CN205535050U - Liquefied natural gas's gas supply system - Google Patents
Liquefied natural gas's gas supply system Download PDFInfo
- Publication number
- CN205535050U CN205535050U CN201620323234.4U CN201620323234U CN205535050U CN 205535050 U CN205535050 U CN 205535050U CN 201620323234 U CN201620323234 U CN 201620323234U CN 205535050 U CN205535050 U CN 205535050U
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- China
- Prior art keywords
- gas
- supply system
- air
- air supply
- liquefied natural
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- 239000007789 gas Substances 0.000 title claims abstract description 112
- 239000003949 liquefied natural gas Substances 0.000 title claims abstract description 36
- 239000007788 liquid Substances 0.000 claims abstract description 45
- 230000008016 vaporization Effects 0.000 claims abstract description 29
- 238000009834 vaporization Methods 0.000 claims abstract description 26
- 230000004308 accommodation Effects 0.000 claims abstract description 24
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 14
- 230000007704 transition Effects 0.000 claims description 7
- 230000015572 biosynthetic process Effects 0.000 claims description 2
- 230000006870 function Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000008450 motivation Effects 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
Landscapes
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
The utility model discloses a liquefied natural gas's gas supply system, including the gas cylinder, fix the guard circle of gas cylinder bottleneck end and be used for with liquid in the gas cylinder converts gaseous vaporization assembly into, the wallboard of guard circle is followed the outer wall of gas cylinder department upwards extend with form by the accommodation space that the wallboard encloses, the vaporization assembly is located in the accommodation space, the vaporization assembly include with liquid convert into gaseous heat exchanger with be used for keeping in through the buffer tank of the gas that the heat exchanger obtained after changeing, the heat exchanger pass through liquid outlet pipe with the liquid outlet of gas cylinder links to each other. The utility model discloses a gas supply system has increased the ground clearance of vaporization assembly to the assembly setting of will vaporizing is protected in the guard circle, avoids exposing outside, reduced with the interference in the external world, also reduced the risk of breaking and leaking simultaneously.
Description
Technical field
This utility model relates to the supply system of a kind of vehicle fuel, particularly relates to the air supply system of a kind of liquefied natural gas.
Background technology
The air supply system of traditional LNG automobile mainly by gas cylinder, add pneumatic module, integrated heat exchanger surge tank vaporization assembly and respectively for connect pipeline form.
General, aerating assembly is integrated on gas cylinder, vaporization assembly is arranged in the outside of gas cylinder, such as, on truck, gas cylinder is arranged on the outside of truck girder, vaporization assembly is arranged on the side of truck auxiliary girder, and owing to being limited by card bassinet structure, the spacing that vaporization assembly is liftoff is little, easily collide with, rupture and leakage equivalent risk occurs.
Utility model content
The purpose of this utility model is to solve the liftoff spacing of the vaporization assembly of liquefied natural gas supplying system of the prior art and less, easy collides with, unsafe technical problems such as rupture and leakage occur, and provides the air supply system of a kind of liquefied natural gas.
The utility model proposes the air supply system of a kind of liquefied natural gas, including gas cylinder, it is fixed on the guard circle of bottle mouth of gas cylinder end and for by vaporization assembly that the liquid transition in described gas cylinder is gas, the wallboard of described guard circle upwardly extends the accommodation space surrounded by described wallboard with formation at the outer wall of described gas cylinder, described vaporization assembly is positioned at described accommodation space, described vaporization assembly includes heat exchanger that liquid transition is gas and the surge tank that is used for the temporary gas obtained after described heat exchanger converts, described heat exchanger is connected with the liquid outlet of described gas cylinder by drain pipe road.
The air supply system of described liquefied natural gas, described heat exchanger and described surge tank are separated from each other, and described heat exchanger is connected by outlet pipe with described surge tank, and described outlet pipe is positioned at the accommodation space of described guard circle.
The air supply system of described liquefied natural gas, is provided with dispensing head at described bottle mouth of gas cylinder, described dispensing head is provided with gas returning port, fills mouth, emergency vent and described liquid outlet.
The air supply system of described liquefied natural gas, described heat exchanger includes inlet and gas outlet, and described drain pipe road connects described inlet, and described gas outlet is connected with the air inlet of described surge tank by described outlet pipe.
The air supply system of described liquefied natural gas; described air supply system also includes return-air assembly; described return-air assembly includes return line and for the return-air seat mated with outside return-air rifle; described return-air seat is fixed on the wallboard of described guard circle; described return line is arranged in the accommodation space of described guard circle, and described return line is used for connecting described return-air seat and described gas returning port.
