CN206694826U - A kind of LNG gasification system - Google Patents
A kind of LNG gasification system Download PDFInfo
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- CN206694826U CN206694826U CN201720533745.3U CN201720533745U CN206694826U CN 206694826 U CN206694826 U CN 206694826U CN 201720533745 U CN201720533745 U CN 201720533745U CN 206694826 U CN206694826 U CN 206694826U
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Abstract
The utility model provides a kind of LNG gasification system, including：LNG storage tank, air temperature type LNG gasification device is connected with the LNG storage tank, water-bath type LNG heaters, BOG heaters, storage tank boosting gasifier, EAR heaters, the LNG storage tank is connected to LNG tank cars by booster of unloading, the water-bath type LNG heaters, BOG heaters are connected to pressure regulating metering device by normal temperature gas phase pipe, pressure regulating metering device is connected to the middle municipal gas supply pipe of pressure, device for adding odor is provided between medium pressure municipal administration gas supply pipe and pressure regulating metering device, ball valve is provided between device for adding odor and the middle municipal gas supply pipe of pressure, spark arrester is installed on the exhaust stack of diffusing tower upstream.The utility model is designed reasonably, operating efficiency are high, and the low temperature LNG after supercharging, into main air-heating type gasifier, with being converted into gaseous state NG after air heat-exchange and raising temperature, outlet temperature is lower than environment temperature 10 DEG C, most afterwards through pressure regulation, metering, after be sent into gas ductwork.
Description
Technical field
Fuel gas transmission field is the utility model is related to, specially a kind of LNG gasification system.
Background technology
LNG has turned into the main source of the gas or transition view that can not use pipeline gas supply city at present, and many
Use the supplement source of the gas or peak regulation source of the gas in pipeline gas supply city.LNG gasification station is one and receives, stores and distribute LNG
Satellite station, and cities and towns or gas enterprise from manufacturer transfer LNG to the intermediate regulations place of user.LNG gasification station relies on
Its construction period it is short and can the satisfaction gas market demand rapidly advantage, gradually in the numerous economic hairs of China's southeastern coast
Reach, the small and medium-sized cities of energy scarcity are built up, turn into the transition supply facility before permanent supply facility or pipeline gas reach.
LNG is transported to gasification station by tank car, increases groove interior pressure using LNG boosters of unloading, LNG in tank car is delivered to
Stored in LNG low-temperature storage tanks.When being arranged outside LNG storage tank, first pass through storage tank from pressure charging system, raise pressure of storage tank, so
Storage tank liquid-phase outlet valve is opened afterwards, after the LNG in storage tank is delivered into gasifier by pressure differential, through pressure regulation, metering, adds the work such as smelly
Sequence is sent into municipal gas ductwork.When outdoor environment temperature is relatively low, and the natural gas temperature of air-heating type gasifier outlet is less than 5 DEG C,
Series connection water-bath type heater need to be exported in air-heating type gasifier, the natural gas after gasification is heated.But current gasification
System design is unreasonable, in-convenience in use, and potential safety hazard be present.
Utility model content
The technical problem that the utility model solves is to provide a kind of LNG gasification system, to solve above-mentioned background technology
The problem of middle proposition.
The technical problem that the utility model solves is realized using following technical scheme：A kind of LNG gasification system, bag
Include：LNG storage tank, air temperature type LNG gasification device, water-bath type LNG heaters, BOG heaters, storage tank are connected with the LNG storage tank
Boost gasifier, EAR heaters, and the LNG storage tank is connected to LNG tank cars, the water-bath type LNG heating by booster of unloading
Device, BOG heaters are connected to pressure regulating metering device by normal temperature gas phase pipe, and pressure regulating metering device is connected to the middle municipal combustion gas of pressure and supplied
Tracheae, device for adding odor, device for adding odor and middle pressure municipal administration are provided between medium pressure municipal administration gas supply pipe and pressure regulating metering device
Be provided with ball valve between gas supply pipe, the LNG storage tank, air temperature type LNG gasification device, water-bath type LNG heaters, BOG heaters,
Storage tank boosting gasifier, EAR heaters are connected to diffusing tower by exhaust stack, and back-fire relief is provided with the exhaust stack of diffusing tower upstream
Device.
