CN103674444A - Fuel oil system leak detection device and method - Google Patents
Fuel oil system leak detection device and method Download PDFInfo
- Publication number
- CN103674444A CN103674444A CN201210365077.XA CN201210365077A CN103674444A CN 103674444 A CN103674444 A CN 103674444A CN 201210365077 A CN201210365077 A CN 201210365077A CN 103674444 A CN103674444 A CN 103674444A
- Authority
- CN
- China
- Prior art keywords
- fuel system
- pressure
- gas
- fuel oil
- sensing sensor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims description 14
- 238000001514 detection method Methods 0.000 title abstract description 27
- 239000000295 fuel oil Substances 0.000 title abstract description 15
- 239000000446 fuel Substances 0.000 claims description 91
- 239000007789 gas Substances 0.000 claims description 44
- 239000011261 inert gas Substances 0.000 claims description 18
- 230000008447 perception Effects 0.000 claims description 9
- 239000008258 liquid foam Substances 0.000 claims description 4
- 238000005259 measurement Methods 0.000 claims description 2
- 238000000691 measurement method Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 7
- 238000005507 spraying Methods 0.000 description 3
- 230000003044 adaptive effect Effects 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Images
Landscapes
- Examining Or Testing Airtightness (AREA)
Abstract
The embodiment of the invention discloses a fuel oil system leak detection device and a fuel oil system leak detection method. The fuel oil system leak detection device comprises a gas source for providing high pressure gas, a one-way valve connected with the gas source, and a pressure-sensing sensor which is connected with a fuel oil system and the one-way valve respectively and can perform warning when detecting a decrease value of pressure in an airflow channel reaches a preset value in preset time, wherein the gas source, the one-way valve, the pressure-sensing sensor and the fuel oil system are connected with one another sequentially through air pipes. According to the fuel oil system leak detection device provided by the invention, the fuel oil system is inflated with the gas source through the one-way valve and the pressure-sensing sensor; and the pressure-sensing sensor performs warning when detecting the decrease value of the pressure reaches the preset value in the preset time, such that poor gas tightness of the fuel oil system can be prompted. The fuel oil system leak detection device is simple in structure and can effectively detect the gas tightness of the fuel oil system.
Description
Technical Field
The invention relates to the technical field of air tightness detection, in particular to a fuel oil system leakage detection device and method.
Background
The fuel system is used for supplying required fuel to fuel equipment, for example, a fuel system of an automobile supplies a certain amount of fuel with good plot and materialization to an engine according to the requirement of the running condition of the engine so as to be mixed with a certain amount of air to form a combustible mixture, and the fuel system also needs to store a certain amount of fuel to ensure that the automobile has a long driving range. Therefore, the air tightness of the fuel system directly affects the performance of the automobile, and how to effectively measure the air tightness of the fuel system becomes an urgent problem to be solved.
Disclosure of Invention
In view of the above, the present application provides a device and a method for detecting leakage of a fuel system, so as to effectively measure the air tightness of the fuel system.
In order to achieve the purpose, the invention provides the following technical scheme:
a fuel system leak hunting device comprising:
a gas source for providing high pressure gas;
a check valve connected to the gas source;
the pressure sensing sensor is respectively connected with the fuel system and the one-way valve and gives an alarm when detecting that the reduction value of the pressure in the air flow channel in the preset time reaches a preset value;
the air source, the one-way valve, the pressure sensing sensor and the fuel system are sequentially connected through a vent pipe.
The above apparatus, preferably, further comprises:
a leak detector to detect a specific leak location of the fuel system.
The above apparatus, preferably, the leak detector comprises a sprinkler for spraying liquid foam to the connection points of the components of the fuel system.
The above apparatus, preferably, the gas source comprises a gas source providing compressed inert gas.
The apparatus preferably, the leak detector comprises an inert gas pick-up.
The above apparatus, preferably, further comprises:
and the switch is arranged on the vent pipe and controls the opening and closing of the vent pipe.
The above apparatus, preferably, further comprises:
and the controller is used for controlling the switch to be closed when the pressure perception sensor detects that the reduction value of the pressure in the air flow channel within the preset time reaches the preset value.
According to the device, preferably, the air outlet pipeline of the fuel system leakage detection device is connected with the oil inlet of the fuel system through the hinged bolt.
A fuel system measuring method is applied to a fuel system measuring device, and the device comprises: the device comprises an air source, a one-way valve and a pressure sensing sensor; the method comprises the following steps:
high-pressure gas in the gas source sequentially enters the fuel system through the one-way valve and the pressure sensing sensor;
when the pressure value of the pressure sensing sensor reaches a preset value, closing the air source;
and the pressure perception sensor gives an alarm when detecting that the reduction value of the pressure in the airflow channel in the preset time reaches a preset value.
In the above method, preferably, the gas in the gas source is an inert gas, and accordingly, the method further includes:
detecting inert gas by an inert gas pickup meter to detect a specific leak location of the fuel system.
According to the scheme, the air source inflates the fuel system through the check valve and the pressure sensing sensor, when the pressure sensing sensor detects that the reduction value of the pressure in the preset time reaches the preset value, the alarm is given to prompt that the air tightness of the fuel system is poor, the fuel system leakage detection device is simple in structure, and the detection of the air tightness of the fuel system can be effectively achieved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a fuel system leak detection device provided in an embodiment of the present application;
FIG. 2 is a schematic structural diagram of a fuel system leak detection device provided by the embodiment of the application;
FIG. 3 is a schematic structural diagram of another fuel system leakage detection device provided by the embodiment of the application;
FIG. 4 is a schematic structural diagram of a fourth fuel system leakage detection device provided by the embodiment of the application.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The utility model discloses a fuel system device that leaks hunting's structural schematic diagram includes:
the device comprises an air source 1, a one-way air valve 2 and a pressure sensing sensor 3; wherein,
the gas source 1 is used for providing high-pressure gas, which may be compressed air, compressed inert gas, or the like.
The one-way gas valve 2 is connected with the gas source 1 and ensures the one-way circulation of high-pressure gas from the gas source to the fuel system;
the pressure perception sensor is respectively connected with the one-way gas valve 2 and the fuel system 4 and used for measuring the gas pressure in the gas flow channel and giving an alarm when detecting that the reduction value of the pressure in the gas flow channel in a preset time reaches a preset value so as to prompt that the gas tightness of the fuel system is poor, and a worker can further detect the fuel system after hearing the alarm;
the gas source 1, the one-way gas valve 2, the pressure sensor 3 and the fuel system 4 are connected in sequence through a vent pipe;
preferably, a gas outlet pipeline (i.e., a pipeline connecting the pressure sensor 3 and the fuel system 4) of the fuel system leakage detection device is connected with an oil inlet of the fuel system 4 through a hinged bolt.
Specifically, the process of detecting the fuel system by using the fuel system detection device comprises the following steps:
the method comprises the steps that an air source 1 is opened, high-pressure gas enters a fuel system 4 through a one-way gas valve 2 and a pressure sensing sensor 3, when the pressure sensing sensor 3 detects that the pressure in an air flow channel reaches a preset value (if the preset value can be set to be 800kpa, the specific limitation is not made here certainly, and the adaptive adjustment can be made according to practical application scenes), the air source 1 is closed, the fuel system 4 stops being inflated, pressure maintaining is carried out, if the preset value is within a preset time (if the preset value can be set to be 10 minutes, the specific limitation is not made here certainly, the adaptive adjustment can be made according to practical situations), the pressure sensing sensor 3 detects that the reduction value of the pressure in the air flow channel reaches the preset value, the fuel system leakage is explained, and the pressure sensing sensor 3 can give an.
The application provides a pair of fuel system device that leaks hunting, the air supply is aerifyd to fuel system through check valve and pressure perception sensor, reports to the police when the pressure perception sensor detects the reducing value of pressure in the time of predetermineeing and reaches the default to the suggestion fuel system gas tightness is not good, and this fuel system device that leaks hunting simple structure can effectively realize the detection to fuel system's gas tightness.
Further, on the basis of the fuel system leakage detection device shown in fig. 1, a schematic structural diagram of another fuel system leakage detection device provided by the embodiment of the present application is shown in fig. 2, and further includes a leak detector 5;
after detecting the leakage of the fuel system, the leak detector 5 is used for detecting the specific leakage position of the fuel system; the leak detector 5 can exist independently of the fuel system leak detection device, or can be a part of the fuel system measurement device and is not communicated with the vent pipe;
the leak detector 5 may be a sprinkler for spraying liquid foam to the connection points of the components of the fuel system, and determining the specific leakage position of the fuel system by observing whether the fuel system generates new bubbles except for spraying, that is, the position where the new bubbles are generated is the specific leakage position of the fuel system;
preferably, if the inert gas is compressed when the high-pressure gas is provided by the gas source, the detector 5 may also be an inert gas pickup instrument, after the leakage of the fuel system is detected, the detector 5 may pick up the inert gas at the connection points of the components of the fuel system, if the detector 5 detects the inert gas, the detection point is indicated to be leaked, otherwise, the detection point is indicated to be not leaked.
The fuel system that leaks hunting that this application embodiment provided when detecting fuel system and leaking, further detects out the concrete position of leaking of fuel system that leaks hunting through detecting 5 appearance, makes things convenient for the staff to the location of concrete position of leaking, has improved staff's work efficiency.
The structural schematic diagram of another fuel system leakage detection device provided by the embodiment of the application is shown in fig. 3, and further comprises a switch 6;
the switch 6 is used for controlling the opening and closing of the airflow channel, namely, only when the switch 6 is opened, the high-pressure gas provided by the gas source 1 can enter the fuel oil system 4; when the fuel system is detected, the switch 6 needs to be turned on while the air source is turned on, so that the fuel system can be inflated, and when the fuel system needs to be stopped from being inflated, the switch 6 is turned off.
Preferably, the switch 6 may be disposed on a vent pipe between the air source 1 and the check valve 2, or may be disposed on a vent pipe between the check valve 2 and the pressure sensor 3.
Further, on the basis of the fuel system leakage detection device shown in fig. 3, a fourth fuel system leakage detection device provided in the embodiment of the present application further includes: a controller 7;
the controller 7 is used for controlling the switch 6 to be closed when the pressure perception sensor detects that the reduction value of the pressure in the air flow channel in the preset time reaches the preset value, so as to stop charging the fuel system 4, and realize the automatic control of the switch 6. Further improve staff's work efficiency.
Based on the fuel system measuring device, the application also provides a fuel system measuring method, which comprises the following steps:
high-pressure gas in the gas source sequentially enters the fuel system through the one-way valve and the pressure sensing sensor;
when the pressure value of the pressure sensing sensor reaches a preset value, closing the air source;
and the pressure perception sensor gives an alarm when detecting that the reduction value of the pressure in the air flow channel in the preset time reaches a preset value, which indicates that the air tightness of the fuel oil system is poor and the fuel oil leaks after being filled.
After the pressure sensing sensor alarms, liquid foam may be sprayed onto the fuel system to check the specific leak location of the fuel system.
Preferably, the gas in the gas source may be an inert gas, and after the pressure sensing sensor gives an alarm, when a specific leakage position of the fuel system is detected, whether the inert gas leaks from each part of the fuel system may also be detected through an inert gas pickup instrument so as to detect the specific leakage position of the fuel system.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. A fuel system leak hunting device, comprising:
a gas source for providing high pressure gas;
a check valve connected to the gas source;
the pressure sensing sensor is respectively connected with the fuel system and the one-way valve and gives an alarm when detecting that the reduction value of the pressure in the air flow channel in the preset time reaches a preset value;
the air source, the one-way valve, the pressure sensing sensor and the fuel system are sequentially connected through a vent pipe.
2. The apparatus of claim 1, further comprising:
a leak detector to detect a specific leak location of the fuel system.
3. The apparatus of claim 2, wherein the leak detector comprises a sparger for sparging liquid foam to connection points of components of the fuel system.
4. The apparatus of claim 2, wherein the gas source comprises a gas source that provides a compressed inert gas.
5. The apparatus of claim 4, wherein the leak detector comprises an inert gas pick-up.
6. The apparatus of claim 1, further comprising:
and the switch is arranged on the vent pipe and controls the opening and closing of the vent pipe.
7. The apparatus of claim 6, further comprising:
and the controller is used for controlling the switch to be closed when the pressure perception sensor detects that the reduction value of the pressure in the air flow channel within the preset time reaches the preset value.
8. The device of claim 1, wherein the outlet line of the fuel system leak detector is connected to the inlet of the fuel system by a hinge bolt.
9. A fuel system measurement method is characterized by being applied to a fuel system measurement device, and the device comprises: the device comprises an air source, a one-way valve and a pressure sensing sensor; the method comprises the following steps:
high-pressure gas in the gas source sequentially enters the fuel system through the one-way valve and the pressure sensing sensor;
when the pressure value of the pressure sensing sensor reaches a preset value, closing the air source;
and the pressure perception sensor gives an alarm when detecting that the reduction value of the pressure in the airflow channel in the preset time reaches a preset value.
10. The method of claim 9, wherein the gas in the gas source is an inert gas, and correspondingly, the method further comprises:
detecting inert gas by an inert gas pickup meter to detect a specific leak location of the fuel system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210365077.XA CN103674444A (en) | 2012-09-26 | 2012-09-26 | Fuel oil system leak detection device and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210365077.XA CN103674444A (en) | 2012-09-26 | 2012-09-26 | Fuel oil system leak detection device and method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103674444A true CN103674444A (en) | 2014-03-26 |
Family
ID=50312674
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210365077.XA Pending CN103674444A (en) | 2012-09-26 | 2012-09-26 | Fuel oil system leak detection device and method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103674444A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105352677A (en) * | 2015-11-18 | 2016-02-24 | 重庆长安汽车股份有限公司 | Sealing testing apparatus of power battery pack |
| CN105699021A (en) * | 2016-01-13 | 2016-06-22 | 江西昌河汽车有限责任公司 | Vehicle fuel evaporation system air tightness detection method |
| CN105806571A (en) * | 2016-05-20 | 2016-07-27 | 斯丹德汽车系统（苏州）有限公司 | Car-mounted fuel system leakage detecting module and detecting method thereof |
| CN105890845A (en) * | 2015-11-24 | 2016-08-24 | 上海江南长兴重工有限责任公司 | Pipeline high strength and tightness test fixture and method |
| CN106840546A (en) * | 2017-03-30 | 2017-06-13 | 中国航空工业集团公司西安飞机设计研究所 | A kind of aircraft fuel oil leak detection system and method |
| US20190093826A1 (en) * | 2017-09-22 | 2019-03-28 | Toyota Jidosha Kabushiki Kaisha | Device equipped with tank |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5369984A (en) * | 1993-08-31 | 1994-12-06 | Environmental Systems Products, Inc. | Method and apparatus for testing of tank integrity of vehicle fuel systems |
| US20070033987A1 (en) * | 2003-10-28 | 2007-02-15 | Environmental Systems Products Holdings Inc. | System and method for testing fuel tank integrity |
| CN201004005Y (en) * | 2006-05-31 | 2008-01-09 | 博益(天津)气动技术研究所有限公司 | Car fuel supply system leakage and ventilation detection device |
| CN201096593Y (en) * | 2007-08-13 | 2008-08-06 | 比亚迪股份有限公司 | Automobile fuel system hermeticity detector |
| CN201754118U (en) * | 2010-06-28 | 2011-03-02 | 北汽福田汽车股份有限公司 | Tightness detection device and tightness detection system |
| CN202886074U (en) * | 2012-09-26 | 2013-04-17 | 安徽华菱汽车有限公司 | Leakage detector for fuel system |
-
2012
- 2012-09-26 CN CN201210365077.XA patent/CN103674444A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5369984A (en) * | 1993-08-31 | 1994-12-06 | Environmental Systems Products, Inc. | Method and apparatus for testing of tank integrity of vehicle fuel systems |
| US20070033987A1 (en) * | 2003-10-28 | 2007-02-15 | Environmental Systems Products Holdings Inc. | System and method for testing fuel tank integrity |