The air supply system of described liquefied natural gas; described air supply system also includes topping up assembly; described topping up assembly includes liquid feeding pipeline and for filling seat with outside air filling gun mates; the described seat that fills is fixed on the wallboard of described guard circle; described liquid feeding pipeline is arranged in the accommodation space of described guard circle, and described liquid feeding pipeline be used for connecting described in fill seat and described fill mouth.
The air supply system of described liquefied natural gas; described air supply system also includes the Pressure gauge being arranged on the wallboard of described guard circle; described Pressure gauge is connected with described emergency vent by Pressure gauge pipeline, and described Pressure gauge pipeline is positioned at the accommodation space of described guard circle.
The air supply system of described liquefied natural gas, described air supply system also includes being arranged on the main safety valve at this emergency vent, and described main safety valve is automatically opening up when the air pressure in described gas cylinder exceedes preset air pressure value.
The air supply system of described liquefied natural gas; described guard circle is a hollow circular cylinder; described hollow circular cylinder be internally formed described accommodation space; described heat exchanger and described surge tank are positioned opposite and be close proximity to the inner surface of described guard circle wallboard, and described dispensing head is positioned at the central area of accommodation space.
The air supply system of described liquefied natural gas, described air supply system also includes a supercharging liquid outlet being arranged on described bottle mouth of gas cylinder end, described supercharging liquid outlet is positioned at the lower section of described bottle mouth of gas cylinder, described heat exchanger also includes supercharging inlet and supercharging gas outlet, described supercharging inlet is connected with described supercharging liquid outlet by supercharging drain pipe road, and described supercharging gas outlet is connected with described gas returning port by supercharging air outlet pipe road.
The air supply system of described liquefied natural gas, described air supply system also includes the pipeline safety valve being arranged on described supercharging air outlet pipe road, and described pipeline safety valve is for carrying out pressure release discharge to the gas in supercharging air outlet pipe road.
The air supply system of described liquefied natural gas, described surge tank is provided with air outlet adapter, and described air outlet adapter is connected with outside supply air line.
The air supply system of described liquefied natural gas, described air supply system also includes the water pipe joint being arranged on the wallboard of described guard circle, and described water pipe joint is connected with the cycle of engine water pipe of described heat exchanger.
Compared with prior art, this utility model has the advantages that
Vaporization assembly is arranged in the guard circle at bottle mouth of gas cylinder by air supply system of the present utility model; the road clearance vaporizing assembly is increased; vaporization assembly is arranged in guard circle simultaneously; this vaporization assembly is protected; avoid exposure to outside; decrease and extraneous interference, decrease the risk of rupture and leakage simultaneously.
Accompanying drawing explanation
Fig. 1 is the structural representation of this utility model liquefied natural gas supplying system.
Fig. 2 is the left side structure schematic diagram of Fig. 1.
Detailed description of the invention
In order to further illustrate principle of the present utility model and structure, in conjunction with accompanying drawing, preferred embodiment of the present utility model is described in detail.
As depicted in figs. 1 and 2, Fig. 1 is the structural representation of this utility model liquefied natural gas supplying system, and Fig. 2 is the left side structure schematic diagram of Fig. 1.The air supply system 100 of liquefied natural gas that this utility model provides, including gas cylinder 10, guard circle 20 and for by vaporization assembly 30 that the liquid transition in gas cylinder 10 is gas.
Gas cylinder 10 has two ends, and one end is the head end 11 being provided with bottle mouth of gas cylinder 51, and the other end is the bottom 12 closed.Guard circle 20 is fixed on gas cylinder 10 and is provided with on the head end 11 of bottle mouth of gas cylinder 51; the wallboard 21 of guard circle 20 upwardly extends at the outer wall of gas cylinder 10; and form an accommodation space, i.e. this accommodation space in surrounding the cylinder of a hollow, the cylinder of this hollow and surrounded by wallboard 21.
Vaporization assembly 30 is positioned at the accommodation space of guard circle 20; this vaporization assembly 30 includes heat exchanger 31 that liquid transition is gas and is used for the temporary surge tank 32 converting the gas obtained through heat exchanger 31, and this heat exchanger 31 is connected with the liquid outlet 41 of gas cylinder 10 by drain pipe road 331.
