CN205404134U - LNG car gas supply system's testing arrangement - Google Patents
LNG car gas supply system's testing arrangement Download PDFInfo
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- CN205404134U CN205404134U CN201620211332.9U CN201620211332U CN205404134U CN 205404134 U CN205404134 U CN 205404134U CN 201620211332 U CN201620211332 U CN 201620211332U CN 205404134 U CN205404134 U CN 205404134U
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- lng
- surge tank
- hydraulic oil
- supply system
- air supply
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Abstract
The utility model provides a LNG car gas supply system's testing arrangement, but its simulation motor different work condition's running state are including rotational speed, gas demand and cooling temperature, fungible motor test rack. Hydraulic oil pump and inverter motor are connected, LNG drawing liquid pump, valves, oil cooler, hydraulic tank, hydraulic oil pump connect, control by temperature change circulation system is connected with the vaporizer, buffer tank, vaporizer and LNG drawing liquid pump are connected, buffer tank export installation flow control valve. The motor drives the hydraulic pump and rotates, gos back the simulation motor rotational speed except that providing power, flow control valve choke airflow simulation motor's gas demand, control by temperature change circulation system simulation motor's cooling system. Sensor information, control hydraulic system's pressure, the flow direction and the action of LNG drawing liquid pump are taken into account to intelligent control unit collect motor, gas cylinder liquid level. Intelligent control unit still can carry out the communication with the host computer as the equipment of maring air intake system, realizes control program download, debugging and data acquisition monitoring.
Description
Technical field
This utility model relates to the test device of LNG (liquefied natural gas vehicle) car air supply system, is specifically for use in the intelligent gas-supplying system containing LNG drawing liquid pump of a kind of LNG heavy-duty commercial vehicle.
Background technology
At present, LNG drawing liquid pump is applied to the air supply system of commercial car, and this air supply system has greater advantages than from supercharge system.But the detection of this type of air supply system, demarcation and debugging are all relevant to electromotor, and electromotor and adnexa thereof are extremely complex, therefore all very inconvenient for the research and development of Related product, detection and debugging.
Utility model content
This utility model is just specific to above this type of air supply system design, it is provided that the test device of a kind of LNG car air supply system, it is not necessary to electromotor participates in test, convenient, stable, reliable, is substantially reduced R&D cycle and the cost of this type of air supply system.
The technical solution of the utility model is:
A kind of test device of LNG car air supply system, it is characterised in that
Including fuel gas temperature sensor, flow control valve after intelligent control unit, LNG drawing liquid pump, hydraulic oil pump, valve group, frequency conversion motor, temperature control circulation system, surge tank gaseous-pressure sensor, hydraulic pressure sensor, hydraulic oil temperature sensor, surge tank, surge tank fuel gas temperature sensor, vaporization, specifically:
Hydraulic oil pump 5 is connected with frequency conversion motor 9 output shaft；
LNG drawing liquid pump 13, valve group 12, oil cooler 2, hydraulic oil container 3, hydraulic oil pump 5 are connected by fluid pressure line, and wherein oil cooler 2 is installed between the pipeline that valve group 12 is exported to hydraulic oil container 3；
Temperature control circulation system 17 is connected by water lines with carburator 15；
Surge tank 24, carburator 15 and LNG drawing liquid pump 13 are connected by air pipe；Flow control valve 26 is installed in surge tank 24 outlet；
Hydraulic pressure sensor 21 is installed in valve group 12；
Surge tank gaseous-pressure sensor 22 is installed on surge tank 24；
After vaporization, fuel gas temperature sensor 20 is installed on the pipeline after carburator 15；
Surge tank fuel gas temperature sensor 23 is installed on surge tank 24；
Hydraulic oil temperature sensor 6 is installed on the fluid pressure line of valve group 12 entrance；
Intelligent control unit connects fuel gas temperature sensor 20 after oil cooler 2, hydraulic oil temperature sensor 6, carburator, hydraulic pressure sensor 21, surge tank gaseous-pressure sensor 22, surge tank fuel gas temperature sensor 23, frequency conversion motor 9, valve group 12, flow control valve 26 and LNG gas cylinder liquidometer respectively by wire harness.
Further, temperature control circulation system 17 includes temperature control box 18, water tank 16 and water pump 19, the cooling system of temperature control circulation system 17 parameter simulation electromotor.
Further, valve group includes bypass mechanism 8 and changement 11, and valve group controls work and the commutation of hydraulic system pressure and LNG drawing liquid pump.
Further, described LNG drawing liquid pump is piston pump.
Further, frequency conversion motor 9 includes motor 7 and converter 10, the corresponding kinetic parameter of frequency conversion motor simulated engine.
Further, described flow control valve, its adoption rate electromagnetic valve, it is used for controlling extraction flow, the gas inlet parameter of flow control valve simulated engine.
