CN208169992U - A kind of natural gas charging system - Google Patents
A kind of natural gas charging system Download PDFInfo
- Publication number
- CN208169992U CN208169992U CN201820491357.8U CN201820491357U CN208169992U CN 208169992 U CN208169992 U CN 208169992U CN 201820491357 U CN201820491357 U CN 201820491357U CN 208169992 U CN208169992 U CN 208169992U
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- CN
- China
- Prior art keywords
- ammonia
- air duct
- natural gas
- storage tank
- lng
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses a kind of natural gas charging systems, including LNG storage tank, LNG dispenser and the air duct for connecting LNG storage tank and LNG dispenser, it is provided with pressure-resistant sleeve to the external segmentation of air duct, pressure-resistant sleeve covers on the outside of air duct, and pressure-resistant sleeve, supercharging device, condenser and liquid ammonia storage tank, which pass sequentially through, send ammonia pipeline to connect to form ammonia circulation line.Moment of the charging system before filling natural gas to vehicle, chilldown system pre-cooling, liquid pump pumps out the liquefied ammonia in liquid ammonia storage tank, for liquefied ammonia along sending ammonia pipeline to flow into pressure-resistant sleeve, liquefied ammonia absorbs the heat on air duct after contacting with air duct, it is made to cool down rapidly, to play the role of pre-cooling, it would not be volatilized into natural gas gas when flowing in air duct as LNG in this way, to not interfere with the accuracy of metering, car owner or gas station is avoided to suffer a loss.
Description
Technical field
The utility model relates to a kind of combustion gas filling equipments, more specifically, it relates to a kind of natural gas charging system.
Background technique
It is increasingly exhausted and environment continuous worsening with petroleum, it is extremely urgent using clean energy resource, as a kind of novel
The energy, natural gas gradually popularizing in the application of automobile industry, and the polluted gas that combustion of natural gas generates is less, thus has
Conducive to improvement air quality.
Current hybrid electric vehicle（That is fuel oil and combustion gas）It realizes long-range continuation of the journey, just has to setting gas station.It is existing
The natural gas charging gas that is equipped with of gas station generally comprise LNG storage tank, LNG dispenser and connection LNG storage tank and LNG aerating
The air duct of machine, since LNG is the liquified natural gas of cryogenic freezing, and the temperature of air duct is consistent with environment temperature, institute
When LNG in air duct along flowing, can be heated and volatilize natural gas gas during giving vehicle inflatable, and by
It is to count the volume of LNG in the metering method of inflation, so the natural gas gas of volatilization will certainly impact metering, makes
It measures not accurate enough, brings loss to car owner or gas station.
Utility model content
In view of the deficienciess of the prior art, the purpose of this utility model is to provide one kind natural gas charging system,
It can reduce loss with the higher accuracy of measuring.
To achieve the above object, the utility model provides following technical solution：
A kind of natural gas charging system, including LNG storage tank, LNG dispenser and connection LNG storage tank and LNG dispenser
Air duct, air duct are stereoplasm tube, are provided with to the external segmentation of the air duct pressure-resistant sleeve, the pressure resistance sleeve
The outside of air duct is covered on, the both ends of the pressure resistance sleeve are provided with sealing ring, and the pressure resistance sleeve has inlet and outlet,
The outlet of the pressure resistance sleeve is by the import for sending ammonia pipeline to connect supercharging device, and the outlet of the supercharging device is by sending ammonia pipe
Road connects the import of condenser, and the outlet of the condenser passes through the import of sending ammonia pipeline to connect liquid ammonia storage tank, the liquefied ammonia storage
The outlet of tank by the import of sending ammonia pipeline to connect liquid pump, the outlet of the liquid pump by send ammonia pipeline connect pressure-resistant sleeve into
Mouthful.
Preferably：The outer surface of the pressure resistance sleeve is provided with thermal insulation layer.
Preferably：The outer surface for sending ammonia pipeline and liquid ammonia storage tank is provided with thermal insulation layer.
Preferably：The thermal insulation layer is double-layer structure, including being located at the rock wool layer of internal layer and positioned at the aluminium of outer layer
Layers of foil.
Preferably：The pressure resistance sleeve is stainless steel cylinder.
Preferably：The supercharging device is screw compressor.
Compared with prior art, the utility model has the advantages that：Wink of the charging system before filling natural gas to vehicle
Between, chilldown system pre-cooling, liquid pump pumps out the liquefied ammonia in liquid ammonia storage tank, and liquefied ammonia flows into pressure-resistant sleeve along sending ammonia pipeline
Interior, liquefied ammonia absorbs the heat on air duct after contacting with air duct, it is made to cool down rapidly, thus play the role of pre-cooling,
It would not be volatilized into natural gas gas when flowing in air duct as LNG in this way, so that the accuracy of metering is not interfered with,
Car owner or gas station is avoided to suffer a loss.
Detailed description of the invention
Fig. 1 is the external structure schematic diagram of charging system；
Fig. 2 is the structure principle chart of charging system.
Description of symbols:1, LNG storage tank；2, LNG dispenser；3, air duct；4, pressure-resistant sleeve；5, sealing ring；6,
Supercharging device；7, condenser；8, liquid ammonia storage tank；9, liquid pump；10, thermal insulation layer.
Specific embodiment
Referring to Fig.1, a kind of natural gas charging system, including LNG storage tank 1 and LNG dispenser 2 further include connection LNG storage tank
The air duct 3 of 1 and LNG dispenser 2, air duct 3 are stereoplasm tube.