| CN201004005Y (en) * | 2006-05-31 | 2008-01-09 | 博益(天津)气动技术研究所有限公司 | Car fuel supply system leakage and ventilation detection device |
| CN201096593Y (en) * | 2007-08-13 | 2008-08-06 | 比亚迪股份有限公司 | Automobile fuel system hermeticity detector |
| CN201754118U (en) * | 2010-06-28 | 2011-03-02 | 北汽福田汽车股份有限公司 | Tightness detection device and tightness detection system |
| CN202886074U (en) * | 2012-09-26 | 2013-04-17 | 安徽华菱汽车有限公司 | Leakage detector for fuel system |
Non-Patent Citations (1)
| Title |
|---|
| 徐章遂等: "基于神经网络的柴油机燃油系统故障诊断", 《内燃机工程》 * |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105352677A (en) * | 2015-11-18 | 2016-02-24 | 重庆长安汽车股份有限公司 | Sealing testing apparatus of power battery pack |
| CN105890845A (en) * | 2015-11-24 | 2016-08-24 | 上海江南长兴重工有限责任公司 | Pipeline high strength and tightness test fixture and method |
| CN105699021A (en) * | 2016-01-13 | 2016-06-22 | 江西昌河汽车有限责任公司 | Vehicle fuel evaporation system air tightness detection method |
| CN105806571A (en) * | 2016-05-20 | 2016-07-27 | 斯丹德汽车系统（苏州）有限公司 | Car-mounted fuel system leakage detecting module and detecting method thereof |
| CN105806571B (en) * | 2016-05-20 | 2019-03-08 | 斯丹德汽车系统（苏州）有限公司 | Vehicle-mounted fuel systems leak detection module and its detection method |
| CN106840546A (en) * | 2017-03-30 | 2017-06-13 | 中国航空工业集团公司西安飞机设计研究所 | A kind of aircraft fuel oil leak detection system and method |
| US20190093826A1 (en) * | 2017-09-22 | 2019-03-28 | Toyota Jidosha Kabushiki Kaisha | Device equipped with tank |
| CN109538936A (en) * | 2017-09-22 | 2019-03-29 | 丰田自动车株式会社 | Equipped with the device of tank |
| CN109538936B (en) * | 2017-09-22 | 2020-11-03 | 丰田自动车株式会社 | Device equipped with a tank |
| US10935186B2 (en) * | 2017-09-22 | 2021-03-02 | Toyota Jidosha Kabushiki Kaisha | Device equipped with tank |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103674444A (en) | Fuel oil system leak detection device and method | |
| US8770012B2 (en) | Fuel leakage detection system and detection method | |
| CN102210554B (en) | Leakage detecting device for water dispenser and leakage detecting method thereof | |
| CN202471374U (en) | Multifunctional airtightness detection apparatus | |
| CN101592547A (en) | The method of anesthesia machine system Leak Detection | |
| CN203908741U (en) | Leakage detection device | |
| AU2006309254A1 (en) | Method and apparatus for continuously monitoring interstitial regions in gasoline storage facilities and pipelines | |
| CN203249742U (en) | Water leakage detection device for washing kettle | |
| CN112290062A (en) | Hydrogen safety test system of fuel cell automobile | |
| CN203249743U (en) | Gas tightness detection device | |
| CN108061629A (en) | A kind of Engine exhaust pipeline gas leak detection device and method | |
| CN104482415B (en) | A kind of family's natural gas automatic alarm system | |
| CN202886074U (en) | Leakage detector for fuel system | |
| CN105092185A (en) | Dual-fuel automobile airtightness and ventilation detection apparatus and control method thereof | |
| CN210266734U (en) | Gas pipeline leakage monitoring device capable of adjusting monitoring distance | |
| CN207438160U (en) | A kind of gate valve leak detection apparatus and pipe-line system | |
| CN205486676U (en) | Gas leak testing system | |
| CN211651975U (en) | Detection system in low pressure pipeline pressurize | |
| CN205468761U (en) | Car with gas leak testing function | |
| CN204177540U (en) | Leakage detection device of bent angle inflation valve | |
| CN210108640U (en) | Water heater gas tightness detection device | |
| CN205192709U (en) | Detection apparatus for pressure vessel reveals | |
| CN207850672U (en) | Pneumatic element test device | |
| CN111044229B (en) | Low-pressure pipeline pressure-maintaining internal detection system and detection method | |
| CN111579166A (en) | EVAP system fuel vapor leakage detection device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20140326 |