One LNG liquid-phase tube of the LNG storage tank is connected to LNG fillers, and side is connected to exhaust stack on LNG liquid-phase tubes, puts
Separate tube is provided with stop valve, and in parallel on stop valve to be provided with safety valve, another LNG liquid-phase tube of the LNG storage tank is connected to storage
Tank boosts gasifier, and storage tank boosting gasifier exhaust stack is connected to diffusing tower, and exhaust stack is provided with stop valve, parallel connection on stop valve
Provided with safety valve.
The LNG liquid-phase tubes of the LNG storage tank are connected to air temperature type LNG gasification device, air temperature type LNG gasification device and LNG storage tank
Between LNG liquid-phase tubes be provided with pneumatic operated valve, stop valve, safety valve is installed in LNG storage tank.
The normal temperature gas phase pipe of the air temperature type LNG gasification device is connected to water-bath type LNG heaters, water-bath type LNG heaters
Normal temperature gas phase pipe between air temperature type LNG gasification device is provided with stop valve, and the exhaust stack of air temperature type LNG gasification device, which is provided with, to be cut
Only valve, it is in parallel on stop valve to be provided with safety valve.
Be provided with stop valve between exhaust stack between the water-bath type LNG heaters and spark arrester, on stop valve parallel connection set
There is safety valve.
The normal temperature gas phase pipe of the BOG heaters is connected to water-bath type LNG heaters, water-bath type LNG heaters and air temperature
Normal temperature gas phase pipe between formula LNG gasification device is provided with stop valve, and the exhaust stack of air temperature type LNG gasification device is provided with stop valve,
It is in parallel on stop valve to be provided with safety valve.
The pressure regulating metering device includes two sets of pressure regulation metering pipelines in parallel, and the pressure regulation metering pipeline is provided with four
Ball valve, turbine flowmeter is provided between first ball valve and second ball valve, is provided between the 3rd ball valve and the 4th ball valve
Two pressure regulators.
Compared with prior art, the beneficial effects of the utility model are：The utility model is designed reasonably, operating efficiency is high,
Low temperature LNG after supercharging, into main air-heating type gasifier, with being converted into gaseous state NG after air heat-exchange and raising temperature, outlet temperature
Degree it is lower than environment temperature 10 DEG C, most afterwards through pressure regulation, metering, after be sent into gas ductwork.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is that LNG storage tank pipeline of the present utility model connects enlarged drawing.
Fig. 3 is that air temperature type LNG gasification device pipeline of the present utility model connects enlarged drawing.
Fig. 4 is that water-bath type LNG heater lines of the present utility model connect enlarged drawing.
Fig. 5 is that pressure regulating metering device pipeline of the present utility model connects enlarged drawing.
Embodiment
In order that implement technical means of the present utility model, creation characteristic, reached purpose and effect are easy to understand, under
Face combines and is specifically illustrating, and the utility model is expanded on further.
As shown in Fig. 1~5, a kind of LNG gasification system, including：LNG storage tank 1, air temperature type is connected with the LNG storage tank 1
LNG gasification device 2, water-bath type LNG heaters 3, BOG heaters 4, storage tank boosting gasifier 5, EAR heaters 6, the LNG storage tank
1 is connected to LNG tank cars by booster of unloading, and the water-bath type LNG heaters 3, BOG heaters 4 pass through normal temperature gas phase Guan Lian
Pressure regulating metering device 7 is connected to, pressure regulating metering device 7 is connected to the middle municipal gas supply pipe of pressure, medium pressure municipal administration gas supply
Device for adding odor 8 is provided between pipe and pressure regulating metering device 7, ball valve is provided between device for adding odor 8 and the middle municipal gas supply pipe of pressure,
The LNG storage tank 1, air temperature type LNG gasification device 2, water-bath type LNG heaters 3, BOG heaters 4, storage tank boosting gasifier 5, EAR
Heater 6 is connected to diffusing tower by exhaust stack, and spark arrester is provided with the exhaust stack of diffusing tower upstream.
One LNG liquid-phase tube of the LNG storage tank 1 is connected to LNG fillers, and side is connected to exhaust stack on LNG liquid-phase tubes, puts
Separate tube is provided with stop valve, and in parallel on stop valve to be provided with safety valve, another LNG liquid-phase tube of the LNG storage tank 1 is connected to storage
Tank boosts gasifier 5, and the storage tank boosting exhaust stack of gasifier 5 is connected to diffusing tower, and exhaust stack is provided with stop valve, on stop valve simultaneously
Connection is provided with safety valve.
The LNG liquid-phase tubes of the LNG storage tank 1 are connected to air temperature type LNG gasification device 2, and air temperature type LNG gasification device 2 and LNG is stored up
LNG liquid-phase tubes between tank 1 are provided with pneumatic operated valve, stop valve, and safety valve is provided with LNG storage tank 1.
The normal temperature gas phase pipe of the air temperature type LNG gasification device 2 is connected to water-bath type LNG heaters 3, water-bath type LNG heating
Normal temperature gas phase pipe between device 3 and air temperature type LNG gasification device 2 is provided with stop valve, on the exhaust stack of air temperature type LNG gasification device 2
It is in parallel on stop valve to be provided with safety valve provided with stop valve.
Be provided with stop valve between exhaust stack between the water-bath type LNG heaters 3 and spark arrester, on stop valve parallel connection set
There is safety valve.
The normal temperature gas phase pipe of the BOG heaters 4 is connected to water-bath type LNG heaters 3, water-bath type LNG heaters 3 and sky
Normal temperature gas phase pipe between warm formula LNG gasification device 2 is provided with stop valve, and the exhaust stack of air temperature type LNG gasification device 2 is provided with cut-off
Valve, it is in parallel on stop valve to be provided with safety valve.
The pressure regulating metering device 7 includes two sets of pressure regulation metering pipelines in parallel, and the pressure regulation metering pipeline is provided with four
Individual ball valve, turbine flowmeter is provided between first ball valve and second ball valve, is set between the 3rd ball valve and the 4th ball valve
There are two pressure regulators.
The utility model LNG is stored using tank container, LNG gasification station is transported to by highway, in unloading deck by unloading
The horizontal special booster of unloading that ride is set is pressurized to container storage tank, and LNG is delivered into the storage of 60m3 low temperature LNG tank using pressure difference
Deposit.Under the conditions of inoperative, the temperature of LNG storage is -162 DEG C in storage tank, and pressure is normal pressure；Under condition of work, booster will be store
LNG superchargings in groove.Low temperature LNG after supercharging, into main air-heating type gasifier, with being converted into gaseous state NG after air heat-exchange and rising
High-temperature, outlet temperature is lower than environment temperature 10 DEG C, most afterwards through pressure regulation, metering, after be sent into gas ductwork.
The advantages of general principle and principal character of the present utility model and the utility model has been shown and described above.One's own profession
The technical staff of industry is it should be appreciated that the utility model is not restricted to the described embodiments, described in above-described embodiment and specification
Simply illustrate principle of the present utility model, on the premise of the spirit and scope of the utility model is not departed from, the utility model is also
Various changes and modifications are had, these changes and improvements are both fallen within claimed the scope of the utility model.The utility model
Claimed scope by appended claims and its equivalent thereof.
Claims (7)
1. a kind of LNG gasification system, including：LNG storage tank, it is characterised in that：Air temperature type LNG gas is connected with the LNG storage tank
Change device, water-bath type LNG heaters, BOG heaters, storage tank boosting gasifier, EAR heaters, the LNG storage tank increases by unloading
Depressor is connected to LNG tank cars, and the water-bath type LNG heaters, BOG heaters are connected to pressure regulation metering by normal temperature gas phase pipe and filled
Put, pressure regulating metering device is connected to the middle municipal gas supply pipe of pressure, medium pressure municipal administration gas supply pipe and pressure regulating metering device
Between be provided with device for adding odor, be provided with ball valve, the LNG storage tank, air temperature type between device for adding odor and the middle municipal gas supply pipe of pressure
LNG gasification device, water-bath type LNG heaters, BOG heaters, storage tank boosting gasifier, EAR heaters are connected to by exhaust stack
Diffusing tower, spark arrester is installed on the exhaust stack of diffusing tower upstream.
A kind of 2. LNG gasification system according to claim 1, it is characterised in that：One LNG liquid phase of the LNG storage tank
Pipe is connected to LNG fillers, and other on LNG liquid-phase tubes to be connected to exhaust stack, exhaust stack is provided with stop valve, on stop valve parallel connection be provided with
Safety valve, another LNG liquid-phase tube of the LNG storage tank are connected to storage tank boosting gasifier, storage tank boosting gasifier exhaust stack
It is connected to diffusing tower, exhaust stack is provided with stop valve, in parallel on stop valve to be provided with safety valve.
A kind of 3. LNG gasification system according to claim 1, it is characterised in that：The LNG liquid-phase tubes of the LNG storage tank connect
Air temperature type LNG gasification device is connected to, the LNG liquid-phase tubes between air temperature type LNG gasification device and LNG storage tank are provided with pneumatic operated valve, cut-off
Valve, safety valve is installed in LNG storage tank.
A kind of 4. LNG gasification system according to claim 1, it is characterised in that：The normal temperature of the air temperature type LNG gasification device
Gas phase pipe is connected to water-bath type LNG heaters, the normal temperature gas phase pipe between water-bath type LNG heaters and air temperature type LNG gasification device
It is provided with stop valve, the exhaust stack of air temperature type LNG gasification device is provided with stop valve, in parallel on stop valve to be provided with safety valve.
A kind of 5. LNG gasification system according to claim 1, it is characterised in that：The water-bath type LNG heaters and back-fire relief
It is provided with stop valve between exhaust stack between device, it is in parallel on stop valve to be provided with safety valve.
A kind of 6. LNG gasification system according to claim 1, it is characterised in that：The normal temperature gas phase pipe of the BOG heaters
Water-bath type LNG heaters are connected to, the normal temperature gas phase pipe between water-bath type LNG heaters and air temperature type LNG gasification device is provided with
Stop valve, the exhaust stack of air temperature type LNG gasification device are provided with stop valve, in parallel on stop valve to be provided with safety valve.
A kind of 7. LNG gasification system according to claim 1, it is characterised in that：The pressure regulating metering device includes two sets
Pressure regulation metering pipeline in parallel, the pressure regulation metering pipeline is provided with four ball valves, between first ball valve and second ball valve
Provided with turbine flowmeter, two pressure regulators are provided between the 3rd ball valve and the 4th ball valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720533745.3U CN206694826U (en) | 2017-05-15 | 2017-05-15 | A kind of LNG gasification system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720533745.3U CN206694826U (en) | 2017-05-15 | 2017-05-15 | A kind of LNG gasification system |
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| Publication Number | Publication Date |
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| CN206694826U true CN206694826U (en) | 2017-12-01 |
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ID=60450016
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| Application Number | Title | Priority Date | Filing Date |
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| CN201720533745.3U Active CN206694826U (en) | 2017-05-15 | 2017-05-15 | A kind of LNG gasification system |
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| CN (1) | CN206694826U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107906362A (en) * | 2017-05-15 | 2018-04-13 | 阜阳国祯燃气有限公司 | A kind of LNG gasification system |
| CN108506720A (en) * | 2018-04-24 | 2018-09-07 | 安徽巨力能源有限公司 | A kind of safe and efficient LNG supply systems |
| CN108799829A (en) * | 2018-06-14 | 2018-11-13 | 蚌埠艾普压缩机制造有限公司 | A kind of LNG gasification device |
-
2017
- 2017-05-15 CN CN201720533745.3U patent/CN206694826U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107906362A (en) * | 2017-05-15 | 2018-04-13 | 阜阳国祯燃气有限公司 | A kind of LNG gasification system |
| CN108506720A (en) * | 2018-04-24 | 2018-09-07 | 安徽巨力能源有限公司 | A kind of safe and efficient LNG supply systems |
| CN108799829A (en) * | 2018-06-14 | 2018-11-13 | 蚌埠艾普压缩机制造有限公司 | A kind of LNG gasification device |
| CN108799829B (en) * | 2018-06-14 | 2020-04-24 | 蚌埠艾普压缩机制造有限公司 | LNG gasification equipment |
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