Further, surge tank 24 exports and installs gas flowmeter 25 and flow control valve 26 successively.
Further, hydraulic oil flow gauge 4 is installed on valve group 12 and is exported between oil cooler 2.
Further, intelligent control unit includes being connected data acquisition and monitoring processing module, module is controlled；
Data acquisition and monitoring module is responsible for gathering and detect each sensor, frequency conversion motor, LNG gas cylinder liquid level take into account the information of flow；
Control module to be analyzed calculating and judging according to the information of data acquisition and monitoring processing module, control valve group and flow-control valve events, it is achieved the control to the control of LNG drawing liquid pump and extraction flow.
Further, intelligent control unit connects host computer, and intelligent control unit includes controlling download program debugging module, controls download program debugging module and is downloaded, stores and debugs for control program for controlling module call connected.
The test device of LNG car air supply system of the present utility model include intelligent control unit, LNG gas cylinder, LNG drawing liquid pump, hydraulic oil pump, hydraulic oil container, valve group, frequency conversion motor, temperature control circulation system, gas flowmeter, hydraulic oil flow gauge, surge tank gaseous-pressure sensor, hydraulic pressure sensor, surge tank fuel gas temperature sensor, vaporization after fuel gas temperature sensor, hydraulic oil temperature sensor, flow control valve.Described intelligent control unit: be used for storing control program, gather the relevant informations such as each sensor, frequency conversion motor and LNG gas cylinder liquidometer, and carry out analytical calculation and judgement, control valve group and flow-control valve events, it is achieved the control to the control of LNG drawing liquid pump and extraction flow.
Described LNG drawing liquid pump, it adopts hydraulic drive piston to move back and forth principle, it is possible to extracted out from LNG gas cylinder by LNG liquid, is the special drawing liquid pump of a kind of LNG gas cylinder.
Described hydraulic oil pump, it couples with frequency conversion motor output shaft, and frequency conversion motor drives its work, provides hydraulic power for LNG drawing liquid pump.
Described valve group, it comprises bypass mechanism and changement, it is possible to achieve the bypass of hydraulic circuit and commutation control, thus realizing the control that hydraulic system pressure and LNG drawing liquid pump are worked and commutated.
Described frequency conversion motor, it includes motor and converter, and effect is simulated engine rotating speed and drives hydraulic oil pump action, provides power for hydraulic oil pump.
Described temperature control circulation system, it includes temperature control box, water tank and water pump, and temperature control box controls the water temperature in water tank and keeps within the specific limits, and water pump circulates by the water in water tank, and the effect of temperature control circulation system is the cooling system of simulated engine.
Described flow control valve, its adoption rate electromagnetic valve control mode, it is used for controlling extraction flow, its effect is the gas inlet demand of simulated engine.
Described gas flowmeter, it is installed on air exit position, is used for measuring extraction flow.
Described hydraulic oil flow gauge, it is installed on hydraulic oil pump exit, is used for measuring hydraulic fluid flow rate.
After described hydraulic pressure sensor, carburator, fuel gas temperature sensor, surge tank fuel gas temperature sensor, surge tank gaseous-pressure sensor, hydraulic oil temperature sensor send the signal detected to intelligent control unit, and controlling valve group action for intelligent control unit provides basis for estimation.
Test device described in the utility model has the advantage that
1, can simulated engine cooling system, cooling water temperature is controlled；
2, can simulated engine demand on gas, capacity is controlled；
3, can simulated engine rotating speed, and for hydraulic oil pump provide power, rotating speed is controlled；
4, the duty of disposable type electromotor can be simulated；
5, can any operating mode of simulated engine, including limiting condition；
6, can arbitrarily change hydraulic oil pump and LNG drawing liquid pump is tested；
7, the test of air supply system, demarcation and debugging can be completed.
Accompanying drawing explanation
Fig. 1 is the structure principle chart of an embodiment of the test device of LNG car air supply system of the present utility model.
In figure: 1-intelligent control unit, 2-oil cooler, 3-hydraulic oil container, 4-hydraulic oil flow gauge, 5-hydraulic oil pump, 6-hydraulic oil temperature sensor, 7-motor, 8-bypass mechanism, 9-frequency conversion motor, 10-converter, 11-changement, 12-valve group, 13-LNG drawing liquid pump, 14-LNG gas cylinder, 15-carburator, 16-water tank, 17-temperature control circulation system, 18-temperature control box, 19-water pump, fuel gas temperature sensor after 20-carburator, 21-hydraulic pressure sensor, 22-surge tank gaseous-pressure sensor, 23-surge tank fuel gas temperature sensor, 24-surge tank, 25-gas flow sensor, 26-gas flow control valve.
Detailed description of the invention
In conjunction with drawings and the specific embodiments, the utility model is further described.
