CN206637250U - A kind of BOG reclaims refueling system - Google Patents
A kind of BOG reclaims refueling system Download PDFInfo
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- CN206637250U CN206637250U CN201720279553.4U CN201720279553U CN206637250U CN 206637250 U CN206637250 U CN 206637250U CN 201720279553 U CN201720279553 U CN 201720279553U CN 206637250 U CN206637250 U CN 206637250U
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- bog
- refueling system
- reclaims
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Abstract
A kind of BOG reclaims refueling system, and it includes：LNG distribution systems, the LNG distribution systems comprise at least to refueling system offer BOG BOG and unload device of air；CNG distribution systems, described at least one output port of CNG distribution systems is to export high pressure CNG；Also include BOG recovery systems, the BOG recovery systems are arranged between the LNG distribution systems and the CNG distribution systems, the BOG recovery systems are unloaded device of air with the BOG and are connected, and the BOG recovery systems comprise at least BOG heaters, natural gas surge tank and the compressor being sequentially connected.BOG of the present utility model reclaims refueling system, and equipment is simple, and cost is low, can realize the recycling to BOG, reduces the discharge of greenhouse gases.
Description
Technical field
It the utility model is related to natural gas gas station technical field, and in particular to a kind of BOG reclaims refueling system.
Background technology
Natural gas has been widely used for society, many aspects lived as fuel at present, transports and fills for convenience
Carry, by forming liquefied natural gas (Liquefied NaturalGas, LNG) to natural gas liquefaction, have become natural gas profit
One of important way.In order to expand LNG use range, currently it is usually taken and L-CNG aeratings is set in predetermined position
The mode stood, it is long-distance transport heavy truck, bus or taxi and other gas equipment filling liquefaction days to be added in predetermined position
Right gas and high-pressure natural gas and provide low pressure natural gas to pipeline.
L-CNG gas stations typically mainly include fluid reservoir, the pump sled with low temperature immersed pump and with low temperature piston pumps
Pump sled, high pressure air temperature gasifier, water-bath heater, sequential control disk, gas cylinder group, liquid filler and filling machine and control device group
Into.Wherein, it is natural to heavy truck, bus, and other equipment filling liquefaction by low temperature immersed pump, liquid filler, control system
Gas (Liquefied NaturalGas, LNG).Again by low temperature piston pump sled by high pressure air temperature gasifier, water-bath heater,
Sequential control disk, gas cylinder group, filling machine and control system, directly to automobile or other treat aerating equipment fill CNG
(Compressed Natural Gas)。
In the process because such as (1) is during discharging, because the vapour pressure in LNG ship is high；(2) in discharging
During, because ambient temperature leaks heat；(3) the cold damage of LNG storage tank；(4) LNG low-lift pumps and high pressure pump operation；(5) pipeline is cold
Damage；(6) when natural gas is minimum outer defeated；(7) BOG can be all produced during the loading, unloading of LNG tank cars.And caused BOG, such as without offer conjunction
Suitable recycling channel, car owner's generally use are vented manually, cause environmental pollution.
Utility model content
Therefore, the technical problems to be solved in the utility model is to overcome recycling BOG costs of the prior art
Greatly, the defects of efficiency is low, refueling system is reclaimed so as to provide a kind of BOG for not discharging BOG.
Therefore, the technical solution of the utility model is as follows：
A kind of BOG reclaims refueling system, and it includes：LNG distribution systems, the LNG distribution systems are comprised at least to described
The BOG that refueling system provides BOG unloads device of air；CNG distribution systems, described at least one output port of CNG distribution systems with
Export high pressure CNG；Also include BOG recovery systems, the BOG recovery systems are arranged on the LNG distribution systems and the CNG points
Between match system, the BOG recovery systems are unloaded device of air with the BOG and are connected, the BOG recovery systems comprise at least according to
BOG heaters, natural gas surge tank and the compressor of secondary connection.
Further, the refueling system also includes control device, and the control device controls adding for the refueling system
Gas process.
Further, the control device uses PLC control system.
Further, the refueling system also includes data acquisition device and supervising device, the data acquisition device and
Supervising device is connected with the control device signal.
Further, the supervising device includes camera, the data acquisition device comprise at least temperature sensor and
Combustible gas detecting device.
Further, the emergency shutoff device of cut-off conveying is additionally provided with the transfer pipeline of the refueling system.
Further, the CNG distribution systems also include filling machine, and the output end of the filling machine and the compressor connects
Connect, and high pressure CNG is exported to CNG tank cars.
Further, the BOG, which unloads device of air, includes discharge column and BOG recovery tubes, and the discharge column connects with LNG tank cars
Connect.
Further, the BOG heaters are air temperature heater, and the air temperature heater is provided with two, described in two
Air temperature heater is arranged in parallel.
Further, the compressor is provided with two, and two compressor parallels are set.
Further, it is provided with switch valve on two lateral lines of each air temperature heater；Each compressor
Two lateral lines on be provided with switch valve, be provided with switch valve on two lateral lines of the natural gas surge tank.
Technical solutions of the utility model, have the following advantages that：BOG of the present utility model reclaims refueling system, directly to LNG
Tank car and the BOG unloaded during gas are reclaimed, and produce CNG using BOG, equipment is simple, and cost is low, can realize to BOG's
Recycle, reduce the discharge of greenhouse gases.
Brief description of the drawings
, below will be right in order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art
The required accompanying drawing used is briefly described in embodiment or description of the prior art, it should be apparent that, describe below
In accompanying drawing be some embodiments of the present utility model, for those of ordinary skill in the art, do not paying creativeness
On the premise of work, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is that a kind of BOG described in the utility model embodiment reclaims refueling system structure connection diagram；
Description of reference numerals：
1-LNG tank cars；2- unloads car column；The BOG heaters of 3- the first；The BOG heaters of 4- the 2nd；5- natural gas surge tanks；6-
First natural gas compressor；The natural gas compressors of 7- second；8- sewerages；9- filling machines；10-CNG tank cars；11- ball valves；
12- check-valves；13- safety valves；14- electrical ball valves；15- lp venting seamless steel pipes；16-BOG recovery tubes；17- high pressures are natural
Gas efferent duct；18- blowdown seamless steel pipes；19- high pressures are vented seamless steel pipe；20- pressure gauges；21- flexible pipes；
Embodiment
The technical solution of the utility model is clearly and completely described below in conjunction with accompanying drawing, it is clear that described
Embodiment is the utility model part of the embodiment, rather than whole embodiments.Based on the embodiment in the utility model, sheet
The every other embodiment that field those of ordinary skill is obtained under the premise of creative work is not made, belongs to this practicality
Novel protected scope.
, it is necessary to explanation in description of the present utility model, term " " center ", " on ", " under ", it is "left", "right", " perpendicular
Directly ", the orientation of the instruction such as " level ", " interior ", " outer " or position relationship are based on orientation shown in the drawings or position relationship, are only
Described for the ease of description the utility model and simplifying, rather than instruction or imply signified device or element must have it is specific
Orientation, with specific azimuth configuration and operation, therefore it is not intended that to limitation of the present utility model.In addition, term " the
One ", " second ", " the 3rd " are only used for describing purpose, and it is not intended that instruction or hint relative importance.
, it is necessary to which explanation, unless otherwise clearly defined and limited, term " are pacified in description of the present utility model
Dress ", " connected ", " connection " should be interpreted broadly, for example, it may be fixedly connected or be detachably connected, or integratedly
Connection；Can be mechanical connection or electrical connection；Can be joined directly together, can also be indirectly connected by intermediary,
It can be the connection of two element internals.For the ordinary skill in the art, above-mentioned art can be understood with concrete condition
Concrete meaning of the language in the utility model.
In addition, as long as technical characteristic involved in the utility model different embodiments disclosed below is each other
Conflict can is not formed to be combined with each other.
Embodiment 1
Refueling system is reclaimed for a kind of BOG of the present utility model as shown in Figure 1, it includes：LNG distribution systems, CNG distribution
System and BOG recovery systems, wherein the LNG distribution systems, which are comprised at least to refueling system offer BOG BOG, unloads gas
Device；Described at least one output port of CNG distribution systems is to export high pressure CNG；The BOG recovery systems are arranged on described
Between LNG distribution systems and the CNG distribution systems, and connect respectively with the LNG distribution systems and the CNG distribution systems
Connect；Specifically the BOG recovery systems are unloaded device of air with the BOG and are connected.
The LNG distribution systems in the present embodiment are connected with LNG tank cars 1, the BOG unload device of air include with it is described
LNG tank cars 1 connect unloads car column 2 to convey the 15-17 of the BOG in the LNG tank cars 1, and the CNG distribution systems also include adding
Mechanism of qi 9, the filling machine 9 are connected with CNG tank cars 10 and export high pressure CNG to the CNG tank cars.
The BOG unloads device of air and BOG is inputted into the BOG recovery systems by BOG recovery tubes 16；The BOG recovery tubes
16 be low pressure natural gas seamless steel pipe, each pipelines of the BOG recovery systems (including BOG recovery tubes 16 and each branched pipe
Road) on be additionally provided with ball valve 11 for controlling each pipeline break-make；Specifically, as shown in Figure 1 in the first BOG heaters 3
With on each parallel branch pipeline where the 2nd BOG heaters 4, in the first BOG heaters 3 and the 2nd BOG heaters 4
Both sides are provided with the ball valve 11 of control turnover pipeline break-make, and control is also provided with the both ends of the natural gas surge tank 5
The ball valve 11 of turnover pipeline break-make, it is provided with the both sides of the natural gas compressor 7 of the first natural gas compressor 6 and second
Control the switch valve of turnover pipeline break-make.
The BOG recovery systems comprise at least：Two the first BOG heaters 3 and the 2nd BOG heaters 4, two in parallel
First natural gas compressor 6 and the second natural gas compressor 7 and natural gas surge tank 5 in parallel, the natural gas surge tank
5 are arranged between first, second BOG heaters and first, second natural gas compressor, and the natural gas surge tank 5, BOG add
Hot device and natural gas compressor is sequentially connected.
The first BOG heaters 3 and the 2nd BOG heaters 4 wherein in the present embodiment use air temperature heater；First day
The right natural gas compressor 7 of air compressor 6 and second uses reciprocating-piston compressor, the first pressure natural gas wherein in the present embodiment
The flow of contracting machine 6 is 2.5Nm3/min；Pressure at expulsion is 25Mpa；The type of cooling is air-cooled；The stream of second natural gas compressor 7
Measure as 2.15Nm3/min；Pressure at expulsion is 4.5Mpa；The type of cooling is water cooling, cooling water consumption 12m3/h.In the present embodiment
Filling machine by single rifle aerating post to CNG tank cars convey CNG, wherein aerating post design maximum stream flow be 70Nm3/min, maximum
Operating pressure is 25MPa.
The refueling system also includes control device, and the control device controls the fueling process of the refueling system.Institute
State control device and use PLC control system.Wherein first, second natural gas compressor and filling machine pass through signal of communication and PIC
Control system is connected, and the running of the BOG aeratings recovery system is controlled by the PLC control system.
In the present embodiment, the refueling system also includes data acquisition device and supervising device, the data acquisition device
It is connected with supervising device with the control device signal.The supervising device includes camera, and the camera carries out video prison
Control；The data acquisition device comprises at least temperature sensor, fuel gas detecting system.The temperature in the present embodiment passes
The outlet pipe end that sensor is arranged on the heater is monitored to the temperature of gasification, is alarmed when the temperature is too low；The present embodiment
In refueling system also include emergency shutoff device, the emergency shutoff device is arranged on the pipeline of the inlet tube end of heater
On, for when breaking down or carry out emergency cut-off to the refueling system during alarm.Combustible gas physical examination in the present embodiment
Examining system is at least used to detect the leak cases of fuel gas such as Xie Qi areas, gasification zone and aerating area and send alarm.
In the BOG recovery refueling systems of the present embodiment, also connect on the BOG recovery tubes between discharge column 2 and heater
Be connected to the lp venting seamless steel pipe 15 for emptying, at the same filling machine 9 be also connected with high pressure emptying seamless steel pipe 19 into
Row emptying.
Its course of work of BOG of the present utility model recovery refueling system is：In LNG tank cars tank or caused by during unloading
BOG enters two first, second BOG heaters in parallel by BOG recovery tubes 16 and heated, and is delayed by natural gas surge tank 5
Punching, enter back into after the compression of first, second natural gas compressor and filling machine 9 is output to by high-pressure natural gas efferent duct 17, finally
CNG tank cars 10 are added by filling machine 9；Wherein high-pressure natural gas efferent duct 17 uses high-pressure natural gas boiler seamless steel pipe.Together
When first, second natural gas compressor also with blowdown seamless steel pipe 18 and high pressure emptying seamless steel pipe 19 be connected；BOG was reclaimed
Caused sewage drains into sewerage 8 by blowdown seamless steel pipe 18 in journey.
Obviously, above-described embodiment is only intended to clearly illustrate example, and not to embodiment party's the utility model
BOG recovery refueling systems, directly LNG tank cars and the BOG unloaded during gas are reclaimed, utilize BOG production CNG, equipment
Simply, cost is low, can realize the recycling to BOG, reduces the discharge of greenhouse gases.
Obviously, above-described embodiment is only intended to clearly illustrate example, and is not the restriction to embodiment.It is right
For those of ordinary skill in the art, can also make on the basis of the above description it is other it is various forms of change or
Change.There is no necessity and possibility to exhaust all the enbodiments.And the obvious change thus extended out or
Among the protection domain that variation is created still in the utility model.
Claims (11)
1. a kind of BOG reclaims refueling system, it is characterised in that including：
LNG distribution systems, the LNG distribution systems comprise at least to refueling system offer BOG BOG and unload device of air；
CNG distribution systems, described at least one output port of CNG distribution systems is to export high pressure CNG；
Also include BOG recovery systems, the BOG recovery systems be arranged on the LNG distribution systems and the CNG distribution systems it
Between, the BOG recovery systems are unloaded device of air with the BOG and are connected, and the BOG recovery systems comprise at least what is be sequentially connected
BOG heaters, natural gas surge tank and compressor.
2. BOG according to claim 1 reclaims refueling system, it is characterised in that：The refueling system also includes control dress
Put, the control device controls the running of the refueling system.
3. BOG according to claim 2 reclaims refueling system, it is characterised in that：The control device is using PLC controls system
System.
4. BOG according to claim 3 reclaims refueling system, it is characterised in that：The refueling system is also adopted including data
Acquisition means and supervising device, the data acquisition device and supervising device are connected with the control device signal.
5. BOG according to claim 4 reclaims refueling system, it is characterised in that：The supervising device includes camera, institute
State data acquisition device and comprise at least temperature sensor and combustible gas detecting device.
6. BOG according to claim 5 reclaims refueling system, it is characterised in that：On the transfer pipeline of the refueling system
It is additionally provided with the emergency shutoff device of cut-off conveying.
7. BOG according to claim 6 reclaims refueling system, it is characterised in that：The CNG distribution systems also include aerating
Machine, the filling machine are connected with the output end of the compressor, and export high pressure CNG to CNG tank cars.
8. BOG according to claim 7 reclaims refueling system, it is characterised in that：The BOG, which unloads device of air, to be included unloading gas
Post, the discharge column are connected with LNG tank cars.
9. BOG according to claim 8 reclaims refueling system, it is characterised in that：The BOG heaters heat for air temperature
Device, the air temperature heater are provided with two, and two air temperature heaters are arranged in parallel.
10. BOG according to claim 9 reclaims refueling system, it is characterised in that：The compressor is provided with two, and two
The individual compressor parallel is set.
11. the BOG recovery refueling systems according to foregoing any one claim, it is characterised in that：Each air temperature
Switch valve is provided with two lateral lines of heater；Switch valve is provided with two lateral lines of each compressor, institute
State and be provided with switch valve on two lateral lines of natural gas surge tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720279553.4U CN206637250U (en) | 2017-03-21 | 2017-03-21 | A kind of BOG reclaims refueling system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720279553.4U CN206637250U (en) | 2017-03-21 | 2017-03-21 | A kind of BOG reclaims refueling system |
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| Publication Number | Publication Date |
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| CN206637250U true CN206637250U (en) | 2017-11-14 |
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| CN201720279553.4U Active CN206637250U (en) | 2017-03-21 | 2017-03-21 | A kind of BOG reclaims refueling system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108426166A (en) * | 2018-05-15 | 2018-08-21 | 张家港艾普能源装备有限公司 | Automatic Regulation LNG liquid addition system |
| CN109798439A (en) * | 2019-03-05 | 2019-05-24 | 江苏鼎程新能源科技有限公司 | A kind of re-liquefied system of BOG |
| CN113983354A (en) * | 2021-10-19 | 2022-01-28 | 中国船舶重工集团公司第七一一研究所 | Self-pressurization gas supply system for ship and working method thereof |
-
2017
- 2017-03-21 CN CN201720279553.4U patent/CN206637250U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108426166A (en) * | 2018-05-15 | 2018-08-21 | 张家港艾普能源装备有限公司 | Automatic Regulation LNG liquid addition system |
| CN109798439A (en) * | 2019-03-05 | 2019-05-24 | 江苏鼎程新能源科技有限公司 | A kind of re-liquefied system of BOG |
| CN113983354A (en) * | 2021-10-19 | 2022-01-28 | 中国船舶重工集团公司第七一一研究所 | Self-pressurization gas supply system for ship and working method thereof |
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