CN203358333U - Side single gas cylinder LNG (liquefied natural gas) feed system for heavy truck - Google Patents
Side single gas cylinder LNG (liquefied natural gas) feed system for heavy truck Download PDFInfo
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- CN203358333U CN203358333U CN 201320445845 CN201320445845U CN203358333U CN 203358333 U CN203358333 U CN 203358333U CN 201320445845 CN201320445845 CN 201320445845 CN 201320445845 U CN201320445845 U CN 201320445845U CN 203358333 U CN203358333 U CN 203358333U
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- carburetter
- gas cylinder
- expansion tank
- liquefied natural
- natural gas
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Abstract
The utility model relates to a side single gas cylinder LNG (liquefied natural gas) feed system for a heavy truck. The side single gas cylinder LNG feed system comprises an LNG cylinder, a gas cylinder fixing support, a vaporizer buffer tank assembly, a low-pressure electromagnetic stop valve, a voltage stabilizer, a breather pipe and a water pipe, wherein the LNG cylinder, the vaporizer buffer tank assembly, the low-pressure electromagnetic stop valve, and the voltage stabilizer are fixed on a longitudinal beam of a frame; the vaporizer buffer tank assembly adopts an optimized structure and is hung on the lower side of the frame, the installing position of a buffer tank is higher than a lower airfoil surface of the frame through structure optimization, a ground clearance of the whole system is increased, and the carload trafficability characteristic is good.
Description
Technical field
The utility model belongs to the automotive fuel supply device field, refers to side list gas cylinder LNG feed system for a kind of heavy card.
Background technology
The LNG(liquefied natural gas) as a kind of fuel, day by day extensive in the application heavily blocked.The heavily card that adopts LNG to act as a fuel mainly contains following several advantage: 1, environmental benefit is good, and harmful content during exhaust emission is compared with Fuel Petroleum, and HC reduces by 80% left and right, and CO minimizing 92%, CO2 reduces by 25% left and right and noise also reduces; 2, improve the operating mode of lube system, not carbon deposit, without pollution and reduce the driving engine component wear, make service life of aeroengine generally extend more than 2 times; 3, LNG (liquefied natural gas) compares with CNG (compression natural gas), and it is that blue gas is main, easily installs, high temperature resistant, and severe cold prevention is safe and reliable, easy to operate and storage drum pressure is low, and volume is little, light capacity, and reserves are large; 4, good economy performance, operating cost is low, and service expenditure is low.
The mounting means that existing heavy card is pressed liquefied natural gas bottle with the LNG feed system is divided, and can be divided into rear-mounted and side-mounted two large classes.
In rear-mounted LNG feed system, all integrated installation is in a framework for the assemblies such as liquefied natural gas bottle, carburetter, expansion tank, and whole framework is fixed on vehicle frame by the framework auxiliary girder again, and this rear-mounted cover system is mainly used in heavily blocking on tractor truck.
In side-mounted LNG feed system, liquefied natural gas bottle, carburetter, expansion tank etc. are that split is arranged separately, and this side-mounted cover system is mainly applied on engineering dump truck.The applying working condition of dumping car is relatively severe, draws coal through the mining area of being everlasting, draws sandstone, and road bump was had relatively high expectations to the ground Clearance of car load, the low crossing ability that can affect car load of ground Clearance.Liquefied natural gas bottle in existing side-mounted LNG feed system, and carburetter expansion tank assembly arrangement form have two kinds, a kind of is that liquefied natural gas bottle and carburetter expansion tank assembly are arranged in vehicle frame homonymy (outside), and another kind is that liquefied natural gas bottle and carburetter expansion tank assembly are arranged in respectively vehicle frame both sides (outside); It is all larger that these two kinds of arrangement forms take the frame sides space of planes, can affect the layout of other assemblies on car load, also can affect user's repacking (installing water tank and side guard rail etc. for water storage additional).