Referring to Fig. 2, air duct 3 external segmentation be provided with pressure-resistant sleeve 4, pressure-resistant sleeve 4 covers on air duct 3
Outside, the both ends of pressure-resistant sleeve 4 are provided with sealing ring 5, pressure-resistant sleeve 4 has inlet and outlet, the outlet of pressure-resistant sleeve 4
By the import for sending ammonia pipeline to connect supercharging device 6, the outlet of supercharging device 6 by the import of sending ammonia pipeline to connect condenser 7,
The outlet of condenser 7 is by the import for sending ammonia pipeline to connect liquid ammonia storage tank 8, and the outlet of liquid ammonia storage tank 8 is by sending ammonia pipeline to connect
The import of liquid pump 9, the outlet of liquid pump 9 pass through the import of sending ammonia pipeline to connect pressure-resistant sleeve 4.
The charging system adds when filling natural gas to vehicle when LNG flows to LNG from LNG storage tank 1 by air duct 3
When mechanism of qi 2, if chilldown system is inactive, since the temperature of air duct 3 is higher, LNG can be heated, to can play natural
Gas gas.
And moment of the charging system before filling natural gas to vehicle, chilldown system pre-cooling, liquid pump 9 store up liquefied ammonia
Liquefied ammonia in tank 8 pumps out, and along sending ammonia pipeline to flow into pressure-resistant sleeve 4, liquefied ammonia absorbs after contacting with air duct 3 supplies gas liquefied ammonia
Heat on pipeline 3, makes it cool down rapidly, to play the role of pre-cooling, when flowing in air duct 3 as LNG so just
It will not be volatilized into natural gas gas, to not interfere with the accuracy of metering, car owner or gas station is avoided to suffer a loss.
After liquefied ammonia in pressure-resistant sleeve 4 absorbs the heat of air duct 3, part ammonia, liquefied ammonia and ammonia one can be volatilized
Inflow supercharging device 6 is played, major part ammonia becomes liquefied ammonia when the high pressure of supercharging device 6, and subsequent liquefied ammonia and a small amount of ammonia flow through
Condenser 7, ammonia all becomes liquefied ammonia when condenser 7, and flow back to liquid ammonia storage tank 8 in this way is just liquefied ammonia entirely, so recycles.
Herein on basis, the outer surface of pressure-resistant sleeve 4 is also provided with thermal insulation layer 10, is transferred to obstructing external heat
Pressure-resistant sleeve 4 is caused to heat up on pressure-resistant sleeve 4；In addition, heat-insulated sending the outer surface of ammonia pipeline and liquid ammonia storage tank 8 to be also equipped with
Layer 10, to further decrease influence of the ambient temperature to chilldown system.
In the present embodiment, thermal insulation layer 10 is double-layer structure comprising the rock wool layer positioned at internal layer and the aluminium foil positioned at outer layer
Layer.
Pressure-resistant sleeve 4 is stainless steel cylinder；Supercharging device 6 is screw compressor.
The above is only the preferred embodiment of the utility model, and the protection scope of the utility model is not limited merely to
Above-described embodiment, technical solution belonging to the idea of the present invention belong to the protection scope of the utility model.It should refer to
Out, for those skilled in the art, it is without departing from the principle of the utility model it is several improvement and
Retouching, these improvements and modifications also should be regarded as the protection scope of the utility model.
Claims (6)
1. a kind of natural gas charging system, sending including LNG storage tank, LNG dispenser and connection LNG storage tank and LNG dispenser
Feed channel, air duct are stereoplasm tube, it is characterized in that：It is provided with to the external segmentation of the air duct pressure-resistant sleeve, it is described
Pressure-resistant sleeve covers on the outside of air duct, and the both ends of the pressure resistance sleeve are provided with sealing ring, the pressure resistance sleeve have into
Mouthful and outlet, it is described pressure resistance sleeve outlet by send ammonia pipeline connect supercharging device import, the outlet of the supercharging device
By the import for sending ammonia pipeline to connect condenser, the outlet of the condenser by the import of sending ammonia pipeline to connect liquid ammonia storage tank,
The outlet of the liquid ammonia storage tank is by the import for sending ammonia pipeline to connect liquid pump, and the outlet of the liquid pump is by sending the connection of ammonia pipeline resistance to
The import of pressing sleeve cylinder.
2. natural gas charging system according to claim 1, it is characterized in that：It is described pressure resistance sleeve outer surface be provided with every
Thermosphere.
3. natural gas charging system according to claim 1, it is characterized in that：The appearance for sending ammonia pipeline and liquid ammonia storage tank
Face is provided with thermal insulation layer.
4. natural gas charging system according to claim 2 or 3, it is characterized in that：The thermal insulation layer is double-layer structure, including
Rock wool layer positioned at internal layer and the aluminium foil layer positioned at outer layer.
5. natural gas charging system according to claim 1, it is characterized in that：The pressure resistance sleeve is stainless steel cylinder.
6. natural gas charging system according to claim 1, it is characterized in that：The supercharging device is screw compressor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820491357.8U CN208169992U (en) | 2018-04-09 | 2018-04-09 | A kind of natural gas charging system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820491357.8U CN208169992U (en) | 2018-04-09 | 2018-04-09 | A kind of natural gas charging system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208169992U true CN208169992U (en) | 2018-11-30 |
Family
ID=64373853
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820491357.8U Expired - Fee Related CN208169992U (en) | 2018-04-09 | 2018-04-09 | A kind of natural gas charging system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208169992U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110345386A (en) * | 2019-07-19 | 2019-10-18 | 中冶焦耐(大连)工程技术有限公司 | A kind of LNG pipeline pre-cooling technique of self-circulation type |
-
2018
- 2018-04-09 CN CN201820491357.8U patent/CN208169992U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110345386A (en) * | 2019-07-19 | 2019-10-18 | 中冶焦耐(大连)工程技术有限公司 | A kind of LNG pipeline pre-cooling technique of self-circulation type |
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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: 20181130 Termination date: 20210409 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |