CN204003158U - A kind of Vehicular liquefied gas fuel device - Google Patents
A kind of Vehicular liquefied gas fuel device Download PDFInfo
- Publication number
- CN204003158U CN204003158U CN201420396276.1U CN201420396276U CN204003158U CN 204003158 U CN204003158 U CN 204003158U CN 201420396276 U CN201420396276 U CN 201420396276U CN 204003158 U CN204003158 U CN 204003158U
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- CN
- China
- Prior art keywords
- pressure
- liquefied gas
- transmitter
- gas fuel
- vehicular liquefied
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- 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.)
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/30—Use of alternative fuels, e.g. biofuels
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- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
The utility model discloses a kind of Vehicular liquefied gas fuel device, comprise fuel gas cylinder, gasifying pipe and pressure monitoring and controlling device, described pressure monitoring and controlling device comprises for measuring the first pressure meter of fuel gas pressure of the inside of a bottle, for measuring the second pressure meter of gasifying pipe internal pressure, be used for the transmitter that receives the first pressure meter and the second pressure meter two-way pressure signal and export control signal, it is characterized in that: also comprise and be located on gasifying pipe and be positioned on described the second pressure meter pressure regulator valve before, transmitter feeds back to described pressure regulator valve to control gasifying pipe pressure by control signal.The utility model can be monitored the pressure of fuel gas cylinder and gasifying pipe, reduces peril and occurs.
Description
Technical field
The utility model relates to Liquefied Natural Gas fuel supplier, and concrete is a kind of Vehicular liquefied gas fuel device.
Background technique
Liquefied Natural Gas fuel cost is low, and in composition, major part is methane, and after burning, harmful components are less, uses comparatively extensive in full-sized car.LNG Liquefied natural gas is carried out accumulating and use after changing gaseous state shape rock gas into liquid state by compression and refrigerating work procedure, and in the fuel-device of generally using at automobile, compression volume ratio is 625:1.Rock gas has certain risk as fuel, the rock gas of boil down to liquid state has very large pressure in fuel gas cylinder, once appearance of abnormal pressure, be easy to blast, that setting pressure meter monitors to solve gas cylinder internal pressure abnormal problem to its pressure in gas cylinder at present, in fact, pressure anomaly in gasifying pipe, equally may be accidents caused, be presented as that pipe leakage or gas cylinder internal pressure involve extremely, thereby need to the pressure in gasifying pipe carried out effective monitoring and in time it be adjusted.
Model utility content
The purpose of this utility model is to provide a kind of Vehicular liquefied gas fuel device, can monitor the pressure of fuel gas cylinder and gasifying pipe, reduces peril and occurs.
In order to solve the problems of the technologies described above, the utility model adopts following technological scheme: a kind of Vehicular liquefied gas fuel device, comprise fuel gas cylinder, gasifying pipe and pressure monitoring and controlling device, described pressure monitoring and controlling device comprises for measuring the first pressure meter of fuel gas pressure of the inside of a bottle, for measuring the second pressure meter of gasifying pipe internal pressure, be used for the transmitter that receives the first pressure meter and the second pressure meter two-way pressure signal and export control signal, and be located on gasifying pipe and be positioned on the second pressure meter pressure regulator valve before, transmitter feeds back to described pressure regulator valve to control gasifying pipe pressure by control signal.
Preferably, fuel gas cylinder gas-phase space is run through to inserting in liquid Space in described the first manometric body portion, and its head exposes and is connected with transmitter.
Preferably, described pressure regulator valve comprises subnormal the first valve position of pipeline pressure and pipeline pressure the second valve position under abnormal.
Preferably, also comprise transmission part, by transmission part, receive transmitter control signal transmission pressure regulator valve to corresponding valve position.
Preferably, described pressure regulator valve is provided with for regulating the handwheel of valve position, and described transmission part drives handwheel rotation.
Preferably, described pressure regulator valve can manual tune valve position.
Preferably, described the second valve position comprises the sub-valve position of the corresponding preset pressure of a plurality of correspondences.
Preferably, also comprise vehicle display device, transmitter exports control signal to described vehicle display device and shows.
Preferably, between described vehicle display device and transmitter, by CANOPEN EBI, communicate by letter.
Preferably, also comprise warning device, it connects transmitter and reports to the police accordingly according to control signal.
Adopt after technique scheme, the utility model compared with prior art has following outstanding advantages: the utility model is installed pressure regulator valve on gasifying pipe, and be subject to transmitter regulating and controlling gasifying pipe internal pressure, by the first pressure meter on gas cylinder and the measured pressure of the second pressure meter on gasifying pipe, after transmitter is processed conversion, export control signal, this control signal is used for controlling pressure regulator valve to realize the pressure of controlling automatically, in time gasifying pipe.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the utility model embodiment's Vehicular liquefied gas fuel device;
Fig. 2 is the structural representation of the utility model embodiment's the associated pressure regulator valve of transmission part.
Embodiment
For above-mentioned purpose of the present utility model, feature and advantage can be become apparent more, below in conjunction with accompanying drawing, embodiment of the present utility model is described in detail.
A lot of details have been set forth in the following description so that fully understand the utility model.But the utility model can be implemented to be much different from alternate manner described here, those skilled in the art can do similar popularization without prejudice to the utility model intension in the situation that, so the utility model is not subject to the restriction of following public concrete enforcement and concrete accompanying drawing.
Fig. 1 illustrates a kind of Vehicular liquefied gas fuel device of the present embodiment, comprises fuel gas cylinder 1, gasifying pipe and pressure monitoring and controlling device.This fuel-device is loaded on the removable facilities such as automobile as energy resource supply, and fuel-device is connected with motor, and LNG Liquefied natural gas wherein transfers in motor automobile is started through decompression gasification.
In order to overcome in prior art, can only on pressure meter, read and defect that cannot automatic pressure regulation the pressure in fuel gas cylinder, described pressure monitoring and controlling device comprises for measuring the first pressure meter P1 of fuel gas pressure of the inside of a bottle, for measuring the second pressure meter P2 of gasifying pipe internal pressure, be used for the transmitter 2 that receives the first pressure meter P1 and the second pressure meter P2 two-way pressure signal and export control signal, and be located on gasifying pipe and be positioned on the second pressure meter P2 pressure regulator valve 3 before, transmitter 2 feeds back to described pressure regulator valve 3 to control gasifying pipe pressure by control signal, the output connecting engine of the second pressure meter P2.As preferred embodiment, the first pressure meter P1 and the second pressure meter P2 adopt the Silicon pressure transmitter of industrial maturation, both control its precision ± 1%, about 100ms of response time, because fuel gas cylinder 1 internal pressure is larger, first pressure meter P1 selected range scope 0～4MPa, and reduced pressure in gasifying pipe, second pressure meter P2 selected range scope 0～0.4MPa, transmitter 2 connects the first pressure meter P1 and the second pressure meter P2, both pressure signals are become and send output, in the present embodiment, the pressure signal of the second pressure meter P2, the difference of the first pressure meter P1 pressure signal and the second pressure meter P2 pressure signal is controlled pressure regulator valve 3 as control signal jointly, pressure regulator valve 3 is loaded in and on gasifying pipe, controls the pressure in gasifying pipe, and the pressure signal of the second pressure meter P2 can reflect that the pressure in gasifying pipe correspondingly moves to control pressure regulator valve 3, the pressure signal that the first pressure meter P1 records also means that the pressure signal of the second pressure meter P2 has certain change while changing conventionally, the difference of the first pressure meter P1 pressure signal and the second pressure meter P2 pressure signal makes pressure regulator valve 3 actions more have foundation as another control signal, the action of pressure regulator valve 3 can change gasifying pipe internal pressure.
Concrete, in fuel gas cylinder 1, be not all full of liquid rock gas, it comprises liquid Space and gas-phase space, fuel gas cylinder gas-phase space is run through to inserting in liquid Space in the body portion of described the first pressure meter P1, its head exposes and is connected with transmitter 2, in other words, the measure portion of the first pressure meter P1 is inserted in the liquified natural gas of fuel gas cylinder 1, and it shows and communications portion is exposed in air.
Further, described pressure regulator valve 3 comprises subnormal the first valve position of pipeline pressure and pipeline pressure the second valve position under abnormal.Pressure regulator valve 3 can be called reduction valve again, generally by parts such as valve seat, flap, bellows component, springs, formed, by Regulation spring, set outlet pressure, when outlet pressure reduces, flap aperture increases, when outlet pressure reaches predetermined pressure, flap aperture reduces, and for convenience of regulating, also comprises handwheel, be used for controlling flap aperture, when medium passes through, rotation hand wheel can change pressure, and this downstream pressure acts on sensing on bellows and realizes decompression voltage regulation function to spring immediately.In the present embodiment, the first valve position is to should the normal preset pressure of pressure regulator valve, also be initial valve position, preset pressure under the corresponding abnormal pressure of the second valve position, preset pressure under these abnormal conditions has comprised the empirical value factor of testing repeatedly in situation, certainly, described the second valve position can comprise the sub-valve position of the corresponding preset pressure of a plurality of correspondences.According to the control signal of transmitter 2, control pressure regulator valve 3 and be adjusted to corresponding valve position.
In Fig. 1, fuel-device also comprises transmission part 4, by transmission part 4, receive transmitter 2 control signals transmission pressure regulator valve 3 to corresponding valve position, Fig. 2 shows an embodiment's transmission part 4 and the action relationships between pressure regulator valve 3, the control signal of transmitter 2 outputs is controlled drive motor (not shown), drive motor makes the sun gear 41 of transmission part 4, sun gear 41 rotarily drive lever handle 42, thereby lever handle 42 rotates the handwheel 31 of pressure regulator valve 3, makes pressure regulator valve 3 be adjusted to corresponding valve position.Be appreciated that transmission part 4 also has the multiple replacement forms such as chain transmission, rope band transmission, worm and gear, the transmission part 4 in the present embodiment is only optimal way, not restrictive condition.
Preferably, described pressure regulator valve 3 can also regulate valve position by hand rotation handwheel 31.
Further, fuel-device also comprises vehicle display device (not shown), and transmitter 2 exports control signal to described vehicle display device and shows.
Preferably, between described vehicle display device and transmitter 2, by CANOPEN, (a kind of framework is (Control Area Network on control area net（CAN） road, CAN) the high-rise communications protocol on) EBI communication, vehicle display device comprises the Displaying Meter of car running computer or onboard system, transmitter 2 can directly connect the Displaying Meter in operator cabin by this CANOPEN EBI, and the pressure signal after control signal and change are sent transfers to vehicle display device.When realization is controlled gasifying pipe internal pressure automatically by pressure regulator valve, monitor the pressure in gasifying pipe and in fuel gas cylinder, to prevent misoperation.
Preferably, also comprise warning device, it connects transmitter 2 and reports to the police accordingly according to control signal.Warning device can be the flicker signal on vehicle display device, or the flicker signal or the sound indication device that arrange in addition.Can when frequently changing, pressure send a warning, to point out user abnormal.
In Fig. 1, fuel-device also comprises the liquid feed valve C1 that LNG Liquefied natural gas is inputed to fuel gas cylinder, the air throttle E1 of the control gas inlet connecting successively, control the liquid valve V2 of liquid output, thereby can be turned off the liquid Restrictor Valves E2 that stops LNG Liquefied natural gas to enter gasifying pipe, and be positioned on gasifying pipe and connect the vaporizer Pr of liquid Restrictor Valves E2, wherein the input end of air throttle E1 is connected in the gas-phase space of fuel gas cylinder, too high in order to prevent fuel gas pressure of the inside of a bottle, gas-phase space has also connected main safety valve simultaneously, when pressure surpasses safety value, start main safety valve SV1, prevent that main safety valve SV1 is malfunctioning, establish secondary safety valve SV2 simultaneously, at main safety valve SV1, cannot work and when pressure surpasses safety value, start secondary safety valve SV2, establish in addition the pressure balanced atmospheric valve V1 maintaining in container, in order to prevent that LNG Liquefied natural gas from refluxing, and also connects a safety check C2 between the output terminal of air throttle E1 and the liquid Space of fuel gas cylinder 1.
The utility model is installed pressure regulator valve on gasifying pipe, and after transmitter is processed conversion, export control signal by the first pressure meter on gas cylinder and the measured pressure of the second pressure meter on gasifying pipe, this control signal is used for controlling pressure regulator valve to realize the pressure of controlling automatically, in time gasifying pipe.
Although the utility model with preferred embodiment openly as above; but it is not for limiting claim; any those skilled in the art are not within departing from spirit and scope of the present utility model; can make possible change and modification, the scope that therefore protection domain of the present utility model should be defined with the utility model claim is as the criterion.
Claims (10)
1. a Vehicular liquefied gas fuel device, comprise fuel gas cylinder, gasifying pipe and pressure monitoring and controlling device, described pressure monitoring and controlling device comprises for measuring the first pressure meter of fuel gas pressure of the inside of a bottle, for measuring the second pressure meter of gasifying pipe internal pressure, be used for the transmitter that receives the first pressure meter and the second pressure meter two-way pressure signal and export control signal, it is characterized in that: also comprise and be located on gasifying pipe and be positioned on described the second pressure meter pressure regulator valve before, transmitter feeds back to described pressure regulator valve to control gasifying pipe pressure by control signal.
2. Vehicular liquefied gas fuel device as claimed in claim 1, is characterized in that, fuel gas cylinder gas-phase space is run through to inserting in liquid Space in described the first manometric body portion, and its head exposes and is connected with transmitter.
3. Vehicular liquefied gas fuel device as claimed in claim 1, is characterized in that, described pressure regulator valve comprises subnormal the first valve position of pipeline pressure and pipeline pressure the second valve position under abnormal.
4. Vehicular liquefied gas fuel device as claimed in claim 3, is characterized in that, also comprises transmission part, by transmission part, receives transmitter control signal transmission pressure regulator valve to corresponding valve position.
5. Vehicular liquefied gas fuel device as claimed in claim 4, is characterized in that, described pressure regulator valve is provided with for regulating the handwheel of valve position, and described transmission part drives handwheel rotation.
6. Vehicular liquefied gas fuel device as claimed in claim 3, is characterized in that, described pressure regulator valve can manual tune valve position.
7. Vehicular liquefied gas fuel device as claimed in claim 3, is characterized in that, described the second valve position comprises the sub-valve position of the corresponding preset pressure of a plurality of correspondences.
8. Vehicular liquefied gas fuel device as claimed in claim 1, is characterized in that, also comprises vehicle display device, and transmitter exports control signal to described vehicle display device and shows.
9. Vehicular liquefied gas fuel device as claimed in claim 8, is characterized in that, between described vehicle display device and transmitter, by CANOPEN EBI, communicates by letter.
10. Vehicular liquefied gas fuel device as claimed in claim 1, is characterized in that, also comprises warning device, and it connects transmitter and reports to the police accordingly according to control signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420396276.1U CN204003158U (en) | 2014-07-17 | 2014-07-17 | A kind of Vehicular liquefied gas fuel device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420396276.1U CN204003158U (en) | 2014-07-17 | 2014-07-17 | A kind of Vehicular liquefied gas fuel device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204003158U true CN204003158U (en) | 2014-12-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420396276.1U Expired - Fee Related CN204003158U (en) | 2014-07-17 | 2014-07-17 | A kind of Vehicular liquefied gas fuel device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204003158U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11117449B2 (en) | 2016-09-16 | 2021-09-14 | Carrier Corporation | Fuel system control for refrigeration unit engine |
| US12017512B2 (en) | 2018-08-10 | 2024-06-25 | Carrier Corporation | Crash detection system for transport refrigeration units |
-
2014
- 2014-07-17 CN CN201420396276.1U patent/CN204003158U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11117449B2 (en) | 2016-09-16 | 2021-09-14 | Carrier Corporation | Fuel system control for refrigeration unit engine |
| US12017512B2 (en) | 2018-08-10 | 2024-06-25 | Carrier Corporation | Crash detection system for transport refrigeration units |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141210 Termination date: 20180717 |