CN207702118U - A kind of emergent feeder of liquefied natural gas - Google Patents
A kind of emergent feeder of liquefied natural gas Download PDFInfo
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- CN207702118U CN207702118U CN201721866770.XU CN201721866770U CN207702118U CN 207702118 U CN207702118 U CN 207702118U CN 201721866770 U CN201721866770 U CN 201721866770U CN 207702118 U CN207702118 U CN 207702118U
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- gasifier
- babinet
- pressure regulator
- gas phase
- gas
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Abstract
The utility model discloses a kind of emergent feeders of liquefied natural gas, it is characterised in that：There are two the babinets of skid tape frame for tool, unload booster, BOG heaters, pressure regulator valve, flowmeter, device for adding odor are equipped in first babinet, booster of unloading connection supercharging liquid phase mouth is exported with liquid is unloaded, the import of BOG heaters is supercharging gas phase mouth, gas phase entrance is connected to pressure regulator valve and is connected to natural liquid gases gas vent through flowmeter by the road, and the outlet of BOG heaters connects pressure regulator valve through threeway；Gasifier is equipped in second babinet；When use state, the liquid outlet of unloading is through connection by metal hose to gasifier import, and gasifier exit is through connection by metal hose to gas phase entrance.The utility model is compact-sized, reduces and takes up an area than traditional LNG gasification station, while ensure that the realization of big flow gas supply；Its is rationally distributed, the emergent demand easy to connect that disclosure satisfy that large size gas market.
Description
Technical field
The utility model is related to a kind of liquefied natural gas supplying devices, and in particular to one kind being used for big flow liquefied natural gas
The device of emergent gas supply.
Background technology
Liquefied natural gas（LNG）Due to having the characteristics that high heating value and low stain, become it is a kind of welcome by people it is clear
The clean energy.Liquefied natural gas is pressurized in gas supply, pressure regulation metering, the multi-steps such as smelly, gasification is added to operate, to wherein
BOG gases, need to carry out BOG heating, pressure regulation metering plus smelly and safety to diffuse processing.Therefore, it will usually build fixed day
Right gas supply station, or supplied using pipeline natural gas.However, the occasion permanently supplied can not be provided at some,
Or in the case of permanent air supply system failure, it is desirable to provide the emergent gas supply of liquefied natural gas.
Chinese utility model patent CN204372532U discloses a kind of emergent feeder of natural gas skid-mounted type, including sled
Entrucking, liquefied natural gas steel cylinder, filter, level-one air temperature gasifier, level-one pressure regulator, two level air temperature gasifier, second voltage regulation
Device and cut-out valve group, skid vehicle include the rectangular chassis that channel steel and steel plate are welded, and liquefied natural gas steel is welded on chassis
Bottle fixed frame, liquefied natural gas steel cylinder are fixed on fixed frame；Liquefied natural gas steel cylinder is through pipeline and pressure gauge, safety valve and mistake
Filter connects, and filter connect with level-one air temperature gasifier, level-one pressure regulator successively through pipeline, level-one pressure regulator by the road, press
Power table is connect with two level air temperature gasifier, second voltage regulation device, cut-out valve group successively；Valve group is cut off successively through safety valve, gauge
Table and device for adding odor are connect with user's gas pipe network.This device can provide interim gas supply service to the user, still, can only
It is supplied suitable for small flow, and BOG gases cannot be handled.
When generation area supplies failure, such as residential quarters, industrial enterprise are when either big companies stop the supple of gas or steam or temporary
There is no the area of pipe network, it is desirable to provide how the emergent gas supply of big flow realizes that packaged type big flow liquefied natural gas is emergent
Gas supply, is problem to be solved.Especially 2000~3000Nm3The emergent gas supply of the big flow natural gas of/h, is to be difficult at present
It solves.
Invention content
The goal of the invention of the utility model is to provide a kind of emergent feeder of liquefied natural gas, passes through structure design, protects
The mobility of card device realizes the emergent gas supply of the liquefied natural gas of big flow, to meet the large-scale emergent demand for using gas client.
To achieve the above object of the invention, the technical solution adopted in the utility model is：A kind of emergent gas supply of liquefied natural gas
Device has the babinet there are two skid tape frame, unload booster, BOG heaters, pressure regulator valve, flow is equipped in the first babinet
The import of meter, device for adding odor, the booster of unloading is supercharging liquid phase mouth, and the outlet of the booster of unloading is to unload liquid outlet,
The import of the BOG heaters is supercharging gas phase mouth, is equipped with gas phase entrance and natural liquid gases gas vent, the gas phase entrance
It is connected to pressure regulator valve by the road, and natural liquid gases gas vent, the outlet three of the BOG heaters are connected to through flowmeter
Lead to the pipeline for being connected to and being connected to pressure regulator valve by gas phase entrance；Gasifier is equipped in second babinet, the gasifier has gasifier
Import and gasifier exit；Each pipeline and import and export are respectively equipped with valve；When use state, it is described unload liquid outlet it is soft through metal
Pipe is connected to gasifier import, and gasifier exit is through connection by metal hose to gas phase entrance.
In above-mentioned technical proposal, using the babinet of two skid tape frames, in use, liquefied natural gas air source is by others
Skid vehicle provides, therefore, it is possible to which the processing unit of enough flows is arranged, provides the emergent gas supply of liquefied natural gas of big flow；By
It is located in different babinets from BOG heaters in gasifier, the two will not interact；BOG heaters and pressure regulation, add metering
Smelly device is located in same babinet, can realize pressure regulation meter easily by the gas access supply air line by BOG heating
Amount.
In above-mentioned technical proposal, in the first babinet, the booster of unloading is arranged in babinet one end, the BOG heaters
It is arranged in the middle part of babinet, gas phase entrance, threeway, pressure regulator valve, flowmeter, device for adding odor, natural liquid gases gas vent are along pipeline
Around BOG heater settings, each outlet, entrance are located at two longer side faces of babinet.
Preferred technical solution in the first babinet, unloads liquid outlet and gas phase entrance is located at the same side of babinet, boost fluid
Phase mouth, supercharging gas phase mouth are located at another side of babinet.This design is convenient for the connection between each pipeline when in use.
Further technical solution in the first babinet, is equipped with two sets pressure regulation pipelines, the gas phase entrance is respectively through correspondence valve
Door is connected to the first pressure regulator valve and the second pressure regulator valve, the outlet of the first pressure regulator valve and the second pressure regulator valve, two sets of pressure regulation pipelines
Setting up and down, the projection in tank floor overlaps.Pressure-regulating portion sets up two groups of switchings of meter separately and uses, and realizes the using and the reserved function（I.e.
" use " is to meet to be used, " standby " to switch when non-normal use all the way）, can utmostly ensure gas supply demand.
In first babinet, it is connected to the BOG heaters and is equipped with safe releasing device.Safe releasing device by low-temperature and
The compositions such as fall lift safety valve, safety valve automatic-discharging, medium of discharge when pipeline pressure is more than set-pressure diffuse peace
It is region-wide.
Preferred technical solution in the second babinet, is equipped with two groups of gasifiers, and two groups of gasifiers are arranged in juxtaposition, wherein
One group of gasifier is standby gasifier, and the import of two groups of gasifiers is connected to through metal hose respectively unloads liquid outlet, two groups of gasifications
The outlet of device is connected to gas phase entrance through metal hose respectively.
In above-mentioned technical proposal, the gasifier is air-heating type gasifier.
Since above-mentioned technical proposal is used, the utility model has following advantages compared with prior art：
1, in the utility model be provided with two skid babinets, on the one hand ensure that integrated level, supercharging of unloading, BOG heating,
Pressure regulation metering adds smelly function to be integrated in a skid babinet, and gasifier and front and back pipeline are integrated in a skid babinet, structure
It is compact, it reduces and takes up an area than traditional LNG gasification station, on the other hand ensure that the realization of big flow gas supply；
2, in the utility model, the reasonable distribution layout of each component can be such that BOG heaters are detached with gasifier, protect
Both cards normal work, and only need to can be achieved with the piping connection between two babinets using two metal hoses；
3, the utility model configuration process simplification in the case where meeting use condition and safety, is greatly saved expense, compares
For the period at construction LNG gasification station, cost, benefit, greatly meets the needs of with gas market, LNG tank cars directly pass through
Unloading liquid function of increasing pressure part and can meet client's Emergency use LNG gas demands in connection by metal hose skid, becomes permanent
It supplies the transition before facility or pipe natural gas arrival and supplies facility；
4, the utility model good reliability, air-heating type gasifier design the using and the reserved, and pressure regulation circuit design the using and the reserved are full
Foot is uninterrupted to the greatest extent to supply demand.
Description of the drawings
Fig. 1 is the structural schematic diagram of the first babinet in the utility model embodiment；
Fig. 2 is the vertical view of Fig. 1；
Fig. 3 is the structural schematic diagram of the second babinet in the utility model embodiment；
Fig. 4 is the vertical view of Fig. 3.
Wherein：1, the first babinet；2, it unloads booster；3, BOG heaters；4, pressure regulator valve；5, flowmeter；6, it is pressurized liquid phase
Mouthful；7, liquid outlet is unloaded；8, it is pressurized gas phase mouth；9, gas phase entrance；10, natural liquid gases gas vent；11, threeway；12, safety is put
Dissipate mechanism；13, the second babinet；14, gasifier；15, gasifier import；16, gasifier exit.
Specific implementation mode
The utility model is further described with reference to the accompanying drawings and embodiments：
Embodiment one：Shown in Fig. 1 to Fig. 4, a kind of emergent feeder of liquefied natural gas, there are two skid band frames for tool
The babinet of frame.
As depicted in figs. 1 and 2, in the first babinet 1 be equipped with unload booster 2, BOG heaters 3, pressure regulator valve 4, flowmeter 5,
The import of device for adding odor, the booster 2 of unloading is supercharging liquid phase mouth 6, and the outlet of the booster 2 of unloading is to unload liquid outlet 7,
The import of the BOG heaters 3 is supercharging gas phase mouth 8, is equipped with gas phase entrance 9 and natural liquid gases gas vent 10, the gas
Phase entrance 9 is connected to pressure regulator valve 4 by the road, and is connected to natural liquid gases gas vent 10, the BOG heating through flowmeter 5
The outlet of device 3 is connected to the pipeline that pressure regulator valve 4 is connected to by gas phase entrance 9 through threeway 11.Wherein, the setting of booster 2 of unloading
In babinet one end, the BOG heaters 3 are arranged in the middle part of babinet, gas phase entrance 9, threeway 11, pressure regulator valve 4, flowmeter 5 plus smelly
Device, natural liquid gases gas vent 10 are arranged along pipeline around BOG heaters 3, unload liquid outlet 7 and gas phase entrance 9 is located at case
The same side of body, supercharging liquid phase mouth 6, supercharging gas phase mouth 8 are located at another side of babinet.Equipped with two sets of pressure regulation pipelines, institute
It states gas phase entrance and is connected to the first pressure regulator valve and the second pressure regulator valve through corresponding valve respectively, the first pressure regulator valve and the second pressure regulator valve
Outlet, two sets of surge pipe roads are setting up and down, and the projection in tank floor overlaps.It is connected to and is equipped with the BOG heaters 3
Safe releasing device 12.
In the present embodiment, the pressure regulator valve is calculated as ultrasonic flowmeter with one body function of cut-out, the flow.
As shown in Figure 3 and Figure 4, gasifier 14 is equipped in the second babinet 13, the gasifier has 15 He of gasifier import
Gasifier exit 16；Each pipeline and import and export are respectively equipped with valve；When use state, the liquid outlet of unloading connects through metal hose
It is connected to gasifier import, gasifier exit is through connection by metal hose to gas phase entrance.
In the present embodiment, two groups of gasifiers are equipped with, two groups of gasifiers are arranged in juxtaposition, and one of which gasifier is spare
Gasifier, the import of two groups of gasifiers is connected to through metal hose respectively unloads liquid outlet, and the outlet of two groups of gasifiers is respectively through gold
Belong to hose and is connected to gas phase entrance；The gasifier is air-heating type gasifier.
The system inlets pressure of the present embodiment is 0.6~1.5Mpa, by upstream（Such as LNG tank cars）The liquified natural gas of offer
（LNG）, first by supercharging of unloading after, tank car LNG enter air-heating type gasifier gasification, then flow through voltage-regulating system pressure regulation and arrive
0.25Mpa is measured into metering system, input fuel gas pipeline conveying after adding smelly and safety to diffuse.
Tank car BOG gases enter BOG pipelines, initially enter BOG heaters, subsequently into pressure regulator pressure regulation, flowmeter meter
Amount inputs gas pipeline after adding smelly and safety to diffuse.
System it is specifically used be explained further it is as follows：
（One）, system operates before putting into operation
1. supercharging of unloading, BOG heating, pressure regulation metering are added each interfaces of the LNG of smelly sled, with upstream（LNG tank cars increase
Pressure liquid phase mouth is pressurized gas phase mouth, unloads liquid mouth）It connects, and is connected with the inlet and outlet of gasification sled, also needed and back-up vaporization
The inlet and outlet of sled connects, and gas outlet and downstream pipe are connected, by all safety valve piping connections in sled
It is good.
2. check gasification sled, back-up vaporization sled and supercharging of unloading, BOG heating, pressure regulation metering add smelly sled each valve whether
Closed state.
3. gasification sled, back-up vaporization sled and supercharging of unloading, BOG heating, pressure regulation metering to be added to the control power switch of smelly sled
It closes a floodgate.
4. supercharging of unloading, BOG heating, pressure regulation metering to be added to all pressure of smelly sled and gasification sled and back-up vaporization sled
The root valve opening of table root valve, pressure transmitter root valve, safety valve.
5. equipment is using preceding first confiring that all devices and its attachment are intact, and in the state that can come into operation.
（Two）, system puts into operation operation
1. when LNG tank cars need to unload liquid, the blower operations of LNG tank cars are first carried out.Please slowly open booster disengaging of unloading
Valve at mouthful opens the valve of BOG pipelines, its connecting line valve is closed, when LNG tank car pressure gauges show 0.5~0.6Mpa
When, LNG tank cars can be carried out at this time unloads liquid operation.
That slowly opens LNG tank cars unloads liquid valve, and slowly opens unload liquid pipeline valve successively, closes bypass connecting valve,
Tank car LNG enters air-heating type gasifier.
2. slowly opening the valve of an air-heating type gasifier inlet and outlet, and closes and prize into back-up vaporization
Exits and entrances valve absorbs the heat in surrounding air in air-heating type gasifier and rises when LNG is entered in air-heating type gasifier
Wet is melted into gas at normal temperature.
When needing to switch gasifier in use, be first shut off another gasifier (back-up vaporization sled) import and export valve,
Valve on LNG pipelines is slowly opened, LNG enters another gasifier (back-up vaporization sled) at this time, and closes used gasification
Device exits and entrances valve, switching gasifier operation are completed.
3. the natural gas after gasification enters in voltage-regulating system immediately, the wherein ball valve before and after pressure regulator all the way is slowly opened,
Natural gas enters after ball valve and filter in pressure regulator, then slowly opens the front and back ball valve of flowmeter, observes pressure gauge reading,
By adjusting the adjusting bolt of pressure regulator, it is allowed to outlet pressure and reaches operating pressure（0.25Mpa）.When the road pressure regulator operating mode tune
After steady, its front and back ball valve is closed, opens the front and back ball valve of another way pressure regulation, adjusts another way pressure regulator operating mode, method is same as above.
The setting value of pressure regulator does not need client and sets again, but encounter field working conditions and become after first setting
Change, when need to reset operating mode, client can reset working condition by primary methods.
Voltage-regulating system uses the pattern of the using and the reserved, when system in the event of failure, cuts off the system terminal valve all the way, opens
The terminal valve of the intact voltage-regulating system of another way is switched to the operation of another way voltage-regulating system, ensures that device runs without interruption.
4. when there is chance failure that the pressure in system is made to rise to the release pressure of Safety relief valve, put safely
Scattered valve can automatically turn on, and extra gas is bled off, and drop pressure in safe pressure limit.
5. add smelly operation, please the air outlet valve of device for adding odor is opened, when use is normally opened.
Conversely, closing air outlet valve without using when adding smelly, and odorization machine inlet valve is closed simultaneously.
6. safety, which is diffused, is a little equipped with leakage warning device, once there are Safety relief valve take-off and leakage, the warning device meeting
Sound and light alarm signal is sent out, staff is reminded.
7. device and component when repairing operation, have to ensure to carry out under secure conditions.
8. the BOG gases of LNG tank cars are in use, first open BOG pipe valves, closing is connected valve with BOG pipelines,
BOG natural gases after gasification heating enter in voltage-regulating system immediately, and method is ibid (see step 3.).
（Three）, system shutdown operation
1. deactivate in short-term, gasification sled, back-up vaporization sled and supercharging of unloading, BOG heating, pressure regulation metering can be added smelly sled
Exits and entrances valve close.
2. as down time is longer, gasification sled, back-up vaporization sled and supercharging of unloading, BOG heating, pressure regulation metering can be added
After the exits and entrances valve of smelly sled is closed, and remaining gas in pipeline is discharged totally, liquid end valve is unloaded by opening LNG tank cars
Door, and safety valve bypath valve.
Claims (7)
- The feeder 1. a kind of liquefied natural gas is met an urgent need, it is characterised in that：There are two the babinet of skid tape frame, the first babinets for tool In be equipped with and unload booster, BOG heaters, pressure regulator valve, flowmeter, device for adding odor, the import of the booster of unloading is supercharging Liquid phase mouth, the outlet of the booster of unloading are to unload liquid outlet, and the import of the BOG heaters is supercharging gas phase mouth, is equipped with gas Phase entrance and natural liquid gases gas vent, the gas phase entrance is connected to pressure regulator valve by the road, and is connected to day through flowmeter Right LNG gasifaction outlet, the outlet of the BOG heaters are connected to the pipeline that pressure regulator valve is connected to by gas phase entrance through threeway；The Gasifier is equipped in two babinets, the gasifier has gasifier import and gasifier exit；Each pipeline and import and export difference Equipped with valve；When use state, described to unload liquid outlet through connection by metal hose to gasifier import, gasifier exit is soft through metal Pipe is connected to gas phase entrance.
- The feeder 2. liquefied natural gas according to claim 1 is met an urgent need, it is characterised in that：It is described to unload in first babinet The setting of vehicle booster is arranged in babinet one end, the BOG heaters in the middle part of babinet, gas phase entrance, threeway, pressure regulator valve, flow Along pipeline around BOG heater settings, each outlet, entrance are located at the two of babinet for meter, device for adding odor, natural liquid gases gas vent A longer side face.
- The feeder 3. liquefied natural gas according to claim 2 is met an urgent need, it is characterised in that：In first babinet, unloads liquid and go out Mouth and gas phase entrance are located at the same side of babinet, and supercharging liquid phase mouth, supercharging gas phase mouth are located at another side of babinet.
- The feeder 4. liquefied natural gas according to claim 1 is met an urgent need, it is characterised in that：In first babinet, it is equipped with two Pressure regulation pipeline is covered, the gas phase entrance is connected to the first pressure regulator valve and the second pressure regulator valve, the first pressure regulator valve through corresponding valve respectively With the outlet of the second pressure regulator valve, two sets of surge pipe roads are setting up and down, and the projection in tank floor overlaps.
- The feeder 5. liquefied natural gas according to claim 1 is met an urgent need, it is characterised in that：It is and described in first babinet The connection of BOG heaters is equipped with safe releasing device.
- The feeder 6. liquefied natural gas according to claim 1 is met an urgent need, it is characterised in that：In second babinet, it is equipped with two Group gasifier, two groups of gasifiers are arranged in juxtaposition, and one of which gasifier is standby gasifier, the import point of two groups of gasifiers It is not connected to through metal hose and unloads liquid outlet, the outlet of two groups of gasifiers is connected to gas phase entrance through metal hose respectively.
- The feeder 7. liquefied natural gas according to claim 6 is met an urgent need, it is characterised in that：The gasifier is air temperature type Gasifier.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721866770.XU CN207702118U (en) | 2017-12-27 | 2017-12-27 | A kind of emergent feeder of liquefied natural gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721866770.XU CN207702118U (en) | 2017-12-27 | 2017-12-27 | A kind of emergent feeder of liquefied natural gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207702118U true CN207702118U (en) | 2018-08-07 |
Family
ID=63029388
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721866770.XU Expired - Fee Related CN207702118U (en) | 2017-12-27 | 2017-12-27 | A kind of emergent feeder of liquefied natural gas |
Country Status (1)
| Country | Link |
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| CN (1) | CN207702118U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109578805A (en) * | 2018-12-13 | 2019-04-05 | 华油天然气股份有限公司 | Unload liquid method in a kind of LNG skid station |
-
2017
- 2017-12-27 CN CN201721866770.XU patent/CN207702118U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109578805A (en) * | 2018-12-13 | 2019-04-05 | 华油天然气股份有限公司 | Unload liquid method in a kind of LNG skid station |
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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 |
Granted publication date: 20180807 Termination date: 20181227 |
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| CF01 | Termination of patent right due to non-payment of annual fee |