The test device of the air supply system containing LNG drawing liquid pump of present invention design, it is possible to substitute automotive engine test bench in air supply system test completely.As it is shown in figure 1, hydraulic oil pump 5 is connected with the output shaft of frequency conversion motor 9 (including motor 7 and converter 10) by frock；LNG drawing liquid pump 13, valve group 12 (valve group includes bypass mechanism 8 and changement 11), oil cooler 2, hydraulic oil pump 5 and hydraulic oil container 3 are connected by fluid pressure line, and wherein oil cooler 2 is installed between the pipeline that valve group 12 is exported to hydraulic oil container 3；Temperature control circulation system 17 (including temperature control box 18, water tank 16 and water pump 19) is connected by water lines with carburator 15；Surge tank 24, carburator 15 and LNG drawing liquid pump 13 are connected by air pipe；Hydraulic oil flow gauge 4 is installed on valve group and is exported between oil cooler；Surge tank 24 exports installs gas flowmeter 25 and flow control valve 26 successively；Hydraulic pressure sensor 21 is installed in valve group 12；Surge tank gaseous-pressure 22 sensor is installed on surge tank 24；After carburator, fuel gas temperature sensor 20 is installed on the pipeline after carburator 15；Surge tank fuel gas temperature sensor 23 is installed on surge tank 24；Hydraulic oil temperature sensor 6 is installed on the fluid pressure line of valve group 12 entrance.
This test system specific works principle is as follows: the rotating speed that can be controlled motor 7 by converter 10 carrys out simulated engine rotating speed, and motor 7 work strip hydrodynamic pressure oil pump 5 rotates to be system and provides hydraulic power；Intelligent control unit 1 gathers the relevant information of frequency conversion motor 9, transmitter and each sensor 6,20,21,22,23 etc., LNG drawing liquid pump 13 action is driven by controlling the action of valve group 12, LNG liquid is pumped from LNG gas cylinder 14, after carburator 15 is vaporized, enters surge tank 24；Intelligent control unit 1 can control system exhaust flow by control flow control valve 26 and carry out the demand on gas of simulated engine；Cooling down the temperature of water in the controlled controlling the water circulation case of temperature control box 18, water pump 19 makes cooling water circulate between carburator 15 and water tank 16, the cooling system of whole temperature control circulation system 17 simulated engine.Motor speed, extraction flow, water tank water temperature and flow all can be set the running status under simulated engine difference operating mode according to real engine demand.Intelligent control unit can carry out communication as detection, debugging, equipment and the host computer of demarcating gas handling system, it is achieved controls the download of program and debugging and data acquisition and monitoring.
Finally should be noted that: above example only technical scheme in order to this case to be described is not intended to limit；Although this case being described in detail with reference to preferred embodiment; those of ordinary skill in the field are it is understood that modify to the detailed description of the invention of this case or portion of techniques feature carries out equivalent replacement; without deviating from the spirit of this case technical scheme, it all should be encompassed in the middle of the technical scheme scope that this case is claimed.
Claims (10)
1. the test device of a LNG car air supply system, it is characterised in that
Including fuel gas temperature sensor, flow control valve after intelligent control unit, LNG drawing liquid pump, hydraulic oil pump, valve group, frequency conversion motor, temperature control circulation system, surge tank gaseous-pressure sensor, hydraulic pressure sensor, hydraulic oil temperature sensor, surge tank, surge tank fuel gas temperature sensor, vaporization, specifically:
Hydraulic oil pump (5) is connected with frequency conversion motor (9) output shaft；
LNG drawing liquid pump (13), valve group (12), oil cooler (2), hydraulic oil container (3), hydraulic oil pump (5) are connected by fluid pressure line, and wherein oil cooler (2) is installed between the pipeline that valve group (12) is exported to hydraulic oil container (3)；
Temperature control circulation system (17) is connected by water lines with carburator (15)；
Surge tank (24), carburator (15) and LNG drawing liquid pump (13) are connected by air pipe；Flow control valve (26) is installed in surge tank (24) outlet；
Hydraulic pressure sensor (21) is installed in valve group (12)；
Surge tank gaseous-pressure sensor (22) is installed on surge tank (24)；
After vaporization, fuel gas temperature sensor (20) is installed on the pipeline after carburator (15)；
Surge tank fuel gas temperature sensor (23) is installed on surge tank (24)；
Hydraulic oil temperature sensor (6) is installed on the fluid pressure line of valve group (12) entrance；
Intelligent control unit connects fuel gas temperature sensor (20) after oil cooler (2), hydraulic oil temperature sensor (6), carburator, hydraulic pressure sensor (21), surge tank gaseous-pressure sensor (22), surge tank fuel gas temperature sensor (23), frequency conversion motor (9), valve group (12), flow control valve (26) and LNG gas cylinder liquidometer respectively by wire harness.
2. the test device of a kind of LNG car air supply system according to claim 1, it is characterized in that, temperature control circulation system (17) includes temperature control box (18), water tank (16) and water pump (19), the cooling system of temperature control circulation system (17) parameter simulation electromotor.
3. the test device of a kind of LNG car air supply system according to claim 1, it is characterised in that valve group includes bypass mechanism (8) and changement (11), valve group controls work and the commutation of hydraulic system pressure and LNG drawing liquid pump.
4. the test device of a kind of LNG car air supply system according to claim 1, it is characterised in that described LNG drawing liquid pump is piston pump.
5. the test device of a kind of LNG car air supply system according to claim 1, it is characterised in that frequency conversion motor (9) includes motor (7) and converter (10), the corresponding kinetic parameter of frequency conversion motor simulated engine.
6. the test device of a kind of LNG car air supply system according to claim 1, it is characterised in that described flow control valve, its adoption rate electromagnetic valve, is used for controlling extraction flow, the gas inlet parameter of flow control valve simulated engine.
7. the test device of a kind of LNG car air supply system according to claim 1, it is characterised in that gas flowmeter (25) and flow control valve (26) are installed in surge tank (24) outlet successively.
8. the test device of a kind of LNG car air supply system according to claim 1, it is characterised in that hydraulic oil flow gauge (4) is installed on valve group (12) and is exported between oil cooler (2).
9. the test device according to the arbitrary described a kind of LNG car air supply system of claim 1 to 8, it is characterised in that intelligent control unit includes the data acquisition and monitoring processing module, the control module that are connected；
Data acquisition and monitoring module is responsible for gathering and detect each sensor, frequency conversion motor, LNG gas cylinder liquid level take into account the information of flow；
Control module to be analyzed calculating and judging according to the information of data acquisition and monitoring processing module, control valve group and flow-control valve events, it is achieved the control to the control of LNG drawing liquid pump and extraction flow.
10. the test device of a kind of LNG car air supply system according to claim 9, it is characterized in that, intelligent control unit connects host computer, intelligent control unit includes controlling download program debugging module, controls download program debugging module and is downloaded, stores and debugs for control program for controlling module call connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620211332.9U CN205404134U (en) | 2016-03-18 | 2016-03-18 | LNG car gas supply system's testing arrangement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620211332.9U CN205404134U (en) | 2016-03-18 | 2016-03-18 | LNG car gas supply system's testing arrangement |
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| Publication Number | Publication Date |
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| CN205404134U true CN205404134U (en) | 2016-07-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201620211332.9U Expired - Fee Related CN205404134U (en) | 2016-03-18 | 2016-03-18 | LNG car gas supply system's testing arrangement |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109405935A (en) * | 2018-12-18 | 2019-03-01 | 东北林业大学 | A kind of air flow sensor detection device and detection method |
| CN110821716A (en) * | 2018-08-07 | 2020-02-21 | 东莞中集物流装备技术研究院有限公司 | Vehicle and natural gas supply system thereof |
| CN111044294A (en) * | 2018-10-15 | 2020-04-21 | 长春致远新能源装备股份有限公司 | Matching test system for vehicle LNG (liquefied Natural gas) supply module and gas engine |
| CN111287864A (en) * | 2018-12-10 | 2020-06-16 | 陕西重型汽车有限公司 | Automobile-used LNG feed system |
| CN112096542A (en) * | 2020-09-23 | 2020-12-18 | 潍柴动力股份有限公司 | Method and device for detecting air supply of hydraulic pump |
-
2016
- 2016-03-18 CN CN201620211332.9U patent/CN205404134U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110821716A (en) * | 2018-08-07 | 2020-02-21 | 东莞中集物流装备技术研究院有限公司 | Vehicle and natural gas supply system thereof |
| CN111044294A (en) * | 2018-10-15 | 2020-04-21 | 长春致远新能源装备股份有限公司 | Matching test system for vehicle LNG (liquefied Natural gas) supply module and gas engine |
| CN111287864A (en) * | 2018-12-10 | 2020-06-16 | 陕西重型汽车有限公司 | Automobile-used LNG feed system |
| CN109405935A (en) * | 2018-12-18 | 2019-03-01 | 东北林业大学 | A kind of air flow sensor detection device and detection method |
| CN109405935B (en) * | 2018-12-18 | 2023-12-05 | 东北林业大学 | Air flow sensor detection device and detection method |
| CN112096542A (en) * | 2020-09-23 | 2020-12-18 | 潍柴动力股份有限公司 | Method and device for detecting air supply of hydraulic pump |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160727 Termination date: 20180318 |
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| CF01 | Termination of patent right due to non-payment of annual fee |