On liquefied natural gas bottle in the LNG feed system, carry a set of self-supercharging device, when supercharging is opened, need to guarantee that all shutoff valves except supercharging shutoff valve (PV) are in closed condition, like this gas cylinder and can form an airtight cyclic space from pressure piping.Open supercharging shutoff valve (PV), cryogenic liquid is by the control cock that boosts (PBr), then pass through from supercharging coil pipe (Pr) and be heated to form saturated steam, enter gas cylinder gas-phase space (top), due to the liquid-gas ratio of liquefied natural gas large (1:600), therefore exporting less liquid can become a large amount of steam, this is an airtight cyclic space simultaneously, that is to say that the gas volume of increase is far longer than the liquid volume of output, there is again gas to there is compressibility, thereby make the pressure of gas cylinder raise.When storage pressure rises to the pressure (setting pressure of the control cock that boosts) needed, the control cock that boosts (PBr) is closed automatically, and storage pressure no longer raises, and it is stable that pressure maintains.
In the self-supercharging device of existing LNG feed system, liquefied natural gas is by carrying out interchange of heat from supercharging coil pipe (Pr) and air, and this covering device is called empty bath formula self-supercharging device.
The principle of work of existing side LNG feed system is basic identical, is mainly arrangement form and slightly different from the mode of supercharging.
The main deficiency of prior art is, carburetter expansion tank assembly is arranged in vehicle frame side (outside), takes up room excessive, and the layout of other assembly of car load is limited to; Adopt empty bath formula from supercharging, vaporization efficency is lower, and device is complicated, and cost is high.
The utility model content
In order to overcome the deficiencies in the prior art, the utility model provides an improvement technical scheme, by optimizing carburetter expansion tank assembly, can be placed in the vehicle frame downside, has saved the arrangement space of frame outside, makes other assembly can more reasonably be arranged in frame outside.
The utility model is achieved through the following technical solutions:
Side list gas cylinder LNG feed system for a kind of heavy card, include liquefied natural gas bottle, gas cylinder fixing support, carburetter expansion tank assembly, low voltage electromagnetic shutoff valve, voltage stabilizer, breather pipe and water pipe; Described liquefied natural gas bottle is fixed on gas cylinder fixing support, and described gas cylinder fixing support is fixed on chassis side rail; Carburetter expansion tank assembly includes carburetter and expansion tank, and carburetter expansion tank assembly is fixed on chassis side rail; Low voltage electromagnetic shutoff valve and voltage stabilizer also are fixed on chassis side rail; Between liquefied natural gas bottle and carburetter, between carburetter and expansion tank, between expansion tank and low voltage electromagnetic shutoff valve, between low voltage electromagnetic shutoff valve and voltage stabilizer and between voltage stabilizer and engine inlet port, all with tracheae, be connected; The water inlet of carburetter is connected by water pipe with water inlet with the water return outlet of driving engine respectively with water return outlet.
Further, also include band assembly, liquefied natural gas bottle is fixed on gas cylinder fixing support.
Carburetter and expansion tank are fixed with a support.
Expansion tank is arranged in the carburetter top.
Liquefied natural gas bottle, carburetter expansion tank assembly, low voltage electromagnetic shutoff valve and voltage stabilizer are fixed on different longerons.
The utility model beneficial effect compared with the existing technology is:
Self-supercharging device and carburetter are combined, both improved the vaporization efficency from pressure charging system, cost-saving again.Carburetter expansion tank assembly is carried out to structure optimization, can be placed in the vehicle frame downside, reduced arrangement space, also improve the ground Clearance as much as possible.
The accompanying drawing explanation
Fig. 1 is the utility model LNG feed system front view;
Fig. 2 is the utility model LNG feed system birds-eye view;
Fig. 3 is pipeline connection diagram between liquefied natural gas bottle and carburetter expansion tank assembly;
Fig. 4 is liquefied natural gas bottle scheme of installation in the utility model;
Fig. 5 is carburetter expansion tank assembly scheme of installation in the utility model.
The specific embodiment
Describe by the following examples the technical solution of the utility model in detail, should be understood that, following embodiment is only exemplary, only can be used for explaining and the explanation the technical solution of the utility model, and can not to be interpreted as is the restriction to technical solutions of the utility model.
As shown in Figures 1 to 5, the assembly of this LNG feed system comprises liquefied natural gas bottle 1, gas cylinder fixing support 2, band assembly 3, metal wire net flexible hose 7, carburetter expansion tank assembly 4, low voltage electromagnetic shutoff valve 5, voltage stabilizer 6 and rubber tube 8.
In carburetter expansion tank assembly 4, carburetter and expansion tank share a support, and expansion tank is arranged in the carburetter top, by the preferred arrangement form, the installation site of carburetter expansion tank assembly are improved.
Use bolt, nut is fixed on gas cylinder fixing support 2 on the vehicle frame right vertical beam, also can be fixed on as required on the left longeron of vehicle frame, with band assembly 3, liquefied natural gas bottle 1 is fixed on gas cylinder fixing support 2, use bolt, nut is fixed on carburetter expansion tank assembly 4 on the vehicle frame right vertical beam, use bolt, nut is fixed on low voltage electromagnetic shutoff valve 5 on the vehicle frame right vertical beam, use bolt, nut is fixed on voltage stabilizer 6 on the vehicle frame right vertical beam, liquefied natural gas bottle 1 is connected with metal knitted pipe 7 with 4 of carburetter expansion tank assemblies, carburetter expansion tank assembly 4 is connected with metal knitted pipe 7 with 5 of low pressure shutoff valves, low voltage electromagnetic shutoff valve 5 is connected with metal wire net flexible hose 7 with 6 of voltage stabilizers, between voltage stabilizer 6 and engine inlet port, with metal wire net flexible hose 7, be connected, all pipelines junction all adopts the 3/4-16UNF screw thread and is wound around the raw material band sealing.Be connected by rubber tube 8 between the water inlet on carburetter expansion tank assembly 4 and water return outlet and driving engine water return outlet and water inlet, seal with clip.
The liquefied natural gas bottle effect is to substitute fuel tank of vehicle splendid attire, storage and feed fuels; Carburetter is mainly to utilize the cycle of engine cooling water expansion tank that liquefied natural gas is heated to vaporization, natural fuels is reached and meet driving engine serviceability temperature, traffic requirement.The effect of expansion tank is a certain amount of gas of deposit, in case of need; The effect of electromagnetic valve is to close or in backseat and engine off ignition lock during still in opening, valve can stop the natural fuels flow direction engine in closed condition, prevents natural gas leaking when engine ignition switch; The Main Function of voltage stabilizer is reduced pressure the natural fuels after the carburetter vaporization, makes it to meet the working pressure requirement of driving engine, and keeps pressure stability.
In the present embodiment, the volume of liquefied natural gas bottle comprises: 240L, 275L, 330L, 375L, 450L, 500L.
In the application's embodiment, liquefied natural gas bottle and carburetter expansion tank assembly can be arranged in vehicle frame one side simultaneously, also can be arranged in respectively the vehicle frame both sides.
In the application, the support intensity of use is high, and safety is good; The pipeline used moves towards smooth-going, adopts the taper thread sealing, good reliability.
In carburetter, the flow direction of circulating hot water is consistent with the flow direction of liquefied natural gas, guarantees that carburetter air extractor duct place natural gas temperature can be not too high, and after intake temperature surpasses 60 °, intake temperature raises, and combustion efficiency reduces.
Carburetter expansion tank assembly adopts the structure after optimizing, and is placed in the vehicle frame downside, by structure optimization, makes the expansion tank installation site higher than the vehicle frame lower aerofoil, and the ground Clearance of whole system improves, and the car load crossing ability is good.
Although illustrated and described embodiments of the invention, for the ordinary skill in the art, be appreciated that without departing from the principles and spirit of the present invention and can carry out multiple variation, modification, replacement and modification to these embodiment, scope of the present invention is by claims and be equal to and limit.
Claims (5)
1. one kind is heavily blocked the feed system with side list gas cylinder LNG, it is characterized in that: include liquefied natural gas bottle, gas cylinder fixing support, carburetter expansion tank assembly, low voltage electromagnetic shutoff valve, voltage stabilizer, breather pipe and water pipe; Described liquefied natural gas bottle is fixed on gas cylinder fixing support, and described gas cylinder fixing support is fixed on chassis side rail; Carburetter expansion tank assembly includes carburetter and expansion tank, and carburetter expansion tank assembly is fixed on chassis side rail; Low voltage electromagnetic shutoff valve and voltage stabilizer also are fixed on chassis side rail; Between liquefied natural gas bottle and carburetter, between carburetter and expansion tank, between expansion tank and low voltage electromagnetic shutoff valve, between low voltage electromagnetic shutoff valve and voltage stabilizer and between voltage stabilizer and engine inlet port, all with tracheae, be connected; The water inlet of carburetter is connected by water pipe with water inlet with the water return outlet of driving engine respectively with water return outlet.
2. side list gas cylinder LNG feed system for heavy card according to claim 1, is characterized in that: also include band assembly, liquefied natural gas bottle is fixed on gas cylinder fixing support.
3. side list gas cylinder LNG feed system for heavy card according to claim 1, it is characterized in that: carburetter and expansion tank are fixed with a support.
4. according to side list gas cylinder LNG feed system for the described heavy card of claim 1 or 3, it is characterized in that: expansion tank is arranged in the carburetter top.
5. side list gas cylinder LNG feed system for heavy card according to claim 1, it is characterized in that: liquefied natural gas bottle, carburetter expansion tank assembly, low voltage electromagnetic shutoff valve and voltage stabilizer are fixed on different longerons.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320445845 CN203358333U (en) | 2013-07-24 | 2013-07-24 | Side single gas cylinder LNG (liquefied natural gas) feed system for heavy truck |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320445845 CN203358333U (en) | 2013-07-24 | 2013-07-24 | Side single gas cylinder LNG (liquefied natural gas) feed system for heavy truck |
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| Publication Number | Publication Date |
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| CN203358333U true CN203358333U (en) | 2013-12-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320445845 Expired - Fee Related CN203358333U (en) | 2013-07-24 | 2013-07-24 | Side single gas cylinder LNG (liquefied natural gas) feed system for heavy truck |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016169134A1 (en) * | 2015-04-21 | 2016-10-27 | 山推工程机械股份有限公司 | Bulldozer having lng gas supply system |
| CN109073161A (en) * | 2016-04-26 | 2018-12-21 | 斯堪尼亚商用车有限公司 | LNG truck and method for assembling LNG truck |
| CN114274767A (en) * | 2021-12-31 | 2022-04-05 | 安徽江淮汽车集团股份有限公司 | Gas supply system of compressed natural gas vehicle |
-
2013
- 2013-07-24 CN CN 201320445845 patent/CN203358333U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016169134A1 (en) * | 2015-04-21 | 2016-10-27 | 山推工程机械股份有限公司 | Bulldozer having lng gas supply system |
| CN109073161A (en) * | 2016-04-26 | 2018-12-21 | 斯堪尼亚商用车有限公司 | LNG truck and method for assembling LNG truck |
| CN114274767A (en) * | 2021-12-31 | 2022-04-05 | 安徽江淮汽车集团股份有限公司 | Gas supply system of compressed natural gas vehicle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: Hefei City, Anhui Province, 230022 East Road No. 176 Patentee after: Anhui Jianghuai Automobile Group Limited by Share Ltd Address before: Hefei City, Anhui Province, 230022 East Road No. 176 Patentee before: Anhui Jianghuai Automobile Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131225 Termination date: 20190724 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |