CN216386110U - Vehicle liquefied natural gas pressure detection device - Google Patents
Vehicle liquefied natural gas pressure detection device Download PDFInfo
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- CN216386110U CN216386110U CN202122369145.7U CN202122369145U CN216386110U CN 216386110 U CN216386110 U CN 216386110U CN 202122369145 U CN202122369145 U CN 202122369145U CN 216386110 U CN216386110 U CN 216386110U
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Abstract
The application relates to the technical field of vehicle pressure detection, and discloses a vehicle liquefied natural gas pressure detection device, which comprises a first sampling component, a second sampling component, a first sensor, a second sensor and a power supply. The first sensor is installed on the first sampling component, the second sensor is installed on the second sampling component, the power supply is utilized to be respectively connected with the first sensor and the second sensor, and the first sampling component and the second sampling component are respectively installed on different specified positions of pressure to be detected in a vehicle liquefied natural gas system, so that the pressure of a device at the specified position can be accurately detected.
Description
Technical Field
The application relates to the technical field of vehicle pressure detection, in particular to a vehicle liquefied natural gas pressure detection device.
Background
During driving of a Liquefied Natural Gas (LNG) vehicle, the vehicle may malfunction due to low pressure of the LNG, so that the vehicle may not operate normally. In the related art, when a vehicle has a fault, it can be determined through fault detection of the related art that the vehicle is a vehicle fault due to low lng pressure, but specific faulty devices cannot be further determined so as to affect normal use of the vehicle.
SUMMERY OF THE UTILITY MODEL
The embodiment of the application provides a vehicle liquefied natural gas pressure detection device, which determines a specific device with a fault through accurately detecting the pressure of a device at a specified position.
In a first aspect, an embodiment of the present application provides a vehicle liquefied natural gas pressure detection apparatus, including: the device comprises a first sampling component, a second sampling component, a first sensor, a second sensor and a power supply, wherein the first sensor is arranged on the first sampling component, and the second sensor is arranged on the second sampling component; the power supply is respectively connected with the first sensor and the second sensor; and respectively installing the first sampling component and the second sampling component at different specified positions of pressure to be detected in a vehicle liquefied natural gas system.
Optionally, both ends of the first sampling component are respectively connected with a designated component in the vehicle liquefied natural gas system through a standard interface, and the standard interface is one of 3/4-16UNF or 7/8-14 UNF.
Optionally, both ends of the second sampling component are respectively connected with a designated component in the vehicle liquefied natural gas system through a standard interface, and the standard interface is one of 3/4-16UNF or 7/8-14 UNF.
Optionally, the first sampling member and the second sampling member are both detachable members.
Optionally, the apparatus further comprises: a first pressure gauge and a second pressure gauge; the power supply is connected with the first pressure gauge and the second pressure gauge respectively, the first pressure gauge is further used for being connected with the first sensor, and the second pressure gauge is further used for being connected with the second sensor.
Optionally, the first sampling component is configured to obtain liquefied natural gas at a first specified pressure location to be detected; the first sensor is used for detecting the pressure value of the liquefied natural gas at the first specified pressure position to be detected; the second sampling component is used for acquiring liquefied natural gas at a second specified pressure position to be detected; and the second sensor is used for detecting the pressure value of the liquefied natural gas at the second specified pressure position to be detected.
Alternatively, the device is applied to a vehicle driving running state or to a vehicle stopping state.
Optionally, the first pressure gauge is connected to the first sensor in a wireless or wired manner, and the second pressure gauge is connected to the second sensor in a wireless or wired manner.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed to be used in the embodiments of the present application will be briefly described below, and it is obvious that the drawings described below are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a vehicle liquefied natural gas pressure detection apparatus according to an embodiment of the present application;
fig. 2 is a schematic structural diagram of a connection relationship between a first sampling component 101 and a designated device in a vehicle liquefied natural gas system according to an embodiment of the present application;
fig. 3 is a schematic structural diagram of the second sampling component 102 according to an embodiment of the present application, which is connected to a designated device in a vehicle liquefied natural gas system;
fig. 4 is a connection relationship between a part of devices in a vehicle liquefied natural gas system and a vehicle liquefied natural gas pressure detection device according to an embodiment of the present application;
fig. 5 is a schematic structural diagram of a vehicle liquefied natural gas pressure detection apparatus according to an embodiment of the present application.
Detailed Description
In order to make the technical solutions of the present application better understood by those of ordinary skill in the art, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings.
It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are capable of operation in sequences other than those illustrated or described herein. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. Rather, they are merely examples of apparatus consistent with certain aspects of the present application, as detailed in the appended claims.
In the specific practice process, when the LNG vehicle is driven, the vehicle can break down due to low LNG pressure, so that the vehicle cannot normally run. In the related art, when a vehicle malfunctions, it can be determined through the malfunction detection of the related art that the vehicle is a malfunction of the vehicle due to low LNG pressure, but specific malfunctioning devices cannot be further determined, so that normal use of the vehicle is affected.
To this end, the application provides a vehicle liquefied natural gas pressure detection device, and the device includes first sample part, second sample part, first sensor, second sensor and power supply. The first sensor and the second sensor are respectively connected by the power supply through the first sensor mounted on the first sampling part and the second sensor mounted on the second sampling part, so that the power supply can supply power to the first sensor and the second sensor. And then the first sampling component and the second sampling component are respectively arranged at different specified positions of the pressure to be detected in the vehicle liquefied natural gas system so as to accurately detect the pressure of the device at the specified position.
The design idea of the embodiment of the present application is described above, and of course, the apparatus provided in the embodiment of the present application is not limited to the application scenario shown in the vehicle liquefied natural gas system, and may also be used in other possible application scenarios, and the embodiment of the present application is not limited thereto.
To further illustrate the technical solutions provided by the embodiments of the present application, the following detailed description is made with reference to the accompanying drawings and the detailed description. Although the embodiments of the present application provide the operational steps of the apparatus as shown in the following embodiments or figures, more or fewer operational steps may be included in the method based on conventional or non-inventive efforts. In steps where no necessary causal relationship exists logically, the order of execution of the steps is not limited to that provided by the embodiments of the present application.
As shown in fig. 1, there is shown a schematic structural diagram of a vehicle lng pressure detection apparatus, including: the device comprises a first sampling part 101, a second sampling part 102, a first sensor 103, a second sensor 104 and a power supply 105, wherein the first sensor 103 is arranged on the first sampling part 101, and the second sensor 104 is arranged on the second sampling part 102; the power supply 105 is respectively connected with the first sensor 103 and the second sensor 104; the first sampling part 101 and the second sampling part 102 are installed at a and B, respectively, of different specified pressures to be detected in the vehicle liquefied natural gas system.
The first sampling part 101 is used for acquiring liquefied natural gas at a first specified pressure position to be detected; the first sensor 103 is used for detecting the pressure value of the liquefied natural gas at a first designated pressure position to be detected; a second sampling unit 102 for obtaining the liquefied natural gas at a second specified pressure location to be detected; and a second sensor 104 for detecting a pressure value of the liquefied natural gas at a second specified pressure location to be detected.
Here, both ends of the first sampling part 101 are respectively connected with a designated part at a in the vehicle liquefied natural gas system through a standard interface, which is one of 3/4-16UNF or 7/8-14 UNF. The two ends of the second sampling part 102 are respectively connected with a designated part at B in the vehicle liquefied natural gas system through a standard interface, and the standard interface is one of 3/4-16UNF or 7/8-14 UNF. As shown in fig. 2, one end of the first sampling component 101 is connected to a gas pipeline of a gas tank in a vehicle lng system through a standard interface, the other end of the first sampling component 101 is connected to a pressure regulator in the vehicle lng system through the standard interface, and the first sensor 103 is mounted on the first sampling component 101. As shown in fig. 3, one end of the second sampling unit 102 is connected to a pressure regulator in the vehicle lng system through a standard interface, the other end of the first sampling unit 102 is connected to a gas pipeline connected to an engine in the vehicle lng system through a standard interface, and the second sensor 104 is mounted on the second sampling unit 102.
For example, for the case that the first sampling component 101 is installed at the outlet of the gas tank in the vehicle lng system and the second sampling component 102 is installed at the outlet of the pressure regulator in the vehicle lng system, the apparatus may be configured to: and determining a vehicle fault node according to the pressure value detected by the first sensor 103 and the pressure value detected by the second sensor 104.
Specifically, the pressure value at the outlet of the gas tank is greater than a first preset threshold, and if the pressure value detected by the first sensor 103 is not greater than the first preset threshold, it is determined that the vehicle fault node is at the gas tank. And if the pressure value at the outlet of the pressure regulator is within a second preset threshold range, and if the pressure value detected by the first sensor 103 is greater than the first preset threshold and the pressure value detected by the second sensor 104 is not within the second preset threshold range, determining that the vehicle fault node is the pressure regulator.
For example, assuming that the first preset threshold value is 10 kg and the second preset threshold value ranges from 8 to 10 kg, the vehicle failure node is determined as being at the gas tank when the pressure value at the gas tank outlet is detected to be less than 10 kg. And when the pressure value at the outlet of the gas tank is detected to be more than 10 kilograms and the pressure value at the outlet of the pressure regulator is detected to be more than 11 kilograms, determining the fault node of the vehicle as the pressure regulator.
Due to the LNG storage characteristics of LNG vehicles, tank pressure may vary from high to low as the vehicle is used. When the vehicle is fed with lng, the gas pressure at the tank is more likely to be low. Because the gas tank output gas pressure is not enough or the pressure regulator fails to work, the vehicle has the phenomena of low liquefied natural gas pressure and insufficient engine power, so the specific reasons of vehicle faults can be determined by respectively carrying out pressure detection on the gas tank and the pressure regulator.
Optionally, the first sampling member 101 and the second sampling member 102 are both detachable members. And the device may be applied to a vehicle driving running state or to a vehicle stopping state. The device is arranged to be a detachable part, and pressure detection is favorably carried out on a plurality of positions to be detected.
As shown in fig. 4, a connection relationship between some components in the vehicle lng system and the vehicle lng pressure detection device is shown. The method comprises the following steps: gas tank 401, pressure regulator 402, filter 403, injection valve 404, engine 405. The first sampling member 101 may be installed at a between the gas tank 401 and the pressure regulator 402, and the second sampling member 102 may be installed at B between the pressure regulator 402 and the filter 403. Or the first sampling member 101 is installed at B between the pressure regulator 402 and the filter 403, and the second sampling member 102 is installed at C between the filter 403 and the injection valve 404. The present disclosure is merely exemplary, and the present disclosure does not limit the specific positional connection relationship between the first sampling part 101 and the second sampling part 102.
In addition, as shown in fig. 5, the apparatus further includes: a first pressure gauge 106 and a second pressure gauge 107; the power supply 105 is respectively connected with a first pressure gauge 106 and a second pressure gauge 107, the first pressure gauge 106 is also used for connecting the first sensor 103, and the second pressure gauge 107 is also used for connecting the second sensor 104.
Optionally, the first pressure gauge 106 is connected to the first sensor 103 in a wireless or wired manner, and the second pressure gauge 107 is connected to the second sensor 104 in a wireless or wired manner.
By displaying the pressure values detected by the first sensor 103 and the second sensor 104 in real time in the first pressure gauge 106 and the second pressure gauge 107 respectively, the vehicle can find out the specific cause of the vehicle fault in time even if the vehicle is in a driving running state.
It should be noted that although several units or sub-units of the apparatus are mentioned in the above detailed description, such division is merely exemplary and not mandatory. Indeed, the features and functions of two or more units described above may be embodied in one unit, according to embodiments of the application. Conversely, the features and functions of one unit described above may be further divided into embodiments by a plurality of units.
Further, while the operations of the methods of the present application are depicted in the drawings in a particular order, this does not require or imply that these operations must be performed in this particular order, or that all of the illustrated operations must be performed, to achieve desirable results. Additionally or alternatively, certain steps may be omitted, multiple steps combined into one step execution, and/or one step broken down into multiple step executions.
While the preferred embodiments of the present application have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all alterations and modifications as fall within the scope of the application.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present application without departing from the spirit and scope of the application. Thus, if such modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is intended to include such modifications and variations as well.
Claims (8)
1. A vehicle liquefied natural gas pressure detection apparatus, comprising: the device comprises a first sampling component, a second sampling component, a first sensor, a second sensor and a power supply, wherein the first sensor is arranged on the first sampling component, and the second sensor is arranged on the second sampling component; the power supply is respectively connected with the first sensor and the second sensor; and respectively installing the first sampling component and the second sampling component at different specified positions of pressure to be detected in a vehicle liquefied natural gas system.
2. The vehicle liquefied natural gas pressure detection apparatus according to claim 1, wherein both ends of the first sampling unit are respectively connected to a designated unit in the vehicle liquefied natural gas system through a standard interface, and the standard interface is one of 3/4-16UNF or 7/8-14 UNF.
3. The vehicle liquefied natural gas pressure detection apparatus according to claim 1, wherein both ends of the second sampling unit are respectively connected to a designated unit in the vehicle liquefied natural gas system through a standard interface, and the standard interface is one of 3/4-16UNF or 7/8-14 UNF.
4. The vehicle liquefied natural gas pressure detection apparatus according to claim 1, wherein the first sampling member and the second sampling member are each a detachable member.
5. The vehicular liquefied natural gas pressure detection apparatus according to claim 1, further comprising: a first pressure gauge and a second pressure gauge; the power supply is connected with the first pressure gauge and the second pressure gauge respectively, the first pressure gauge is further used for being connected with the first sensor, and the second pressure gauge is further used for being connected with the second sensor.
6. The vehicle liquefied natural gas pressure detection apparatus according to claim 1, wherein the first sampling means is configured to acquire liquefied natural gas at a first specified pressure location to be detected; the first sensor is used for detecting the pressure value of the liquefied natural gas at the first specified pressure position to be detected; the second sampling component is used for acquiring liquefied natural gas at a second specified pressure position to be detected; and the second sensor is used for detecting the pressure value of the liquefied natural gas at the second specified pressure position to be detected.
7. The vehicular liquefied natural gas pressure detection apparatus according to claim 1, wherein the apparatus is applied to a vehicle driving operation state or to a vehicle stop state.
8. The vehicle liquefied natural gas pressure detection apparatus according to claim 5, wherein the first pressure gauge is connected to the first sensor by wireless or wired connection, and the second pressure gauge is connected to the second sensor by wireless or wired connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122369145.7U CN216386110U (en) | 2021-09-28 | 2021-09-28 | Vehicle liquefied natural gas pressure detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122369145.7U CN216386110U (en) | 2021-09-28 | 2021-09-28 | Vehicle liquefied natural gas pressure detection device |
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| Publication Number | Publication Date |
|---|---|
| CN216386110U true CN216386110U (en) | 2022-04-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202122369145.7U Active CN216386110U (en) | 2021-09-28 | 2021-09-28 | Vehicle liquefied natural gas pressure detection device |
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| CN (1) | CN216386110U (en) |
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- 2021-09-28 CN CN202122369145.7U patent/CN216386110U/en active Active
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