Bottle mouth of gas cylinder 51 is positioned at the central area of guard circle 20 accommodation space; and dispensing head 40 is installed on this bottle mouth of gas cylinder 51; this dispensing head 40 for being distributed into multiple function mouth in order to connect from different parts by a bottle mouth of gas cylinder 51, to realize topping up, return-air to gas cylinder, to go out the function such as liquid and aerofluxus.As in figure 2 it is shown, the function mouth on this dispensing head 40 includes: gas returning port 41, fill mouth 42, emergency vent 43 and liquid outlet 44.Those gas returning ports 41, filling mouth 42, emergency vent 43 and liquid outlet 44, each function mouth is connected with miscellaneous part by joint or pipeline.
Heat exchanger 31 and surge tank 32 are separated from each other, and are oppositely arranged, and are close proximity to the inner surface of guard circle 20 wallboard 21.
Heat exchanger 31 includes first end and the second end, and first end is provided with inlet 311, and the second end is provided with gas outlet 312.Surge tank 32 has both ends, being provided with air inlet 321 towards one end of heat exchanger 31, and setting is by gas outlet near air inlet 321, it is spare interface that this gas outlet is provided with air outlet adapter 322(), for being connected with outside supply air line, the other end is blind end.The inlet 311 of heat exchanger 31 is connected with liquid outlet 44 by drain pipe road 331, and gas outlet 312 is connected with the air inlet 321 of surge tank 32 by outlet pipe 332.
Cryogenic liquid in gas cylinder 10 is carried out heat exchange with its internal circulating water of engine by heat exchanger 31, cryogenic liquid or gas-liquid mixture are vaporized into and meet the gas at normal temperature that automobile engine use requires, and this gas at normal temperature is temporarily stored in surge tank 32, by the air outlet adapter 322 on surge tank 32, the gas in surge tank 32 is supplied automobile engine and use.
Heat exchanger 31 also includes the supercharging inlet 313 being arranged on first end and is arranged on the supercharging gas outlet 314 of the second end.One supercharging liquid outlet 52 is arranged on gas cylinder 10 and is provided with one end of bottle mouth of gas cylinder 51, and is positioned at the lower section of this bottle mouth of gas cylinder 51.Supercharging inlet 313 is connected with supercharging liquid outlet 52 by supercharging drain pipe road 333, and supercharging gas outlet 314 is connected with gas returning port 41 by supercharging air outlet pipe road 334.Supercharging drain pipe road 333 is provided with pressure charging valve 61.
When the force value that the gas pressure in gas cylinder 10 sets less than pressure charging valve 61, pressure charging valve 61 is opened, liquid in gas cylinder 10 enters heat exchanger 31 by supercharging liquid outlet 52 and supercharging drain pipe road 333, and after carrying out heat exchange with the circulating water of engine within heat exchanger 31, flow through supercharging air outlet pipe road 334 by supercharging gas outlet 314, and turned again in gas cylinder 10 by gas returning port 41.Liquid transition after heat exchange be hot gas again in returning to gas cylinder 10, make the pressure in gas cylinder 10 raise, when the pressure in gas cylinder 10 higher than pressure charging valve 61 set force value time, pressure charging valve 61 cuts out.
Preferably, supercharging air outlet pipe road 334 is provided with pipeline safety valve 62, for the gas in supercharging air outlet pipe road 334 is carried out pressure release discharge.When pressure charging valve 61 is opened because losing efficacy or be misused, heat exchanger the gas changed flows through supercharging air outlet pipe road 334, and the gas on supercharging air outlet pipe road 334 carries out pressure release discharge by pipeline safety valve 62, without entering in the gas cylinder 10 being made without supercharging.Ensure the safety of gas cylinder 10.
This air supply system 100 also includes return-air assembly, and this return-air assembly includes return line 71 and for the return-air seat 72 mated with outside return-air rifle.This return-air seat 72 is fixed on the wallboard 21 of guard circle 20, and this return-air seat 72 passes the outer surface of this wallboard 21 from the inner surface of wallboard 21.Return line 71 is used for connecting return-air seat 72 and gas returning port 41.Gases at high pressure in gas cylinder 10 are reclaimed by outside return-air rifle by this return-air assembly.
One end of one return-air main pipe rail 74 connects back to QI KOU 41, the other end is connected with return-air joint 73, this return-air joint 73 has multiple connector, return line 71 and supercharging air outlet pipe road 334 and is connected to return-air main pipe rail 74 by this return-air joint 73, and then is connected with gas returning port 41 by return-air main pipe rail 74.
This air supply system 100 also includes topping up assembly, and this topping up assembly includes liquid feeding pipeline 81 and for filling seat 82 with outside air filling gun mates.Fill seat 82 to be fixed on the wallboard 21 of guard circle 10, and this fills seat 82 and passes the outer surface of this wallboard 21 from the inner surface of wallboard 21.Liquid feeding pipeline 81 fills seat 82 for connection and fills mouth 42.Outside air filling gun fills seat 82 by this and fills liquid in gas cylinder 10, it is achieved the function of topping up.
This air supply system 100 also includes the Pressure gauge 91 being arranged on guard circle 10 wallboard 21 outer surface, and this Pressure gauge 91 is connected with emergency vent 43 by Pressure gauge pipeline 92 and is connected with the gas-phase space with gas cylinder 10.By the force value of this Pressure gauge 91 display, the pressure condition in gas cylinder 10 is monitored.
Being additionally provided with main safety valve 63 at this emergency vent 43, this main safety valve 63 is automatically opening up when the air pressure in gas cylinder 10 exceedes preset air pressure value, discharges with the gases at high pressure by gas cylinder 10, it is ensured that the safety of gas cylinder 10.
This air supply system 100 also includes the water pipe joint 93 being arranged on the wallboard 21 of guard circle 10, and this water pipe joint 93 is connected with the cycle of engine water pipe of heat exchanger 31.Carry out changing water by the electromotor of this water pipe joint 93 heat exchanger 31.
In addition; the various pipelines that above is referred to and various valve; such as; drain pipe road 331, outlet pipe 332, return line 71, liquid feeding pipeline 81, Pressure gauge pipeline 92, supercharging drain pipe road 333, supercharging air outlet pipe road 334 and return-air main pipe rail 75, pressure charging valve 61, pipeline safety valve 62, main safety valve 63 etc., be arranged in the accommodation space of guard circle 20.
Vaporization assembly is arranged in the guard circle at bottle mouth of gas cylinder by air supply system of the present utility model; the road clearance vaporizing assembly is increased; vaporization assembly is arranged in guard circle simultaneously; this vaporization assembly is protected; avoid exposure to outside; decrease and extraneous interference, decrease the risk of rupture and leakage simultaneously.
Additionally, the heat exchanger of vaporization assembly of the present utility model and surge tank are separated from each other so that this vaporization assembly more reasonably can be arranged, to save more space in the limited space of guard circle.
This utility model is by by positioned opposite to heat exchanger and surge tank; and dispensing head is arranged on the central area of guard circle; this heat exchanger and surge tank is made to arrange around this dispensing head; and return-air assembly, topping up assembly, each pipeline, each valve are also laid in this guard circle; make air supply system integrated level of the present utility model high; achieve the integration of air supply system, modularity, solve that existing air supply system structure is complicated, easily interferences, poor universality, after-sales service is difficult, the problem that cannot get ready the goods in high volume.Also solve air supply system to take up room big problem simultaneously.
In addition; dispensing head and heat exchanger, surge tank are arranged in the accommodation space that guard circle is limited; by the temperature of natural gas in the recirculated water of heat exchanger intrinsic motivation and surge tank, in guard circle, form the constant temperature space of a relative room temperature so that when cryogenic liquid from dispensing head out time; dispensing head will not freeze; also make each joint (such as, the joint on dispensing head, the joint on pipeline), the valve temperature difference the most stable simultaneously; make each joint, valve performance constant, it is ensured that air supply system safety.
Additionally, each parts (such as, vaporize assembly, return-air assembly, liquid feeding assembly), pipeline, valve are all integrated in guard circle, each parts, pipeline, valve are protected, prevents collide with damage, rupture and leakage risk equivalent risk.
These are only preferable possible embodiments of the present utility model, and unrestricted protection domain of the present utility model, the equivalent structure change done by all utilization this utility model description and accompanying drawing content, it is all contained in protection domain of the present utility model.
Claims (13)
1. the air supply system of a liquefied natural gas, it is characterized in that, including gas cylinder, it is fixed on the guard circle of bottle mouth of gas cylinder end and for by vaporization assembly that the liquid transition in described gas cylinder is gas, the wallboard of described guard circle upwardly extends the accommodation space surrounded by described wallboard with formation at the outer wall of described gas cylinder, described vaporization assembly is positioned at described accommodation space, described vaporization assembly includes heat exchanger that liquid transition is gas and the surge tank that is used for the temporary gas obtained after described heat exchanger converts, described heat exchanger is connected with the liquid outlet of described gas cylinder by drain pipe road.
The air supply system of liquefied natural gas the most according to claim 1; it is characterized in that; described heat exchanger and described surge tank are separated from each other, and described heat exchanger is connected by outlet pipe with described surge tank, and described outlet pipe is positioned at the accommodation space of described guard circle.
The air supply system of liquefied natural gas the most according to claim 2, it is characterised in that be provided with dispensing head at described bottle mouth of gas cylinder, described dispensing head is provided with gas returning port, fills mouth, emergency vent and described liquid outlet.
The air supply system of liquefied natural gas the most according to claim 3, it is characterised in that described heat exchanger includes inlet and gas outlet, described drain pipe road connects described inlet, and described gas outlet is connected with the air inlet of described surge tank by described outlet pipe.
The air supply system of liquefied natural gas the most according to claim 3; it is characterized in that; described air supply system also includes return-air assembly; described return-air assembly includes return line and for the return-air seat mated with outside return-air rifle; described return-air seat is fixed on the wallboard of described guard circle; described return line is arranged in the accommodation space of described guard circle, and described return line is used for connecting described return-air seat and described gas returning port.
The air supply system of liquefied natural gas the most according to claim 3; it is characterized in that; described air supply system also includes topping up assembly; described topping up assembly includes liquid feeding pipeline and for filling seat with outside air filling gun mates; the described seat that fills is fixed on the wallboard of described guard circle; described liquid feeding pipeline is arranged in the accommodation space of described guard circle, and described liquid feeding pipeline be used for connecting described in fill seat and described fill mouth.
The air supply system of liquefied natural gas the most according to claim 3; it is characterized in that; described air supply system also includes the Pressure gauge being arranged on the wallboard of described guard circle; described Pressure gauge is connected with described emergency vent by Pressure gauge pipeline, and described Pressure gauge pipeline is positioned at the accommodation space of described guard circle.
The air supply system of liquefied natural gas the most according to claim 3, it is characterised in that described air supply system also includes being arranged on the main safety valve at this emergency vent, described main safety valve is automatically opening up when the air pressure in described gas cylinder exceedes preset air pressure value.
The air supply system of liquefied natural gas the most according to claim 3; it is characterized in that; described guard circle is a hollow circular cylinder; described hollow circular cylinder be internally formed described accommodation space; described heat exchanger and described surge tank are positioned opposite and be close proximity to the inner surface of described guard circle wallboard, and described dispensing head is positioned at the central area of accommodation space.
The air supply system of liquefied natural gas the most according to claim 3, it is characterized in that, described air supply system also includes a supercharging liquid outlet being arranged on described bottle mouth of gas cylinder end, described supercharging liquid outlet is positioned at the lower section of described bottle mouth of gas cylinder, described heat exchanger also includes supercharging inlet and supercharging gas outlet, described supercharging inlet is connected with described supercharging liquid outlet by supercharging drain pipe road, and described supercharging gas outlet is connected with described gas returning port by supercharging air outlet pipe road.
The air supply system of 11. liquefied natural gas according to claim 10, it is characterized in that, described air supply system also includes the pipeline safety valve being arranged on described supercharging air outlet pipe road, and described pipeline safety valve is for carrying out pressure release discharge to the gas in supercharging air outlet pipe road.
The air supply system of 12. liquefied natural gas according to claim 1, it is characterised in that described surge tank is provided with air outlet adapter, described air outlet adapter is connected with outside supply air line.
The air supply system of 13. liquefied natural gas according to claim 1, it is characterised in that described air supply system also includes the water pipe joint being arranged on the wallboard of described guard circle, described water pipe joint is connected with the cycle of engine water pipe of described heat exchanger.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620323234.4U CN205535050U (en) | 2016-04-18 | 2016-04-18 | Liquefied natural gas's gas supply system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620323234.4U CN205535050U (en) | 2016-04-18 | 2016-04-18 | Liquefied natural gas's gas supply system |
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| Publication Number | Publication Date |
|---|---|
| CN205535050U true CN205535050U (en) | 2016-08-31 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201620323234.4U Active CN205535050U (en) | 2016-04-18 | 2016-04-18 | Liquefied natural gas's gas supply system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109058754A (en) * | 2018-09-10 | 2018-12-21 | 芜湖市海格瑞德科技有限责任公司 | A kind of anti-overcharge automobile-used LNG gas cylinder |
-
2016
- 2016-04-18 CN CN201620323234.4U patent/CN205535050U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109058754A (en) * | 2018-09-10 | 2018-12-21 | 芜湖市海格瑞德科技有限责任公司 | A kind of anti-overcharge automobile-used LNG gas cylinder |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |