to
Storage tank connects place and remains air circulation with outside, if cargo is cryogenic object, vapor is easy in cryogenic piping, valve
Frosting on door, equipment can also influence using effect, reduce equipment life, and have security risk.
Utility model content
The utility model discloses a kind of storage tank and LNG air supply systems, the safety for improving storage tank and service life.
In order to achieve the above objectives, the utility model provides following technical scheme：
A kind of storage tank, including：
Tank body is equipped with output channel；
Tank body interconnecting piece covers at the side that the tank body is equipped with output channel, and forms enclosure space with the tank body；
The tank body interconnecting piece is equipped with gas inlet duct and gases exit line, and the gas inlet duct is equipped with the first control
Valve, the gases exit line are equipped with the second control valve.
In above-mentioned storage tank, tank body connection place is formd between tank body interconnecting piece and tank body, one carried out by the tank body junction
Enclosure space completely cuts off with outside air, it can thus be avoided frosting leads to tank to the vapor in air in turn at low temperatures
Body connects the service life reduction on place inner tube road and equipment；Also, tank body interconnecting piece is equipped with the gas communicated with the enclosure space
Therefore tank body can be connected place by inlet pipeline and gases exit line by gas inlet duct with gases exit line
Interior air empties and fills full inert gas；Specifically, since inert gas is not susceptible to chemical reaction therefore can be to avoid
It burns after flammable liquid, gas cargo leakage, safety is more preferable.In conclusion the safety of above-mentioned storage tank is more preferable, use
Longer life expectancy.In addition, the tank body connection place due to above-mentioned storage tank is not necessarily to mechanical ventilator, reliability also higher, energy
Consumption is lower.
Optionally, inert gas is full of in the enclosure space.
Optionally, the inert gas is nitrogen.
Optionally, the air pressure in the enclosure space is higher than standard atmospheric pressure.
Optionally, the air pressure in the enclosure space is 1.1~1.2 standard atmospheric pressures.
Optionally, gas exhausting pipeline is additionally provided on the tank body interconnecting piece, the gas exhausting pipeline is equipped with safety
Valve.
Optionally, pressure sensitive unit is equipped in the enclosure space, for sensing the air pressure in the enclosure space.
Optionally, temperature sensing unit is equipped in the enclosure space, for sensing the temperature in the enclosure space.
Optionally, the temperature sensing unit include positioned at the enclosure space upper area the first temperature sensor and
Positioned at the second temperature sensor of the enclosure space lower area.
Optionally, it is additionally provided with catch tray in the enclosure space, for receiving the liquid leaked in the enclosure space.
Optionally, hazardous gas detection alarm device is additionally provided in the enclosure space.
Optionally, the storage tank further includes control unit, described control unit and the pressure sensitive unit, temperature sensing
Unit and hazardous gas detection alarm device signal connection, for according to the pressure sensitive unit, and/or temperature sensing
The signal that unit, and/or hazardous gas detection alarm device transmit controls the switch of first control valve and the second control valve.
A kind of LNG air supply systems, including the storage tank described in any of the above-described technical solution.
Description of the drawings
Fig. 1 is a kind of structural schematic diagram for storage tank that the utility model embodiment provides；
Fig. 2 is a kind of structural schematic diagram for storage tank that another embodiment of the utility model provides；
Fig. 3 is a kind of structural schematic diagram for storage tank that another embodiment of the utility model provides.
Specific implementation mode
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
The every other embodiment obtained, shall fall within the protection scope of the present invention.
As shown in FIG. 1 to 3, a kind of storage tank that the utility model embodiment provides, including：
Tank body 1 is equipped with output channel；
Tank body interconnecting piece 2 covers at the side that tank body 1 is equipped with output channel, and forms enclosure space, the envelope with tank body 1
Close space i.e. tank body connection place, cargo when which can leak to avoid the equipment on output channel and its path
Diffuse to wide open space；Specifically, tank body interconnecting piece 2 is equipped with gas inlet duct 3 and gases exit line 4, gas feed
Pipeline 3 is equipped with the first control valve 31, and gases exit line 4 is equipped with the second control valve 41, the control of the first control valve 31 and second
Valve 41 processed is used to coordinate the disengaging of gas in control enclosure space.
In above-mentioned storage tank, tank body connection place is formd between tank body interconnecting piece 2 and tank body 1, carried out by the tank body junction
One enclosure space completely cuts off with outside air, it can thus be avoided frosting causes the vapor in air in turn at low temperatures
Tank body connects the service life reduction on place inner tube road and equipment；Also, tank body interconnecting piece 2 is equipped with the gas communicated with the enclosure space
Therefore body inlet pipeline 3 and gases exit line 4 can be connected tank body by gas inlet duct 3 and gases exit line 4
The air in place is connect to empty and fill full inert gas；Specifically, since inert gas is not susceptible to chemical reaction therefore can
To avoid burning after flammable liquid, gas cargo leakage, safety is more preferable.In conclusion the safety of above-mentioned storage tank is more
Good, the service life is longer.In addition, the tank body connection place due to above-mentioned storage tank is not necessarily to mechanical ventilator, reliability
Higher, energy consumption are lower.
As shown in FIG. 1 to 3, it in a kind of specific embodiment, when storage tank works normally, can keep filling in enclosure space
Full inert gas.Optionally, which can be nitrogen.
Further, the air pressure in enclosure space can be slightly above standard atmospheric pressure；For example, the air pressure in enclosure space can
To remain 1.1~1.2 standard atmospheric pressures.
Specifically, before storage tank enabling, the first control valve 31 and the second control valve 41 can be first opened, it will using nitrogen
Tank body connects the air discharge in place, until being pure nitrogen gas in tank body connection place, closes the second control valve 41；It continues to fill up
Nitrogen finally closes the first control valve 31 until the pressure in tank body connection place is made to be about 1.1~1.2 atmospheric pressure, to
Make the pure nitrogen gas environment of 1.1~1.2 atmospheric pressure carried out by tank body junction.
As shown in FIG. 1 to 3, on the basis of the above embodiments, in a kind of specific embodiment, on tank body interconnecting piece 2
It is also provided with gas exhausting pipeline 5, gas exhausting pipeline 5 is equipped with triple valve 51.
Further, may be used two-way pipeline after triple valve 51, and per road pipeline on can set that there are one safety valves 52.
Specifically, when the pressure in tank body connection place is higher than the pressure value that safety valve 52 is set, safety valve 52 will rise
Pressure release is jumped, thereby may be ensured that the pressure in tank body connection place in safe range.
It as shown in FIG. 1 to 3,, can in enclosure space in a kind of specific embodiment on the basis of the various embodiments described above
To be equipped with pressure sensitive unit 6, for sensing the air pressure in enclosure space.
Specifically, in use, when gas cargo leakage, the pressure in tank body connection place can increase, and work as pressure
Power sensing unit 6 detects can trigger alarm when pressure is higher than a certain setting value (such as 1.2 atmospheric pressure)；At this point, opening the
Two control valves 41, by gas leakage with nitrogen discharge to specified region；Further, when discharge gas causes tank body to connect place
When interior pressure is less than a certain setting value (such as 1.1 atmospheric pressure), the first control valve 31 is opened, nitrogen is filled with, until tank body connects
It connects and reverts to pure nitrogen gas filling and pressure recovery in place when being 1.1~1.2 atmospheric pressure, turn off the first control valve 31 and the
Two control valves 41.
As shown in Figures 2 and 3, on the basis of the various embodiments described above, in a kind of specific embodiment, in enclosure space also
It can be equipped with temperature sensing unit 7, for sensing the temperature in enclosure space.
Specifically, when storing cryogenic cargo used in the tank body junction, in use, when cryogenic cargo leaks
When, the temperature in tank body connection place can reduce, when temperature sensing unit 7 detects that temperature is reduced to setting value or temperature change
Alarm can be triggered when reaching certain numerical value, opens the second control valve 41, by leakage cargo with nitrogen discharge to specified region；Into
One step, when discharge gas causes the pressure in tank body connection place to be less than a certain setting value (such as 1.1 atmospheric pressure), open
First control valve 31, is filled with nitrogen, until it is 1.1~1.2 to revert to pure nitrogen gas filling and pressure recovery in tank body connection place
When atmospheric pressure, the first control valve 31 and the second control valve 41 are closed.
As shown in Figures 2 and 3, on the basis of the above embodiments, in a kind of specific embodiment, temperature sensing unit 7
May include the first temperature sensor 71 and second temperature sensor 72；Specifically, it is empty to be located at closing for the first temperature sensor 71
Between upper area, for detecting enclosure space upper area temperature；Second temperature sensor 72 is located at enclosure space lower area,
For detecting enclosure space lower area temperature.
When storing cryogenic liquid cargo used in the tank body junction, in use, when liquid goods leaks, meeting
Arrive first at tank body connection place bottom, in turn, when the temperature that second temperature sensor 72 detects less than a certain setting value or
When temperature change reaches certain numerical value, it can both determine that liquid goods was revealed, to start eliminating measure.Further, liquid
It can be discharged with nitrogen after cargo evaporation.
It, can be in a kind of specific embodiment, in enclosure space as shown in figure 3, on the basis of the various embodiments described above
Equipped with catch tray 8, for receiving the liquid leaked in tank body connection place.
Specifically, when storing liquid goods used in the tank body junction, in use, when liquid goods leaks
Can fall into catch tray 8, i.e., catch tray 8 can contain leakage liquid, to avoid in liquid leakage to cabin, on deck or
Other regions.
Optionally, second temperature sensor 72 can be set in catch tray 8；Specifically, the cryogenic liquid of leakage can be with
Gradually gasify in catch tray 8, when the second temperature sensor 72 in catch tray 8, which detects temperature change, reaches certain numerical value
Trigger alarm；The second control valve 41 is opened, the gas for generation of gasifying can be with nitrogen discharge to specified region；Further, when
When discharge gas causes the pressure in tank body connection place to be less than a certain setting value (such as 1.1 atmospheric pressure), the first control is opened
Valve 31, is filled with nitrogen, when it is 1.1~1.2 atmospheric pressure to revert to pure nitrogen gas filling and pressure recovery in tank body connection place,
Close the first control valve 31 and the second control valve 41.
As shown in FIG. 1 to 3, on the basis of the various embodiments described above, in a kind of specific embodiment, in enclosure space also
Alarm device 9 is detected equipped with hazardous gas.The cargo kind that the type of hazardous gas detection alarm device 9 is stored according to tank body 1
Class determines, if tank body 1 is for storing fuel gas, then hazardous gas detection alarm device 9 is combustible gas detecting alarm dress
It sets.Specifically, by taking tank body 1 is used to store fuel gas as an example, in use, when combustible gas leakage, fuel gas
Detection alarm device can trigger alarm, open the second control valve 41 at this time, by fuel gas with nitrogen discharge to specified region, when
When discharge gas causes the pressure in tank body connection place to be less than a certain setting value (such as 1.1 atmospheric pressure), the second control is opened
Valve 41, is filled with nitrogen, when it is 1.1~1.2 atmospheric pressure to revert to pure nitrogen gas filling and pressure recovery in tank body connection place,
Close the first control valve 31 and the second control valve 41.
As shown in FIG. 1 to 3, on the basis of the various embodiments described above, in a kind of specific embodiment, storage tank can also be set
There is control unit, which can detect alarm dress with pressure sensitive unit 6, temperature sensing unit 7 and hazardous gas
The connection of any of 9 or several signals is set, also, the control unit can be according to pressure sensitive unit 6, temperature sensing unit
7, hazardous gas detects any of alarm device 9 or several transmitted detectable signals to control the first control valve 31 and second
The switch motion of control valve 41, and then realize automatically controlling for the first control valve 31 and the second control valve 41；
Further, control unit can be also used for controlling the output control valve on output channel according to above-mentioned detectable signal
Switch motion, to realize automatically controlling for cargo output, for example, above-mentioned control unit can be controlled according to cargo leakage situation
Output control valve is closed, and to stop output cargo in time, ensures safety.
Specifically, in use, when the pressure rise in tank body connection place is to setting value, temperature change reaches one
Determine degree or when hazardous gas cargo reaches a certain concentration, pressure sensitive unit 6, temperature sensing unit 7, hazardous gas are visited
Above-mentioned variation can be sensed respectively by surveying alarm device 9, and sensing signal is sent to control unit；And control unit according to
Above-mentioned sensing signal can control the first control valve 31 and the second control valve 41, for example, controlling the second control valve first
41 open, and by gas leakage with nitrogen discharge to specified region, then control the unlatching of the first control valve 31, are filled with nitrogen, until
It is 1.1~1.2 atmospheric pressure to revert to pure nitrogen gas filling and pressure in tank body connection place, finally closes the first control valve 31 and the
Two control valves 41；
Optionally, sensing signal can also be sent to control centre by control unit, in order to which staff understands in time
Storage tank security situation makes safe handling measure.
The utility model embodiment also provides a kind of LNG air supply systems, which includes any of the above-described embodiment
In storage tank.In the LNG air supply systems, the safety of storage tank is good, and reliability is high, and service life is long, and energy consumption is relatively low.
Obviously, those skilled in the art the utility model embodiment can be carried out various modification and variations without departing from
The spirit and scope of the utility model.In this way, if these modifications and variations of the present invention belong to the utility model right
It is required that and its within the scope of equivalent technologies, then the utility model is also intended to include these modifications and variations.
Claims (13)
1. a kind of storage tank, which is characterized in that including：
Tank body is equipped with output channel；
Tank body interconnecting piece covers at the side that the tank body is equipped with output channel, and forms enclosure space with the tank body；It is described
Tank body interconnecting piece is equipped with gas inlet duct and gases exit line, and the gas inlet duct is equipped with the first control valve,
The gases exit line is equipped with the second control valve.
2. storage tank according to claim 1, which is characterized in that be full of inert gas in the enclosure space.
3. storage tank according to claim 2, which is characterized in that the inert gas is nitrogen.
4. storage tank according to claim 2, which is characterized in that the air pressure in the enclosure space is higher than standard atmospheric pressure.
5. storage tank according to claim 4, which is characterized in that the air pressure in the enclosure space is 1.1~1.2 standards
Atmospheric pressure.
6. storage tank according to claim 4, which is characterized in that it is additionally provided with gas exhausting pipeline on the tank body interconnecting piece,
The gas exhausting pipeline is equipped with safety valve.
7. according to claim 1~6 any one of them storage tank, which is characterized in that be equipped with pressure sensing in the enclosure space
Unit, for sensing the air pressure in the enclosure space.
8. storage tank according to claim 7, which is characterized in that be equipped with temperature sensing unit in the enclosure space, be used for
Sense the temperature in the enclosure space.
9. storage tank according to claim 8, which is characterized in that the temperature sensing unit includes being located at the enclosure space
First temperature sensor of upper area and second temperature sensor positioned at the enclosure space lower area.
10. storage tank according to claim 8, which is characterized in that catch tray is additionally provided in the enclosure space, for receiving
Leak to the liquid in the enclosure space.
11. storage tank according to claim 8, which is characterized in that be additionally provided with hazardous gas detection police in the enclosure space
Reporting device.
12. storage tank according to claim 11, which is characterized in that the storage tank further includes control unit, and the control is single
It is first to be connect with the pressure sensitive unit, temperature sensing unit and hazardous gas detection alarm device signal, for according to institute
It states described in the signal control that pressure sensitive unit, and/or temperature sensing unit, and/or hazardous gas detection alarm device transmit
The switch of first control valve and the second control valve.
13. a kind of LNG air supply systems, which is characterized in that including claim 1~12 any one of them storage tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721835016.XU CN207848944U (en) | 2017-12-25 | 2017-12-25 | A kind of storage tank and LNG air supply systems |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721835016.XU CN207848944U (en) | 2017-12-25 | 2017-12-25 | A kind of storage tank and LNG air supply systems |
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| Publication Number | Publication Date |
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| CN207848944U true CN207848944U (en) | 2018-09-11 |
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| CN201721835016.XU Active CN207848944U (en) | 2017-12-25 | 2017-12-25 | A kind of storage tank and LNG air supply systems |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108050374A (en) * | 2017-12-25 | 2018-05-18 | 上海新奥新能源技术有限公司 | A kind of storage tank and LNG air supply systems |
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2017
- 2017-12-25 CN CN201721835016.XU patent/CN207848944U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108050374A (en) * | 2017-12-25 | 2018-05-18 | 上海新奥新能源技术有限公司 | A kind of storage tank and LNG air supply systems |
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